changelog

这个是LINUX下的GDB调度工具的源码

Tue Sep 16 15:14:01 1997  Andrew Cagney  <[e-mail]>

	* simops.c (trace_pc, trace_name, trace_values, trace_num_values):
 	New static globals.
	(trace_input): Just save pc, name and values for trace_output.
	(trace_output): Write trace values to a buffer.  Use
 	trace_one_insn to print trace info and buffer.
	(SIZE_OPERANDS, SIZE_LOCATION): Delete.
	
Tue Sep 16 09:02:00 1997  Andrew Cagney  <[e-mail]>

	* sim-main.h (struct _sim_cpu): Add psw_mask so that reserved bits
 	can be masked out.

	* simops.c (OP_2007E0, OP_4007E0): Move "ldsr", "stsr"
 	instructions from here.
	* v850.igen (ldsr, stsr): To here.  Mask out reserved bits when
 	setting PSW.
	
	* interp.c (sim_open): Set psw_mask if machine known.

Tue Sep 16 10:20:00 1997  Andrew Cagney  <[e-mail]>

	* v850-dc: Add rule to diferentiate between breakpoint and divh.
	* v850.igen (break): New instruction, breakpoint simulator.
	* v850.igen (breakpoint): Enable.  Change to a 32bit instruction.

Mon Sep 15 18:44:05 1997  Jim Wilson  <[e-mail]>

	* simops.c (Multiply64): Don't store into register zero.

Tue Sep 16 09:02:00 1997  Andrew Cagney  <[e-mail]>

	* Makefile.in (semantics.o): Add dependency.

	* sim-main.h (SAVE_1, SAVE_2): Perform backward compatible save,
 	do not adjust CIA/NIA.

Mon Sep 15 17:36:15 1997  Andrew Cagney  <[e-mail]>

	* simops.c (OP_300, OP_400, OP_70): Make behavour depend on PSW[US].
	
	* simops.c: Move "divun", "sld.bu", "divhn", "divhun", "divn",
 	"divun", "pushml" code from here to v850.igen.
	(divun): Make global.
	(type3_regs): Make global
	
	* v850.igen: Move simops.c code to here.

	* interp.c (sim_create_inferior): For v850eq set US bit by
 	default.

	* interp.c (sim_open): Don't set arch, now set by
 	sim_analyze_program.

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

Mon Sep 15 14:39:34 1997  Andrew Cagney  <[e-mail]>

	* simops.c (op_types): Move from here.
	sim-main.h: To here.

	* sim-main.h (trace_input, trace_output), simops.c: Make global.

	* simops.c (OP_60): Move "jmp" code from here.
	* v850.igen (jmp): To here.

	* simops.c (OP_60): Move "sld.bu" code from here.
	* v850.igen (sld.bu): To here.

Fri Sep 12 15:11:03 1997  Andrew Cagney  <[e-mail]>

	* v850.igen (prepare, ...): Add to v850eq architecture.

	* interp.c (sim_open): Default to v850eq.
	
	* interp.c (sim_open): Default to v850e.
	* sim-main.h (signal.h): Include.

	* v850.igen (illegal): Report/halt illegal instructions.

	* Makefile.in (SIM_EXTRA_CFLAGS): Add SIM_RESERVED_BITS.

	* configure.in: Add reserved bits option.
	* configure: Regenerate.

Thu Sep 11 08:40:03 1997  Andrew Cagney  <[e-mail]>

	* interp.c (sim_open): Use sim_do_commandf instead of asprintf.

	* sim-main.h (INSN_NAME): 

	* Makefile.in (INCLUDE): Add SIM_EXTRA_DEPS.
	(SIM_EXTRA_DEPS): Add itable.h
	(tmp-gencode): Does not depend on simops.h

	* sim-main.h (itable.h): Include.
	(MAX_INSNS, INSN_NAME): Define.

