[deliverable/binutils-gdb.git] / gdb / ChangeLog

Mon Mar 24 19:43:16 1997  Geoffrey Noer  <noer@cygnus.com>

	* symtab.c (find_pc_symtab): change to support the case
	where the objfile is reordered and contains both coff and
	stabs debugging info (continue on if a psymtab isn't found).

Sun Mar 23 16:19:20 1997  Mark Alexander  <marka@cygnus.com>

	Fixes from Peter Schauer:
	* config/mips/tm-mips.h (REGISTER_CONVERT_TO_TYPE,
	REGISTER_CONVERT_FROM_TYPE): Swap words if target, not host,
	is big-endian and if registers are 32 bits.
	* mips-tdep.c (mips_print_register, mips_extract_return_value,
	mips_store_return_value): Fix floating-point word-order problems on
	little-endian targets introduced by changes of Mar 21.

Sun Mar 23 15:43:27 1997  Stan Shebs  <shebs@andros.cygnus.com>

	* remote.c (target_resume_hook, target_wait_loop_hook): New
 	globals.
 	(remote_resume, remote_wait): Use them.
	* d10v-tdep.c: Set the above hooks.
	(tracesource): New GDB variable, controls source display in
 	traces.
	(display_trace): Find and display source line if requested.
	(trace_info): Mention empty trace buffer if appropriate.
	(tdisassemble_command): Robustify argument handling.

	* configure.host: Remove extra bogus Linux case.

Sat Mar 22 16:41:35 1997  Fred Fish  <fnf@cygnus.com>

	* remote-sim.c (simulator_command): Add comment about dealing with
	NULL or empty args.
start-sanitize-tic80
	* Makefile.in (tic80-tdep.o): Add target.
	* configure.tgt: Add tic80 case.
	* tic80-tdep.c: New file.
	* config/tic80/{tic80.mt, tm-tic80.h}: New files.
end-sanitize-tic80

Sat Mar 22 02:48:11 1997  Peter Schauer  (pes@regent.e-technik.tu-muenchen.de)

	* c-exp.y (yylex):  Handle nested template parameter lists.
	* symtab.c (decode_line_2):  Fix test for valid choice number.

Fri Mar 21 19:10:05 1997  Mark Alexander  <marka@cygnus.com>

	* mips-tdep.c (mips_push_arguments): On non-EABI architectures,
	copy first two floating point arguments to general registers, so that
	MIPS16 functions will receive the arguments correctly.
	(mips_print_register): Print double registers correctly on
	little-endian hosts.
	(mips_extract_return_value): Return double values correctly
	on little-endian hosts.

	* mdebugread.c (parse_procedure): Adjust address of procedure relative
	to address in file descriptor record; this accounts for constant
	strings that may precede functions in the text section.  Remove
	now-useless lowest_pdr_addr from argument list and all calls.

Fri Mar 21 15:36:25 1997  Michael Meissner  <meissner@cygnus.com>

	* configure.tgt (powerpc*-{eabi,linux,sysv,elf}*): Determine
	whether the simulator will be built by whether the Makefile in the
	simulator directory was built.

	* configure.in (--enable-sim-powerpc): Delete switch.
	* configure: Regenerate.

Thu Mar 20 20:52:04 1997  Jeffrey A Law  (law@cygnus.com)

	* mn10200-tdep.c (mn10200_analyze_prologue): Look for save of "a1"
	in the prologue too.

	* remote-sim.c (gdb_os_vprintf_filtered): Fix to work with non-ANSI
	compilers.
	(gdb_os_evprintf_filtered): Similarly.
	
Wed Mar 19 16:13:22 1997  Geoffrey Noer  <noer@pizza.cygnus.com>

	New UnixWare 2.1 configuration
	* config/i386/i386v42mp.mt: new
	* config/i386/i386v42mp.mh: new
	* config/i386/tm-i386v42mp.h: new
	* config/i386/nm-i386v42mp.h: new
	* configure.tgt: added new entries
	* configure.host: added new entries

start-sanitize-gdbtk
Wed Mar 19 15:16:17 1997  Martin M. Hunt  <hunt@onions.cygnus.com>

	* Makefile.in:  Install gdbtcl dir instead of gdbtk.tcl.
	
	* gdbtk.c: Added some ifdefs for Windows.  Changed GDBTK_FILENAME
	to GDBTK_LIBRARY, which is now a path to search.
	(gdb_path_conv): New function.  Convert Cygwin32 pathname to
	DOS-style pathname.

	* {aclocal.m4,configure.in}: Changes for Windows builds.

	* configure: Rebuilt.

end-sanitize-gdbtk	
Mon Mar 17 17:52:00 1997  J.T. Conklin  <jtc@cygnus.com>

	* dsrec.c (load_srec): Print leading zeroes when printing section
 	addresses.

