changelog

ecos为实时嵌入式操作系统

	* 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.

1998-11-02  Jesper Skov  <[e-mail]>

	* include/ppc_stub.h: 
	* src/ppc_stub.c (cyg_hal_gdb_interrupt,
	cyg_hal_gdb_remove_break): New names for the new GDB BREAK support
	functions.

1998-11-02  Jesper Skov  <[e-mail]>

	* src/vectors.S (__default_interrupt_vsr): Fill r15 before doing
	cyg_hal_gdb_isr call, or it might be skipped.
	cyg_hal_gdb_isr now takes PC as first argument.

	* src/ppc_stub.c:
	* src/ppc_stub.h:
	Added proper GDB interrupt support.

1998-10-27  Jesper Skov  <[e-mail]>

	* src/vectors.S: Also save registers 13-15 in minimum context for
	convenience.

1998-10-25  Jesper Skov  <[e-mail]>

	* src/vectors.S: Removed pkgconf/kernel.h include fix-me.

1998-10-23  Jesper Skov  <[e-mail]>

	* include/ppc_stub.h: Include generic-stub.h from hal.

Fri Oct 23 04:47:11 1998  Jonathan Larmour  <[e-mail]>

	* include/hal_cache.h: 
	Include HAL configuration file to be sure we get all the right
	defines. This is a potential problem, that I had thought may be
	the cause of PR 17839, but that turned out to be a config tool
	problem
	
1998-10-16  Bart Veer  <[e-mail]>

	* src/vectors.S (__interrupt_stack):
	Made the interrupt stack size configurable.

1998-10-15  Jesper Skov  <[e-mail]>

	* src/ppc_stub.c (__computeSignal): Use SIGSYS for 'sc'
	exceptions.

1998-10-15  Jesper Skov  <[e-mail]>
        PR 17808

	* include/hal_arch.h (HAL_JMP_BUF_SIZE): Increased to 23.

	* src/context.S (hal_setjmp, hal_longjmp): Also save CR[2-4].

1998-10-15  Jesper Skov  <[e-mail]>

	* src/vectors.S: CYGDBG_KERNEL_DEBUG_GDB_INCLUDE_STUBS changed to
	CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS.

1998-10-15  Jesper Skov  <[e-mail]>

	* src/ppc_stub.c: Replaced include <signal.h> with SIGxxx
	definitions.

1998-10-15  Jesper Skov  <[e-mail]>

	* src/ppc_stub.c: Graceful error if attempted compiled for
	simulator. 
	Also do proper include of dbg-threads-api.h.

	* src/vectors.S: Changed CYG_HAL_GDB_BREAK to
	CYGDBG_HAL_DEBUG_GDB_BREAK_SUPPORT.

1998-10-15  Jesper Skov  <[e-mail]>

	* src/ppc_stub.c (single_step, clear_single_step): Disable
	interrupts when doing a single-step.

1998-10-14  Nick Garnett  <[e-mail]>

	* include/hal_io.h: 
	* src/ppc_stub.c: 
	* src/hal_misc.c:
	Minor modifications to permit building without kernel.

1998-10-14  Jesper Skov  <[e-mail]>

	* include/hal_intr.h (HAL_QUERY_INTERRUPTS): Fixed to do the right
	thing.

1998-10-13  Jesper Skov  <[e-mail]>

	* src/ppc_stub.c: 
	* src/hal_misc.c: 
	Added thread support. Primarily a change in the way registers are
	accessed.

 	* include/hal_arch.h (HAL_GET_GDB_REGISTERS,
	HAL_SET_GDB_REGISTERS): Added a few more registers.

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

	* Reverted below to avoid problems with test farm. Waiting for
	approval of other diffs.

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

	* src/ppc_stub.c: 
	* src/hal_misc.c: 
	Added thread support. Primarily a change in the way registers are
	accessed.

 	* include/hal_arch.h (HAL_GET_GDB_REGISTERS,
	HAL_SET_GDB_REGISTERS): Added a few more registers.

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

	* include/ppc_stub.h: Added CYGONCE protection.
	Fixed warning.

1998-10-09  Jesper Skov  <[e-mail]>

	* include/hal_intr.h: Added HAL_TRANSLATE_VECTOR.

1998-10-08  Jesper Skov  <[e-mail]>

	* src/vectors.S: Protect kernel.h inclusion by CYGPKG_KERNEL.

1998-10-08  Jesper Skov  <[e-mail]>

	* include/hal_arch.h
	* include/ppc_regs.h
	* src/hal_misc.c
	Changed /**/ comments to //.

1998-10-08  Jesper Skov  <[e-mail]>

	* src/makefile: Removed.

1998-10-08  Jesper Skov  <[e-mail]>

	* include/basetype.h:
	* include/hal_arch.h:
	* include/hal_cache.h:
	* include/hal_intr.h:
	* include/hal_io.h:
	* include/ppc_regs.h:
	* include/pkgconf/hal_powerpc.h:
	* src/context.S:
	* src/hal_misc.c:
	* src/vectors.S:
	Expanded TABs.