	* interp.c: Compute inttype from the interrupt_names index that
 	was passed in.

Wed Sep 10 10:25:40 1997  Andrew Cagney  <[e-mail]>

	* simops.c (trace_input): Use trace_printf instead of
 	sim_io_printf.
	(trace_output): Ditto.
	(trace_input): Only trace when TRACE_ALU_P.  Delete code
 	disasembling instruction.
	(trace_output): Only trace when TRACE_ALU_P.

Tue Sep  9 01:29:50 1997  Andrew Cagney  <[e-mail]>

	* simops.c (trace_input, trace_output): Use sim_io_printf.
	(OP_620): Pass correct argument to trace.
	(OP_E607E0): Ditto.
	(trace_input): Obtain prog_bfd, text_start et.al from simulator
 	struct.

Mon Sep  8 21:03:52 1997  Andrew Cagney  <[e-mail]>

	* v850.igen: New file.
	* v850-dc: New file.

Mon Sep  8 18:33:04 1997  Andrew Cagney  <[e-mail]>


	* sim-main.h (SEXT16): Delete, use EXTEND16.
	(SEXT8): Delete, use EXTEND8.
	(SEXT32): Delete, used?
	(SEXT40, SEXT44, SEXT64): Use UNSIGNED64 for constants, not ...LL.
	(WITH_TARGET_WORD_MSB): Define as 31. v850 little bit endian.
	
	* simops.c: Use EXTEND15 from sim-bits instead of SEXT16.

	* sim-main.h (DEBUG_TRACE, DEBUG_VALUES, v850_debug): Delete,
 	replace with TRACE_INSN_P and TRACE_ALU_P.

	* simops.c (trace_input, trace_output): Update.

	* interp.c (sim_engine_run): Delete.
	(lookup_hash): Delete.
	(sim_open): Do not fill hash table.
	(sim_trace): Delete.

Fri Sep  5 17:04:48 1997  Andrew Cagney  <[e-mail]>

	* simops.c (OP_FFFF): Use sim_engine_halt.
	(OP_12007E0): Ditto.
	(OP_10007E0): Ditto.

	* sim-main.h (struct sim_cpu): Delete member exception. Using
 	sim-engine et.al.

	* interp.c (sim_info): Do not do anything in sim-info.
	(sim_stop): Delete, replace with sim-stop.
	(sim_stop_reason): Delete, replace with sim-reason.

	* sim-main.h (WITH_WATCHPOINTS): Define.
	(WITH_MODULO_MEMORY): Define
	
	* Makefile.in (SIM_OBJS): Add sim-resume, sim-watch, sim-stop,
 	sim-reason.

	* interp.c (enum interrupt_cond_type): Delete.
	(struct interrupt_generator): Delete.
	(enum interrupt_type): Drop int_none.
	(sim_open): Initialize WATCHPOINT module.
	(sim_resume, sim_run): Rename sim_resume to sim_run.
	(sim_engine_run): Replace interrupt code with call to sim-events.
	(sim_set_interrupt): Delete.
	(sim_parse_number): Delete.

Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>

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

Thu Sep  4 18:11:37 1997  Andrew Cagney  <[e-mail]>

	* simops.c (fetch_argv): New function, fetch a arg vector from
 	simulator memory.

	* configure.in: Check for fork, execve, execv.
	* configure: Regenerate.

	* interp.c (sim_store_register, sim_fetch_register): Use H2T_4 and
 	T2H_4 for byte swapping.

	* sim-main.h, interp.c (get_word, get_half, get_byte, put_word,
 	put_half, put_byte): Delete.

	* Makefile.in (SIM_OBJS): Add sim-memopt.o module.

	* sim-main.h (load_mem, store_mem): Redefine as macros.
	(IMEM, IMEM_IMMED): New macros - fetch instructions.

	* simops.c (OP_10007E0): For SYS_read, SYS_write, SYS_open
 	transfer data via a buffer.
	(fetch_str): New function, fetch string from memory.

