changelog

这个是LINUX下的GDB调度工具的源码

	(print_run_body): Fix SMP case.

	* gen-support.c (support_c_function): Call sim_engine_abort when
 	internal function fails to long jump.

Wed Jan 21 18:00:22 1998  Andrew Cagney  <[e-mail]>

	* gen-semantics.c (print_semantic_body): Use GPR_SET to zero
 	hardwired register.

Wed Dec 17 14:49:03 1997  Jeffrey A Law  ([e-mail])

	* gen-semantics.c (print_semantic_body): Fix handling of
	hardwired zero register.

Tue Dec  9 12:45:00 1997  Andrew Cagney  <[e-mail]>

	* igen.h (struct _igen_gen_options): Add member default_model.

	* igen.c (gen_run_c): Default to the first machine in the
 	multi-sim list.
	(main): Add MODEL parameter to gen-multi-sim option.

	* gen.h (function_decl_type): Declare enum.

	* gen-engine.c (print_engine_run_function_header), gen-engine.h:
 	Make global, pass function_decl_type as argument.
	(gen_engine_h, gen_engine_c): Update call.

	* gen-idecode.c (print_idecode_issue_function_header),
 	gen-idecode.h: Pass function_decl_type as argument.

	* igen.c (gen_idecode_h): For multi-sim, delcare global variable
 	idecode_issue.

	* igen.c (gen_run_c): For multi-sim, initialize globals
 	idecode_issue and engine_run.

Fri Nov 14 10:51:44 1997  Andrew Cagney  <[e-mail]>

	* ld-insn.c (parse_insn_model_record): Allow multiple model names
 	to be specified in a single instruction model record.
	(dump_insn_model_entry): Update.

	* ld-insn.h (struct _insn_model_entry): Replace member name with
 	the filter names.  Document syntax change.

Wed Nov 12 15:45:40 1997  Andrew Cagney  <[e-mail]>

	* gen-engine.c (print_run_body): Add hooks for adding code before
 	and after an instruction has been issued.

1997-11-04  Brendan Kehoe  <[e-mail]>

	* gen-idecode.c (print_jump_until_stop_body): Use `#if 0' instead of
	`#ifdef 0' around this.

Tue Nov  4 08:18:29 1997  Michael Meissner  <[e-mail]>

	* ld-decode.c (load_decode_table): Don't assume NULL is an integer
	constant.

Wed Oct 29 13:17:17 1997  Andrew Cagney  <[e-mail]>

	* ld-insn.h: Document mnemonic string format.

Tue Oct 28 10:50:35 1997  Andrew Cagney  <[e-mail]>

	* gen-icache.c (print_icache_extraction): Force result of atol to
 	unsigned.

	* ld-insn.c (parse_function_record): Separate handling of old and
 	ney fynction records.
	(load_insn_table): For %s record, hack function name & type after
 	it has been parsed.

	* filter.h (filter_is_subset): Reverse argument names, wrong
 	order.

	* ld-insn.c (load_insn_table): Move include code to.
	(parse_include_record): New function.  Check for filtering of
 	include statement by both flags and models.
	(load_insn_table): Check for model filtering of cache and model
 	records.
	(parse_model_data_record): Check for model & flag filtering of
 	model data records.
	(parse_function_record): Check for model & flag filtering of
 	function records.

	* ld-insn.h: Define record_filter_models_field.  Add filter-models
 	field to all but instruction records.
	(struct _function_entry, struct _cache_entry): Add models field.
	(nr_function_fields): Make parm field mandatory.

Mon Oct 27 15:14:26 1997  Andrew Cagney  <[e-mail]>

	* igen.c (main): Change -I option to -I<directory>.  Add optional
 	size to -Ggen-icache option.  Add -Gno-... support.
	
	* igen.h (struct _igen_options): Add include field.
	
	* ld-insn.c (enum insn_record_type, insn_type_map): Add
 	include_record.
	(load_insn_table): Call table_push when include record.
	
	* table.c (struct _open table, struct table): Make table object an
 	indirect ptr to the current table file.
	(current_line, new_table_entry, next_line): Make file arg type
 	open_table.
	(table_open): Use table_push.
	(table_read): Point variable file at current table, at eof, pop
 	last open table.

	* table.h, table.c (table_push): New function.

Thu Oct 16 11:03:27 1997  Andrew Cagney  <[e-mail]>

	* gen-semantics.c (print_semantic_body): Use CIA not
 	cia.ip. Escape newlines at end of generated call to
 	sim_engine_abort.

Tue Oct 14 11:13:27 1997  Andrew Cagney  <[e-mail]>

	* igen.c (print_itrace): Output line-ref to igen source file when
 	generating trace statements.
	(print_itrace_prefix, print_itrace_format): Escape newline at end
 	of each line of generated call to trace function.