Mon Mar 17 15:00:16 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

	* remote-sim.h: Delete - moved to ../include/remote-sim.h.
 	
	* Makefile.in (remote_utils_h): Update path to remote-sim.h.

Fri Mar  7 20:55:28 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>

	* remote-sim.c (flush_stdout, write_stderr, flush_stderr,
 	vprintf_filtered, evprintf_filtered): Callbacks that accept
 	varargs.
	
Sat Mar 15 00:50:46 1997  Peter Schauer  (pes@regent.e-technik.tu-muenchen.de)

	* breakpoint.c (insert_breakpoints, watchpoint_check,
	bpstat_stop_status):  Do not disable watchpoints going out of scope.
	(insert_breakpoints):  Make sure that the current frame is valid
	before calling find_frame_addr_in_frame_chain.

	* top.c (setup_user_args):  Handle quotes and backslashes.
	(print_gdb_version):  Update copyright year.

Fri Mar 14 15:44:03 1997  Ian Lance Taylor  <ian@cygnus.com>

	* Makefile.in (elfread.o): Depend upon elf-bfd.h and elf/mips.h.

start-sanitize-gdbtk
Fri Mar 14 10:01:29 1997  Tom Tromey  <tromey@cygnus.com>

	* configure: Regenerated.
	* configure.in (LIBS): Re-reverse order of TCL_LIBS and TK_LIBS.

end-sanitize-gdbtk
Thu Mar 13 22:51:00 1997  Dawn Perchik  <dawn@cygnus.com>

	* utils.c (pollquit, notice_quit): If _WIN32, limit test for
	cntl-C to wingdb.
	(initialize_utils): If _WIN32, don't call ScreenRows and ScreenCols 
	except under wingdb.  (Contributed by Martin Hunt).

Thu Mar 13 12:40:49 1997  Tom Tromey  <tromey@cygnus.com>

	* configure: Regenerated.
	* configure.in: Run AC_CONFIG_AUX_DIR before AC_CANONICAL_SYSTEM.

Thu Mar 13 11:00:22 1997  Doug Evans  <dje@canuck.cygnus.com>

	* remote-sim.h (sim_state, SIM_DESC): New types.
	(sim_open): Return a `descriptor' as result.
	(*): New argument of descriptor result from sim_open.
	* remote-sim.c (gdbsim_desc): Renamed from gdbsim_open_p.
	(gdbsim_open): Record result of sim_open in gdbsim_desc.
	Pass argv list to sim_open, argv[0] = pseudo program name.
	(*): Pass gdbsim_desc to sim_foo fns.

Wed Mar 12 14:40:06 1997  Tom Tromey  <tromey@cygnus.com>

	* config.in: Regenerated.

	* acconfig.h (START_INFERIOR_TRAPS_EXPECTED, sys_quotactl,
	HAVE_HPUX_THREAD_SUPPORT): Define.

start-sanitize-gdbtk
Wed Mar 12 14:29:52 1997  Tom Tromey  <tromey@cygnus.com>

	* gdbtk.c (x_event): Use Tcl_DoOneEvent, TCL_DONT_WAIT,
	TCL_ALL_EVENTS.

	* configure: Regenerated.
	* configure.in (ENABLE_GDBTK): Put TCL_LIBS after TK_LIBS in
	LIBS.

end-sanitize-gdbtk

Tue Mar 11 07:25:27 1997  Mark Alexander  <marka@cygnus.com>

	First cut at supporting simulators in gdbserver:

	* configure, configure.in: Allow gdbserver to be configured
	for cross-target environments.
	* gdbserver/Makefile.in: Add simulator support.
	* gdbserver/configure.in: Eliminate assumption that host == target.
	Simplify using gdb/configure.tgt and gdb/configure.host.
	Fix other minor configuration errors.
	* gdbserver/low-sparc.c: Fix compile error.
	* gdbserver/remote-utils.c: Eliminate assumption that registers
	and addresses are four bytes.  Fix minor compile errors and warnings.
	* gdbserver/server.c: Rewrite numerous instances of identical code
	for starting inferior processes to call new function start_inferior.
	Eliminate assumption that registers and addresses are four bytes.
	* gdbserver/server.h: Add missing prototypes to eliminate compiler
	warnings.
	* gdbserver/low-sim.c: New file to mate gdbserver with simulators.
	* config/mips/vr5000.mt: Add Vr5000 simulator support to gdbserver.
	* config/i386/linux.mh: Eliminate gdbserver support as a first step
	in moving such support from host to target makefile fragments.
	* config/i386/linux.mt: Move gdbserver support here from linux.mh.

Mon Mar 10 12:27:47 1997  Michael Snyder  <msnyder@cleaver.cygnus.com>

	* symtab.h (INIT_SAL): New macro to initialize symtab_and_line, 
	to insure consistant initialization of unused fields to zero.
	* symtab.c: replace initializations of sals with new macro INIT_SAL.
	* breakpoint.c: ditto.
	* infrun.c: ditto.
	* infcmd.c: ditto.
	* source.c: add call to INIT_SAL macro.