	* Makefile.in (SIM_OBJS): Add sim-hrw.o module.

	* interp.c (sim_open): Establish memory maps using sim-memopt.c
 	via sim_do_command.
	(sim_do_command): Print error if memory-map command is used. Call
 	sim_args_command.
	(map): Delete, replaced by sim-core.
	(sim_memory_init): Delete, replaced by sim-core.
	(sim_set_memory_map): Delete, replaced by sim-memopt.
	(load_mem): Delete, replaced by sim-core.
	(store_mem): Delete, replaced by sim-core.
	(sim_write): Delete, replaced by sim-hrw.
	(sim_read): Delete, replaced by sim-hrw.

	* sim-main.h (struct sim_state): Remove memory members, using
 	sim-core.c

Wed Sep  3 10:18:55 1997  Andrew Cagney  <[e-mail]>

	* sim-main.h: Replace SIM_HAVE_FLATMEM with mem ptr.
	* interp.c (map): Do not add to a void pointer.
	
	* Makefile.in (INCLUDE): Add sim-main.h

	* configure.in: Check for time.h
	* configure: Re-generate.

	* interp.c (struct interrupt_generator): Make time unsigned long,
 	address SIM_ADDR.
	(sim_resume): Make oldpc SIM_ADDR.
	(struct hash_entry): Make mask/opcode unsigned.

	* v850_sim.h (struct simops ): Make opcode and mask unsigned.

	* simops.c (utime.h): Include if available.
	(OP_10007E0): Check for UTIME function.
	(divun): Put parentheses around shift argument.
	(OP_640): Put parentheses around shift argument, was wrong.
	(OP_107F0): Return something.

	* interp.c (sim_parse_number): Use strtoul not strtol.
	(sim_resume): Use sim_elapsed_time_get to keep track of the time.

	* configure.in (SIM_AC_OPTION_WARNINGS): Add.
 	(SIM_AC_OPTION_ENDIAN): Set to hardwired big.
	(SIM_AC_OPTION_HOST_ENDIAN): Add.
	(AC_CHECK_FUNCS): Add utime.
	(AC_CHECK_HEADERS): Add stdlib.h, string.h, strings.h, utime.h
	configure: Regenerate.
	

	* Makefile.in (SIM_RUN_OBJS): Use nrun.o.
	(SIM_OBJS): Add sim-io.o, sim-hload.o, sim-utils.o, sim-options.o,
 	sim-config.o, sim-module.o, sim-events.o, sim-core.o,
 	sim-endian.o, sim-engine.o, sim-trace.o, sim-profile.o
	(SIM_ENDIAN, SIM_WARNGINS): Define.

	* simops.c (OP_10007E0): Use sim_io_* for transfers.

	* interp.c (sim_resume): Pass sd around.

	* simops.c (sim-main.h): Include.

	* gencode.c (write_template): Generate #include sim-main.h.
	(write_opcodes): Ditto.
	
	* interp.c (prog_bfd, prog_bfd_was_opened_p): Delete.
	(v850_callback): Ditto.
	(sim_kind, myname): Ditto.
	(lookup_hash): Pass SD. Use sim_io_error.
	(sim_set_memory_map): Pass in SD, use.
	(init_system): Pass in SD, use.
	(sim_open): Update.
	(sim_set_profile): Delete.
	(sim_set_profile_size): Delete.
	(do_interrupt): Pass in SD, use.
	(sim_info): Use sim_io_printf.
	(sim_create_inferior): Reset registers.  Set PC from prog_bfd
 	argument.
	(sim_load): Delete, use common/sim-hload.c
	(sim_size): Rename to sim_memory_init.
	(sim_write): Remove call to init_system.
	(init_system): Delete.
	(sim_set_callbacks): Delete.
	(sim_set_interrupt): Pass in SD, use.
	(start_time): Delete.
	
