Subversion Repositories openrisc

Mon Dec 30 10:57:02 1991  Per Bothner  (bothner at cygnus.com)

        Mainly stuff to improve handling of TYPE_CODE_REF values.

        * valops.c (value_addr):  If taking the addres of a

        TYPE_CODE_REF, just cast the object to the corresponding

        TYPE_CODE_PTR.  This yields correct C++ semantics, and

        preserves the location information, which has the nice effect

        that &(&R) given the location containing R.

        * values.c (value_copy):  Make non-static (used by value_addr).

        * eval.c (evaluate_subexp_for_address):  Use the default

        scheme (with value_addr) for a variable if it has TYPE_CODE_REF.

        * valops.c (value_addr), eval.c (evaluate_subexp_for_address,

        evaluate_subexp_with_coercion):  Factor out some common

        expressions into variables, for easier reading.

        * findvar.c (locate_var_value):  Remove code to handle

        TYPE_CODE_REF - it should no longer be needed.

        * valops.c (value_assign):  Do a COERCE_REF on the

        destination operand, for correct C++ semantics.

        * valarith.c (value_x_binop):  Ditto:  De-reference C++

        references in the arguments.

        * valops.c:  ANSI-fy: bcopy->memcpy, bzero->memset.

Sat Dec 28 11:30:26 1991  Per Bothner  (bothner at cygnus.com)

        * dwarfread.c, coffread.c:  Use INIT_CPLUS_SPECIFIC.

        * symtab.c (gdb_mangle_name):  Recognize and handle

        constructors specially.

        * symtab.c (check_stub_method):  Test for failure from

        cplus-demangle by calling error() instead of seg-faulting ...

Fri Dec 27 22:21:30 1991  Fred Fish  (fnf at cygnus.com)

        * defs.h:  Add definition of null_cleanup()

        * procfs.c:  Many small changes to add base support for a new

        "info proc" command (currently only printing of the address

        space mapping is implemented) and allow iteration over the

        address space mapping, calling an arbitrary function for each

        mapping (used for shared library support).

        * solib.c:  Change all ifdefs that checked for "sun" to check

        for "!SVR4_SHARED_LIBS" instead.  Rewrite lookup_base() to

        handle locating the debug base address even when not currently

        stopped at the dynamic linker entry point.

        * utils.c:  Add null_cleanup() as a known function that does

        nothing to serve as a base for possibly long cleanup chains

        with no specific "first cleanup" to serve as an anchor.

        * xm-sysv4.h:  Add define of SVR4_SHARED_LIBS

Fri Dec 27 10:11:33 1991  Per Bothner  (bothner at cygnus.com)

        * arm-opcode.h, m88k-opcode.h, pn-opcode.h, np1-opcode.h,

        pyr-opcode.h, tahoe-opcode, vax-opcode.h:  Removed -

        these are all essentially the same as the versions

        in ../include/opcode.  The remaining *-opcode.h here

        are not quite so obviously the same, and need study.

        * arm-pinsn.c, gould-pinsn.c, m88k-pinsn.c, pyr-pinsn.c,

        tahoe-pinsn.c, vax-pinsn.c:  Change so these include

        opcode/FOO.h (actually ../include/opcode/FOO.h)

        instead of the recenntly departed opcode-FOO.h files.

        * sparc-pinsn.c:  Now that we're using the much tighter

        opcode table in ../include/opcode/sparc.h, we shouldn't

        need to sort the opcodes before dis-assembly.

        * symtab.h, symmisc.c:  Make cplus_struct_default be const.

        * symtab.h, buildsym.c:  Add and use INIT_CPLUS_SPECIFIC macro.

        * symmisc.c:  Remove unused 'nfields' variable.

        * buildsym.h:  Add extern decl of unknown_symtype_complaint,

        since it used used by partial-stab.h (included two places).

        * partial-stab.h:  Re-arrange DBXREAD_ONLY #ifdefs so that

        we should never hit the default case (until new stab codes

        are added).  Hence, we can leave the complaint in the

        default case in even when DBXREAD_ONLY is off.

        * partial_stab.h: Recognize a pair of N_SO stabs (one for the

        directory, one for the filename proper) without peeking ahead.

        * dbxread.c, mipsread.c: Because of previous change, don't need

        ugly CHECK_SECOND_N_SO macro.

        * buildsym.h, dbxread.c, mipsread.c:  Make next_symbol_text a

        macro that invokes a function pointer in next_symbol_text_func.

        * mipsread.c:  Added comments various places to

        explain what is going on.

        * mipsread.c (parse_symbol):  Support the new (SGI-specific?)

        symbol types stStruct, stUnion, and stEnum.

        Also, some fixes in the code for dealing with tags.

        * mipsread.c:  Change handling of startup_file_start and _end

        - now just use the textlow and texhigh of a psymtab

        to check if we've found the startup-file.

        * mipsread.c:  Replace s_idx by global cur_sdx in many places.

        This is so mips_next_symbol_text can get at it.

Thu Dec 26 19:52:01 1991  Fred Fish  (fnf at cygnus.com)

        * dbxread.c, symmisc.c:  Move add_psymbol_to_plist() from

        dbxread.c to symmisc and change name to add_psymbol_to_list.

        Ditto for add_psymbol_addr_to_plist().  Also expand their

        body to not use ADD_PSYMBOL_VT_TO_LIST.

        * dwarfread.c:  Remove add_psymbol_to_list() and convert usages

        to the ADD_PSYMBOL_TO_LIST macro.

        * ieee-float.c:  Change "#ifdef DEBUG" to "#ifdef IEEE_DEBUG"

        to avoid collision with the DEBUG for ADD_PSYMBOL_VT_TO_LIST.