1998-10-08  Jesper Skov  <[e-mail]>

	* src/vectors.S: Added GDB interrupt support.
	Call GDB stub init at startup.

1998-10-08  Jesper Skov  <[e-mail]>

	* include/ppc_regs.h: Added defines for Internal Memory Map. Added
	CYGONCE protection.

1998-10-07  Jesper Skov  <[e-mail]>

	* include/hal_io.h: Enforce in-order IO.

1998-10-01  Jesper Skov  <[e-mail]>

	* src/vectors.S (_start): Comment change.

	* include/hal_intr.h: Added empty HAL_INTERRUPT_SET_LEVEL macro.

Thu Sep 17 17:40:01 1998  Jesper Skov  <[e-mail]>

	* src/vectors.S: Simulator does not support DER register.

1998-09-14  Bart Veer  <[e-mail]>

	* src/PKGconf.mak: 
	Made vectors.o dependent on the various files that can contain
	makefile variables or rules. This is needed after changes to
	pkgconf.tcl for PRs 17195 and 17286.

1998-09-12  Bart Veer  <[e-mail]>

	* include/pkgconf/hal_powerpc.h:
	Added missing descriptions (PR 17184)

	* src/hal_misc.c (exception_handler): 
	Sort out exception handling options (PR 16953)

Fri Sep  4 12:03:54 1998  Jesper Skov  <[e-mail]>

	* src/context.S: Always save/restore CR as the compiler may only
	do a partial restore.

Thu Sep  3 10:12:46 1998  Jesper Skov  <[e-mail]>

	* include/hal_cache.h: Replaced CACHE macros with dummies. The
	errata for the revision A.2 MPC860 is pretty grim wrt cache side
	effects.
	
	* include/hal_cache.h: 
	* include/hal_io.h: 
	* include/hal_arch.h: 
	* include/hal_intr.h:
 	Wrapped multi-line macros with CYG_MACRO_START/END.

1998-09-02  Bart Veer  <[e-mail]>

	* include/pkgconf/hal_powerpc.h:
	New header file for architecture-specific configuration options

	* tests/PKGconf.mak: 
	* src/PKGconf.mak: 
	Sort out package naming conventions.

1998-09-01  Nick Garnett  <[e-mail]>

	* include/hal_intr.h:
	Added CYG_VSR_COUNT, CYG_EXCEPTION_COUNT and CYG_ISR_COUNT.

Tue Sep  1 14:43:48 1998  Jesper Skov  <[e-mail]>

	* include/hal_cache.h (HAL_DCACHE_SYNC): Write data in the cache
	back to memory.
	(HAL_ICACHE_SYNC): Do nothing.

Tue Sep  1 10:26:10 1998  Jesper Skov  <[e-mail]>

	* src/hal_misc.c: Define empty __eabi to override compiler
	generated version of the same.

Mon Aug 31 16:32:34 1998  Jesper Skov  <[e-mail]>

	* src/hal_misc.c (cyg_hal_invoke_constructors): Renamed from
	__eabi.

Mon Aug 31 16:31:18 1998  Jesper Skov  <[e-mail]>

	* src/vectors.S (_start): Call C++ constructors.

Mon Aug 31 15:32:22 1998  Jesper Skov  <[e-mail]>

	* src/vectors.S (__default_interrupt_vsr): Added config options:
	CYGFUN_HAL_COMMON_KERNEL_SUPPORT and
	CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK.
	(restore_state): Moved from bottom of __default_exception_vsr to
	bottom of __default_interrupt_vsr.

Mon Aug 31 13:33:04 1998  Jesper Skov  <[e-mail]>

	* src/ppc_stub.c (__computeSignal): Added handling of MC860
	specific exceptions.
	Made VECTOR_PROGRAM decode actual exception type.

	* include/hal_intr.h: Defined MC860 specific vectors.

Mon Aug 31 10:12:44 1998  Jesper Skov  <[e-mail]>

	* src/hal_misc.c: 
	* src/vectors.S:
	Added ha_default_isr.

	* include/hal_cache.h:
	* include/ppc_regs.h:
	Defined HAL_DCACHE_x macros.

	* include/hal_arch.h:
	* src/hal_misc:
	Added hal_idle_thread_action.

1998-08-28  Bart Veer  <[e-mail]>

	* src/vectors.S, src/context.S, src/hal_misc.c, src/ppc_stub.c,
	include/hal_intr.h : 
	Updated for new kernel configuration option symbol names

Fri Aug 28 17:55:46 1998  Jesper Skov  <[e-mail]>

	* src/vectors.S: Added some more comments.
 	(_start): Disable 860 "Development Support" as it breaks PowerPC
	standard single-stepping exceptions.

	* src/ppc_stub.c: Handle single-step exceptions properly. Also
	enable exception-after-branch.

Fri Aug 28 17:41:34 1998  Jesper Skov  <[e-mail]>

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

	* include/hal_cache.h: Defined HAL_ICACHE_x macros.

	* include/hal_arch.h (HAL_BREAKINST): Use same opcode as GDB.

