changelog.00

这个是LINUX下的GDB调度工具的源码

	* vm.c (om_virtual_to_real): Print pte_word_{0,1} so the compiler
	doesn't complain that they're unused.

	* vm_n.h (vm_data_map_read_N): Delete unused variable rval.
	
Mon Nov  6 23:15:54 1995  Andrew Cagney  <[e-mail]>

	* sim-endian.c (ppc-endian.c), sim-endian.h (ppc-endian.h):
        renameed.  These files are target independant.
	* Makefile.in, basics.h: update for new name.

	* sim-endian.h (SWAP_N), sim-endian.c (_SWAP_1): Rename existing
        SWAP_<N> to _SWAP_<N> so that sim-endian.h can contain SWAP_N
        macro's as required.

	* sim-endian.c, sim-endian-n.h (new file): Move endian code into a
        debugable header file.

	* ppc-instructions (Byte-Reverse): Enable byte reverse
        instructions using SWAP_N macros.

Mon Nov  6 10:39:28 1995  Michael Meissner  <[e-mail]>

	* Makefile.in (config.status): Remove references to config.make
	and config.hdr.

	* config.{make,hdr}: Delete, no longer used.
	* build-psim: Ditto.

Mon Nov  6 20:49:56 1995  Andrew Cagney  <[e-mail]>

	* sim_calls.c (sim_open): Fix parsing of `target sim' options.

	* device_tree.c (device_tree_add_string): Wasn't saving the value
 	of the string being entered into the tree.

	* psim.c (create_filed_device_tree): Not terminating string device
 	names with a null.
	
	* psim.c (psim_create): Use `env' instead of
 	`environment-architecture' to be consistent with configure.
  	Reconize user/uea, virtual/vea and operating/oea.

Sat Nov  4 12:29:45 1995  Fred Fish  <[e-mail]>

	* core.c:  Rename to corefile.c
	* core.h:  Rename to corefile.h
	* inline.c: Include corefile.h, renamed from core.h.
	* cpu.h: Include corefile.h, renamed from core.h
	* vm.c: Include corefile.h, renamed from core.h
	* corefile.c: Include corefile.h rather than core.h
	* README.psim (KNOWN PROBLEMS): Change core.* references to corefile.*
	references.
	* Makefile.in (CPU_H): Change core.h to corefile.h
	(vm.o):  Change dependency to corefile.h
	(LIB_SRC): Change core.c to corefile.c.
	(LIB_OBJ): Change core.o to corefile.o.
	(corefile.o):  Change dependencies to corefile.c, corefile.h.

Fri Nov  3 11:37:24 1995  Michael Meissner  <[e-mail]>

	* ppc-instructions (data cache instructions): Make all data cache
	instructions nops instead of invalid instructions.

	* Makefile.in (CONFIG_CFLAGS): Add ALIGNMENT_CFLAGS and
	TIMEBASE_CFLAGS which weren't included.

Thu Nov  2 08:54:04 1995  Michael Meissner  <[e-mail]>

	* Makefile.in: Uncomment built file dependencies.
	
	* configure.in: Rewrite --enable-sim switch handling to use the
	autoconf builtins so it works correctly if the configure or
	Makefile.in files are modified and make decides to rebuild
	Makefile.  Also document all of the --enable-sim switches
	supported.  Check whether getrusage and sys/resource.h are
	supported.
	* config.in: Regenerate.
	* configure: Regenerate.
	* Makefile.in: Add support for all of the variables set with
	--enable-sim switches.

	* Makefile.in (clean): make clean now removes all built sources as
	well.
	
	* cpu.c: Use HAVE_STRING_H, HAVE_STRINGS_H, HAVE_UNISTD_H,
	HAVE_TIME_H, HAVE_SYS_TIMES_H, HAVE_SYS_RESOURCE_H defined in
	the generated config.h.
	* debug.c: Ditto.
	* device_tree.c: Ditto.
	* devices.c: Ditto.
	* dgen.c: Ditto.
	* emul_netbsd.c: Ditto.
	* igen.c: Ditto.
	* lf.c: Ditto.
	* misc.c: Ditto.
	* psim.c: Ditto.
	* registers.c: Ditto.
	* sim_calls.c: Ditt.
	* table.c: Ditto.


	* main.c (main): Call psim_print_info with verbose == 2.

	* mon.c (mon_print_info): Align the cpu number and number of
	instructions fields.  Do not print an instruction category if the
	CPU did not execute any of those instructions.  Print out number
	of reads and writes.  If getrusage is supported, print out number
	of simulated instructins per second.
	
	* configure.in: Add support for --enable-sim-opcode=stupid.
	* configure: Regenerate.

Wed Nov  1 23:46:59 1995  Andrew Cagney   <[e-mail]>

	* std-config (INLINE_DEVICE_TREE): Don't inline either of
        device_tree.c or devices.c.  There is no significant gain.

