Wed May 21 16:03:25 1997 Michael Snyder <msnyder@cleaver.cygnus.com>

[binutils-gdb.git] / gdb / ChangeLog

Wed May 21 16:03:25 1997  Michael Snyder  <msnyder@cleaver.cygnus.com>

        * procfs.c (init_procinfo): new function, abstracts some code
        shared by create_procinfo and do_attach; 
        (procfs_set_inferior_syscall_traps): new function, abstracts
        some code needed by procfs_init_inferior, do_attach, and 
        procfs_lwp_creation_handler; (procfs_first_available): new
        function, find any LWP that's runnable; (procfs_thread_alive):
        replace stub function with real implementation; 
        (procfs_lwp_creation_handler): fix bug starting new child 
        threads; (info_proc): bug fixes and enhancements for the 
        "INFO PROCESSES" command; (close_procinfo_file): call new
        function "delete_thread" to cleanup GDB's thread database;
        (proc_init_failed): add new argument "kill", to control whether
        process is killed (so this function can be shared by 
        create_procinfo and do_attach); (procfs_exit_handler): handle
        exit from an attached process, and cleanup procinfo handles
        when the process exits; (procfs_resume, procfs_wait): cleanup
        after a thread when it exits; (do_attach, do_detach): handle
        attached processes with multiple threads; plus some general 
        improvements in the diagnostic output.
        * sol-thread.c (sol_thread_alive): replace stub with real
        implementation; (thread_to_lwp, lwp_to_thread): enhance to 
        handle threads that may have exited; (sol_thread_attach): add
        startup setup stuff; (sol_thread_detach): add unpush_target
        call; (sol_thread_mourn_inferior): add unpush_target call;
        (sol_thread_wait, sol_thread_resume): enhance to deal with
        thread exit cleanly; (sol_thread_new_objfile, 
        sol_thread_pid_to_str): detect unsuccessful startup and 
        don't crash; plus some general cleanup.
        * thread.c (delete_thread): new function, allows targets to 
        notify gdb when a thread is no longer valid.
        * infrun.c (wait_for_inferior): don't try to detect a new
        thread on receiving a TARGET_EXITED event.
        
Tue May 20 09:32:02 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * remote-sim.c (gdbsim_open): Pass callback struct.
        (init_callbacks): Remove call to sim_set_callbacks.

Thu May 15 07:56:50 1997  Peter Schauer  (pes@regent.e-technik.tu-muenchen.de)

        * config/rs6000/tm-rs6000.h (SIG_FRAME_LR_OFFSET):  Define.
        * rs6000-tdep.c (frameless_function_invocation):  Mark frames
        with a zero PC as frameless to improve backtraces from core dumps
        caused by dereferencing a NULL function pointer.
        (frameless_function_invocation, frame_saved_pc, rs6000_frame_chain):
        Handle frameless functions interrupted by a signal.

        * sparc-tdep.c (sparc_init_extra_frame_info, sparc_frame_saved_pc):
        Handle frameless functions interrupted by a signal.

Wed May 14 08:58:55 1997  Jeffrey A Law  (law@cygnus.com)

        * mn10200-tdep.c (mn10200_analyze_prologue): Update prologue comments
        to reflect current reality.  Gross attempt at handling out of
        line prologues.

        * mn10200-tdep.c (mn10200_skip_prologue): Don't look at the debug
        symbols to find the end of the prologue.
        * mn10300-tdep.c (mn10300_skip_prologue): Likewise.

start-sanitize-tic80
Wed May 14 12:04:49 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * config/tic80/tm-tic80.h (NUM_REGS): 38 not 37.

end-sanitize-tic80
start-sanitize-tic80
Mon May 12 11:35:04 1997  Mark Alexander  <marka@cygnus.com>

        * tic80-tdep.c, config/tic80/tm-tic80.h: First cut at getting
        basic C80 features working.

end-sanitize-tic80
Thu May  8 08:42:47 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * configure.in (AC_TYPE_SIGNAL): Add
        * configure: Re-generate.
        * remote-sim.c: Signal returns RETSIGTYPE.
        
start-sanitize-gdbtk
Wed May  7 19:10:19 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * gdbtk.c (wrapped_call): New function - make actual call to tk
        worker function.
        (call_wrapper): Rewrite to use top.c:catch_errors.

