changelog

这个是LINUX下的GDB调度工具的源码

	* cgen-par.h (sim_queue_fn_pc_write): New function.
	(CGEN_FN_PC_WRITE): New enumerator.
	(fn_pc_write): New union member.
	* cgen-par.c (sim_queue_fn_pc_write): New function.
	(cgen_write_queue_element_execute): Handle CGEN_FN_PC_WRITE.

1999-10-18  Dave Brolley  <[e-mail]>

	* cgen-par.h (CGEN_MEM_DI_WRITE): New enumerator.
	(CGEN_MEM_DF_WRITE): New enumerator.
	(mem_di_write): New union member.
	(mem_df_write): New union member.
	* cgen-par.c (sim_queue_mem_di_write): New function.
	(sim_queue_mem_df_write): New function.
	(cgen_write_queue_element_execute): Handle CGEN_MEM_DI_WRITE and
	CGEN_MEM_DF_WRITE.
	* cgen-accfp.c (divsf): Check for division errors.

1999-10-14  Doug Evans  <[e-mail]>

	* cgen-engine.h (EXTRACT_INT,EXTRACT_UINT): Delete.

1999-10-07  Dave Brolley  <[e-mail]>

	* cgen-par.h (CGEN_FN_HI_WRITE): New enumerator. 
	(fn_hi_write): New union member.
	(sim_queue_fn_hi_write): New function.
	* cgen-par.c (sim_queue_fn_hi_write): New function.
	(cgen_write_queue_element_execute): Handle CGEN_FN_HI_WRITE.

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

	* cgen-defs.h (sim_engine_invalid_insn): New arg `vpc'.
	Change type of result to SEM_PC.

Wed Sep 29 14:43:57 1999  Dave Brolley  <[e-mail]>

	* cgen-defs.h (sim_engine_invalid_insn): Now returns PC.

1999-09-25  Doug Evans  <[e-mail]>

	* cgen-ops.h (SUBWORD*): Delete cpu arg.
	(JOIN*): Delete cpu arg.

Tue Sep 21 17:14:16 1999  Dave Brolley  <[e-mail]>

	* genmloop.sh (@cpu@_scache_lookup): No longer takes last_insn_p
	parameter.
	(SET_LAST_INSN_P): Set last_insn_p flag in the scache element.

Mon Sep 20 21:44:06 1999  Geoffrey Keating  <[e-mail]>

        * sim-fpu.c (i2fpu): Keep the guard bits sticky when converting
        large values.

Tue Feb  8 16:33:48 2000  Andrew Cagney  <[e-mail]>

	* run.c (main): Check the sim_stop_reason and only halt simulation
 	when a valid stop condition is identified.

Wed Sep 15 14:12:37 1999  Andrew Cagney  <[e-mail]>

	* hw-tree.c, hw-properties.c, hw-instances.c: Include "sim-io.h".

Tue Sep 14 14:15:47 1999  Dave Brolley  <[e-mail]>

	* cgen-par.h (CGEN_BI_WRITE): New enumerator.
	(bi_write): New union element.
	(sim_queue_bi_write): New function.
	* cgen-par.c (sim_queue_bi_write): New function.
	(cgen_write_queue_element_execute): Handle CGEN_BI_WRITE.

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

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

	* aclocal.m4 (WERROR_CFLAGS, WARN_CFLAGS): Merge from
 	../gdb/configure.in.
	* Make-common.in (WERROR_CFLAGS, WARN_CFLAGS): Define.
	(SIM_WERROR_CFLAGS, SIM_WARN_CFLAGS): Define.
	(SIM_WARNINGS): Delete
	(CONFIG_CFLAGS): Update.

Tue Aug 31 16:01:42 1999  Dave Brolley  <[e-mail]>

	* cgen-par.c: New file.
	* cgen-par.h: New file.
	* cgen-sim.h (cgen-par.h): #include it.
	* cgen-cpu.h (write_queue): New field.
	(CPU_WRITE_QUEUE): New access macro.
	* Make-common.in (CGEN_MAIN_CPU_DEPS): Add cgen-par.h.
	(cgen-par.o): New target.

1999-08-28  Doug Evans  <[e-mail]>

	* cgen-types.h (mode_type,MODE_VOID): Renamed from MODE_VM.
	* cgen-utils.c (mode_names): Update.

1999-08-20  Doug Evans  <[e-mail]>

	* genmloop.sh: New args -parallel-generic-write, -parallel-only.
	* cgen-engine.h (SEMANTIC_FN): Don't use version with PAREXEC
	buffer arg if WITH_PARALLEL_GENWRITE.
	(struct insn_sem): Handle WITH_PARALLEL_GENWRITE.
	(struct idesc): Ditto.