	* configure.in, Makefile.in: add --enable-sim-icache=[0-9]* and
 	IGEN_ICACHE macro.
	
Wed Nov  1 23:46:59 1995  Andrew Cagney   <[e-mail]>

	* igen.c (main), misc.h (target_a2i, i2target), misc.c: Add
        functions to convert between target and igen internal bit numbers.
        Make IO go through these functions. Add -b (bit size) and -h (high
        bit nr) options to igen.  Typical usage would be: ./igen -b 16 -h
        15 for a 16 bit instruction format with the msb given a number 15.

Wed Nov  1 22:17:32 1995  Andrew Cagney   <[e-mail]>

	* dgen.c (main): Was outputting optarg even when it was NULL.

Tue Oct 31 23:48:33 1995  Andrew Cagney   <[e-mail]>

	* vm_n.h (vm_data_map_load_N, vm_data_map_store_n), debug.h,
        debug.c: Add tracing of load/store unit (virtual) with -t
        load-store.

Tue Oct 31 21:44:01 1995  Andrew Cagney   <[e-mail]>

        * std-config.h (WITH_ENVIRONMENT): Add USER_ENVIRONMENT which does
        not include things such as the time base and events.

	* interrupt.c, sim_calls.c, cpu.h, vm.c, configure.in: Add UEA to
 	all environment switches for above.

	* psim.c (psim_create): ditto - new device tree node name is
        /options/environment-architecture with values user, virtual and
        operating.

Tue Oct 31 21:31:32 1995  Andrew Cagney   <[e-mail]>

	* ppc-opcode-stupid: Third example of use of opcode table - this
        one expands all mtspr/mfspr and branch instructions.  Appears to
        give about a 10% gain in performance if everything enabled.  Also
        takes about 150mb of swap to build.

Wed Nov  1 10:49:48 1995  Michael Meissner  <[e-mail]>

	* emul_netbsd.c (do_exit): Print arguments and close parenthesis
	if tracing, since exit doesn't go through emul_exit_call.
	(do_read): Print arguments if tracing.
	(do_write): Ditto.
	(do_open): Ditto.
	(do_break): Ditto.
	(do_kill): Ditto.
	(do_dup): Ditto.
	(do_sigprocmask): Replace trace with printing arguments if
	tracing.
	(do_ioctl): Print arguments if tracing.
	(do_umask): Ditto.
	(do_dup2): Ditto.
	(do_fcntl): Ditto.
	(do_gettimeofday): Ditto.
	(do_getrusage): Ditto.
	(do_fstatfs): Ditto.

	* filter_filename.c: New file to provide filter_filename to strip
	the directory prefix from a file.
	* filter_filename.h: New include file to declare filter_filename.

	* debug.h: Include filter_filename.h.
	(TRACE,DTRACE,ERROR): Use filter_filename on __FILE__.

	* misc.h: Include filter_filename.h.
 	(ASSERT): Use filter_filename on __FILE__.

	* igen.c (lf_print_my_prefix): Use filter_filename on the filename
	argument.

	* Makefile.in: Add filter_filename support.

	* ppc-instructions (dcbi, icbi): Make these NOPs rather than
	invalid instructions.

	* configure.in: Add support for more --enable-sim-* switches.
	Use config.make and config.hdr to write to Makefile and config.h
	respectively.  Don't rewrite Makefile, just append to it.
	* configure: Regenerate.
	* config.{make,hdr}: New shell scripts.
	
	* Makefile.in: Remove all variables set by configure.in.
	(psim.o): Depend on $(BUILT_SRC) also.

	* emul_netbsd.c (do_gettimeofday,do_getrusage): When comparing an
	integer, use 0, not NULL.

Tue Oct 31 15:20:04 1995  Michael Meissner  <[e-mail]>

	* configure.in: Add support for --enable-sim-inline,
	--enable-sim-bswap, --enable-sim-cflags, --enable-sim-complex,
	--enable-sim-switch, --enable-sim-duplicate, --enable-sim-filter,
	and --enable-sim-endian switch to control various Makefile
	variables.
	* configure: Regenerate from configure.in.
	* Makefile.in: Add various Make variables that the various
	switches alter.

	* std-config.h (DEFAULT_INLINE): Don't set this to 2 if using GCC
	and optimizing by default.

Fri Oct 27 19:26:27 1995  Andrew Cagney  <[e-mail]>

	* bits.h (ROTL32, ROTL64): Were functions, made them macros, now
 	make them functions again.  Appears 2.6.3 is confused by just a
 	macro.

Thu Oct 26 18:31:58 1995  Andrew Cagney  <[e-mail]>

	* ppc-endian.c (SWAP_8): Fix 8 byte swap!

	* psim.c (psim_create): Not correctly checking that runtime
 	configuration of things like ENDIAN, ENVIRONMENT and ALIGNMENT
 	matched the compiled in ones.

	* debug.h (ITRACE), igen.c: Tidy up more tracing flags -
 	trace_semantics is now different to trace_idecode, the former
 	checks the cache.
	