        * gdbtk.c (gdb_stop): If No target_stop set quit flag and hope for
        best.

end-sanitize-gdbtk
Wed May  7 20:05:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * target.h (target_stop): Drop argument so it can be tested for
        NULL.

Sat May  3 20:51:48 1997  Mark Alexander  <marka@cygnus.com>

        * utils.c (floatformat_from_doublest): Handle infinity properly.

Thu May  1 11:44:46 1997  Michael Snyder  <msnyder@cleaver.cygnus.com>

        * Finalize merge from Hurd folk.  
            Mon Oct 30 16:41:04 1995  Miles Bader  <miles@gnu.ai.mit.edu>
            * thread.c (thread_apply_command, thread_apply_all_command,
            thread_command): Make sure TP is alive.
            (thread_alive): New function.
            Tue Nov 14 14:31:03 1995  Miles Bader  <miles@gnu.ai.mit.edu>
            * infrun.c (sig_print_info): Deal better with long signal names.
            Wed Nov 22 15:23:35 1995  Miles Bader  <miles@gnu.ai.mit.edu>
            * thread.c (thread_id_to_pid): New function.
            Fri Dec  1 13:25:25 1995  Miles Bader  <miles@gnu.ai.mit.edu>
            * gnu-nat.c: (set_thread_cmd_list, show_thread_cmd_list,
            set_thread_default_cmd_list, show_thread_default_cmd_list): 
            New variables.  (set_thread_cmd, show_thread_cmd, 
            set_thread_default_cmd, show_thread_default_cmd): New functions.
            Fri Apr 18 15:20:16 1997  Miles Bader  <miles@gnu.ai.mit.edu>
            * gnu-nat.c (inf_startup): remove TASK parameter. 
            (inf_set_task): replace with new function (inf_set_pid).  
          * gdbthread.h: Add extern decl for thread_cmd_list.
        
Thu May  1 02:28:21 1997  Peter Schauer  (pes@regent.e-technik.tu-muenchen.de)

        * printcmd.c (disassemble_command):  Adjust low function bound
        by FUNCTION_START_OFFSET.

start-sanitize-tic80
Wed Apr 30 15:23:02 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * config/tic80/tm-tic80.h (BREAKPOINT): Set it to trap 73.

end-sanitize-tic80
Mon Apr 28 21:25:32 1997  Michael Snyder  <msnyder@cleaver.cygnus.com>

        * Makefile.in: Add rule for gnu-nat.o and i386gnu-nat.o (Gnu Hurd)
        * config/i386/i386gnu.mh: remove rules for [i386]gnu-nat.o, now 
        in Makefile.in (as for other targets); add NATDEPFILE corelow.o to 
        satisfy symbol dependancy in solib.c (core_ops).
        * target.[ch] conditionalize Mach-specific signals so that they
        won't show up in non-Mach gdb's!
        * thread.c: change name of static function "thread_switch" to 
        "switch_to_thread", to avoid conflict with Mach global symbol; 
        move thread_cmd_list to global scope so targets can add their 
        own thread commands.
        * infrun.c: sig_print_info: allow for long signal names.
        * gnu-nat.[ch]: tidying up comments.
        * gnu-nat.c: remove calls to prune_threads and renumber_threads; 
        gnu_wait must not return -1 when inferior exits; 
        attach_to_child will modify inferior_pid in a way that allows
        fork_inferior to remain unchanged; remove extra arg from 
        startup_inferior; move Mach thread commands here from thread.c.

Mon Apr 28 18:21:20 1997  Michael Snyder  <msnyder@cleaver.cygnus.com>

        * symtab.c: decode_line_1, replace the assignment to 
        values.sals[0].pc which I accidentally left out on 4/3/97.

