/* GDB routines for manipulating objfiles.
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/* GDB routines for manipulating objfiles.
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Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
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Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
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2002, 2003, 2004, 2007, 2008 Free Software Foundation, Inc.
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2002, 2003, 2004, 2007, 2008 Free Software Foundation, Inc.
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Contributed by Cygnus Support, using pieces from other GDB modules.
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Contributed by Cygnus Support, using pieces from other GDB modules.
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This file is part of GDB.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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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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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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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, see <http://www.gnu.org/licenses/>. */
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* This file contains support routines for creating, manipulating, and
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/* This file contains support routines for creating, manipulating, and
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destroying objfile structures. */
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destroying objfile structures. */
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#include "defs.h"
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#include "defs.h"
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#include "bfd.h" /* Binary File Description */
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#include "bfd.h" /* Binary File Description */
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#include "symtab.h"
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#include "symtab.h"
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#include "symfile.h"
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#include "symfile.h"
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#include "objfiles.h"
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#include "objfiles.h"
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#include "gdb-stabs.h"
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#include "gdb-stabs.h"
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#include "target.h"
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#include "target.h"
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#include "bcache.h"
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#include "bcache.h"
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#include "mdebugread.h"
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#include "mdebugread.h"
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#include "expression.h"
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#include "expression.h"
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#include "parser-defs.h"
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#include "parser-defs.h"
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#include "gdb_assert.h"
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#include "gdb_assert.h"
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#include <sys/types.h>
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#include <sys/types.h>
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#include "gdb_stat.h"
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#include "gdb_stat.h"
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#include <fcntl.h>
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#include <fcntl.h>
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#include "gdb_obstack.h"
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#include "gdb_obstack.h"
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#include "gdb_string.h"
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#include "gdb_string.h"
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#include "hashtab.h"
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#include "hashtab.h"
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#include "breakpoint.h"
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#include "breakpoint.h"
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#include "block.h"
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#include "block.h"
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#include "dictionary.h"
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#include "dictionary.h"
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#include "source.h"
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#include "source.h"
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#include "addrmap.h"
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#include "addrmap.h"
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/* Prototypes for local functions */
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/* Prototypes for local functions */
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static void objfile_alloc_data (struct objfile *objfile);
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static void objfile_alloc_data (struct objfile *objfile);
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static void objfile_free_data (struct objfile *objfile);
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static void objfile_free_data (struct objfile *objfile);
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/* Externally visible variables that are owned by this module.
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/* Externally visible variables that are owned by this module.
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See declarations in objfile.h for more info. */
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See declarations in objfile.h for more info. */
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struct objfile *object_files; /* Linked list of all objfiles */
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struct objfile *object_files; /* Linked list of all objfiles */
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struct objfile *current_objfile; /* For symbol file being read in */
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struct objfile *current_objfile; /* For symbol file being read in */
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struct objfile *symfile_objfile; /* Main symbol table loaded from */
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struct objfile *symfile_objfile; /* Main symbol table loaded from */
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struct objfile *rt_common_objfile; /* For runtime common symbols */
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struct objfile *rt_common_objfile; /* For runtime common symbols */
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/* Locate all mappable sections of a BFD file.
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/* Locate all mappable sections of a BFD file.
