changelog.00

这个是LINUX下的GDB调度工具的源码

	creating entries in the hash table.

	* device.c (device_tree_find_node): Allow primative wild-card match
 	of device names with the path.

	FIXME: As mentioned earlier, the device stuff needs work to bring
 	it into line with OpenBoot.  Part of this work is rewriting the
	find_node function so that it behaves as specified in p1275.

Mon Dec 18 19:58:56 1995  Andrew Cagney  <[e-mail]>

	* emul_chrp.c (chirp_emul_write, chirp_emul_finddevice): add
 	better tracing.

	* emul_chrp.c: Change return type of emul functions to int.  Emul
 	functions either return -1 or zero so unsigned was a bit
 	dangerous.
	
	* inline.h (*), igen.c, dgen.c, *: Update INLINE macros so that
        they are paramaterised with the type of the function.  Gets around
        the problem of `static' needing to come first with `attribute'
        comming last.  Format declarations and definitions so that emacs
	doesn't get confused.

Fri Dec 15 17:06:44 1995  Andrew Cagney  <[e-mail]>

	* std-config.h (PSIM_INLINE): Add missing inline configuration
 	control for the main loop.

	* mon.c (mon_print_info): If monitoring disabled still print out
 	the number seconds used.

	* psim.c (run_until_stop): Don't monitor the cache misses when
 	monitoring is disabled.

	* configure.in (sim_mon, sim_monitor): Correct typo - sim_mon ->
 	sim_monitor for shell variable (or should that have been the other
 	way around?).

	* vm.c (vm_synchronize_context): Fix wrong test for unsuported
 	change in endian-mode.
	
	* std-config.h (WITH_REGPARM), inline.h (IDECODE_INLINE,
	SEMANTICS_INLINE): Add -DWITH_REGPARM=<n> option.  Enables the
	__attribute__((__regparm(WITH_REGPARM))) for some functions.
	configure with --enable-sim-cflags="-DWITH_REGPARAM=3" (say).
	Unfortunatly it tickles a bug (gcc?) and can't be used.

Mon Dec 18 13:36:06 1995  Michael Meissner  <[e-mail]>

	* device.c (device_tree_add_device): Make trace fprintf arguments
	type correct.
	* device_table.c (htab_decode_hash_table): Ditto.
	(htab_map_binary): Ditto.
	(htab_init_callback): Ditto.
	* vm.c (om_virtual_to_real): Ditto.

Sat Dec 16 09:54:18 1995  Michael Meissner  <[e-mail]>

	* emul_netbsd.c (emul_netbsd_create): Deal with new BFD that
	changed how big/little endian support is recorded, while remaining
	compatible with the old BFD with #ifdefs.
	* emul_chirp.c (emul_chirp_create): Ditto.
	* emul_bugapi.c (emul_bugapi_create): Ditto.

Fri Dec 15 15:55:56 1995  Michael Meissner  <[e-mail]>

	* std-config.h (MODEL_INLINE): Turn off INLINE_MODULE by default.

	* corefile.h: Delete declarations for unknown functions.
	* device.h: Ditto.
	* interrupts.h: Ditto.
	* interrupts.c: Ditto.

Thu Dec 14 18:49:34 1995  Andrew Cagney  <[e-mail]>

	* lf.c (lf_print_function_type): New function.  Munges a function
 	type so that the prefix (eg INLINE...) is inserted after the type
 	but before any `*'.

	* igen.c: Change to output functions using this.

Wed Dec 13 23:47:00 1995  Andrew Cagney   <[e-mail]>

	FIXME: Emul CHIRP does not correctly implement the find device
 	function.

	FIXME: Emul CHIRP and device do not implement device instance
 	operations.

Wed Dec 13 23:47:00 1995  Andrew Cagney   <[e-mail]>

	* options.c (options_inline): Function to output meaningful
        description of the INLINE options.

	* configure.in (inline): Replace inline magic numbers with macro
        names. Map 1->LOCALS_INLINE and 2->ALL_INLINE.

	* inline.h, inline.c: update to use inline method.

	* std-config.h (CPU_INLINE), cpu.h, inline.h, inline.c: make cpu.h
        inline always.

	* std-config.h (EVENTS_INLINE): Inline events in psim.

Wed Dec 13 22:01:21 1995  Andrew Cagney   <[e-mail]>

	* device_table.c (htab_sum_binary): DMA binaries to correct byte
        within a page.

Tue Dec 12 22:51:18 1995  Andrew Cagney   <[e-mail]>

	* psim.c (psim_merge_device_file): Change `=' to `==', was this an
        error?

