1991-10-24 11:28:54 +00:00
|
|
|
|
/* Read ELF (Executable and Linking Format) object files for GDB.
|
1992-03-27 23:56:15 +00:00
|
|
|
|
Copyright 1991, 1992 Free Software Foundation, Inc.
|
1991-10-24 11:28:54 +00:00
|
|
|
|
Written by Fred Fish at Cygnus Support.
|
|
|
|
|
|
|
|
|
|
This file is part of GDB.
|
|
|
|
|
|
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
|
|
|
it under the terms of the GNU General Public License as published by
|
|
|
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
|
|
|
(at your option) any later version.
|
|
|
|
|
|
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
|
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
|
GNU General Public License for more details.
|
|
|
|
|
|
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
|
|
|
along with this program; if not, write to the Free Software
|
|
|
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|
|
|
|
|
|
|
|
|
#include "defs.h"
|
|
|
|
|
#include "bfd.h"
|
1993-09-14 18:10:42 +00:00
|
|
|
|
#include <time.h> /* For time_t in libbfd.h. */
|
1993-09-15 16:45:44 +00:00
|
|
|
|
#include <sys/types.h> /* For time_t, if not in time.h. */
|
1992-06-21 02:20:30 +00:00
|
|
|
|
#include "libbfd.h" /* For bfd_elf_find_section */
|
1993-05-25 20:21:06 +00:00
|
|
|
|
#include "libelf.h"
|
1991-10-24 11:28:54 +00:00
|
|
|
|
#include "symtab.h"
|
1992-02-22 01:46:16 +00:00
|
|
|
|
#include "symfile.h"
|
1992-03-21 01:56:01 +00:00
|
|
|
|
#include "objfiles.h"
|
1992-03-29 23:26:47 +00:00
|
|
|
|
#include "buildsym.h"
|
1993-08-24 01:43:59 +00:00
|
|
|
|
#include "stabsread.h"
|
1992-07-04 13:59:03 +00:00
|
|
|
|
#include "gdb-stabs.h"
|
* complaints.c: New file, code moved from utils.c.
* complaints.c (complain): Made into a varargs function.
* complaints.h: New file, code moved from symfile.h.
* Makefile.in (SFILES_MAINDIR): Add complaints.c.
* Makefile.in (HFILES): Add complaints.h.
* Makefile.in (OBS): Add complaints.o.
* symfile.c (complaint_root, stop_whining, complaint_series,
complain, clear_complaints, add_show_from_set for stop_whining):
Moved to complaints.c.
* symfile.h (struct complaint, complaint_root decl, complain
prototype, clear_complaints prototype): Moved to complaints.h.
* buildsym.c, coffread.c, dbxread.c, dwarfread.c, elfread.c,
gdbtypes.c, mipsread.c, stbsread.c, symfile.c: Include
complaints.h. Remove casts from arguments to complain(),
which is now a varargs function, and remove unnecessary
placeholder zero args.
* defs.h (begin_line): Add prototype.
* defs.h (vprintf_filtered): Add prototype.
* dwarfread.c (varargs.h): Remove, no longer needed.
* dwarfread.c (dwarfwarn): Remove prototype and function.
* dwarfread.c (complaints): Define a bunch of complaints.
* dwarfread.c (SQUAWK): Remove macro defs, convert all
usages to standard complain() calls.
* utils.c (begin_line): New function that ensures that
whatever gets filter-printed next starts on its own line.
* utils.c (vprintf_filtered): New func, like vfprintf_filtered,
but to stdout (calls vfprintf_filtered internally).
1992-12-15 12:18:53 +00:00
|
|
|
|
#include "complaints.h"
|
1992-11-04 23:31:52 +00:00
|
|
|
|
#include <string.h>
|
* defs.h (STRCMP, STREQ, STREQN): New macros.
* defs.h (demangle_and_match): Remove prototype.
* dwarfread.c (STREQ, STREQN): Remove macros, replaced with STREQ
and STREQN defined in defs.h.
* dwarfread.c (set_cu_language): For completely unknown languages,
try to deduce the language from the filename. Retain behavior
that for known languages we don't know how to handle, we use
language_unknown.
* dwarfread.c (enum_type, symthesize_typedef): Initialize language
and demangled name fields in symbol.
* dwarfread.c, mipsread.c, partial-stab.h: For all usages of
ADD_PSYMBOL_TO_LIST, add language and objfile parameters.
* dwarfread.c (new_symbol): Attempt to demangle C++ symbol names
and cache the results in SYMBOL_DEMANGLED_NAME for the symbol.
* elfread.c (STREQ): Remove macro, use STREQ defined in defs.h.
Replace usages throughout.
* elfread.c (demangle.h): Include.
* elfread.c (record_minimal_symbol): Remove prototype and function.
* gdbtypes.h, symtab.h (B_SET, B_CLR, B_TST, B_TYPE, B_BYTES,
B_CLRALL): Moved from symtab.h to gdbtypes.h.
* infcmd.c (jump_command): Remove code to demangle name and add
it to a cleanup list. Now just use SYMBOL_DEMANGLED_NAME.
* minsyms.c (demangle.h): Include.
* minsyms.c (lookup_minimal_symbol): Indent comment to match code.
* minsyms.c (install_minimal_symbols): Attempt to demangle symbol
names as C++ names, and cache them in SYMBOL_DEMANGLED_NAME.
* mipsread.c (psymtab_language): Add static variable.
* stabsread.c (demangle.h): Include.
* stabsread.c (define_symbol): Attempt to demangle C++ symbol
names and cache them in the SYMBOL_DEMANGLED_NAME field.
* stack.c (return_command): Remove explicit demangling of name
and use of cleanups. Just use SYMBOL_DEMANGLED_NAME.
* symfile.c (demangle.h): Include.
* symfile.c (add_psymbol_to_list, add_psymbol_addr_to_list): Fix
to match macros in symfile.h and allow them to be compiled
if INLINE_ADD_PSYMBOL is not true.
* symfile.h (INLINE_ADD_PSYMBOL): Default to true if not set.
* symfile.h (ADD_PSYMBOL_*): Add language and objfile parameters.
Add code to demangle and cache C++ symbol names. Use macro form
if INLINE_ADD_PSYMBOL is true, otherwise use C function form.
* symmisc.c (add_psymbol_to_list, add_psymbol_addr_to_list):
Remove, also defined in symfile.c, which we already fixed.
* symtab.c (expensive_mangler): Remove prototype and function.
* symtab.c (find_methods): Remove physnames parameter and fix
prototype to match.
* symtab.c (completion_list_add_symbol): Name changed to
completion_list_add_name.
* symtab.c (COMPLETION_LIST_ADD_SYMBOL): New macro, adds both
the normal symbol name and the cached C++ demangled name.
* symtab.c (lookup_demangled_partial_symbol,
lookup_demangled_block_symbol): Remove prototypes and functions.
* symtab.c (lookup_symbol): Remove use of expensive_mangler,
use lookup_block_symbol instead of lookup_demangled_block_symbol.
Remove code to try demangling names and matching them.
* symtab.c (lookup_partial_symbol, lookup_block_symbol):
Fix to try matching the cached demangled name if no match is
found using the regular symbol name.
* symtab.c (find_methods): Remove unused physnames array.
* symtab.c (name_match, NAME_MATCH): Remove function and macro,
replaced with SYMBOL_MATCHES_REGEXP from symtab.h.
* symtab.c (completion_list_add_symbol): Rewrite to use cached
C++ demangled symbol names.
* symtab.h: Much reformatting of structures and such to add
whitespace to make them more readable, and make them more
consistent with other gdb structure definitions.
* symtab.h (general_symbol_info): New struct containing fields
common to all symbols.
* symtab.h (SYMBOL_LANGUAGE, SYMBOL_DEMANGLED_NAME,
SYMBOL_SOURCE_NAME, SYMBOL_LINKAGE_NAME, SYMBOL_MATCHES_NAME,
SYMBOL_MATCHES_REGEXP, MSYMBOL_INFO, MSYMBOL_TYPE): New macros.
* symtab. (struct minimal_symbol, struct partial_symbol, struct
symbol): Use general_symbol_info struct.
* utils.c (demangle_and_match): Remove, no longer used.
* valops.c (demangle.h): Include.
* xcoffexec.c (eq): Remove macro, replace usages with STREQ.
* blockframe.c, breakpoint.c, c-exp.y, c-valprint.c, dbxread.c,
infcmd.c, m2-exp.y, minsyms.c, objfiles.h, solib.c, stack.c,
symmisc.c, symtab.c, valops.c: Replace references to minimal
symbol fields with appropriate macros.
* breakpoint.c, buildsym.c, c-exp.y, c-typeprint.c, c-valprint.c,
coffread.c, command.c, convex-tdep.c, cp-valprint.c, dbxread.c,
demangle.c, elfread.c, energize.c, environ.c, exec.c,
gdbtypes.c, i960-tdep.c, infrun.c, infrun-hacked.c, language.c,
main.c, minsyms.c, mipsread.c, partial-stab.h, remote-es1800.c,
remote-nindy.c, remote-udi.c, rs6000-tdep.c, solib.c, source.c,
sparc-pinsn.c, stabsread.c, standalone.c, state.c, stuff.c,
symfile.c, symmisc.c, symtab.c, symtab.h, tm-sysv4.h,
tm-ultra3.h, values.c, xcoffexec.c, xcoffread.c: Replace strcmp
and strncmp usages with STREQ, STREQN, or STRCMP as appropriate.
* breakpoint.c, buildsym.c, c-typeprint.c, expprint.c, findvar.c,
mipsread.c, printcmd.c, source.c, stabsread.c, stack.c,
symmisc.c, tm-29k.h, valops.c, values.c: Replace SYMBOL_NAME
references with SYMBOL_SOURCE_NAME or SYMBOL_LINKAGE_NAME as
appropriate.
* buildsym.c (start_subfile, patch_subfile_names): Default the
source language to what can be deduced from the filename.
* buildsym.c (end_symtab): Update the source language in the
allocated symtab to match what we have been using.
* buildsym.h (struct subfile): Add a language field.
* c-typeprint.c (c_print_type): Remove code to do explicit
demangling.
* dbxread.c (psymtab_language): Add static variable.
* dbxread.c (start_psymtab): Initialize psymtab_language using
deduce_language_from_filename.