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objfile_p_char is a char * to get it through
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objfile_p_char is a char * to get it through
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bfd_map_over_sections; we cast it back to its proper type. */
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bfd_map_over_sections; we cast it back to its proper type. */
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#ifndef TARGET_KEEP_SECTION
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#ifndef TARGET_KEEP_SECTION
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#define TARGET_KEEP_SECTION(ASECT) 0
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#define TARGET_KEEP_SECTION(ASECT) 0
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#endif
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#endif
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/* Called via bfd_map_over_sections to build up the section table that
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/* Called via bfd_map_over_sections to build up the section table that
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the objfile references. The objfile contains pointers to the start
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the objfile references. The objfile contains pointers to the start
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of the table (objfile->sections) and to the first location after
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of the table (objfile->sections) and to the first location after
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the end of the table (objfile->sections_end). */
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the end of the table (objfile->sections_end). */
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static void
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static void
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add_to_objfile_sections (struct bfd *abfd, struct bfd_section *asect,
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add_to_objfile_sections (struct bfd *abfd, struct bfd_section *asect,
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void *objfile_p_char)
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void *objfile_p_char)
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{
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{
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struct objfile *objfile = (struct objfile *) objfile_p_char;
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struct objfile *objfile = (struct objfile *) objfile_p_char;
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struct obj_section section;
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struct obj_section section;
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flagword aflag;
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flagword aflag;
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aflag = bfd_get_section_flags (abfd, asect);
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aflag = bfd_get_section_flags (abfd, asect);
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if (!(aflag & SEC_ALLOC) && !(TARGET_KEEP_SECTION (asect)))
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if (!(aflag & SEC_ALLOC) && !(TARGET_KEEP_SECTION (asect)))
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return;
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return;
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if (0 == bfd_section_size (abfd, asect))
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if (0 == bfd_section_size (abfd, asect))
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return;
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return;
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section.offset = 0;
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section.offset = 0;
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section.objfile = objfile;
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section.objfile = objfile;
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section.the_bfd_section = asect;
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section.the_bfd_section = asect;
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section.ovly_mapped = 0;
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section.ovly_mapped = 0;
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section.addr = bfd_section_vma (abfd, asect);
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section.addr = bfd_section_vma (abfd, asect);
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section.endaddr = section.addr + bfd_section_size (abfd, asect);
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section.endaddr = section.addr + bfd_section_size (abfd, asect);
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obstack_grow (&objfile->objfile_obstack, (char *) §ion, sizeof (section));
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obstack_grow (&objfile->objfile_obstack, (char *) §ion, sizeof (section));
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objfile->sections_end = (struct obj_section *) (((unsigned long) objfile->sections_end) + 1);
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objfile->sections_end = (struct obj_section *) (((unsigned long) objfile->sections_end) + 1);
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}
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}
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/* Builds a section table for OBJFILE.
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/* Builds a section table for OBJFILE.
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Returns 0 if OK, 1 on error (in which case bfd_error contains the
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Returns 0 if OK, 1 on error (in which case bfd_error contains the
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error).
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error).
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Note that while we are building the table, which goes into the
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Note that while we are building the table, which goes into the
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psymbol obstack, we hijack the sections_end pointer to instead hold
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psymbol obstack, we hijack the sections_end pointer to instead hold
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a count of the number of sections. When bfd_map_over_sections
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a count of the number of sections. When bfd_map_over_sections
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returns, this count is used to compute the pointer to the end of
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returns, this count is used to compute the pointer to the end of
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the sections table, which then overwrites the count.
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the sections table, which then overwrites the count.
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Also note that the OFFSET and OVLY_MAPPED in each table entry
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Also note that the OFFSET and OVLY_MAPPED in each table entry
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are initialized to zero.
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are initialized to zero.
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Also note that if anything else writes to the psymbol obstack while
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Also note that if anything else writes to the psymbol obstack while
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we are building the table, we're pretty much hosed. */
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we are building the table, we're pretty much hosed. */
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int
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int
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build_objfile_section_table (struct objfile *objfile)
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build_objfile_section_table (struct objfile *objfile)
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{
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{
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/* objfile->sections can be already set when reading a mapped symbol
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/* objfile->sections can be already set when reading a mapped symbol
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file. I believe that we do need to rebuild the section table in
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file. I believe that we do need to rebuild the section table in
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this case (we rebuild other things derived from the bfd), but we
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this case (we rebuild other things derived from the bfd), but we
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can't free the old one (it's in the objfile_obstack). So we just
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can't free the old one (it's in the objfile_obstack). So we just
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waste some memory. */
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waste some memory. */
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objfile->sections_end = 0;
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objfile->sections_end = 0;
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bfd_map_over_sections (objfile->obfd, add_to_objfile_sections, (char *) objfile);
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bfd_map_over_sections (objfile->obfd, add_to_objfile_sections, (char *) objfile);
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objfile->sections = (struct obj_section *)
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objfile->sections = (struct obj_section *)
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obstack_finish (&objfile->objfile_obstack);
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obstack_finish (&objfile->objfile_obstack);
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objfile->sections_end = objfile->sections + (unsigned long) objfile->sections_end;
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objfile->sections_end = objfile->sections + (unsigned long) objfile->sections_end;
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return (0);
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return (0);
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}
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}
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/* Given a pointer to an initialized bfd (ABFD) and some flag bits
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/* Given a pointer to an initialized bfd (ABFD) and some flag bits
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allocate a new objfile struct, fill it in as best we can, link it
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allocate a new objfile struct, fill it in as best we can, link it
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into the list of all known objfiles, and return a pointer to the
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into the list of all known objfiles, and return a pointer to the
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new objfile struct.
