changelog

gdb-6.0 linux 下的调试工具

	the exponent when denormalizing.

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

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

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

        * configure.in: Use AC_EXEEXT instead of AM_EXEEXT.
	* configure: Regenerated to track ../common/aclocal.m4 changes.
	
1999-04-02  Keith Seitz  <[e-mail]>

	* sim_calls.c (POLL_QUIT_INTERVAL): Define. Used to tweak
	the frequency at which the poll_quit callback is called.
	(poll_quit_count): New global.
	(sim_io_poll_quit): Only call the poll_quit callback
	after the specified POLL_QUIT_INTERVAL.

1999-02-22  Jim Lemke  <[e-mail]>

	* dc-complex: Force expansion on all bits of field BO.
	Previously, the least-significant (prediction) bit was ignored.
	* ppc-instructions (conditional branches): Implement mpc860c0 option.
	* igen.c (gen_semantics_[ch]): Setup for mpc860c0 option.
	* psim.c (is_num, psim_options): Added parsing for mpc860c0 option.
	* interrupts.h: Added "mpc860c0_instruction_program_interrupt".
	* interrupts.c (program_interrupt): Added handling for above interrupt.

1999-02-01  Jim Blandy  <[e-mail]>

	Make the simulator compatible with the MPC750.  It would be nicer
	to make this a real multi-sim, but that's more work than we have
	time for.
	* emul_generic.c (emul_add_tree_options): Only require strict
	alignment if it was explicitly requested at configuration time.
	Don't make it the default for little-endian machines.
	* ppc-spr-table (UMMCR0, UMMCR1, UPMC1, UPMC2, USIA, UPMC3, UPMC4,
 	MMCR0, PMC1, PMC2, SIA, MMCR1, PMC3, PMC4, L2CR, ICTC, THRM1,
 	THRM2, THRM3): Plop in the MPC750 SPR registers.
	(DABR): This is weird.  This was HID5, but the PPC spec says this
 	should be DABR; why did some random processor use it for something
 	else?  The HID5 entry dates back to the original checkin of the
	simulator code in 1995, so remove it.
	* sim_calls.c (register_names): Delete this; since the user can
	now change GDB's list of register names dynamically, we can't
	pretend there's a static mapping here.
	(sim_fetch_register, sim_store_register): Call GDB's REGISTER_NAME
 	function to get the register name.  That ought to be accurate.
  	However, we're changing a compile-time dependency (using the
 	REGISTER_NAMES macro) into a link- and run-time dependency
	(calling REGISTER_NAME, which happens to be a function call on the
	PPC).

1999-01-22  Jim Lemke <[e-mail]>

	* igen.c(gen_semantics_[ch]): setup/use of new option
	(-o mpc860c0[=n]).
	interrupts.[ch](mpc860c0_instruction_program_interrupt): added.
	ppc-instructions(the four branch insn groups): detect problematic br's.
	psim.c(is_num - added, psim_options): Parse and init new option.
	These changes are currently under #ifdef WITH_OPTION_MPC860C0.

1998-12-01  Ken Raeburn  <[e-mail]>

	* hw_nvram.c (hw_nvram_bcd): Force value to fit in 0..99.

Fri Nov 20 12:17:28 1998  Andrew Cagney  <[e-mail]>

	* main.c (sim_io_poll_quit): Stub function.

	* events.c (SIM_EVENTS_POLL_RATE): Define.
	(sim_events_poll): Copy function from common/sim-events.c.
	(event_queue_init): Copy scheduling of sim_events_poll from same.

	* sim_callbacks.h, sim_calls.c (sim_io_poll_quit): New function,
 	poll the external environment.

1998-11-19  Michael Meissner  <[e-mail]>

	* ppc-instructions (is_{NaN,inf}): Use unsigned64 to get the
	fractional type, so that quiet NaN's aren't treated like
	Infinities.

Mon Sep 28 09:42:45 1998  Drew Moseley  <[e-mail]>

	* table.c (table_open): For cygwin hosts, we need to use the
 	return value from the read routine as the number of bytes to
 	process.  This apparently is due to text-mode vs binary-mode.  If
 	the mounts are done text-mode, then the size returnedby fstat()
 	may be different than the number of bytes "read" in text mode.

Sun Oct  4 00:50:47 1998  Felix Lee  <[e-mail]>

	* emul_netbsd.c (do_open): fix order-of-evaluation problem.
	(do_close): ditto.
	(do_fstat): ditto.
	(do_lstat): ditto.

1998-09-03  Michael Meissner  <[e-mail]>

	* emul_{netbsd,unix}.c: Update copyright year.

Mon Jun 29 10:57:36 1998  Michael Snyder  <[e-mail]>

	* sim_calls.c (sim_fetch_register, sim_store_register):
	return zero when nothing to do.

1998-06-26  Michael Meissner  <[e-mail]>

	* configure.in (AC_CHECK_HEADERS): Don't check for sys/mount.h.
	* configure: Regenerate.
	* emul_{netbsd,unix}.c (toplevel): No longer try to include
	sys/mount.h. It conflicts on Linux when gnu libc2 is used.

