changelog

eCos1.31版

2000-03-20  Jonathan Larmour  <[e-mail]>

	* src/vectors.S (__default_interrupt_vsr): Pass variant-specific PC
	offset from register context into cyg_hal_gdb_isr()

	* include/hal_arch.h: Move HAL_SavedRegisters into variant HALs

2000-03-19  Jonathan Larmour  <[e-mail]>

	* include/mn10300_stub.h: Make C++ safe

2000-02-16  Jesper Skov  <[e-mail]>

	* cdl/hal_mn10300.cdl: remove fix me.

1999-11-09  Jonathan Larmour  <[e-mail]>

	* include/hal_intr.h (HAL_RESTORE_INTERRUPTS): Ensure we restore the
	old state exactly, including "restoring" by disabling interrupts
	Requested by Matsushita in case 102544

1999-12-02  John Dallaway  <[e-mail]>

	* cdl/hal_mn10300.cdl:

	Use the <PACKAGE> token in custom rules.

1999-12-01  John Dallaway  <[e-mail]>

	* cdl/hal_mn10300.cdl:

	Use the <PREFIX> token in custom rules.

1999-11-04  John Dallaway  <[e-mail]>

	* cdl/hal_mn10300.cdl:

	Output custom rule dependency information to .deps files in
	the current directory.

	Dispense with the need to create a 'src' sub-directory.

1999-11-03  Jesper Skov  <[e-mail]>

	* cdl/hal_mn10300.cdl: Added.

1999-09-10  Jonathan Larmour  <[e-mail]>

	* include/hal_cache.h: Change CYG_HAL_MN10300_SIM to
	CYG_HAL_MN10300_AM31_SIM
	Only include var_cache.h when not sim

1999-08-18  Nick Garnett  <[e-mail]>

	* src/hal_misc.c (cyg_hal_exception_handler):
	Use CYGNUM_HAL_EXCEPTION_WATCHDOG rather than
	CYGNUM_HAL_INTERRUPT_WATCHDOG in test for watchdog exceptions.

1999-08-17  Nick Garnett  <[e-mail]>

	* include/arch.inc: Modified hal_cpu_int_merge to avoid corrupting
	any registers other than the one passed as an argument.

1999-08-16  Jonathan Larmour  <[e-mail]>

	* include/arch.inc: rename CYGPKG_HAL_MN10300_AM32_STDEVAL1 to
	CYGPKG_HAL_MN10300_AM31_STDEVAL1

1999-08-13  Nick Garnett  <[e-mail]>

	* include/arch.inc: Moved AM33 trace address to uncached memory
	window.

	* src/vectors.S (_start): Tidied away some superfluous trace
	code.
	
1999-08-12  Nick Garnett  <[e-mail]>

	Imported following changed from development branch.
	
    1999-08-11  Nick Garnett  <[e-mail]>	

	* src/vectors.S: Removed debug code.

	* include/hal_intr.h: Made mn10300_interrupt_control[] unsized
	since it is different sizes on different variants.

	* include/arch.inc:
	Changed hal_cpu_int_merge so that both the IE and IPL bits are
	changed across a thread switch.
	Some minor tweaks to trace code for AM32.

    1999-08-10  Jonathan Larmour  <[e-mail]>

	* include/pkgconf/hal_mn10300.h:
	Move CYGPKG_HAL_MN10300's "target mn10300" under the variant
	packages instead.
	Add CYGPKG_HAL_MN10300_VARIANTS

    1999-07-30  Nick Garnett  <[e-mail]>

	* src/hal_misc.c: Added default ISR.

	* src/vectors.S:
	Added Ctrl-C support. Extended VSR table to include new
	exceptions. Install default ISR by default.

	* src/mn10300_stub.c:
	Added asynchronous breakpoint support.
	[Later] Tidied up install_async_breakpoint() and fixed indirection
	bug.

	* include/hal_intr.h:
	Added default ISR. Removed HAL_INTERRUPT_CONFIGURE(), this is now
	variant-specific.

    1999-07-27  Nick Garnett  <[e-mail]>

	* src/vectors.S: 
	Some reorganization to make code more generic.
	Some diagnostic macros added.
	Note: some trace/debug code has been left in place temporarily,
	this will be removed eventually.

	* include/mn10300_stub.h: Added extra regnames for AM33.

	* include/hal_arch.h:
	Added macros to get and set extra registers for AM33.
	* include/arch.inc:
	Changed all *_MIPS_* to *_MN10300_*.
	Added some temporary trace/debug macros.

