changelog

开放源码实时操作系统源码.

	* src/vectors.S:
	Rename exception_handler -> cyg_hal_exception_handler

	* tests/intr0.c:
	Rename CYG_VECTOR_* -> CYGNUM_HAL_INTERRUPT_* due to hal_intr.h
	changes above

1999-02-17  Jesper Skov  <[e-mail]>

	* src/ppc_stub.c (__computeSignal): Moved special GDB signal
	handling to generic-stub.c.

1999-02-17  Jesper Skov  <[e-mail]>

	* src/hal_misc.c (hal_default_isr): Always print out vector number
	in hal_default_interrupt.

1999-02-16  Jesper Skov  <[e-mail]>

	* src/vectors.S: Changed set_debug_traps to initialize_stub.

	* src/ppc_stub.c: 
	* include/ppc_stub.h: 
	Cleaned up to only include arch specific stub code.

1999-02-05  Jesper Skov  <[e-mail]>

	* src/ppc_stub.c: 
	* src/hal_misc.c: 
	* src/hal_intr.c: 
	* src/vectors.S: 
	* include/ppc_regs.h: 
	* include/hal_intr.h: 
	* include/hal_cache.h: 
        Cleaned up the MPC823/850 code.

1999-02-05  Jesper Skov  <[e-mail]>

	* include/hal_intr.h (HAL_CLOCK_LATENCY): Return 0 when the result
	is due to a bogus timer interrupt.

1999-02-05  John Dallaway  <[e-mail]>

	* src/powerpc.ld: Add LMA_EQ_VMA macro definition.

1999-01-29  Jesper Skov  <[e-mail]>

	* src/hal_misc.c: 
	* src/ppc_stub.c: 
	* src/vectors.S: 
	* include/ppc_regs.h: 
	* include/hal_intr.h: 
	* include/hal_cache.h:
	Added MPC823/850 support. Some of it needs cleaning up a bit.

1999-01-22  Jesper Skov  <[e-mail]>
        PR 18879
	* include/quicc_smc.h:
	* src/quicc_smc.c:
	Fix compiler warnings.

1999-01-22  Jesper Skov  <[e-mail]>

	* include/quicc_smc.h:
	* src/ppc_860.h:
	* src/quicc_smc.c:
	Added UNSUPPORTED headers.

1999-01-21  Jonathan Larmour  <[e-mail]>

	* src/hal_misc.c (cyg_hal_invoke_constructors): 
	Add code to deal with CYGSEM_HAL_STOP_CONSTRUCTORS_ON_FLAG
	Tidy up and update description header
	Shorten needlessly long lines

	* src/vectors.S:
	Remove all traces of non-CYG_KERNEL_USE_INIT_PRIORITY code
	Tidy up and update description header
	Shorten needlessly long lines

1999-01-21  Jesper Skov  <[e-mail]>
        Merge with FADS branch.

        1998-12-17  Jesper Skov  <[e-mail]>

	* src/ppc_860.h: Added as private header.

	* src/PKGconf.mak (COMPILE): Added quicc_smc.c.

	* include/quicc_smc.h: Prefix exported names with cyg_.

	* src/quicc_smc.c: Use ppc_860.h as a private header.
	Made all but the necessary functions static. Prefixed the rest
	with cyg_.
	Moved the RS232 interface enabling here from hal_diag since it
	is apparently required by both hal_stub and hal_diag.

1999-01-20  Jesper Skov  <[e-mail]>

	* src/powerpc.ld (SECTION_bss): Added align statement.

1999-01-20  Jesper Skov  <[e-mail]>

	* src/vectors.S: Changed _STUB to _STUBS. 

1999-01-19  Jesper Skov  <[e-mail]>

	* src/vectors.S: 
	* src/hal_misc.c (hal_enable_caches):
	Also support HAL_STARTUP_STUB.
	
1999-01-15  Jesper Skov  <[e-mail]>

	* src/hal_misc.c:
	* src/hal_intr.c: 
	Move external declarations out of functions.

1999-01-14  Jesper Skov  <[e-mail]>

	* src/vectors.S (_start): Copy data to RAM before calling C
	functions (or "don't initialize the MMU with random data").

	* src/hal_misc.c: ROM is cache inhibited.

1999-01-13  Gary Thomas  <[e-mail]>

	* include/basetype.h: CYG_DOUBLE_BYTEORDER now in <infra/cyg_type.h>

1999-01-12  Gary Thomas  <[e-mail]>

	* include/basetype.h (CYG_DOUBLE_BYTEORDER): Define ordering
	for words within double.

1999-01-11  Jesper Skov  <[e-mail]>

	* include/hal_io.h: Fixed indentation.

1999-01-05  Jesper Skov  <[e-mail]>

	* include/hal_intr.h (HAL_CLOCK_RESET): Undid below change;
	doesn't always work.

1998-12-15  Jesper Skov  <[e-mail]>

	* include/hal_intr.h (HAL_CLOCK_RESET): Add rather than store to
	avoid wall-clock drift.

