ecos: packages/hal/arm/arch/current/src/vectors.S annotate

annotate packages/hal/arm/arch/current/src/vectors.S @ 3173:afb59e9b7339

* cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs are disabled in critical sections, or only IRQs. The default is to disable both and translate any FIQs into IRQs for delivery. The alternative is for FIQs to essentially exist outside eCos. * include/hal_arch.h (CPSR_THREAD_INITIAL): * include/hal_intr.h (CPSR_INTR_MASK, HAL_*_INTERRUPTS) (HAL_*_FIQ): Add definitions for separating FIQ from IRQ. * src/hal_mk_defs.c (main): * src/vectors.S (start, FIQ, IRQ, spurious_IRQ): (hal_*_interrupts, hal_*_FIQ, __fiq_stack_base): Add support for separating FIQ from IRQ in critical section processing.

author	nickg
date	Fri, 11 May 2012 10:24:33 +0000
parents	a501465abec6
children

rev	line source
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1 // #========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	2 // #
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	3 // # vectors.S
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	4 // #
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	5 // # ARM exception vectors
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	6 // #
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	7 // #========================================================================
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	8 // ####ECOSGPLCOPYRIGHTBEGIN####
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	9 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	10 // This file is part of eCos, the Embedded Configurable Operating System.
2800 a501465abec6 * src/vectors.S: Use .type xxx, function everywhere where jlarmour parents: 2775 diff changeset	11 // Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2009 Free Software Foundation, Inc.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	12 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	13 // eCos is free software; you can redistribute it and/or modify it under
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	14 // the terms of the GNU General Public License as published by the Free
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	15 // Software Foundation; either version 2 or (at your option) any later
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	16 // version.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	17 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	18 // eCos is distributed in the hope that it will be useful, but WITHOUT
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	19 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	21 // for more details.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	22 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	23 // You should have received a copy of the GNU General Public License
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	24 // along with eCos; if not, write to the Free Software Foundation, Inc.,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	25 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	26 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	27 // As a special exception, if other files instantiate templates or use
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	28 // macros or inline functions from this file, or you compile this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	29 // and link it with other works to produce a work based on this file,
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	30 // this file does not by itself cause the resulting work to be covered by
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	31 // the GNU General Public License. However the source code for this file
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	32 // must still be made available in accordance with section (3) of the GNU
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	33 // General Public License v2.
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	34 //
2729 74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	35 // This exception does not invalidate any other reasons why a work based
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	36 // on this file might be covered by the GNU General Public License.
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	37 // -------------------------------------------
74dbf4c3f2e1 Update all copyright banners to reflect FSF ownership; fix and improve licence text. jlarmour parents: 2594 diff changeset	38 // ####ECOSGPLCOPYRIGHTEND####
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	39 // #========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	40 // ######DESCRIPTIONBEGIN####
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	41 // #
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	42 // # Author(s): nickg, gthomas
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	43 // # Contributors: nickg, gthomas
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	44 // # Date: 1999-02-20
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	45 // # Purpose: ARM exception vectors
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	46 // # Description: This file defines the code placed into the exception
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	47 // # vectors. It also contains the first level default VSRs
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	48 // # that save and restore state for both exceptions and
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	49 // # interrupts.
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	50 // #
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	51 // #####DESCRIPTIONEND####
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	52 // #
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	53 // #========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	54
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	55 #include <pkgconf/hal.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	56 #include <pkgconf/hal_arm.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	57 #ifdef CYGPKG_KERNEL // no CDL yet
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	58 #include <pkgconf/kernel.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	59 #else
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	60 # undef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
6 d376b777e2ce Merge from eCos master repository on 1999-05-14-19:27:43-BST jlarmour parents: 4 diff changeset	61 # undef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	62 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	63 #include <cyg/hal/hal_platform_setup.h>
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	64
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	65 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	66 // The CDL should enforce this
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	67 #undef CYGHWR_HAL_ARM_DUMP_EXCEPTIONS
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	68 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	69
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	70 #include "arm.inc"
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	71
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	72 #ifdef __thumb__
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	73 // Switch to thumb mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	74 #define THUMB_MODE(_r_, _l_) \
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	75 ldr _r_,=_l_ ## f+1 ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	76 bx _r_ ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	77 .pool ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	78 .code 16 ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	79 .thumb_func ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	80 _l_:
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	81
1334 8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	82 // Call thumb function from ARM mode, return to ARM
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	83 // mode afterwards
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	84 #define THUMB_CALL(_r_, _l_, _f_) \
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	85 ldr _r_,=_f_+1 ;\
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	86 mov lr,pc ;\
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	87 bx _r_ ;\
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	88 .pool ;\
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	89 .code 16 ;\
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	90 .thumb_func ;\
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	91 ldr _r_,=_l_ ## f ;\
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	92 bx _r_ ;\
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	93 .pool ;\
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	94 .code 32 ;\
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	95 _l_:
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	96
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	97 // Switch to ARM mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	98 #define ARM_MODE(_r_, _l_) \
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	99 ldr _r_,=_l_ ## f ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	100 bx _r_ ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	101 .pool ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	102 .code 32 ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	103 _l_:
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	104
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	105 // Function definition, start executing body in ARM mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	106 #define FUNC_START_ARM(_name_, _r_) \
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	107 .code 16 ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	108 .thumb_func ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	109 .globl _name_ ;\
2800 a501465abec6 * src/vectors.S: Use .type xxx, function everywhere where jlarmour parents: 2775 diff changeset	110 .type _name_, function ;\
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	111 _name_: ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	112 ldr _r_,=_name_ ## _ARM ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	113 bx _r_ ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	114 .code 32 ;\
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	115 _name_ ## _ARM:
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	116
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	117 #else
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	118
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	119 // Switch to thumb mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	120 #define THUMB_MODE(_r_, _l_)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	121
1334 8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	122 // Call ARM function
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	123 #define THUMB_CALL(_r_, _l_, _f_) \
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	124 bl _f_
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	125
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	126 // Switch to ARM mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	127 #define ARM_MODE(_r_, _l_)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	128
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	129 // Function definition, start executing body in ARM mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	130 #define FUNC_START_ARM(_name_, _r_) \
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	131 .globl _name_; \
2800 a501465abec6 * src/vectors.S: Use .type xxx, function everywhere where jlarmour parents: 2775 diff changeset	132 .type _name_, function ;\
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	133 _name_:
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	134
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	135 #endif
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	136
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	137
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	138
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	139 #define PTR(name) \
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	140 .##name: .word name
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	141
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	142 // CYGHWR_HAL_ROM_VADDR is used when compiling for a different location
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	143 // from the base of ROM. hal_platform_setup.h might define it. For
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	144 // example, if flash is from 0x50000000 upwards (as on SA11x0), and we are
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	145 // to execute at 0x50040000, then we want the reset vector to point to
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	146 // 0x0004pqrs - the unmapped ROM address of the code - rather than
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	147 // 0x0000pqrs, which is the offset into our flash block.
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	148 //
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	149 // But usually it's not defined, so the behaviour is the obvious.
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	150
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	151 #ifndef UNMAPPED
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	152 #ifdef CYGHWR_HAL_ARM_HAS_MMU
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	153 # ifndef CYGHWR_HAL_ROM_VADDR
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	154 # define CYGHWR_HAL_ROM_VADDR __exception_handlers
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	155 # endif
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	156 # define UNMAPPED(x) ((x)-CYGHWR_HAL_ROM_VADDR)
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	157 #else
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	158 # define UNMAPPED(x) (x)
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	159 #endif
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	160 #endif
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	161
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	162 #define UNMAPPED_PTR(name) \
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	163 .##name: .word UNMAPPED(name)
16 4f2df4ab82c8 Merge from eCos master repository on 1999-06-18-15:25:04-BST jlarmour parents: 14 diff changeset	164
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	165 // .file "vectors.S"
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	166
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	167
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	168 // CYGHWR_LED_MACRO can be defined in hal_platform_setup.h. It's free to
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	169 // use r0+r1. Argument is in "\x" - cannot use macro arguments since the
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	170 // macro may contain #-chars and use of arguments cause these to be
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	171 // interpreted as CPP stringify operators.
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	172 // See example in PID hal_platform_setup.h.