Wed Aug 18 18:17:28 1999  Doug Evans  <[e-mail]>

	* sim-model.c (model_option_handler): Add \n to error message.

1999-08-08  Doug Evans  <[e-mail]>

	* cgen-engine.h (SEM_FN_NAME,SEMF_FN_NAME): Delete.
	(insn_sem): Rewrite.
	(sem_fn_desc): New struct.
	(idesc): Rewrite.
	* genmloop.sh (scache case,@cpu@_scache_lookup): Profile scache hit,
	misses if ! FAST_P.
	(scache case): Split into non-parallel/parallel versions.
	(@cpu@_engine_run_{full,fast}): Call @cpu@_{sem,semf}_init_idesc_table
	if not use semantic switch version.

1999-08-04  Doug Evans  <[e-mail]>

	* cgen-defs.h (SEM_BRANCH_TYPE): New enum.
	* cgen-engine.h (SEM_BRANCH_UNTAKEN,SEM_BRANCH_UNCACHEABLE): Delete.
	(SEM_BRANCH_INIT_EXTRACT): Delete.
	(SEM_BRANCH_INIT): Replace npc_ptr with br_type.
	(SEM_BRANCH_FINI): Ditto.
	(SEM_BRANCH_VIA_ADDR): Ditto.
	(SEM_BRANCH_VIA_CACHE): Ditto.  Delete cachvarptr arg.
	(SEM_BRANCH_ADDR_CACHE): Delete.
	(SEM_SKIP_COMPILE,SEM_SKIP_INSN): New macros.
	* cgen-scache.h (cpu_scache): Replace member pbb_pr_npc_ptr with
	pbb_br_type.
	* genmloop.sh (eng.hin): Update prototype of ${cpu}_pbb_cti_chain.
	(@cpu@_pbb_begin): Initialize branch_target.
	(@cpu@_pbb_cti_chain): Replace arg new_vpc_ptr with br_type.
	(@cpu@_engine_run_full): Replace local pbb_br_npc_ptr with
	pbb_br_type.
	(@cpu@_engine_run_fast): Ditto.

Fri Jul 16 14:47:53 1999  Dave Brolley  <[e-mail]>

	* cgen-utils.c (RORSI): New function.
	(ROLSI): New function.

1999-07-14  Doug Evans  <[e-mail]>

	* Makefile.in (TAGS): Tweak TAGS regex.
	* cgen-mem.h (*): Add TAGS markers.

Sun Jul 11 23:47:20 1999  Andrew Cagney  <[e-mail]>

	* sim-resume.c (sim_resume): Ensure that the siggnal [sic] is only
 	passed in when sim_resume is first entered - don't re-pass it
 	after a restart.
	
Sun Jul 11 23:34:44 1999  Andrew Cagney  <[e-mail]>

	* sim-options.c (standard_option_handler): Add OPTION_LOAD_VMA and
 	OPTION_LOAD_LMA but only when is defined.
	(standard_options): When SIM_HANDLES_LMA is defined include
 	options --load-lma and --load-vma.
	(standard_install): Initialize STATE_LOAD_AT_LMA_P.

	* sim-base.h (STATE_LOAD_AT_LMA_P): Define.
	(struct sim_state_base): Add load_at_lma_p.
	* sim-hload.c (sim_load): Replace SIM_HANDLES_LMA with
 	STATE_LOAD_AT_LMA_P.

Sun Jul 11 12:03:36 1999  Andrew Cagney  <[e-mail]>

	* nrun.c (main): Re-format loop gnu style.

Wed Jul  7 19:56:03 1999  Andrew Cagney  <[e-mail]>

	* dv-sockser.c (connected_p): Initialize addrlen.

1999-07-06  Dave Brolley  <[e-mail]>

	* cgen-accfp.c (floatsidf): New function.
	(fixdfsi): New function.

1999-07-06  Doug Evans  <[e-mail]>

	* sim-model.c (sim_model_init): Issue error if machine is unsupported.

1999-07-05  Doug Evans  <[e-mail]>

	* Make-common.in (CGEN_MAIN_CPU_DEPS): Add cgen-fpu.h.
	(cgen-fpu.o,cgen-accfp.o): Add rules for.
	* cgen-fpu.c: New file.
	* cgen-fpu.h: New file.
	* cgen-accfp.c: New file.
	* cgen-cpu.h (CGEN_CPU): New member fpu.
	* cgen-mem.h: Redo fp support.
	* cgen-ops.h: Delete k&r support.  Redo fp support.
	* cgen-sim.h: Include cgen-fpu.h.
	* cgen-types.h (SF,DF,XF,TF): Moved to cgen-fpu.h.

