1999-04-16 03:35:26 +02:00
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/* Read ELF (Executable and Linking Format) object files for GDB.
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Copyright 1991, 92, 93, 94, 95, 96, 1998 Free Software Foundation, Inc.
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Written by Fred Fish at Cygnus Support.
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1999-07-07 22:19:36 +02:00
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This file is part of GDB.
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1999-04-16 03:35:26 +02:00
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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
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(at your option) any later version.
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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1999-04-16 03:35:26 +02:00
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#include "defs.h"
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#include "bfd.h"
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#include "gdb_string.h"
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#include "elf-bfd.h"
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#include "elf/mips.h"
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#include "symtab.h"
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#include "symfile.h"
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#include "objfiles.h"
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#include "buildsym.h"
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#include "stabsread.h"
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#include "gdb-stabs.h"
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#include "complaints.h"
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#include "demangle.h"
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2000-05-28 03:12:42 +02:00
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extern void _initialize_elfread (void);
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1999-05-25 20:09:09 +02:00
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1999-04-16 03:35:26 +02:00
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/* The struct elfinfo is available only during ELF symbol table and
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1999-09-28 23:55:21 +02:00
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psymtab reading. It is destroyed at the completion of psymtab-reading.
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1999-04-16 03:35:26 +02:00
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It's local to elf_symfile_read. */
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1999-07-07 22:19:36 +02:00
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struct elfinfo
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{
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file_ptr dboffset; /* Offset to dwarf debug section */
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unsigned int dbsize; /* Size of dwarf debug section */
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file_ptr lnoffset; /* Offset to dwarf line number section */
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unsigned int lnsize; /* Size of dwarf line number section */
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asection *stabsect; /* Section pointer for .stab section */
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asection *stabindexsect; /* Section pointer for .stab.index section */
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asection *mdebugsect; /* Section pointer for .mdebug section */
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};
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1999-04-16 03:35:26 +02:00
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/* Various things we might complain about... */
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1999-07-07 22:19:36 +02:00
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struct complaint section_info_complaint =
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{"elf/stab section information %s without a preceding file symbol", 0, 0};
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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struct complaint section_info_dup_complaint =
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{"duplicated elf/stab section information for %s", 0, 0};
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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struct complaint stab_info_mismatch_complaint =
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{"elf/stab section information missing for %s", 0, 0};
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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struct complaint stab_info_questionable_complaint =
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{"elf/stab section information questionable for %s", 0, 0};
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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static void elf_symfile_init (struct objfile *);
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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static void elf_new_init (struct objfile *);
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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static void elf_symfile_read (struct objfile *, int);
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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static void elf_symfile_finish (struct objfile *);
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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static void elf_symtab_read (struct objfile *, int);
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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static void free_elfinfo (void *);
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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static struct minimal_symbol *record_minimal_symbol_and_info (char *,
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CORE_ADDR,
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enum
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minimal_symbol_type,
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char *,
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asection *
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bfd_section,
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struct objfile
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*);
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1999-04-16 03:35:26 +02:00
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2000-05-28 03:12:42 +02:00
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static void elf_locate_sections (bfd *, asection *, void *);
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1999-04-16 03:35:26 +02:00
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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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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
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used).