    1999-07-16  Nick Garnett  <[e-mail]>

	* src/hal_misc.c: 
	* include/hal_arch.h:
	Added hal_idle_thread_action();

	* include/arch.inc: Made hal_cpu_init definition optional.

    1999-07-08  Nick Garnett  <[e-mail]>

	* src/vectors.S: 
	Moved some code to variant specific macros. Now pass ISR register
	to cyg_hal_exception_handler() to enable further decoding.
	
	* src/hal_misc.c (cyg_hal_exception_handler):
	Added extra argument to pass ISR register value. Now decodes ISR
	value to specify extra exceptions.

    1999-07-07  Nick Garnett  <[e-mail]>

	* include/hal_intr.h:
	Added HAL_INTERRUPT_STACK_CALL_PENDING_DSRS() macro to support
	calling of DSRs on the interrupt stack.

	* include/hal_arch.h (HAL_THREAD_INIT_CONTEXT):
	Initialize the PSW to enable all interrupts on entry to thread.

	* include/arch.inc:
	Added implementations of CPU control macros.

	* src/context.S:
	Added code to preserve PSW across context switches.

	* src/vectors.S:
	Implemented mechanism to call DSRs on the interrupt stack.
	Refined condition for defining VSR table here.

    1999-06-30  Nick Garnett  <[e-mail]>

	* src/context.S: 
	* src/vectors.S:
	Use hal_cpu_save_all and hal_cpu_load_all macros to save and
	restore CPU register sets.

	* include/hal_arch.h:
	Modified HAL_THREAD_INIT_CONTEXT_EXTRA() to take some arguments.

    1999-06-29  Nick Garnett  <[e-mail]>

	* include/hal_arch.h:
	Added code in preparation for AM33 port.
	Added include of variant header.

	* include/hal_cache.h: 
	* include/hal_intr.h: 
	* src/vectors.S:
	* src/hal_misc.c: 
	Extensive changes to convert to new HAL organization. These mostly
	involve moving variant and platform specific stuff out to the
	appropriate headers in the variant and platform directories.

	* src/PKGconf.mak:
	* src/mn10300.ld (removed):
	Moved build of target.ld to variant directory.

	* include/arch.inc:
	Added this file to contain architecture specific macros.
	
1999-06-08  Jesper Skov  <[e-mail]>

	* src/hal_misc.c (cyg_hal_dcache_store): Only define for HW target.

1999-06-07  Jesper Skov  <[e-mail]>
        PR 20136
	* src/hal_misc.c (cyg_hal_dcache_store): 
	* include/hal_cache.h (HAL_DCACHE_STORE):
	DCACHE store operation needs 4 register variables. Put it in a
	separate function to ensure registers are availble.

1999-05-21  Hugo Tyson  <[e-mail]>

	* include/hal_intr.h: Define HAL_INTERRUPT_STACK_BASE and
	HAL_INTERRUPT_STACK_TOP so that stack usage macros in
	kernel/.../stackmon.hxx can work.

	* src/vectors.S (cyg_interrupt_stack_base): Define this symbol for
	the interrupt stack and its friend for the stack top so that we
	can publish them with nice names.

1999-05-13  Hugo Tyson  <[e-mail]>

	* include/hal_arch.h (HAL_THREAD_INIT_CONTEXT): Align stack
	(rather conservatively) before use.

1999-04-28  Bart Veer  <[e-mail]>

	* src/PKGconf.mak:
	Remove the -n argument to tail, it does not appear to be required
	on any supported host and causes problems with some
	implementations of tail.

1999-04-20  Jonathan Larmour  <[e-mail]>

	* include/hal_cache.h: 
	(HAL_DCACHE_IS_ENABLED) (HAL_ICACHE_IS_ENABLED): Add these new macros
	(HAL_DCACHE_DISABLE) (HAL_ICACHE_DISABLE): Make variables register
	variables
	Ensure the cache has finished its operation before exitting.
	(HAL_DCACHE_INVALIDATE_ALL) (HAL_ICACHE_INVALIDATE_ALL): Make
	variables register variables.
	Re-enable cache if it was enabled on entry.
	(HAL_DCACHE_WRITE_MODE): Make variables register variables.
	Re-enable data cache if it was enabled on entry.
	Ensure the cache has finished its operation before exitting.
	(HAL_DCACHE_STORE): Make variables register variables.
	Re-enable data cache if it was enabled on entry.