Sat Mar  8 00:16:37 1997  Peter Schauer  (pes@regent.e-technik.tu-muenchen.de)

	* sparc-tdep.c (isbranch):  Always handle v9 branch instructions,
	they might get used on 32 bit targets as well.

Wed Mar  5 19:34:09 1997  Bob Manson  <manson@charmed.cygnus.com>

	* remote-mips.c (mips_exit_debug): Some IDT boards don't
	send the full exit string.

Wed Mar  5 12:59:27 1997  Jeffrey A Law  (law@cygnus.com)

	* mn10200-tdep.c (mn10200_push_arguments): Handle new calling
	conventions.
	(mn10200_store_struct_return): Likewise.

Tue Mar  4 10:31:02 1997  Mark Alexander  <marka@cygnus.com>

	* mips-tdep.c (mips_fetch_instruction): New function; replace
	common code throughout with calls to it.
	(mips_find_saved_regs): Examine MIPS16 entry instruction to determine
	correct saved addresses of $s0 and $s1.
	(mips_find_saved_regs, mips16_heuristic_proc_desc):  Use MIPS_REGSIZE
	instead of hardcoded 4.
	(mips16_skip_prologue): Handle extended instructions correctly.

Mon Mar  3 12:29:20 1997  Doug Evans  <dje@canuck.cygnus.com>

	* defs.h (LONGEST): Move #ifndef LONGEST to outside.
	Try BFD_HOST_64_BIT if ! CC_HAS_LONG_LONG.

Thu Feb 27 18:54:11 1997  Mark Alexander  <marka@cygnus.com>

	* mips-tdep.c (IS_MIPS16_ADDR, MAKE_MIPS16_ADDR, UNMAKE_MIPS16_ADDR):
	New macros for testing, setting, and clearing bit 0 of addresses.
	Change numerous bits of code where bit 0 was being manipulated
	to use these macros.

Thu Feb 27 14:12:41 1997  Mark Alexander  <marka@cygnus.com>

	* remote-mips.c: Put back the form feeds.

Thu Feb 27 12:04:24 1997  Mark Alexander  <marka@cygnus.com>

	* remote-mips.c: Remove form feeds (^L) from source.
	(mips_initialize): LSI PMON doesn't support 'set regsize' command.
	(pmon_wait): Don't need to exit and re-enter debug mode on LSI
	PMON after a continue; it causes target program misbehavior.
	(mips_fetch_register): Don't fetch unsupported registers; this
	cuts down on wasted serial traffic.

Thu Feb 27 09:38:16 1997  Stu Grossman  (grossman@critters.cygnus.com)

	* configure.in configure (HPUX/OSF thread support):  Enable this
	only when running GCC, since HP's thread header files use ANSI C
	which is not supported by their default compiler.

	* configure.host (i[3456]86-*-windows):  Disable long long
	support for WinGDB.  Add mswin to configdirs.
	* configure.in configure:  Move calls to configure.host and
	configure.tgt to the top of configure.in to allow them to set
	config variables before they are referenced.

Tue Feb 25 20:21:52 1997  Stan Shebs  <shebs@andros.cygnus.com>

	* configure.tgt (mips*-*-lnews*): New target.

Mon Feb 24 16:35:00 1997  Jeffrey A Law  (law@cygnus.com)

	* mn10200-tdep.c (mn10200_analyze_prologue): Don't fix fi->frame
	if we're not the innermost frame.  Fix minor typos.

Sat Feb 22 03:39:50 1997  Peter Schauer  (pes@regent.e-technik.tu-muenchen.de)

	* stabsread.c (read_type):  Fix handling of template names
	with template parameters containing `::'.

	* valops.c (search_struct_field, search_struct_method):
	Pass correct valaddr parameter to baseclass_offset.
	Prevent gdb crashes by making sure that the virtual base pointer
	from an user object still points to accessible memory.

Tue Feb 18 13:36:34 1997  Mark Alexander  <marka@cygnus.com>

	* maint.c: Eliminate -Wall warnings by including some header files.

Tue Feb 18 13:06:30 1997  Mark Alexander  <marka@cygnus.com>

	* remote-sim.c (init_callbacks): Undo previous change.

Tue Feb 18 11:13:00 1997  Dawn Perchik  <dawn@cygnus.com>

	* maint.c: Fix dereference of pointer.
	* remote-sim.c: Fix reference of structure member "last_error".
	* debugify.c: Include config.h to get ANSI definitions.

Sat Feb 15 17:43:46 1997  Stu Grossman  (grossman@critters.cygnus.com)

	* remote-vx.c (vx_attach):  Fix for PR 11356.  Remove code added
	by kung.  It made no sense.