1992-12-23 06:34:57 +00:00
|
|
|
|
#include "demangle.h"
|
1991-10-24 11:28:54 +00:00
|
|
|
|
|
1992-07-04 13:59:03 +00:00
|
|
|
|
/* The struct elfinfo is available only during ELF symbol table and
|
|
|
|
|
psymtab reading. It is destroyed at the complation of psymtab-reading.
|
|
|
|
|
It's local to elf_symfile_read. */
|
|
|
|
|
|
1991-10-24 11:28:54 +00:00
|
|
|
|
struct elfinfo {
|
1992-10-15 13:40:40 +00:00
|
|
|
|
file_ptr dboffset; /* Offset to dwarf debug section */
|
1991-10-24 11:28:54 +00:00
|
|
|
|
unsigned int dbsize; /* Size of dwarf debug section */
|
1992-10-15 13:40:40 +00:00
|
|
|
|
file_ptr lnoffset; /* Offset to dwarf line number section */
|
1991-10-24 11:28:54 +00:00
|
|
|
|
unsigned int lnsize; /* Size of dwarf line number section */
|
1992-06-13 07:24:30 +00:00
|
|
|
|
asection *stabsect; /* Section pointer for .stab section */
|
|
|
|
|
asection *stabindexsect; /* Section pointer for .stab.index section */
|
1993-12-06 17:31:05 +00:00
|
|
|
|
asection *mdebugsect; /* Section pointer for .mdebug section */
|
1991-10-24 11:28:54 +00:00
|
|
|
|
};
|
|
|
|
|
|
1992-07-04 13:59:03 +00:00
|
|
|
|
/* Various things we might complain about... */
|
|
|
|
|
|
|
|
|
|
struct complaint section_info_complaint =
|
|
|
|
|
{"elf/stab section information %s without a preceding file symbol", 0, 0};
|
|
|
|
|
|
|
|
|
|
struct complaint section_info_dup_complaint =
|
|
|
|
|
{"duplicated elf/stab section information for %s", 0, 0};
|
|
|
|
|
|
|
|
|
|
struct complaint stab_info_mismatch_complaint =
|
|
|
|
|
{"elf/stab section information missing for %s", 0, 0};
|
|
|
|
|
|
|
|
|
|
struct complaint stab_info_questionable_complaint =
|
|
|
|
|
{"elf/stab section information questionable for %s", 0, 0};
|
|
|
|
|
|
1992-02-22 01:46:16 +00:00
|
|
|
|
static void
|
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (coff_symfile_finish): Add function, prototype, and
add to the xxxx_sym_fns struct for each file type. Also reformat
the xxxx_sym_fns vector to a standard format and add comments.
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (xxx_symfile_new_init, xxx_symfile_init, xxx_symfile_read):
Pass pointer to struct objfile rather than pointer to sym_fns.
Change references inside each function accordingly. Allocate any
symbol file specific info in the per-objfile memory region.
* dbxread.c (free_and_init_header_files): Break function into
free_header_files(), called from dbx_symfile_finish(), and
init_header_files(), called from dbx_new_init().
* dbxread.c (dbx_new_init): Move deallocation things to new
dbx_symfile_finish function.
* elfread.c (elf_new_init): Call buildsym_new_init().
* objfiles.c (free_objfile): Call the appropriate symfile_finish()
routine for the objfile before deallocating other stuff.
* sparc-tdep.c (get_longjmp_target): Cast target_read_memory arg.
* symfile.h: Move struct sym_fns to before struct objfile def.
Add sym_finish function pointer and change prototypes of other
function pointers to reflect passing struct objfile pointer rather
than struct sym_fns pointer.
* symfile.c: Remove now obsolete symtab_fns pointer.
* symfile.c (symfile_init): Renamed to find_sym_fns, and now only
locates the correct sym_fns struct for the given objfile.
* symfile.c (syms_from_objfile, symbol_file_add): Restructured
for better support of mapped symbol tables.
* symfile.c (symbol_file_command): Remove obsolete code using
symfile_fns.
* symfile.h: Remove duplicate declarations for symfile_objfile,
entry_point, and object_files.
* target.c (target_info): Compare symfile_objfile to NULL.
* xcoffread.c (aixcoff_new_init): Move deallocation stuff to
aixcoff_symfile_finish().
1992-03-19 21:57:15 +00:00
|
|
|
|
elf_symfile_init PARAMS ((struct objfile *));
|
1992-02-22 01:46:16 +00:00
|
|
|
|
|
|
|
|
|
static void
|
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (coff_symfile_finish): Add function, prototype, and
add to the xxxx_sym_fns struct for each file type. Also reformat
the xxxx_sym_fns vector to a standard format and add comments.
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (xxx_symfile_new_init, xxx_symfile_init, xxx_symfile_read):
Pass pointer to struct objfile rather than pointer to sym_fns.
Change references inside each function accordingly. Allocate any
symbol file specific info in the per-objfile memory region.
* dbxread.c (free_and_init_header_files): Break function into
free_header_files(), called from dbx_symfile_finish(), and
init_header_files(), called from dbx_new_init().
* dbxread.c (dbx_new_init): Move deallocation things to new
dbx_symfile_finish function.
* elfread.c (elf_new_init): Call buildsym_new_init().
* objfiles.c (free_objfile): Call the appropriate symfile_finish()
routine for the objfile before deallocating other stuff.
* sparc-tdep.c (get_longjmp_target): Cast target_read_memory arg.
* symfile.h: Move struct sym_fns to before struct objfile def.
Add sym_finish function pointer and change prototypes of other
function pointers to reflect passing struct objfile pointer rather
than struct sym_fns pointer.
* symfile.c: Remove now obsolete symtab_fns pointer.
* symfile.c (symfile_init): Renamed to find_sym_fns, and now only
locates the correct sym_fns struct for the given objfile.
* symfile.c (syms_from_objfile, symbol_file_add): Restructured
for better support of mapped symbol tables.
* symfile.c (symbol_file_command): Remove obsolete code using
symfile_fns.
* symfile.h: Remove duplicate declarations for symfile_objfile,
entry_point, and object_files.
* target.c (target_info): Compare symfile_objfile to NULL.
* xcoffread.c (aixcoff_new_init): Move deallocation stuff to
aixcoff_symfile_finish().
1992-03-19 21:57:15 +00:00
|
|
|
|
elf_new_init PARAMS ((struct objfile *));
|
1992-02-22 01:46:16 +00:00
|
|
|
|
|
|
|
|
|
static void
|
1992-07-04 13:59:03 +00:00
|
|
|
|
elf_symfile_read PARAMS ((struct objfile *, struct section_offsets *, int));
|
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (coff_symfile_finish): Add function, prototype, and
add to the xxxx_sym_fns struct for each file type. Also reformat
the xxxx_sym_fns vector to a standard format and add comments.
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (xxx_symfile_new_init, xxx_symfile_init, xxx_symfile_read):
Pass pointer to struct objfile rather than pointer to sym_fns.
Change references inside each function accordingly. Allocate any
symbol file specific info in the per-objfile memory region.
* dbxread.c (free_and_init_header_files): Break function into
free_header_files(), called from dbx_symfile_finish(), and
init_header_files(), called from dbx_new_init().
* dbxread.c (dbx_new_init): Move deallocation things to new
dbx_symfile_finish function.
* elfread.c (elf_new_init): Call buildsym_new_init().
* objfiles.c (free_objfile): Call the appropriate symfile_finish()
routine for the objfile before deallocating other stuff.
* sparc-tdep.c (get_longjmp_target): Cast target_read_memory arg.
* symfile.h: Move struct sym_fns to before struct objfile def.
Add sym_finish function pointer and change prototypes of other
function pointers to reflect passing struct objfile pointer rather
than struct sym_fns pointer.
* symfile.c: Remove now obsolete symtab_fns pointer.
* symfile.c (symfile_init): Renamed to find_sym_fns, and now only
locates the correct sym_fns struct for the given objfile.
* symfile.c (syms_from_objfile, symbol_file_add): Restructured
for better support of mapped symbol tables.
* symfile.c (symbol_file_command): Remove obsolete code using
symfile_fns.
* symfile.h: Remove duplicate declarations for symfile_objfile,
entry_point, and object_files.
* target.c (target_info): Compare symfile_objfile to NULL.
* xcoffread.c (aixcoff_new_init): Move deallocation stuff to
aixcoff_symfile_finish().
1992-03-19 21:57:15 +00:00
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
elf_symfile_finish PARAMS ((struct objfile *));
|
1992-02-22 01:46:16 +00:00
|
|
|
|
|
|
|
|
|
static void
|
1992-03-29 23:26:47 +00:00
|
|
|
|
elf_symtab_read PARAMS ((bfd *, CORE_ADDR, struct objfile *));
|
1992-02-22 01:46:16 +00:00
|
|
|
|
|
1992-07-04 13:59:03 +00:00
|
|
|
|
static void
|
1993-10-03 01:50:53 +00:00
|
|
|
|
free_elfinfo PARAMS ((void *));
|
1992-07-04 13:59:03 +00:00
|
|
|
|
|
|
|
|
|
static struct section_offsets *
|
|
|
|
|
elf_symfile_offsets PARAMS ((struct objfile *, CORE_ADDR));
|
|
|
|
|
|
* dbxread.c, i386-pinsn.c, i386-tdep.c, regex.c, solib.c, symmisc.c,
symtab.h, tm-i386v4.h, valprint.c, values.c: Lint.
* breakpoint.c, c-exp.y, coffread.c, command.c, environ.c, eval.c,
findvar.c, infcmd.c, infptrace.c, infrun.c, m2-exp.y, parse.c,
putenv.c, solib.c, sparc-xdep.c, symtab.c, tm-i386v.h, tm-sparc.h,
utils.c, valarith.c, valops.c, valprint.c, values.c:
Replace bcopy() use with memcpy(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
* breakpoint.c, buildsym.c, coffread.c, dbxread.c, i386-tdep.c,
ieee-float.c, infcmd.c, sparc-tdep.c, stack.c, symtab.c, symtab.h,
target.c, values.c:
Replace bzero() use with memset(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
* i386-tdep.c, main.c, valprint.c:
Replace bcmp() use with memcmp(), which is more standard and can
take advantage of gcc's builtin functions for increased performance.