        * partial-stab.h, symfile.h:  Move definitions of the macros

        ADD_PSYMBOL_TO_LIST and ADD_PSYMBOL_ADDR_TO_LIST from

        partial-stab.h to symfile.h.  They aren't stab specific.

        Change ADD_PSYMBOL_VT_TO_LIST to use memcpy rather than strncpy.

Tue Dec 24 11:38:08 1991  John Gilmore  (gnu at cygnus.com)

        * Makefile.in:  Roll VERSION to 4.3.2.

Mon Dec 23 13:54:35 1991  Per Bothner  (bothner at cygnus.com)

        * m68k-opcode.h, mips-opcode.h, sparc-opcode.h:  Deleted.

        * m68k-pinsn.c, mips-pinsn.c, sparc-pinsn.c:

        Include  instead of .

        * symtab.h, symtab.c, coffread.c, dwarfread.c, symmisc.c,

        dbxread.c:  The TYPE_CPLUS_SPECIFIC structure is now only

        allocated when it is needed.  Until it is needed, it points

        to a shared statically allocated structure.

        * buildsym.h, buildsym.c, dbxread.c: Remove the kludgy code

        in read_ofile_symtab to recognize two initial N_SO stabs,

        and let process_on_symbol handle it.  This is cleaner, more

        efficient, and lets mipsread.c share the same code.

        * symfile.h, partial-stab.h:  Move ADD_PSYMBOL_VT_TO_LIST

        and related macros to here ...

        * dbxread.c: ... from here.

        * symmisc.c:  Move the "overflow" handling from

        ADD_PSYMBOL_VT_TO_LIST macro into new function extend_psymbol_list.

        * dwarfread.c:  Re-write add_psymbol_to_list to use

        ADD_PSYMBOL_VT_TO_LIST macro.

        * mipsread.c: Extend mipsread.c to handle stabs-style symbols

        encapsulated in ecoff symbols.  This enable full g++ debugging.

        * partial-stab.h:  Move the code for pre-scanning symbols

        and building psymtabs to an include file, out from dbxread.c.

        This way, the same code can also be used by mipsread.c.

        * dbxread.c, buildsym.h:  Various changes to allow some functions

        to be used by mipsread.c (also some arguable stylistic changes).

        * tm-mips.h:  Define BLOCK_ADDRESS_ABSOLUTE, at least for now,

        since mips-tfile puts relocatable addresses into LBRAC/RBRAC

        stabs.

        * mipsread.c:  Replace code to handle ambiguous tag blocks.

        Instead of allocating a TYPE_CODE_UNDEF, guess (by looking

        at types and offsets) if a tag is a struct, union, or enum.

        Still patch it later if we find out for sure.

        * mipsread.c:  In various ways, replace Forin's

        ideo-syncratic code by code that fits better with the

        rest of gdb, for both stabs-based and ecoff-based symtabs.

        E.g.  use end_psymtab; don't do extra passes over FDR table to

        pre-partition global data; don't use external symbols to

        create static/global symbols (just put them in the

        misc_vector); use ADD_PSYMBOL_TO_LIST macro; don't

        sort psymtabs or symtabs; use obstacks more.

        * symtab.c, mipsread.c, dbxread.c, buildsym.c:

        ANSIfy: Replace bcopy by memcpy, bzero by memset.

Sun Dec 22 19:31:04 1991  Fred Fish  (fnf at cygnus.com)

        * solib.c (locate_base):  Fix uninitialized variable that was

        causing return of random value to callee.

        * config/mh-amix, config/mh-i386v4:  Change to find alloca by

        compiling and linking alloca.c, even when it is not strictly

        required.  Also arrange to link with -ltermlib rather than

        -ltermcap.

        * Makefile.in:  Move TERMCAP definition to prior to inclusion

        of host makefile fragments so it can be overridden.

Fri Dec 20 16:33:39 1991  John Gilmore  (gnu at cygnus.com)

        * xcoffread.c (read_symbol_lineno):  Logic error in incrementing

        symbol table entry number.  (From Metin Ozisik.)

Fri Dec 20 11:36:38 1991  Fred Fish  (fnf at cygnus.com)

        * config/mh-i386v4:  Change XM_CLIBS to "-lc /usr/ucblib/libucb.a"

        so compiles with native compilers (without builtin alloca) can

        pick up the version from the bsd emulation library.  However, we

        search the standard C library first so we don't pick up lots of

        other broken stuff from libucb.a, that we *don't* want.

        * configure.in, tm-amix.h, tm-i386v4.h, xm-amix.h, xm-i386v4.h:

        Change svr4 references to sysv4.

        * source.c:  Move declaration of external function index to

        front of file so it is in scope for all references.

        * utils.c (error, fatal):  Make definitions consistent with

        defs.h declarations (declared as "volatile void").

Fri Dec 20 10:55:36 1991  John Gilmore  (gnu at cygnus.com)

        * rs6k-opcode.h:  Bugfix sfe and stbrx.  By Al Kossow.

Wed Dec 18 17:09:06 1991  Stu Grossman  (grossman at cygnus.com)

        * command.h, defs.h, eval.h, expression.h, remote-sa.sparc.c,

        sparc-tdep.c, symtab.h, target.h, value.h, vx-share/ptrace.h,

        vx-share/xdr_ptrace.h, vx-share/xdr_rdb.h:  ANSIfy enums.

Mon Dec 16 12:31:46 1991  Fred Fish  (fnf at cygnus.com)

        * config/mt-amix, config/mt-i386v4:  Add solib.o to TDEPFILES

        for these SVR4 systems.