Mon Oct 13 11:27:31 1997  Andrew Cagney  <[e-mail]>

	* gen-support.c (gen_support_h): Generate #define NIA. Definition
 	dependant on gen-delayed-branch mode.

	* ld-insn.c (parse_insn_mnemonic_record): Check for opening and
 	closing double quote in mnemonic field.
	(parse_option_record): Add gen-delayed-branch option.

Wed Oct  8 13:10:16 1997  Andrew Cagney  <[e-mail]>

	* gen.c (insn_list_insert): Missing \n in warning.

	* ld-insn.c (load_insn_table): Only notify of discarded
 	instrctions when warn.discard enabled.

	* igen.h: Add option.warn.discard, default enabled.

	* igen.c (main): Add -Wnodiscard option.

	* ld-insn.c (record_type): For old record type, check the number
 	of fields is correct.
	(load_insn_table): Allow insn assembler and insn model records to
 	appear in any order.
	(parse_insn_model_record): Rename from parse_insn_model_records.
  	Parse only one record.
	(parse_insn_mnemonic_record): Rename from
 	parse_insn_mnemonic_records.  Parse only one record.

Tue Sep 23 15:52:06 1997  Felix Lee  <[e-mail]>

	* gen-itable.c (gen_itable_h): [nr_itable_* + 1] to avoid
 	illegal zero-sized array.
	(itable_print_set): likewise, avoid empty initializers.

Mon Sep 22 18:49:07 1997  Felix Lee  <[e-mail]>

	* configure.in: i386-windows is a cross, so don't expect
 	libiberty to be there.
	* configure: updated.
	
Fri Sep 19 10:36:30 1997  Andrew Cagney  <[e-mail]>

	* igen.c (print_function_name): Put the format name after the
 	function / instruction name, not before.
	(print_itrace): Better format trace code.

Tue Sep 16 11:01:07 1997  Andrew Cagney  <[e-mail]>

	* gen.c (insns_bit_useless): Don't treat string fields restricted
 	to a range of values as useless.

Mon Sep 15 15:47:21 1997  Andrew Cagney  <[e-mail]>

	* igen.c (gen_run_c): Handle non-multi-sim case.

	* gen-support.c (gen_support_h): Define SD_ - to replace _SD.
  	Define CIA from cia.

Thu Sep 11 10:27:39 1997  Andrew Cagney  <[e-mail]>

	* gen-semantics.c (print_semantic_body): Trace the instruction
 	after it has been validated.
	(print_semantic_body): Count the instruction using sim-profile.
	
Wed Sep 10 13:35:37 1997  Andrew Cagney  <[e-mail]>

	* gen-itable.c (gen_itable_h): Collect summary info on instruction
 	table when traversing it.
	(gen_itable_h): Output an enum defining the max size of each of
 	the itable string members.

Tue Sep  9 03:30:26 1997  Andrew Cagney  <[e-mail]>

	* igen.c (gen_run_c): New function. Generate sim_engine_run that
 	looks at the currently selected architecture.

	* gen-engine.c, gen-idecode.c: Add multi-sim support - generate
 	one engine per model.
	
	* gen-semantics.c, gen-icache.c gen-support.c:
 	Update.

	* ld-insn.h, ld-insn-h (load_insn_table): Rewrite.  table.h only
 	returns a line at a time.  Parse multi-word instructions.  Add
 	multi-sim support.

	* table.h, table.c: Simplify.  Only parse a single line at a time.
  	ld-insn can handle the rest.

	* filter.h, filter.c (filter_parse, filter_add, filter_is_subset,
 	filter_is_common, filter_is_member, filter_next): New filter
 	operations.
	(dump_filter): Ditto.
	
	* gen.h, gen.c: New file.  Takes the insn table and turns it into
 	a set of decode tables and semantic functions.
	
	* ld-insn.c: Copy generator code from here.
	* gen.c: To here.

Fri Aug  8 11:43:45 1997  Andrew Cagney  <[e-mail]>

	* misc.h (NZALLOC): Allocate an N element array of TYPE.

	* table.h, table.c: Simplify table parser so that it only
 	understands colon delimited lines and code blocks.
	(table_read): Parse '{' ... '}' as a code block.
	(table_print_code): New function, print out a code block to file.
	(main): Add suport for standalone testing.
	
	* ld-insn.h, ld-insn.c:
	
	
Mon Sep  1 11:41:12 1997  Andrew Cagney  <[e-mail]>

	* gen-idecode.c (error_leaf_contains_multiple_insn): Make static.
	(print_jump_definition, print_jump, print_jump_internal_function,
 	print_jump_insn, print_jump_until_stop_body): Delete, moved to
 	sim-engine.c

	* igen.c (print_itrace_format): Delete unused variable chp.
	(gen-engine.h): Include.