1992-06-29 23:34:38 +00:00
|
|
|
|
static void
|
|
|
|
|
record_minimal_symbol_and_info PARAMS ((char *, CORE_ADDR,
|
|
|
|
|
enum minimal_symbol_type, char *,
|
|
|
|
|
struct objfile *));
|
1992-02-22 01:46:16 +00:00
|
|
|
|
|
|
|
|
|
static void
|
1993-10-03 01:50:53 +00:00
|
|
|
|
elf_locate_sections PARAMS ((bfd *, asection *, void *));
|
1992-02-22 01:46:16 +00:00
|
|
|
|
|
1991-10-24 11:28:54 +00:00
|
|
|
|
/* We are called once per section from elf_symfile_read. We
|
|
|
|
|
need to examine each section we are passed, check to see
|
|
|
|
|
if it is something we are interested in processing, and
|
|
|
|
|
if so, stash away some access information for the section.
|
|
|
|
|
|
|
|
|
|
For now we recognize the dwarf debug information sections and
|
|
|
|
|
line number sections from matching their section names. The
|
|
|
|
|
ELF definition is no real help here since it has no direct
|
|
|
|
|
knowledge of DWARF (by design, so any debugging format can be
|
|
|
|
|
used).
|
|
|
|
|
|
1992-06-13 07:24:30 +00:00
|
|
|
|
We also recognize the ".stab" sections used by the Sun compilers
|
|
|
|
|
released with Solaris 2.
|
|
|
|
|
|
1993-09-29 04:25:15 +00:00
|
|
|
|
FIXME: The section names should not be hardwired strings (what
|
|
|
|
|
should they be? I don't think most object file formats have enough
|
|
|
|
|
section flags to specify what kind of debug section it is
|
|
|
|
|
-kingdon). */
|
1991-10-24 11:28:54 +00:00
|
|
|
|
|
|
|
|
|
static void
|
1992-03-29 23:26:47 +00:00
|
|
|
|
elf_locate_sections (ignore_abfd, sectp, eip)
|
|
|
|
|
bfd *ignore_abfd;
|
1992-02-22 01:46:16 +00:00
|
|
|
|
asection *sectp;
|
|
|
|
|
PTR eip;
|
1991-10-24 11:28:54 +00:00
|
|
|
|
{
|
1992-02-22 01:46:16 +00:00
|
|
|
|
register struct elfinfo *ei;
|
|
|
|
|
|
|
|
|
|
ei = (struct elfinfo *) eip;
|
1991-10-24 11:28:54 +00:00
|
|
|
|
if (STREQ (sectp -> name, ".debug"))
|
|
|
|
|
{
|
|
|
|
|
ei -> dboffset = sectp -> filepos;
|
1992-01-24 23:13:14 +00:00
|
|
|
|
ei -> dbsize = bfd_get_section_size_before_reloc (sectp);
|
1991-10-24 11:28:54 +00:00
|
|
|
|
}
|
|
|
|
|
else if (STREQ (sectp -> name, ".line"))
|
|
|
|
|
{
|
|
|
|
|
ei -> lnoffset = sectp -> filepos;
|
1992-01-24 23:13:14 +00:00
|
|
|
|
ei -> lnsize = bfd_get_section_size_before_reloc (sectp);
|
1991-10-24 11:28:54 +00:00
|
|
|
|
}
|
1992-06-13 07:24:30 +00:00
|
|
|
|
else if (STREQ (sectp -> name, ".stab"))
|
|
|
|
|
{
|
|
|
|
|
ei -> stabsect = sectp;
|
|
|
|
|
}
|
|
|
|
|
else if (STREQ (sectp -> name, ".stab.index"))
|
|
|
|
|
{
|
|
|
|
|
ei -> stabindexsect = sectp;
|
|
|
|
|
}
|
1993-12-06 17:31:05 +00:00
|
|
|
|
else if (STREQ (sectp -> name, ".mdebug"))
|
|
|
|
|
{
|
|
|
|
|
ei -> mdebugsect = sectp;
|
|
|
|
|
}
|
1991-10-24 11:28:54 +00:00
|
|
|
|
}
|
|
|
|
|
|
1992-02-22 01:46:16 +00:00
|
|
|
|
#if 0 /* Currently unused */
|
|
|
|
|
|
1991-12-16 20:57:28 +00:00
|
|
|
|
char *
|
1992-02-22 01:46:16 +00:00
|
|
|
|
elf_interpreter (abfd)
|
|
|
|
|
bfd *abfd;
|
1991-12-16 20:57:28 +00:00
|
|
|
|
{
|
|
|
|
|
sec_ptr interp_sec;
|
|
|
|
|
unsigned size;
|
|
|
|
|
char *interp = NULL;
|
|
|
|
|
|
|
|
|
|
interp_sec = bfd_get_section_by_name (abfd, ".interp");
|
|
|
|
|
if (interp_sec)
|
|
|
|
|
{
|
|
|
|
|
size = bfd_section_size (abfd, interp_sec);
|
|
|
|
|
interp = alloca (size);
|
|
|
|
|
if (bfd_get_section_contents (abfd, interp_sec, interp, (file_ptr)0,
|
|
|
|
|
size))
|
|
|
|
|
{
|
|
|
|
|
interp = savestring (interp, size - 1);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
interp = NULL;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
return (interp);
|
|
|
|
|
}
|
|
|
|
|
|
1992-02-22 01:46:16 +00:00
|
|
|
|
#endif
|
|
|
|
|
|
1992-06-13 07:24:30 +00:00
|
|
|
|
static void
|
|
|
|
|
record_minimal_symbol_and_info (name, address, ms_type, info, objfile)
|
|
|
|
|
char *name;
|
|
|
|
|
CORE_ADDR address;
|
|
|
|
|
enum minimal_symbol_type ms_type;
|
|
|
|
|
char *info; /* FIXME, is this really char *? */
|
|
|
|
|
struct objfile *objfile;
|
|
|
|
|
{
|
1993-09-21 21:21:35 +00:00
|
|
|
|
int section;
|
|
|
|
|
|
|
|
|
|
/* Guess the section from the type. This is likely to be wrong in
|
|
|
|
|
some cases. */
|
|
|
|
|
switch (ms_type)
|
|
|
|
|
{
|
|
|
|
|
case mst_text:
|
|
|
|
|
case mst_file_text:
|
|
|
|
|
section = SECT_OFF_TEXT;
|
|
|
|
|
break;
|
|
|
|
|
case mst_data:
|
|
|
|
|
case mst_file_data:
|
|
|
|
|
section = SECT_OFF_DATA;
|
|
|
|
|
break;
|
|
|
|
|
case mst_bss:
|
|
|
|
|
case mst_file_bss:
|
|
|
|
|
section = SECT_OFF_BSS;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
section = -1;
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
|
|
1992-06-13 07:24:30 +00:00
|
|
|
|
name = obsavestring (name, strlen (name), &objfile -> symbol_obstack);
|
1993-09-21 21:21:35 +00:00
|
|
|
|
prim_record_minimal_symbol_and_info (name, address, ms_type, info, section);
|
1992-06-13 07:24:30 +00:00
|
|
|
|
}
|
|
|
|
|
|
1991-12-16 20:57:28 +00:00
|
|
|
|
/*
|
|
|
|
|
|
|
|
|
|
LOCAL FUNCTION
|
|
|
|
|
|
|
|
|
|
elf_symtab_read -- read the symbol table of an ELF file
|
|
|
|
|
|
|
|
|
|
SYNOPSIS
|
|
|
|
|
|
1992-03-29 23:26:47 +00:00
|
|
|
|
void elf_symtab_read (bfd *abfd, CORE_ADDR addr,
|
1992-02-22 01:46:16 +00:00
|
|
|
|
struct objfile *objfile)
|
1991-12-16 20:57:28 +00:00
|
|
|
|
|
|
|
|
|
DESCRIPTION
|
|
|
|
|
|
|
|
|
|
Given an open bfd, a base address to relocate symbols to, and a
|
|
|
|
|
flag that specifies whether or not this bfd is for an executable
|
|
|
|
|
or not (may be shared library for example), add all the global
|
1992-02-22 01:46:16 +00:00
|
|
|
|
function and data symbols to the minimal symbol table.
|
1991-12-16 20:57:28 +00:00
|
|
|
|
|
1992-07-04 13:59:03 +00:00
|
|
|
|
In stabs-in-ELF, as implemented by Sun, there are some local symbols
|
|
|
|
|
defined in the ELF symbol table, which can be used to locate
|
|
|
|
|
the beginnings of sections from each ".o" file that was linked to
|
|
|
|
|
form the executable objfile. We gather any such info and record it
|
|
|
|
|
in data structures hung off the objfile's private data.
|
|
|
|
|
|
1991-12-16 20:57:28 +00:00
|
|
|
|
*/
|
|
|
|
|
|
1991-11-15 03:36:45 +00:00
|
|
|
|
static void
|
1992-03-29 23:26:47 +00:00
|
|
|
|
elf_symtab_read (abfd, addr, objfile)
|
1992-02-22 01:46:16 +00:00
|
|
|
|
bfd *abfd;
|
|
|
|
|
CORE_ADDR addr;
|
|
|
|
|
struct objfile *objfile;
|
1991-11-15 03:36:45 +00:00
|
|
|
|
{
|
|
|
|
|
unsigned int storage_needed;
|
|
|
|
|
asymbol *sym;
|
|
|
|
|
asymbol **symbol_table;
|
|
|
|
|
unsigned int number_of_symbols;
|
|
|
|
|
unsigned int i;
|
1992-07-04 13:59:03 +00:00
|
|
|
|
int index;
|
1991-11-15 03:36:45 +00:00
|
|
|
|
struct cleanup *back_to;
|
1991-12-16 20:57:28 +00:00
|
|
|
|
CORE_ADDR symaddr;
|
1992-02-22 01:46:16 +00:00
|
|
|
|
enum minimal_symbol_type ms_type;
|
1993-08-08 00:30:07 +00:00
|
|
|
|
/* If sectinfo is nonNULL, it contains section info that should end up
|
1992-07-04 13:59:03 +00:00
|
|
|
|
filed in the objfile. */
|
1993-08-08 00:30:07 +00:00
|
|
|
|
struct stab_section_info *sectinfo = NULL;
|
1992-07-04 13:59:03 +00:00
|
|
|
|
/* If filesym is nonzero, it points to a file symbol, but we haven't
|
|
|
|
|
seen any section info for it yet. */
|
|
|
|
|
asymbol *filesym = 0;
|
|
|
|
|
struct dbx_symfile_info *dbx = (struct dbx_symfile_info *)
|
1993-10-03 23:04:25 +00:00
|
|
|
|
objfile->sym_stab_info;
|
1993-08-08 00:30:07 +00:00
|
|
|
|
unsigned long size;
|
1991-11-15 03:36:45 +00:00
|
|
|
|
|
|
|
|
|
storage_needed = get_symtab_upper_bound (abfd);
|
|
|
|
|
if (storage_needed > 0)
|
|
|
|
|
{
|
1992-03-31 16:16:41 +00:00
|
|
|
|
symbol_table = (asymbol **) xmalloc (storage_needed);
|
1991-11-15 03:36:45 +00:00
|
|
|
|
back_to = make_cleanup (free, symbol_table);
|
|
|
|
|
number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table);
|
|
|
|
|
for (i = 0; i < number_of_symbols; i++)
|
|
|
|
|
{
|
1992-07-04 13:59:03 +00:00
|
|
|
|
sym = symbol_table[i];
|
1993-08-08 00:30:07 +00:00
|
|
|
|
if (sym -> name == NULL || *sym -> name == '\0')
|
1993-08-07 20:27:19 +00:00
|
|
|
|
{
|
1993-08-08 00:30:07 +00:00
|
|
|
|
/* Skip names that don't exist (shouldn't happen), or names
|
|
|
|
|
that are null strings (may happen). */
|
1993-08-07 20:27:19 +00:00
|
|
|
|
continue;
|
|
|
|
|
}
|
1993-08-08 00:30:07 +00:00
|
|
|
|
if (sym -> flags & BSF_FILE)
|
|
|
|
|
{
|
|
|
|
|
/* STT_FILE debugging symbol that helps stabs-in-elf debugging.