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new objfile struct.
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The FLAGS word contains various bits (OBJF_*) that can be taken as
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The FLAGS word contains various bits (OBJF_*) that can be taken as
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requests for specific operations. Other bits like OBJF_SHARED are
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requests for specific operations. Other bits like OBJF_SHARED are
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simply copied through to the new objfile flags member. */
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simply copied through to the new objfile flags member. */
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/* NOTE: carlton/2003-02-04: This function is called with args NULL, 0
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/* NOTE: carlton/2003-02-04: This function is called with args NULL, 0
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by jv-lang.c, to create an artificial objfile used to hold
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by jv-lang.c, to create an artificial objfile used to hold
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information about dynamically-loaded Java classes. Unfortunately,
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information about dynamically-loaded Java classes. Unfortunately,
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that branch of this function doesn't get tested very frequently, so
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that branch of this function doesn't get tested very frequently, so
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it's prone to breakage. (E.g. at one time the name was set to NULL
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it's prone to breakage. (E.g. at one time the name was set to NULL
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in that situation, which broke a loop over all names in the dynamic
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in that situation, which broke a loop over all names in the dynamic
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library loader.) If you change this function, please try to leave
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library loader.) If you change this function, please try to leave
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things in a consistent state even if abfd is NULL. */
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things in a consistent state even if abfd is NULL. */
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struct objfile *
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struct objfile *
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allocate_objfile (bfd *abfd, int flags)
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allocate_objfile (bfd *abfd, int flags)
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{
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{
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struct objfile *objfile = NULL;
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struct objfile *objfile = NULL;
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struct objfile *last_one = NULL;
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struct objfile *last_one = NULL;
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/* If we don't support mapped symbol files, didn't ask for the file to be
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/* If we don't support mapped symbol files, didn't ask for the file to be
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mapped, or failed to open the mapped file for some reason, then revert
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mapped, or failed to open the mapped file for some reason, then revert
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back to an unmapped objfile. */
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back to an unmapped objfile. */
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if (objfile == NULL)
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if (objfile == NULL)
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{
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{
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objfile = (struct objfile *) xmalloc (sizeof (struct objfile));
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objfile = (struct objfile *) xmalloc (sizeof (struct objfile));
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memset (objfile, 0, sizeof (struct objfile));
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memset (objfile, 0, sizeof (struct objfile));
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objfile->md = NULL;
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objfile->md = NULL;
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objfile->psymbol_cache = bcache_xmalloc ();
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objfile->psymbol_cache = bcache_xmalloc ();
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objfile->macro_cache = bcache_xmalloc ();
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objfile->macro_cache = bcache_xmalloc ();
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/* We could use obstack_specify_allocation here instead, but
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/* We could use obstack_specify_allocation here instead, but
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gdb_obstack.h specifies the alloc/dealloc functions. */
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gdb_obstack.h specifies the alloc/dealloc functions. */
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obstack_init (&objfile->objfile_obstack);
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obstack_init (&objfile->objfile_obstack);
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terminate_minimal_symbol_table (objfile);
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terminate_minimal_symbol_table (objfile);
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}
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}
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objfile_alloc_data (objfile);
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objfile_alloc_data (objfile);
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/* Update the per-objfile information that comes from the bfd, ensuring
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/* Update the per-objfile information that comes from the bfd, ensuring
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that any data that is reference is saved in the per-objfile data
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that any data that is reference is saved in the per-objfile data
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region. */
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region. */
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objfile->obfd = abfd;
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objfile->obfd = abfd;
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if (objfile->name != NULL)
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if (objfile->name != NULL)
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{
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{
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xfree (objfile->name);
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xfree (objfile->name);
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}
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}
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if (abfd != NULL)
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if (abfd != NULL)
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{
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{
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objfile->name = xstrdup (bfd_get_filename (abfd));
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objfile->name = xstrdup (bfd_get_filename (abfd));
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objfile->mtime = bfd_get_mtime (abfd);
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objfile->mtime = bfd_get_mtime (abfd);
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/* Build section table. */
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/* Build section table. */
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if (build_objfile_section_table (objfile))
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if (build_objfile_section_table (objfile))
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{