        * symfile.c (symbol_file_add):  When verbose is set, print

        the names of files from which symbols are being loaded, as

        when from_tty is true.

        * solib.c:  Completely reorganized (rewritten) to support

        SVR4 shared libraries in a manner very close to the original

        SunOS implementation.  This support is expected to change and

        become more general at some future time.  The SVR4 version

        does not yet work for attached processes, for example.

        * dwarfread.c:  Arrange in dwarf_build_psymtabs() for the

        relocation address to be valid whether or not symbols are

        being read from a shared library or an executable.  Use the

        relocation address recorded in the psymtab when reading

        full symbol tables (in read_ofile_symtab).  Ensure that the

        relocated address ranges are recorded in partial symtabs.

        * elfread.c:  Add new function elf_interpreter() to return the

        string from the ELF ".interp" section.  This is the interpreter

        that the kernel tries to run and feed the executable to.

        Expand arguments to record_misc_function to include a type arg.

        Modify elf_symtab_read() to supply the type arg, and to do symbol

        relocations for symbols read in from shared libraries.

        * procfs.c:  Add new functions proc_base_address() and

        proc_address_to_fd(), used by shared library support.

        * tm-svr4.h:  Add macros to support SVR4 shared libraries.

        Definitions for SOLIB_ADD, SOLIB_CREATE_INFERIOR_HOOK,

        CLEAR_SOLIB, and DISABLE_UNSETTABLE_BREAK.

Fri Dec 13 20:11:26 1991  John Gilmore  (gnu at cygnus.com)

        * infrun.c, remote-eb.c, remote-nindy.c, remote-vx.c:  Remove

        unused START_INFERIOR_HOOK.

        * remote-eb.c:  Change timeout to 24 seconds (*10 fits in byte)

        to account for slow loading from floppies.

        (eb_create_inferior):  New fn, from eb_start and

        nindy_create_inferior.

        (eb_close):  Only use log_file if nonzero.

        (eb_xfer_inferior_memory):  If not writing, then read!

        (eb_read_inferior_memory, eb_write_inferior_memory):  Return length.

        (eb_kill):  A new no-op.

        (eb_mourn_inferior):  Remove breakpoints, then generically weep.

Fri Dec 13 16:09:23 1991  Fred Fish  (fnf at cygnus.com)

        * breakpoint.c, findvar.c, infrun.c, putenv.c, stack.c:  Fix

        miscellaneous comparisons of integer with NULL that elicit

        compiler warnings about comparison of integer with pointer, when

        NULL is ((void *) 0) rather than just a bare 0.

Wed Dec 11 13:02:58 1991  John Gilmore  (gnu at cygnus.com)

        * breakpoint.c (breakpoint_re_set_one):  Disable each breakpoint

        while we reset it, in case of problems.  Print breakpoint number

        in error messages.

        * buildsym.c (read_struct_type):  Avoid sun3 compiler bug with

        foo[--n].

        * source.c (find_source_lines): If getting file mod time fails,

        don't warn.

        * target.c (target_xfer_memory):  If errno is set, return it,

        rather than EIO.

Tue Dec 10 04:07:22 1991  K. Richard Pixley  (rich at rtl.cygnus.com)

        * Makefile.in: infodir belongs in datadir.

Sun Dec  8 21:13:33 1991  Michael Tiemann  (tiemann at sphagnum.cygnus.com)

        * symtab.h (struct fn_field): Add new fields `is_private',

        `is_protected', `is_stub', making room by reducing the size of

        `voffset'.

        (struct fn_fieldlist): Delete the fields `private_fn_field_bits'

        and `protected_fn_field_bits'.

        (TYPE_FN_{PRIVATE,PROTECTED}_BITS): Deleted.

        (SET_TYPE_FN_{PRIVATE,PROTECTED}): Deleted.

        (TYPE_FN_{PRIVATE,PROTECTED}): Deleted.

        (TYPE_FN_FIELD_{STUB,PRIVATE,PROTECTED}): New macros.

        * valops.c, valprint.c, symtab.c: All callers updated.

        * buildsym.c (read_struct_type): Delete the `visibility' field

        from `struct next_fnfield', and rework code so that visibility

        info is stored into the fn_field directly.  Also, hacked to set

        TYPE_FN_FIELD_STUB for both static and normal member functions.

Sat Dec  7 18:13:11 1991  Fred Fish  (fnf at cygnus.com)

        * i386-tdep.c:  Fix a problem on i386 systems where buffered code

        stream access was failing to take into account the minimum size

        granularity of the code section.  For now, the buffering is simply

        disabled.  There is a similar problem in the i386 disassember code

        that has not yet been fixed (FIXME).

        * gmalloc.c:  Use macros to hide some of the ugly casting required

        in the previously applied fix for pointers with high bits set.

Sat Dec  7 16:49:35 1991  John Gilmore  (gnu at cygnus.com)

        * Makefile.in:  Roll VERSION to 4.3.1.

Sat Dec  7 04:12:35 1991  John Gilmore  (gnu at cygnus.com)

        GDB-4.3 release!

        * Makefile.in:  Roll VERSION to 4.3

        * README, TODO, WHATS.NEW, depend:  Update.

        * inflow.c (terminal_inferior):  Avoid error msg if attached.

        * gmalloc.c:  Fix bug that causes malloc & free to

        fail on systems where pointers have the high bit set (0x800efcf0

        for example).  The problem is that the difference between two

        pointers is a signed integer, so the computation

                (char *) 0x800efcf0 - (char *) 0

        yields a negative value.  The sign of the result of the modulus

        operator is machine dependent for negative operands, thus it is

        possible for it to end up negative.  From Fred Fish.