|
|
|
|
|
Chain any old one onto the objfile; remember new sym. */
|
|
|
|
|
if (sectinfo != NULL)
|
|
|
|
|
{
|
|
|
|
|
sectinfo -> next = dbx -> stab_section_info;
|
|
|
|
|
dbx -> stab_section_info = sectinfo;
|
|
|
|
|
sectinfo = NULL;
|
|
|
|
|
}
|
|
|
|
|
filesym = sym;
|
|
|
|
|
}
|
|
|
|
|
else if (sym -> flags & (BSF_GLOBAL | BSF_LOCAL | BSF_WEAK))
|
1991-11-15 03:36:45 +00:00
|
|
|
|
{
|
1993-08-08 00:30:07 +00:00
|
|
|
|
/* Select global/local/weak symbols. Note that bfd puts abs
|
|
|
|
|
symbols in their own section, so all symbols we are
|
|
|
|
|
interested in will have a section. */
|
1993-06-10 20:31:47 +00:00
|
|
|
|
/* Bfd symbols are section relative. */
|
|
|
|
|
symaddr = sym -> value + sym -> section -> vma;
|
1992-03-27 23:56:15 +00:00
|
|
|
|
/* Relocate all non-absolute symbols by base address. */
|
|
|
|
|
if (sym -> section != &bfd_abs_section)
|
1993-08-08 00:30:07 +00:00
|
|
|
|
{
|
|
|
|
|
symaddr += addr;
|
|
|
|
|
}
|
1991-12-16 20:57:28 +00:00
|
|
|
|
/* For non-absolute symbols, use the type of the section
|
|
|
|
|
they are relative to, to intuit text/data. Bfd provides
|
|
|
|
|
no way of figuring this out for absolute symbols. */
|
1993-08-08 00:30:07 +00:00
|
|
|
|
if (sym -> section == &bfd_abs_section)
|
|
|
|
|
{
|
|
|
|
|
ms_type = mst_abs;
|
|
|
|
|
}
|
|
|
|
|
else if (sym -> section -> flags & SEC_CODE)
|
1991-12-16 20:57:28 +00:00
|
|
|
|
{
|
1993-08-07 20:27:19 +00:00
|
|
|
|
if (sym -> flags & BSF_GLOBAL)
|
|
|
|
|
{
|
|
|
|
|
ms_type = mst_text;
|
|
|
|
|
}
|
1993-09-03 16:27:35 +00:00
|
|
|
|
else if (sym->name[0] == '.' && sym->name[1] == 'L')
|
1993-09-03 22:02:59 +00:00
|
|
|
|
/* Looks like a compiler-generated label. Skip it.
|
|
|
|
|
The assembler should be skipping these (to keep
|
|
|
|
|
executables small), but apparently with gcc on the
|
|
|
|
|
delta m88k SVR4, it loses. So to have us check too
|
|
|
|
|
should be harmless (but I encourage people to fix this
|
|
|
|
|
in the assembler instead of adding checks here). */
|
1993-09-03 16:27:35 +00:00
|
|
|
|
continue;
|
1993-08-07 20:27:19 +00:00
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
ms_type = mst_file_text;
|
|
|
|
|
}
|
1991-12-16 20:57:28 +00:00
|
|
|
|
}
|
1993-10-24 16:41:11 +00:00
|
|
|
|
else if (sym -> section -> flags & SEC_ALLOC)
|
1991-12-16 20:57:28 +00:00
|
|
|
|
{
|
1993-08-07 20:27:19 +00:00
|
|
|
|
if (sym -> flags & BSF_GLOBAL)
|
|
|
|
|
{
|
1993-10-24 16:41:11 +00:00
|
|
|
|
if (sym -> section -> flags & SEC_LOAD)
|
1993-08-07 20:27:19 +00:00
|
|
|
|
{
|
|
|
|
|
ms_type = mst_data;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
ms_type = mst_bss;
|
|
|
|
|
}
|
|
|
|
|
}
|
1993-08-08 00:30:07 +00:00
|
|
|
|
else if (sym -> flags & BSF_LOCAL)
|
1993-08-07 20:27:19 +00:00
|
|
|
|
{
|
1993-08-08 00:30:07 +00:00
|
|
|
|
/* Named Local variable in a Data section. Check its
|
|
|
|
|
name for stabs-in-elf. The STREQ macro checks the
|
|
|
|
|
first character inline, so we only actually do a
|
|
|
|
|
strcmp function call on names that start with 'B'
|
|
|
|
|
or 'D' */
|
|
|
|
|
index = SECT_OFF_MAX;
|
|
|
|
|
if (STREQ ("Bbss.bss", sym -> name))
|
|
|
|
|
{
|
|
|
|
|
index = SECT_OFF_BSS;
|
|
|
|
|
}
|
|
|
|
|
else if (STREQ ("Ddata.data", sym -> name))
|
|
|
|
|
{
|
|
|
|
|
index = SECT_OFF_DATA;
|
|
|
|
|
}
|
|
|
|
|
else if (STREQ ("Drodata.rodata", sym -> name))
|
|
|
|
|
{
|
|
|
|
|
index = SECT_OFF_RODATA;
|
|
|
|
|
}
|
|
|
|
|
if (index != SECT_OFF_MAX)
|
|
|
|
|
{
|
|
|
|
|
/* Found a special local symbol. Allocate a
|
|
|
|
|
sectinfo, if needed, and fill it in. */
|
|
|
|
|
if (sectinfo == NULL)
|
|
|
|
|
{
|
|
|
|
|
sectinfo = (struct stab_section_info *)
|
|
|
|
|
xmmalloc (objfile -> md, sizeof (*sectinfo));
|
|
|
|
|
memset ((PTR) sectinfo, 0, sizeof (*sectinfo));
|
|
|
|
|
if (filesym == NULL)
|
|
|
|
|
{
|
|
|
|
|
complain (§ion_info_complaint,
|
|
|
|
|
sym -> name);
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
sectinfo -> filename =
|
|
|
|
|
(char *) filesym -> name;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if (sectinfo -> sections[index] != 0)
|
|
|
|
|
{
|
|
|
|
|
complain (§ion_info_dup_complaint,
|
|
|
|
|
sectinfo -> filename);
|
|
|
|
|
}
|
|
|
|
|
/* Bfd symbols are section relative. */
|
|
|
|
|
symaddr = sym -> value + sym -> section -> vma;
|
|
|
|
|
/* Relocate non-absolute symbols by base address. */
|
|
|
|
|
if (sym -> section != &bfd_abs_section)
|
|
|
|
|
{
|
|
|
|
|
symaddr += addr;
|
|
|
|
|
}
|
|
|
|
|
sectinfo -> sections[index] = symaddr;
|
|
|
|
|
/* The special local symbols don't go in the
|
|
|
|
|
minimal symbol table, so ignore this one. */
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
/* Not a special stabs-in-elf symbol, do regular
|
|
|
|
|
symbol processing. */
|
1993-10-24 16:41:11 +00:00
|
|
|
|
if (sym -> section -> flags & SEC_LOAD)
|
1993-08-07 20:27:19 +00:00
|
|
|
|
{
|
|
|
|
|
ms_type = mst_file_data;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
ms_type = mst_file_bss;
|
|
|
|
|
}
|
|
|
|
|
}
|
1993-08-08 00:30:07 +00:00
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
ms_type = mst_unknown;
|
|
|
|
|
}
|
1991-12-16 20:57:28 +00:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
1992-07-03 07:08:31 +00:00
|
|
|
|
/* FIXME: Solaris2 shared libraries include lots of
|
|
|
|
|
odd "absolute" and "undefined" symbols, that play
|
|
|
|
|
hob with actions like finding what function the PC
|
1993-08-07 20:27:19 +00:00
|
|
|
|
is in. Ignore them if they aren't text, data, or bss. */
|
1992-07-03 07:08:31 +00:00
|
|
|
|
/* ms_type = mst_unknown; */
|
|
|
|
|
continue; /* Skip this symbol. */
|
1991-12-16 20:57:28 +00:00
|
|
|
|
}
|
1992-06-13 07:24:30 +00:00
|
|
|
|
/* Pass symbol size field in via BFD. FIXME!!! */
|
1993-09-06 22:08:31 +00:00
|
|
|
|
size = ((elf_symbol_type *) sym) -> internal_elf_sym.st_size;
|
1993-08-08 00:30:07 +00:00
|
|
|
|
record_minimal_symbol_and_info ((char *) sym -> name, symaddr,
|
|
|
|
|
ms_type, (PTR) size, objfile);
|
1992-07-04 13:59:03 +00:00
|
|
|
|
}
|
1991-11-15 03:36:45 +00:00
|
|
|
|
}
|
|
|
|
|
do_cleanups (back_to);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
1991-10-24 11:28:54 +00:00
|
|
|
|
/* Scan and build partial symbols for a symbol file.
|
|
|
|
|
We have been initialized by a call to elf_symfile_init, which
|
|
|
|
|
currently does nothing.
|
|
|
|
|
|
1992-07-04 13:59:03 +00:00
|
|
|
|
SECTION_OFFSETS is a set of offsets to apply to relocate the symbols
|
|
|
|
|
in each section. We simplify it down to a single offset for all
|
|
|
|
|
symbols. FIXME.
|
1991-10-24 11:28:54 +00:00
|
|
|
|
|
|
|
|
|
MAINLINE is true if we are reading the main symbol
|
|
|
|
|
table (as opposed to a shared lib or dynamically loaded file).
|
|
|
|
|
|
|
|
|
|
This function only does the minimum work necessary for letting the
|
|
|
|
|
user "name" things symbolically; it does not read the entire symtab.
|
|
|
|
|
Instead, it reads the external and static symbols and puts them in partial
|
|
|
|
|
symbol tables. When more extensive information is requested of a
|
|
|
|
|
file, the corresponding partial symbol table is mutated into a full
|
|
|
|
|
fledged symbol table by going back and reading the symbols
|
1992-06-13 07:24:30 +00:00
|
|
|
|
for real.
|
|
|
|
|
|
|
|
|
|
We look for sections with specific names, to tell us what debug
|
|
|
|
|
format to look for: FIXME!!!
|
|
|
|
|
|
|
|
|
|
dwarf_build_psymtabs() builds psymtabs for DWARF symbols;
|
1993-12-06 17:31:05 +00:00
|
|
|
|
elfstab_build_psymtabs() handles STABS symbols;
|
|
|
|
|
mdebug_build_psymtabs() handles ECOFF debugging information.
|
1991-11-15 03:36:45 +00:00
|
|
|
|
|
|
|
|
|
Note that ELF files have a "minimal" symbol table, which looks a lot
|
|
|
|
|
like a COFF symbol table, but has only the minimal information necessary
|
1992-06-13 07:24:30 +00:00
|
|
|
|
for linking. We process this also, and use the information to
|
|
|
|
|
build gdb's minimal symbol table. This gives us some minimal debugging
|
|
|
|
|
capability even for files compiled without -g. */
|
1991-10-24 11:28:54 +00:00
|
|
|
|
|
|
|
|
|
static void
|
1992-07-04 13:59:03 +00:00
|
|
|
|
elf_symfile_read (objfile, section_offsets, mainline)
|
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (coff_symfile_finish): Add function, prototype, and
add to the xxxx_sym_fns struct for each file type. Also reformat
the xxxx_sym_fns vector to a standard format and add comments.