1998-12-11  Jesper Skov  <[e-mail]>

	* src/vectors.S: Cleaned up code to use r14/r15 during
	interrupt/exception handling, which is necessary to support
	-msdata.
	Put hal tables in sdata section when smaller than threshold.
	
1998-12-11  Jesper Skov  <[e-mail]>

	* include/hal_cache.h: Defined three more macros.

1998-12-10  Jesper Skov  <[e-mail]>

	* include/hal_cache.h: Defined three more macros.

1998-12-10  Jesper Skov  <[e-mail]>

	* src/vectors.S: Make the program exception jump to ROM if no GDB
	stub was configured.

1998-12-10  Jesper Skov  <[e-mail]>

	* include/hal_cache.h: Added HAL_ICACHE_UNLOCK_ALL and
	HAL_DCACHE_UNLOCK_ALL for sim (unused).

1998-12-10  Jesper Skov  <[e-mail]>

	* include/hal_cache.h: Defined cache locking macros. Changed
	invalidate macros not to unlock.

	* include/ppc_regs.h: Added some instruction cache definitions.

	* src/hal_misc.c (hal_enable_caches): Unlock caches before
	invalidating.

1998-12-09  Jesper Skov  <[e-mail]>

	* src/hal_misc.c (hal_enable_caches): Don't enable caches when
	configured for ROM.

1998-12-09  Jesper Skov  <[e-mail]>

	* include/ppc_regs.h: TBx_W are SPR registers.

	* src/vectors.S (_init_CPU, _start): Added a few sync instructions.

1998-12-08  Jesper Skov  <[e-mail]>

	* include/ppc_regs.h (CYGARC_REG_IMM_OR_CSNT): Fixed typo.

1998-12-08  Jesper Skov  <[e-mail]>

	* include/ppc_regs.h: Added more definitions.

1998-12-07  Jesper Skov  <[e-mail]>

	* src/vectors.S (_init_CPU): Proper solution to the problem of
	MMU/cache initialization.

1998-12-07  Jesper Skov  <[e-mail]>

	* src/vectors.S (_start): Map RAM before accessing it. Only
	disable MMU just before (re)programming it.

1998-12-04  Jesper Skov  <[e-mail]>

	* src/hal_intr.c:
	* src/hal_intr.cxx:
	* src/PKGconf.mak:
	Renamed hal_intr.cxx to hal_intr.c.
	
1998-12-04  Jesper Skov  <[e-mail]>

	* tests/intr0.c: Improved somewhat. Also fixes PR 18440.

	* src/hal_intr.cxx:
	* src/PKGconf.mak:
	Added hal_intr.cxx.

	* include/ppc_regs.h: More register definitions.

	* include/hal_intr.h: Handle decrementer in HAL_INTERRUPT_ mask
	and configure macros.
	Added declarations for interrupt arbiters.

1998-12-02  Jesper Skov  <[e-mail]>
        PR 18425

	* src/vectors.S:
	* include/ppc_regs.h:
	* include/hal_intr.h:
	Prefixed remaining definitions used by hal_intr.h.

	* include/hal_intr.h:
	Added more definitions. Fixed wrong TBx_R values.

1998-12-01  Jesper Skov  <[e-mail]>

	* tests/PKGconf.mak:
	* tests/intr0.c:
	First simple test of 860 specific interrupt handling.

	* src/vectors.S (__default_interrupt_vsr): Don't shift decoded
	vector number.

	* src/hal_misc.c (hal_clear_MMU): Added.
	(hal_MMU_init): Call hal_clear_MMU to ensure a sane MMU state.

	* include/ppc_regs.h: Added even more definitions.

	* include/hal_intr.h: Fixed interrupt functions to deal with
	interleaved IRQ/LVL vectors.

1998-11-30  Jesper Skov  <[e-mail]>

	* src/vectors.S (__default_interrupt_vsr): Always call
	cyg_hal_gdb_isr when GDB_BREAK support is enabled.
	Added comment about nesting.

1998-11-30  Jesper Skov  <[e-mail]>

	* include/ppc_regs.h: Added a few more definitions.

	* src/vectors.S (decode_interrupt): Added 1st level arbitration
	for MPC860.

	* include/hal_intr.h: Added (properly ordered) LVL vectors.
	Changed if/else to switch/case.
	Added configuration of priorities/level.

1998-11-30  Jesper Skov  <[e-mail]>

	* src/vectors.S (decode_interrupt): Update the vector in the state
	frame.

1998-11-27  Jesper Skov  <[e-mail]>

	* include/ppc_regs.h: Added more 860 IMM registers.

	* include/hal_io.h: Changed HAL_IO_BARRIER so it can be used from
	C++.

	* include/hal_intr.h: First part of 860 interrupt controller
	support.

	* src/vectors.S: 
	* include/hal_intr.h:
	Exchanged extern and decrementer interrupt ISR vectors to allow
	more sensible extension.
	
1998-11-27  Jesper Skov  <[e-mail]>

	* src/hal_misc.c: The memory map descriptor table is now weakly
	defined so applications can override it.

1998-11-26  Jesper Skov  <[e-mail]>

	* include/ppc_regs.h: 
	* src/hal_misc.c (hal_map_memory):
	Added handling of Guarded attribute.