Sat Dec  7 00:00:15 1991  K. Richard Pixley  (rich at rtl.cygnus.com)

        * Makefile.in: install using INSTALL_PROGRAM and INSTALL_DATA.

          added clean-info.  added some standards.text support and made it

          look like our other Makefiles.

        * configure.in: mark this directory target dependent.  configure

          now runs entirely in objdir so make existence tests and

          references against ${srcdir}.

Fri Dec  6 08:30:36 1991  Fred Fish  (fnf at cygnus.com)

        * dwarfread.c (enum_type, struct_type):  Fixes for opaque and

        anonymous enumerations, structures, and unions.  Now passes all

        the current gdb test suite tests.

Thu Dec  5 22:46:13 1991  K. Richard Pixley  (rich at rtl.cygnus.com)

        * Makefile.in: idestdir and ddestdir go away.  Added copyrights

          and shift gpl to v2.  Added ChangeLog if it didn't exist. docdir

          and mandir now keyed off datadir by default.

Thu Dec  5 21:53:21 1991  John Gilmore  (gnu at cygnus.com)

        * symtab.c (decode_line_1):  If SKIP_PROLOGUE leaves us in

        mid-line, be more careful about possibly advancing to the next line.

Thu Dec  5 18:59:51 1991  Michael Tiemann  (tiemann at cygnus.com)

        * cplus-dem.c (cplus_demangle): Call `string_need' when

        null-terminating a partially-computed string.

Thu Dec  5 18:19:43 1991  Fred Fish  (fnf at cygnus.com)

        * dwarfread.c (enum_type):  Build a correct TYPE_NAME, add a

        symbol to the symbol table for each member of the enum.

        * dwarfread.c (struct_type):  Build a correct TYPE_NAME.

        * dwarfread.c (add_enum_psymbol):  New function to extract enum

        member names and add them to the partial symbol table while

        building partial symbol tables.

Thu Dec  5 17:31:05 1991  John Gilmore  (gnu at cygnus.com)

        * symtab.c (check_stub_method):  Must allocate two extra argument

        slots (one for `this', one for arglist terminator).

Thu Dec  5 10:51:05 1991  Fred Fish  (fnf at cygnus.com)

        * inflow.c (child_terminal_info): Supply missing '"' character.

        * buildsym.c (define_symbol):  Supply missing parenthesis.

Thu Dec  5 03:34:21 1991  John Gilmore  (gnu at cygnus.com)

        * coredep.c (fetch_core_registers):  Fencepost error.  Fixed by

        Jay Lepreau .

        * inflow.c:  Remember whether GDB has a terminal.  Avoid switching

        terminals back and forth if we don't have one.

        * c-exp.y (parse_number):  Zero is not an unsigned int constant!

        * dbxread.c (read_dbx_symtab):  Enum type numbers can be in (1,2) form.

        Improve type parsing.

        * buildsym.c (define_symbol, read_range_type): Add

        long_kludge_name that passes the names of range types being

        defined, down to where we must choose between 'int' and 'long'

        variants.  This fails on Sun C anyway since the compiler itself is

        confused between int and long.

        (read_array_type, cleanup_undefined_types):  Correct the size of

        array type whose element-type size isn't immediately known.

        Early preparation to blow away many builtin types, building them

        on the fly as needed.  Don't compare types to builtin types with

        ==; examine the relevant fields instead.

        * coffread.c (process_coff_symbol: C_ARG, C_REGPARM):  Avoid ==.

        * buildsym.c (define_symbol, case 'p'):  Avoid ==.

        * valops.c (value_arg_coerce):  Avoid ==.  Don't assume host and

        target types are the same.

        * valprint.c (val_print):  I finally understand arrays, remove FIXME.

        * symmisc.c (printpsyms_command):  Reduce redundancy, and put all

        addresses in GDB itself into parens for easy cleanup and diffing.

Wed Dec  4 21:05:30 1991  Fred Fish  (fnf at cygnus.com)

        * dwarfread (enum_type):  Arrange for the order of enumeration

        members to match the source code order; not the order in the

        Dwarf information, which is explicitly reverse order.

Wed Dec  4 18:24:39 1991  John Gilmore  (gnu at cygnus.com)

        * main.c (input_from_terminal_p):  Check whether GDB has a

        terminal at all.

        (initialize_main):  Revise doc for `set editing'.

Wed Dec  4 15:36:39 1991  Fred Fish  (fnf at cygnus.com)

        * dwarfread.c (struct_type):  Handle structures and unions which

        contain DIE's other than just member dies.

Wed Dec  4 01:59:05 1991  John Gilmore  (gnu at cygnus.com)

        * symfile.c (reread_symbols):  Avoid kludging mtime_set, now that

        BFD is fixed.

Tue Dec  3 17:24:57 1991  John Gilmore  (gnu at cygnus.com)

        * Makefile.in:  VERSION 4.2.96.

        * main.c (initialize_main):  Revise command descriptions.

        * command.c (show_user):  `info user' -> `show user'.

        * symtab.c (_initialize_symtab):  Typo in `info types' desc.

        * coffread.c (coff_symfile_read):  Avoid select_source_symtab,

        since it is not needed and can cause errors when examining ".o"s.

        (read_coff_symtab, decode_base_type):  Use complain, not printf.

        Print symbol name, not its number.

        Remove "#if defined(clipper) #define BELIEVE_PCC_PROMOTION", which

        someday should go in a clipper target config file.

        * symfile.c (compact_misc_function_vector):  Handle empty vector.

        (complain, clear_complaints, syms_from_objfile):  Fix complaint

        formatting.

        * xcoffexec.c:  Change syms_from_objfile caller.