Fri Feb 14 13:00:07 1997  Ian Lance Taylor  <ian@cygnus.com>

	* main.c (print_gdb_help): Make static to match declaration.

Thu Feb 13 18:18:18 1997  Dawn Perchik  <dawn@cygnus.com>

	* remote-e7000.c, ser-e7kpc.c, serial.c: Remove // comments.

Wed Feb 12 15:58:00 1997  Dawn Perchik  <dawn@cygnus.com>

	* debugify.c, debugify.h: Make safe for non-ansi compilers.

Wed Feb 12 15:30:00 1997  Dawn Perchik  <dawn@cygnus.com>

	* defs.h: Fix prototypes for new cleanup functions.

Wed Feb 12 15:08:47 1997  Dawn Perchik  <dawn@cygnus.com>

	* debugify.c, debugify.h: Fix for general gnu use.  Remove C++ 
	comment, add PARAMS, add license info and fix indentation.

Wed Feb 12 14:42:47 1997  Dawn Perchik  <dawn@cygnus.com>

	* debugify.c, debugify.h: New files.  Provide common macros
	for writing debug info to a log file or stdio.

Wed Feb 12 02:44:39 1997  Dawn Perchik  <dawn@cygnus.com>

        * c-valprint.c (c_val_print): Fix printing for arrays defined
        with 0 length.  A sticky tag caused this fix from 
	revision 2.32 date: 1996/04/29 23:25:27;  author: dawn;  
	state: Exp;  lines: +1 -0 branches:  2.32.34;
	to not make it into devo.

Tue Feb 11 22:24:39 1997  Dawn Perchik  <dawn@cygnus.com>

	* defs.h: Fix cntl-C to read from the Windows message queue.
	Add prototypes for make_final_cleanup (and the other cleanup
	routines.
	* remote-e7000.c: Fix sync code to timeout if unable to sync.
	Change sync code to report status while trying to sync-up 
	with hardware.  Add debugging output and document.
	* ser-e7kpc.c: Swap order of len & offset to match implementation.
	Add debugging output and document.
	* serial.c: Add debugging output.
	* top.c: Add call to do_final_cleanups.
	Remove conditionals preventing Win32 from getting SIGQUIT.
	* utils.c: (*_cleanup): Modify cleanup routines to accept a cleanup
	chain as a parameter.  Extract this generic code from the cleanup 
	routines into separate funtions (*_my_cleanup).  Keep old 
	functionality by passing "cleanup_chain" to the new funtions.  
	Define the cleanup chain "final_cleanup_chain" to be a cleanup 
	chain which will be executed only when gdb exits.  Add functions 
	(*_final_cleanup) to match the original (*_cleanup) functions.
	(pollquit, quit, notice_quit): Fix to read cntl-C from the 
	Windows message queue.

start-sanitize-m32r
Tue Feb 11 15:36:31 1997  Doug Evans  <dje@canuck.cygnus.com>

	* m32r-rom.c: #include <sys/types.h>.
	#ifdef out new load support if wingdb.
	* m32r/tm-m32r.h (TARGET_M32R): Define, for wingdb.

end-sanitize-m32r
Tue Feb 11 12:28:09 1997  Jeffrey A Law  (law@cygnus.com)


	* config/mn10200/tm-mn10200.h (STORE_STRUCT_RETURN): Fix.
	* mn10200-tdep.c (mn10200_store_struct_return): New function.

	* config/mn10200/tm-mn10200.h (EXTRACT_RETURN_VALUE): Fix case when
	extracting a return value from a register pair.

	* mn10200-tdep.c (mn10200_push_arguments): Stack only needs to
	be two byte aligned.  Round argument sizes up to two byte boundary.
	Write out args in two byte hunks.
	(mn10200_push_return_address): Implement.
	* config/mn10200/tm-mn10200.h (EXTRACT_RETURN_VALUE): Abort for
	structures > 8 bytes (temporary).
	(STORE_RETURN_VALUE): Likewise.
	(CALL_DUMMY): No longer undefine.
	(USE_STRUCT_CONVENTION): Use for args > 8 bytes.
	(REG_STRUCT_HAS_ADDR): Define.
	
start-sanitize-r5900
Fri Feb 07 09:04:37 1997  Gavin Koch  <gavin@cygnus.com>
        
        * configure.tgt: added r5900.
        
end-sanitize-r5900
Mon Feb 10 18:35:55 1997  Mark Alexander  <marka@cygnus.com>

	* mips-tdep.c (non_heuristic_proc_desc): New function.
	(find_proc_desc): Move non-heuristic proc search code into separate
	function.
	(gdb_print_insn_mips): Use non-heuristic method to find procedure
	descriptor, to avoid prologue examination when disassembling.
	* remote-mips.c: Add support for new "lsi" target (LSI MiniRISC
	aka MicroMeteor board).
	(mips_exit_debug): Prevent protocol reinitialization if an error
	occurs while exiting debug mode.