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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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-kingdon). */
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static void
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2000-07-30 03:48:28 +02:00
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elf_locate_sections (bfd *ignore_abfd, asection *sectp, PTR eip)
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1999-04-16 03:35:26 +02:00
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{
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register struct elfinfo *ei;
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ei = (struct elfinfo *) eip;
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1999-07-07 22:19:36 +02:00
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if (STREQ (sectp->name, ".debug"))
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1999-04-16 03:35:26 +02:00
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{
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1999-07-07 22:19:36 +02:00
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ei->dboffset = sectp->filepos;
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ei->dbsize = bfd_get_section_size_before_reloc (sectp);
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1999-04-16 03:35:26 +02:00
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}
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1999-07-07 22:19:36 +02:00
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else if (STREQ (sectp->name, ".line"))
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1999-04-16 03:35:26 +02:00
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{
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1999-07-07 22:19:36 +02:00
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ei->lnoffset = sectp->filepos;
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ei->lnsize = bfd_get_section_size_before_reloc (sectp);
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1999-04-16 03:35:26 +02:00
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}
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1999-07-07 22:19:36 +02:00
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else if (STREQ (sectp->name, ".stab"))
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1999-04-16 03:35:26 +02:00
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{
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1999-07-07 22:19:36 +02:00
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ei->stabsect = sectp;
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1999-04-16 03:35:26 +02:00
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}
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1999-07-07 22:19:36 +02:00
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else if (STREQ (sectp->name, ".stab.index"))
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1999-04-16 03:35:26 +02:00
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{
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1999-07-07 22:19:36 +02:00
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ei->stabindexsect = sectp;
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1999-04-16 03:35:26 +02:00
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}
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1999-07-07 22:19:36 +02:00
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else if (STREQ (sectp->name, ".mdebug"))
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1999-04-16 03:35:26 +02:00
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{
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1999-07-07 22:19:36 +02:00
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ei->mdebugsect = sectp;
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1999-04-16 03:35:26 +02:00
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}
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}
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1999-07-07 22:19:36 +02:00
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#if 0 /* Currently unused */
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1999-04-16 03:35:26 +02:00
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char *
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2000-07-30 03:48:28 +02:00
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elf_interpreter (bfd *abfd)
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1999-04-16 03:35:26 +02:00
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{
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sec_ptr interp_sec;
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unsigned size;
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char *interp = NULL;
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interp_sec = bfd_get_section_by_name (abfd, ".interp");
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if (interp_sec)
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{
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size = bfd_section_size (abfd, interp_sec);
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interp = alloca (size);
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1999-07-07 22:19:36 +02:00
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if (bfd_get_section_contents (abfd, interp_sec, interp, (file_ptr) 0,
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1999-04-16 03:35:26 +02:00
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size))
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{
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interp = savestring (interp, size - 1);
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}
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else
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{
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interp = NULL;
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}
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}
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return (interp);
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}
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#endif
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static struct minimal_symbol *
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2000-07-30 03:48:28 +02:00
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record_minimal_symbol_and_info (char *name, CORE_ADDR address,
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enum minimal_symbol_type ms_type, char *info, /* FIXME, is this really char *? */
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asection *bfd_section, struct objfile *objfile)
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1999-04-16 03:35:26 +02:00
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{
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#ifdef SMASH_TEXT_ADDRESS
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2000-12-04 16:55:09 +01:00
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if (ms_type == mst_text || ms_type == mst_file_text)
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SMASH_TEXT_ADDRESS (address);
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1999-04-16 03:35:26 +02:00
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#endif
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return prim_record_minimal_symbol_and_info
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2000-12-04 16:55:09 +01:00
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(name, address, ms_type, info, bfd_section->index, bfd_section, objfile);
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1999-04-16 03:35:26 +02:00
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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
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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elf_symtab_read -- read the symbol table of an ELF file
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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
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1999-04-16 03:35:26 +02:00
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1999-09-09 02:02:17 +02:00
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void elf_symtab_read (struct objfile *objfile, int dynamic)
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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
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1999-04-16 03:35:26 +02:00
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1999-09-09 02:02:17 +02:00
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Given an objfile and a flag that specifies whether or not the objfile
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is for an executable or not (may be shared library for example), add
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all the global function and data symbols to the minimal symbol table.
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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In stabs-in-ELF, as implemented by Sun, there are some local symbols
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defined in the ELF symbol table, which can be used to locate
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the beginnings of sections from each ".o" file that was linked to
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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.