Tue May 12 12:10:33 PDT 1998  James Ingham  <[e-mail]>

	* Makefile.in: The run target depended on a target psim$(EXEEXT),
	but there was no such target, only plain psim.  So I changed the
	run target to depend on psim.

Sat May  2 01:10:12 1998  Stu Grossman  <[e-mail]>

	* aclocal.m4:  Remove defs of AM_EXEEXT and AM_CYGWIN32.  These are
	now defined in ../common/aclocal.m4, and the double definition causes
	problems with AC_SUBST of EXEEXT.
	* configure:  Regenerate.
	
Wed Apr 29 15:44:52 1998  Geoffrey Noer  <[e-mail]>

	* aclocal.m4: new file for AM_EXEEXT macro
	* configure.in: call AM_EXEEXT
	* configure: regenerate with autoconf 2.12.1.
	* Makefile.in: add EXEEXT support

Sun Apr 26 15:31:55 1998  Tom Tromey  <tromey@creche>

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

Sun Apr 26 15:19:51 1998  Tom Tromey  <[e-mail]>

	* acconfig.h: New file.
	* configure.in: Reverted change of Apr 24; use sinclude again.
	Don't call AC_C_CROSS.

Fri Apr 24 14:16:40 1998  Tom Tromey  <tromey@creche>

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

Fri Apr 24 11:18:46 1998  Tom Tromey  <[e-mail]>

	* Makefile.in (top_builddir): New macro.
	(INTLLIBS): New macro.
	(INTLDEPS): Likewise.
	(psim): Depend on INTLDEPS; link against INTLLIBS.
	* configure.in: Call CY_GNU_GETTEXT.

Wed Apr 22 14:28:48 1998  Michael Meissner  <[e-mail]>

	* configure: Regenerate with autoconf 2.12.1.

Fri Mar 13 09:25:58 1998  Andrew Cagney  <[e-mail]>

	* psim.c (psim_read_register, psim_write_register): Handle updates
 	for FPSCR.

	* registers.c (register_description): Reconize "FPSCR".

	* emul_netbsd.c (emul_netbsd_create): When FP available, enable
 	MSR FP exception mode. Do not enable FPSCR bits.
	* emul_unix.c (emul_unix_create): Ditto.

Tue Feb 17 12:48:58 1998  Andrew Cagney  <[e-mail]>

	* sim_calls.c (sim_store_register, sim_fetch_register): Pass in
 	length parameter.  Return -1.

Mon Feb  9 14:13:14 1998  Andrew Cagney  <[e-mail]>

	* ppc-instructions (fdiv, fdivs): Check for divide by zero.
	(is_invalid_zero_divide, invalid_zero_divide_operation): New
 	functions.
	
Wed Dec 10 17:38:28 1997  Andrew Cagney  <[e-mail]>

	* sim_calls.c (sim_load): Do not parse PROG using buildargv, use
 	raw value instead.

1997-11-05  Felix Lee  <[e-mail]>

	* emul_chirp.c: #ifdef HAVE_UNISTD_H

Wed Oct 15 08:50:54 1997  Andrew Cagney  <[e-mail]>

	* corefile.c (core_attach): Pad out allocated memory regions so
 	that they are always correctly aligned.
	(struct _core_mapping, core_map_attach, core_init,
 	new_core_mapping): Change free_buffer to type void*.

Mon Oct  6 18:09:26 1997  Michael Meissner  <[e-mail]>

	* sim_calls.c (zfree): Call free correctly.

Mon Sep 29 10:05:01 1997  Andrew Cagney  <[e-mail]>

	* sim_calls.c (zfree): Use free, not mfree.
	(sim_io_flush_stdoutput): Replace gdb_flush with callback ->
 	flush_stdout.

Fri Sep 26 09:50:29 1997  Andrew Cagney  <[e-mail]>

	* ppc-instructions (sraw, slw, srw): From Charles Lefurgy, Fix
 	mask extracting shift amount. Correctly condition for setting XER
 	in sraw.
 	(ldhau): From Johannes Reisinger, update rA after load.

Tue Sep  9 22:13:23 1997  Felix Lee  <[e-mail]>

	* basics.h (CONCAT*): token-pasting macros, if ALMOST_STDC,
 	for MSVC.
	* words.h: __int64 instead of long long for MSVC.

Wed Aug 27 10:24:15 1997  Andrew Cagney  <[e-mail]>

	* sim_calls.c (sim_create_inferior): Check the simulator was
 	initialized before creating inferior.

	* idecode_expression.h (ALU_END): From Charles Lefurgy - Extract
 	sign bit using 64 bit and not a 32 bit mask.

Wed Aug 27 10:15:48 1997  Andrew Cagney  <[e-mail]>

	* sim_calls.c (sim_load): From Ian Lance Taylor - free argv after
 	it has been used, not before.
	