        * sparc-xdep.c:  Force tm-file as tm-sparc.h, to make it compile

        when configured for cross debugging.  FIXME, this needs a more

        general solution.

Mon Dec  2 11:04:05 1991  Per Bothner  (bothner at cygnus.com)

        * mips-tdep.c (init_extra_frame_info):  Float register

        'i' has gdb-internal number 'FP0+i', not '32+i'.

        * mipsread.c (new_symbol):  Translate g++ special

        symbol "$t" to "this".

Sat Nov 30 21:29:55 1991  Steve Chamberlain  (sac at cygnus.com)

        Changes due to include file renaming:

        * xcoffread.c:  internalcoff.h  ->coff/internal.c,

                        coff-rs6000.h   ->coff/rs6000.h

        * mipsread.c:   coff-mips.h     ->coff/mips.h

        * elfread.c:    elf-common.h    ->elf/common.h

                        elf-external.h  ->elf/external.h,

                        elf-internal.h  ->elf/internal.h

        * dwarfread.c   dwarf.h         ->elf/dwarf.h

        * dbxread.c:    aout64.h        ->aout/aout64.h

                        stab.gnu.h      ->aout/stab_gnu.h

        * coffread.c:   internalcoff.h  ->coff/internal.h

        * buildsym.c:   stab.gnu.h      ->aout/stab_gnu.h

        * depend        Updated to take the above into account.

Fri Nov 29 16:59:25 1991  Fred Fish  (fnf at cygnus.com)

        * configure.in:  Add SVR4 i386 configurations.

        * config/mh-i386v4, config/mt-i386v4, tm-i386v4.h, xm-i386v4.h:

        New files for i386/SVR4.

        * tm-i386v.h:  Allow START_INFERIOR_TRAPS_EXPECTED and

        DECR_PC_AFTER_BREAK to be predefined by files including

        tm-i386v.h.

        * i386-tdep.c:  Add supply_gregset(), fill_gregset(),

        supply_fpregset(), and fill_fpregset() functions, which are

        target dependent support functions for the SVR4 /proc register

        interface.

        * dwarfread.c (enum_type, struct_type):  Expand recognized

        compiler generated tags to include symbols beginning with '.' as

        well as '~'.

        * symtab.c (sources_info):  Change simple printf of error message

        to call to error().

Fri Nov 29 16:04:21 1991  Roland H. Pesch  (pesch at cygnus.com)

        * doc/gdb.texinfo: remove leading comments that survived M4 but

        described its role in the doc; add one more font to colophon;

        strengthen disclaimer about unsupported configs.

Wed Nov 27 01:23:41 1991  John Gilmore  (gnu at cygnus.com)

        Fix bugs in C++ debugging.

        * symtab.h:  target_type is not used in record types.

        Eliminate TYPE_MAIN_VARIANT and TYPE_NEXT_VARIANT.  Eliminate

        lookup_method_type.  Add TYPE_TYPE_SPECIFIC macro.

        * symtab.c (lookup_member_type):  Don't chain them up, just

        allocate one in symbol_obstack when we need one.

        (allocate_stub_method):  Build stub in symbol_obstack.

        (check_stub_method):  Move here from values.c.  Don't deallocate

        stub; overwrite it.

        (lookup_method_type):  Gone now.

        * buildsym.c: Handle g++ v1 stabs a little bit better.

        Change some C++ parsing error()s to complain()ts.

        * buildsym.c, findvar.c, printcmd.c, symtab.c:  Make unions and

        structs have the same representation and work the same as far as

        C++ is concerned.

        * buildsym.c, symtab.c, values.c: Remove all references to

        TYPE_MAIN_VARIANT and TYPE_NEXT_VARIANT.

        * valops.c:  Improve comments and indentation.  Only call

        check_stub_method when the stub flag is on.

        * valprint.c:  Fix or mark minor bugs and unportabilities.

        * coffread.c (anonymous unions):  Allocate a cplus structure.

        * mipsread.c:  Eliminate "template" types.  Build new, real

        types whenever we need them.  Allocate cplus structures as needed.

        Bulletproof the type parsing a bit more.  Mark storage leaks.

        (parse_type):  Copy TYPE_TYPE_SPECIFIC when copying a real type

        on top of a partial type.

Fri Nov 22 16:39:57 1991  John Gilmore  (gnu at cygnus.com)

        * inflow.c (terminal_inferior):  Check the results of ioctl's, and

        print a message if any of them fail.

        (terminal_ours_1):  Store result of ioctl's for debugging, but

        don't print (the terminal isn't ours...).

        * tm-tahoe.h (FRAME_ARGS_ADDRESS):  No need to offset from frame

        pointer.

        * m2-exp.y (MAX, MIN):  Rename to MAX_FUNC, MIN_FUNC to avoid

        conflicts with system header files.

Fri Nov 22 08:27:40 1991  John Gilmore  (gnu at cygnus.com)

        * Roll VERSION to 4.2.95.

        * buildsym.c, coredep.c, mem-break.c, xcoffread.c:  Put 

        first, before defs.h.

        * config/mh-i386sco: Override compiler to gcc, print warning.

        * configure.in:  Handle i386-none-aout rather than i386-aout-none.

        * infptrace.c, language.h, utils.c:  Lint.

        * m2-exp.y:  #undef MAX and MIN in case system includes set them.

        * xm-tahoe.h:  Set HOST_BYTE_ORDER.  Include system versions of

        {BIG,LITTLE}_ENDIAN and the INT_MAX family first, to avoid

        redefinition warnings.

        * defs.h:  Reorder things so that the xm-file gets first crack

        at #define's, followed by defs.h and then the tm-file.

