2003-01-31  Mark Salter  <msalter@redhat.com>

	* src/hal_syscall.c (hal_syscall_handler): Let generic syscall code
	handle exit.

2002-04-15  Jonathan Larmour  <jlarmour@redhat.com>

	* src/hal_syscall.c (hal_syscall_handler): Add extra sig argument to
	__do_syscall.

2001-12-10  Richard Sandiford  <rsandifo@redhat.com>

	* src/vectors.S (save_state): Remove unnecessary DDR diddling when
	handling breaks.  Use BPCSR rather than BPCSR-4 as the break address.
	(restore_state): Take two new arguments: the register that the
	PC should be loaded into, and the argument to the rett instruction.
	(_break): If handling a break instruction, return to the following
	instruction using a normal "ret".  Ignore other kinds of break if
	they were triggered when traps were disabled; assume that an
	interrupt or exception handler has triggered a stack watchpoint
	accidentally.  Correct GP calculation.  Return using "rett #1"
	rather than "rett #0".

2001-11-28  Hugo Tyson  <hmt@redhat.com>

	* src/vectors.S (_vectors): if defined(CYGPKG_HAL_FRV_FRV400) &&
	defined(CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS), add macro break_VSR
	to create a VSR entry which leaps to _break; rearrange the
	initialization of the VSR table so that the counts are correct;
	use break_VSR in slot 255; define _break which calls break_handler()
	much akin to exception handler().	

	Note that there is no need to define CYGSEM_HAL_FRV_HW_DEBUG for
	the FRV_FRV400 target; while we do use Hardware Debug, we don't
	use *that* sort of hardware debug, specifically we do not use
	hardware single-step, because it breaks as soon as we exit debug
	mode, ie whilst we are still within the stub.  But vectors.S does
	the same tidy-up of machine state, conditioned on FVR400 instead.

2001-10-17  Gary Thomas  <gthomas@redhat.com>

	* src/frv_stub.c: Slight cleanup - only need |VLIW|+1 possible
	breakpoint locations.

2001-10-16  Gary Thomas  <gthomas@redhat.com>

	* src/vectors.S (_exception_return): Remove *bad* workaround code
	now that single step VLIW works properly.

	* src/frv_stub.c (__clear_single_step): 
	(__single_step): Restructure to support VLIW sequences.

2001-10-15  Gary Thomas  <gthomas@redhat.com>

	* include/hal_arch.h: Remove [bogus] CYG_HAL_TABLE macros since 
	the common ones work fine on this architecture.

	* src/vectors.S: 
	* src/frv_stub.c: 
	* cdl/hal_frv.cdl: Add CDL to describe various [hardware] debug
	options.

2001-10-01  Gary Thomas  <gthomas@redhat.com>

	* src/vectors.S: [FRV400] can't return from exception to a packed
	instruction - this yields illegal instruction.
	
2001-10-11  Gary Thomas  <gthomas@redhat.com>

	* cdl/hal_frv.cdl: 
	* include/basetype.h: 
	* include/hal_arch.h: 
	* include/hal_intr.h: 
	* include/frv_stub.h: 
	* include/hal_io.h: 
	* include/hal_cache.h: 
	* src/frv_stub.c: 
	* src/hal_mk_defs.c: 
	* src/frv.ld: 
	* src/hal_misc.c: 
	* src/vectors.S: 
	* src/context.S: 
	* src/hal_syscall.c: New port for FRV architecture.

//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//===========================================================================