changelog

这个是LINUX下的GDB调度工具的源码

	(ARMul_OSHandleSWI): Set in_SWI_handler whilst emulating a SWI.
	(ARMul_OSException): Ignore exceptions generated whilst emulating
	a SWI.

2001-02-12  Nick Clifton  <[e-mail]>

	* armemu.h (NEGBRANCH): Fix defintion.

2001-02-01  Nick Clifton  <[e-mail]>

	* armemu.c (LoadSMult): Update base address register after
	restoring register bank.
	(StoreMult): Update base address register after restoring register
	bank.

2001-01-31  Nick Clifton  <[e-mail]>

	* armvirt.c (PutWord): Detect installation of SWI vector.
	(SWI_vector_installed): Define.
	* armos.c (ARMul_OsInit): Reset SWI_vector_installed.
	* armos.h (SWI_vector_installed): Declare.
	* wrapper.c (SWI_vector_installed): Remove definition.
	(sim_write): Remove check of SWI vector	installation

2000-12-18  Nick Clifton  <[e-mail]>

	* armemu.c (ARMul_Emulate26): Fix test for StoreDouble
	instruction.

2000-12-10  Nick Clifton  <[e-mail]>

	* armos.c (ARMul_OSHandleSWI): Add 0x91 as an FPE SWI.

2000-12-07  Nick Clifton  <[e-mail]>

	* armemu.c (ARMul_Emulate26): Detect double word load and
	store instructions and call emulation routines.
	(Handle_Load_Double): Emulate a double word load instruction.
	(Handle_Store_Double): Emulate a double word store
	instruction.

2000-12-03  Nick Clifton  <[e-mail]>

	* armos.c: Fix formatting.
	(ARMul_OSHandleSWI): Suppress support of DEMON SWIs when in xscale
	mode.

2000-11-29  Nick Clifton  <[e-mail]>

	* armdefs.h (State): Add 'v5e' and 'xscale' fields.
	(ARM_v5e_Prop): Define.
	(ARM_XScale_Prop): Define.
	
	* wrapper.c (sim_create_inferior): Select processor based on
	machine number.
	(SWI_vector_installed): New boolean.  Set to true if the SWI
	vector address is written to by the executable.
	
	* arminit.c (ARMul_NewState): Switch default to 32 bit mode.
	(ARMul_SelectProcessor): Initialise v5e and xscale signals.
	(ARMul_Abort): Fix calculation of LR address.

	* armos.c (ARMul_OSHandleSWI): If a SWI vector has been installed
	and a SWI is not handled by the simulator, pass the SWI off to the
	vector, otherwise issue a warning message and continue.

	* armsupp.c (ARMul_CPSRAltered): Set S bit aswell.
	
	* thumbemu.c: Add v5 instruction simulation.
	* armemu.c: Add v5, XScale and El Segundo instruction simulation.

	* armcopro.c: Add XScale co-processor emulation.
	* armemu.h: Add exported XScale co-processor functions.
	
2000-09-15  Nick Clifton  <[e-mail]>

	* armdefs.h: Rename StrongARM property to v4_ARM and add v5 ARM
	property.  Delete unnecessary processor names.
	(ARM_Strong_Prop): Delete.
	(STRONGARM): Delete.
	(ARM_v4_Prop): Add.
	(ARM_v5_Prop): Add
	(State): Delete is_StrongARM boolean.  Add is_v4 and is_v5
	booleans.

	* armemu.h (BUSUSEDINCPCS): Use is_v4 boolean.
	(BUSUSEDINCPCN): Use is_v4 boolean.

	* arminit.c (ARMul_NewState): Initialise is_v4 and is_v5 fields.
	(ARMul_SelectProcessor): Change second parameter from 'processor'
	to 'properties'.  Set is_v4 and is_v5 booleans in State.

	* armrdi.c: Remove use of ARM processor names.  Replace with ARM
	processor properties.

	* wrapper.c (sim_create_inferior): Choose properties passed to
	ARMul_SelectProcessor based on machine number.

2000-08-14  Nick Clifton  <[e-mail]>

	* armemu.c (LHPOSTDOWN): Compute write back value before
	performing load in case the offset register is overwritten.
	(LHPOSTUP): Ditto.

2000-07-14  Fernando Nasser <[e-mail]>

	* wrapper.c (sim_create_inferior): Fix typo in the previous patch.

2000-07-14  Fernando Nasser <[e-mail]>

	* wrapper.c (sim_create_inferior): Reset mode to ARM when creating a
	new inferior.

2000-07-04  Alexandre Oliva  <[e-mail]>

	* armvirt.c (ABORTS): Do not define.

	* armdefs.h (struct ARMul_State): Add is_StrongARM.
	(ARM_Strong_Prop, STRONGARM): Define.
	* arminit.c (ARMul_NewState): Reset is_StrongARM.
	(ARMul_SelectProcessor): Set is_StrongARM.
	* wrapper.c (sim_create_inferior): Use bfd machine type to
	determine processor type to emulate.
	* armemu.h (BUSUSEDINCPCS, BUSUSEDINCPCN): Don't increment PC
	when emulating StrongARM.