Mon Apr 28 17:27:40 1997  Michael Snyder  <msnyder@cleaver.cygnus.com>

        * c-exp.y, java-exp.y: make parse_number reject "123DEADBEEF".
        (fix by Bob Manson).
        * top.c: change "to enable to enable" to "to enable" in a couple
        of help strings.

Mon Apr 28 09:01:59 1997  Mark Alexander  <marka@cygnus.com>

        * breakpoint.c (remove_breakpoint): Pass correct type to
        target_remove_watchpoint.
        * target.h: Improve comment for target_{remove,insert}_breakpoint.

Sat Apr 26 03:38:02 1997  Peter Schauer  (pes@regent.e-technik.tu-muenchen.de)

        * alpha-tdep.c (heuristic_proc_desc):  Increase search limit
        for return address register, handle `ret' instruction.

        * corelow.c (get_core_registers):  Initialize cf.

        * procfs.c:  Minor changes to make pre-ANSI compilers happy.
        (procfs_notice_signals):  Copy traced signal set back to
        pi->prrun.pr_trace.
        (unconditionally_kill_inferior):  If PR_DEAD is defined,
        rerun inferior after killing it.

Fri Apr 25 00:10:18 1997  Jeffrey A Law  (law@cygnus.com)

        * config/mn10300/tm-mn10300.h (EXTRACT_STRUCT_VALUE_ADDRESS): The
        structure value address is found in $a0 now.
        * config/mn10200/tm-mn10200.h (EXTRACT_STRUCT_VALUE_ADDRESS): Likewise.

Thu Apr 24 13:31:10 1997  Jeffrey A Law  (law@cygnus.com)

        * config/mn10300/tm-mn10300.h (STORE_RETURN_VALUE): Pointers are
        returned in $a0.
        (EXTRACT_RETURN_VALUE): Likewise.

        * mn10300-tdep.c (mn10300_analyze_prologue): Check for a return
        insn at "pc", not "fi->pc".

start-sanitize-tic80
Thu Apr 24 16:11:47 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * config/tic80/tm-tic80.h (NUM_REGS): Four 64bit accumulators.
        (REGISTER_BYTE, REGISTER_RAW_SIZE, REGISTER_SIZE,
        MAX_REGISTER_RAW_SIZE, REGISTER_VIRTUAL_TYPE): Adjust.
        (NPC_REGNUM): Tic80 has a delay slot.
        (R0_REGNUM, Rn_REGNUM, An_REGNUM): For sim, provide base/bound for
        register blocks.

end-sanitize-tic80
Wed Apr 23 11:18:45 1997  Jeffrey A Law  (law@cygnus.com)

        * config/mn10200/tm-mn10200.h (STORE_RETURN_VALUE): Pointers are
        returned in $a0.
        (EXTRACT_RETURN_VALUE): Likewise.

Tue Apr 22 11:58:15 1997  Fred Fish  <fnf@cygnus.com>

        * config/arm/tm-arm.h (TARGET_DOUBLE_FORMAT): Define to use
        floatformat_ieee_double_littlebyte_bigword for little endian
        target byte order.
        * utils.c (floatformat_to_doublest): Create local preswapped
        copy of input for floatformat_littlebyte_bigword formats.
        (get_field, put_field): Treat floatformat_littlebyte_bigword
        the same as floatformat_little.
        (floatformat_from_doublest): Postswap output words for
        the floatformat_littlebyte_bigwords format.

start-sanitize-tic80
Mon Apr 21 22:44:47 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * config/tic80/tic80.mt (SIM): Link in simulator.

end-sanitize-tic80
Tue Apr 22 09:02:10 1997  Stu Grossman  (grossman@critters.cygnus.com)

        * config/alpha/alpha-osf3.mh config/i386/{i386gnu linux}.mh
        config/mips/{embed embed64 embedl embedl64 vr4300 vr4300el vr5000
        vr5000el}.mt config/powerpc/{aix aix4}.mh config/rs6000/{aix
        aix4}.mh config/sh/sh.mt config/sparc/sp64sim.mt:
start-sanitize-v850
        config/v850/v850.mt:
end-sanitize-v850
        Remove -lm.  That's now handled by configure.