	* table.c (current_file_name, current_line_entry,
 	current_line_entry): Make static.

Wed Aug  6 12:31:17 1997  Andrew Cagney  <[e-mail]>

	* configure.in: Define AR_FOR_BUILD, AR_FLAGS_FOR_BUILD,
 	RANLIB_FOR_BUILD and CFLAGS_FOR_BUILD.
	* configure.in: Include simulator common/aclocal.m4.
	* configure.in: Add --enable-sim-warnings option.
	* configure: Re-generate.
	
	* Makefile.in: Use.

	* Makefile.in (tmp-filter): New rule.
	(igen.o, tmp-table, tmp-ld-decode, tmp-ld-cache, tmp-ld-insn,
 	ld-decode.o, ld-cache.o, ld-insn.o): Fix dependencies.
	
	* gen.h, gen.c: New files.
  	
	* Makefile.in (gen.o, tmp-gen): New rules, update all
 	dependencies.
	
Tue Jun 24 11:46:45 1997  Andrew Cagney  <[e-mail]>

	* ld-insn.c (load_insn_table): Accept %s as a function type.

Thu Jun  5 17:14:32 1997  Andrew Cagney  <[e-mail]>

	* igen.c (print_itrace_prefix): Move printing of insn prefix to
 	here.
	(print_itrace_format): Drop printing of MY_NAME in instruction
 	trace.  Printing of insn prefix moved.
	(print_itrace): Ditto.

Fri May 30 11:27:37 1997  Andrew Cagney  <[e-mail]>

	* gen-icache.c (print_icache_function_header): Pass
 	table_line_entry instead of separate file and line.

	* table.c (table_entry_read): Set assembler source file/line-nr to
 	the current not initial file.
	(table_entry_read): Fix line numbering of source files.

	table.h (table_line_entry): New structure.  Exactly specifies a
 	source file/line-nr.
	(table_*_entry): Add this to all.
	
	table.c (table_entry_print_cpp_line_nr): Change to use values from
 	a table_line_entry struct.
	(table_entry_read): Save table_line_entry in all structures read.

	gen-icache.c, gen-support.c, gen-idecode.c, gen-semantics.c,
 	gen-model.c: Update all references.
	
Thu May 29 10:29:57 1997  Andrew Cagney  <[e-mail]>

	* igen.c (print_my_defines): Define MY_NAME - a string.  For
 	MY_PREFIX, undefine the name of the function incase some dumb
 	header defined it.  it.
	(print_itrace): Use MY_NAME not MY_PREFIX.

	* lf.c (lf_write): New function write an N character buffer to the
 	file.

	* igen.c (print_itrace): When available, use the assembler to
 	print the insn-trace.
	(print_itrace_prefix): New function, print first part of call to
 	print_one_insn.
	(print_itrace_format): New function, print fmt argument for
 	print_one_insn.
	
	* table.c (table_entry_read): Save any assembler lines instead of
 	discarding them.

Wed May 28 09:55:29 1997  Andrew Cagney  <[e-mail]>

	* gen-icache.c (print_icache_body): Process immeds.

	* gen-semantics.c (print_semantic_body): When computing NIA, skip
 	any immed words that follow the instruction word.

	* ld-insn.c (parse_insn_format): Parse immeds appended to an
 	instruction.

	* igen.c (main): Allow any register to be specified as the zero
 	register.
	(semantic_zero_reg): Global, index to zero register.

	* gen-semantics.c (print_semantic_body): Zero selected register.

Tue May 27 14:12:32 1997  Andrew Cagney  <[e-mail]>

	* igen.h: Stop options and code gen type bit masks overlaping.

Fri May 23 12:01:08 1997  Andrew Cagney  <[e-mail]>

	* gen-semantics.c (print_semantic_body): Incorrect test for
 	zero-r0 code.

Fri May 16 14:32:31 1997  Andrew Cagney  <[e-mail]>

	* gen-semantics.c (print_semantic_body): Use common sim-engine
 	interface.

Fri May 16 11:48:30 1997  Andrew Cagney  <[e-mail]>

	* gen-semantics.c (print_semantic_body): Add code to clear r0.

	* igen.c (main): Add new option zero-r0, which adds code to clear
 	GPR(0) each cycle.

Wed May  7 12:31:30 1997  Andrew Cagney  <[e-mail]>

	* igen.c (print_itrace): Fix so line-nr is passed to trace
 	function.

	* gen-idecode.c (print_idecode_validate): Correct FP code.