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{
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error (_("Can't find the file sections in `%s': %s"),
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error (_("Can't find the file sections in `%s': %s"),
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objfile->name, bfd_errmsg (bfd_get_error ()));
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objfile->name, bfd_errmsg (bfd_get_error ()));
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}
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}
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}
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}
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else
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else
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{
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{
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objfile->name = xstrdup ("<<anonymous objfile>>");
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objfile->name = xstrdup ("<<anonymous objfile>>");
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}
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}
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/* Initialize the section indexes for this objfile, so that we can
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/* Initialize the section indexes for this objfile, so that we can
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later detect if they are used w/o being properly assigned to. */
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later detect if they are used w/o being properly assigned to. */
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objfile->sect_index_text = -1;
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objfile->sect_index_text = -1;
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objfile->sect_index_data = -1;
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objfile->sect_index_data = -1;
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objfile->sect_index_bss = -1;
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objfile->sect_index_bss = -1;
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objfile->sect_index_rodata = -1;
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objfile->sect_index_rodata = -1;
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/* We don't yet have a C++-specific namespace symtab. */
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/* We don't yet have a C++-specific namespace symtab. */
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objfile->cp_namespace_symtab = NULL;
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objfile->cp_namespace_symtab = NULL;
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/* Add this file onto the tail of the linked list of other such files. */
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/* Add this file onto the tail of the linked list of other such files. */
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objfile->next = NULL;
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objfile->next = NULL;
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if (object_files == NULL)
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if (object_files == NULL)
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object_files = objfile;
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object_files = objfile;
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else
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else
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{
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{
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for (last_one = object_files;
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for (last_one = object_files;
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last_one->next;
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last_one->next;
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last_one = last_one->next);
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last_one = last_one->next);
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last_one->next = objfile;
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last_one->next = objfile;
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}
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}
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/* Save passed in flag bits. */
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/* Save passed in flag bits. */
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objfile->flags |= flags;
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objfile->flags |= flags;
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return (objfile);
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return (objfile);
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}
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}
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/* Initialize entry point information for this objfile. */
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/* Initialize entry point information for this objfile. */
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void
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void
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init_entry_point_info (struct objfile *objfile)
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init_entry_point_info (struct objfile *objfile)
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{
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{
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/* Save startup file's range of PC addresses to help blockframe.c
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/* Save startup file's range of PC addresses to help blockframe.c
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decide where the bottom of the stack is. */
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decide where the bottom of the stack is. */
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if (bfd_get_file_flags (objfile->obfd) & EXEC_P)
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if (bfd_get_file_flags (objfile->obfd) & EXEC_P)
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{
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{
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/* Executable file -- record its entry point so we'll recognize
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/* Executable file -- record its entry point so we'll recognize
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the startup file because it contains the entry point. */
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the startup file because it contains the entry point. */
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objfile->ei.entry_point = bfd_get_start_address (objfile->obfd);
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objfile->ei.entry_point = bfd_get_start_address (objfile->obfd);
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}
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}
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else
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else
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{
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{
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/* Examination of non-executable.o files. Short-circuit this stuff. */
|
/* Examination of non-executable.o files. Short-circuit this stuff. */
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objfile->ei.entry_point = INVALID_ENTRY_POINT;
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objfile->ei.entry_point = INVALID_ENTRY_POINT;
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}
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}
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}
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}
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|
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/* Get current entry point address. */
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/* Get current entry point address. */
|
|
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CORE_ADDR
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CORE_ADDR
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entry_point_address (void)
|
entry_point_address (void)
|
{
|
{
|
return symfile_objfile ? symfile_objfile->ei.entry_point : 0;
|
return symfile_objfile ? symfile_objfile->ei.entry_point : 0;
|
}
|
}
|
|
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/* Create the terminating entry of OBJFILE's minimal symbol table.