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1999-04-16 03:35:26 +02:00
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1999-07-07 22:19:36 +02:00
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*/
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1999-04-16 03:35:26 +02:00
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static void
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2000-07-30 03:48:28 +02:00
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elf_symtab_read (struct objfile *objfile, int dynamic)
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1999-04-16 03:35:26 +02:00
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{
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long storage_needed;
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asymbol *sym;
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asymbol **symbol_table;
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long number_of_symbols;
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long i;
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int index;
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struct cleanup *back_to;
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CORE_ADDR symaddr;
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1999-09-09 02:02:17 +02:00
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CORE_ADDR offset;
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1999-04-16 03:35:26 +02:00
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enum minimal_symbol_type ms_type;
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/* If sectinfo is nonNULL, it contains section info that should end up
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filed in the objfile. */
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struct stab_section_info *sectinfo = NULL;
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/* If filesym is nonzero, it points to a file symbol, but we haven't
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seen any section info for it yet. */
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asymbol *filesym = 0;
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#ifdef SOFUN_ADDRESS_MAYBE_MISSING
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/* Name of filesym, as saved on the symbol_obstack. */
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char *filesymname = obsavestring ("", 0, &objfile->symbol_obstack);
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#endif
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struct dbx_symfile_info *dbx = objfile->sym_stab_info;
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unsigned long size;
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1999-09-09 02:02:17 +02:00
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int stripped = (bfd_get_symcount (objfile->obfd) == 0);
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1999-07-07 22:19:36 +02:00
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1999-04-16 03:35:26 +02:00
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if (dynamic)
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{
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1999-09-09 02:02:17 +02:00
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storage_needed = bfd_get_dynamic_symtab_upper_bound (objfile->obfd);
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1999-04-16 03:35:26 +02:00
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/* Nothing to be done if there is no dynamic symtab. */
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if (storage_needed < 0)
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return;
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}
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else
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{
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1999-09-09 02:02:17 +02:00
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storage_needed = bfd_get_symtab_upper_bound (objfile->obfd);
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1999-04-16 03:35:26 +02:00
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if (storage_needed < 0)
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1999-09-09 02:02:17 +02:00
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error ("Can't read symbols from %s: %s", bfd_get_filename (objfile->obfd),
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1999-04-16 03:35:26 +02:00
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bfd_errmsg (bfd_get_error ()));
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}
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if (storage_needed > 0)
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{
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symbol_table = (asymbol **) xmalloc (storage_needed);
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2000-12-15 02:01:51 +01:00
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back_to = make_cleanup (xfree, symbol_table);
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1999-04-16 03:35:26 +02:00
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if (dynamic)
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1999-09-09 02:02:17 +02:00
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number_of_symbols = bfd_canonicalize_dynamic_symtab (objfile->obfd,
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1999-04-16 03:35:26 +02:00
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symbol_table);
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else
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1999-09-09 02:02:17 +02:00
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number_of_symbols = bfd_canonicalize_symtab (objfile->obfd, symbol_table);
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1999-04-16 03:35:26 +02:00
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if (number_of_symbols < 0)
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1999-09-09 02:02:17 +02:00
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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;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
msym = record_minimal_symbol_and_info
|
1999-07-07 22:19:36 +02:00
|
|
|
|
((char *) sym->name, symaddr,
|
|
|
|
|
mst_solib_trampoline, NULL, 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),
|
1999-04-16 03:35:26 +02:00
|
|
|
|
&objfile->symbol_obstack);
|
|
|
|
|
#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
|
|
|
|
{
|
1999-07-07 22:19:36 +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'))
|
|
|
|
|
/* 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). */
|
|
|
|
|
continue;
|
|
|
|
|
#ifdef HARRIS_TARGET
|
|
|
|
|
else if (sym->name[0] == '.' && sym->name[1] == '.')
|
|
|
|
|
{
|
|
|
|
|
/* Looks like a Harris compiler generated label for the
|
1999-07-07 22:19:36 +02:00
|
|
|
|
purpose of marking instructions that are relevant to
|
|
|
|
|
DWARF dies. The assembler can't get rid of these
|
|
|
|
|
because they are relocatable addresses that the
|
|
|
|
|
linker needs to resolve. */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
continue;
|
|
|
|
|
}
|
1999-07-07 22:19:36 +02:00
|
|
|
|
#endif
|
1999-04-16 03:35:26 +02:00
|
|
|
|
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
|
|
|
|
{
|
|
|
|
|
/* Named Local variable in a Data section. Check its
|
1999-07-07 22:19:36 +02:00
|
|
|
|
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' */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
index = SECT_OFF_MAX;
|
1999-07-07 22:19:36 +02:00
|
|
|
|
if (STREQ ("Bbss.bss", sym->name))
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
Elena Zannoni <ezannoni@kwikemart.cygnus.com>
* objfiles.h (SECT_OFF_DATA, SECT_OFF_TEXT, SECT_OFF_BSS,
SECT_OFF_RODATA): Define as functions of OBJFILE. Add
sect_index_text, sect_index_data, sect_index_rodata,
sect_index_bss to objfile structure.
* gdb-stabs.h (SECT_OFF_DATA, SECT_OFF_TEXT, SECT_OFF_BSS,
SECT_OFF_RODATA): Remove.
* objfiles.c (allocate_objfile): Initialize
sect_index_{text,data,bss,rodata} to -1, for error detection.
* symfile.c (default_symfile_offsets): Initialize
sect_index_{text,data,bss,rodata} from bfd information.
* xcoffread.c (xcoff_symfile_offsets): Ditto.
* somread.c (som_symfile_offsets): Initialize
sect_index_{text,data,bss,rodata}.
* coffread.c, dbxread.c, elfread.c, hp-psymtab-read.c,
hp-symtab-read.c, hpread.c, mdebugread.c, minsyms.c,
mipsread.c, objfiles.c, os9kread.c, pa64solib.c, partial-stab.h,
remote-os9k.c, remote-vx.c, remote.c, rs6000-nat.c, somsolib.c,
stabsread.c, symfile.c, xcoffread.c:
Update use of SECT_OFF_{TEXT,DATA,BSS,RODATA} to depend on the
current objfile.
* xcoffread.c: Add new field objfile to find_targ_sec_arg.
2000-05-04 18:52:34 +02:00
|
|
|
|
index = SECT_OFF_BSS (objfile);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
1999-07-07 22:19:36 +02:00
|
|
|
|
else if (STREQ ("Ddata.data", sym->name))
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
Elena Zannoni <ezannoni@kwikemart.cygnus.com>
* objfiles.h (SECT_OFF_DATA, SECT_OFF_TEXT, SECT_OFF_BSS,
SECT_OFF_RODATA): Define as functions of OBJFILE. Add
sect_index_text, sect_index_data, sect_index_rodata,
sect_index_bss to objfile structure.
* gdb-stabs.h (SECT_OFF_DATA, SECT_OFF_TEXT, SECT_OFF_BSS,
SECT_OFF_RODATA): Remove.
* objfiles.c (allocate_objfile): Initialize
sect_index_{text,data,bss,rodata} to -1, for error detection.
* symfile.c (default_symfile_offsets): Initialize
sect_index_{text,data,bss,rodata} from bfd information.
* xcoffread.c (xcoff_symfile_offsets): Ditto.
* somread.c (som_symfile_offsets): Initialize
sect_index_{text,data,bss,rodata}.
* coffread.c, dbxread.c, elfread.c, hp-psymtab-read.c,
hp-symtab-read.c, hpread.c, mdebugread.c, minsyms.c,
mipsread.c, objfiles.c, os9kread.c, pa64solib.c, partial-stab.h,
remote-os9k.c, remote-vx.c, remote.c, rs6000-nat.c, somsolib.c,
stabsread.c, symfile.c, xcoffread.c:
Update use of SECT_OFF_{TEXT,DATA,BSS,RODATA} to depend on the
current objfile.
* xcoffread.c: Add new field objfile to find_targ_sec_arg.
2000-05-04 18:52:34 +02:00
|
|
|
|
index = SECT_OFF_DATA (objfile);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
1999-07-07 22:19:36 +02:00
|
|
|
|
else if (STREQ ("Drodata.rodata", sym->name))
|
1999-04-16 03:35:26 +02:00
|
|
|
|
{
|
Elena Zannoni <ezannoni@kwikemart.cygnus.com>
* objfiles.h (SECT_OFF_DATA, SECT_OFF_TEXT, SECT_OFF_BSS,
SECT_OFF_RODATA): Define as functions of OBJFILE. Add
sect_index_text, sect_index_data, sect_index_rodata,
sect_index_bss to objfile structure.
* gdb-stabs.h (SECT_OFF_DATA, SECT_OFF_TEXT, SECT_OFF_BSS,
SECT_OFF_RODATA): Remove.
* objfiles.c (allocate_objfile): Initialize
sect_index_{text,data,bss,rodata} to -1, for error detection.
* symfile.c (default_symfile_offsets): Initialize
sect_index_{text,data,bss,rodata} from bfd information.
* xcoffread.c (xcoff_symfile_offsets): Ditto.
* somread.c (som_symfile_offsets): Initialize
sect_index_{text,data,bss,rodata}.
* coffread.c, dbxread.c, elfread.c, hp-psymtab-read.c,
hp-symtab-read.c, hpread.c, mdebugread.c, minsyms.c,
mipsread.c, objfiles.c, os9kread.c, pa64solib.c, partial-stab.h,
remote-os9k.c, remote-vx.c, remote.c, rs6000-nat.c, somsolib.c,
stabsread.c, symfile.c, xcoffread.c:
Update use of SECT_OFF_{TEXT,DATA,BSS,RODATA} to depend on the
current objfile.
* xcoffread.c: Add new field objfile to find_targ_sec_arg.