        * Makefile.in (maintainer-clean):  Add distclean to dependencies.
        Remove duplicate rm's of files.

start-sanitize-gdbtk
Mon Apr 21 14:00:08 1997  Doug Evans  <dje@canuck.cygnus.com>

        * gdbtk.c (gdb_disassemble): Store endian-ness in `di'.

end-sanitize-gdbtk
Mon Apr 21 09:49:25 1997  Stu Grossman  (grossman@critters.cygnus.com)

        * remote-pa.c:  Remove.  It's broken and no longer necessary.

Sat Apr 19 11:56:10 1997  Per Bothner  <bothner@deneb.cygnus.com>

        * java-exp.y:  Combine TRUE and FALSE into BOOLEAN_LITERAL.
        (Avoids name clash with broken AIX header files.)

Sat Apr 19 01:49:37 1997  Peter Schauer  (pes@regent.e-technik.tu-muenchen.de)

        * serial.c (serial_log_command):  Fix fputs_unfiltered calls.

        * config/powerpc/tm-ppc-aix4.h, config/rs6000/tm-rs6000-aix4.h
        (DONT_RELOCATE_SYMFILE_OBJFILE):  Removed.
        * xcoffsolib.h (struct vmap):  Add new members tvma, toffs and dvma,
        remove tadj.
        * exec.c (bfdsec_to_vmap):  Initialize new vmap members, initialize
        tstart and dstart with section VMA.
        * rs6000-nat.c (vmap_symtab):  Relocate relative to the VMA in the
        object file.
        (vmap_ldinfo, xcoff_relocate_core):  Adjust tstart by section offset
        of the text section, remove DONT_RELOCATE_SYMFILE_OBJFILE hack.
        (vmap_exec):  Relocate relative to the VMA in the object file,
        relocate .bss section as well.
        (xcoff_relocate_core):  No longer adjust section addresses by VMA.
        * rs6000-tdep.c (find_toc_address):  Change type of tocbase
        to CORE_ADDR.
        * xcoffread.c (secnum_to_bfd_section):  New routine to get
        BFD section from CS section number.
        (scan_xcoff_symtab):  Make toc_offset section relative.

        * symtab.c (total_number_of_methods):  Avoid core dump if
        baseclass type is still undefined.

Fri Apr 18 17:25:10 1997  Stu Grossman  (grossman@critters.cygnus.com)

        * Makefile.in (SUBDIRS):  Add mswin so that make cleanup cleans up
        that directory.
        * defs.h utils.c (error warning):  Make message be const.
        * main.c (fputs_unfiltered):  Only send gdb_stdout and gdb_stderr
        to hook.  Otherwise send it to fputs.
        * monitor.c monitor.h (monitor_get_dev_name):  New function.  Does
        the obvious.
        * remote-e7000.c:  Remove debugify stuff.  Change printf, fprintf
        to _filtered forms to make output appear in GUIs.  Replace all
        uses of SERIAL_READCHAR with readchar, which has better error
        checking.
        * (e7000_parse_device):  Add prototype.
        (readchar):  Improve doc.  Handle random serial errors.
        (expect):  Disable notice_quit code.  It's busted.  Remove
        serial error handling (it's now handled in readchar).  Remove
        remote_debug echoing.  That's handled in readchar as well.
        (e7000_parse_device):  Remove serial_flag arg.  It's not
        necessary.
        (e7000_open):  Split into two pieces.  Second part is
        e7000_start_remote, and is error protected.  Now, when we connect
        to the target, we setup the initial frame and registers so that
        the user gets an immediate indication of where the target is.
        (gch):  Remove debug output.  That's handled by readchar.
        (e7000_read_inferior_memory):  Handle errors better.
        (_initialize_remote_e7000):  Get rid of `<xxx>' things from
        command names.  They show up when doing completion and confuse
        things horribly.
        * ser-e7kpc.c: Get rid of the DLL's since we can access the device
        directly from Win32s and Win95.  Get rid of debugify crud.
        * serial.c:  Remove debugify cruft.
        * (serial_logchar serial_log_command serial_write serial_readchar
        serial_send_break serial_close):  Merge common functionality into
        serial_logchar.  Clean up rest of routines.
        * sparclet-rom.c:  Disembowel.  Leave only download routine.
        Download routine now switches to remote target automatically.
        * top.c (disconnect):  Only define if SIGHUP is defined.  Cleans
        up MSVC/Win32 problem.
        * utils.c (gdb_flush):  Don't call hook unless it's for gdb_stdout
        or gdb_stderr.
        * config/sh/tm-sh.h:  Define TARGET_SH for WinGDB.
        * config/sparc/tm-sparclet.h:  Remove override for prompt.