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (xxx_symfile_new_init, xxx_symfile_init, xxx_symfile_read):
Pass pointer to struct objfile rather than pointer to sym_fns.
Change references inside each function accordingly. Allocate any
symbol file specific info in the per-objfile memory region.
* dbxread.c (free_and_init_header_files): Break function into
free_header_files(), called from dbx_symfile_finish(), and
init_header_files(), called from dbx_new_init().
* dbxread.c (dbx_new_init): Move deallocation things to new
dbx_symfile_finish function.
* elfread.c (elf_new_init): Call buildsym_new_init().
* objfiles.c (free_objfile): Call the appropriate symfile_finish()
routine for the objfile before deallocating other stuff.
* sparc-tdep.c (get_longjmp_target): Cast target_read_memory arg.
* symfile.h: Move struct sym_fns to before struct objfile def.
Add sym_finish function pointer and change prototypes of other
function pointers to reflect passing struct objfile pointer rather
than struct sym_fns pointer.
* symfile.c: Remove now obsolete symtab_fns pointer.
* symfile.c (symfile_init): Renamed to find_sym_fns, and now only
locates the correct sym_fns struct for the given objfile.
* symfile.c (syms_from_objfile, symbol_file_add): Restructured
for better support of mapped symbol tables.
* symfile.c (symbol_file_command): Remove obsolete code using
symfile_fns.
* symfile.h: Remove duplicate declarations for symfile_objfile,
entry_point, and object_files.
* target.c (target_info): Compare symfile_objfile to NULL.
* xcoffread.c (aixcoff_new_init): Move deallocation stuff to
aixcoff_symfile_finish().
1992-03-19 21:57:15 +00:00
|
|
|
|
struct objfile *objfile;
|
1992-07-04 13:59:03 +00:00
|
|
|
|
struct section_offsets *section_offsets;
|
1992-02-22 01:46:16 +00:00
|
|
|
|
int mainline;
|
1991-10-24 11:28:54 +00:00
|
|
|
|
{
|
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (coff_symfile_finish): Add function, prototype, and
add to the xxxx_sym_fns struct for each file type. Also reformat
the xxxx_sym_fns vector to a standard format and add comments.
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (xxx_symfile_new_init, xxx_symfile_init, xxx_symfile_read):
Pass pointer to struct objfile rather than pointer to sym_fns.
Change references inside each function accordingly. Allocate any
symbol file specific info in the per-objfile memory region.
* dbxread.c (free_and_init_header_files): Break function into
free_header_files(), called from dbx_symfile_finish(), and
init_header_files(), called from dbx_new_init().
* dbxread.c (dbx_new_init): Move deallocation things to new
dbx_symfile_finish function.
* elfread.c (elf_new_init): Call buildsym_new_init().
* objfiles.c (free_objfile): Call the appropriate symfile_finish()
routine for the objfile before deallocating other stuff.
* sparc-tdep.c (get_longjmp_target): Cast target_read_memory arg.
* symfile.h: Move struct sym_fns to before struct objfile def.
Add sym_finish function pointer and change prototypes of other
function pointers to reflect passing struct objfile pointer rather
than struct sym_fns pointer.
* symfile.c: Remove now obsolete symtab_fns pointer.
* symfile.c (symfile_init): Renamed to find_sym_fns, and now only
locates the correct sym_fns struct for the given objfile.
* symfile.c (syms_from_objfile, symbol_file_add): Restructured
for better support of mapped symbol tables.
* symfile.c (symbol_file_command): Remove obsolete code using
symfile_fns.
* symfile.h: Remove duplicate declarations for symfile_objfile,
entry_point, and object_files.
* target.c (target_info): Compare symfile_objfile to NULL.
* xcoffread.c (aixcoff_new_init): Move deallocation stuff to
aixcoff_symfile_finish().
1992-03-19 21:57:15 +00:00
|
|
|
|
bfd *abfd = objfile->obfd;
|
1991-10-24 11:28:54 +00:00
|
|
|
|
struct elfinfo ei;
|
1991-11-15 03:36:45 +00:00
|
|
|
|
struct cleanup *back_to;
|
1992-06-13 07:24:30 +00:00
|
|
|
|
CORE_ADDR offset;
|
1991-10-24 11:28:54 +00:00
|
|
|
|
|
1992-02-22 01:46:16 +00:00
|
|
|
|
init_minimal_symbol_collection ();
|
|
|
|
|
back_to = make_cleanup (discard_minimal_symbols, 0);
|
1991-11-15 03:36:45 +00:00
|
|
|
|
|
1992-07-04 13:59:03 +00:00
|
|
|
|
memset ((char *) &ei, 0, sizeof (ei));
|
1992-04-01 03:09:02 +00:00
|
|
|
|
|
1992-07-04 13:59:03 +00:00
|
|
|
|
/* Allocate struct to keep track of the symfile */
|
1993-10-03 23:04:25 +00:00
|
|
|
|
objfile->sym_stab_info = (PTR)
|
1992-07-04 13:59:03 +00:00
|
|
|
|
xmmalloc (objfile -> md, sizeof (struct dbx_symfile_info));
|
1993-10-03 23:04:25 +00:00
|
|
|
|
memset ((char *) objfile->sym_stab_info, 0, sizeof (struct dbx_symfile_info));
|
1992-07-04 13:59:03 +00:00
|
|
|
|
make_cleanup (free_elfinfo, (PTR) objfile);
|
1992-04-01 03:09:02 +00:00
|
|
|
|
|
1992-07-04 13:59:03 +00:00
|
|
|
|
/* Process the normal ELF symbol table first. This may write some
|
1993-10-03 23:04:25 +00:00
|
|
|
|
chain of info into the dbx_symfile_info in objfile->sym_stab_info,
|
1992-07-04 13:59:03 +00:00
|
|
|
|
which can later be used by elfstab_offset_sections. */
|
1991-11-15 03:36:45 +00:00
|
|
|
|
|
1992-07-04 13:59:03 +00:00
|
|
|
|
/* FIXME, should take a section_offsets param, not just an offset. */
|
|
|
|
|
offset = ANOFFSET (section_offsets, 0);
|
1992-06-13 07:24:30 +00:00
|
|
|
|
elf_symtab_read (abfd, offset, objfile);
|
1991-11-15 03:36:45 +00:00
|
|
|
|
|
1992-06-13 07:24:30 +00:00
|
|
|
|
/* Now process debugging information, which is contained in
|
1991-11-15 03:36:45 +00:00
|
|
|
|
special ELF sections. We first have to find them... */
|
|
|
|
|
|
1992-02-22 01:46:16 +00:00
|
|
|
|
bfd_map_over_sections (abfd, elf_locate_sections, (PTR) &ei);
|
1991-10-24 11:28:54 +00:00
|
|
|
|
if (ei.dboffset && ei.lnoffset)
|
|
|
|
|
{
|
1992-06-13 07:24:30 +00:00
|
|
|
|
/* DWARF sections */
|
1992-10-15 13:40:40 +00:00
|
|
|
|
dwarf_build_psymtabs (objfile,
|
1992-07-04 13:59:03 +00:00
|
|
|
|
section_offsets, mainline,
|
1991-10-24 11:28:54 +00:00
|
|
|
|
ei.dboffset, ei.dbsize,
|
1992-10-15 13:40:40 +00:00
|
|
|
|
ei.lnoffset, ei.lnsize);
|
1991-10-24 11:28:54 +00:00
|
|
|
|
}
|
1992-06-13 07:24:30 +00:00
|
|
|
|
if (ei.stabsect)
|
|
|
|
|
{
|
|
|
|
|
/* STABS sections */
|
|
|
|
|
|
|
|
|
|
/* FIXME: Sun didn't really know how to implement this well.
|
|
|
|
|
They made .stab sections that don't point to the .stabstr
|
|
|
|
|
section with the sh_link field. BFD doesn't make string table
|
|
|
|
|
sections visible to the caller. So we have to search the
|
|
|
|
|
ELF section table, not the BFD section table, for the string
|
|
|
|
|
table. */
|
1993-05-25 20:21:06 +00:00
|
|
|
|
struct elf32_internal_shdr *elf_sect;
|
1992-06-13 07:24:30 +00:00
|
|
|
|
|
1993-06-25 18:51:11 +00:00
|
|
|
|
elf_sect = bfd_elf_find_section (abfd, ".stabstr");
|
1992-06-13 07:24:30 +00:00
|
|
|
|
if (elf_sect)
|
|
|
|
|
elfstab_build_psymtabs (objfile,
|
1992-07-04 13:59:03 +00:00
|
|
|
|
section_offsets,
|
1992-06-13 07:24:30 +00:00
|
|
|
|
mainline,
|
|
|
|
|
ei.stabsect->filepos, /* .stab offset */
|
|
|
|
|
bfd_get_section_size_before_reloc (ei.stabsect),/* .stab size */
|
1992-10-15 13:40:40 +00:00
|
|
|
|
(file_ptr) elf_sect->sh_offset, /* .stabstr offset */
|
1992-06-13 07:24:30 +00:00
|
|
|
|
elf_sect->sh_size); /* .stabstr size */
|
|
|
|
|
}
|
1993-12-06 17:31:05 +00:00
|
|
|
|
if (ei.mdebugsect)
|
|
|
|
|
{
|
|
|
|
|
const struct ecoff_debug_swap *swap;
|
|
|
|
|
|
|
|
|
|
/* .mdebug section, presumably holding ECOFF debugging
|
|
|
|
|
information. */
|
|
|
|
|
swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
|
|
|
|
|
if (swap)
|
|
|
|
|
elfmdebug_build_psymtabs (objfile, swap, ei.mdebugsect,
|
|
|
|
|
section_offsets);
|
|
|
|
|
}
|
1991-11-15 03:36:45 +00:00
|
|
|
|
|
1992-02-22 01:46:16 +00:00
|
|
|
|
if (!have_partial_symbols ())
|
1991-10-24 11:28:54 +00:00
|
|
|
|
{
|
|
|
|
|
wrap_here ("");
|
|
|
|
|
printf_filtered ("(no debugging symbols found)...");
|
|
|
|
|
wrap_here ("");
|
|
|
|
|
}
|
1991-11-15 03:36:45 +00:00
|
|
|
|
|
1992-02-22 01:46:16 +00:00
|
|
|
|
/* Install any minimal symbols that have been collected as the current
|
|
|
|
|
minimal symbols for this objfile. */
|
|
|
|
|
|
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (coff_symfile_finish): Add function, prototype, and
add to the xxxx_sym_fns struct for each file type. Also reformat
the xxxx_sym_fns vector to a standard format and add comments.
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (xxx_symfile_new_init, xxx_symfile_init, xxx_symfile_read):
Pass pointer to struct objfile rather than pointer to sym_fns.