Mon Feb 10 16:11:57 1997  Jeffrey A Law  (law@cygnus.com)

	* mn10200-tdep.c: Remove lots of debugging printfs, update/improve
	comments, formatting, etc.  Plus other minor fixes for problems
	I found during my first pass over the mn10200 port.
	(mn10200_analyze_prologue): New function.
	(mn10200_frame_chain, mn10200_init_extra_frame_info): Use it.
	* config/mn10200/tm-mn10200.h: Lots of updates/improvements to
	comments, formatting, etc.  Minor fixes for problems I found during
	my first pass over the mn10200 port.
	(TARGET_*_BIT): Define appropriately for ints, long longs, doubles and
	pointers.
	(REGISTER_VIRTUAL_TYPE): Define as a long.
	(EXTRACT_RETURN_VALUE): Rework to deal with long ints living
	in register pairs.
	(STORE_RETURN_VALUE): Similarly.

	* blockframe.c (generic_get_saved_regs): Remove unused variable
	"addr".
	* breakpoint.c (frame_in_dummy): Move struct breakpoint *b decl
	inside #ifdef CALL_DUMMY.
	(watch_command_1): Initialize target_resources_ok.
	* command.c (do_setshow_command): Provide dummy initialization
	for "match".
	* valops.c (find_function_addr): Move function & prototype inside
	#ifdef CALL_DUMMY.
	(value_arg_coerce): Similarly.
	(value_of_variable): Provide dummy initialization of "frame".

Mon Feb 10 13:50:53 1997  Stu Grossman  (grossman@critters.cygnus.com)

	* gdbtk.c (call_wrapper):  Clear running_now if an error occurs.
	This fixes PR 11323, where gdbtk stops responding if an error occurs.

Mon Feb 10 07:54:26 1997  Fred Fish  <fnf@cygnus.com>

	* xcoffread.c (RECORD_MINIMAL_SYMBOL): Add NULL asection* parameter
 	to prim_record_minimal_symbol_and_info call that was missed in Jan 3
	change.
	(scan_xcoff_symtab): Ditto.

Sun Feb 09 09:23:26 1997  Mark Alexander  <marka@cygnus.com>

	* remote-mips.c (common_breakpoint): Prevent 64-bit addresses
	from being sent to 32-bit targets by masking off upper bits.
	* mips-tdep.c (heuristic_proc_start): Mask off upper 32 bits
	of PC on 32-bit targets.
	(mips16_heuristic_proc_desc): Recognize 'addiu s1,sp,n' as a
	frame setup instruction.
	(mips32_heuristic_proc_desc): Fix warning found by gcc -Wall.
	(mips16_skip_prologue): Recognize 'addiu s1,sp,n' as a valid
	prologue instruction.  Fix warnings and bugs found by gcc -Wall.
	* buildsym.c (finish_block): Improve handling of overlapping blocks;
	fixes problem on MIPS16 printing function arguments.

Sat Feb  8 01:14:43 1997  Peter Schauer  (pes@regent.e-technik.tu-muenchen.de)

	* dwarf2read.c (dwarf2_linkage_name):  New function to get
	the linkage name of a die from DW_AT_MIPS_linkage_name or
	DW_AT_name.
	(read_func_scope, dwarf2_add_field, dwarf2_add_member_fn,
	new_symbol):  Use it instead of accessing DW_AT_name.
	(read_partial_die):  Use DW_AT_MIPS_linkage name as name of the
	partial die if present.
	(dwarf2_add_member_fn):  Make a copy of physname on the type obstack.

Fri Feb  7 10:06:22 1997  Jeffrey A Law  (law@cygnus.com)

	* blockframe.c (generic_frame_chain_valid): If the new frame
	is not INNER_THAN the old frame, then it's not valid.

Tue Feb 04 09:04:37 1997  Mark Alexander  <marka@cygnus.com>

	* mips-tdep.c (mips16_get_imm): Fix calculation of extended immediate.
	(mips16_heuristic_proc_desc): Recognize jal(x) instruction.