1999-06-23  Doug Evans  <[e-mail]>

	* cgen-engine.h (TARGET_SEM_BRANCH_FINI): Remove cruft at end of
	ifndef.
	* genmloop.sh (@cpu@_scache_lookup): Delete unused local var.
	(@cpu@_pbb_cti_chain): Minor clean up.

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

        * aclocal.m4: Use AC_EXEEXT instead of AM_EXEEXT.  Delete defn of
        AM_CYGWIN32 and AM_EXEEXT.
	* configure: Regenerate.
	
Fri Apr 16 16:43:22 1999  Doug Evans  <[e-mail]>

	* sim-core.c (device_error,device_io_read_buffer,
	device_io_write_buffer): Delete decls.
	* sim-core.h: Put them here.

	* sim-core.c (sim_core_read_buffer): Pass sd to device_io_read_buffer.
	(sim_core_write_buffer): Pass sd to device_io_write_buffer.
	* sim-n-core.h (sim_core_read_aligned_N): Ditto.
	(sim_core_write_aligned_N): Ditto.

1999-04-14  Stephane Carrez  <[e-mail]>

	* sim-memopt.c (sim_memory_uninstall): Don't look into
	free()d memory.

1999-04-14  Doug Evans  <[e-mail]>

	* cgen-utils.scm (virtual_insn_entries): Update attribute definition.

1999-04-13  Doug Evans  <[e-mail]>

	* sim-core.c (sim_core_read_buffer): Handle NULL cpu when WITH_DEVICES.
	(sim_core_write_buffer): Ditto.

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

	* sim-io.c (sim_io_poll_quit): Only call the poll_quit callback
	after the interval counter has expired.
	(POLL_QUIT_INTERVAL): Define. Used to tweak the frequency of
	poll_quit callbacks. May be overridden by Makefile.
	(poll_quit_counter): New global.
	* sim-events.c: Remove all mentions of ui_loop_hook. The
	host callback "poll_quit" will serve the purpose.
	* run.c: Add definition of ui_loop_hook when NEED_UI_LOOP_HOOK
	is defined.
	* nrun.c: Remove declaration of ui_loop_hook.

Wed Mar 31 18:55:41 1999  Doug Evans  <[e-mail]>

	* cgen-run.c (sim_resume): Don't tell main loop to run "forever"
	if being used by gdb.

1999-03-22  Doug Evans  <[e-mail]>

	* cgen-types.h (XF,TF): Tweak.
	* cgen-ops.h: Redo inline support.  Delete DI_FN_SUPPORT,
	in cgen-types.h.
	(SUBWORD*,JOIN*): Define.
	* cgen-trace.c (sim_cgen_disassemble_insn): Update, base_insn_bitsize
	moved into cpu descriptor.
	* sim-model.h (MACH): New member `num'.

1999-02-09  Doug Evans  <[e-mail]>

	* cgen-cpu.h (CGEN_DISASSEMBLER): New type.
	(CGEN_CPU): Member opcode renamed to cpu_desc.
	New members get_idata,disassembler.
	* cgen-defs.h (CGEN_INSN_VIRTUAL_P): CGEN_INSN_ATTR renamed to
	CGEN_INSN_ATTR_VALUE.
	(CGEN_STATE): Delete member opcode_table.
	(sim_disassemble_insn): Delete decl.
	* cgen-engine.h (struct insn_sem): Moved to here from <cpu>-decode.c.
	(struct idesc): Moved to here from <cpu>-decode.h.
	* cgen-run.c (prime_cpu): Call prepare_run callback.
	* cgen-trace.h (SFILE): New type.
	(sim_disasm_sprintf): Declare.
	(sim_disasm_read_memory,sim_disasm_perror_memory): Declare.
	(sim_cgen_disassemble_insn): Declare.
	* cgen-trace.c: Include errno.h,dis-asm.h.  Don't include cpu-opc.h.
	(insn_fields): Delete.
	(trace_insn_fini): STATE_OPCODE_TABLE (sd) replaced with
	CPU_CPU_DESC (cpu).
	(trace_insn): Call CPU_DISASSEMBLER hook.
	(sim_disasm_sprintf): New function.
	(sim_disasm_read_memory): New function.
	(sim_disasm_perror_memory): New function.
	(sim_cgen_disassemble_insn): New function.
	* cgen-utils.c: Don't include cpu-opc.h.
	(virtual_insn_entries): New static local.
	(cgen_virtual_insn_table): Renamed from cgen_virtual_opcode_table.
	(cgen_insn_name): Rewrite.
	(disasm_sprintf,sim_disassemble_insn): Moved to cgen-trace.c.
	* cgen.sh (desc): New file generator handler.
	* genmloop.sh: -parallel changed to -parallel-read/-parallel-write.
	Define WITH_PARALLEL_READ/WITH_PARALLEL_WRITE appropriately.
	Don't include cpu-opc.h,cpu-sim.h.
	* sim-model.c (model_set): Delete SIM_DESC arg.
	(sim_model_set): Update.
	* sim-model.h (MACH): New member prepare_run.