Change references inside each function accordingly. Allocate any
symbol file specific info in the per-objfile memory region.
* dbxread.c (free_and_init_header_files): Break function into
free_header_files(), called from dbx_symfile_finish(), and
init_header_files(), called from dbx_new_init().
* dbxread.c (dbx_new_init): Move deallocation things to new
dbx_symfile_finish function.
* elfread.c (elf_new_init): Call buildsym_new_init().
* objfiles.c (free_objfile): Call the appropriate symfile_finish()
routine for the objfile before deallocating other stuff.
* sparc-tdep.c (get_longjmp_target): Cast target_read_memory arg.
* symfile.h: Move struct sym_fns to before struct objfile def.
Add sym_finish function pointer and change prototypes of other
function pointers to reflect passing struct objfile pointer rather
than struct sym_fns pointer.
* symfile.c: Remove now obsolete symtab_fns pointer.
* symfile.c (symfile_init): Renamed to find_sym_fns, and now only
locates the correct sym_fns struct for the given objfile.
* symfile.c (syms_from_objfile, symbol_file_add): Restructured
for better support of mapped symbol tables.
* symfile.c (symbol_file_command): Remove obsolete code using
symfile_fns.
* symfile.h: Remove duplicate declarations for symfile_objfile,
entry_point, and object_files.
* target.c (target_info): Compare symfile_objfile to NULL.
* xcoffread.c (aixcoff_new_init): Move deallocation stuff to
aixcoff_symfile_finish().
1992-03-19 21:57:15 +00:00
|
|
|
|
install_minimal_symbols (objfile);
|
1992-02-22 01:46:16 +00:00
|
|
|
|
|
1991-11-15 03:36:45 +00:00
|
|
|
|
do_cleanups (back_to);
|
1991-10-24 11:28:54 +00:00
|
|
|
|
}
|
|
|
|
|
|
1993-10-03 23:04:25 +00:00
|
|
|
|
/* This cleans up the objfile's sym_stab_info pointer, and the chain of
|
1992-07-04 13:59:03 +00:00
|
|
|
|
stab_section_info's, that might be dangling from it. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
free_elfinfo (objp)
|
|
|
|
|
PTR objp;
|
|
|
|
|
{
|
|
|
|
|
struct objfile *objfile = (struct objfile *)objp;
|
|
|
|
|
struct dbx_symfile_info *dbxinfo = (struct dbx_symfile_info *)
|
1993-10-03 23:04:25 +00:00
|
|
|
|
objfile->sym_stab_info;
|
1992-07-04 13:59:03 +00:00
|
|
|
|
struct stab_section_info *ssi, *nssi;
|
|
|
|
|
|
|
|
|
|
ssi = dbxinfo->stab_section_info;
|
|
|
|
|
while (ssi)
|
|
|
|
|
{
|
|
|
|
|
nssi = ssi->next;
|
|
|
|
|
mfree (objfile->md, ssi);
|
|
|
|
|
ssi = nssi;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
dbxinfo->stab_section_info = 0; /* Just say No mo info about this. */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
1991-10-24 11:28:54 +00:00
|
|
|
|
/* Initialize anything that needs initializing when a completely new symbol
|
|
|
|
|
file is specified (not just adding some symbols from another file, e.g. a
|
|
|
|
|
shared library).
|
|
|
|
|
|
1992-06-13 07:24:30 +00:00
|
|
|
|
We reinitialize buildsym, since we may be reading stabs from an ELF file. */
|
1991-10-24 11:28:54 +00:00
|
|
|
|
|
|
|
|
|
static void
|
1992-03-29 23:26:47 +00:00
|
|
|
|
elf_new_init (ignore)
|
|
|
|
|
struct objfile *ignore;
|
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (coff_symfile_finish): Add function, prototype, and
add to the xxxx_sym_fns struct for each file type. Also reformat
the xxxx_sym_fns vector to a standard format and add comments.
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (xxx_symfile_new_init, xxx_symfile_init, xxx_symfile_read):
Pass pointer to struct objfile rather than pointer to sym_fns.
Change references inside each function accordingly. Allocate any
symbol file specific info in the per-objfile memory region.
* dbxread.c (free_and_init_header_files): Break function into
free_header_files(), called from dbx_symfile_finish(), and
init_header_files(), called from dbx_new_init().
* dbxread.c (dbx_new_init): Move deallocation things to new
dbx_symfile_finish function.
* elfread.c (elf_new_init): Call buildsym_new_init().
* objfiles.c (free_objfile): Call the appropriate symfile_finish()
routine for the objfile before deallocating other stuff.
* sparc-tdep.c (get_longjmp_target): Cast target_read_memory arg.
* symfile.h: Move struct sym_fns to before struct objfile def.
Add sym_finish function pointer and change prototypes of other
function pointers to reflect passing struct objfile pointer rather
than struct sym_fns pointer.
* symfile.c: Remove now obsolete symtab_fns pointer.
* symfile.c (symfile_init): Renamed to find_sym_fns, and now only
locates the correct sym_fns struct for the given objfile.
* symfile.c (syms_from_objfile, symbol_file_add): Restructured
for better support of mapped symbol tables.
* symfile.c (symbol_file_command): Remove obsolete code using
symfile_fns.
* symfile.h: Remove duplicate declarations for symfile_objfile,
entry_point, and object_files.
* target.c (target_info): Compare symfile_objfile to NULL.
* xcoffread.c (aixcoff_new_init): Move deallocation stuff to
aixcoff_symfile_finish().
1992-03-19 21:57:15 +00:00
|
|
|
|
{
|
1992-07-28 04:22:18 +00:00
|
|
|
|
stabsread_new_init ();
|
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (coff_symfile_finish): Add function, prototype, and
add to the xxxx_sym_fns struct for each file type. Also reformat
the xxxx_sym_fns vector to a standard format and add comments.
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (xxx_symfile_new_init, xxx_symfile_init, xxx_symfile_read):
Pass pointer to struct objfile rather than pointer to sym_fns.
Change references inside each function accordingly. Allocate any
symbol file specific info in the per-objfile memory region.
* dbxread.c (free_and_init_header_files): Break function into
free_header_files(), called from dbx_symfile_finish(), and
init_header_files(), called from dbx_new_init().
* dbxread.c (dbx_new_init): Move deallocation things to new
dbx_symfile_finish function.
* elfread.c (elf_new_init): Call buildsym_new_init().
* objfiles.c (free_objfile): Call the appropriate symfile_finish()
routine for the objfile before deallocating other stuff.
* sparc-tdep.c (get_longjmp_target): Cast target_read_memory arg.
* symfile.h: Move struct sym_fns to before struct objfile def.
Add sym_finish function pointer and change prototypes of other
function pointers to reflect passing struct objfile pointer rather
than struct sym_fns pointer.
* symfile.c: Remove now obsolete symtab_fns pointer.
* symfile.c (symfile_init): Renamed to find_sym_fns, and now only
locates the correct sym_fns struct for the given objfile.
* symfile.c (syms_from_objfile, symbol_file_add): Restructured
for better support of mapped symbol tables.
* symfile.c (symbol_file_command): Remove obsolete code using
symfile_fns.
* symfile.h: Remove duplicate declarations for symfile_objfile,
entry_point, and object_files.
* target.c (target_info): Compare symfile_objfile to NULL.
* xcoffread.c (aixcoff_new_init): Move deallocation stuff to
aixcoff_symfile_finish().
1992-03-19 21:57:15 +00:00
|
|
|
|
buildsym_new_init ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Perform any local cleanups required when we are done with a particular
|
|
|
|
|
objfile. I.E, we are in the process of discarding all symbol information
|
|
|
|
|
for an objfile, freeing up all memory held for it, and unlinking the
|
|
|
|
|
objfile struct from the global list of known objfiles. */
|
|
|
|
|
|
|
|
|
|
static void
|
|
|
|
|
elf_symfile_finish (objfile)
|
|
|
|
|
struct objfile *objfile;
|
1991-10-24 11:28:54 +00:00
|
|
|
|
{
|
1993-10-03 23:04:25 +00:00
|
|
|
|
if (objfile -> sym_stab_info != NULL)
|
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (coff_symfile_finish): Add function, prototype, and
add to the xxxx_sym_fns struct for each file type. Also reformat
the xxxx_sym_fns vector to a standard format and add comments.
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (xxx_symfile_new_init, xxx_symfile_init, xxx_symfile_read):
Pass pointer to struct objfile rather than pointer to sym_fns.
Change references inside each function accordingly. Allocate any
symbol file specific info in the per-objfile memory region.
* dbxread.c (free_and_init_header_files): Break function into
free_header_files(), called from dbx_symfile_finish(), and
init_header_files(), called from dbx_new_init().
* dbxread.c (dbx_new_init): Move deallocation things to new
dbx_symfile_finish function.
* elfread.c (elf_new_init): Call buildsym_new_init().
* objfiles.c (free_objfile): Call the appropriate symfile_finish()
routine for the objfile before deallocating other stuff.
* sparc-tdep.c (get_longjmp_target): Cast target_read_memory arg.
* symfile.h: Move struct sym_fns to before struct objfile def.
Add sym_finish function pointer and change prototypes of other
function pointers to reflect passing struct objfile pointer rather
than struct sym_fns pointer.
* symfile.c: Remove now obsolete symtab_fns pointer.
* symfile.c (symfile_init): Renamed to find_sym_fns, and now only
locates the correct sym_fns struct for the given objfile.
* symfile.c (syms_from_objfile, symbol_file_add): Restructured
for better support of mapped symbol tables.
* symfile.c (symbol_file_command): Remove obsolete code using
symfile_fns.
* symfile.h: Remove duplicate declarations for symfile_objfile,
entry_point, and object_files.
* target.c (target_info): Compare symfile_objfile to NULL.
* xcoffread.c (aixcoff_new_init): Move deallocation stuff to
aixcoff_symfile_finish().
1992-03-19 21:57:15 +00:00
|
|
|
|
{
|
1993-10-03 23:04:25 +00:00
|
|
|
|
mfree (objfile -> md, objfile -> sym_stab_info);
|
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (coff_symfile_finish): Add function, prototype, and
add to the xxxx_sym_fns struct for each file type. Also reformat
the xxxx_sym_fns vector to a standard format and add comments.
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (xxx_symfile_new_init, xxx_symfile_init, xxx_symfile_read):
Pass pointer to struct objfile rather than pointer to sym_fns.
Change references inside each function accordingly. Allocate any
symbol file specific info in the per-objfile memory region.
* dbxread.c (free_and_init_header_files): Break function into
free_header_files(), called from dbx_symfile_finish(), and
init_header_files(), called from dbx_new_init().
* dbxread.c (dbx_new_init): Move deallocation things to new
dbx_symfile_finish function.
* elfread.c (elf_new_init): Call buildsym_new_init().
* objfiles.c (free_objfile): Call the appropriate symfile_finish()
routine for the objfile before deallocating other stuff.