Fri Aug 28 10:11:06 1998  Jonathan Larmour  <[e-mail]>

	* src/vectors.S (_start): 
	Change call of main() to cyg_start(), and change comments
	accordingly. Definitely never call exit().

Thu Aug 27 15:30:27 1998  Jesper Skov  <[e-mail]>

	* include/ppc_stub.h (REGSIZE): Floats are 64 bit.

Thu Aug 27 13:58:16 1998  Jesper Skov  <[e-mail]>

	* src/hal_misc.c: Removed GDB C-C stuff again.

Wed Aug 26 16:05:53 1998  Jesper Skov  <[e-mail]>

	* src/hal_misc.c (hal_ctrlc_isr, hal_init_ctrlc_intr):
	Added GDB C-C support (temporary location).

Wed Aug 26 15:12:31 1998  Jesper Skov  <[e-mail]>

	* src/hal_misc.c (__eabi): Changed to match the constructor table
	generated by the linker script.

Wed Aug 26 09:38:07 1998  Jesper Skov  <[e-mail]>

	* include/hal_arch.h (HAL_GET_GDB_REGISTERS): Fixed typo.
	(HAL_SET_GDB_REGISTERS): Same.

1998-08-25  Nick Garnett  <[e-mail]>

	* src/vectors.S:
	Now pass pointer to saved registers as third argument to
	interrupt_end().

	* include/hal_arch.h:
	Added macros to support GDB.

Tue Aug 25 16:57:27 1998  Jesper Skov  <[e-mail]>

	* src/ppc_stub.c: Comment changes.

Tue Aug 25 11:11:49 1998  Jesper Skov  <[e-mail]>

	* include/hal_intr.h (HAL_INTERRUPT_ATTACH): Added cast to avoid
	compiler warning.

Tue Aug 25 11:08:00 1998  Jesper Skov  <[e-mail]>

	* include/hal_arch.h (HAL_REORDER_BARRIER): Added side effect to
 	"memory".

Mon Aug 24 13:15:07 1998  Jesper Skov  <[e-mail]>

	* include/ppc_stub.h: Corrected NUMREGS.

Mon Aug 24 11:14:08 1998  Jesper Skov  <[e-mail]>

	* src/vectors.S (__default_exception_vsr): Don't access register
	hid0.

Mon Aug 24 10:37:04 1998  Jesper Skov  <[e-mail]>

	* src/vectors.S (_start): Removed non-functional OCD control.

1998-08-21  Nick Garnett  <[e-mail]>

	* include/hal_cache.h:
	Now includes cyg_type.h rather than ktypes.h.	

Thu Aug 20 17:43:50 1998  Jesper Skov  <[e-mail]>

	* src/vectors.S: Disable OCD control to allow debugging of gdb
	 	stub.
		
	* src/vectors.S: Temporary stack definition.

Thu Aug 20 17:37:10 1998  Jesper Skov  <[e-mail]>

	* src/hal_misc.c: Added GDB stub support.

	* include/ppc.inc: Added some 860 register definitions.

	* include/hal_arch.h: Added breakpoint stuff.

Thu Aug 20 16:07:03 1998  Jesper Skov  <[e-mail]>

	* src/PKGconf.mak: Include GDB support files.

Thu Aug 20 16:00:21 1998  Jesper Skov  <[e-mail]>

	* include/ppc_stub.h:
	* include/ppc_regs.h:
	* src/ppc_stub.c:
	Added for GDB support.

Tue Aug 18 18:44:00 1998  Jesper Skov  <[e-mail]>

	* include/hal_intr.h: 
	* include/hal_arch.h:
	Use cyg_type.h rather than ktypes.h.

Tue Aug 18 18:38:43 1998  Jesper Skov  <[e-mail]>

	* include/basetype.h: Fixed typo.

1998-08-18  Nick Garnett  <[e-mail]>

	* src/context.S: 
	* src/hal_misc.c: 
	* include/hal_intr.h: 
	* src/vectors.S:
	Now uses hal.h rather than kernel.h.

Mon Aug 17 16:23:46 1998  Jesper Skov  <[e-mail]>

	* include/hal_intr.h (HAL_DISABLE_INTERRUPTS): Fix MACRO line
	continuation.
	(HAL_RESTORE_INTERRUPTS): Same.

//===========================================================================
//####COPYRIGHTBEGIN####
//
// -------------------------------------------
// The contents of this file are subject to the Cygnus eCos Public License
// Version 1.0 (the "License"); you may not use this file except in
// compliance with the License.  You may obtain a copy of the License at
// http://sourceware.cygnus.com/ecos
// 
// Software distributed under the License is distributed on an "AS IS"
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
// License for the specific language governing rights and limitations under
// the License.
// 
// The Original Code is eCos - Embedded Cygnus Operating System, released
// September 30, 1998.
// 
// The Initial Developer of the Original Code is Cygnus.  Portions created
// by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions.  All Rights Reserved.
// -------------------------------------------
//
//####COPYRIGHTEND####
//===========================================================================