Mon Feb 03 17:57:58 1997  Mark Alexander  <marka@cygnus.com>

	* mips-tdep.c (mips16_decode_reg_save): Distinguish between
	sd and sw instructions correctly.
	(heuristic_proc_start): Add support for MIPS16.
	(mips16_get_imm, mips16_heuristic_proc_desc,
	mips32_heuristic_proc_desc): New helper functions for
	heuristic_proc_desc.
	(heuristic_proc_desc): Rewrite and reorganize to support MIPS16.
	(mips_push_arguments): Don't align small arguments in EABI.
	(mips32_skip_prologue): Attempt to shrink code size a little.

start-sanitize-m32r
Mon Feb  3 11:06:05 1997  Michael Snyder  <msnyder@cleaver.cygnus.com>

	* m32r-stub.c: New -- remote protocol support for M32R cpu.
	* m32r-rom.c:  Several experiments with improved download time.
	* .Sanitize:   Add entry for m32r-stub.c
end-sanitize-m32r

Fri Jan 31 08:26:39 1997  Mark Alexander  <marka@cygnus.com>

	* mips-tdep.c (MIPS16_INSTLEN): Define.
	(mips_find_saved_regs): Replace hardcoded 2's with MIPS16_INSTLEN.
	(heuristic_proc_start): Recognize 'entry' pseudo-op as a start
	of function on MIPS16.
	(mips32_skip_prologue, mips16_skip_prologue): New helper functions
	for mips_skip_prologue.
	(mips_skip_prologue): Recognize both 16- and 32-bit prologues.

Wed Jan 29 12:45:54 1997  Michael Meissner  <meissner@tiktok.cygnus.com>

	* config/powerpc/ppc{,le}-sim.mt (SIM): Remove the library
	../sim/common/libcommon.a.

Tue Jan 28 15:54:13 1997  Michael Snyder  <msnyder@cleaver.cygnus.com>

	* blockframe.c: fix a null pointer ref in generic_get_saved_register

Tue Jan 28 15:39:50 1997  Geoffrey Noer  <noer@cygnus.com>

	* mn10200-tdep.c (mn10200_frame_chain): Get basic backtracing
	working.

Mon Jan 27 14:31:52 1997  Mark Alexander  <marka@cygnus.com>

First set of changes for mips16:
	* config/mips/tm-mips.h (MIPS16_BIG_BREAKPOINT,
	MIPS16_LITTLE_BREAKPOINT, BREAKPOINT_FROM_PC): Define.
	(ABOUT_TO_RETURN): Call new function mips_about_to_return.
	(mips_breakpoint_from_pc, mips_about_to_return): Declare.
	* mem-break.c (memory_breakpoint_from_pc): New function.
	(memory_insert_breakpoint, memory_remove_breakpoint): Use
	memory_breakpoint_from_pc to determine breakpoint contents and size.
	* target.h (memory_breakpoint_from_pc): Declare.
	* monitor.c (monitor_insert_breakpoint): Use memory_breakpoint_from_pc
	to determine size of breakpoint instruction.
	* mips-tdep.c (mips32_decode_reg_save, mips16_decode_reg_save):
	New helper functions for mips_find_saved_regs.
	(mips_find_saved_regs): Recognize mips16 prologues.
	(mips_addr_bits_remove): Strip off upper 32 bits of address
	when target CPU is 32 bits but CORE_ADDR is 64 bits.
	(mips_step_skips_delay): No branch delay slot on mips16.
	(gdb_print_insn_mips): Disassemble mips16 code.
	(mips_breakpoint_from_pc, mips_about_to_return): New functions.

Mon Jan 27 10:34:03 1997  Jeffrey A Law  (law@cygnus.com)

	* tm-mn10200.h (NUM_REGS): Decrease to 12.
	(REGISTER_NAMES): Elimination registers not found on the mn10200.
	(PC_REGNUM, MDR_REGNUM, PSW_REGNUM): Corresponding changes.
	(LIR_REGNUM, LAR_REGNUM): Delete.  They don't exist on the mn10200.

Sat Jan 25 00:07:59 1997  Peter Schauer  (pes@regent.e-technik.tu-muenchen.de)

