ecos/packages/hal/arm/arch/current ChangeLog c ...

[jlarmour at sourceware dot org]

CVSROOT:	/cvs/ecos
Module name:	ecos
Changes by:	jlarmour@sourceware.org	2008-11-11 04:28:46

Modified files:
	packages/hal/arm/arch/current: ChangeLog 
	packages/hal/arm/arch/current/cdl: hal_arm.cdl 
	packages/hal/arm/arch/current/include: hal_arch.h 
	packages/hal/arm/arch/current/src: arm.ld hal_misc.c 
	                                   hal_mk_defs.c vectors.S 

Log message:
	* src/arm.ld: Discard C++ EH-related sections when we can't
	possibly support C++ EH (no CYGPKG_LIBSTDCXX).
	
	* src/hal_mk_defs.c: Also export HAL_BREAKINST_THUMB and
	HAL_BREAKINST_ARM to asm.
	* src/arm.ld: Revise alignment yet further. Maintain ALIGN_LMA
	at original value, but define alignment for use in compliance
	with AAPCS. Expand explanatory comments.
	(SECTION_text): Comply with AAPCS alignment when inserting
	.ARM.extab and .ARM.exidx.
	
	* src/arm.ld: Rework alignment further to improve backward
	compatibility. Improve commenting on alignment issues.
	
	* src/arm.ld: We need to be double-word aligned sometimes, so align
	LMA the same way too.
	
	* cdl/hal_arm.cdl (CYGBLD_HAL_ARM_EABI): EABI has a different C++
	EH implementation, so don't let LIBSTDCXX use the default one.
	
	* src/vectors.S: Correctly conditionalise overwriting (or not)
	of reset vector.
	
	* src/hal_misc.c (CONSTRUCTORS_END): Fix fencepost error.
	
	* include/arm_stub.h: Remove CYG_HAL_GDB_ENTER_CRITICAL_IO_REGION
	and CYG_HAL_GDB_LEAVE_CRITICAL_IO_REGION defines which should remain
	as their defaults.
	* src/arm.ld: Add SECTION_hal_vsr_table for targets which need the
	VSR table in a different location to the rest of the fixed vectors.
	* src/vectors.S: Allow hal_platform_setup.h to define
	CYGHWR_HAL_ARM_SEPARATE_VSR_TABLE to allow move of hal_vsr_table
	to its own section at a different address.
	
	* src/hal_mk_defs.c (main): Export exception vector info
	to asm.
	* src/arm.ld: Remove previous EABI support and instead use a
	different approach incorporating into existing SECTION macros for
	better backward compatibility.
	* src/hal_misc.c (cyg_hal_invoke_constructors): Rewrite init_array
	support for EABI.
	There is now nothing copyrightable remaining from Chris Zimman's
	earlier work in this package.
	
	* cdl/hal_arm.cdl: Rename EABI option. Set default from
	toolchain prefix and flags. Rewrite description.
	* include/hal_arch.h: Rename exception vector addresses to
	names less likely to potentially clash with applications.
	* src/vectors.S: Update vector address names in line with
	hal_arch.h change. Rename CYGNUM_HAL_VECTOR_TABLE ->
	CYGHWR_HAL_VECTOR_TABLE_BASE.
	
	Some of the following changes were inspired by work from Chris
	Zimman. Further changes were also provided, but have not been
	included because either they are cosmetic (whitespace changes
	etc.) and thus will only make it more difficult to merge in future
	updates from public eCos code base in future, increase code size
	for those who don't need it, or break compatibility with public
	eCos.
	* cdl/hal_arm.cdl: Add EABI build option.
	* include/hal_arch.h: Add extra CPSR definitions, and exception
	vector addresses.
	* src/arm.ld: Add EABI support.
	* src/hal_misc.c: Add EABI constructor support.
	* src/vectors.S: Allow variant/processor/platform to specify
	alternate vector table base. Use pretty names from hal_arch.h
	for vector offset/addresses.