        * Makefile.in:  Remove spaces after 'ignore exit code' - flags.

        Late-model BSD 'make's don't cope with them.

Thu Nov 21 23:48:56 1991  John Gilmore  (gnu at cygnus.com)

        * Makefile.in:  Roll new files into various lists.

Thu Nov 21 18:26:11 1991  Fred Fish  (fnf at cygnus.com)

        * dwarfread.c (struct_type):  Must initialize the c++ specific

        portion of union types as well as struct types, since gdb attempts

        to reference the c++ specific info for both types.

Thu Nov 21 10:23:52 1991  John Gilmore  (gnu at cygnus.com)

        * Makefile.in: Roll VERSION to 4.2.90.

        * defs.h:  Incorporate param.h into defs.h.  All users changed.

        * param-no-tm.h:  Change users to define TM_FILE_OVERRIDE instead.

        * param.h, param-no-tm.h:  Removed.

        * Update copyrights in all changed files.

        * dbxread.c, dwarfread.c, inflow.c, infrun.c, m2-exp.y, putenv.c,

        solib.c, symtab.h, tm-umax.h, valprint.c:  Lint.

        * tm-convex.h, tm-hp300hpux.h, tm-merlin.h, tm-sparc.h,

        xm-merlin.h:  Avoid host include files in target descriptions.

        * getpagesize.h:  Removed, libiberty copes now.

        * Makefile.in:  Remove getpagesize.h, param.h, param-no-tm.h.

        * exec.c (exec_files_info):  If `verbose' is set, show file offset

        as well.

        * main.c:  Use getcwd rather than getwd.

        * standalone.c:  Fake getcwd rather than getwd.

        * xm-*.h:  Remove fake values of MAXPATHLEN.

        * xcoffexec.c:  Add /* */ to #if 0'd thing to help ANSI.

Wed Nov 20 18:35:56 1991  John Gilmore  (gnu at cygnus.com)

        * Remove gdb/hp-include.  Support for HP a.out oddities should be

        in BFD, not in GDB.  Move gdb/hp-include/a.out.h to include/a.out.hp.h.

        * infptrace.c, tm-sun386.h:  Cashier , remove refs.

        * configure.in, xconfig, tconfig, Makefile.in, doc/gdbint.texinfo:

        Makefile fragments for various hosts and targets now come from

        gdb/config/mh-* and gdb/config/mt-*.  This is for consistency with

        other config setups.

        * rs6000-pinsn.c, rs6k-opcode.h:  Clean up.

        * rs6k-opcode.def:  Delete.

Wed Nov 20 05:04:40 1991  Fred Fish  (fnf at cygnus.com)

        * dwarfread.c:  Recognize obsolete form of AT_element_list

        attribute still used by at least one AT&T compiler, and possibly

        more.

Tue Nov 19 07:53:55 1991  Fred Fish  (fnf at cygnus.com)

        * dwarfread.c (enum_type, struct_type):  Ignore names invented by

        helpful compilers for anonymous structs, unions, and enums.

        * c-exp.y, m2-exp.y:  Add defines for yymaxdepth, yy_yys, and

        yy_yyv, so multiple parsers produced by SVR4 versions of yacc

        can coexist in the same executable without collision.

        * symtab.h:  Add declaration for lookup_template_type() to kill

        compiler warnings about conversions from int to pointer.

Mon Nov 18 17:45:18 1991  Fred Fish  (fnf at cygnus.com)

        * procfs.c:  Move inclusion of defs.h to before param.h, as in

        all the other source files that include both.  This is required

        to supply some typedefs that are used in files included by param.h.

        * m68k-tdep.c (m68k_skip_prologue):  Add generic m68k support for

        skipping function prologues, ala the other cpu families (i386,

        mips, m88k, etc).  Add the ability to skip movm and fmovm

        instructions in the prologues.  Still needs support for profile

        (-p compiled) prologue sequences (FIXME).

        * tm-68k.h:  Change SKIP_PROLOGUE macro to use the new generic

        m68k prologue skipping function by default.

        * tm-altos.h, tm-isi.h:  Continue to use the old definition of

        SKIP_PROLOGUE.

Mon Nov 18 15:12:45 1991  John Gilmore  (gnu at cygnus.com)

        * Makefile.in:  Remove tdesc stuff, and extra blanks before colons.

        * blockframe.c:  Remove tdesc-related code.  Default

        FRAME_CHAIN_COMBINE.

        * infrun.c:  Remove tdesc-related code.

        * m88k-tdep.c (frame_chain_combine, init_frame_pc):  Remove copies

        of defaultable things.

        * tm-m88k.h:  New file, common to all Moto 88k target configs.

        Derived from tm-delta88.h.

        * tm-delta88.h:  Use it.

        * xm-m88k.h:  Common file for 88K hosts.  Remove obsolete stuff.

        * xm-delta88.h:  Use it.

        * tm-*.h:  Remove FRAME_CHAIN_COMBINE macros, since all are

        default.

        * coffread.c:  Remove tdesc stuff.

        * tconfig/delta88, tconfig/m88k:  Remove tdesc stuff.

        * xconfig/m88k:  Rename tm-88k.h to tm-m88k.h.

Mon Nov 18 13:51:37 1991  Per Bothner  (bothner at cygnus.com)

        * source.c (open_source_file):  If openp fails, try again

        using just the base (non-directory) part of the filename.

        This solves various annoying problems, such as when the

        source was compiled with an absolute pathname - and the

        source files have moved.  Or if the source was compiled

        using a relative pathname, it can be more convenient

        to just specific the source directory to the dir command.