Fri Apr 18 13:38:19 1997  Doug Evans  <dje@canuck.cygnus.com>

        * remote-sim.c (gdbsim_open): Only pass -E to sim_open if
        TARGET_BYTE ORDER_SELECTABLE.

Fri Apr 18 16:52:41 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * remote-sim.c (init_callbacks): Initialize poll_quit and magic
        fields of gdb_callback.
        (gdbsim_stop): Add gdbsim_stop to list of supported client
        operations.
        (gdbsim_wait, gdbsim_resume): Move call to sim_resume into
        sim_wait where gdb is in a position to handle a long running
        function.
        (gdbsim_cntrl_c): New function.  Wrap the sim_resume call in a
        SIGINT handler.
        (gdb_os_poll_quit): New function. Check for a quit pending on the
        console.

start-sanitize-gdbtk
Wed Apr 16 12:33:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>

        * Makefile.in (install-only): Make list of gdbtcl files to install
        explicit - was picking up files such as ChangeLog etc.
        (install-only): Don't blindly create the directory.

end-sanitize-gdbtk
Thu Apr 17 14:30:04 1997  Per Bothner  <bothner@deneb.cygnus.com>

        * defs.h (enum language):  Add language_java.
        * java-exp.y, java-lang.c, java-lang.h, java-valprint.c:  New files.
        * Makefile.in:  Update for new files.
        * objfiles.c (allocate_objfile):  Allow NULL bfd argument.
        * symfile.c (deduce_language_from_filename):  Recognize .java.

Thu Apr 17 02:20:23 1997  Doug Evans  <dje@canuck.cygnus.com>

        * m32r-stub.c (stash_registers): Rewrite.
        (restore_registers): Renamed to restore_and_return.
        (cleanup_stash): New function.
        (process_exception): New function.
        (_catchException*): Rewrite.

        * remote-sim.c (gdbsim_load): Update call to sim_load.
        (gdbsim_create_inferior): No longer pass start_address to
        sim_create_inferior.
        (gdbsim_open): Pass endian indicator as arg.

Tue Apr 15 15:31:09 1997  Stan Shebs  <shebs@andros.cygnus.com>

        * remote.c (get_offsets): Don't use scanf for interpreting
        response to qOffsets.

Tue Apr 15 14:51:04 1997  Ian Lance Taylor  <ian@cygnus.com>

        * gdbserver/Makefile.in (INSTALL_XFORM): Remove.
        (INSTALL_XFORM1): Remove.
        (install-only): Use $(program_transform_name) directly, rather
        than using $(INSTALL_XFORM) and $(INSTALL_XFORM1).
        (uninstall): Transform name.

Mon Apr 14 17:06:27 1997  Mark Alexander  <marka@cygnus.com>

        * remote-mips.c (mips_load): Ensure that PC gets updated
        after a load on LSI target.