	* armemu.c (ARMul_Emulate, t_undefined): Proceed to next insn.

	* armemu.h (INSN_SIZE): New macro.
	(SET_ABORT): Save CPSR in SPSR and set LR.
	* armemu.c (ARMul_Emulate, isize): Set to INSN_SIZE.
	(WriteR15, WriteSR15): Do not discard bit 1 in Thumb mode.
	* arminit.c (ARMul_Abort): Use new SETABORT and INSN_SIZE.

	* armemu.c (LoadSMult): Use WriteR15() to discard the least
	significant bits of PC.

	* armemu.h (WRITEDESTB): New macro.
	* armemu.c (ARMul_Emulate26, bl): Use WriteR15Branch() to
	modify PC.  Moved the existing logic...
	(WriteR15Branch): ... here.  New function.
	(WriteR15, WriteSR15): Drop the two least significant bits.
	(LoadSMult): Use WriteR15Branch() to modify PC.
	(LoadMult): Use WRITEDESTB() instead of WRITEDEST().

	* armemu.h (GETSPSR): Call ARMul_GetSPSR().
	* armsupp.c (ARMul_CPSRAltered): Zero out bits as they're
	extracted from state->Cpsr, but preserve the unused bits.
	(ARMul_GetCPSR): Get bits preserved in state->Cpsr.
	(ARMul_GetSPSR, ARMul_FixCPSR): Use ARMul_GetCPSR() to
	get the full CPSR word.

	* armemu.h (PSR_FBITS, PSR_SBITS, PSR_XBITS, PSR_CBITS): New.
	(SETPSR_F, SETPSR_S, SETPSR_X, SETPSR_C): New macros.
	(SETPSR, SET_INTMODE, SETCC): Removed.
	* armsupp.c (ARMul_FixCPSR, ARMul_FixSPSR): Do not test bit
	mask.  Use SETPSR_* to modify PSR.
	(ARMul_SetCPSR): Load all bits from value.
	* armemu.c (ARMul_Emulate, msr): Do not test bit mask.

	* armemu.c (ARMul_Emulate): Compute writeback value before
	loading, since the offset register may be the destination
	register.

	* armdefs.h (SYSTEMBANK): Define as USERBANK.
	* armsupp.c (ARMul_SwitchMode): Remove SYSTEMBANK cases.

2000-06-22  Alexandre Oliva  <[e-mail]>

	* armemu.c (Multiply64): Fix computation of flag N.

	* armemu.c (MultiplyAdd64): Fix computation of flag N.

2000-06-20  Alexandre Oliva  <[e-mail]>

	* armemu.h (NEGBRANCH): Do not overwrite the two most significant
	bits of the offset.

2000-05-25  Nick Clifton  <[e-mail]>

	* armcopro.c (MMUMCR): Only indicate mode change if a singal has
	really changed.
	(MMUWrite): Only indicate mode change if a singal has really
	changed.

	* armdefs.h (SYSTEMMODE): Define.
	(BANK_CAN_ACEESS_SPSR): Define.

	* armemu.c (ARM_Emulate26): If the mode has changed allow the PC
	to advance before stopping the emulation.

	* arminit.c (ARMul_Reset): Ensure Mode field of State is set
	correctly.

	* armos.c (ARMul_OSInit): Create a initial stack pointer for
	System mode.

	* armsupp.c (ModeToBank): Remove unused first parameter.
	Add support for System Mode.
	(ARMul_GetSPSR): Use BANK_CAN_ACCESS_SPSR macro.
	(ARMul_SetSPSR): Use BANK_CAN_ACCESS_SPSR macro.
	(ARMul_FixSPSR): Use BANK_CAN_ACCESS_SPSR macro.
	(ARMulSwitchMode): Add support for System Mode.

Wed May 24 14:40:34 2000  Andrew Cagney  <[e-mail]>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

2000-05-23  Nick Clifton  <[e-mail]>

	* wrapper.c (sim_store_register): Special handling for CPSR
	register.

2000-03-11  Philip Blundell  <[e-mail]>

	* armemu.c (LoadSMult, LoadMult): Correct handling of aborts.
	Patch from Allan Skillman <[e-mail]>.

Wed Mar 22 15:24:21 2000  glen mccready  <[e-mail]>

	* wrapper.c (sim_open,sim_close): Copy into myname, free myname.

2000-02-08  Nick Clifton  <[e-mail]>

	* wrapper.c: Fix compile time warning messages.
	* armcopro.c: Fix compile time warning messages.
	* armdefs.h: Fix compile time warning messages.
	* armemu.c: Fix compile time warning messages.
	* armemu.h: Fix compile time warning messages.
	* armos.c: Fix compile time warning messages.
	* armsupp.c: Fix compile time warning messages.
	* armvirt.c: Fix compile time warning messages.
	* bag.c: Fix compile time warning messages.
	
2000-02-02  Bernd Schmidt  <[e-mail]>

	* *.[ch]: Use indent to make readable.