Tue Oct 24 21:54:13 1995  Andrew Cagney  <[e-mail]>

	* ppc-instructions (mtsrin): Missing instruction
	* ppc-instructions (mfsrin): Missing instruction
	* ppc-instructions (eieio): Missing instruction

Tue Oct 24 20:55:29 1995  Andrew Cagney  <[e-mail]>

	* build-psim: New shell script - see internals for usage,
 	simplifies the process of building custom simulators.

Mon Oct 23 23:48:59 1995  Andrew Cagney  <[e-mail]>

	* std-config.h (SEMANTICS_INLINE): Tidy up notes on each of the
        INLINE macros.  Make SEMANTICS_INLINE == 1 if DEFAULT_INLINE == 2.
        Don't use DEFAULT_INLINE to define REGISTERS_INLINE DEVICES_INLINE
        DEVICE_TREE_INLINE or INTERRUPTS_INLINE as none of these are on
        the instruction or data critical paths.
  	
	* FIXME: devices.c/emul_netbsd.c would benefit (slightly) from
 	the inclusion of device_tree.c/emul_generic.c.

Mon Oct 23 00:31:50 1995  Andrew Cagney  <[e-mail]>

	* os_emul.[hc], emul_generic.[hc], emul_netbsd.[hc]: replace
        system.[hc].  Start of suport for multiple emulations and
        emulation state (os_emul object).

	* emul_generic.[hc]: Start of code to implement proper system call
	tracing (from spy).

Sun Oct 22 21:33:51 1995  Andrew Cagney  <[e-mail]>

	* cpu.h, cpu.c (cpu_init): New function, zero the registers before
        the processor is started. Fixes problem of registers being
        undefined when restarting from within gdb.

	* cpu.h, cpu.c (cpu_flush_icache): New function, flushes the
        instruction cache (if present).  Fixes problem of cpu caching gdb
        breakpoint instructions.

	FIXME: PSIM sometimes aborts calling error(), it should instead
 	call sim_error() say which takes care of housekeeping such as
 	saving the CIA before calling error.
	
	* NOTE: cpu_flush_cache() instead of cpu_synchronize_context() is
 	used when restarting a simulation because the latter has the
 	unwanted side effect (well I as a kernel hacker think it is) of
 	performing an isync when the instruction stream doesn't contain
 	one.

Sun Oct 22 19:27:48 1995  Andrew Cagney  <[e-mail]>

	* mon.h (new), mon.c (new), std-config.h (WITH_MON): Performance
        monitoring module. Counts both instructions issued and
        load/stores.

	* NOTE: mon does not contain to count instruction loads as this
 	information is already available from the mon_issue() hook.

	* igen.c (lf_print_c_semantic), vm_n.h: Add counting code.

	* psim.h, psim.c (psim_create), cpu.h, cpu.c (cpu_create): Attach
        a common monitor to each of the cpus. Delete
        cpu_increment_number_of_insns() and cpu_get_number_of_insns()
        replaced by copied code in mon.[hc].

Sun Oct 22 18:42:45 1995  Andrew Cagney  <[e-mail]>

	* sim_calls.c, main.c, psim.c (psim_create): always create
        `WITH_SMP' cpus.  The actual number of CPU's active in a
        simulation run is taken from the device node: /init/smp (an
        integer). WITH_SMP changed to 2 (remember to put it back to 0).

Fri Oct 20 17:26:54 1995  Andrew Cagney  <[e-mail]>

	* system.c: More system call emulation.  If code appears NetBSD
 	specific, make conditional to being compiled on a NetBSD system
 	(sigh).

Wed Oct 18 23:02:20 1995  Andrew Cagney  <[e-mail]>
	
	* Makefile.in, gen.c(delete), igen.c(new), dgen.c(new),
 	lf.[ch](new), table.[ch](new): Split into two generators - igen
 	that outputs the instruction tables and dgen that outputs the spr
 	tables.  Add -f (filter out) flag to igen to filter out certain
 	instructions (ex 64 bit ones) from the created tables.  Include
 	$(LIBIBERTY_LIB) in link options in case host lacks some libc
 	functions.

	* NOTE: igen, since it was originally written for the
 	PowerPC/RS6000, things the MSB is 0 and the LSB is 63{31}.
	
	* Makefile.in, std-config.h, ppc-cache-rules(new),
 	ppc-opcode-complex(new), ppc-opcode-simple(new): (for igen) Create
 	cache-rule and opcode-rule tables from macros found std-config.h.
 	Delete corresponding macro's from std-config.h.
  	
	* igen.c (gen_itable_c, gen_itable_h), Makefile.in: code to output
 	an table of all the instructions.  Code to output a type
 	enumerating all the instructin names.

	* igen.c(lf_print_c_semantic): Move call to increment instruction
 	counter so that it occures _after_ the instruction has been fully
 	valid