Mon Apr 14 15:54:51 1997  Geoffrey Noer  <noer@pizza.cygnus.com>

        * procfs.c (notice_signals): fix typo

Mon Apr 14 16:25:10 1997  Ian Lance Taylor  <ian@cygnus.com>

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

Mon Apr 14 11:55:27 1997  Geoffrey Noer  <noer@pizza.cygnus.com>

        * config/i386/cygwin32.mh: remove -lkernel32 from XM_CLIBS
        since gcc automatically includes it

Thu Apr 10 13:20:53 1997  Geoffrey Noer  <noer@cygnus.com>

        * procfs.c: Substantial (but incomplete) changes to support
        sysv4.2mp procfs as implemented in UnixWare 2.1.  The procinfo
        struct now has substructs like struct flt_ctl instead of
        just a fltset_t and has a ctl_fd, status_fd, as_fd, and
        map_fd instead of a single fd.  Non-sysv4.2mp procfs models
        still have the structs and multiple fds, but don't use the
        entire struct and the four fds all point to the same thing.
        We use PROCFS_USE_READ_WRITE to decide whether to talk to
        procfs with reads/writes or use ioctl instead.  We use
        HAVE_MULTIPLE_PROC_FDS to determine whether procfs really has
        multiple fds or not.  PROC_NAME_FMT is split out into
        CTL_PROC_NAME_FMT, AS_PROC_NAME_FMT, MAP_PROC_NAME_FMT, 
        STATUS_PROC_NAME_FMT.
        
        (procfs_notice_signals): now a necessary wrapper around
        (notice_signals): which are the new guts for noticing signals
        (open_proc_file): gets a new flag arg used in sysv4.2mp to
        determine whether or not to attempt to open the ctl_fd.
        (procfs_read_status): new local function, reads procfs status
        (procfs_write_pcwstop): new local function, writes a PCWSTOP
        (procfs_write_pckill): new local function, writes a PCKILL
        (unconditionally_kill_inferior): remove signo since we now
        just call procfs_write_pckill().
        (procfs_xfer_memory): call lseek with SEEK_SET rather than 0    
        (proc_iterate_over_mappings): the whole function is ifdefed
        on UNIXWARE to keep things readable.
        
        Expanded the syscall_table to include new potential sysv4.2mp
        members.  Note that all ifdefs of UNIXWARE should be eliminated
        if possible or renamed to describe what's being selected for a
        bit better.  Sysv4.2mp and IRIX both have SYS_sproc so the
        IRIX specific code now also checks it's not UNIXWARE.

        * config/i386/tm-i386v42mp.h: also define HAVE_PSTATUS_T,
        HAVE_NO_PRRUN_T, PROCFS_USE_READ_WRITE, and UNIXWARE
        * config/mips/nm-irix4.h: set CTL_PROC_NAME_FMT et al to
        "/debug/%d" as PROC_NAME_FMT used to be

Wed Apr  9 11:36:14 1997  Jeffrey A Law  (law@cygnus.com)

        * mn10300-tdep.c: Almost completely rewritten based on mn10200
        port.
        * config/mn10300/tm-mn10300.h: Likewise.

Tue Apr  8 10:45:24 1997  Stu Grossman  (grossman@critters.cygnus.com)

        * config/pa/{hppabsd.mt hppahpux.mt hppaosf.mt}:  Remove
        remote-pa.o from TDEPFILES.  Nobody uses it, and besides, it's a
        lousy out-of-date clone of remote.c.

Fri Apr  4 08:21:21 1997  Stu Grossman  (grossman@critters.cygnus.com)

        * remote.c:  Fix problems realized while showering.
        * (hexnumlen):  Add prototype.  Use max, not min.
        * (remote_write_bytes remote_read_bytes):  Fix max packet size
        calculations to properly account for packet overhead.  Also handle
        (probably rare) case where remote_register_buf_size isn't set.

        * remote.c:  Fix doc for `C' and `S' commands to indicate full
        address.
        * (remote_ops extended_remote_ops remote_desc remote_write_size):
        Make static.
        * (remote_fetch_registers remote_write_bytes remote_read_bytes):
        Record size of response to fetch registers command, use this to
        limit size of memory read and write commands.
        * (push_remote_target):  New function to make it possible to have
        another target switch to the remote target.
        * target.h:  Add prototype for push_remote_target.
        * sh-tdep.c (sh_frame_find_saved_regs):  Fix sign extension bugs
        for hosts which default to unsigned chars (such as SGI's).
        * (_initialize_sh_tdep):  Don't set remote_write_size.  It's now
        handled automatically in remote.c.