Tue Dec  5 11:56:14 1995  Andrew Cagney  <[e-mail]>

	* ppc-instructions (ppc_nr_mtcrf_crs, ppc_branch_conditional_name,
 	ppc_function_unit_name): Simplify by declaring these arrays as
 	pure and simple static (instead of STATIC_MODEL).

Tue Dec  5 00:45:34 1995  Andrew Cagney  <[e-mail]>

	* sim_calls.c (sim_create, sim_load), main.c (main), psim.c: Pass
        an options device into psim_create() so that options can be merged
        into the tree.

	* device.c (*add*): Change semantics so the add functions only add
        when the new device (or property) doesn't already exist.  This
        allows merging of options and data.

Mon Dec  4 17:12:13 1995  Andrew Cagney  <[e-mail]>

	* Makefile.in (BASICS_H): Didn't include basics.h in the list of
        header files to depend on.

Mon Dec  4 17:12:13 1995  Andrew Cagney  <[e-mail]>

	* std-config.h: (*_MODULE): Extend the <module>_inline macro's so
        that they also allow control over static functions.  Rewrite
        document to reflect this.

	* std-config.h: (INLINE): Simplify definition, the above and
        earlier changes to igen.h eliminate the need to be defensive about
        enabling the inline of static functions.

	* std-config.h: (SIM_ENDIAN_INLINE, BITS_INLINE): Document limited
        suport for inlineing of modules for all callers.  Adjust relevant
        macro's so that DEFAULT_INLINE will enable this.

	* basics.h: Re-order #includes and definitions so that c-code for
        basic include files does not call functions delcared in later
        #includes.

	* basics.h (__attribute__), sim_callbacks.h: Move attribute macro
        to basics.h and add hack (include <stdio.h>) to try and bring that
        and other possible conflicting macros into scope much earler.

	* sim-endian.h,c (SIM_ENDIAN_INLINE) bits.h,c (BITS_INLINE):
        Change to use the updated inline definitions.  If enabled
        immediatly include the corresponding c-code so that it will inline
        for all modules.

	* inline.h, inline.c (SIM_ENDIAN_INLINE, BITS_INLINE): Remove
        these cases, moved to module specific header files.

Sat Dec  2 18:37:51 1995  Andrew Cagney  <[e-mail]>

	* vm.c, vm_n.c: Fix htab code.

	* vm.c (vm_data_map_read_buffer): Was using EA not RA when reading
        the data from core.

	* device.c: Fix htab create code.

Fri Nov 24 23:10:09 1995  Andrew Cagney  <[e-mail]>

	* bits.h, bits.c (EXTRACTED): Convert to function, fix - had &&
        instead of &.

	* sim-endian.h (SWAP_N), sim-endian-n.h, sim-endian.c: How
        embarasing - fix yet another bug in the swap code!  Simplify
        everything by using more functions. Add host to big-endian byte
        swapping support.

Fri Nov 24 23:10:09 1995  Andrew Cagney  <[e-mail]>

	* devices.h, devices.c: delete, replaced by the files
        device_table.[ch] and device.[ch].
	* device_tree.h, device_tree.c: ditto

	* device_table.h, device_table.c: New files.  Contain a table of
        devices.

	* device.h, device.c, Makefile.in, std-config.h (DEVICE_INLINE),
        options.c (print_options): New files.  Define the device object
        along with any attached properties.

	* device_tree.h, device_tree.c: Update to use new device object.
        For convenience, change the printd functions into device_tree_add
        functions.

	* psim.c (create_*_tree): Use new device_tree create functions.

	* corefile.h, corefile.c corefile-n.h (core_n.h): Update to use
        the new device.h / device_table.h interface.  Rename core_n.h to
        corefile-n.h to be consistent with other n files.

	* Makefile.in (run): add corefile-n.h to dependencies for
        corefile.

	* basics.h (device_instance), device.h, device.c, device_table.h,
        device_table.c: Add the concept of a device instance and operators
        on these instances - corresponds to ihandle in OpenBoot speak.
        Don't yet implement it.

Tue Nov 14 12:27:08 1995  Andrew Cagney  <[e-mail]>

	* emul_generic.h, emul_generic.c (emul_syscall_enter,
 	emul_syscall_exit): rename from emul_enter_call /
 	emul_exit_call. As only used by emul_do_system_call simplify
 	associated code.

	* os_emul.h, os_emul.c, emul_generic.h: Correct and fill an
 	os_emul interface.

	* os_emul.c, emul_bugapi.h, emul_bugapi.c, Makefile.in: Add
 	preliminary hooks for a kernel mode rom emulation.
	
	* cap.h (new), cap.c (new): Capability data base.  Some emulations
 	pass object identifiers (capabilities?) to/from the simulated code
 	(for instance the phandle in OpenBoot).  The cap object is able to
 	check/map between internal and external (target program)
 	representations of each identifier.
	