Mon Nov 18 00:04:41 1991  Fred Fish  (fnf at cygnus.com)

        * cplus-dem.c (munge_function_name):  Add missing third arg to

        instance of call to do_type().

        * dwarfread.c:  Changes to match new dwarf.h.  Remove

        AT_deriv_list, AT_loclist, AT_incomplete, AT_const_data,

        and AT_is_external.

Sun Nov 17 16:20:53 1991  Michael Tiemann  (tiemann at rtl.cygnus.com)

        * symtab.h (struct type): Moved C++-specific fields into new type

        `struct cplus_struct_type'.  Now takes 10% less memory.  Many

        macros changed.

        * symtab.c (init_type): Don't set fields belonging to

        TYPE_CPLUS_SPECIFIC unless TYPE is TYPE_CODE_STRUCT.

        * buildsym.c (read_type): Allocate TYPE_CPLUS_SPECIFIC for

        TYPE_CODE_STRUCT.

        (read_struct_type): Ditto.  Also, add comments about how we can

        deduce TYPE_VPTR_FIELDNO from inheritance info and fieldname info.

        * coffread.c (decode_base_type): Allocate TYPE_CPLUS_SPECIFIC for

        TYPE_CODE_STRUCT.

        (read_struct_type): Ditto.

        * dwarfread.c (struct_type): Ditto.

        * symtab.c (read_range_type): Don't set TYPE_MAIN_VARIANT.

        (lookup_pointer_type): Don't use or set TYPE_MAIN_VARIANT.

        (lookup_reference_type): Ditto.

        * cplus-dem.c: Many changes made to handle decoding of

        ANSI-mangled names.

        * symtab.c (gdb_mangle_name): Mangle/demangle ANSI-mangled names

        as well.

Fri Nov 15 17:57:59 1991  Stu Grossman  (grossman at cygnus.com)

        * mipsread.c (parse_partial_symbols):  patch to keep DEC C

        compiler from making gdb bomb out.  Thanks to Ed Santiago!

Thu Nov 14 19:27:30 1991  Fred Fish  (fnf at cygnus.com)

        * symfile.c:  Add function compact_misc_function_vector() to

        remove duplicate misc function vector entries.  See comments

        in source for why this is necessary/desirable.

        * dwarfread.c:  Add misc function type parameter to internal

        record_misc_function().  Remove calls to init_misc_bunches()

        and condense_misc_bunches(), these are now done in elfread.c.

        * elfread.c:  Add support for reading bfd canonical symbol tables

        and generating misc function vector entries for global and

        absolute symbols.  Do calls to init_misc_bunches() and

        condense_misc_bunches() where they will enclose all calls to

        record_misc_function(), including those in dwarfread.c.

Thu Nov 14 17:02:11 1991  Roland H. Pesch  (pesch at cygnus.com)

        * doc/Makefile.in: new targets gdb.me, gdb.ms, gdb.mm

        (roffable documentation).

        * doc/gdb.texinfo: embedded hints (as comments) for better

        texi2roff conversion.

Thu Nov 14 13:18:25 1991  John Gilmore  (gnu at cygnus.com)

        * m88k-tdep.c (examine_prologue):  Deal with OR instructions

        that shuffle parameters into other regs.

        * symtab.c (decode_line_1):  Fix bug introduced in Per's change

        of Nov 12th.

Wed Nov 13 19:51:11 1991  Steve Chamberlain  (sac at cygnus.com)

        * Makefile.in, xconfig/delta88 made it install a sysV manual page;

        gdb.z into the right place.

Wed Nov 13 16:45:13 1991  John Gilmore  (gnu at cygnus.com)

        Motorola 88000 port without tears, I mean without tdescs.

        * m88k-tdep.c:  Blow away all tdesc stuff.

        Provide functions for all the frame-related macros in

        tm-delta88.h.  Adopt i960-style EXTRA_FRAME_INFO.

        (examine_prologue, frame_find_saved_regs, skip_prologue):  borrow

        from i960-tdep.c and adapt to the function prologues on the 88k.

        (read_next_frame_reg):  Borrow from mips-tdep.c.

        FIXME:  frame_locals_address should go away.

        * tm-delta88.h:  Dump all the tdesc stuff.

        Macros for all frame-related stuff call fns of same name.

        Remove duplicated definitions.  FP_REGNUM becomes same as

        SP_REGNUM.

        * xm-88k.h:  Eliminate lots of library dependencies, now handled

        in libiberty.  Eliminate KDB nonsupport.

        * doc/gdbint.texinfo:  Add rudiments on frames.  FIXME, add more.

        * stack.c (frame_info):  Mark frameless functions.

        Print locals address (FIXME, remove if same).

        * blockframe.c:  Comment changes, FIXME after.

        * coffread.c:  Even without TDESC, need to zap "@" symbols.

        Don't register for wierd format names; change the names in BFD.

        * alloca.c, language.c, tdesc.c:  Lint.

        * tdesc.c, tdesc-lib: FIXME:  remove these.

Tue Nov 12 19:30:22 1991  John Gilmore  (gnu at cygnus.com)

        * Makefile.in:  Add tdesc library support.  Fixups to lint,

        copying.c rules.

Tue Nov 12 13:43:26 1991  Per Bothner  (bothner at cygnus.com)

        * symtab.c (decode_line_1):  Remove spurious call to operator_chars.

        Allow setting breakpoints on C++ destructors.

        * valops.c (destructor_name_p):  Don't check TYPE_HAS_DESTRUCTOR,

        since it lies.  Rely on callers to catch missing destructors.

        * symtab.c (decode_line_1):  For example (see above), here.

        * buildsym.c, symtab.h:  Remove TYPE_FLAGS_HAS{CON,DE}STRUCTOR

        flags since they are no longer used.