1999-01-28  Frank Ch. Eigler  <[e-mail]>

	* sim-memopt.c (memory_option_handler): Avoid memset() calls
	if redundant with allocator functions.

Wed Jan 27 17:19:09 1999  Doug Evans  <[e-mail]>

	* cgen-engine.h (EXTRACT_LSB0_{INT,UINT}): Fix.

	* sim-profile.h: Make like sim-trace.h.
	(PROFILE_USEFUL_MASK): New macro.
	* sim-profile.c (profile_options): Make like trace_options, allow
	optional on|off arg where applicable.
	(set_profile_option_mask): New function.
	(sim_profile_set_option): New function.
	(profile_option_handler): Simplify.
	Have -p only enable selected things, not everything.
	Add missing break to OPTION_PROFILE_PC_RANGE.
	* cgen-scache.c (scache_options): Allow optional on|off arg to
	--profile-scache.
	(scache_option_handler): Use sim_profile_set_option.

1999-01-26  Frank Ch. Eigler  <[e-mail]>

	* sim-memopt.c (memory_options): Add MEMORY_FILL option.
	(memory_option_handler): Implement MEMORY_FILL option.  Make
 	MEMORY_CLEAR an alias for MEMORY_FILL=0.
	(parse_ulong_value): New function.
	(do_memopt_add): Allocate all buffers.  Optionally fill them.

1999-01-15  Richard Henderson  <[e-mail]>

	* hw-events.c (hw_event_queue_schedule): _vtracef takes a
	va_list, not an integer.
	* sim-events.c (sim_events_schedule): Likewise.

	* sim-types.h (UNSIGNED32, UNSIGNED64): Properly cast to 
	the appropriate type.

1999-01-14  Doug Evans  <[e-mail]>

	* cgen-defs.h (PCADDR,CIA): Define in terms of IADDR.
	(sim_disassemble_insn): Update prototype.
	(sim_engine_invalid_insn): Ditto.
	* cgen-engine.h (SEMANTIC_FN): Add !WITH_SCACHE version.
	(SEM_BRANCH_INIT): PCADDR->IADDR.
	(SEM_NBRANCH_FINI): New macro for !WITH_SCACHE case.
	* cgen-scache.c (scache_lookup,scache_lookup_or_alloc): PCADDR->IADDR.
	* cgen-scache.h (*): Ditto.
	* cgen-trace.c (*): Ditto.
	* cgen-trace.h (*): Ditto.
	* cgen-utils.c (*): Ditto.
	* cgen-types.h (integer modes): Use signedNN/unsignedNN types.
	(insn_t): Delete.
	* genmloop.sh (@cpu@_fill_argbuf): Add !WITH_SCACHE support.
	(simple engine framework): Rewrite.
	* sim-module.c (modules): Install model module sooner (and in
	particular before the profile module).

1999-01-12  Doug Evans  <[e-mail]>

	* sim-model.h (sim_mach_lookup_bfd_name): Add prototype.
	* sim-model.c (sim_mach_lookup_bfd_name): New function.
	(sim_model_init): Call it.

	* cgen-trace.c (trace_insn): Pass pc to trace_prefix for virtual insns.

1999-01-05  Doug Evans  <[e-mail]>

	* Make-common.in (CGEN_INCLUDE_DEPS): Add cgen-defs.h, cgen-engine.h.
	* cgen-engine.h (SEM_BRANCH_FINI): New arg pcvar, all uses updated.
	(SEM_BRANCH_INIT_EXTRACT): New macro.
	(SEM_BRANCH_INIT): Add taken_p.
	(TARGET_SEM_BRANCH_FINI): Provide default definition.
	(SEM_BRANCH_FINI): Use it.
	(SEM_INSN): Update.
	* cgen-run.c (sim_resume): Handle tracing of last insn.