Subversion Repositories openrisc

Fri Dec 28 00:13:42 1990  John Gilmore  (gnu at cygint)

        Further stabilization for the Intel 960.

        * Makefile.dist: Parameterize the location of the "include"

        and "bfd" directories, as well as "getopt".  Add symfile.c.

        Link in both dbxread and coffread.  Fix up "make depend" to

        rewack the locations of include, bfd, and getopt in its output.

        * README:  Document moving include files, improve some of

        the other doc.

        * coffread.c:  Move common code out to symfile.c.  Change

        symbol_file_command style interface to use new *_symfile_init

        and *_symfile_read interface under BFD.  Use BFD internal

        info to locate line table, symbols, etc.

        * core.c (core_fetch_registers):  Rename to get_core_registers

        to avoid confusion with fetch_core_registers.

        (register_addr):  Move to coredep.c, which is already machine

        dependent.  This leaves core.c pretty clean of dependencies.

        * coredep.c (register_addr):  Accept this routine from core.c.

        * dbxread.c: Move common code (with coffread.c, etc) into new

        symfile.c.  Each psymtab now contains a pointer to the

        format-dependent function that knows how to read it in.  Make

        some things static.

        (dbx_psymtab_to_symtab): Renamed from psymtab_to_symtab_2.

        (process_one_symbol): Add code to complain about a "compiler bug

        we muzzle here", if we actually see it.

        * eval.c (evaluate_subexp):  Insert missing "break" statements

        in code that determines whether a variable is an lvalue in

        memory, register, or whatever.  I detected this via a compiler

        bug in which it *almost* mashed out the whole switch statement.

        * gdb-int.texinfo:  Add minor sections on configuring gdb for

        release, and about the README file.

        * infcmd.c (registers_info):  Fix formatting somewhat.  Still

        not as pretty as before, but it handles byte swapping.

        * remote-nindy.c: If data cache routines are interrupted while

        waiting for the remote end, be sure that any uninitialized cache

        blocks are on the free list, not on the valid list!

        * symfile.h: Flesh out this header file with all the various

        routines and variables that have been merged in from dbxread.c

        coffread.c, and symtab.c to symfile.c.

        * symfile.c: New file, containing code common to dbxread.c,

        coffread.c, and some code from symtab.c.  All generic code for

        reading symbol files should be in here now.

        (unrecord_misc_function):  Remove unused function.

        * symtab.h:  Remove file-reading things to symfile.h.

        * symtab.c:  Remove file-reading things to symfile.c.

        * tm-i960.h:  Fix FRAME_CHAIN types; define PRINT_RANDOM_SIGNAL

        to decode i960 fault types.

        * target.h, remote.c, remote-eb.c, remote-vx.c, remote-nindy.c,

        target.c: Change type of the "resume" function from int to void,

        since its result was never used.

Sat Dec 22 02:51:40 1990  John Gilmore  (gnu at cygint)

        * main.c:  Replace "stupid" with "caution"; you now "set caution

        on or off".

        * printcmd.c (print_scalar_formatted):  Fix typo in 'g' format

        * infcmd.c (do_registers_info):  Call val_print to deal with the

        byte order of the registers being printed.  FIXME, this makes

        the formatting of the output uglier.

        * infcmd.c (wait_for_inferior):  If PRINT_RANDOM_SIGNAL is

        defined, call it for signals the debugger doesn't itself use.

        The i960 uses this for more detailed fault information.

        * remote.c (remote_open):  If arg is null, print help rather than

        dumping core.

        * sparc-xdep.c (register_valid):  Avoid declaring size, since

        various modules will think of various sizes depending on the

        architecture of their tm-file.  FIXME, we need protection against

        actually entering one of those modules, which would clobber

        storage if not for the target architecture compiled into gdb.

        * stack.c (up_command, down_command):  Always print the frame

        you arrive at.

        (up_silently_command, down_silently_command):  New commands

        for use in scripts.

        * i960-pinsn.c (reg), i960-tdep.c:  Lint.

        * i960-tdep.c (i960_frame_chain_valid): Lookup_symbol now takes

        more parameters than it used to.

        * findvar.c (registers):  Increase slop to 256 bytes, which should

        protect us against even most RISC machines with large register

        sets.

        (locate_var_value):  Move declaration inside related ifdef.

        * remote-nindy.c ():  Use TIOCSETN rather than TIOCSETP

        throughout, to avoid throwing away buffered input from the board.

        (nindy_wait):  Supply_register takes addr_of_value, not value.

        (i960_print_fault):  Renamed from i80960_fault.

        (nindy_fetch_registers):  Avoid have_regs stuff, just get them.

        (nindy_store_registers):  Avoid regs_changed stuff, just stuff

        them.

        (nindy_create_inferior):  Don't bother to write PC_REGNUM since

        we can set the PC in the call to proceed().  Unpush nindy_ops

        before pushing it on top, to avoid message to user.  Eliminate

        commentary from Unix machines that just misleads here.

        (reset_command):  Fix error message to suggest target command.