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	173 #ifndef CYGHWR_LED_MACRO
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	174 #define CYGHWR_LED_MACRO
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	175 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	176
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	177 .macro LED x
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	178 CYGHWR_LED_MACRO
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	179 .endm
306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	180
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	181
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	182 //==========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	183 // Hardware exception vectors.
2594 4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	184 // This entire section will be copied to the vector table base (by default at
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	185 // location 0x0000) at startup time.
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	186 //
2594 4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	187
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	188 #ifndef CYGHWR_HAL_VECTOR_TABLE_BASE
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	189 # define CYGHWR_HAL_VECTOR_TABLE_BASE 0x0
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	190 #endif /* ifdef CYGHWR_HAL_VECTOR_TABLE_BASE */
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	191
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	192 .code 32
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	193 .section ".vectors","ax"
160 0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	194
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	195 // This macro allows platforms to add their own code at the very start of
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	196 // the image. This may be required in some circumstances where eCos ROM
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	197 // based code does not run immediately upon reset and/or when some sort of
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	198 // special header is required at the start of the image.
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	199 #ifdef PLATFORM_PREAMBLE
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	200 PLATFORM_PREAMBLE
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	201 #endif
0d0f03f76f6a Merge from eCos master repository on 2001-06-01-18:52:13-BST jlarmour parents: 159 diff changeset	202
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	203 .global __exception_handlers
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	204 __exception_handlers:
159 511f4dc167f6 Merge from eCos master repository on 2001-05-18-01:30:05-BST jlarmour parents: 158 diff changeset	205 #ifdef CYGSEM_HAL_ROM_RESET_USES_JUMP
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	206 // Assumption: ROM code has these vectors at the hardware reset address.
e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	207 // A simple jump removes any address-space dependencies [i.e. safer]
e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	208 b reset_vector // 0x00
e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	209 #else
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	210 ldr pc,.reset_vector // 0x00
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	211 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	212 ldr pc,.undefined_instruction // 0x04
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	213 ldr pc,.software_interrupt // 0x08 start && software int
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	214 ldr pc,.abort_prefetch // 0x0C
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	215 ldr pc,.abort_data // 0x10
2363 f0b2da61ab63 Fix for boot vectors on LPC2xxx platforms - on behalf of Sergei Gavrikov and Wang Cui gthomas parents: 2126 diff changeset	216 #ifdef CYGNUM_HAL_ARM_VECTOR_0x14
f0b2da61ab63 Fix for boot vectors on LPC2xxx platforms - on behalf of Sergei Gavrikov and Wang Cui gthomas parents: 2126 diff changeset	217 .word CYGNUM_HAL_ARM_VECTOR_0x14
f0b2da61ab63 Fix for boot vectors on LPC2xxx platforms - on behalf of Sergei Gavrikov and Wang Cui gthomas parents: 2126 diff changeset	218 #else
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	219 .word 0 // unused
2363 f0b2da61ab63 Fix for boot vectors on LPC2xxx platforms - on behalf of Sergei Gavrikov and Wang Cui gthomas parents: 2126 diff changeset	220 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	221 ldr pc,.IRQ // 0x18
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	222 ldr pc,.FIQ // 0x1C
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	223
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	224 // The layout of these pointers should match the vector table above since
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	225 // they are copied in pairs.
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	226 .global vectors
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	227 vectors:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	228 UNMAPPED_PTR(reset_vector) // 0x20
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	229 PTR(undefined_instruction) // 0x24
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	230 PTR(software_interrupt) // 0x28
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	231 PTR(abort_prefetch) // 0x2C
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	232 PTR(abort_data) // 0x30
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	233 .word 0 // 0x34
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	234 PTR(IRQ) // 0x38
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	235 PTR(FIQ) // 0x3c
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	236 #ifdef CYGSEM_HAL_ARM_PID_ANGEL_BOOT
26 4741a3c3496a Merge from eCos master repository on 1999-07-23-05:47:06-BST jlarmour parents: 24 diff changeset	237 PTR(start) // This is copied to 0x28 for bootup // 0x40
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	238 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	239 // location 0x40 is used for storing DRAM size if known
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	240 // for some platforms.
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	241
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	242 //
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	243 // "Vectors" - fixed location data items
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	244 // This section contains any data which might be shared between
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	245 // an eCos application and any other environment, e.g. the debug
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	246 // ROM.
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	247 //
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	248 .section ".fixed_vectors"
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	249 // Interrupt/exception VSR pointers
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	250 .globl hal_vsr_table
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	251 hal_vsr_table:
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	252 .rept 8
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	253 .long 0
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	254 .endr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	255
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	256 .globl hal_dram_size
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	257 hal_dram_size:
148 8f2f7615e727 Merge from eCos master repository on 2001-01-12-06:43:03-GMT jlarmour parents: 145 diff changeset	258 .long 0
8f2f7615e727 Merge from eCos master repository on 2001-01-12-06:43:03-GMT jlarmour parents: 145 diff changeset	259 // what, if anything, hal_dram_type means is up to the platform
8f2f7615e727 Merge from eCos master repository on 2001-01-12-06:43:03-GMT jlarmour parents: 145 diff changeset	260 .globl hal_dram_type
8f2f7615e727 Merge from eCos master repository on 2001-01-12-06:43:03-GMT jlarmour parents: 145 diff changeset	261 hal_dram_type:
8f2f7615e727 Merge from eCos master repository on 2001-01-12-06:43:03-GMT jlarmour parents: 145 diff changeset	262 .long 0
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	263
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	264 .balign 16
110 84e4bde58b26 Merge from eCos master repository on 2000-07-14-22:00:02-BST jlarmour parents: 108 diff changeset	265 #ifdef CYGSEM_HAL_VIRTUAL_VECTOR_SUPPORT
84e4bde58b26 Merge from eCos master repository on 2000-07-14-22:00:02-BST jlarmour parents: 108 diff changeset	266 // Vectors used to communicate between eCos and ROM environments
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	267 .globl hal_virtual_vector_table
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	268 hal_virtual_vector_table:
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	269 .rept CYGNUM_CALL_IF_TABLE_SIZE
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	270 .long 0
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	271 .endr
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	272 #endif
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	273
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	274 #ifdef CYGHWR_HAL_ARM_ICE_THREAD_SUPPORT
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	275 .balign 16 // Should be at 0x50
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	276 ice_thread_vector:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	277 .long 0 // Must be 'MICE'
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	278 .long 0 // Pointer to thread support vector
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	279 .long 0 // eCos executing flag
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	280 .long 0 // Must be 'GDB '
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	281 #endif // CYGHWR_HAL_ARM_ICE_THREAD_SUPPORT
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	282 .balign 32
96 b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	283
b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	284 // Other vectors - this may include "fixed" locations
b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	285 #ifdef PLATFORM_VECTORS
b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	286 PLATFORM_VECTORS
b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	287 #endif
b15c60e34c84 Merge from eCos master repository on 2000-06-06-05:24:42-BST jlarmour parents: 80 diff changeset	288
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	289 .text
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	290 // Startup code which will get the machine into supervisor mode
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	291 .global reset_vector
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	292 .type reset_vector,function
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	293 reset_vector:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	294 PLATFORM_SETUP1 // Early stage platform initialization
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	295 // which can set DRAM size at 0x40
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	296 // see <cyg/hal/hal_platform_setup.h>
4 1d7f19c9e4d1 Merge from eCos master repository on 1999-05-11-21:11:10-BST jlarmour parents: 2 diff changeset	297
54 f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	298 // Come here to reset board
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	299 warm_reset:
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	300
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	301 #if defined(CYG_HAL_STARTUP_RAM) && \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	302 !defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS)
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	303 mrs r7,cpsr // move back to IRQ mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	304 and r7,r7,#CPSR_MODE_BITS
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	305 cmp r7,#CPSR_SUPERVISOR_MODE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	306 beq start
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	307 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	308
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	309 // We cannot access any LED registers until after PLATFORM_SETUP1
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	310 LED 7
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	311
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	312 mov r0,#0 // move vectors
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	313 ldr r1,=__exception_handlers
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	314 #ifndef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	315 // Wait with this if stubs are included (see further down).