1999-11-22  Nick Clifton  <[e-mail]>

	* armos.c (SWIread): Generate an error message if a huge read is
	performed.
	(SWIwrite): Generate an error message if a huge write is
	performed.

1999-10-27  Nick Clifton  <[e-mail]>

	* thumbemu.c (ARMul_ThumbDecode): Accept 0xbebe as a thumb
	breakpoint. 

1999-10-08  Ulrich Drepper  <[e-mail]>

	* armos.c (SWIopen): Always pass third parameter with 0666 since
	otherwise uninitialized memory gets access if the O_CREAT bit is
	set and so we possibly cannot access the file afterwards.

1999-09-29  Doug Evans  <[e-mail]>

	* armos.c (SWIWrite0): Send output to stdout instead of stderr.
	(ARMul_OSHandleSWI, case SWI_WriteC,AngelSWI_Reason_WriteC): Ditto.

Thu Sep  2 18:15:53 1999  Andrew Cagney  <[e-mail]>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

1999-05-08  Felix Lee  <[e-mail]>

	* configure: Regenerated to track ../common/aclocal.m4 changes.
	
1999-04-06  Keith Seitz  <[e-mail]>

	* wrapper.c (stop_simulator): New global.
	(sim_stop): Set sim state to STOP and set
	stop_simulator.
	(sim_resume): Reset stop_simulator.
	(sim_stop_reason): If stop_simulator is set, tell gdb
	that the we took SIGINT.
	* armemu.c (ARMul_Emulate26): Don't loop forever. Stop if
	stop_simulator is set.

1999-04-02  Keith Seitz  <[e-mail]>

	* armemu.c (ARMul_Emulate26): If NEED_UI_LOOP_HOOK, call ui_loop_hook
	whenever the counter expires.
	* Makefile.in (SIM_EXTRA_CFLAGS): Include define NEED_UI_LOOP_HOOK.

1999-03-24  Nick Clifton  <[e-mail]>

	* armemu.c (ARMul_Emulate26): Handle new breakpoint value.
	* thumbemu.c (ARMul_ThumbDecode): Handle new breakpoint value.

Mon Sep 14 09:00:05 1998  Nick Clifton  <[e-mail]>

	* wrapper.c (sim_open): Set endianness according to BFD or command
	line switch.

	* tconfig.in: Define SIM_HAVE_BIENDIAN.

Thu Aug 27 11:00:05 1998  Nick Clifton  <[e-mail]>

	* armemu.c (Multiply64): Test for Rm (rather than Rs) not being
	the same as either RdHi or RdLo.

Thu Jul  2 10:24:35 1998  Nick Clifton  <[e-mail]>

	* armos.c (ARMul_OSHandleSWI: AngelSWI_Reason_ReportException):
	Set Reg[0] based on reason for for the exception.

Thu Jun  4 15:22:03 1998  Jason Molenda  ([e-mail])

	* armos.c (SWIwrite0): New function.
	(WriteCommandLineTo): New function.
	(SWIopen): New function.
	(SWIread): New function.
	(SWIwrite): New function.
	(SWIflen): New function.
	(ARMul_OSHandleSWI): Call new functions instead of handling	
	these here.
	(ARMul_OSHandleSWI): Handle Angel SWIs correctly.
	(*): Reformat spacing to be a bit more GNUly.
	Most code taken from a patch by Anthony Thompson 
	([e-mail])

Tue Jun  2 15:22:22 1998  Nick Clifton  <[e-mail]>

	* armos.h: Add Angel SWI and its reason codes.
	* armos.c (ARMul_OSHandleSWI): Ignore Angel SWIs (for now).

Mon Jun  1 17:14:19 1998  Anthony Thompson ([e-mail])

	* armos.c (ARMul_OSHandleSWI::SWI_Open): Handle special case
	of ":tt" to catch stdin in addition to stdout.
	(ARMul_OSHandleSWI::SWI_Seek): Return 0 or 1 to indicate failure
	or success of lseek().

Wed May 20 17:36:25 1998  Nick Clifton  <[e-mail]>

	* armos.c (ARMul_OSHandleSWI): Special case code to catch attempts
	to open stdout.

Wed Apr 29 15:29:55 1998  Jeff Johnston  <[e-mail]>

	* armos.c (ARMul_OSHandleSWI): Added code for SWI_Clock,
	SWI_Flen, and SWI_Time.  Also fixed SWI_Seek code to only
	seek from offset 0 and not to use R2 for whence since it is
	not passed as part of the SWI call.

Tue Apr 28 18:33:31 1998  Geoffrey Noer  <[e-mail]>

	* configure: Regenerated to track ../common/aclocal.m4 changes.

Sun Apr 26 15:31:55 1998  Tom Tromey  <tromey@creche>

	* configure: Regenerated to track ../common/aclocal.m4 changes.
	* config.in: Ditto.

Sun Apr 26 15:20:26 1998  Tom Tromey  <[e-mail]>

	* acconfig.h: New file.
	* configure.in: Reverted change of Apr 24; use sinclude again.