	* v850_sim.h: Remove everything except `struct simops' from here.
 	* sim-main.h: Move most to here.
	* gencode.c: Move #includes to here.

	* sim-main.h(struct _sim_cpu): Rename struct _state.
	(#define PC, et.al.): Update
	(v850_callback): Delete.  Replaced with SIM_DESC arg.
	(int8, uint8, int16, uint16, int32, uint32): Define types using
 	unsigned8 et.al from common/sim-types.h.
	* sim-main.h (State): Define as STATE_CPU.

Mon Sep  1 12:07:55 1997  Andrew Cagney  <[e-mail]>

	* configure.in: Check for time, chmod.
	* configure: Regenerate.
	* simops.c (SYS_time, SYS_chmod): Use HAVE_TIME, HAVE_CHMOD.
	
	* simops.c (../../libgloss/v850/sys/syscall.h): Include instead of
 	sys/syscall.h.
	(OP_10007E0): Check the existance each SYS_* macro independantly.

	* v850_sim.h (SIGQUIT, SIGTRAP): Only define if missing.

Wed Aug 27 18:13:22 1997  Andrew Cagney  <[e-mail]>

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

Tue Aug 26 10:42:38 1997  Andrew Cagney  <[e-mail]>

	* interp.c (sim_kill): Delete.
	(sim_create_inferior): Add ABFD argument.
	(sim_load): Move setting of PC from here.
	(sim_create_inferior): To here.

Mon Aug 25 17:50:22 1997  Andrew Cagney  <[e-mail]>

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

Mon Aug 25 11:31:23 1997  Andrew Cagney  <[e-mail]>

	* interp.c (sim_open): Add ABFD argument.

Fri Aug 22 10:39:28 1997  Nick Clifton  <[e-mail]>

	* simops.c (bsh): Only set CY flag if either of the bottom
	bytes is zero.
	
	* simops.c (prepare, dispose): Lower numbered
	registers go to higher numbered address.

	* simops.c (unsigned divide instructions): S bit set if result has
	top bit set.
	
	* simops.c (pushml, pushmh, popml, popmh): Lower numbered
	registers go to higher numbered address.
	
Wed Aug 20 13:56:35 1997  Nick Clifton  <[e-mail]>

	* simops.c (OP_107E0, OP_107F0, OP_307E0, OP_307F0): Use correct
	interpretation of SR bit in list18 structure.
	(divn, divun): New functions to perform N step divide functions.

Mon Aug 18 10:59:02 1997  Nick Clifton  <[e-mail]>

	* simops.c (OP_300, OP_400, OP_60, OP_70): Support variant opcodes
	with US bit set in the PSW.

Wed Aug 13 19:06:55 1997  Nick Clifton  <[e-mail]>

	* interp.c (sim_resume): Opcode functions return amount to be
	added to PC and all opcodes take a standard format in the OP[]
	array.
	
	(do_format_*): Functions removed.

	* v850_sim.h (SP, EP): New register mnemonics.
	
	* gencode.c (write_header): Functions prototypes return an
	integer.

	* simops.c: Opcode functions return amount to be added to PC.
	
	* v850_sim.h (CTPC, CTPSW, CTBP): New register mnemonics.
	
	* simops.c: Add support for v850e instructions.
	
	* simops.c: Add support for v850eq instructions.
	
Tue May 20 10:24:14 1997  Andrew Cagney  <[e-mail]>

	* interp.c (sim_open): Add callback argument.
	(sim_set_callbacks): Delete SIM_DESC argument.

Thu Apr 24 00:39:51 1997  Doug Evans  <[e-mail]>

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

Wed Apr 23 17:20:16 1997  Doug Evans  <[e-mail]>

	* interp.c (prog_bfd_was_opened_p): New static local.
	(prog_bfd): New global variable.
	(sim_open): Undo patch to add -E support.
	(sim_close): Close prog_bfd if sim_load opened it.