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	316 ldr r2,[r1,#0x04] // undefined instruction
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	317 str r2,[r0,#0x04]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	318 ldr r2,[r1,#0x24]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	319 str r2,[r0,#0x24]
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	320 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	321 ldr r2,[r1,#0x08] // software interrupt
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	322 str r2,[r0,#0x08]
46 797268ecc331 Merge from eCos master repository on 1999-10-19-18:55:31-BST jlarmour parents: 40 diff changeset	323
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	324 #ifdef CYGHWR_HAL_ARM_ICE_THREAD_SUPPORT
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	325 ldr r2,=ice_thread_vector
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	326 sub r2,r2,r1 // compute fixed (low memory) address
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	327 ldr r3,=0x4D494345 // 'MICE'
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	328 str r3,[r2],#4
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	329 ldr r3,=hal_arm_ice_thread_handler
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	330 str r3,[r2],#4
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	331 mov r3,#1
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	332 str r3,[r2],#4
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	333 ldr r3,=0x47444220 // 'GDB '
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	334 str r3,[r2],#4
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	335 #endif // CYGHWR_HAL_ARM_ICE_THREAD_SUPPORT
46 797268ecc331 Merge from eCos master repository on 1999-10-19-18:55:31-BST jlarmour parents: 40 diff changeset	336
154 e2d866e32dac Merge from eCos master repository on 2001-02-26-23:18:05-GMT jlarmour parents: 152 diff changeset	337 #if defined(CYGSEM_HAL_ARM_PID_ANGEL_BOOT)
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	338 // Ugly hack to get into supervisor mode
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	339 ldr r2,[r1,#0x40]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	340 str r2,[r0,#0x28]
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	341
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	342 LED 6
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	343
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	344 swi // switch to supervisor mode
14 01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 10 diff changeset	345 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	346
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	347 // =========================================================================
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	348 // Real startup code. We jump here from the reset vector to set up the world.
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	349 .globl start
2800 a501465abec6 * src/vectors.S: Use .type xxx, function everywhere where jlarmour parents: 2775 diff changeset	350 .type start,function
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	351 start:
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	352
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	353 LED 5
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	354
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	355 #if defined(CYG_HAL_STARTUP_RAM) && \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	356 !defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	357 // If we get restarted, hang here to avoid corrupting memory
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	358 ldr r0,.init_flag
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	359 ldr r1,[r0]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	360 1: cmp r1,#0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	361 bne 1b
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	362 ldr r1,init_done
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	363 str r1,[r0]
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	364 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	365
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	366 // Reset software interrupt pointer
2594 4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	367 ldr r0,=CYGHWR_HAL_VECTOR_TABLE_BASE // move vectors
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	368 ldr r1,.__exception_handlers
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	369 #if defined(CYG_HAL_STARTUP_RAM) && \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	370 !defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS)
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	371 cmp r7,#CPSR_SUPERVISOR_MODE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	372 beq 10f
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	373 #endif
2594 4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	374 ldr r2,[r1,#HAL_ARM_SWI_VECTOR_ADDR] // software interrupt
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	375 str r2,[r0,#HAL_ARM_SWI_VECTOR_ADDR]
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	376 10:
2594 4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	377 ldr r2,[r1,#HAL_ARM_IRQ_VECTOR] // IRQ
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	378 str r2,[r0,#HAL_ARM_IRQ_VECTOR]
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	379 ldr r2,[r1,#HAL_ARM_IRQ_VECTOR_ADDR]
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	380 str r2,[r0,#HAL_ARM_IRQ_VECTOR_ADDR]
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	381 ldr r2,[r1,#HAL_ARM_FIQ_VECTOR] // FIQ
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	382 str r2,[r0,#HAL_ARM_FIQ_VECTOR]
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	383 ldr r2,[r1,#HAL_ARM_FIQ_VECTOR_ADDR]
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	384 str r2,[r0,#HAL_ARM_FIQ_VECTOR_ADDR]
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	385 ldr r2,[r1,#HAL_ARM_PREFETCH_VECTOR] // abort (prefetch)
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	386 str r2,[r0,#HAL_ARM_PREFETCH_VECTOR]
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	387 ldr r2,[r1,#HAL_ARM_PREFETCH_VECTOR_ADDR]
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	388 str r2,[r0,#HAL_ARM_PREFETCH_VECTOR_ADDR]
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	389 ldr r2,[r1,#HAL_ARM_ABORT_VECTOR] // abort (data)
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	390 str r2,[r0,#HAL_ARM_ABORT_VECTOR]
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	391 ldr r2,[r1,#HAL_ARM_ABORT_VECTOR_ADDR]
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	392 str r2,[r0,#HAL_ARM_ABORT_VECTOR_ADDR]
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	393
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	394 LED 4
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	395
172 cd45958b28ff Merge from eCos master repository on 2001-07-20-10:24:43-BST jlarmour parents: 161 diff changeset	396 #if defined(CYG_HAL_STARTUP_ROM) \|\| defined(CYG_HAL_STARTUP_ROMRAM)
54 f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	397 // Set up reset vector
2594 4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	398 ldr r0,=CYGHWR_HAL_VECTOR_TABLE_BASE
132 0ae0bc38e387 Merge from eCos master repository on 2000-10-31-00:30:36-GMT jlarmour parents: 112 diff changeset	399 ldr r1,.__exception_handlers
2594 4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	400 # ifndef CYGSEM_HAL_KEEP_RESET_VECTOR
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	401 ldr r2,[r1,#HAL_ARM_RESET_VECTOR] // reset vector instruction
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	402 str r2,[r0,#HAL_ARM_RESET_VECTOR]
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	403 # ifndef CYGSEM_HAL_ROM_RESET_USES_JUMP // if using jump, reset vector address is not referenced
54 f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	404 ldr r2,=warm_reset
2594 4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	405 str r2,[r0,#HAL_ARM_RESET_VECTOR_ADDR]
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	406 # endif
4ca9d5dac8b0 * src/arm.ld: Discard C++ EH-related sections when we can't jlarmour parents: 2363 diff changeset	407 # endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	408 // Relocate [copy] data from ROM to RAM
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	409 ldr r3,.__rom_data_start
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	410 ldr r4,.__ram_data_start
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	411 ldr r5,.__ram_data_end
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	412 cmp r4,r5 // jump if no data to move
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	413 beq 2f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	414 sub r3,r3,#4 // loop adjustments
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	415 sub r4,r4,#4
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	416 1: ldr r0,[r3,#4]! // copy info
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	417 str r0,[r4,#4]!
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	418 cmp r4,r5
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	419 bne 1b
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	420 2:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	421 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	422
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	423 // initialize interrupt/exception environments
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	424 ldr sp,.__startup_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	425 mov r0,#(CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE\|CPSR_IRQ_MODE)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	426 msr cpsr,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	427 ldr sp,.__exception_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	428 mov r0,#(CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE\|CPSR_UNDEF_MODE)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	429 msr cpsr,r0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	430 ldr sp,.__exception_stack
3173 afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	431 #ifndef CYGOPT_HAL_ARM_FIQ_DISABLE
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	432 mov r0,#(CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE\|CPSR_FIQ_MODE)
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	433 msr cpsr,r0
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	434 ldr sp,.__fiq_stack
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	435 #endif
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	436
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	437 // initialize CPSR (machine state register)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	438 mov r0,#(CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE\|CPSR_SUPERVISOR_MODE)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	439 msr cpsr,r0
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	440
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	441 // Note: some functions in LIBGCC1 will cause a "restore from SPSR"!!
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	442 msr spsr,r0
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	443
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	444 // initialize stack
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	445 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	446 // use interrupt stack for system initialization since it's bigger
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	447 // than the "startup" stack in this configuration
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	448 ldr sp,.__interrupt_stack
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	449 #else
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	450 ldr sp,.__startup_stack
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	451 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	452
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	453 // clear BSS
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	454 ldr r1,.__bss_start
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	455 ldr r2,.__bss_end
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	456 mov r0,#0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	457 cmp r1,r2
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	458 beq 2f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	459 1: str r0,[r1],#4
2775 0f319c78e393 Fix thinko in last checkin. nickg parents: 2773 diff changeset	460 cmp r2,r1
0f319c78e393 Fix thinko in last checkin. nickg parents: 2773 diff changeset	461 bhi 1b
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	462 2:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	463
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	464 // Run kernel + application in THUMB mode
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	465 THUMB_MODE(r1,10)
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	466
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	467 LED 3
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	468
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	469 // Call platform specific hardware initialization
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	470 bl hal_hardware_init
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	471
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	472 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	473 bl initialize_stub
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	474
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	475 // Now that stub is initialized, change vector. It is possible
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	476 // to single-step through most of the init code, except the below.