* sparc-tdep.c (get_longjmp_target): Cast target_read_memory arg.
* symfile.h: Move struct sym_fns to before struct objfile def.
Add sym_finish function pointer and change prototypes of other
function pointers to reflect passing struct objfile pointer rather
than struct sym_fns pointer.
* symfile.c: Remove now obsolete symtab_fns pointer.
* symfile.c (symfile_init): Renamed to find_sym_fns, and now only
locates the correct sym_fns struct for the given objfile.
* symfile.c (syms_from_objfile, symbol_file_add): Restructured
for better support of mapped symbol tables.
* symfile.c (symbol_file_command): Remove obsolete code using
symfile_fns.
* symfile.h: Remove duplicate declarations for symfile_objfile,
entry_point, and object_files.
* target.c (target_info): Compare symfile_objfile to NULL.
* xcoffread.c (aixcoff_new_init): Move deallocation stuff to
aixcoff_symfile_finish().
1992-03-19 21:57:15 +00:00
|
|
|
|
}
|
1991-10-24 11:28:54 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* ELF specific initialization routine for reading symbols.
|
|
|
|
|
|
|
|
|
|
It is passed a pointer to a struct sym_fns which contains, among other
|
|
|
|
|
things, the BFD for the file whose symbols are being read, and a slot for
|
|
|
|
|
a pointer to "private data" which we can fill with goodies.
|
|
|
|
|
|
|
|
|
|
For now at least, we have nothing in particular to do, so this function is
|
|
|
|
|
just a stub. */
|
|
|
|
|
|
|
|
|
|
static void
|
1992-03-29 23:26:47 +00:00
|
|
|
|
elf_symfile_init (ignore)
|
|
|
|
|
struct objfile *ignore;
|
1991-10-24 11:28:54 +00:00
|
|
|
|
{
|
|
|
|
|
}
|
|
|
|
|
|
1992-07-04 13:59:03 +00:00
|
|
|
|
/* ELF specific parsing routine for section offsets.
|
|
|
|
|
|
|
|
|
|
Plain and simple for now. */
|
|
|
|
|
|
|
|
|
|
static
|
|
|
|
|
struct section_offsets *
|
|
|
|
|
elf_symfile_offsets (objfile, addr)
|
|
|
|
|
struct objfile *objfile;
|
|
|
|
|
CORE_ADDR addr;
|
|
|
|
|
{
|
|
|
|
|
struct section_offsets *section_offsets;
|
|
|
|
|
int i;
|
* symfile.c (reread_symbols): When re-reading symbols, do all the
right operations ourself, rather than calling symbol_file_command.
If we re-read something, call clear_symtab_users not just
breakpoint_re_set.
* objfiles.h, objfiles.c (build_objfile_section_table): No longer
static.
* symfile.c (clear_symtab_users): Call clear_pc_function_cache.
* coffread.c, dbxread.c, elfread.c, mipsread.c, nlmread.c, paread.c
(*_symfile_offsets): Set objfile->num_sections.
* remote.c (remote_wait), symfile.c (syms_from_objfile):
Don't muck with objfile->num_sections now that all the symbol
readers set it.
* elfread.c: Clean up obsolete comment about handling only DWARF.
* paread.c: Remove comment about how we should use an "ordinary"
file format with an hppa suffix. There is nothing ordinary about SOM.
1993-10-30 20:21:19 +00:00
|
|
|
|
|
|
|
|
|
objfile->num_sections = SECT_OFF_MAX;
|
1992-07-04 13:59:03 +00:00
|
|
|
|
section_offsets = (struct section_offsets *)
|
|
|
|
|
obstack_alloc (&objfile -> psymbol_obstack,
|
* symfile.c (reread_symbols): When re-reading symbols, do all the
right operations ourself, rather than calling symbol_file_command.
If we re-read something, call clear_symtab_users not just
breakpoint_re_set.
* objfiles.h, objfiles.c (build_objfile_section_table): No longer
static.
* symfile.c (clear_symtab_users): Call clear_pc_function_cache.
* coffread.c, dbxread.c, elfread.c, mipsread.c, nlmread.c, paread.c
(*_symfile_offsets): Set objfile->num_sections.
* remote.c (remote_wait), symfile.c (syms_from_objfile):
Don't muck with objfile->num_sections now that all the symbol
readers set it.
* elfread.c: Clean up obsolete comment about handling only DWARF.
* paread.c: Remove comment about how we should use an "ordinary"
file format with an hppa suffix. There is nothing ordinary about SOM.
1993-10-30 20:21:19 +00:00
|
|
|
|
sizeof (struct section_offsets)
|
|
|
|
|
+ sizeof (section_offsets->offsets) * (SECT_OFF_MAX-1));
|
1992-07-04 13:59:03 +00:00
|
|
|
|
|
|
|
|
|
for (i = 0; i < SECT_OFF_MAX; i++)
|
|
|
|
|
ANOFFSET (section_offsets, i) = addr;
|
* symfile.c (reread_symbols): When re-reading symbols, do all the
right operations ourself, rather than calling symbol_file_command.
If we re-read something, call clear_symtab_users not just
breakpoint_re_set.
* objfiles.h, objfiles.c (build_objfile_section_table): No longer
static.
* symfile.c (clear_symtab_users): Call clear_pc_function_cache.
* coffread.c, dbxread.c, elfread.c, mipsread.c, nlmread.c, paread.c
(*_symfile_offsets): Set objfile->num_sections.
* remote.c (remote_wait), symfile.c (syms_from_objfile):
Don't muck with objfile->num_sections now that all the symbol
readers set it.
* elfread.c: Clean up obsolete comment about handling only DWARF.
* paread.c: Remove comment about how we should use an "ordinary"
file format with an hppa suffix. There is nothing ordinary about SOM.
1993-10-30 20:21:19 +00:00
|
|
|
|
|
1992-07-04 13:59:03 +00:00
|
|
|
|
return section_offsets;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* When handling an ELF file that contains Sun STABS debug info,
|
|
|
|
|
some of the debug info is relative to the particular chunk of the
|
|
|
|
|
section that was generated in its individual .o file. E.g.
|
|
|
|
|
offsets to static variables are relative to the start of the data
|
|
|
|
|
segment *for that module before linking*. This information is
|
|
|
|
|
painfully squirreled away in the ELF symbol table as local symbols
|
|
|
|
|
with wierd names. Go get 'em when needed. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
elfstab_offset_sections (objfile, pst)
|
|
|
|
|
struct objfile *objfile;
|
|
|
|
|
struct partial_symtab *pst;
|
|
|
|
|
{
|
|
|
|
|
char *filename = pst->filename;
|
|
|
|
|
struct dbx_symfile_info *dbx = (struct dbx_symfile_info *)
|
1993-10-03 23:04:25 +00:00
|
|
|
|
objfile->sym_stab_info;
|
1992-07-04 13:59:03 +00:00
|
|
|
|
struct stab_section_info *maybe = dbx->stab_section_info;
|
|
|
|
|
struct stab_section_info *questionable = 0;
|
|
|
|
|
int i;
|
|
|
|
|
char *p;
|
|
|
|
|
|
|
|
|
|
/* The ELF symbol info doesn't include path names, so strip the path
|
|
|
|
|
(if any) from the psymtab filename. */
|
|
|
|
|
while (0 != (p = strchr (filename, '/')))
|
|
|
|
|
filename = p+1;
|
|
|
|
|
|
|
|
|
|
/* FIXME: This linear search could speed up significantly
|
|
|
|
|
if it was chained in the right order to match how we search it,
|
|
|
|
|
and if we unchained when we found a match. */
|
|
|
|
|
for (; maybe; maybe = maybe->next)
|
|
|
|
|
{
|
|
|
|
|
if (filename[0] == maybe->filename[0]
|
* defs.h (STRCMP, STREQ, STREQN): New macros.
* defs.h (demangle_and_match): Remove prototype.
* dwarfread.c (STREQ, STREQN): Remove macros, replaced with STREQ
and STREQN defined in defs.h.
* dwarfread.c (set_cu_language): For completely unknown languages,
try to deduce the language from the filename. Retain behavior
that for known languages we don't know how to handle, we use
language_unknown.
* dwarfread.c (enum_type, symthesize_typedef): Initialize language
and demangled name fields in symbol.
* dwarfread.c, mipsread.c, partial-stab.h: For all usages of
ADD_PSYMBOL_TO_LIST, add language and objfile parameters.
* dwarfread.c (new_symbol): Attempt to demangle C++ symbol names
and cache the results in SYMBOL_DEMANGLED_NAME for the symbol.
* elfread.c (STREQ): Remove macro, use STREQ defined in defs.h.
Replace usages throughout.
* elfread.c (demangle.h): Include.
* elfread.c (record_minimal_symbol): Remove prototype and function.
* gdbtypes.h, symtab.h (B_SET, B_CLR, B_TST, B_TYPE, B_BYTES,
B_CLRALL): Moved from symtab.h to gdbtypes.h.
* infcmd.c (jump_command): Remove code to demangle name and add
it to a cleanup list. Now just use SYMBOL_DEMANGLED_NAME.
* minsyms.c (demangle.h): Include.
* minsyms.c (lookup_minimal_symbol): Indent comment to match code.
* minsyms.c (install_minimal_symbols): Attempt to demangle symbol
names as C++ names, and cache them in SYMBOL_DEMANGLED_NAME.
* mipsread.c (psymtab_language): Add static variable.
* stabsread.c (demangle.h): Include.
* stabsread.c (define_symbol): Attempt to demangle C++ symbol
names and cache them in the SYMBOL_DEMANGLED_NAME field.
* stack.c (return_command): Remove explicit demangling of name
and use of cleanups. Just use SYMBOL_DEMANGLED_NAME.
* symfile.c (demangle.h): Include.
* symfile.c (add_psymbol_to_list, add_psymbol_addr_to_list): Fix
to match macros in symfile.h and allow them to be compiled
if INLINE_ADD_PSYMBOL is not true.
* symfile.h (INLINE_ADD_PSYMBOL): Default to true if not set.
* symfile.h (ADD_PSYMBOL_*): Add language and objfile parameters.
Add code to demangle and cache C++ symbol names. Use macro form
if INLINE_ADD_PSYMBOL is true, otherwise use C function form.
* symmisc.c (add_psymbol_to_list, add_psymbol_addr_to_list):
Remove, also defined in symfile.c, which we already fixed.
* symtab.c (expensive_mangler): Remove prototype and function.
* symtab.c (find_methods): Remove physnames parameter and fix
prototype to match.
* symtab.c (completion_list_add_symbol): Name changed to
completion_list_add_name.
* symtab.c (COMPLETION_LIST_ADD_SYMBOL): New macro, adds both
the normal symbol name and the cached C++ demangled name.
* symtab.c (lookup_demangled_partial_symbol,
lookup_demangled_block_symbol): Remove prototypes and functions.
* symtab.c (lookup_symbol): Remove use of expensive_mangler,
use lookup_block_symbol instead of lookup_demangled_block_symbol.