Thu Apr  3 15:10:30 1997  Michael Snyder  <msnyder@cleaver.cygnus.com>

        * blockframe.c: blockvector_for_pc_sect(), block_for_pc_sect(), 
        find_pc_sect_function(), find_pc_sect_partial_function(): new 
        functions for debugging overlays; pc without section is ambiguous.
        * breakpoint.[ch]: add section pointer to breakpoint struct;
        add section argument to check_duplicates(); check section as well
        as pc in [breakpoint_here_p(), breakpoint_inserted_here_p(),
        breakpoint_thread_match(), bpstat_stop_status()];  
        add section argument to describe_other_breakpoints(); 
        use INIT_SAL() macro to zero-out new sal structures; 
        make resolve_sal_pc() fix up the sal's section as well as its pc; 
        match on section + pc in clear_command() and delete_breakpoint(); 
        account for overlay sections in insert_breakpoints(), 
        remove_breakpoint() and breakpoint_re_set_one();
        all this to support overlays where a PC is not unique.
        * exec.c: change xfer_memory() to handle overlay sections.
        * findvar.c: change read_var_value() to handle overlay sections.
        * frame.h: declaration for block_for_pc_sect() [blockframe.c].
        * infcmd.c: jump_command() warns against jumping into an overlay
        that's not in memory.  Also use INIT_SAL() to initialize sals.
        * infrun.c: wait_for_inferior() sets a flag to invalidate cached
        overlay state information; Also use INIT_SAL() to init sals.
        * m32r-rom.c: modify load routines to use LMA instead of VMA.
        * m32r-stub.c: mask exit value down to 8 bits; screen out any
        memory read/writes in the range 600000 to a00000, and ff680000
        to ff800000 (hangs because nothing is mapped there); fix strcpy().
        * maint.c: maintenance command "translate-address" supports overlays.
        * minsyms.c: lookup_minimal_symbol_by_pc_sect() supports overlays.
        * objfiles.[ch]: add ovly_mapped field to the obj_section struct;
        this constitutes gdb's internal overlay mapping table.  Add macro
        ALL_OBJSECTIONS() to loop thru the obj_structs and look at overlays.
        Add function find_pc_sect_section().
        * printcmd.c: modify print_address_symbolic() with overlay smarts;
        modify address_info() with overlay smarts; add function sym_info() 
        to support the INFO SYMBOL command (translate address to symbol(s));
        modify disassemble_command() to work on unmapped overlays.
        * source.c: use INIT_SAL() to initialize sals.
        * symfile.[ch]: change generic_load() to use section's LMA address
        instead of VMA address, for overlay sections.
        Add numerous functions for finding a PC's section / overlay, 
        translating between VMA and LMA address ranges, determining if an
        overlay section is mapped, etc.  Add several user commands for
        overlay debugging.  Add support for a "generic" form of automatically
        reading overlay mapping info from the inferior (based on the default
        (simple) overlay manager which Cygnus provides as an example).
        * symtab.[ch]: add functions find_pc_sect_symtab(), 
        find_pc_sect_psymtab(), find_pc_sect_psymbol(), find_pc_sect_line()
        for lookup; modify lookup_symbol and decode_line_1() to use them;
        modify find_function_start_sal() to account for overlay sections;
        add macro INIT_SAL() for initializing struct symtab_and_line.
        * target.c: fix a comment in the declaration of target_ops.

Thu Apr  3 10:31:12 1997  Mark Alexander  <marka@cygnus.com>

        * mips-tdep.c (mips_in_call_stub, mips_in_return_stub,
        mips_skip_stub, mips_ignore_helper): New functions for dealing
        with MIPS16 call/return thunks.
        (mips_init_frame_pc_first): New function to implement
        INIT_FRAME_PC_FIRST macro; includes code from old macro plus
        new code to skip over MIPS16 thunks.
        (mips_frame_chain): Skip over MIPS16 thunks.
        * config/mips/tm-mips.h (mips_in_call_stub, mips_in_return_stub,
        mips_skip_stub, mips_ignore_helper): Declare.
        (IN_SOLIB_CALL_TRAMPOLINE, IN_SOLIB_RETURN_TRAMPOLINE,
        SKIP_TRAMPOLINE_CODE, IGNORE_HELPER_CALL): New macros that invoke
        the above functions.
        (INIT_FRAME_PC_FIRST): Change to invoke mips_init_frame_pc.
        (mips_init_frame_pc): Declare.
        * infrun.c (wait_for_inferior): Use new IGNORE_HELPER_CALL macro
        to decide if certain library function calls should be ignored.

Wed Apr  2 14:16:51 1997  Doug Evans  <dje@canuck.cygnus.com>

        * remote-sim.c (gdbsim_open): Check return code from sim_open.
        Update call to sim_open (new arg SIM_OPEN_DEBUG).

start-sanitize-gdbtk
Tue Apr  1 15:04:21 1997  Jason Molenda  (crash@godzilla.cygnus.co.jp)

        * configure.in (gdbtcl): Create soft-link for gdbtcl/ directory instead
        of gdbtk.tcl.

end-sanitize-gdbtk      
Mon Mar 31 14:55:53 1997  Ian Lance Taylor  <ian@cygnus.com>

        * gdbinit.in: New file.
        * .gdbinit: Remove.
        * configure.in: Generate .gdbinit from gdbinit.in.
        * configure: Rebuild.

start-sanitize-tic80
Sun Mar 30 12:28:24 1997  Fred Fish  <fnf@cygnus.com>

        * config/tic80/tic80.mt: Disable using the simulator
        until it is ready.

end-sanitize-tic80
Sat Mar 29 13:57:20 1997  Fred Fish  <fnf@cygnus.com>

        * COPYING: Install new version of file from FSF.
        * copying.c (show_copying_command): Update FSF address.

Fri Mar 28 18:33:41 1997  Ian Lance Taylor  <ian@cygnus.com>

        * Makefile.in (distclean): Remove .gdbinit.

start-sanitize-tic80
Fri Mar 28 15:37:30 1997  Fred Fish  <fnf@ninemoons.com>

        * config/tic80/tm-tic80.h (NAMES_HAVE_UNDERSCORE): Define.

end-sanitize-tic80
Fri Mar 28 15:38:04 1997  Mike Meissner  <meissner@cygnus.com>

        * remote-sim.c (gdb_os_{,e}vprintf_filtered): Change stdarg type
        to va_list from void *, since va_list might not be a pointer
        type.

start-sanitize-gdbtk
Fri Mar 28 17:04:02 1997  Jason Molenda  (crash@godzilla.cygnus.co.jp)

        * Makefile.in (gdbtk.o): look for GDBTK_LIBRARY in $(datadir) by
        default, not $(srcdir).

end-sanitize-gdbtk      
Thu Mar 27 14:21:46 1997  Mark Alexander  <marka@cygnus.com>

        * remote-mips.c: Clean up comment and extraneous semicolon
        for mips_monitor_prompt variable.

Thu Mar 27 12:46:58 1997  Mark Alexander  <marka@cygnus.com>

        * remote-mips.c: Add `set monitor-prompt' command.

Wed Mar 26 06:47:44 1997  Mark Alexander  <marka@cygnus.com>

        Fix from Peter Schauer:
        * mdebugread.c (parse_procedure): Set address of procedure to
        block start; this fixes problems with shared libraries introduced
        by change of Mar 21.

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): 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.

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.

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.

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".

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

        * gdbtk.c (call_wrapper):  Clear running_now if an error occurs.

end-sanitize-gdbtk
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.

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.

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
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