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	477 // Put a breakpoint at the call to cyg_hal_invoke_constructors to
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	478 // pass over this bit (s-s depends on internal state in the stub).
50 a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	479 #endif
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	480
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	481 #if defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS) \|\| \
a0774359f013 Merge from eCos master repository on 1999-11-02-17:02:15-GMT jlarmour parents: 46 diff changeset	482 defined(CYGIMP_HAL_PROCESS_ALL_EXCEPTIONS)
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	483 mov r0,#0 // move vectors
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	484 ldr r1,=__exception_handlers
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	485 ldr r2,[r1,#0x04] // undefined instruction
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	486 str r2,[r0,#0x04]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	487 ldr r2,[r1,#0x24]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	488 str r2,[r0,#0x24]
36 e97d78785e2d Merge from eCos master repository on 1999-09-12-15:40:34-BST jlarmour parents: 34 diff changeset	489 #endif
112 02ea4320376c Merge from eCos master repository on 2000-07-21-21:01:39-BST jlarmour parents: 110 diff changeset	490
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	491 #if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT) \
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	492 \|\| defined(CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT)
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	493 .extern hal_ctrlc_isr_init
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	494 bl hal_ctrlc_isr_init
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	495 #endif
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	496
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	497 LED 2
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	498
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	499 // Run through static constructors
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	500 bl cyg_hal_invoke_constructors
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	501
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	502 LED 1
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	503
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	504 // This starts up the eCos kernel
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	505 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
946 b4d06891fe1a Fix a thumb build problem, and switch to arm-elf-gcc -mthumb rather bartv parents: 316 diff changeset	506 ldr r1,=__startup_stack
b4d06891fe1a Fix a thumb build problem, and switch to arm-elf-gcc -mthumb rather bartv parents: 316 diff changeset	507 mov sp,r1
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	508 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	509 bl cyg_start
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	510 _start_hang:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	511 b _start_hang
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	512 .code 32
54 f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	513
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	514 .global reset_platform
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	515 .type reset_platform,function
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	516 reset_platform:
70 c5536bad4c24 Merge from eCos master repository on 2000-02-11-15:46:40-GMT jlarmour parents: 66 diff changeset	517 #ifdef CYGSEM_HAL_ROM_MONITOR
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	518 // initialize CPSR (machine state register)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	519 mov r0,#(CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE\|CPSR_SUPERVISOR_MODE)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	520 msr cpsr,r0
54 f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	521 b warm_reset
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	522 #else
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	523 mov r0,#0
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	524 mov pc,r0 // Jump to reset vector
f10165814f1e Merge from eCos master repository on 1999-11-19-22:24:39-GMT jlarmour parents: 50 diff changeset	525 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	526
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	527 init_done:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	528 .long 0xDEADB00B
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	529
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	530 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	531 // Exception handlers
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	532 // Assumption: get here from a non-user context [mode]
1002 609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	533 // except in case of standalone app. running in user mode
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	534 // (CYGOPT_HAL_ARM_WITH_USER_MODE should have been defined)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	535 //
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	536 .code 32
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	537 undefined_instruction:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	538 ldr sp,.__undef_exception_stack // get good stack
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	539 stmfd sp!,{r0-r5} // save some supervisor regs
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	540 mrs r1,spsr
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	541 tst r1,#CPSR_THUMB_ENABLE
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	542 subeq r0,lr,#4 // PC at time of interrupt (ARM)
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	543 subne r0,lr,#2 // PC at time of interrupt (thumb)
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	544 mov r2,#CYGNUM_HAL_EXCEPTION_ILLEGAL_INSTRUCTION
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	545 mov r3,sp
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	546 b call_exception_handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	547
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	548 .code 32
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	549 software_interrupt:
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	550 stmfd sp!,{r8}
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	551 ldr r8,.__undef_exception_stack // get good stack
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	552 stmfd r8!,{r0-r5} // save some supervisor regs
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	553 mov r3,r8
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	554 ldmfd sp!,{r8}
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	555 mrs r1,spsr
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	556 tst r1,#CPSR_THUMB_ENABLE
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	557 subeq r0,lr,#4 // PC at time of SWI (ARM)
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	558 subne r0,lr,#2 // PC at time of SWI (thumb)
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	559 mov r2,#CYGNUM_HAL_EXCEPTION_INTERRUPT
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	560 b call_exception_handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	561
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	562 .code 32
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	563 abort_prefetch:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	564 ldr sp,.__undef_exception_stack // get good stack
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	565 stmfd sp!,{r0-r5} // save some supervisor regs
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	566 sub r0,lr,#4 // PC at time of interrupt
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	567 mrs r1,spsr
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	568 mov r2,#CYGNUM_HAL_EXCEPTION_CODE_ACCESS
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	569 mov r3,sp
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	570 b call_exception_handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	571
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	572 .code 32
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	573 abort_data:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	574 ldr sp,.__undef_exception_stack // get good stack
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	575 stmfd sp!,{r0-r5} // save some supervisor regs
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	576 sub r0,lr,#4 // PC at time of interrupt
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	577 mrs r1,spsr
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	578 mov r2,#CYGNUM_HAL_EXCEPTION_DATA_ACCESS
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	579 mov r3,sp
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	580 b call_exception_handler
20 5f5102441818 Merge from eCos master repository on 1999-07-02-23:17:07-BST jlarmour parents: 16 diff changeset	581
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	582 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	583 // Dispatch an exception handler.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	584
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	585 .code 32
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	586 call_exception_handler:
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	587 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	588 // On Entry:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	589 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	590 // r4,r5 = scratch
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	591 // r3 = pointer to temp save area
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	592 // r2 = vector number
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	593 // r1 = exception psr
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	594 // r0 = exception pc
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	595 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	596 // [r3+20]: exception r5
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	597 // [r3+16]: exception r4
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	598 // [r3+12]: exception r3
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	599 // [r3+8] : exception r2
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	600 // [r3+4] : exception r1
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	601 // [r3] : exception r0
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	602
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	603 mrs r4,cpsr // switch to Supervisor Mode
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	604 bic r4,r4,#CPSR_MODE_BITS
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	605 orr r4,r4,#CPSR_SUPERVISOR_MODE
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	606 msr cpsr,r4
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	607
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	608 mov r5,sp // save original svc sp
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	609 mov r4,lr // and original svc lr
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	610 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	611 // Make sure we use the GDB stack.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	612 ldr sp,.__GDB_stack
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	613 cmp r5,sp // already on GDB stack?
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	614 bhi 10f
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	615 ldr r4,.__GDB_stack_base
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	616 cmp r5,r4
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	617 movhi sp,r5
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	618 10:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	619 #endif
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	620 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	621 // r5 holds original svc sp, current sp is stack to use
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	622 // r4 holds original svc lr, which must also be preserved
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	623 //
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	624
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	625 stmfd sp!,{r0-r2,r4,r5} // push svc_sp, svc_lr, vector, psr, pc
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	626
1002 609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	627 #ifdef CYGOPT_HAL_ARM_WITH_USER_MODE
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	628 // did exception occur in user mode ?