	These fix PR19887

1999-04-15  Jonathan Larmour  <[e-mail]>

	* src/mn10300.ld: Define __bss_end at the end of the BSS
	* src/vectors.S (_start): Use __bss_end rather than _end when clearing
	BSS
	These fix PR 19750

1999-04-15  Jonathan Larmour  <[e-mail]>

	* src/hal_misc.c:
	* src/vectors.S:
	Separate parts of cyg_hal_invoke_constructors() out into new functions
	cyg_hal_enable_caches() and cyg_hal_debug_init() so that
	cyg_hal_invoke_constructors() can be called again safely if
	necessary
	Fix for PR19642

1999-04-14  Jonathan Larmour  <[e-mail]>

	* src/PKGconf.mak (EXTRAS): Don't generate extras.o here any more
	But do define EXTRAS every time for the linker script.

1999-04-09  Jesper Skov  <[e-mail]>

	* src/mn10300_stub.c: 
	Moved get_register and put_register to hal_stub.c.

1999-04-08  John Dallaway  <[e-mail]>

	* src/*.ld: Revised SECTION_* macro arguments to
	avoid padded output sections (PR 19787)

1999-03-31  Nick Garnett  <[e-mail]>

	* include/hal_arch.h (HAL_THREAD_INIT_CONTEXT): Align initial SP
	to a 4 byte boundary. Fixes PR 19695.

	* include/hal_cache.h: Added include of hal.h and a test that a
	valid set of macros have been added.

1999-03-26  Gary Thomas  <[e-mail]>

	* include/hal_arch.h (CYGNUM_HAL_STACK_SIZE_MINIMUM): Be a little
	more generous since this stack should allow at least a kernel API
	call which could be at least 4 levels deep.

1999-03-23  Nick Garnett  <[e-mail]>

	* include/hal_arch.h:
	Modified stack size definitions to be more accurate.

1999-03-22  Jonathan Larmour  <[e-mail]>

	* include/mn10300_stub.h: Update copyright

	* src/mn10300_stub.c: Update copyright

1999-03-22  Hugo Tyson  <[e-mail]>

	* include/hal_arch.h: 
	Use CYGNUM_HAL_STACK_SIZE_TYPICAL for the stack size instead of
	CYGNUM_HAL_MINIMUM_STACK_SIZE.

1999-03-19  Nick Garnett  <[e-mail]>

	* src/hal_misc.c:
	* src/vectors.S:
	Fixed problem with taking breakpoints after watchdog interrupts
	and memory access exceptions. See the comments in
	__default_nmi_vsr in vector.S for details.

1999-03-17  John Dallaway  <[e-mail]>

	* src/PKGconf.mak: Remove dependence on echo '-e' switch.

1999-03-12  Gary Thomas  <[e-mail]>

	* include/hal_arch.h: Add definition of 'CYGNUM_HAL_MINIMUM_STACK_SIZE'

1999-03-10  Jesper Skov  <[e-mail]>

	* include/hal_intr.h (HAL_INTERRUPT_ATTACH): Added.

1999-03-08  Nick Garnett  <[e-mail]>

	* src/mn10300.ld:
	Added alignment before definition of __DEVTAB__.

1999-03-05  Gary Thomas  <[e-mail]>

	* src/PKGconf.mak: 
	* src/mn10300.ld: Clean up I/O package changes.

1999-03-04  Jonathan Larmour  <[e-mail]>

	* src/mn10300.ld: 
	Unconditionalize use of libextras.a and add to GROUP()

1999-02-25  Nick Garnett  <[e-mail]>

	* src/hal_misc.c:
	Now tests for whether the kernel is present before trying to use
	patch_dbg_syscalls().

	* include/hal_intr.h (HAL_INTERRUPT_CONFIGURE): fixed some compile
	bugs in this macro.

	* src/vectors.S:
	Changed label used to access scheduler lock to one that is not
	mangled by C++. This is intended to make support for interrupt
	handling in non-kernel configurations easier.

1999-02-20  Jonathan Larmour  <[e-mail]>

	* include/hal_arch.h: 
	Rename deliver_exception() -> cyg_hal_deliver_exception()
	QA improvements

	* include/hal_intr.h:
	Reorganise vector/interrupt/exception names according to purpose
	QA improvements

	* src/hal_misc.c:
	Rename deliver_exception() -> cyg_hal_deliver_exception()
	Rename CYG_VECTOR_* according to hal_intr.h changes above
	QA improvements

	* src/vectors.S: