1999-04-16 03:35:26 +02:00
|
|
|
|
/* Read ELF (Executable and Linking Format) object files for GDB.
|
2003-01-13 Andrew Cagney <ac131313@redhat.com>
* ax-gdb.c, c-valprint.c, charset.c, corefile.c: Update copyright.
* demangle.c, disasm.c, dwarf2cfi.c, dwarfread.c: Update copyright.
* elfread.c, eval.c, expprint.c, expression.h: Update copyright.
* f-typeprint.c, findvar.c, gcore.c, gdb_mbuild.sh: Update copyright.
* gdbtypes.h, gnu-v2-abi.c, inferior.h, inftarg.c: Update copyright.
* language.c, language.h, m32r-tdep.c: Update copyright.
* mn10200-tdep.c, scm-lang.c, scm-lang.h: Update copyright.
* somsolib.c, somsolib.h, symfile.c, symtab.h: Update copyright.
* thread-db.c, typeprint.c, utils.c, valarith.c: Update copyright.
* values.c, win32-nat.c, x86-64-linux-nat.c: Update copyright.
* x86-64-linux-tdep.c, z8k-tdep.c: Update copyright.
* cli/cli-decode.h, config/h8500/tm-h8500.h: Update copyright.
Index: mi/ChangeLog
2003-01-13 Andrew Cagney <ac131313@redhat.com>
* mi-cmd-env.c: Update copyright.
2003-01-14 01:49:06 +01:00
|
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|
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
|
2004-02-07 Elena Zannoni <ezannoni@redhat.com>
* dbxread.c (dbx_symfile_init, start_psymtab, end_psymtab,
coffstab_build_psymtabs, elfstab_build_psymtabs)
(stabsect_build_psymtabs): Replace psymbol_obstack with
objfile_obstack.
* dwarf2-frame.c (decode_frame_entry_1): Ditto.
* dwarf2read.c (dwarf2_build_psymtabs_hard, dwarf2_read_section):
Ditto.
* dwarfread.c (scan_compilation_units): Ditto.
* elfread.c (elfstab_offset_sections): Ditto.
* hppa-tdep.c (read_unwind_info): Ditto.
* hpread.c (hpread_build_psymtabs, hpread_start_psymtab)
(hpread_end_psymtab): Ditto.
* mdebugread.c (mdebug_build_psymtabs, add_pending)
(parse_partial_symbols, new_psymtab, elfmdebug_build_psymtabs):
Ditto.
* mips-tdep.c (non_heuristic_proc_desc): Ditto.
* objfiles.c (add_to_objfile_sections)
(build_objfile_section_table): Ditto.
(allocate_objfile): Remove init of psymbol_obstack.
(free_objfile): Remove freeing of psymbol_obstack.
* objfiles.h (struct objfile): Remove field
psymbol_obstack. Update comments.
* pa64solib.c (pa64_solib_add_solib_objfile): Replace
psymbol_obstack with objfile_obstack.
* solib-sunos.c (allocate_rt_common_objfile): Remove init of
psymbol_obstack.
* somread.c (som_symfile_offsets, init_import_symbols)
(init_export_symbols): Replace psymbol_obstack with
objfile_obstack.
* somsolib.c (som_solib_add_solib_objfile): Ditto.
* symfile.c (default_symfile_offsets, syms_from_objfile)
(reread_symbols): Remove freeing and init of psymbol_obstack.
(cashier_psymtab): Update comment.
* symmisc.c (print_objfile_statistics): Don't report stats for
psymbol obstack.
* symtab.h (struct general_symbol_info, struct partial_symtab):
Update comments.
* xcoffread.c (xcoff_start_psymtab, xcoff_end_psymtab, swap_sym)
(xcoff_symfile_offsets): Replace psymbol_obstack with
objfile_obstack.
2004-02-07 19:29:54 +01:00
|
|
|
|
2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
|
2003-01-13 Andrew Cagney <ac131313@redhat.com>
* ax-gdb.c, c-valprint.c, charset.c, corefile.c: Update copyright.
* demangle.c, disasm.c, dwarf2cfi.c, dwarfread.c: Update copyright.
* elfread.c, eval.c, expprint.c, expression.h: Update copyright.
* f-typeprint.c, findvar.c, gcore.c, gdb_mbuild.sh: Update copyright.
* gdbtypes.h, gnu-v2-abi.c, inferior.h, inftarg.c: Update copyright.
* language.c, language.h, m32r-tdep.c: Update copyright.
* mn10200-tdep.c, scm-lang.c, scm-lang.h: Update copyright.
* somsolib.c, somsolib.h, symfile.c, symtab.h: Update copyright.
* thread-db.c, typeprint.c, utils.c, valarith.c: Update copyright.
* values.c, win32-nat.c, x86-64-linux-nat.c: Update copyright.
* x86-64-linux-tdep.c, z8k-tdep.c: Update copyright.
* cli/cli-decode.h, config/h8500/tm-h8500.h: Update copyright.
Index: mi/ChangeLog
2003-01-13 Andrew Cagney <ac131313@redhat.com>
* mi-cmd-env.c: Update copyright.
2003-01-14 01:49:06 +01:00
|
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|
1999-04-16 03:35:26 +02:00
|
|
|
|
Written by Fred Fish at Cygnus Support.
|
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
This file is part of GDB.
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
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|
This program is free software; you can redistribute it and/or modify
|
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it under the terms of the GNU General Public License as published by
|
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|
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
|
|
|
(at your option) any later version.
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
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.
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
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., 59 Temple Place - Suite 330,
|
|
|
|
|
Boston, MA 02111-1307, USA. */
|
1999-04-16 03:35:26 +02:00
|
|
|
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|
|
|
|
#include "defs.h"
|
|
|
|
|
#include "bfd.h"
|
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|
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|
#include "gdb_string.h"
|
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|
|
|
#include "elf-bfd.h"
|
|
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|
#include "elf/mips.h"
|
|
|
|
|
#include "symtab.h"
|
|
|
|
|
#include "symfile.h"
|
|
|
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|
#include "objfiles.h"
|
|
|
|
|
#include "buildsym.h"
|
|
|
|
|
#include "stabsread.h"
|
|
|
|
|
#include "gdb-stabs.h"
|
|
|
|
|
#include "complaints.h"
|
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|
|
|
#include "demangle.h"
|
|
|
|
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|
2000-05-28 03:12:42 +02:00
|
|
|
|
extern void _initialize_elfread (void);
|
1999-05-25 20:09:09 +02:00
|
|
|
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|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* The struct elfinfo is available only during ELF symbol table and
|
1999-09-28 23:55:21 +02:00
|
|
|
|
psymtab reading. It is destroyed at the completion of psymtab-reading.
|
1999-04-16 03:35:26 +02:00
|
|
|
|
It's local to elf_symfile_read. */
|
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
struct elfinfo
|
|
|
|
|
{
|
|
|
|
|
file_ptr dboffset; /* Offset to dwarf debug section */
|
|
|
|
|
unsigned int dbsize; /* Size of dwarf debug section */
|
|
|
|
|
file_ptr lnoffset; /* Offset to dwarf line number section */
|
|
|
|
|
unsigned int lnsize; /* Size of dwarf line number section */
|
|
|
|
|
asection *stabsect; /* Section pointer for .stab section */
|
|
|
|
|
asection *stabindexsect; /* Section pointer for .stab.index section */
|
|
|
|
|
asection *mdebugsect; /* Section pointer for .mdebug section */
|
|
|
|
|
};
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2002-03-19 20:00:04 +01:00
|
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|
static void free_elfinfo (void *);
|
1999-04-16 03:35:26 +02:00
|
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|
|
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|
|
/* We are called once per section from elf_symfile_read. We
|
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|
|
need to examine each section we are passed, check to see
|
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|
if it is something we are interested in processing, and
|
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|
if so, stash away some access information for the section.
|
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|
|
|
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|
For now we recognize the dwarf debug information sections and
|
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|
line number sections from matching their section names. The
|
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|
|
ELF definition is no real help here since it has no direct
|
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|
knowledge of DWARF (by design, so any debugging format can be
|
|
|
|
|
used).
|
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|
|
|
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|
|
|
|
We also recognize the ".stab" sections used by the Sun compilers
|
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|
released with Solaris 2.
|
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|
|
|
|
|
FIXME: The section names should not be hardwired strings (what
|
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|
should they be? I don't think most object file formats have enough
|
|
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|
section flags to specify what kind of debug section it is
|
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|
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|
-kingdon). */
|
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|
static void
|
2002-03-19 20:00:04 +01:00
|
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|
|
elf_locate_sections (bfd *ignore_abfd, asection *sectp, void *eip)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2003-09-14 Andrew Cagney <cagney@redhat.com>
* alpha-nat.c: Remove some occurances of "register".
* alpha-tdep.c, arm-tdep.c, blockframe.c, breakpoint.c: Ditto.
* buildsym.c, c-typeprint.c, c-valprint.c, coffread.c: Ditto.
* corefile.c, cp-support.c, cp-valprint.c, cris-tdep.c: Ditto.
* dbxread.c, dcache.c, dwarf2read.c, elfread.c: Ditto.
* environ.c, eval.c, event-top.c, f-typeprint.c: Ditto.
* f-valprint.c, findvar.c, frame.c, gdbtypes.c: Ditto.
* h8300-tdep.c, hppa-tdep.c, hppab-nat.c, hppah-nat.c: Ditto.
* hppam3-nat.c, hpread.c, ia64-aix-nat.c, ia64-linux-nat.c: Ditto.
* infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Ditto.
* infttrace.c, irix5-nat.c, jv-typeprint.c: Ditto.
* jv-valprint.c, m68k-tdep.c, m68klinux-nat.c, main.c: Ditto.
* mdebugread.c, minsyms.c, mips-linux-tdep.c: Ditto.
* mips-nat.c, mips-tdep.c, mipsread.c, mipsv4-nat.c: Ditto.
* ns32k-tdep.c, objfiles.c, p-typeprint.c: Ditto.
* p-valprint.c, ppc-linux-nat.c, printcmd.c: Ditto.
* remote-mips.c, remote-vx.c, rs6000-nat.c: Ditto.
* rs6000-tdep.c, scm-exp.c, sh-tdep.c, sh64-tdep.c: Ditto.
* solib.c, somread.c, source.c, sparc-tdep.c: Ditto.
* stabsread.c, stack.c, standalone.c, symfile.c: Ditto.
* symmisc.c, symtab.c, top.c, tracepoint.c: Ditto.
* typeprint.c, utils.c, valarith.c, valops.c: Ditto.
* values.c, vax-tdep.c, xcoffread.c: Ditto.
2003-09-14 18:32:14 +02:00
|
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|
|
struct elfinfo *ei;
|
1999-04-16 03:35:26 +02:00
|
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|
ei = (struct elfinfo *) eip;
|
2003-11-08 01:13:03 +01:00
|
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if (strcmp (sectp->name, ".debug") == 0)
|
1999-04-16 03:35:26 +02:00
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{
|
1999-07-07 22:19:36 +02:00
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ei->dboffset = sectp->filepos;
|
2004-06-15 03:04:20 +02:00
|
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ei->dbsize = bfd_get_section_size (sectp);
|
1999-04-16 03:35:26 +02:00
|
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}
|
2003-11-08 01:13:03 +01:00
|
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else if (strcmp (sectp->name, ".line") == 0)
|
1999-04-16 03:35:26 +02:00
|
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|
{
|
1999-07-07 22:19:36 +02:00
|
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ei->lnoffset = sectp->filepos;
|
2004-06-15 03:04:20 +02:00
|
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|
ei->lnsize = bfd_get_section_size (sectp);
|
1999-04-16 03:35:26 +02:00
|
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}
|
2003-11-08 01:13:03 +01:00
|
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else if (strcmp (sectp->name, ".stab") == 0)
|
1999-04-16 03:35:26 +02:00
|
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{
|
1999-07-07 22:19:36 +02:00
|
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|
ei->stabsect = sectp;
|
1999-04-16 03:35:26 +02:00
|
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}
|
2003-11-08 01:13:03 +01:00
|
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else if (strcmp (sectp->name, ".stab.index") == 0)
|
1999-04-16 03:35:26 +02:00
|
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{
|
1999-07-07 22:19:36 +02:00
|
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|
ei->stabindexsect = sectp;
|
1999-04-16 03:35:26 +02:00
|
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|
|
}
|
2003-11-08 01:13:03 +01:00
|
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|
|
else if (strcmp (sectp->name, ".mdebug") == 0)
|
1999-04-16 03:35:26 +02:00
|
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{
|
1999-07-07 22:19:36 +02:00
|
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|
ei->mdebugsect = sectp;
|
1999-04-16 03:35:26 +02:00
|
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|
|
}
|
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}
|
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|
static struct minimal_symbol *
|
2003-11-11 21:04:52 +01:00
|
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record_minimal_symbol (char *name, CORE_ADDR address,
|
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|
|
enum minimal_symbol_type ms_type,
|
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|
asection *bfd_section, struct objfile *objfile)
|
1999-04-16 03:35:26 +02:00
|
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|
|
{
|
2000-12-04 16:55:09 +01:00
|
|
|
|
if (ms_type == mst_text || ms_type == mst_file_text)
|
2002-02-04 12:55:36 +01:00
|
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|
|
address = SMASH_TEXT_ADDRESS (address);
|
1999-04-16 03:35:26 +02:00
|
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|
|
return prim_record_minimal_symbol_and_info
|
2003-11-11 21:04:52 +01:00
|
|
|
|
(name, address, ms_type, NULL, bfd_section->index, bfd_section, objfile);
|
1999-04-16 03:35:26 +02:00
|
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}
|
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|
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/*
|
|
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|
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|
1999-07-07 22:19:36 +02:00
|
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|
|
LOCAL FUNCTION
|
1999-04-16 03:35:26 +02:00
|
|
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|
1999-07-07 22:19:36 +02:00
|
|
|
|
elf_symtab_read -- read the symbol table of an ELF file
|
1999-04-16 03:35:26 +02:00
|
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|
1999-07-07 22:19:36 +02:00
|
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|
SYNOPSIS
|
1999-04-16 03:35:26 +02:00
|
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|
|
1999-09-09 02:02:17 +02:00
|
|
|
|
void elf_symtab_read (struct objfile *objfile, int dynamic)
|
1999-04-16 03:35:26 +02:00
|
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|
1999-07-07 22:19:36 +02:00
|
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|
DESCRIPTION
|
1999-04-16 03:35:26 +02:00
|
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|
|
1999-09-09 02:02:17 +02:00
|
|
|
|
Given an objfile and a flag that specifies whether or not the objfile
|
|
|
|
|
is for an executable or not (may be shared library for example), add
|
|
|
|
|
all the global function and data symbols to the minimal symbol table.
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
1999-07-07 22:19:36 +02:00
|
|
|
|
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
|
|
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|
|
in data structures hung off the objfile's private data.
|
1999-04-16 03:35:26 +02:00
|
|
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|
1999-07-07 22:19:36 +02:00
|
|
|
|
*/
|
1999-04-16 03:35:26 +02:00
|
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|
|
static void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
elf_symtab_read (struct objfile *objfile, int dynamic)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
long storage_needed;
|
|
|
|
|
asymbol *sym;
|
|
|
|
|
asymbol **symbol_table;
|
|
|
|
|
long number_of_symbols;
|
|
|
|
|
long i;
|
|
|
|
|
struct cleanup *back_to;
|
|
|
|
|
CORE_ADDR symaddr;
|
1999-09-09 02:02:17 +02:00
|
|
|
|
CORE_ADDR offset;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
enum minimal_symbol_type ms_type;
|
|
|
|
|
/* If sectinfo is nonNULL, it contains section info that should end up
|
|
|
|
|
filed in the objfile. */
|
|
|
|
|
struct stab_section_info *sectinfo = NULL;
|
|
|
|
|
/* If filesym is nonzero, it points to a file symbol, but we haven't
|
|
|
|
|
seen any section info for it yet. */
|
|
|
|
|
asymbol *filesym = 0;
|
|
|
|
|
#ifdef SOFUN_ADDRESS_MAYBE_MISSING
|
2004-02-07 Elena Zannoni <ezannoni@redhat.com>
* buildsym.c (free_pending_blocks, finish_block)
(record_pending_block, make_blockvector, end_symtab): Replace
symbol_obstack with objfile_obstack.
* coffread.c (process_coff_symbol, coff_read_struct_type)
(coff_read_enum_type): Ditto.
* cp-namespace.c (initialize_namespace_symtab)
(check_one_possible_namespace_symbol): Ditto.
* dwarf2read.c (new_symbol, dwarf2_const_value, macro_start_file)
(dwarf2_symbol_mark_computed): Ditto.
* dwarfread.c (enum_type, new_symbol, synthesize_typedef): Ditto.
* elfread.c (elf_symtab_read): Ditto.
* hpread.c (hpread_symfile_init, hpread_symfile_init)
(hpread_read_enum_type, hpread_read_function_type)
(hpread_read_doc_function_type, hpread_process_one_debug_symbol):
Ditto.
* jv-lang.c (get_java_class_symtab, add_class_symbol)
(java_link_class_type): Ditto.
* mdebugread.c (parse_symbol, psymtab_to_symtab_1, new_symtab)
(new_symbol): Ditto.
* minsyms.c (install_minimal_symbols): Ditto.
* objfiles.c (allocate_objfile): Remove init of symbol_obstack.
(terminate_minimal_symbol_table): Replace symbol_obstack with
objfile_obstack.
(free_objfile): Remove freeing of symbol_obstack.
* objfiles.h: Remove symbol_obstack field.
* pa64solib.c (add_to_solist): Replace symbol_obstack with
objfile_obstack.
* solib-sunos.c (allocate_rt_common_objfile): Remove init of
symbol_obstack.
(solib_add_common_symbols): Replace symbol_obstack with
objfile_obstack.
* somsolib.c (som_solib_add): Ditto.
* stabsread.c (patch_block_stabs, define_symbol, read_enum_type)
(common_block_start, common_block_end): Ditto.
* symfile.c (reread_symbols): Remove freeing and init of
symbol_obstack.
(allocate_symtab): Rename symbol_obstack to objfile_obstack.
* symfile.h: Update comment.
* symmisc.c (print_objfile_statistics): Remove symbol_obstack
stats printing.
* symtab.c (symbol_set_names): Replace symbol_obstack with
objfile_obstack.
* symtab.h (struct general_symbol_info, struct minimal_symbol):
Update comments.
* xcoffread.c (read_xcoff_symtab, SYMBOL_DUP, SYMNAME_ALLOC)
(init_stringtab, xcoff_initial_scan): Replace symbol_obstack with
objfile_obstack.
2004-02-08 00:13:47 +01:00
|
|
|
|
/* Name of filesym, as saved on the objfile_obstack. */
|
|
|
|
|
char *filesymname = obsavestring ("", 0, &objfile->objfile_obstack);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
#endif
|
|
|
|
|
struct dbx_symfile_info *dbx = objfile->sym_stab_info;
|
1999-09-09 02:02:17 +02:00
|
|
|
|
int stripped = (bfd_get_symcount (objfile->obfd) == 0);
|
1999-07-07 22:19:36 +02:00
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (dynamic)
|
|
|
|
|
{
|
1999-09-09 02:02:17 +02:00
|
|
|
|
storage_needed = bfd_get_dynamic_symtab_upper_bound (objfile->obfd);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
/* Nothing to be done if there is no dynamic symtab. */
|
|
|
|
|
if (storage_needed < 0)
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
1999-09-09 02:02:17 +02:00
|
|
|
|
storage_needed = bfd_get_symtab_upper_bound (objfile->obfd);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (storage_needed < 0)
|
1999-09-09 02:02:17 +02:00
|
|
|
|
error ("Can't read symbols from %s: %s", bfd_get_filename (objfile->obfd),
|
1999-04-16 03:35:26 +02:00
|
|
|
|
bfd_errmsg (bfd_get_error ()));
|
|
|
|
|
}
|
|
|
|
|
if (storage_needed > 0)
|
|
|
|
|
{
|
|
|
|
|
symbol_table = (asymbol **) xmalloc (storage_needed);
|
2000-12-15 02:01:51 +01:00
|
|
|
|
back_to = make_cleanup (xfree, symbol_table);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (dynamic)
|
1999-09-09 02:02:17 +02:00
|
|
|
|
number_of_symbols = bfd_canonicalize_dynamic_symtab (objfile->obfd,
|
1999-04-16 03:35:26 +02:00
|
|
|
|
symbol_table);
|
|
|
|
|
else
|
1999-09-09 02:02:17 +02:00
|
|
|
|
number_of_symbols = bfd_canonicalize_symtab (objfile->obfd, symbol_table);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (number_of_symbols < 0)
|
1999-09-09 02:02:17 +02:00
|
|
|
|
error ("Can't read symbols from %s: %s", bfd_get_filename (objfile->obfd),
|
1999-04-16 03:35:26 +02:00
|
|
|
|
bfd_errmsg (bfd_get_error ()));
|
2000-05-05 21:09:27 +02:00
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
for (i = 0; i < number_of_symbols; i++)
|
|
|
|
|
{
|
|
|
|
|
sym = symbol_table[i];
|
1999-07-07 22:19:36 +02:00
|
|
|
|
if (sym->name == NULL || *sym->name == '\0')
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
/* Skip names that don't exist (shouldn't happen), or names
|
1999-07-07 22:19:36 +02:00
|
|
|
|
that are null strings (may happen). */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
2000-05-05 21:09:27 +02:00
|
|
|
|
offset = ANOFFSET (objfile->section_offsets, sym->section->index);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (dynamic
|
1999-07-07 22:19:36 +02:00
|
|
|
|
&& sym->section == &bfd_und_section
|
|
|
|
|
&& (sym->flags & BSF_FUNCTION))
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
struct minimal_symbol *msym;
|
|
|
|
|
|
|
|
|
|
/* Symbol is a reference to a function defined in
|
1999-07-07 22:19:36 +02:00
|
|
|
|
a shared library.
|
|
|
|
|
If its value is non zero then it is usually the address
|
|
|
|
|
of the corresponding entry in the procedure linkage table,
|
1999-09-09 02:02:17 +02:00
|
|
|
|
plus the desired section offset.
|
1999-07-07 22:19:36 +02:00
|
|
|
|
If its value is zero then the dynamic linker has to resolve
|
|
|
|
|
the symbol. We are unable to find any meaningful address
|
|
|
|
|
for this symbol in the executable file, so we skip it. */
|
|
|
|
|
symaddr = sym->value;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (symaddr == 0)
|
|
|
|
|
continue;
|
1999-09-09 02:02:17 +02:00
|
|
|
|
symaddr += offset;
|
2003-11-11 21:04:52 +01:00
|
|
|
|
msym = record_minimal_symbol
|
1999-07-07 22:19:36 +02:00
|
|
|
|
((char *) sym->name, symaddr,
|
2003-11-11 21:04:52 +01:00
|
|
|
|
mst_solib_trampoline, sym->section, objfile);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
#ifdef SOFUN_ADDRESS_MAYBE_MISSING
|
|
|
|
|
if (msym != NULL)
|
|
|
|
|
msym->filename = filesymname;
|
|
|
|
|
#endif
|
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If it is a nonstripped executable, do not enter dynamic
|
|
|
|
|
symbols, as the dynamic symbol table is usually a subset
|
|
|
|
|
of the main symbol table. */
|
|
|
|
|
if (dynamic && !stripped)
|
|
|
|
|
continue;
|
1999-07-07 22:19:36 +02:00
|
|
|
|
if (sym->flags & BSF_FILE)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
/* STT_FILE debugging symbol that helps stabs-in-elf debugging.
|
1999-07-07 22:19:36 +02:00
|
|
|
|
Chain any old one onto the objfile; remember new sym. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (sectinfo != NULL)
|
|
|
|
|
{
|
1999-07-07 22:19:36 +02:00
|
|
|
|
sectinfo->next = dbx->stab_section_info;
|
|
|
|
|
dbx->stab_section_info = sectinfo;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
sectinfo = NULL;
|
|
|
|
|
}
|
|
|
|
|
filesym = sym;
|
|
|
|
|
#ifdef SOFUN_ADDRESS_MAYBE_MISSING
|
|
|
|
|
filesymname =
|
1999-07-07 22:19:36 +02:00
|
|
|
|
obsavestring ((char *) filesym->name, strlen (filesym->name),
|
2004-02-07 Elena Zannoni <ezannoni@redhat.com>
* buildsym.c (free_pending_blocks, finish_block)
(record_pending_block, make_blockvector, end_symtab): Replace
symbol_obstack with objfile_obstack.
* coffread.c (process_coff_symbol, coff_read_struct_type)
(coff_read_enum_type): Ditto.
* cp-namespace.c (initialize_namespace_symtab)
(check_one_possible_namespace_symbol): Ditto.
* dwarf2read.c (new_symbol, dwarf2_const_value, macro_start_file)
(dwarf2_symbol_mark_computed): Ditto.
* dwarfread.c (enum_type, new_symbol, synthesize_typedef): Ditto.
* elfread.c (elf_symtab_read): Ditto.
* hpread.c (hpread_symfile_init, hpread_symfile_init)
(hpread_read_enum_type, hpread_read_function_type)
(hpread_read_doc_function_type, hpread_process_one_debug_symbol):
Ditto.
* jv-lang.c (get_java_class_symtab, add_class_symbol)
(java_link_class_type): Ditto.
* mdebugread.c (parse_symbol, psymtab_to_symtab_1, new_symtab)
(new_symbol): Ditto.
* minsyms.c (install_minimal_symbols): Ditto.
* objfiles.c (allocate_objfile): Remove init of symbol_obstack.
(terminate_minimal_symbol_table): Replace symbol_obstack with
objfile_obstack.
(free_objfile): Remove freeing of symbol_obstack.
* objfiles.h: Remove symbol_obstack field.
* pa64solib.c (add_to_solist): Replace symbol_obstack with
objfile_obstack.
* solib-sunos.c (allocate_rt_common_objfile): Remove init of
symbol_obstack.
(solib_add_common_symbols): Replace symbol_obstack with
objfile_obstack.
* somsolib.c (som_solib_add): Ditto.
* stabsread.c (patch_block_stabs, define_symbol, read_enum_type)
(common_block_start, common_block_end): Ditto.
* symfile.c (reread_symbols): Remove freeing and init of
symbol_obstack.
(allocate_symtab): Rename symbol_obstack to objfile_obstack.
* symfile.h: Update comment.
* symmisc.c (print_objfile_statistics): Remove symbol_obstack
stats printing.
* symtab.c (symbol_set_names): Replace symbol_obstack with
objfile_obstack.
* symtab.h (struct general_symbol_info, struct minimal_symbol):
Update comments.
* xcoffread.c (read_xcoff_symtab, SYMBOL_DUP, SYMNAME_ALLOC)
(init_stringtab, xcoff_initial_scan): Replace symbol_obstack with
objfile_obstack.
2004-02-08 00:13:47 +01:00
|
|
|
|
&objfile->objfile_obstack);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
#endif
|
|
|
|
|
}
|
1999-07-07 22:19:36 +02:00
|
|
|
|
else if (sym->flags & (BSF_GLOBAL | BSF_LOCAL | BSF_WEAK))
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
struct minimal_symbol *msym;
|
|
|
|
|
|
|
|
|
|
/* Select global/local/weak symbols. Note that bfd puts abs
|
1999-07-07 22:19:36 +02:00
|
|
|
|
symbols in their own section, so all symbols we are
|
|
|
|
|
interested in will have a section. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* Bfd symbols are section relative. */
|
1999-07-07 22:19:36 +02:00
|
|
|
|
symaddr = sym->value + sym->section->vma;
|
1999-09-09 02:02:17 +02:00
|
|
|
|
/* Relocate all non-absolute symbols by the section offset. */
|
1999-07-07 22:19:36 +02:00
|
|
|
|
if (sym->section != &bfd_abs_section)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
1999-09-09 02:02:17 +02:00
|
|
|
|
symaddr += offset;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
/* For non-absolute symbols, use the type of the section
|
1999-07-07 22:19:36 +02:00
|
|
|
|
they are relative to, to intuit text/data. Bfd provides
|
|
|
|
|
no way of figuring this out for absolute symbols. */
|
|
|
|
|
if (sym->section == &bfd_abs_section)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
/* This is a hack to get the minimal symbol type
|
1999-11-09 02:23:30 +01:00
|
|
|
|
right for Irix 5, which has absolute addresses
|
1999-04-16 03:35:26 +02:00
|
|
|
|
with special section indices for dynamic symbols. */
|
|
|
|
|
unsigned short shndx =
|
1999-07-07 22:19:36 +02:00
|
|
|
|
((elf_symbol_type *) sym)->internal_elf_sym.st_shndx;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
switch (shndx)
|
|
|
|
|
{
|
|
|
|
|
case SHN_MIPS_TEXT:
|
|
|
|
|
ms_type = mst_text;
|
|
|
|
|
break;
|
|
|
|
|
case SHN_MIPS_DATA:
|
|
|
|
|
ms_type = mst_data;
|
|
|
|
|
break;
|
|
|
|
|
case SHN_MIPS_ACOMMON:
|
|
|
|
|
ms_type = mst_bss;
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
ms_type = mst_abs;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* If it is an Irix dynamic symbol, skip section name
|
1999-09-09 02:02:17 +02:00
|
|
|
|
symbols, relocate all others by section offset. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (ms_type != mst_abs)
|
|
|
|
|
{
|
|
|
|
|
if (sym->name[0] == '.')
|
|
|
|
|
continue;
|
1999-09-09 02:02:17 +02:00
|
|
|
|
symaddr += offset;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
1999-07-07 22:19:36 +02:00
|
|
|
|
else if (sym->section->flags & SEC_CODE)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2002-09-19 05:58:41 +02:00
|
|
|
|
if (sym->flags & BSF_GLOBAL)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
ms_type = mst_text;
|
|
|
|
|
}
|
|
|
|
|
else if ((sym->name[0] == '.' && sym->name[1] == 'L')
|
1999-07-07 22:19:36 +02:00
|
|
|
|
|| ((sym->flags & BSF_LOCAL)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
&& sym->name[0] == '$'
|
|
|
|
|
&& sym->name[1] == 'L'))
|
2002-07-25 01:51:36 +02:00
|
|
|
|
/* Looks like a compiler-generated label. Skip
|
|
|
|
|
it. The assembler should be skipping these (to
|
|
|
|
|
keep executables small), but apparently with
|
2003-01-02 Andrew Cagney <ac131313@redhat.com>
* valarith.c (value_binop): Delete obsolete code and comments.
* configure.host: Ditto.
* buildsym.h (make_blockvector): Ditto.
* buildsym.c (make_blockvector): Ditto.
* defs.h (enum language): Ditto.
(chill_demangle): Ditto.
* elfread.c (elf_symtab_read): Ditto.
* dwarfread.c (CHILL_PRODUCER): Ditto.
(set_cu_language): Ditto.
(handle_producer): Ditto.
* expprint.c (print_subexp): Ditto.
* gdbtypes.c (chill_varying_type): Ditto.
* gdbtypes.h (builtin_type_chill_bool): Ditto.
(builtin_type_chill_char, builtin_type_chill_long): Ditto.
(builtin_type_chill_ulong, builtin_type_chill_real): Ditto.
(chill_varying_type): Ditto.
* language.h (_LANG_chill): Ditto.
* language.c (binop_result_type, integral_type): Ditto.
(character_type, string_type, structured_type): Ditto.
(lang_bool_type, binop_type_check): Ditto.
* stabsread.h (os9k_stabs): Ditto.
* stabsread.c (os9k_type_vector, dbx_lookup_type): Ditto.
(define_symbol, read_type, read_struct_fields): Ditto.
(read_array_type, read_enum_type, read_huge_number): Ditto.
(read_range_type, start_stabs): Ditto.
* symfile.c (init_filename_language_table): Ditto.
(add_psymbol_with_dem_name_to_list): Ditto.
* symtab.c (symbol_init_language_specific): Ditto.
(symbol_init_demangled_name, symbol_demangled_name): Ditto.
* symtab.h (struct general_symbol_info): Ditto.
(SYMBOL_CHILL_DEMANGLED_NAME): Ditto.
* typeprint.c (typedef_print): Ditto.
* utils.c (fprintf_symbol_filtered): Ditto.
* valops.c (value_cast, search_struct_field, value_slice): Delete
obsolete code.
(varying_to_slice): Delete function.
* value.h (COERCE_VARYING_ARRAY): Delete obsolete macro contents.
(varying_to_slice): Delete declaration.
* MAINTAINERS: Update.
2003-01-02 15:27:27 +01:00
|
|
|
|
gcc on the (deleted) 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). */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
continue;
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
ms_type = mst_file_text;
|
|
|
|
|
}
|
|
|
|
|
}
|
1999-07-07 22:19:36 +02:00
|
|
|
|
else if (sym->section->flags & SEC_ALLOC)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2000-12-04 16:55:09 +01:00
|
|
|
|
if (sym->flags & (BSF_GLOBAL | BSF_WEAK))
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
1999-07-07 22:19:36 +02:00
|
|
|
|
if (sym->section->flags & SEC_LOAD)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
ms_type = mst_data;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
ms_type = mst_bss;
|
|
|
|
|
}
|
|
|
|
|
}
|
1999-07-07 22:19:36 +02:00
|
|
|
|
else if (sym->flags & BSF_LOCAL)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2003-06-07 17:51:05 +02:00
|
|
|
|
/* Named Local variable in a Data section.
|
2003-11-23 20:24:05 +01:00
|
|
|
|
Check its name for stabs-in-elf. */
|
2003-06-07 17:51:05 +02:00
|
|
|
|
int special_local_sect;
|
|
|
|
|
if (strcmp ("Bbss.bss", sym->name) == 0)
|
|
|
|
|
special_local_sect = SECT_OFF_BSS (objfile);
|
|
|
|
|
else if (strcmp ("Ddata.data", sym->name) == 0)
|
|
|
|
|
special_local_sect = SECT_OFF_DATA (objfile);
|
|
|
|
|
else if (strcmp ("Drodata.rodata", sym->name) == 0)
|
|
|
|
|
special_local_sect = SECT_OFF_RODATA (objfile);
|
|
|
|
|
else
|
|
|
|
|
special_local_sect = -1;
|
|
|
|
|
if (special_local_sect >= 0)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
/* Found a special local symbol. Allocate a
|
|
|
|
|
sectinfo, if needed, and fill it in. */
|
|
|
|
|
if (sectinfo == NULL)
|
|
|
|
|
{
|
2003-06-07 01:33:00 +02:00
|
|
|
|
int max_index;
|
|
|
|
|
size_t size;
|
|
|
|
|
|
|
|
|
|
max_index
|
|
|
|
|
= max (SECT_OFF_BSS (objfile),
|
|
|
|
|
max (SECT_OFF_DATA (objfile),
|
|
|
|
|
SECT_OFF_RODATA (objfile)));
|
2003-10-31 23:47:48 +01:00
|
|
|
|
|
|
|
|
|
/* max_index is the largest index we'll
|
|
|
|
|
use into this array, so we must
|
|
|
|
|
allocate max_index+1 elements for it.
|
|
|
|
|
However, 'struct stab_section_info'
|
|
|
|
|
already includes one element, so we
|
|
|
|
|
need to allocate max_index aadditional
|
|
|
|
|
elements. */
|
2003-06-07 01:33:00 +02:00
|
|
|
|
size = (sizeof (struct stab_section_info)
|
|
|
|
|
+ (sizeof (CORE_ADDR)
|
2003-10-31 23:47:48 +01:00
|
|
|
|
* max_index));
|
1999-04-16 03:35:26 +02:00
|
|
|
|
sectinfo = (struct stab_section_info *)
|
2003-06-07 01:33:00 +02:00
|
|
|
|
xmmalloc (objfile->md, size);
|
|
|
|
|
memset (sectinfo, 0, size);
|
|
|
|
|
sectinfo->num_sections = max_index;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
if (filesym == NULL)
|
|
|
|
|
{
|
2002-12-17 01:39:08 +01:00
|
|
|
|
complaint (&symfile_complaints,
|
|
|
|
|
"elf/stab section information %s without a preceding file symbol",
|
|
|
|
|
sym->name);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
1999-07-07 22:19:36 +02:00
|
|
|
|
sectinfo->filename =
|
|
|
|
|
(char *) filesym->name;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
2003-06-07 17:51:05 +02:00
|
|
|
|
if (sectinfo->sections[special_local_sect] != 0)
|
|
|
|
|
complaint (&symfile_complaints,
|
|
|
|
|
"duplicated elf/stab section information for %s",
|
|
|
|
|
sectinfo->filename);
|
|
|
|
|
/* BFD symbols are section relative. */
|
1999-07-07 22:19:36 +02:00
|
|
|
|
symaddr = sym->value + sym->section->vma;
|
2003-06-07 17:51:05 +02:00
|
|
|
|
/* Relocate non-absolute symbols by the
|
|
|
|
|
section offset. */
|
1999-07-07 22:19:36 +02:00
|
|
|
|
if (sym->section != &bfd_abs_section)
|
2003-06-07 17:51:05 +02:00
|
|
|
|
symaddr += offset;
|
|
|
|
|
sectinfo->sections[special_local_sect] = symaddr;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* The special local symbols don't go in the
|
2003-06-07 17:51:05 +02:00
|
|
|
|
minimal symbol table, so ignore this one. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
continue;
|
|
|
|
|
}
|
|
|
|
|
/* Not a special stabs-in-elf symbol, do regular
|
2003-06-07 17:51:05 +02:00
|
|
|
|
symbol processing. */
|
1999-07-07 22:19:36 +02:00
|
|
|
|
if (sym->section->flags & SEC_LOAD)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
ms_type = mst_file_data;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
ms_type = mst_file_bss;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
ms_type = mst_unknown;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
/* FIXME: Solaris2 shared libraries include lots of
|
|
|
|
|
odd "absolute" and "undefined" symbols, that play
|
|
|
|
|
hob with actions like finding what function the PC
|
|
|
|
|
is in. Ignore them if they aren't text, data, or bss. */
|
|
|
|
|
/* ms_type = mst_unknown; */
|
1999-07-07 22:19:36 +02:00
|
|
|
|
continue; /* Skip this symbol. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
2003-11-11 21:04:52 +01:00
|
|
|
|
msym = record_minimal_symbol
|
1999-07-07 22:19:36 +02:00
|
|
|
|
((char *) sym->name, symaddr,
|
2003-11-11 21:04:52 +01:00
|
|
|
|
ms_type, sym->section, objfile);
|
|
|
|
|
if (msym)
|
|
|
|
|
{
|
|
|
|
|
/* Pass symbol size field in via BFD. FIXME!!! */
|
|
|
|
|
unsigned long size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size;
|
|
|
|
|
MSYMBOL_SIZE(msym) = size;
|
|
|
|
|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
|
#ifdef SOFUN_ADDRESS_MAYBE_MISSING
|
|
|
|
|
if (msym != NULL)
|
|
|
|
|
msym->filename = filesymname;
|
|
|
|
|
#endif
|
1999-07-07 22:19:36 +02:00
|
|
|
|
ELF_MAKE_MSYMBOL_SPECIAL (sym, msym);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
do_cleanups (back_to);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Scan and build partial symbols for a symbol file.
|
|
|
|
|
We have been initialized by a call to elf_symfile_init, which
|
|
|
|
|
currently does nothing.
|
|
|
|
|
|
|
|
|
|
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.
|
|
|
|
|
|
|
|
|
|
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
|
|
|
|
|
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;
|
|
|
|
|
elfstab_build_psymtabs() handles STABS symbols;
|
|
|
|
|
mdebug_build_psymtabs() handles ECOFF debugging information.
|
|
|
|
|
|
|
|
|
|
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
|
|
|
|
|
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. */
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
elf_symfile_read (struct objfile *objfile, int mainline)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
bfd *abfd = objfile->obfd;
|
|
|
|
|
struct elfinfo ei;
|
|
|
|
|
struct cleanup *back_to;
|
|
|
|
|
CORE_ADDR offset;
|
|
|
|
|
|
|
|
|
|
init_minimal_symbol_collection ();
|
2000-05-16 06:07:39 +02:00
|
|
|
|
back_to = make_cleanup_discard_minimal_symbols ();
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
memset ((char *) &ei, 0, sizeof (ei));
|
|
|
|
|
|
|
|
|
|
/* Allocate struct to keep track of the symfile */
|
|
|
|
|
objfile->sym_stab_info = (struct dbx_symfile_info *)
|
1999-07-07 22:19:36 +02:00
|
|
|
|
xmmalloc (objfile->md, sizeof (struct dbx_symfile_info));
|
1999-04-16 03:35:26 +02:00
|
|
|
|
memset ((char *) objfile->sym_stab_info, 0, sizeof (struct dbx_symfile_info));
|
2002-03-19 20:00:04 +01:00
|
|
|
|
make_cleanup (free_elfinfo, (void *) objfile);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
/* Process the normal ELF symbol table first. This may write some
|
|
|
|
|
chain of info into the dbx_symfile_info in objfile->sym_stab_info,
|
|
|
|
|
which can later be used by elfstab_offset_sections. */
|
|
|
|
|
|
1999-09-09 02:02:17 +02:00
|
|
|
|
elf_symtab_read (objfile, 0);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
/* Add the dynamic symbols. */
|
|
|
|
|
|
1999-09-09 02:02:17 +02:00
|
|
|
|
elf_symtab_read (objfile, 1);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
2003-02-20 19:31:14 +01:00
|
|
|
|
/* Install any minimal symbols that have been collected as the current
|
|
|
|
|
minimal symbols for this objfile. The debug readers below this point
|
|
|
|
|
should not generate new minimal symbols; if they do it's their
|
|
|
|
|
responsibility to install them. "mdebug" appears to be the only one
|
|
|
|
|
which will do this. */
|
|
|
|
|
|
|
|
|
|
install_minimal_symbols (objfile);
|
|
|
|
|
do_cleanups (back_to);
|
|
|
|
|
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* Now process debugging information, which is contained in
|
|
|
|
|
special ELF sections. */
|
|
|
|
|
|
|
|
|
|
/* If we are reinitializing, or if we have never loaded syms yet,
|
|
|
|
|
set table to empty. MAINLINE is cleared so that *_read_psymtab
|
|
|
|
|
functions do not all also re-initialize the psymbol table. */
|
|
|
|
|
if (mainline)
|
|
|
|
|
{
|
|
|
|
|
init_psymbol_list (objfile, 0);
|
|
|
|
|
mainline = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* We first have to find them... */
|
2002-03-19 20:00:04 +01:00
|
|
|
|
bfd_map_over_sections (abfd, elf_locate_sections, (void *) & ei);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
/* ELF debugging information is inserted into the psymtab in the
|
|
|
|
|
order of least informative first - most informative last. Since
|
|
|
|
|
the psymtab table is searched `most recent insertion first' this
|
|
|
|
|
increases the probability that more detailed debug information
|
|
|
|
|
for a section is found.
|
|
|
|
|
|
|
|
|
|
For instance, an object file might contain both .mdebug (XCOFF)
|
|
|
|
|
and .debug_info (DWARF2) sections then .mdebug is inserted first
|
|
|
|
|
(searched last) and DWARF2 is inserted last (searched first). If
|
|
|
|
|
we don't do this then the XCOFF info is found first - for code in
|
|
|
|
|
an included file XCOFF info is useless. */
|
|
|
|
|
|
|
|
|
|
if (ei.mdebugsect)
|
|
|
|
|
{
|
|
|
|
|
const struct ecoff_debug_swap *swap;
|
|
|
|
|
|
|
|
|
|
/* .mdebug section, presumably holding ECOFF debugging
|
1999-07-07 22:19:36 +02:00
|
|
|
|
information. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;
|
|
|
|
|
if (swap)
|
1999-09-09 02:02:17 +02:00
|
|
|
|
elfmdebug_build_psymtabs (objfile, swap, ei.mdebugsect);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
if (ei.stabsect)
|
|
|
|
|
{
|
|
|
|
|
asection *str_sect;
|
|
|
|
|
|
|
|
|
|
/* Stab sections have an associated string table that looks like
|
1999-07-07 22:19:36 +02:00
|
|
|
|
a separate section. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
str_sect = bfd_get_section_by_name (abfd, ".stabstr");
|
|
|
|
|
|
|
|
|
|
/* FIXME should probably warn about a stab section without a stabstr. */
|
|
|
|
|
if (str_sect)
|
|
|
|
|
elfstab_build_psymtabs (objfile,
|
|
|
|
|
mainline,
|
2003-01-31 20:22:18 +01:00
|
|
|
|
ei.stabsect,
|
1999-04-16 03:35:26 +02:00
|
|
|
|
str_sect->filepos,
|
|
|
|
|
bfd_section_size (abfd, str_sect));
|
|
|
|
|
}
|
* dwarf2read.c (dwarf2_objfile_data_key): New.
(struct dwarf2_per_objfile, dwarf2_per_objfile): New.
(dwarf_info_size, dwarf_abbrev_size, dwarf_line_size)
(dwarf_pubnames_size, dwarf_aranges_size, dwarf_loc_size)
(dwarf_macinfo_size, dwarf_str_size, dwarf_ranges_size)
(dwarf_frame_size, dwarf_eh_frame_size, dwarf_info_buffer)
(dwarf_abbrev_buffer, dwarf_line_buffer, dwarf_str_buffer)
(dwarf_macinfo_buffer, dwarf_ranges_buffer, dwarf_loc_buffer):
Remove variables.
(struct dwarf2_pinfo): Remove per-objfile members. Update comments.
(DWARF_ABBREV_SIZE, DWARF_LINE_SIZE)
(DWARF_LOC_SIZE, DWARF_MACINFO_SIZE, DWARF_STR_SIZE)
(DWARF_RANGES_SIZE, DWARF_INFO_BUFFER)
(DWARF_ABBREV_BUFFER, DWARF_LINE_BUFFER, DWARF_STR_BUFFER)
(DWARF_MACINFO_BUFFER, DWARF_RANGES_BUFFER, DWARF_LOC_BUFFER):
Remove macros.
(dwarf2_has_info): Take an objfile argument. Allocate per-objfile
data.
(dwarf2_locate_sections, dwarf2_build_psymtabs)
(dwarf2_build_psymtabs_easy, dwarf2_build_psymtabs_hard)
(skip_one_die, dwarf2_get_pc_bounds, dwarf2_read_abbrevs)
(read_partial_die, read_full_die, read_indirect_string)
(dwarf_decode_line_header, dwarf_decode_macros)
(dwarf2_symbol_mark_computed): Remove use of removed macros.
Update uses of removed variables.
(psymtab_to_symtab_1): Restore per-objfile data pointer. Remove use
of removed macros.
(_initialize_dwarf2_read): New function.
* symfile.h (dwarf2_has_info): Update prototype.
* coffread.c (coff_symfile_read): Update call to dwarf2_has_info.
* elfread.c (elf_symfile_read): Likewise.
2004-04-02 21:23:05 +02:00
|
|
|
|
if (dwarf2_has_info (objfile))
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
/* DWARF 2 sections */
|
1999-09-09 02:02:17 +02:00
|
|
|
|
dwarf2_build_psymtabs (objfile, mainline);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
else if (ei.dboffset && ei.lnoffset)
|
|
|
|
|
{
|
|
|
|
|
/* DWARF sections */
|
|
|
|
|
dwarf_build_psymtabs (objfile,
|
1999-09-09 02:02:17 +02:00
|
|
|
|
mainline,
|
1999-04-16 03:35:26 +02:00
|
|
|
|
ei.dboffset, ei.dbsize,
|
|
|
|
|
ei.lnoffset, ei.lnsize);
|
|
|
|
|
}
|
|
|
|
|
|
2003-07-18 23:31:50 +02:00
|
|
|
|
/* FIXME: kettenis/20030504: This still needs to be integrated with
|
|
|
|
|
dwarf2read.c in a better way. */
|
|
|
|
|
dwarf2_build_frame_info (objfile);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* This cleans up the objfile's sym_stab_info pointer, and the chain of
|
|
|
|
|
stab_section_info's, that might be dangling from it. */
|
|
|
|
|
|
|
|
|
|
static void
|
2002-03-19 20:00:04 +01:00
|
|
|
|
free_elfinfo (void *objp)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
1999-07-07 22:19:36 +02:00
|
|
|
|
struct objfile *objfile = (struct objfile *) objp;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
struct dbx_symfile_info *dbxinfo = objfile->sym_stab_info;
|
|
|
|
|
struct stab_section_info *ssi, *nssi;
|
|
|
|
|
|
|
|
|
|
ssi = dbxinfo->stab_section_info;
|
|
|
|
|
while (ssi)
|
|
|
|
|
{
|
|
|
|
|
nssi = ssi->next;
|
2001-12-02 23:38:23 +01:00
|
|
|
|
xmfree (objfile->md, ssi);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
ssi = nssi;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
dbxinfo->stab_section_info = 0; /* Just say No mo info about this. */
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/* 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).
|
|
|
|
|
|
|
|
|
|
We reinitialize buildsym, since we may be reading stabs from an ELF file. */
|
|
|
|
|
|
|
|
|
|
static void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
elf_new_init (struct objfile *ignore)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
stabsread_new_init ();
|
|
|
|
|
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
|
2000-07-30 03:48:28 +02:00
|
|
|
|
elf_symfile_finish (struct objfile *objfile)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
1999-07-07 22:19:36 +02:00
|
|
|
|
if (objfile->sym_stab_info != NULL)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
2001-12-02 23:38:23 +01:00
|
|
|
|
xmfree (objfile->md, objfile->sym_stab_info);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* 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
|
2000-07-30 03:48:28 +02:00
|
|
|
|
elf_symfile_init (struct objfile *objfile)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
/* ELF objects may be reordered, so set OBJF_REORDERED. If we
|
|
|
|
|
find this causes a significant slowdown in gdb then we could
|
|
|
|
|
set it in the debug symbol readers only when necessary. */
|
|
|
|
|
objfile->flags |= OBJF_REORDERED;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* 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
|
2000-07-30 03:48:28 +02:00
|
|
|
|
elfstab_offset_sections (struct objfile *objfile, struct partial_symtab *pst)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
char *filename = pst->filename;
|
|
|
|
|
struct dbx_symfile_info *dbx = objfile->sym_stab_info;
|
|
|
|
|
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, '/')))
|
1999-07-07 22:19:36 +02:00
|
|
|
|
filename = p + 1;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
|
|
|
|
|
/* 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]
|
2003-11-08 01:13:03 +01:00
|
|
|
|
&& strcmp (filename, maybe->filename) == 0)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
/* We found a match. But there might be several source files
|
|
|
|
|
(from different directories) with the same name. */
|
|
|
|
|
if (0 == maybe->found)
|
|
|
|
|
break;
|
1999-07-07 22:19:36 +02:00
|
|
|
|
questionable = maybe; /* Might use it later. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (maybe == 0 && questionable != 0)
|
|
|
|
|
{
|
2002-12-17 01:39:08 +01:00
|
|
|
|
complaint (&symfile_complaints,
|
|
|
|
|
"elf/stab section information questionable for %s", filename);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
maybe = questionable;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (maybe)
|
|
|
|
|
{
|
|
|
|
|
/* Found it! Allocate a new psymtab struct, and fill it in. */
|
|
|
|
|
maybe->found++;
|
|
|
|
|
pst->section_offsets = (struct section_offsets *)
|
2004-02-07 Elena Zannoni <ezannoni@redhat.com>
* dbxread.c (dbx_symfile_init, start_psymtab, end_psymtab,
coffstab_build_psymtabs, elfstab_build_psymtabs)
(stabsect_build_psymtabs): Replace psymbol_obstack with
objfile_obstack.
* dwarf2-frame.c (decode_frame_entry_1): Ditto.
* dwarf2read.c (dwarf2_build_psymtabs_hard, dwarf2_read_section):
Ditto.
* dwarfread.c (scan_compilation_units): Ditto.
* elfread.c (elfstab_offset_sections): Ditto.
* hppa-tdep.c (read_unwind_info): Ditto.
* hpread.c (hpread_build_psymtabs, hpread_start_psymtab)
(hpread_end_psymtab): Ditto.
* mdebugread.c (mdebug_build_psymtabs, add_pending)
(parse_partial_symbols, new_psymtab, elfmdebug_build_psymtabs):
Ditto.
* mips-tdep.c (non_heuristic_proc_desc): Ditto.
* objfiles.c (add_to_objfile_sections)
(build_objfile_section_table): Ditto.
(allocate_objfile): Remove init of psymbol_obstack.
(free_objfile): Remove freeing of psymbol_obstack.
* objfiles.h (struct objfile): Remove field
psymbol_obstack. Update comments.
* pa64solib.c (pa64_solib_add_solib_objfile): Replace
psymbol_obstack with objfile_obstack.
* solib-sunos.c (allocate_rt_common_objfile): Remove init of
psymbol_obstack.
* somread.c (som_symfile_offsets, init_import_symbols)
(init_export_symbols): Replace psymbol_obstack with
objfile_obstack.
* somsolib.c (som_solib_add_solib_objfile): Ditto.
* symfile.c (default_symfile_offsets, syms_from_objfile)
(reread_symbols): Remove freeing and init of psymbol_obstack.
(cashier_psymtab): Update comment.
* symmisc.c (print_objfile_statistics): Don't report stats for
psymbol obstack.
* symtab.h (struct general_symbol_info, struct partial_symtab):
Update comments.
* xcoffread.c (xcoff_start_psymtab, xcoff_end_psymtab, swap_sym)
(xcoff_symfile_offsets): Replace psymbol_obstack with
objfile_obstack.
2004-02-07 19:29:54 +01:00
|
|
|
|
obstack_alloc (&objfile->objfile_obstack,
|
2003-06-07 01:33:00 +02:00
|
|
|
|
SIZEOF_N_SECTION_OFFSETS (objfile->num_sections));
|
|
|
|
|
for (i = 0; i < maybe->num_sections; i++)
|
2000-08-07 17:02:48 +02:00
|
|
|
|
(pst->section_offsets)->offsets[i] = maybe->sections[i];
|
1999-04-16 03:35:26 +02:00
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* We were unable to find any offsets for this file. Complain. */
|
1999-07-07 22:19:36 +02:00
|
|
|
|
if (dbx->stab_section_info) /* If there *is* any info, */
|
2002-12-17 01:39:08 +01:00
|
|
|
|
complaint (&symfile_complaints,
|
|
|
|
|
"elf/stab section information missing for %s", filename);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Register that we are able to handle ELF object file formats. */
|
|
|
|
|
|
|
|
|
|
static struct sym_fns elf_sym_fns =
|
|
|
|
|
{
|
|
|
|
|
bfd_target_elf_flavour,
|
1999-07-07 22:19:36 +02:00
|
|
|
|
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 */
|
|
|
|
|
elf_symfile_finish, /* sym_finish: finished with file, cleanup */
|
1999-08-09 23:36:23 +02:00
|
|
|
|
default_symfile_offsets, /* sym_offsets: Translate ext. to int. relocation */
|
1999-07-07 22:19:36 +02:00
|
|
|
|
NULL /* next: pointer to next struct sym_fns */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
void
|
2000-07-30 03:48:28 +02:00
|
|
|
|
_initialize_elfread (void)
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
|
|
|
|
add_symtab_fns (&elf_sym_fns);
|
|
|
|
|
}
|