	* dwarf2read.c:  Replace integral tag, name and form fields in
	internal structure definitions with the corresponding enumeration
	types from dwarf2.h. Add default cases to switches on enumerations
	where appropriate.
	Make quoting of string arguments in complaint messages consistent.
	Check for NULL returns from DW_STRING.
	(struct partial_die_info):  Add sibling and has_type fields, remove
	unused value field.
	(DW_*):  Move access macro definitions near the definition of the
	attribute structure.
	(struct field_info):  New structure to pass information about fields
	and member functions between die processing routines.
	(dwarf2_build_psymtabs_hard):  Set cu_header_offset.
	(scan_partial_symbols):  Do not enter DW_TAG_subprogram dies into
	the partial symbol table if the DW_AT_*_pc attributes are missing.
	Add file scope base type definitions to the partial symbol table.
	Skip over child dies if the die has a sibling attribute.
	(add_partial_symbol):  Enter global variables with type attributes
	and without location descriptors into the partial symbol table.
	Store value of DW_TAG_variable dies in the partial symbol table.
	Do not enter global variables into the minimal symbol table.
	Add base type definitions to the partial symbol table.
	(psymtab_to_symtab_1):  Use dwarf2_get_pc_bounds to determine highpc.
	(process_die):  Move check for DW_AT_low_pc to read_func_scope.
	Add a typedef symbol for base type definitions to the symbol table.
	Ignore DW_TAG_inlined_subroutine tags for now.
	(read_file_scope):  Use dwarf2_get_pc_bounds to determine pc bounds.
	(read_func_scope, read_lexical_block_scope):  Use dwarf2_get_pc_bounds
	to determine pc bounds, ignore dies with invalid bounds.
	(dwarf2_get_pc_bounds):  New routine to extract and validate the
	DW_AT_*_pc attributes of a die.
	(dwarf2_add_field, dwarf2_attach_fields_to_type, skip_member_fn_name,
	dwarf2_add_member_fn, dwarf2_attach_fn_fields_to_type):
	New functions to handle fields and member functions.
	(read_structure_scope):  Rewritten to use them.
	(read_array_type):  Renamed from dwarf_read_array_type.
	Default upper array bound to describe an array with unspecified
	length.
	Create array types in backwards order, as dwarf2 puts out the array
	dimensions from left to right.
	(read_subroutine_type):  Handle DW_TAG_unspecified_parameters,
	DW_AT_artificial and DW_AT_prototyped.
	(read_base_type):  Make an unsigned type for DW_ATE_boolean.
	Pass objfile to dwarf_base_type.
	(read_partial_die):  Use read_attribute to read in the attributes.
	Handle DW_AT_sibling and DW_AT_type.
	Follow references when determining DW_AT_name and DW_AT_external
	attributes of the die.
	Validate DW_AT_*_pc attributes.
	(read_full_die):  Use read_attribute to read in the attributes.
	(read_attribute):  New function to read an attribute described
	by an abbreviated attribute.
	(new_symbol):  Relocate symbol value for DW_TAG_label with baseaddr.
	Do not set SYMBOL_VALUE_ADDRESS for DW_TAG_subprogram,
	SYMBOL_BLOCK_VALUE for the symbol will be set later by finish_block.
	Change symbol class for global variables with a zero valued location
	descriptor to LOC_UNRESOLVED.
	Handle DW_AT_const_value attributes for DW_TAG_variable,
	DW_TAG_formal_parameter and DW_TAG_enumerator.
	Build a typedef symbol for DW_TAG_base_type.
	(dwarf2_const_value):  New routine to copy a constant value from an
	attribute to a symbol.
	(dwarf_base_type):  Use passed in objfile, not current_objfile
	when calling dwarf2_fundamental_type.
	(dump_die):  Use DW_* accessor macros to access values of attributes.
	(decode_locdesc):  Handle DW_OP_plus_uconst.

Wed Jan 22 01:31:16 1997  Geoffrey Noer  <noer@cygnus.com>

	* mn10200-tdep.c: New file.
	* config/mn10200/tm-mn10200.h: New, REGISTER_SIZE is 24 bits not 32,
	SP_REGNUM and FP_REGNUM are different, also no lar or lir.
	* config/mn10200/mn10200.mt: New file.
	* configure.tgt: add mn10200 entry.

Tue Jan 21 18:32:23 1997  Stu Grossman  (grossman@lisa.cygnus.com)

	* configure.in configure:  Check if host has libdl if doing
	Solaris threads.

Tue Jan 21 17:03:26 1997  Geoffrey Noer  <noer@cygnus.com>

	* mn10300-tdep.c: Wrote/fixed implementations of
	mn10300_frame_chain, mn10300_init_extra_frame_info,
	mn10300_frame_saved_pc
	* config/mn10300/tm-mn10300.h: Redefine INIT_EXTRA_FRAME_INFO
	and INIT_FRAME_PC macros.

Tue Jan 21 17:01:20 1997  Stu Grossman  (grossman@lisa.cygnus.com)

	* configure.in configure:  Check if host has libm.  Make sure we
	are using gcc when using the -export-dynamic option.  Fixes a
	problem with building under Solaris/SunPro cc.

Mon Jan 20 13:52:13 1997  Mark Alexander  <marka@cygnus.com>

	* config/mips/{embed,embed64,embedl,embedl64}.mt:
	Link in simulator on MIPS embedded targets.

Sat Jan 18 02:31:29 1997  Peter Schauer  (pes@regent.e-technik.tu-muenchen.de)

	* blockframe.c (frameless_look_for_prologue):  Mark frames
	with a zero PC as frameless to improve backtraces from core dumps
	caused by dereferencing a NULL function pointer.

Thu Jan 16 14:10:41 1997  Geoffrey Noer  <noer@cygnus.com>

	* config/mn10300/tm-mn10300.h: fix BREAKPOINT definition.