2000-05-04 18:52:34 +02:00
|
|
|
|
index = SECT_OFF_RODATA (objfile);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
|
|
|
|
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 *)
|
1999-07-07 22:19:36 +02:00
|
|
|
|
xmmalloc (objfile->md, sizeof (*sectinfo));
|
1999-04-16 03:35:26 +02:00
|
|
|
|
memset ((PTR) sectinfo, 0, sizeof (*sectinfo));
|
|
|
|
|
if (filesym == NULL)
|
|
|
|
|
{
|
|
|
|
|
complain (§ion_info_complaint,
|
1999-07-07 22:19:36 +02:00
|
|
|
|
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
|
|
|
|
}
|
|
|
|
|
}
|
2000-08-07 17:02:48 +02:00
|
|
|
|
if (index != -1)
|
|
|
|
|
{
|
|
|
|
|
if (sectinfo->sections[index] != 0)
|
|
|
|
|
{
|
|
|
|
|
complain (§ion_info_dup_complaint,
|
|
|
|
|
sectinfo->filename);
|
|
|
|
|
}
|
1999-04-16 03:35:26 +02:00
|
|
|
|
}
|
2000-08-07 17:02:48 +02:00
|
|
|
|
else
|
|
|
|
|
internal_error ("Section index uninitialized.");
|
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 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
|
|
|
|
}
|
2000-08-07 17:02:48 +02:00
|
|
|
|
if (index != -1)
|
|
|
|
|
sectinfo->sections[index] = symaddr;
|
|
|
|
|
else
|
|
|
|
|
internal_error ("Section index uninitialized.");
|
1999-04-16 03:35:26 +02:00
|
|
|
|
/* 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
|
1999-07-07 22:19:36 +02:00
|
|
|
|
symbol processing. */
|
|
|
|
|
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
|
|
|
|
}
|
|
|
|
|
/* Pass symbol size field in via BFD. FIXME!!! */
|
1999-07-07 22:19:36 +02:00
|
|
|
|
size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size;
|
1999-04-16 03:35:26 +02:00
|
|
|
|
msym = record_minimal_symbol_and_info
|
1999-07-07 22:19:36 +02:00
|
|
|
|
((char *) sym->name, symaddr,
|
|
|
|
|
ms_type, (PTR) size, sym->section, objfile);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
#ifdef SOFUN_ADDRESS_MAYBE_MISSING
|
|
|
|
|
if (msym != NULL)
|
|
|
|
|
msym->filename = filesymname;
|
|
|
|
|
#endif
|
|
|
|
|
#ifdef ELF_MAKE_MSYMBOL_SPECIAL
|
1999-07-07 22:19:36 +02:00
|
|
|
|
ELF_MAKE_MSYMBOL_SPECIAL (sym, msym);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
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));
|
|
|
|
|
make_cleanup (free_elfinfo, (PTR) objfile);
|
|
|
|
|
|
|
|
|
|
/* 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
|
|
|
|
|
|
|
|
|
/* 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... */
|
1999-07-07 22:19:36 +02:00
|
|
|
|
bfd_map_over_sections (abfd, elf_locate_sections, (PTR) & 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,
|
|
|
|
|
ei.stabsect->filepos,
|
|
|
|
|
bfd_section_size (abfd, ei.stabsect),
|
|
|
|
|
str_sect->filepos,
|
|
|
|
|
bfd_section_size (abfd, str_sect));
|
|
|
|
|
}
|
|
|
|
|
if (dwarf2_has_info (abfd))
|
|
|
|
|
{
|
|
|
|
|
/* 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);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Install any minimal symbols that have been collected as the current
|
|
|
|
|
minimal symbols for this objfile. */
|
|
|
|
|
|
|
|
|
|
install_minimal_symbols (objfile);
|
|
|
|
|
|
|
|
|
|
do_cleanups (back_to);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* 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
|
2000-07-30 03:48:28 +02:00
|
|
|
|
free_elfinfo (PTR 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;
|
|
|
|
|
mfree (objfile->md, ssi);
|
|
|
|
|
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
|
|
|
|
{
|
1999-07-07 22:19:36 +02:00
|
|
|
|
mfree (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]
|
|
|
|
|
&& STREQ (filename, maybe->filename))
|
|
|
|
|
{
|
|
|
|
|
/* 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)
|
|
|
|
|
{
|
|
|
|
|
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 *)
|
1999-08-09 23:36:23 +02:00
|
|
|
|
obstack_alloc (&objfile->psymbol_obstack, SIZEOF_SECTION_OFFSETS);
|
1999-04-16 03:35:26 +02:00
|
|
|
|
for (i = 0; i < SECT_OFF_MAX; 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, */
|
1999-04-16 03:35:26 +02:00
|
|
|
|
complain (&stab_info_mismatch_complaint, filename);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* 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);
|
|
|
|
|
}
|