Wed Dec 19 11:03:56 1990  John Gilmore  (gnu at cygint)

        Release 3.92.5 as frozen.

        Stabilize the merged release...with help from lint, Saber C,

        gcc -W, etc.

        Everywhere:  Add include files needed to declare return types

        of functions called.

        * gdb.texinfo:  Roland Pesch is documenting gdb, glory be!

        * breakpoint.h:  Add undeclared breakpoint functions, and some

        functions for display handling since I couldn't think of a better

        .h to put them in.

        * breakpoint.c (insert_breakpoints):  Make code for disabling

        shared library bkpts more likely to work.  It's used when we

        rerun a program and stop before the shared library has been

        mapped in.

        (breakpoint_cond_eval, bpstat_stop_status):  Pass arg as int,

        cast from pointer, so it squeezes through catch_errors.

        (bpstat_stop_status):  Fix logic broken some time ago.  We now

        always create a bpstat if the stop address matches a breakpoint,

        even if we don't stop there -- just like the old code used to do

        before I got my fingers into it (sigh).

        (breakpoint_1):  Print "ignore count" after "stop only if"

        condition, since that's how it actually works.

        (mention):  Handle watchpoints as well as breakpoints.

        (watch_command):  use set_raw_breakpoint and mention to do most

        of the work (and initialize all the fields!).  Only pass one

        arg to parse_c_expression, since that's all it takes.

        * command.c (not_just_help_class_command):  Rename arg to args

        since we ignore "unused argument" warnings on vars named "args".

        inflow.c (child_terminal_info):  ditto.

        infptrace.c (kill_inferior):  ditto

        main.c (catch_errors, version_info, quit_command, pwd_command,

        source_command, dump_me_command, editing_info,

        set_history_size_command, set_history, show_history,

        set_verbose): ditto

        stack.c (locals_info):  ditto

        target.c (target_files_info):  ditto

        valprint.c (set_input_radix, set_output_radix):  ditto

        * core.c:  Remove old variables for handling core and exec file

        sections (data_start, data_end, stack_start, stack_end,

        reg_stack_start, reg_stack_end, reg_stack_offset, text_start,

        text_end, exec_data_start, exec_data_end, text_offset,

        exec_data_offset, data_offset, stack_offset).  They're

        superseded the more general build_section_table and

        xfer_memory.

        (get_exec_file):  Mention the `file' command.

        (read_memory_check):  Rename to memory_error, and only call it

        in the case of an actual error.

        (read_memory, write_memory):  call memory_error.

        (core_fetch_registers):  Register section name is ".reg".

        coredep.c:  Remove a bunch of crud now that all this file does

        is pull the registers out of a core file.

        (fetch_core_registers):  Rewrite to actually work, I hope.

        dbxread.c:  Use a.out.gnu.h, not system a.out, now.

        Replace index() with strchr().  Remove all the pre-BFD macro

        definitions for accessing the symbol file.

        (struct dbx_symfile_info):  Encapsulate the information that

        dbx_symfile_init needs to pass to dbx_symfile_read in this

        struct.

        (dbx_new_init, dbx_symfile_init, dbx_symfile_read,

        dbx_symfile_discard): Rearrange symbol file reading to divide

        the format-specific part from the format-independent part,

        leaving the format-independent part such as file name expansion

        and opening in symtab.c.  This replaces

        partial_symbol_file_open and partial_symbol_file_read.

        Symbol_file_read, add_file, add_file_target_command,

        add_file_addr_command move to symtab.c.  Pass an explicit

        "mainline" flag for when reading the main symbol table, rather

        than relying on the offset address to be zero or nonzero.

        (dbx_symfile_read): Don't allow void *'s to be printed as

        typedefs.

        (SWAP_SYMBOL):  Use bfd routines to byte-swap the symbols.

        (ADD_PSYMBOL_TO_LIST):  Make the "function call rather than

        macro" debug version really work.

        (read_dbx_symtab):  Remove unref'd parameter inclink.

        Avoid swapping N_SLINE symbols, for speed.

        Merge N_TEXT!N_EXT case with the other external symbol

        definitions' case. Add comments.

        (start_psymtab):  Allocate the symfile name in the psymtab on

        the psymbol_obstack, rather than using the caller's storage.

        (end_psymtab): Only allocate a dependencies list if there are

        more than zero.

        (psymtab_to_symtab_2):  Use BFD when reopening file to read

        its symbols for real.

        (read_struct_type):  Add FIXME comments where it needs work

        for C++ bogosity.

        (read_huge_number):  Add FIXME about overflows.

        (read_range_type):  Add FIXME about comparing a long to 1<<32.

        * coffread.c:  Minor changes to move things closer to the new

        regime with symtab.c and dbxread.c   Major work is still needed

        here.

        * exec.c (exec_file_command):  Remove old variables (see core.c

        above).

        (xfer_memory): If memory transfer is right at the end of a

        section, don't lose.

        * findvar.c (get_saved_register):  If value is in a real

        register, LVAL is lval_register, not lval_memory.

        frame.h:  Declare print_sel_frame and record_selected_frame.

        gdb-int.texinfo:  New file, for GDB internals documentation.

        Very simple, unformatted doc of cleanups is there for now.

        gdbcore.h:  Remove obsolete variables that described a.out

        section addresses and offsets.  (See core.c above.)

        Declare fetch_core_registers and registers_fetched.

        getopt.c:  Declare char *alloca(); even on SPARC.

        infcmd.c (run_command):  Call target_kill rather than

        kill_inferior.

        (step_command, next_command, stepi_command, nexti_command):

        Declare from_tty parameter even though we don't use it.

        (run_stack_dummy):  argument BUFFER is a char array, not

        a pointer to REGISTER_TYPE.

        (finish_command):  using_struct_return needed a value *,

        not a struct symbol *.

        * infptrace.c (child_xfer_memory):  To avoid dependency on

        where sections are in memory, try PT_WRITE_D and if that fails,

        try PT_WRITE_I.  Most Unixes don't care which you use.

        * infrun.c (step_resume_break_shadow):  Change to array to

        match other breakpoint shadow storage.

        (clear_proceed_status):  Pass address of bpstat to

        bpstat_clear, not the bpstat itself.

        (child_create_inferior):  FIXME comment about if the child

        exits.

        (start_inferior):  Remove old function.

        (child_open):  Use target_kill rather than kill_inferior.

        (wait_for_inferior):  Ditto.

        (insert_step_breakpoint, remote_step_breakpoint):  Use

        new step_resume_break_shadow.

        * inftarg.c (child_wait):  If all child processes die,

        pretend that the one being waited for exited with signal 42.

        * main.c (command_line_input):  When scanning for comments,

        don't coredump on unclosed quotes.

        (quit_command):  Use target_kill rther than kill_inferior.

        (_initialize_main):  Rename class_user from "user" to

        "user-defined".

        * printcmd.c (print_command_1):  Initialize "fmt" if no format

        is specified by the user.

        (print_frame_args):  Only add to args_printed if we are

        actually fetching args from the stack (avoiding undefined

        arg_size).

        (_initialize_printcmd):  Remove bogus \{ from string.

        * remote-eb.c (eb_open):  Avoid coredump on no argument.

        * remote-nindy.c:  Bring out of Intel environment into new

        target environment.  Remove all conditional compilation on

        I80960.  Massive hacking throughout.

        (nindy_xfer_inferior_memory):  New routine stolen from

        infptrace.c.

        (nindy_create_inferior):  New routine pieced together, probably

        not quite working yet.

        (nindy_ops):  New target_ops struct for nindy.

        * remote-vx.c:  Use write_memory rather than target_write_memory

        to get error checking.

        (vx_add_file_command, vx_open): Use symbol_file_add rather than

        add_file.

        (vx_create_inferior):  Use target_terminal_ours...

        * signame.c (_initialize_signame):  Always initialize, since

        we need the table for things other than psignal.

        * solib.c (solib_add):  Use symbol_file_add, not add_file.

        (solib_address):  Return boolean result rather than struct

        pointer which nobody else knows the type of.

        * sparc-tdep.c, valops.c:  Use write_memory rather than

        target_write_memory, to get error checking.

        * stack.c (locals_info, catch_info, args_info,

        get_selected_block, frame_command, up_command): Use

        target_has_stack, rather than have_inferior_p or

        have_core_file_p.

        * sun3-xdep.c (fetch_core_registers):  Rewrite for new BFD regime.

        * symfile.h:  New file, defining the interface between the

        generic and object-file-specific symbol reading code.

        * symtab.c:  Move generic symbol-reading interface to symtab.c,

        from dbxread.c, coffread.c, mipsread.c, etc.  Add symtab_fns

        table to map BFD targets to symbol-reading modules in GDB.

        Change index to strchr.

        (lookup_struct_elt_type):  Use error() rather than hand-made

        simulations thereof.

        (lookup_partial_symbol):  Speedup slightly when length == 0.

        (symbol_file_add):  New function.

        (symbol_file_command):  Call it.

        (symfile_open, symfile_init):  New function.

        (add_file_target_command, add_file_addr_command): moved from

        dbxread.c.

        * target.c (target_command):  use target_kill.

        * target.h (target_files_info):  Don't declare, never called

        from outside.

        * tm-sun2.h, tm-sun3.h (STACK_END_ADDR): Use system include

        files to determine stack end address.

        * valarith.c (value_x_binop, value_x_unop): Change error message

        to be more useful.  Pass proper argument to value_struct_elt.

        * valops.c (value_assign):  FIXME comment that long long

        bitfields will break here.

        * Makefile.dist:  Add symfile.h, remote-nindy.c, remote-eb.c.

        Update `make saber_gdb' to work better.

        * TODO:  A woman's work is never done.

        * cplus-dem.c, environ.c, inferior.h, infrun.c, inftarg.c,

        main.c, obstack.c, printcmd.c, remote-eb.c, remote-nindy.c,

        remote-vx.c, remote.c, solib.c, source.c, sparc-pinsn.c,

        sparc-tdep.c, sparc-xdep.c, symmisc.c, symtab.c, symtab.h

        target.c, terminal.h, tm-sparc.h, tm-sunos.h, utils.c,

        valops.c, valprint.c, exec.c:  Lint.

Wed Dec 12 23:44:15 1990  John Gilmore  (gnu at cygnus.com)

        Continuing Intel 960 port merge of GDB.

        * Makefile.dist:  Merge i960 "nindy-share" files.  Rename

        malloc.h to gmalloc.h to avoid name conflicts in /usr/include.

        Don't ship gdb.dvi in tar file.  Link gdb with init.o, not init.c.

        Wack over "make depend" so it handles files in subdirectories

        vx-share, nindy-share, bfd, and in the current directory.

        * blockframe.c (get_prev_frame_info):  Remove fatal error

        if stack not defined.

        * core.c (core_open, core_detach):  New functions that handle

        the old "core-file" command as "target core" and "detach" instead.

        (core_file_command):  Call them.

        (core_xfer_memory):  Use common routine xfer_memory.

        * dbxread.c:  Include a.out.gnu.h, not system a.out.h.

        dbxread now uses bfd for everything but symbol reading itself.

        BFD internals are used to drag out the relevant file offsets.

        (partial_symbol_file_open):  Change args all around for BFD.

        * symtab.c: Rename "value" to "val" everywhere, so we can

        #include "value.h".

        (symbol_file_command):  New command, moved from dbxread.c

        and coffread.c.  It uses BFD to read the file, then vectors

        based on its type, to dbx or coff symbol readers.

        * symtab.h:  Extern a few vars for symbol_file_command.

        * target.h:  Breakpoint takes a char * save area, not a char **.

        * valprint.c (val_print):  When unpacking bitfields, offset

        the address in gdb of the value, if it is declared with a shorter

        type.  Remove the last "runtime kludge test" of host byte order.

        * utils.c:  Remove old my_bfd_read routine.

        * stack.c (frame_info):  Use target_has_stack.  Print program counter

        register's actual name rather than "pc", since it's called the

        "ip" (instruction pointer) on the i960 (sigh).

        * target.c (target_command):  Add command for selecting a target

        type and calling its open routine.  This is used for initiating

        communication with a particular target, in a generic way.

        * tm-i960.h:  Update for modern gdb.  Remove semicolons from

        various macros.  Handle reading struct return convention, and

        error-out attempts to return structs with the "return" command.

        Be sure gdb doesn't think we know how to call functions in the

        inferior.

        * i960-tdep.c:  Rename FRAME_CHAIN_VALID and FRAME_FIND_SAVED_REGS

        to i960_xxx in lower case.

        (arg_address):  Circumvent errors due to LOC_ARG_BLOCK

        not being defined yet.

        * remote.c (remote_open):  Call start_remote to initialize

        wait_for_inferior during open.

        (remote_xfer_inferior_memory):  Return length written rather

        than errno value.

        * remote-vx.c (target_command -> vx_open):  Use new generic

        target command.

        * remote-eb.c, inftarg.c, exec.c: ditto.

        * infrun.c:  Fix comments.

        (attach_program -> child_open):  Use new generic target command.

        (wait_for_inferior):  Clear saved register values before target_wait,

        so target_wait can set some of them if convenient.

        * infptrace.c (fetch_inferior_registers, store_inferior_registers):

        Return success indicator, not void.

        (child_xfer_memory):  Avoid fetching initial word if we'll

        overwrite it anyway.

        * infcmd.c (attach_command):  Use new generic target open routine.

        (_initialize_infcmd):  Update doc on attach and detach commands.

        (do_registers_info):  Merge in a byte-order problem as a FIXME

        comment.

        * findvar.c (find_saved_register):  Avoid problem in current frame.

        (read_relative_register):  Ditto.

        (write_register):  Convert byte order on the way out.

        * exec.c (file_command):  Add.

        (add_to_section_table, exec_command):  Use new bfd_map_over_sections.

        (xfer_memory):  Common function between core_xfer_memory and

        exec_xfer_memory.

        (exec_xfer_memory):  Use it.

        * pn-opcode.h:  Document that a "PN" is a Gould PowerNode.

        * breakpoint.c, breakpoint.h, symtab.h, value.h, frame.h, utils.c,

        valops.c, stack.c, target.c, sparc-xdep.c, source.c, printcmd.c,

        infcmd.c, i960-pinsn.c, eval.c, defs.h:  lint and gcc -Wall.

Sun Dec  2 16:45:06 1990  John Gilmore  (gnu at cygnus.com)

        Merge Intel 960 port of gdb, continuing...

        * dbxread.c (partial_symbol_file_open, partial_symbol_file_read,

        symbol_file_command):  Pass from_tty arg to hush 'em up.

        * coffread.c (symbol_file_command):  Avoid output if from_tty != 1.

        Add magic numbers for 960 COFF format.

Fri Nov 30 09:18:20 1990  John Gilmore  (gnu at cygnus.com)

        Merge Intel 960 port of gdb, from Intel "1.2" release.

        CHANGE_LOG entries from their port, which was based on

        gdb+-2.8.0:

    Thu Sep  6 11:02:22 PDT 1990

        Remove temp file if download is interrupted.

    Wed Aug  1 09:08:33 PDT 1990

        Now uses binary protocol to talk to NINDY.

        Old hex protocol (NINDY 2.13 and older) supported with -O switch.

        Times out after 5 seconds when trying to talk to NINDY.

    Tue May 29 12:54:49 PDT 1990

        Added variable baud rate (-b switch).

        Source code reorganization.

    Thu Apr 26 11:09:55 PDT 1990

        More cleanup of batch mode;  specifically, execute "-s", "-e", and

        "-se" switches as soon as they are encountered on the invocation line.

    Fri Apr 20 13:47:15 PDT 1990

        Add -brk switch.

    Thu Apr 19 09:54:28 PDT 1990

        Add 'reset' command.

    Wed Apr 18 09:48:07 PDT 1990

        After opening remote tty, wait for 1 second to go by without input

        from it before trying to talk to NINDY (fixes problems with the

        Heurikon HK80/V960E).

    Mon Apr  4 16:33:05 PDT 1990

        Some output was not being suppressed in 'batch' mode.

    Thu Mar 22 15:31:11 PST 1990

        Ask user if old symbol table should be deleted when new file is

        downloaded.

        Allow user to run a program downloaded before gdb960 was brought up.

        Correct "exec-file" help message for i80960 context.

        Correct bug in calculating user space address:  could occasionally

        corrupt user program.

        Make sure to zero low-order bits in rip's because of bug in 960CA

        A-step part:  could cause operation faults when "next"ing across

        a function call.

        Correct bug that made it impossible to get source line numbers for

        code loaded at addresses higher than 0x7fffffff.

    Wed Jan 10 12:43:22 PST 1990

        Open remote tty for exclusive use.

    Fri Jan  5 12:14:42 PST 1990

        Correct disassembly (CA manual was right after all):

        opcode for sysctl is 0x659

    Mon Oct 23 12:03:04 PDT 1989

        Use G960BASE and G960BIN environment variables to find 'sx' utility.

    Mon Oct 16 14:15:09 PDT 1989

        "sfr0"-"sfr31" should have been named "sf0"-"sf31"

    Mon Oct  2 15:56:31 PDT 1989

        Added 960CA disassembly support.

        To simplify maintenance:

                - eliminated use of symblic links on pinsn.c: use i960-pinsn.c

                        directly instead.

                - eliminated opcode.h: incorporates tables into i960-pinsn.c

                - moved 960-specific routines from i960-pinsn.c to i960-md.c

                - made disassembly interface identical to that in gdmp960.

Wed Nov 28 21:32:48 1990  John Gilmore  (gnu at cygint)

        * target.h: Allow targets to stack.  Add target_has_memory,

        _registers, etc.  Restructure memory access and "info files"

        to walk the target stack.

        * exec.c, core.c, inftarg.c, remote.c, remote-vx.c, remote-eb.c,

        target.c:  Change tables to match target.h.

        * inflow.c (child_mourn_inferior):  pop child_ops.

        (generic_mourn_inferior):  Use new has_stack flag.

        * infptrace.c (child_xfer_memory): New memory regime.

        * inftarg.c (child_files_info): New "info files" regime.

        * remote-eb.c: New memory regime, new info files.

        * remote-vx.c: New memory regime, new info files.  Now use

        separate targets for VxWorks attachment to machine, and

        actually running a process under VxWorks, since one has

        stack & execution & regs and the other doesn't.

        * remote.c: New memory regime, new info files.

        * sparc-xdep.c (fetch_core-registers):  New memory regime.

        * target.c:  New routines and support for stacked targets,

        new memory regime, new info files regime.

        Generalize section handling for an arbitrary number of sections,

        including use of the new BFD (binary file) library.

        * gdbcore.h: Add struct section_table.

        * exec.c (build_section_table):  Iterate all sections and

        record what gdb needs to know about them.

        (exec_command):  Use it.

        (exec_xfer_memory):  Use the table.

        (exec_files_info):  Print the table.

        * core.c (core_file_command, core_xfer_memory, core_files_info):

        Likewise.

        * source.c (find_source_lines):  Use bfd_get_mtime.

        * dbxread.c:  Quick changes to make it compile with new BFD.

        * utils.c (error):  Avoid using bfd_error in generic routines.

        * core.c (core_fetch_registers):  Get from the ".regs" section of

        the BFD core file.

        * sparc-xdep.c (fetch_core_registers):  Use the .regs info.

        * inferior.h (attach_flag):  Export.

        * infcmd.c (run_command):  use new target_create_inferior.

        * infrun.c (child_create_inferior):  Don't return result.

        * Makefile.dist (VERSION):  3.91.4.

Fri Nov 23 28:15:38 1990  John Gilmore  (gnu at cygint)

        * breakpoint.c (bpstat_num):  Handle breakpoints which have

        since been deleted, such as temporary breakpoints.

        infcmd.c (program_info):  ditto.

        * core.c (core_file_command):  Display the frame where the core

        dump occurred.

        * main.c:  lint.

        * remote-vx.c (target_command):  Merge in target command from

        targ-vx.c.  A few other cleanups.

        * TODO, Projects:  Lots more stuff to do...

Fri Nov 23 18:15:38 1990  John Gilmore  (gnu at cygint)

        Massive changes to wall off the remote-debugging interface

        behind a function vector.  The port to handle VxWorks targets

        is also part of this.

        All files:  Replace references to renamed functions,

        remove references to remote_debugging, remove references to

        have_include_file, have_core_file in favor of target_has_stack,

        target_has_memory, etc.

        * Modularize the breakpoint interface.

        breakpoint.h (BREAKPOINT_MAX):  New define sets max length of

        a breakpoint instruction.

        breakpoint.c: struct breakpoint's shadow_contents now sized as

        BREAKPOINT_MAX.

        (insert_breakpoints):  Vector to target to install breakpoints.

        (remove_breakpoints):  Vector to target here too.

        Remove REMOTE_SA_SPARC kludges and other remote_debugging.

        sparc-tdep.c (single_step):  Use new breakpoint interface for

        the single-step breakpoints.

        mem-break.c (memory_insert_breakpoint, memory_remove_breakpoint):

        New file, contains routines to insert and remove breakpoints by

        reading out the old contents and later replacing them.  This is

        how ptrace breakpoints work, and many remote systems as well.

        * tm-vxworks68.h:  New config file, overrides a few things for

        Wind River's preferences.

        * target.h:  New file, for transfer vector used to talk to the

        inferior (child, attached, core, exec, remote, etc).  All accesses

        to the thing being debugged should come through these vectors.

        target.c:  New file, routines to handle transfer vector.

        (various files):  Add transfer vectors XXX_ops for the various

        targets and pseudo-targets (core files, etc) we support.

        * breakpoint.c (bpstat_stop_status):  Further explorations of

        watchpoints and why things don't work all the time.

        (bpstat_alloc):  New fn to allocate a bpstat and chain it.

        * config.gdb:  Only add "source ${srcdir}/.gdbinit" to

        the local gdbinit if it doesn't already have it.

        * core.c (core_ops):  add and install.

        Allow core debugging without exec file.

        * dbxread.c (free_and_init_header_files):  Merge two fns.

        (end_symtab):  Free named symbol table when a new version comes in.

        (read_dbx_symtab):  Relocate all kinds of symbols with base

        address.  First step toward handling different text, data, bss

        reloc.

        (add_file_addr_command):  Renamed add_file_command.

        (add_file_command):  Vector to remote handler.

        Add "load" as an alias for "add-file" command.

        * defs.h:  Allow "volatile" to be used in non-ANSI; use it for

        non-returning functions.

        * exec.c:  Add exec_ops, and push it as a target when an exec

        file is specified.

        * infcmd.c (run_command):  Pass executable file name and arg list

        separately when starting an inferior.  Permit "run" when no exec

        file is specified, for VxWorks.

        (detach_command):  Move to child_detach in inftarg.c.

        * inftarg.c:  New file.  Unix-child-specific routines, and the

        child_ops structure.

        * inferior.h (registers):  Export "registers" as the way for

        target dependent register handlers to find gdb's local copy of

        the registers.  Rename "stop_after_attach" to "stop_soon_quietly"

        since it is now used by places that want wait_for_inferior to

        handle the grunge but want to see every trap from the inferior.

        * inflow.c (create_inferior):  Pull out, and merge into infrun.c.

        Eliminate remote_debugging hooks in terminal handling.

        * infrun.c:  Replace start_inferior with child_create_inferior.

        Move all the hair of Unix shells and ptrace idiosyncracies into

        child_create_inferior, so remote handlers don't have to deal.

        Remove running_in_shell.  Rename stop_after_attach to

        stop_soon_quietly, and use it in a few other places where we want

        to just call wait_for_inferior and get control back on the first

        trap.  trap_expected now never takes a value > 1.

        (init_wait_for_inferior):  Initialize static vars when a new

        process is created.

        main.c (gdbinit):  Add new hook for .gdbinit file name, let

        it be overridden by config files as GDBINIT_FILENAME.

        (DEFAULT_PROMPT):  Add new hook for overriding (gdb) prompt.

        Both of these are used for VxWorks gdb.

        mcheck.c:  rename include file "gmalloc.c" to avoid problems

        with system include file "malloc.c".

        param-no-tm.h:  New include file, same as param.h but does not

        include the default "tm.h" file.  This is used in files where

        the target is known, e.g. remote-eb.c or sparc-xdep.c.

        param.h:  Now just a shell that includes tm.h and param-no-tm.h.

        remote-vx.c:  New file, VxWorks remote debugging support.  Uses

        RPC routines that are shared with the target system, in directory

        ${srcdir}/vx-share.

        remote.c:  Vectorize remote interface.

        source.c:  Globalize source_path, and make an alias "l" for "list"

        since we now have the "load" command.

        sparc-xdep.c:  Use new param-no-tm.h.

        symmisc.c (free_named_symtab):  Add new function from Wind River.

        However, ifdef it out for now while we think about what it should

        really be doing.

        tm-sun3.h, xm-sparc.h, xm-sun3.h, xm-symmetry.h: Move

        PREPARE_TO_STORE to

        the xm- file, and change its name to CHILD_PREPARE_TO_STORE, since

        non-Unix-children handle this with their own code in the target

        transfer vector.

        Makefile.dist:  Roll version to 3.92.3.  Add vx-share stuff to

        source and target lists.  Add vx-share to default list of include

        directories.  Add new files to src and target lists: mem-break,

        target, inftarg, remote-eb, remote-vx, targ-vx.  Be sure the

        ${srcdir} versions of munch and createtags are used.

        * valops.c (find_function_addr):  Split out of call_function.

        (call_function_by_hand):  Rename call_function; this function

        calls functions in the target by laboriously patching the target

        word-by-word with the right stack, args, regs, etc.

Mon Nov  5 17:29:10 1990  John Gilmore  (gnu at cygint)

        Handle AMD 29000 a bit better.

        * remote-eb.c (readchar):  Mask received char log to make it readable.

        (remote_start):  Pass arguments down to executing program.

        Make startaddr unsigned.

        infrun.c (start_inferior):  Accept args, pass them to

        remote_start.

        infcmd.c (run_command):  Pass args down to start_inferior.

        * tconfig/am29k-aout, tconfig/am29k-coff:  New files specifying

        the target object file format.

        tm-29k.h:  Pay heed to COFF_ENCAPSULATE.

        * am29k-pinsn.c (print_insn):  Print 0x on hex numbers in disassembly.

        am29k-tdep.c (examine_prologue):  Better checking of function prefixes.

Sun Oct  7 18:20:45 1990  John Gilmore  (gnu at cygint)

        * Makefile.dist (VERSION):  Roll version to 3.91.9 and freeze.

        * TODO:  We did a few things, we have more to do though.

        * xm-sparc.h (CLEAR_DEFERRED_STORES):  Define.

        * inflow.c (inferior_died):  Clear deferred stores.

        * Debug problems with dummy frames and calls to the inferior.

        * tm-sparc.h (PUSH_DUMMY_FRAME, POP_FRAME):  Move to sparc-tdep.c.

        * sparc-tdep.c (do_restore_insn):  Simplify.

        (sparc_frame_find_saved_regs):  Simplify and fix what we find.

        (sparc_push_dummy_frame):  Simplify and fix what we push.

        (sparc_pop_frame):  Slightly more hair here, deciding whether

        we are restoring a saved PC or returning to a return address in %i7.

        * sparc-xdep.c (read_inferior_registers):  Debug if valid reg is read.

        * utils.c (xmalloc, xrealloc):  Return type depends on __STDC__.

        * symtab.h (xmalloc): ditto, for obstack_chunk_alloc.

        * obstack.h (chunkfun): ditto.

        * defs.h (xmalloc, xrealloc): ditto

        * utils.c (quit):  Grab the terminal from the child if necessary.

        * inflow.c (term_status_command): Rename to term_info, change

        to "info terminal".

        * sparc-pinsn.c (print_insn):  Disassembly prefers real instructions.

        (is_delayed_branch):  Speed up.

        * sparc-opcode.h: Add ALIAS bit to aliases.  Fix up opcode tables.

        Still missing some float ops, and needs testing.

        * Support for input and output radixes other than base 10

        * defs.h (input_radix, output_radix):  Declare.

        * expread.y (yyparse, parse_number):  Handle changes of input

        radix, and ambiguous names-or-numbers in radixes >10.

        * printcmd.c (print_scalar_formatted):  Print formatted hex

        numbers in varying column widths.

        * valprint.c (val_print):  Use output_format to print scalar ints.

        (set_input_radix, set_output_radix, set_radix):  Create.

        (set_output_radix):  Set output_format from output_radix.

        (_initialize_valprint):  add `set radix' but leave the others off.

        * main.c (execute_command): Let stupid questions be turned off.

        (_initialize_main): Handle "set stupidity", etc.

        * main.c, inflow.c, inferior.h, frame.h, command.c, defs.h,

        sparc-pinsn.c, sparc-xdep.c, value.h, valops.c, values.c:  Lint.

Tue Oct  2 11:20:02 1990  John Gilmore  (gnu at cygint)

        * TODO, Makefile.dist, ChangeLog:  Freeze for 3.91.8 release.

        bfd stuff is still screwed up, but with some manual work, it

        compiles.

        * breakpoint.c (bpstat_do_actions):  Start over if a command

        proceeds the inferior, since the inferior will have stopped and

        will need to have its new stop-actions taken care of.

        * dbxread.c (read_struct_type):  Expression gives Sun3 4.0.3

        compiler fits, simplify it.

        * gdb.texinfo (directory command): Doc new dir command.

        source.c (directory_command):  "dir" now puts things on the front

        of the path, moves dups up front, and handles multiple names

        on the command line, inserting each one in order.  It also

        blows away cached line and full_filename info.

        * stack.c (backtrace_command):  Skip "more stack frames follow"

        unless interactive.

        * Change #ifndef HAVE_VPRINTF to #define MISSING_VPRINTF in

        xm-convex.h, xm-hp300bsd.h, xm-isi.h, xm-merlin.h, xm-news.h,

        xm-np1.h, xm-pn.h, xm-pyr.h, xm-symmetry.h, xm-umax.h, xm-vax.h.

        The only odd one was Gould NP1, which had defined vprintf to

        "printf"!!!

        * Merge Ted Goldstein 's changes for epoch.

        printcmd.c (print_command_1): Pass 'inspect' flag down as a global

        variable, inspect_it.

        valprint.c (print_string, val_print): Use the global inspect_it

        to indicate whether to print in Epoch style or normal style.

Mon Oct  1 23:55:26 1990  John Gilmore  (gnu at cygint)

        * printcmd.c (call_command):  add an alias for the "print" command

        which runs expressions and doesn't print the result if void.

        (print_command_1): implement it.

        * command.c: Remove #if 0'd code.  Initialize all the fields

        in add_cmd ().  Rename do_nothing_command to

        not_just_help_class_command, and make it externally visible.

        command.h: add user_commands to struct.

        * main.c (define_command):  Don't overload c->function with a char

        string as well as a function pointer.

        * eval.c (evaluate_subexp):  Reinstall tiemann changes to

        calling convention of value_struct_elt () that got dropped in

        merge.

        * tm-sparc.h (FRAME_FIND_SAVED_REGS):  move to sparc-xdep.c.

        sparc-tdep.c (sparc_frame_find_saved_regs):  ditto.

        * tm-sparc.h (POP_FRAME): replace some constants with defines.

        * sparc-xdep.c (store_inferior_registers):  defer stores to regs

        until a good time (e.g. when we are about to run the child),

        saving ptrace calls.

        * infrun.c (proceed):  handle DO_DEFERRED_STORES.

        * tm-sparc.h: define DO_DEFERRED_STORES.

        * sparc-xdep.c (store_inferior_registers): when storing float

        registers, don't store stack regs too.  When storing the SP,

        however, DO store the stack regs too.  This fixes a bug in which

        the dummy frame is not recognized when a call_function finishes,

        because its frame pointer (in the stack regs) was never

        initialized.

        (read_inferior_registers):  Mark WIM and TBR and FPS and CPS valid

        even though we don't know how to read them from an inferior.

        valops.c (call_function):  Comment about storing SP.

        * infrun.c (save_inferior_status): Save away the original bpstat

        chain so it can be restored later.  Install the copied version for

        use by whoever saved the status.  It will be blow away by

        restore_inferior_status, and the original chain restored.  This is

        important for people who have pointers into the original.

        * breakpoint.c, command.h, copying.awk, dbxread.c, defs.h,

        findvar.c, frame.h, obstack.h, obstack.c, inflow.c, value.h,

        main.c, printcmd.c, sparc-tdep.c, symtab.c, valprint.c: lint

Fri Sep 28 20:32:46 1990  John Gilmore  (gnu at cygnus.com)

        * Makefile.dist: Roll version to 3.91.8.  Add bfd.h and bfdconfig.h

        temporarily to the makefile.  Add am29k-opcode.h and WHATS.NEW.

        Add stuff.c and kdb-start.c to the OTHERS list for tar files.

Fri Sep 28 19:12:12 1990  John Gilmore  (gnu at cygint)

        * Merge Mike Tiemann's multiple inheritance changes from Sun.

        Store the baseclasses in a type struct starting from array element

        dbxread.c: the above.

        (virtual_context): Add

        Read new debug information about which virtual function table

        a virtual function is from, and store it in fn_field.fcontext.

        symtab.h: Add fcontextt.  Fix baseclass indices.  Typo in

        TYPE_FN_FIELD_STATIC_P.

        symtab.c: the above.

        valops.c: the above.  Handle pointer casts of object *'s.

        (search_struct_method): Add.

        (value_struct_elt): First arg is now a pointer to a value, and is

        modified on return.

        valprint.c: the above.

        values.c (value_virtual_fn_field): Add type arg.  Handle

        offsetting to the proper object when calling virtual fns.

        The above.

        (baseclass_addr): Add valuep arg.

        * README:  Document the current state of BFD config (missing).

        * TODO, ChangeLog, Makefile.dist: Roll version.

        * WHATS.NEW: Add summary of changes since 3.5.

Thu Sep 27 16:23:12 1990  John Gilmore  (gnu at cygint)

        * dbxread.c (read_struct_type): Clear bit vectors whenever

        we allocate one.

        symtab.c (B_CLRALL): define.

        * tm-sparc.h (STORE_RETURN_VALUE): Avoid clobbering types by