	* os_emul.c, emul_chirp.h, emul_chirp.c, Makefile.in: Add
 	preliminary hooks for a kernel mode IEEE-1275 emulation.

	* cpu.h, cpu.c (cpu_create, cpu_os_emulation, cpu): Add os_emul to
 	list of arguments passed in when creating a cpu.  Grant access to
 	the element.

	* std-config.h (OS_EMUL_INLINE), options.c (print_options),
	inline.h, inline.c: New to allow control over inline of
	corresponding code files.

	* ppc-instructions (instruction_call): Add illegal instruction to
 	call the instruction-call emulation handler.
	
	* interrupts.c (system_call_interrupt): Call renamed
        os_emul_system_call function().

	* emul_netbsd.c: Update to interface to generic emulation.  Since
        all its functions are called via a table don't worry about any
        inline.

	* emul_generic.h, emul_generic.c, spa-*(delete): Remove references
        and code for spa, no longer to be used.

	* psim.c (create_chirp_device_tree): Fill out what was previously
        the openboot create function so that it starts to create a full
        OpenBoot device tree.

Tue Nov 28 21:48:06 1995  Andrew Cagney  <[e-mail]>

	* debug.h, debug.c: pte trace is made redundant by htab trace,
        delete it.  Add vm to list of options.  Simplify tracing output so
        lines are not as long.

Tue Nov 14 12:27:08 1995  Andrew Cagney  <[e-mail]>

	* events.h, events.c (event_queue_init), psim.c (psim_init): (re)
 	initialize the event queue.






Tue Nov 28 13:38:26 1995  Michael Meissner  <[e-mail]>

	* sim-endian.h: Look at WORDS_BIGENDIAN to determine if the host
	is big endian or little endian.  For SWAP_n, use htonl/htons if
	host is little endian, not big endian and if WITH_NTOH is defined.

	* configure{,.in} (--enable-sim-model-issue): Instead of defining
	0/1, define it to be MODEL_ISSUE_{PROCESS,IGNORE}.  Add
	AC_C_BIGENDIAN to determine if the host is big endian or not.
	* config.in: Regenerate.

	* std-config.h (WITH_MODEL_ISSUE): Default to 0.
	(CURRENT_MODEL_ISSUE): Reference WITH_MODEL_ISSUE, and if that is
	0, use current_model_issue.
	(MODEL_ISSUE_{PROCESS,IGNORE}): Define as -1/1.

	* psim.c (current_model_issue): New global variable.

	* cpu.c (cpu_create): Use CURRENT_MODEL_ISSUE > 0 instead of
	WITH_MODEL_ISSUE.
	(cpu_{init,halt}): Ditto.
	* mon.c (mon_print_info): Ditto.
	* ppc-instructions (PPC_INSN_* macros, branch handling): Ditto.

	* mon.c (mon_print_info): Print instructions/second if verbose > 0,
	rather than > 1.

	* main.c (main): Set current_model_issue to MODEL_ISSUE_PROCESS if
	the -I switch is used.
	* sim_calls (sim_open): Ditto.

	* ppc-instructions (model support): Add support for determining
	when we don't have enough writeback slots.  Add tracing for the
	beginning of each cycle.

Mon Nov 27 17:46:33 1995  Michael Meissner  <[e-mail]>

	* mon.c: Check for whether to include sys/types.h and sys/time.h.

	* configure.in: Check for include files sys/types.h and
	sys/time.h.
	* configure: Regenerate.
	* config.in: Regenerate.

	* cpu.h (CONST_ATTRIBUTE): Define as __attribute__((__const__)) if
	not already defined.
	(cpu_system): Use CONST_ATTRIBUTE, so that when we're not inlining
	the world, the optimizer has a fair chance of CSE'ing function
	calls.
	(cpu_{monitor,nr,registers,model}): Ditto.

	* std-config.h (MODEL_INLINE): If not defined, define as 1 if
	DEFAULT_INLINE is non-zero, 0 otherwise, rather than just the
	value of DEFAULT_INLINE.

Fri Nov 24 11:24:34 1995  Michael Meissner  <[e-mail]>

	* lf.h (__attribute__): If not GCC and at least 2.7.0, define as
	nothing.
 	(lf_printf): Add printf __attribute__, so the compiler will
	automatically check the format string.

	* configure{,.in} (--enable-sim-icache): If argument is define,
	add -R to flags passed to igen.

	* igen.c (stdlib.h): Include if the system supplies one.
	(semantics_use_cache_struct): New global for -R flag to say
	semantics is to use the cache structure directly rather than