        Fixes to support C++ methods with functional parameters.

        * c-exp.y (func_mod rule):  Allow (and ignore) list of parameter

        types in a function type.

        * eval.c (parse_and_eval_type), value.h:  New function,

        parse_and_eval_type, is based on old code from check_stub_method.

        But don't actually evaluate the cast, since that calls

        value_cast(), whcih may fail.  Just extract the type

        from the parsed expression.

        * values.c (check_stub_method):  While looping through the

        arguments, adjust depth *after* parameter has been handled.

        Replace call and setup of parse_and_eval with new function

        parse_and_eval_type.

Tue Nov 12 09:40:07 1991  Fred Fish  (fnf at cygnus.com)

        * utils.c, rem-multi.shar:  Remove fixed arg count version of

        concat().

        * altos-xdep.c, arm-xdep.c, coffread.c, command.c, convex-xdep.c,

        core.c, dwarfread.c, gould-xdep.c, infcmd.c, language.c,

        m88k-xdep.c, main.c, printcmd.c, pyr-xdep.c, source.c,

        sun386-xdep.c, symm-xdep.c, umax-xdep.c, values.c, xcoffread.c:

        Change all instances of use of fixed args concat() to variable

        args concat() now located in libiberty.

Tue Nov 12 07:23:46 1991  John Gilmore  (gnu at cygnus.com)

        * Makefile.in:  Add xcoffread.c, xcoffexec.c.

        * xcoffread.c:  New file for handling AIX mangled-coff files.

        * xconfig/rs6000, tconfig/rs6000:  New files.

        * buildsym.c:  Add hooks for xcoffread.c.

        * rs6000-pinsn.c, rs6000-tdep.c, rs6000-xdep.c, tm-rs6000.h,

        xm-rs6000.h, rs6k-opcode.def, rs6k-opcode.h:  New files.

        * xcoffexec.c:  New file for handling AIX shared libraries.

Mon Nov 11 19:14:31 1991  Fred Fish  (fnf at cygnus.com)

        * core.c:  Minor rewording of message to user containing name of

        (and possibly arguments to) the program that generated a core

        file.

        * elfread.c:  Remove the register_addr() stub now that it is no

        longer needed.

        * procfs.c:  Move misplaced #endif for ATTACH_DETACH.  Add new

        fetch_core_registers() function for core file support.

Sat Nov  9 13:37:57 1991  Fred Fish  (fnf at cygnus.com)

        * dwarfread.c (dwarf_psymtab_to_symtab):  Remove leftover call

        to do_cleanups() which resulted from a previous change.

        * elfread.c:  Re-enable compilation of register_addr() stub

        whenever it is not supplied by coredep.c

Sat Nov  9 00:40:32 1991  John Gilmore  (gnu at cygnus.com)

        Add tracking of object files (that contain symbols) to gdb.

        This includes a "struct objfile" that owns symtabs and psymtabs

        that were read in from that binary file.

        * symfile.h:  Add struct objfile.  Add pointer to the objfile

        into the struct sym_fns.

        Replace global `symfile' and `symfile_mtime' with

        `symfile_objfile'.  Add global object_files chain.

        * symfile.c:  Move param.h above symtab.h.

        (sort_misc_function_vector):  Add.

        (syms_from_objfile):  Was syms_from_bfd.

        (symfile_open):  Now returns objfile.

        (allocate_objfile):  New.

        (free_objfile):  New, replacing free_all_.*symtabs.

        (symfile_init):  Takes objfile arg, puts it in sym_fns result.

        (reread_symbols):  Searches whole chain of objfiles.

        (allocate_symtab):  Takes objfile as new parameter, chains them.

        Handle INIT_EXTRA_SYMTAB_INFO.

        (free_all_psymtabs, free_all_symtabs):  Move here from symmisc.c.

        * dbxread.c:  Make more errors into complaints.

        (push_subfile, pop_subfile):  Move to buildsym.c.

        (dbx_symfile_read, dbx_symfile_init, fill_symbuf, read_dbx_symtab,

        start_psymtab, psymtab_to_symtab_1, read_ofile_symtab,

        dbx_psymtab_to_symtab, ):  Use bfd ops, don't use file descriptor.

        Pass objfile.  Change callers.

        (fill_symbuf, SWAP_SYMBOL):  Take bfd as arg.

        (read_dbx_symtab):  Just wipe out new symbols, not all, on error.

        (end_psymtab):  Blow away psymtab if empty.

        (process_symbol_pair):  Swallow into read_ofile_symtab.

        (process_one_symbol):  Use push_context and pop_context.

        (virtual_context):  Delete #if 0'd obsolete stuff.

        * buildsym.c (end_symtab):  Pass objfile.

        (dbx_lookup_type):  Handle null typevector.

        (dbx_alloc_type):  Check file number, not sym number, for -1.

        (find_symbol_in_list):  Add for xcoffread.

        (start_symtab):  Default typevector is empty.  Keep reusing same

        context_stack.

        (end_symtab):  Take objfile argument and pass it to

        allocate_symtab.  Don't make a symtab if no blocks or symbols.

        Handle empty typevector.

        (push_context):  New function for context stack nesting.

        (read_type):  Mark FIXME where we need to reintroduce type smashing.

        * buildsym.h (pop_context):  Macro, paired with push_context.

        (subfile_stack):  Move here from dbxread.c.

        * coffread.c (end_symtab, read_coff_symtab):  Take and use objfile arg.

        (read_coff_symtab):  Cleanup by freeing objfile, not all symtabs.

        * mipsread.c (read_mips_symtab, parse_partial_symbols, parse_fdr,