Tue Jan 14 16:01:06 1997  Geoffrey Noer  <noer@cygnus.com>

	* mn10300-tdep.c: made a lot more generic, ripping out code
	from copied target (no more mn10300_scan_prologue,
	init_extra_frame_info, and mn10300_fix_call_dummy calls)
	* config/mn10300/tm-mn10300.h: undefine INIT_EXTRA_FRAME_INFO
	and INIT_FRAME_PC macros

Thu Jan  9 11:44:40 1997  Michael Snyder  <msnyder@cleaver.cygnus.com>

	* sparc-tdep.c (sparc_frame_find_saved_regs): Don't use 
	FP_REGISTER_BYTES to compute offsets into the saved frame, 
	since it fails for SPARC targets configured without any
	FP regs.  Instead, use DUMMY_STACK_REG_BUF_SIZE.  

Mon Jan  6 11:15:14 1997  Stu Grossman  (grossman@critters.cygnus.com)

	* symtab.c (fixup_symbol_section):  Handle NULL symbols without
	crashing.

Fri Jan  3 12:08:16 1997  Stu Grossman  (grossman@critters.cygnus.com)

	* Makefile.in configure configure.in:  Remove ENABLE_CLIBS,
	ENABLE_OBS, and THREAD_DB_OBS.  These are consolidated into LIBS
	and CONFIG_OBS.
	* configure configure.in:  Clean up test cases around thread support.
start-sanitize-v850
	* configure.tgt (v850-*-*):  Include v850ice.o and v850.lib if
	host is Windows.
end-sanitize-v850
	* c-valprint.c ch-valprint.c cp-valprint.c eval.c expprint.c
	printcmd.c valops.c value.h values.c:  Add bfd_section arg to
	value_at and value_at_lazy.
	* coffread.c dbxread.c elfread.c mdebugread.c minsyms.c symtab.h:
	Add bfd_section arg to prim_record_minimal_symbol_and_info.
	* corefile.c gdbcore.h printcmd.c valops.c:  Use read_memory_section
	instead of read_memory.  It takes a bfd_section arg.
	* coffread.c dbxread.c elfread.c gdb-stabs.h objfiles.h:  Remove
	unnecessary cast for assignment of struct dbx_symfile_info.
	Struct objfile now uses a real pointer instead of PTR for this
	element.
	* dbxread.c (dbx_symfile_init): Stash bfd section pointers for
	text, data and bss into dbx_symfile_info.
	* exec.c (xfer_memory):  Handle transfers for user-specified
	sections.
	* findvar.c (read_var_value locate_var_value):  Copy bfd section
	from the symbol to the value.
	* gdb-stabs.h:  Add section pointers for text, data and bss
	sections.
	* maint.c (translate address command):  Add test code for overlay
	address translation.
	* printcmd.c (do_examine do_one_display):  Now takes a bfd section
	arg.
	* (print_formatted x_command):  Record current section along with
	current address for repeated commands.
	* sparc-nat.c (fetch_inferior_registers):  Change
	target_xfer_memory to target_{read write}_memory to allow changes
	to target_xfer_memory interface for section info.
	* symmisc.c (dump_msymbols print_symbol):  Print section
	assocaited with symbol.
	* symtab.c (fixup_symbol_section):  New routine to
	add section info to symbols returned by lookup_symbol.
	* symtab.h (struct general_symbol_info):  Add bfd section to
	symbols.
	* target.c target.h (target_xfer_memory):  Add bfd section to
	args.
	* (target_read_memory_section):  New routine to read data from a
	specific section.
	* (target_memory_bfd_section):  New global variable to pass bfd
	section in to targets.
	* valarith.c (value_add value_addr value_array):  Preserve bfd
	section when computing new value.
	* value.h (struct value):  Add bfd section to values.
	* values.c (allocate_value value_copy):  Initialize/preserve bfd
	section.
	* (unpack_double):  Clean up _MSC_VER conditionals to remove
	duplicate code.
start-sanitize-v850
	* v850ice.c:  New module to support communication with NEC's
	PC-based ICE.
	* config/v850/tm-v850.h (REGISTER_NAMES):  Replace sp, gp, fp, and
	ep names with rxx names.  sp and fp are renamed via a different
	mechanism.
end-sanitize-v850

Fri Jan  3 14:20:05 1997  Geoffrey Noer  <noer@cygnus.com>

	* mn10300-tdep.c (mn10300_push_arguments): rewrote,
	also removed code elsewhere that made use of RP_REGNUM.
	* config/mn10300/tm-mn10300.h: ripped out RP_REGNUM, V0_REGNUM,
	ARG0_REGNUM, ARGLAST_REGNUM (all not appropriate for mn10300
	arch.), redefined SAVED_PC_AFTER_CALL, EXTRACT_RETURN_VALUE,
	EXTRACT_STRUCT_VALUE_ADDRESS, STORE_RETURN_VALUE.

For older changes see ChangeLog-96
\f
Local Variables:
mode: indented-text
left-margin: 8
fill-column: 74
version-control: never
End: