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

annotate packages/hal/arm/arch/current/src/vectors.S @ 3292:7f8e529b4d82 default tip

Fix FREESCALE_EDMA_NBYTES_MLOFFYES_MLOFF() so it works with negative offsets.

author	vae
date	Wed, 29 Apr 2015 23:31:48 +0000
parents	afb59e9b7339
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 @ 3292:7f8e529b4d82 default tip