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	629 and r2, r1, #CPSR_MODE_BITS
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	630 cmp r2, #CPSR_USER_MODE
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	631 bne 1f
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	632 stmfd sp, {r8-r12, sp, lr}^ // get user mode regs
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	633 nop
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	634 sub sp, sp, #4*7
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	635 bal 2f
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	636 1:
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	637 #endif
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	638 // switch to pre-exception mode to get banked regs
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	639 mov r0,sp // r0 survives mode switch
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	640 mrs r2,cpsr // Save current psr for return
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	641 orr r1,r1,#CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE
316 e17d1cf55283 ARM exception handler fix msalter parents: 210 diff changeset	642 bic r1,r1,#CPSR_THUMB_ENABLE
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	643 msr cpsr,r1
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	644 stmfd r0!,{r8-r12,sp,lr}
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	645 msr cpsr,r2 // back to svc mode
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	646 mov sp,r0 // update stack pointer
1002 609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	647 2:
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	648 // now save pre-exception r0-r7 on current stack
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	649 ldmfd r3,{r0-r5}
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	650 stmfd sp!,{r0-r7}
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	651
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	652 // SP needs fixing if exception occured in SVC mode.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	653 // The original SVC LR is still in place so that
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	654 // does not need to be fixed here.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	655 ldr r1,[sp,#armreg_cpsr]
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	656 and r1,r1,#CPSR_MODE_BITS
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	657 cmp r1,#CPSR_SUPERVISOR_MODE
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	658 ldreq r1,[sp,#armreg_svcsp]
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	659 streq r1,[sp,#armreg_sp]
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	660
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	661 #ifdef CYGHWR_HAL_ARM_DUMP_EXCEPTIONS
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	662 mov r0,sp
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	663 ldr r1,.__dump_procs
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	664 ldr r2,[sp,#armreg_vector]
1307 1750695510ac Fix exception debug in THUMB mode - from Thomas Koeller gthomas parents: 1084 diff changeset	665 ldr r1,[r1,r2,lsl #2]
1750695510ac Fix exception debug in THUMB mode - from Thomas Koeller gthomas parents: 1084 diff changeset	666 THUMB_MODE(r9,10)
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	667 mov lr,pc
1307 1750695510ac Fix exception debug in THUMB mode - from Thomas Koeller gthomas parents: 1084 diff changeset	668 mov pc,r1
1750695510ac Fix exception debug in THUMB mode - from Thomas Koeller gthomas parents: 1084 diff changeset	669 #else
1750695510ac Fix exception debug in THUMB mode - from Thomas Koeller gthomas parents: 1084 diff changeset	670 THUMB_MODE(r9,10)
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	671 #endif
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	672
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	673 // call exception handler
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	674 mov r0,sp
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	675 bl exception_handler
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	676
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	677 #ifdef CYGHWR_HAL_ARM_DUMP_EXCEPTIONS
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	678 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	679 bl cyg_hal_report_exception_handler_returned
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	680 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	681
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	682 ARM_MODE(r1,10)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	683
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	684 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	685 // Return from exception
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	686 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	687 return_from_exception:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	688
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	689 ldr r0,[sp,#armreg_cpsr]
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	690
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	691 // return to supervisor mode is simple
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	692 and r1,r0,#CPSR_MODE_BITS
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	693 cmp r1,#CPSR_SUPERVISOR_MODE
1002 609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	694
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	695 #ifndef CYGOPT_HAL_ARM_PRESERVE_SVC_SPSR
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	696 msr spsr,r0
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	697 ldmeqfd sp,{r0-r14,pc}^
1002 609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	698 #else
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	699 // we must take care of not corrupting the current (svc)
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	700 // spsr which happens to be also the pre-exception spsr
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	701 bne 1f
1084 04b94baa3683 Fix CYGOPT_HAL_ARM_PRESERVE_SVC_SPSR handling msalter parents: 1002 diff changeset	702 tst r0, #CPSR_THUMB_ENABLE
04b94baa3683 Fix CYGOPT_HAL_ARM_PRESERVE_SVC_SPSR handling msalter parents: 1002 diff changeset	703
04b94baa3683 Fix CYGOPT_HAL_ARM_PRESERVE_SVC_SPSR handling msalter parents: 1002 diff changeset	704 // when returning to thumb/svc mode, there is no easy way to preserve
04b94baa3683 Fix CYGOPT_HAL_ARM_PRESERVE_SVC_SPSR handling msalter parents: 1002 diff changeset	705 // spsr. It is possible to do so, but would add a lot of instructions.
04b94baa3683 Fix CYGOPT_HAL_ARM_PRESERVE_SVC_SPSR handling msalter parents: 1002 diff changeset	706 // The purpose of CYGOPT_HAL_ARM_PRESERVE_SVC_SPSR is to allow stepping
04b94baa3683 Fix CYGOPT_HAL_ARM_PRESERVE_SVC_SPSR handling msalter parents: 1002 diff changeset	707 // through SWI exception handling code, so not preserving spsr in this
04b94baa3683 Fix CYGOPT_HAL_ARM_PRESERVE_SVC_SPSR handling msalter parents: 1002 diff changeset	708 // case should be okay.
04b94baa3683 Fix CYGOPT_HAL_ARM_PRESERVE_SVC_SPSR handling msalter parents: 1002 diff changeset	709 msrne spsr,r0
04b94baa3683 Fix CYGOPT_HAL_ARM_PRESERVE_SVC_SPSR handling msalter parents: 1002 diff changeset	710 ldmnefd sp,{r0-r14,pc}^
04b94baa3683 Fix CYGOPT_HAL_ARM_PRESERVE_SVC_SPSR handling msalter parents: 1002 diff changeset	711
04b94baa3683 Fix CYGOPT_HAL_ARM_PRESERVE_SVC_SPSR handling msalter parents: 1002 diff changeset	712 // we are returning to arm/svc mode thus we must restore the
1002 609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	713 // pre-exception cpsr before returning to interrupted code
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	714 msr cpsr, r0
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	715 ldmfd sp, {r0-r14, pc}
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	716 1:
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	717 // we are not returning to svc mode thus we can safely restore
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	718 // svc spsr
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	719 msr spsr, r0
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	720 #endif
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	721
1002 609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	722 #ifdef CYGOPT_HAL_ARM_WITH_USER_MODE
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	723 // are we returning to user mode ?
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	724 and r2, r1, #CPSR_MODE_BITS
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	725 cmp r2, #CPSR_USER_MODE
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	726 add r2, sp, #armreg_r8
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	727 bne 1f
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	728 ldmfd r2, {r8-r14}^ // restore user mode regs
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	729 nop
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	730 bal 2f
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	731 1:
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	732 #else
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	733 add r2, sp, #armreg_r8
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	734 #endif
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	735 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	736 // return to other non-user modes is a little trickier
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	737 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	738
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	739 // switch to pre-exception mode and restore r8-r14
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	740 mrs r1,cpsr
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	741 orr r0,r0,#CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE
316 e17d1cf55283 ARM exception handler fix msalter parents: 210 diff changeset	742 bic r0,r0,#CPSR_THUMB_ENABLE
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	743 msr cpsr,r0
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	744 ldmfd r2,{r8-r14}
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	745 msr cpsr, r1 // back to svc mode
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	746
1002 609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	747 2:
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	748 // move sp,lr and pc for final load
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	749 ldr r0,[sp,#armreg_svcsp]
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	750 str r0,[sp,#armreg_r8]
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	751 ldr r0,[sp,#armreg_svclr]
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	752 str r0,[sp,#armreg_r9]
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	753 ldr r0,[sp,#armreg_pc]
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	754 str r0,[sp,#armreg_r10]
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	755
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	756 // restore r0-r7,sp,lr and return from exception
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	757 ldmfd sp,{r0-r7,sp,lr,pc}^
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	758
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	759 #ifdef CYGHWR_HAL_ARM_DUMP_EXCEPTIONS
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	760 __dump_procs:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	761 .word 0 // placeholder for reset
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	762 .word cyg_hal_report_undefined_instruction
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	763 .word cyg_hal_report_software_interrupt
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	764 .word cyg_hal_report_abort_prefetch
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	765 .word cyg_hal_report_abort_data
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	766 .word 0 // reserved
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	767 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	768
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	769
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	770 // Handle device interrupts
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	771 // This is slightly more complicated than the other exception handlers because
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	772 // it needs to interface with the kernel (if present).
1002 609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	773 // Assumption: can get here from any mode, including user mode
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	774 // (spurious interrupt while standalone app. is running in user mode)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	775
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	776 .code 32
20 5f5102441818 Merge from eCos master repository on 1999-07-02-23:17:07-BST jlarmour parents: 16 diff changeset	777 FIQ:
3173 afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	778 #ifndef CYGOPT_HAL_ARM_FIQ_DISABLE
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	779 // If we are not disabling FIQs as part of eCos, these will be under
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	780 // user control. In theory the user should have installed their own
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	781 // FIQ VSR before enabling them and we should never come here. If
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	782 // we do there is nothing eCos itself can do because we are outside
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	783 // the scope of the system. The default action here, then, is to simply
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	784 // mask FIQs and return.
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	785 mrs r8,spsr // CPSR at time of interrupt
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	786 orr r8,r8,#CPSR_FIQ_DISABLE
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	787 msr spsr,r8
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	788 subs pc,lr,#4
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	789 #else
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	790 // We can get here from any non-user mode.
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	791 mrs r8,spsr // CPSR at time of interrupt
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	792 and r9,r8,#CPSR_MODE_BITS // isolate pre-interrupt mode
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	793 cmp r9,#CPSR_IRQ_MODE
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	794 bne 1f
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	795 // If FIQ interrupted IRQ mode, just return with FIQ disabled.
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	796 // The common interrupt handling takes care of the rest.
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	797 orr r8,r8,#CPSR_FIQ_DISABLE
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	798 msr spsr,r8
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	799 subs pc,lr,#4
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	800 1:
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	801 // If FIQ interrupted other non-user mode, switch to IRQ mode and
151 25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	802 // fall through to IRQ handler.
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	803 ldr sp,.__exception_stack // get good stack to save lr and spsr
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	804 stmdb sp,{r8,lr}
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	805 mov r8,#CPSR_IRQ_MODE\|CPSR_FIQ_DISABLE\|CPSR_IRQ_DISABLE
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	806 msr cpsr,r8 // switch to IRQ mode
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	807 ldr sp,.__exception_stack // get regs saved in FIQ mode
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	808 ldmdb sp,{sp,lr}
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	809 msr spsr,sp
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	810
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	811 // now it looks like we got an IRQ instead of an FIQ except that
25e238959bae Merge from eCos master repository on 2001-02-12-23:44:24-GMT jlarmour parents: 150 diff changeset	812 // FIQ is disabled so we don't recurse.
3173 afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	813 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	814 IRQ:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	815 // Note: I use this exception stack while saving the context because
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	816 // the current SP does not seem to be always valid in this CPU mode.
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	817 ldr sp,.__exception_stack // get good stack
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	818 stmfd sp!,{r0-r5} // save some supervisor regs
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	819 sub r0,lr,#4 // PC at time of interrupt
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	820 mrs r1,spsr
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	821 mov r2,#CYGNUM_HAL_VECTOR_IRQ
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	822 mov r3,sp
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	823
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	824 mrs r4,cpsr // switch to Supervisor Mode
3173 afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	825
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	826 #ifdef CYGOPT_HAL_ARM_FIQ_DISABLE
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	827 // Due to a small chance of contention with FIQ,
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	828 // we should disable FIQ while still in IRQ mode and then
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	829 // change to SVC mode. This only applies when eCos is masking
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	830 // FIQ alongside IRQ, otherwise FIQs are outside eCos' control
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	831 // and the FIQ to IRQ translation doesn't happen.
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	832 orr r4,r4,#CPSR_FIQ_DISABLE
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	833 msr cpsr,r4
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	834 #endif
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	835
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	836 bic r4,r4,#CPSR_MODE_BITS
2126 0141a9e24d21 * src/vectors.S: disable FIQ in IRQ handler to fix race condition asl parents: 1851 diff changeset	837 // When handling an IRQ we must disable FIQ unless the current
0141a9e24d21 * src/vectors.S: disable FIQ in IRQ handler to fix race condition asl parents: 1851 diff changeset	838 // mode in CPSR is IRQ. If we were to get a FIQ while in another
0141a9e24d21 * src/vectors.S: disable FIQ in IRQ handler to fix race condition asl parents: 1851 diff changeset	839 // mode, the FIQ handling code would transform the FIQ into an
0141a9e24d21 * src/vectors.S: disable FIQ in IRQ handler to fix race condition asl parents: 1851 diff changeset	840 // IRQ and call the non-reentrant IRQ handler again. As a result,
0141a9e24d21 * src/vectors.S: disable FIQ in IRQ handler to fix race condition asl parents: 1851 diff changeset	841 // for example, the stack pointer would be set to the beginning
0141a9e24d21 * src/vectors.S: disable FIQ in IRQ handler to fix race condition asl parents: 1851 diff changeset	842 // of the exception_stack clobbering the registers we have just
0141a9e24d21 * src/vectors.S: disable FIQ in IRQ handler to fix race condition asl parents: 1851 diff changeset	843 // saved.
3173 afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	844 // However, if we are allowing the user to handle their own
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	845 // FIQs, we don't need to do that, since FIQ will not be
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	846 // translated to IRQ.
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	847 orr r4,r4,#CPSR_SUPERVISOR_MODE\|CPSR_INTR_MASK
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	848 msr cpsr,r4
20 5f5102441818 Merge from eCos master repository on 1999-07-02-23:17:07-BST jlarmour parents: 16 diff changeset	849
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	850 mov r5,sp // save original svc sp
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	851 mov r4,lr // save original svc lr
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	852 stmfd sp!,{r0-r2,r4,r5} // push svc_sp, svc_lr, vector, psr, pc
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	853
1002 609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	854 #ifdef CYGOPT_HAL_ARM_WITH_USER_MODE
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	855 // did exception occur in user mode ?
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	856 and r2, r1, #CPSR_MODE_BITS
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	857 cmp r2, #CPSR_USER_MODE
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	858 bne 1f
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	859 stmfd sp, {r8-r12, sp, lr}^ // get user mode regs
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	860 nop
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	861 sub sp, sp, #4*7
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	862 bal 2f
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	863 1:
609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	864 #endif
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	865 // switch to pre-exception mode to get banked regs
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	866 mov r0,sp // r0 survives mode switch
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	867 mrs r2,cpsr // Save current psr for return
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	868 orr r1,r1,#CPSR_IRQ_DISABLE\|CPSR_FIQ_DISABLE
316 e17d1cf55283 ARM exception handler fix msalter parents: 210 diff changeset	869 bic r1,r1,#CPSR_THUMB_ENABLE
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	870 msr cpsr,r1
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	871 stmfd r0!,{r8-r12,sp,lr}
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	872 msr cpsr,r2 // back to svc mode
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	873 mov sp,r0 // update stack pointer
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	874
1002 609c8b1447ee HAL enhancements from Pierre Habraken msalter parents: 982 diff changeset	875 2:
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	876 // now save pre-exception r0-r7 on current stack
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	877 ldmfd r3,{r0-r5}
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	878 stmfd sp!,{r0-r7}
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	879
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	880 // sp needs fixing if exception occured in SVC mode.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	881 ldr r1,[sp,#armreg_cpsr]
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	882 and r1,r1,#CPSR_MODE_BITS
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	883 cmp r1,#CPSR_SUPERVISOR_MODE
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	884 ldreq r1,[sp,#armreg_svcsp]
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	885 streq r1,[sp,#armreg_sp]
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	886
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	887 mov v6,sp // Save pointer to register frame
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	888
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	889 // mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	890 // bl _show_frame_in
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	891
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	892 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	893 // Switch to interrupt stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	894 ldr r2,.irq_level // current number of nested interrupts
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	895 ldr r0,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	896 add r1,r0,#1
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	897 str r1,[r2] // if was zero, switch stacks
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	898 cmp r0,#0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	899 moveq r1,sp // save old stack pointer
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	900 ldreq sp,.__interrupt_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	901 stmeqfd sp!,{r1}
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	902 10:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	903 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	904
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	905 // The entire CPU state is now stashed on the stack,
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	906 // increment the scheduler lock and handle the interrupt
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	907
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	908 #ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	909 .extern cyg_scheduler_sched_lock
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	910 ldr r3,.cyg_scheduler_sched_lock
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	911 ldr r4,[r3]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	912 add r4,r4,#1
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	913 str r4,[r3]
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	914 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	915
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	916 THUMB_MODE(r3,10)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	917
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	918 mov r0,v6
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	919 bl hal_IRQ_handler // determine interrupt source
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	920 mov v1,r0 // returned vector #
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	921
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	922 #if defined(CYGPKG_KERNEL_INSTRUMENT) && \
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	923 defined(CYGDBG_KERNEL_INSTRUMENT_INTR)
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	924 ldr r0,=RAISE_INTR // arg0 = type = INTR,RAISE
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	925 mov r1,v1 // arg1 = vector
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	926 mov r2,#0 // arg2 = 0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	927 bl cyg_instrument // call instrument function
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	928 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	929
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	930 ARM_MODE(r0,10)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	931
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	932 mov r0,v1 // vector #
103 95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	933
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	934 #if defined(CYGDBG_HAL_DEBUG_GDB_CTRLC_SUPPORT) \
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	935 \|\| defined(CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT)
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	936 // If we are supporting Ctrl-C interrupts from GDB, we must squirrel
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	937 // away a pointer to the save interrupt state here so that we can
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	938 // plant a breakpoint at some later time.
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	939
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	940 .extern hal_saved_interrupt_state
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	941 ldr r2,=hal_saved_interrupt_state
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	942 str v6,[r2]
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	943 #endif
95f3e12a6327 Merge from eCos master repository on 2000-06-23-16:41:10-BST jlarmour parents: 96 diff changeset	944
152 f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	945 cmp r0,#CYGNUM_HAL_INTERRUPT_NONE // spurious interrupt
f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	946 bne 10f
1334 8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	947
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	948 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_IGNORE_SPURIOUS
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	949 // Acknowledge the interrupt
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	950 THUMB_CALL(r1,12,hal_interrupt_acknowledge)
8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	951 #else
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 160 diff changeset	952 mov r0,v6 // register frame
1334 8758da1a0278 2003-10-23 Thomas Koeller <thomas.koeller@baslerweb.com> nickg parents: 1307 diff changeset	953 THUMB_CALL(r1,12,hal_spurious_IRQ)
152 f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	954 #endif // CYGIMP_HAL_COMMON_INTERRUPTS_IGNORE_SPURIOUS
f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	955 b spurious_IRQ
f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	956
f935b880e96c Merge from eCos master repository on 2001-02-14-01:27:14-GMT jlarmour parents: 151 diff changeset	957 10: ldr r1,.hal_interrupt_data
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	958 ldr r1,[r1,v1,lsl #2] // handler data
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	959 ldr r2,.hal_interrupt_handlers
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	960 ldr v3,[r2,v1,lsl #2] // handler (indexed by vector #)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	961 mov r2,v6 // register frame (this is necessary
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	962 // for the ISR too, for ^C detection)
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	963
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	964 #ifdef __thumb__
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	965 ldr lr,=10f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	966 bx v3 // invoke handler (thumb mode)
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	967 .pool
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	968 .code 16
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	969 .thumb_func
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	970 IRQ_10T:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	971 10: ldr r2,=15f
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	972 bx r2 // switch back to ARM mode
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	973 .pool
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	974 .code 32
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	975 15:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	976 IRQ_15A:
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	977 #else
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	978 mov lr,pc // invoke handler (call indirect
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	979 mov pc,v3 // thru v3)
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	980 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	981
38 e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	982 spurious_IRQ:
e7ba79f6d3a8 Merge from eCos master repository on 1999-09-23-20:10:25-BST jlarmour parents: 36 diff changeset	983
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	984 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	985 // If we are returning from the last nested interrupt, move back
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	986 // to the thread stack. interrupt_end() must be called on the
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	987 // thread stack since it potentially causes a context switch.
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	988 ldr r2,.irq_level
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	989 ldr r3,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	990 subs r1,r3,#1
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	991 str r1,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	992 ldreq sp,[sp] // This should be the saved stack pointer
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	993 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	994 // The return value from the handler (in r0) will indicate whether a
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	995 // DSR is to be posted. Pass this together with a pointer to the
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	996 // interrupt object we have just used to the interrupt tidy up routine.
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	997
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 160 diff changeset	998 // don't run this for spurious interrupts!
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 160 diff changeset	999 cmp v1,#CYGNUM_HAL_INTERRUPT_NONE
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 160 diff changeset	1000 beq 17f
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1001 ldr r1,.hal_interrupt_objects
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1002 ldr r1,[r1,v1,lsl #2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1003 mov r2,v6 // register frame
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1004
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1005 THUMB_MODE(r3,10)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1006
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1007 bl interrupt_end // post any bottom layer handler
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1008 // threads and call scheduler
161 ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 160 diff changeset	1009 ARM_MODE(r1,10)
ac086aa3217e Merge from eCos master repository on 2001-06-08-21:11:51-BST jlarmour parents: 160 diff changeset	1010 17:
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1011
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1012 // mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1013 // bl show_frame_out
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	1014
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	1015 // return from IRQ is same as return from exception
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	1016 b return_from_exception
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1017
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1018 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1019 // Execute pending DSRs the interrupt stack
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1020 // Note: this can only be called from code running on a thread stack
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1021 FUNC_START_ARM(hal_interrupt_stack_call_pending_DSRs, r1)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1022 stmfd sp!,{r4,r5,lr}
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1023 // Disable interrupts
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1024 mrs r4,cpsr // disable IRQ's
3173 afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1025 orr r2,r4,#CPSR_INTR_MASK
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1026 bic r5,r4,#CPSR_INTR_MASK
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1027 msr cpsr,r2
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1028 // Switch to interrupt stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1029 mov r3,sp // save old stack pointer
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1030 ldr sp,.__interrupt_stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1031 stmfd sp!,{r3} // stored at top of interrupt stack
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1032 ldr r2,.irq_level // current number of nested interrupts
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1033 ldr r3,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1034 add r3,r3,#1 // bump nesting level
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1035 str r3,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1036 msr cpsr,r5 // enable interrupts
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1037
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1038 THUMB_MODE(r1,20)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1039
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1040 bl cyg_interrupt_call_pending_DSRs
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1041
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1042
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1043 ARM_MODE(r1,22)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1044
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1045 // Disable interrupts
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1046 mrs r1,cpsr // disable IRQ's
3173 afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1047 orr r2,r1,#CPSR_INTR_MASK
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1048 msr cpsr,r2
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1049
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1050 // Move back to the thread stack.
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1051 ldr r2,.irq_level
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1052 ldr r3,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1053 sub r3,r3,#1 // decrement nesting level
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1054 str r3,[r2]
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1055 ldr sp,[sp] // This should be the saved stack pointer
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1056 msr cpsr,r4 // restore interrupts to original state
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1057
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1058 #ifdef __thumb__
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1059 ldmfd sp!,{r4,r5,lr} // return
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1060 bx lr
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1061 #else
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1062 ldmfd sp!,{r4,r5,pc} // return
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1063 #endif // __thumb__
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1064 #endif // CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
14 01ce82f3e11a Merge from eCos master repository on 1999-06-11-17:05:41-BST jlarmour parents: 10 diff changeset	1065
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1066 // Thumb-only support functions
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1067 #ifdef __thumb__
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1068
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1069 FUNC_START_ARM(hal_disable_interrupts, r1)
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1070 mrs r0,cpsr // current state
3173 afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1071 orr r1,r0,#CPSR_INTR_MASK // mask interrupts
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1072 msr cpsr,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1073 bx lr // exit, _old_ in r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1074
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1075 FUNC_START_ARM(hal_enable_interrupts, r1)
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1076 mrs r0,cpsr // current state
3173 afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1077 bic r1,r0,#CPSR_INTR_MASK // mask interrupts
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1078 msr cpsr,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1079 bx lr // exit
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1080
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1081 FUNC_START_ARM(hal_restore_interrupts, r1)
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1082 mrs r1,cpsr // current state
3173 afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1083 bic r1,r1,#CPSR_INTR_MASK // mask out interrupts
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1084 and r0,r0,#CPSR_INTR_MASK // keep only interrupts
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1085 orr r1,r1,r0 // mask interrupts
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1086 msr cpsr,r1
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1087 bx lr // exit
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1088
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1089 FUNC_START_ARM(hal_query_interrupts, r1)
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1090 mrs r0,cpsr // current state
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1091 bx lr // exit, state in r0
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1092
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1093 #endif // __thumb__
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1094
3173 afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1095 #ifndef CYGOPT_HAL_ARM_FIQ_DISABLE
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1096
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1097 // Functions for controlling FIQ independently of IRQ.
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1098 // These are only present if we are not manipulating FIQs
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1099 // alongside IRQs in the standard interrupt control macros.
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1100
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1101 FUNC_START_ARM(hal_disable_FIQ, r1)
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1102 mrs r0,cpsr // current state
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1103 orr r1,r0,#CPSR_FIQ_DISABLE // mask FIQs
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1104 msr cpsr,r1
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1105 bx lr // exit, _old_ in r0
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1106
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1107 FUNC_START_ARM(hal_enable_FIQ, r1)
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1108 mrs r0,cpsr // current state
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1109 bic r1,r0,#CPSR_FIQ_DISABLE // mask FIQs
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1110 msr cpsr,r1
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1111 bx lr // exit
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1112
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1113 FUNC_START_ARM(hal_restore_FIQ, r1)
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1114 mrs r1,cpsr // current state
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1115 bic r1,r1,#CPSR_FIQ_DISABLE // mask out FIQs
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1116 and r0,r0,#CPSR_FIQ_DISABLE // keep only FIQs
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1117 orr r1,r1,r0 // mask FIQs
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1118 msr cpsr,r1
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1119 bx lr // exit
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1120
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1121 FUNC_START_ARM(hal_query_FIQ, r1)
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1122 mrs r0,cpsr // current state
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1123 bx lr // exit, state in r0
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1124
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1125 #endif
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1126
34 29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST jlarmour parents: 28 diff changeset	1127 // Dummy/support functions
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1128
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1129 .global __gccmain
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1130 .global _psr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1131 .global _sp
34 29bc183297e1 Merge from eCos master repository on 1999-09-02-16:26:10-BST jlarmour parents: 28 diff changeset	1132
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1133 #ifdef __thumb__
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1134 .code 16
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1135 .thumb_func
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1136 __gccmain:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1137 bx lr
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1138
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1139 .code 16
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1140 .thumb_func
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1141 _psr:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1142 ARM_MODE(r1,10)
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1143 mrs r0,cpsr
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1144 bx lr
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1145
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1146 .code 16
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1147 .thumb_func
435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1148 _sp:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1149 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1150 bx lr
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1151 #else
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1152 __gccmain:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1153 mov pc,lr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1154
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1155 _psr:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1156 mrs r0,cpsr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1157 mov pc,lr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1158
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1159 _sp:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1160 mov r0,sp
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1161 mov pc,lr
76 435cced73e2f eCos v1.3.1 merged from eCos master repository on 2000-03-27-23:22:51-BST jlarmour parents: 70 diff changeset	1162 #endif
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1163
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1164
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1165 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1166 // Pointers to various objects.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1167 //
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1168 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1169 PTR(__GDB_stack_base)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1170 PTR(__GDB_stack)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1171 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1172 PTR(__startup_stack)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1173 PTR(__exception_stack)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1174 PTR(__undef_exception_stack)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1175 PTR(__bss_start)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1176 PTR(__bss_end)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1177 PTR(_end)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1178 PTR(__rom_data_start)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1179 PTR(__ram_data_start)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1180 PTR(__ram_data_end)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1181 PTR(hal_interrupt_handlers)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1182 PTR(hal_interrupt_data)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1183 PTR(hal_interrupt_objects)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1184 PTR(__exception_handlers)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1185 PTR(init_flag)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1186 #ifdef CYGFUN_HAL_COMMON_KERNEL_SUPPORT
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1187 PTR(cyg_scheduler_sched_lock)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1188 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1189 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1190 PTR(irq_level)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1191 PTR(__interrupt_stack)
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1192 #endif
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	1193 #ifdef CYGHWR_HAL_ARM_DUMP_EXCEPTIONS
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	1194 PTR(__dump_procs)
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 172 diff changeset	1195 #endif
3173 afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1196 #ifndef CYGOPT_HAL_ARM_FIQ_DISABLE
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1197 PTR(__fiq_stack)
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1198 #endif
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	1199 //
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	1200 // Identification - useful to find out when a system was configured
d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	1201 _eCos_id:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1202 .asciz "eCos : " __DATE__
10 d3fbcdfa1b2f Merge from eCos master repository on 1999-05-29-00:13:11-BST jlarmour parents: 8 diff changeset	1203
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1204
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1205 // -------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1206 // Interrupt vector tables.
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1207 // These tables contain the isr, data and object pointers used to deliver
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1208 // interrupts to user code.
24 306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	1209
306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	1210 // Despite appearances, their sizes are not #defines, but .equ symbols
306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	1211 // generated by magic without proper dependencies in arm.inc
306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	1212 // Recompiling will not DTRT without manual intervention.
306eee292492 Merge from eCos master repository on 1999-07-16-05:47:06-BST jlarmour parents: 20 diff changeset	1213
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1214 .data
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1215
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1216 init_flag:
150 f0e3fb000de8 Merge from eCos master repository on 2001-01-26-06:43:02-GMT jlarmour parents: 148 diff changeset	1217 .balign 4
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1218 .long 0
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1219
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1220 .extern hal_default_isr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1221
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1222 .globl hal_interrupt_handlers
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1223 hal_interrupt_handlers:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1224 .rept CYGNUM_HAL_ISR_COUNT
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1225 .long hal_default_isr
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1226 .endr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1227
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1228 .globl hal_interrupt_data
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1229 hal_interrupt_data:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1230 .rept CYGNUM_HAL_ISR_COUNT
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1231 .long 0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1232 .endr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1233
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1234 .globl hal_interrupt_objects
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1235 hal_interrupt_objects:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1236 .rept CYGNUM_HAL_ISR_COUNT
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1237 .long 0
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1238 .endr
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1239
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1240 // -------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1241 // Temporary interrupt stack
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1242
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1243 .section ".bss"
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1244
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1245 // Small stacks, only used for saving information between CPU modes
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1246 __exception_stack_base:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1247 .rept 32
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1248 .long 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1249 .endr
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1250 __exception_stack:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1251 .rept 32
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1252 .long 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1253 .endr
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1254 __undef_exception_stack:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1255
3173 afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1256 #ifndef CYGOPT_HAL_ARM_FIQ_DISABLE
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1257 .balign 16
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1258 __fiq_stack_base:
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1259 .rept CYGNUM_HAL_ARM_FIQ_STACK_SIZE
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1260 .byte 0
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1261 .endr
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1262 .balign 16
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1263 __fiq_stack:
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1264 #endif
afb59e9b7339 * cdl/hal_arm.cdl: Add CDL to control whether both IRQs and FIQs nickg parents: 2800 diff changeset	1265
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1266 // Runtime stack used during all interrupt processing
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1267 #ifndef CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1268 #define CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE 4096
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1269 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1270 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1271 .balign 16
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1272 .global cyg_interrupt_stack_base
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	1273 cyg_interrupt_stack_base:
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1274 __interrupt_stack_base:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1275 .rept CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1276 .byte 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1277 .endr
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1278 .balign 16
2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1279 .global cyg_interrupt_stack
8 ece80412419a Merge from eCos master repository on 1999-05-21-22:05:54-BST jlarmour parents: 6 diff changeset	1280 cyg_interrupt_stack:
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1281 __interrupt_stack:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1282 irq_level:
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1283 .long 0
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1284 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1285
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1286 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1287 .balign 16
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1288 __GDB_stack_base:
156 b939e9cada46 Merge from eCos master repository on 2001-03-29-21:44:39-BST jlarmour parents: 154 diff changeset	1289 .rept CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE // rather than 1k
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1290 .byte 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1291 .endr
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1292 __GDB_stack:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1293 #endif
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1294 .balign 16
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1295 __startup_stack_base:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1296 #ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1297 .rept 512
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1298 #else
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1299 .rept CYGNUM_HAL_COMMON_INTERRUPTS_STACK_SIZE
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1300 #endif
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1301 .byte 0
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1302 .endr
80 2085233a121a Merge from eCos master repository on 2000-04-07-07:52:29-BST jlarmour parents: 76 diff changeset	1303 .balign 16
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1304 __startup_stack:
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1305
56 755351606154 Merge from eCos master repository on 1999-12-01-18:03:05-GMT jlarmour parents: 54 diff changeset	1306 #ifdef PLATFORM_EXTRAS
755351606154 Merge from eCos master repository on 1999-12-01-18:03:05-GMT jlarmour parents: 54 diff changeset	1307 #include PLATFORM_EXTRAS
755351606154 Merge from eCos master repository on 1999-12-01-18:03:05-GMT jlarmour parents: 54 diff changeset	1308 #endif
755351606154 Merge from eCos master repository on 1999-12-01-18:03:05-GMT jlarmour parents: 54 diff changeset	1309
2 443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1310 // --------------------------------------------------------------------------
443894e2e912 Block commit of eCos version 1.2.1 jlarmour parents: diff changeset	1311 // end of vectors.S

Mercurial > ecos

annotate packages/hal/arm/arch/current/src/vectors.S @ 3173:afb59e9b7339