1998-11-26  Jesper Skov  <[e-mail]>

	* include/hal_arch.h: Added definition for magic constant.

1998-11-26  Jesper Skov  <[e-mail]>

	* src/vectors.S: 
	* include/hal_arch.h: 
	* include/ppc.inc:
	Moved SPR definitions to ppc_regs.h.
	
1998-11-26  Jesper Skov  <[e-mail]>

	* src/vectors.S: 
	* src/ppc_stub.c: 
	* src/hal_misc.c: 
	Changes due to ppc_regs.h cleanup.

	* src/ppc_stub.h: Added convenience definition for SP register.

	* include/ppc_regs.h: Got rid of GDB register definitions.
	Cleaned up a bit.

	* include/ppc_regs.h: 
	* include/hal_cache.h: 
	Prefixed register names with CYGARC_REG_ to avoid name space
	pollution.

	* include/hal_arch.h: 
	* src/context.S: 
	Replaced magic constants in jmpbuf with defines.

1998-11-25  Jesper Skov  <[e-mail]>

	* src/vectors.S (__start): Got rid of a few magic constants.

	* include/hal_intr.h (HAL_CLOCK_INITIALIZE,
	HAL_CLOCK_RESET): Cleaned up a bit.

	* include/ppc_regs.h: Added DC_ADR_ and TBU/TBL macros.

	* include/hal_cache.h: Got rid of a few magic constants. 
	Changed types in cyg_memdesc_t. 
	* src/hal_misc.c (hal_map_memory): Changed argument types.

	* include/hal_arch.h: Changed a few comments.

1998-11-23  Jesper Skov  <[e-mail]>

	* src/vectors.S: Cleaned up CYG_MSR definition.

	* src/hal_misc.c (mem_map): Added mapping for SIM.
	(hal_map_memory): Added 603 BAT mapping.

	* include/ppc_regs.h: Added definitions for BATs.

1998-11-19  Jesper Skov  <[e-mail]>

	* include/ppc_regs.h: 
	* include/hal_cache.h: 
	Use operand constants to pass macro values to assembly code.

1998-11-18  Jesper Skov  <[e-mail]>

	* src/context.S: 
	* include/ppc.inc: 
	* include/hal_arch.h:
	Improved GDB thread info output by making a context switch frame
	look like an exception/interrupt frame.
	
1998-11-18  Gary Thomas  <[e-mail]>

	* include/hal_intr.h: Add support for interrupt latency
	measurements, controlled by CYGVAR_KERNEL_COUNTERS_CLOCK_LATENCY.

1998-11-18  Jesper Skov  <[e-mail]>

	* include/ppc.inc: Renamed CYG_HAL_POWERPC_MP860 to
	CYG_HAL_POWERPC_MPC860.

1998-11-17  Jesper Skov  <[e-mail]>

	* hal/powerpc/arch/current/include/hal_cache.h
	* hal/powerpc/arch/current/include/hal_intr.h
	* hal/powerpc/arch/current/include/ppc_regs.h
	* hal/powerpc/arch/current/src/hal_misc.c
	* hal/powerpc/arch/current/src/ppc_stub.c
	* hal/powerpc/arch/current/src/vectors.S
	Renamed CYG_HAL_POWERPC_MP860 to CYG_HAL_POWERPC_MPC860.

1998-11-16  Jesper Skov  <[e-mail]>

	* src/vectors.S:
	* include/hal_intr.h: 
	Added vector translation.

	* src/vectors.S: Use r14 instead of r15 in interrupt handler.

1998-11-09  Jesper Skov  <[e-mail]>

	* include/hal_cache.h: Added memory mapping structure.

	* src/hal_misc.c (hal_MMU_init): Cleaned up memory mapping.

1998-11-09  Jesper Skov  <[e-mail]>

	* src/hal_misc.c (hal_enable_caches): Also disable serialization.

	* include/ppc_regs.h: Added more register definitions.

1998-11-06  Jesper Skov  <[e-mail]>

	* src/vectors.S: Don't enable MMU when target is SIM. Caches are
	not used anyway, and there's a serious performance hit.
	(added comment).

1998-11-04  Jesper Skov  <[e-mail]>

	* include/hal_cache.h: Proper separation of SIM and MPC860 cache
	defines.

1998-11-04  Jesper Skov  <[e-mail]>

	* src/ppc_stub.c (cyg_hal_gdb_interrupt,
	cyg_hal_gdb_remove_break): Add cache flushes after fiddling with
	the program data.

	* src/vectors.S (__default_interrupt_vsr,
	__default_exception_vsr): Enable MMU on entry.

1998-11-04  Jesper Skov  <[e-mail]>

	* src/vectors.S: Make calls to MMU init function and cache
	enabling function. Enable MMU.

	* src/hal_misc.c (hal_map_memory, hal_MMU_init,
	hal_enable_caches): Added.

	* include/ppc_regs.h: Added MMU register definitions.

	* include/hal_cache.h: Enabled cache macros and made them work
	properly.