Remove code to try demangling names and matching them.
* symtab.c (lookup_partial_symbol, lookup_block_symbol):
Fix to try matching the cached demangled name if no match is
found using the regular symbol name.
* symtab.c (find_methods): Remove unused physnames array.
* symtab.c (name_match, NAME_MATCH): Remove function and macro,
replaced with SYMBOL_MATCHES_REGEXP from symtab.h.
* symtab.c (completion_list_add_symbol): Rewrite to use cached
C++ demangled symbol names.
* symtab.h: Much reformatting of structures and such to add
whitespace to make them more readable, and make them more
consistent with other gdb structure definitions.
* symtab.h (general_symbol_info): New struct containing fields
common to all symbols.
* symtab.h (SYMBOL_LANGUAGE, SYMBOL_DEMANGLED_NAME,
SYMBOL_SOURCE_NAME, SYMBOL_LINKAGE_NAME, SYMBOL_MATCHES_NAME,
SYMBOL_MATCHES_REGEXP, MSYMBOL_INFO, MSYMBOL_TYPE): New macros.
* symtab. (struct minimal_symbol, struct partial_symbol, struct
symbol): Use general_symbol_info struct.
* utils.c (demangle_and_match): Remove, no longer used.
* valops.c (demangle.h): Include.
* xcoffexec.c (eq): Remove macro, replace usages with STREQ.
* blockframe.c, breakpoint.c, c-exp.y, c-valprint.c, dbxread.c,
infcmd.c, m2-exp.y, minsyms.c, objfiles.h, solib.c, stack.c,
symmisc.c, symtab.c, valops.c: Replace references to minimal
symbol fields with appropriate macros.
* breakpoint.c, buildsym.c, c-exp.y, c-typeprint.c, c-valprint.c,
coffread.c, command.c, convex-tdep.c, cp-valprint.c, dbxread.c,
demangle.c, elfread.c, energize.c, environ.c, exec.c,
gdbtypes.c, i960-tdep.c, infrun.c, infrun-hacked.c, language.c,
main.c, minsyms.c, mipsread.c, partial-stab.h, remote-es1800.c,
remote-nindy.c, remote-udi.c, rs6000-tdep.c, solib.c, source.c,
sparc-pinsn.c, stabsread.c, standalone.c, state.c, stuff.c,
symfile.c, symmisc.c, symtab.c, symtab.h, tm-sysv4.h,
tm-ultra3.h, values.c, xcoffexec.c, xcoffread.c: Replace strcmp
and strncmp usages with STREQ, STREQN, or STRCMP as appropriate.
* breakpoint.c, buildsym.c, c-typeprint.c, expprint.c, findvar.c,
mipsread.c, printcmd.c, source.c, stabsread.c, stack.c,
symmisc.c, tm-29k.h, valops.c, values.c: Replace SYMBOL_NAME
references with SYMBOL_SOURCE_NAME or SYMBOL_LINKAGE_NAME as
appropriate.
* buildsym.c (start_subfile, patch_subfile_names): Default the
source language to what can be deduced from the filename.
* buildsym.c (end_symtab): Update the source language in the
allocated symtab to match what we have been using.
* buildsym.h (struct subfile): Add a language field.
* c-typeprint.c (c_print_type): Remove code to do explicit
demangling.
* dbxread.c (psymtab_language): Add static variable.
* dbxread.c (start_psymtab): Initialize psymtab_language using
deduce_language_from_filename.
1992-12-23 06:34:57 +00:00
|
|
|
|
&& STREQ (filename, maybe->filename))
|
1992-07-04 13:59:03 +00:00
|
|
|
|
{
|
|
|
|
|
/* We found a match. But there might be several source files
|
|
|
|
|
(from different directories) with the same name. */
|
|
|
|
|
if (0 == maybe->found)
|
|
|
|
|
break;
|
|
|
|
|
questionable = maybe; /* Might use it later. */
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (maybe == 0 && questionable != 0)
|
|
|
|
|
{
|
|
|
|
|
complain (&stab_info_questionable_complaint, filename);
|
|
|
|
|
maybe = questionable;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (maybe)
|
|
|
|
|
{
|
|
|
|
|
/* Found it! Allocate a new psymtab struct, and fill it in. */
|
|
|
|
|
maybe->found++;
|
|
|
|
|
pst->section_offsets = (struct section_offsets *)
|
|
|
|
|
obstack_alloc (&objfile -> psymbol_obstack,
|
|
|
|
|
sizeof (struct section_offsets) +
|
|
|
|
|
sizeof (pst->section_offsets->offsets) * (SECT_OFF_MAX-1));
|
|
|
|
|
|
|
|
|
|
for (i = 0; i < SECT_OFF_MAX; i++)
|
|
|
|
|
ANOFFSET (pst->section_offsets, i) = maybe->sections[i];
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* We were unable to find any offsets for this file. Complain. */
|
|
|
|
|
if (dbx->stab_section_info) /* If there *is* any info, */
|
|
|
|
|
complain (&stab_info_mismatch_complaint, filename);
|
|
|
|
|
}
|
1991-10-24 11:28:54 +00:00
|
|
|
|
|
* symfile.c (reread_symbols): When re-reading symbols, do all the
right operations ourself, rather than calling symbol_file_command.
If we re-read something, call clear_symtab_users not just
breakpoint_re_set.
* objfiles.h, objfiles.c (build_objfile_section_table): No longer
static.
* symfile.c (clear_symtab_users): Call clear_pc_function_cache.
* coffread.c, dbxread.c, elfread.c, mipsread.c, nlmread.c, paread.c
(*_symfile_offsets): Set objfile->num_sections.
* remote.c (remote_wait), symfile.c (syms_from_objfile):
Don't muck with objfile->num_sections now that all the symbol
readers set it.
* elfread.c: Clean up obsolete comment about handling only DWARF.
* paread.c: Remove comment about how we should use an "ordinary"
file format with an hppa suffix. There is nothing ordinary about SOM.
1993-10-30 20:21:19 +00:00
|
|
|
|
/* Register that we are able to handle ELF object file formats. */
|
1991-10-24 11:28:54 +00:00
|
|
|
|
|
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (coff_symfile_finish): Add function, prototype, and
add to the xxxx_sym_fns struct for each file type. Also reformat
the xxxx_sym_fns vector to a standard format and add comments.
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (xxx_symfile_new_init, xxx_symfile_init, xxx_symfile_read):
Pass pointer to struct objfile rather than pointer to sym_fns.
Change references inside each function accordingly. Allocate any
symbol file specific info in the per-objfile memory region.
* dbxread.c (free_and_init_header_files): Break function into
free_header_files(), called from dbx_symfile_finish(), and
init_header_files(), called from dbx_new_init().
* dbxread.c (dbx_new_init): Move deallocation things to new
dbx_symfile_finish function.
* elfread.c (elf_new_init): Call buildsym_new_init().
* objfiles.c (free_objfile): Call the appropriate symfile_finish()
routine for the objfile before deallocating other stuff.
* sparc-tdep.c (get_longjmp_target): Cast target_read_memory arg.
* symfile.h: Move struct sym_fns to before struct objfile def.
Add sym_finish function pointer and change prototypes of other
function pointers to reflect passing struct objfile pointer rather
than struct sym_fns pointer.
* symfile.c: Remove now obsolete symtab_fns pointer.
* symfile.c (symfile_init): Renamed to find_sym_fns, and now only
locates the correct sym_fns struct for the given objfile.
* symfile.c (syms_from_objfile, symbol_file_add): Restructured
for better support of mapped symbol tables.
* symfile.c (symbol_file_command): Remove obsolete code using
symfile_fns.
* symfile.h: Remove duplicate declarations for symfile_objfile,
entry_point, and object_files.
* target.c (target_info): Compare symfile_objfile to NULL.
* xcoffread.c (aixcoff_new_init): Move deallocation stuff to
aixcoff_symfile_finish().
1992-03-19 21:57:15 +00:00
|
|
|
|
static struct sym_fns elf_sym_fns =
|
|
|
|
|
{
|
1993-10-31 18:54:28 +00:00
|
|
|
|
bfd_target_elf_flavour,
|
1991-10-24 11:28:54 +00:00
|
|
|
|
elf_new_init, /* sym_new_init: init anything gbl to entire symtab */
|
|
|
|
|
elf_symfile_init, /* sym_init: read initial info, setup for sym_read() */
|
|
|
|
|
elf_symfile_read, /* sym_read: read a symbol file into symtab */
|
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (coff_symfile_finish): Add function, prototype, and
add to the xxxx_sym_fns struct for each file type. Also reformat
the xxxx_sym_fns vector to a standard format and add comments.
* coffread.c, mipsread.c, xcoffread.c, coffread.c, dbxread.c,
elfread.c (xxx_symfile_new_init, xxx_symfile_init, xxx_symfile_read):
Pass pointer to struct objfile rather than pointer to sym_fns.
Change references inside each function accordingly. Allocate any
symbol file specific info in the per-objfile memory region.
* dbxread.c (free_and_init_header_files): Break function into
free_header_files(), called from dbx_symfile_finish(), and
init_header_files(), called from dbx_new_init().
* dbxread.c (dbx_new_init): Move deallocation things to new
dbx_symfile_finish function.
* elfread.c (elf_new_init): Call buildsym_new_init().
* objfiles.c (free_objfile): Call the appropriate symfile_finish()
routine for the objfile before deallocating other stuff.
* sparc-tdep.c (get_longjmp_target): Cast target_read_memory arg.
* symfile.h: Move struct sym_fns to before struct objfile def.
Add sym_finish function pointer and change prototypes of other
function pointers to reflect passing struct objfile pointer rather
than struct sym_fns pointer.
* symfile.c: Remove now obsolete symtab_fns pointer.
* symfile.c (symfile_init): Renamed to find_sym_fns, and now only
locates the correct sym_fns struct for the given objfile.
* symfile.c (syms_from_objfile, symbol_file_add): Restructured
for better support of mapped symbol tables.
* symfile.c (symbol_file_command): Remove obsolete code using
symfile_fns.
* symfile.h: Remove duplicate declarations for symfile_objfile,
entry_point, and object_files.
* target.c (target_info): Compare symfile_objfile to NULL.
* xcoffread.c (aixcoff_new_init): Move deallocation stuff to
aixcoff_symfile_finish().
1992-03-19 21:57:15 +00:00
|
|
|
|
elf_symfile_finish, /* sym_finish: finished with file, cleanup */
|
1992-07-04 13:59:03 +00:00
|
|
|
|
elf_symfile_offsets, /* sym_offsets: Translate ext. to int. relocation */
|
1991-10-24 11:28:54 +00:00
|
|
|
|
NULL /* next: pointer to next struct sym_fns */
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
void
|
1992-02-22 01:46:16 +00:00
|
|
|
|
_initialize_elfread ()
|
1991-10-24 11:28:54 +00:00
|
|
|
|
{
|
|
|
|
|
add_symtab_fns (&elf_sym_fns);
|
|
|
|
|
}
|