Tue Aug 26 10:41:35 1997  Andrew Cagney  <[e-mail]>

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

Mon Aug 25 16:17:06 1997  Andrew Cagney  <[e-mail]>

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

Thu Jul  3 10:18:06 1997  Andrew Cagney  <[e-mail]>

	* ppc-instructions (PPC_INSN_INT): From Michael Thies - Monitoring
 	CR register updates dependant on RC value had logic backwards.

	* ppc-instructions (Load String Word Immediate): From Brad Parker
 	- sense of wrap test in check for overwriting RA wrong.
	(Load String Word Indexed): Ditto.
	
	* configure.in: From Erik Landry - set sim_default_model not
 	sim_model for sim-default-model option.
	* configure: Regenerate.
	
	* interrupts.c (check_masked_interrupts): Schedule a hardware
 	interrupt delivery when FP interrupts get enabled.
	(program_interrupt): Generate FP exceptions instead of aborting.
	(deliver_hardware_interrupt): Deliver a FP exception if so
 	enabled.

	* registers.h: Add definition of fpscr_vx_bits.

	* idecode_expression.h (FPSCR_END): Always update FEX and VX bits
 	in FPSCR.
	(FPSCR_END): Explicitly check for possible floating point
 	exception conditions.
	(FPSCR_BEGIN): Simplify.
	
	* ppc-instructions (Move From FPSCR): Enable.
	(Move To FPSCR Bit 1): Ditto.
	(Move To FPSCR Bit 0): Ditto.
	(Move To FPSCR Field Immediate): Ditto.
	(Move to Condition Register from FPSCR): Simplify.
	(invalid_arithemetic_operation): Generate a QNaN when invalid
 	operation exception disabled.
	
Tue May 20 10:22:50 1997  Andrew Cagney  <[e-mail]>

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

Tue Apr 22 22:36:57 1997  Mike Meissner  <[e-mail]>

	* sim_callbacks.h (error): Make declaration match gdb's.
	* main.c (error): Ditto.

Fri Apr 18 17:03:09 1997  Andrew Cagney  <[e-mail]>

	* sim_calls.c (sim_stop_reason): Simplify.  Was running implies
 	stopped/SIGINT. Exit implies a status code.

	* psim.c (cntrl_c_simulation): From main.c.  Event function that
 	halts the simulator.
	(psim_stop): New. Asynchronously schedule a stop simulator event.
	(psim_run_until_stop): Delete. Made redundant by psim_stop.

	* main.c (cntrl_c): Update.
	(cntrl_c_simulation): Moved to psim.c.

	* sim_calls.c (sim_stop): New function. Use psim_stop which
 	schedules a stop event.
	(sim_resume): Drop SIGINT handler, now in gdb/main.c.
	(sim_resume): Use psim_run as stop variable no longer needed.

Fri Apr 18 17:03:08 1997  Andrew Cagney  <[e-mail]>

	* psim.c (psim_options): Handle -E option correctly.
	(psim_usage): Document.

Thu Apr 17 03:28:03 1997  Doug Evans  <[e-mail]>

	* psim.c (psim_options): Ignore -E option (sets endianness).
	* sim_calls.c: #include bfd.h.
	(entry_point): New static local.
	(sim_load): Return SIM_RC.  New arg abfd.  Set start address from bfd.
	(sim_create_inferior): Return SIM_RC.  Delete arg start_address.

Tue Apr 15 14:57:18 1997  Ian Lance Taylor  <[e-mail]>

	* Makefile.in (INSTALL): Set to @INSTALL@.
	(INSTALL_XFORM, INSTALL_XFORM1): Remove.
	(install): Depend upon installdirs.  Use $(program_transform_name)
	directly, rather than using $(INSTALL_XFORM).
	(installdirs): New target.

Fri Apr  4 17:54:36 1997  Jim Wilson  <[e-mail]>

	* Makefile.in (tmp-hw, tmp-pk): Use for loop to eliminate duplicates
	rather than the non-portable cat -n.

Mon Apr 14 16:29:51 1997  Ian Lance Taylor  <[e-mail]>

	* Makefile.in (INSTALL): Change install.sh to install-sh.

Tue Apr  1 18:15:14 1997  Jim Wilson  <[e-mail]>

	* ppc-instructions: Change milhwu to mulhwu.

Wed Apr  2 15:38:08 1997  Doug Evans  <[e-mail]>

	* sim_calls.c (sim_open): New arg `kind'.

Wed Apr  2 14:51:17 1997  Ian Lance Taylor  <[e-mail]>

	* COPYING: Update FSF address.

Tue Mar 25 16:17:59 1997  Andrew Cagney  <[e-mail]>

	* main.c (sim_io_read_stdin): Only compile unbuffered IO code if
 	all the required features are supported by the host OS.

Tue Mar 25 12:13:02 1997  Andrew Cagney  <[e-mail]>

	* emul_bugapi.c (emul_bugapi_create): Guard against NULL images.