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/* Create the terminating entry of OBJFILE's minimal symbol table.
|
If OBJFILE->msymbols is zero, allocate a single entry from
|
If OBJFILE->msymbols is zero, allocate a single entry from
|
OBJFILE->objfile_obstack; otherwise, just initialize
|
OBJFILE->objfile_obstack; otherwise, just initialize
|
OBJFILE->msymbols[OBJFILE->minimal_symbol_count]. */
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OBJFILE->msymbols[OBJFILE->minimal_symbol_count]. */
|
void
|
void
|
terminate_minimal_symbol_table (struct objfile *objfile)
|
terminate_minimal_symbol_table (struct objfile *objfile)
|
{
|
{
|
if (! objfile->msymbols)
|
if (! objfile->msymbols)
|
objfile->msymbols = ((struct minimal_symbol *)
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objfile->msymbols = ((struct minimal_symbol *)
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obstack_alloc (&objfile->objfile_obstack,
|
obstack_alloc (&objfile->objfile_obstack,
|
sizeof (objfile->msymbols[0])));
|
sizeof (objfile->msymbols[0])));
|
|
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{
|
{
|
struct minimal_symbol *m
|
struct minimal_symbol *m
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= &objfile->msymbols[objfile->minimal_symbol_count];
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= &objfile->msymbols[objfile->minimal_symbol_count];
|
|
|
memset (m, 0, sizeof (*m));
|
memset (m, 0, sizeof (*m));
|
/* Don't rely on these enumeration values being 0's. */
|
/* Don't rely on these enumeration values being 0's. */
|
MSYMBOL_TYPE (m) = mst_unknown;
|
MSYMBOL_TYPE (m) = mst_unknown;
|
SYMBOL_INIT_LANGUAGE_SPECIFIC (m, language_unknown);
|
SYMBOL_INIT_LANGUAGE_SPECIFIC (m, language_unknown);
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Put one object file before a specified on in the global list.
|
/* Put one object file before a specified on in the global list.
|
This can be used to make sure an object file is destroyed before
|
This can be used to make sure an object file is destroyed before
|
another when using ALL_OBJFILES_SAFE to free all objfiles. */
|
another when using ALL_OBJFILES_SAFE to free all objfiles. */
|
void
|
void
|
put_objfile_before (struct objfile *objfile, struct objfile *before_this)
|
put_objfile_before (struct objfile *objfile, struct objfile *before_this)
|
{
|
{
|
struct objfile **objp;
|
struct objfile **objp;
|
|
|
unlink_objfile (objfile);
|
unlink_objfile (objfile);
|
|
|
for (objp = &object_files; *objp != NULL; objp = &((*objp)->next))
|
for (objp = &object_files; *objp != NULL; objp = &((*objp)->next))
|
{
|
{
|
if (*objp == before_this)
|
if (*objp == before_this)
|
{
|
{
|
objfile->next = *objp;
|
objfile->next = *objp;
|
*objp = objfile;
|
*objp = objfile;
|
return;
|
return;
|
}
|
}
|
}
|
}
|
|
|
internal_error (__FILE__, __LINE__,
|
internal_error (__FILE__, __LINE__,
|
_("put_objfile_before: before objfile not in list"));
|
_("put_objfile_before: before objfile not in list"));
|
}
|
}
|
|
|
/* Put OBJFILE at the front of the list. */
|
/* Put OBJFILE at the front of the list. */
|
|
|
void
|
void
|
objfile_to_front (struct objfile *objfile)
|
objfile_to_front (struct objfile *objfile)
|
{
|
{
|
struct objfile **objp;
|
struct objfile **objp;
|
for (objp = &object_files; *objp != NULL; objp = &((*objp)->next))
|
for (objp = &object_files; *objp != NULL; objp = &((*objp)->next))
|
{
|
{
|
if (*objp == objfile)
|
if (*objp == objfile)
|
{
|
{
|
/* Unhook it from where it is. */
|
/* Unhook it from where it is. */
|
*objp = objfile->next;
|
*objp = objfile->next;
|
/* Put it in the front. */
|
/* Put it in the front. */
|
objfile->next = object_files;
|
objfile->next = object_files;
|
object_files = objfile;
|
object_files = objfile;
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Unlink OBJFILE from the list of known objfiles, if it is found in the
|
/* Unlink OBJFILE from the list of known objfiles, if it is found in the
|
list.
|
list.
|
|
|
It is not a bug, or error, to call this function if OBJFILE is not known
|
It is not a bug, or error, to call this function if OBJFILE is not known
|
to be in the current list. This is done in the case of mapped objfiles,
|
to be in the current list. This is done in the case of mapped objfiles,
|
for example, just to ensure that the mapped objfile doesn't appear twice
|
for example, just to ensure that the mapped objfile doesn't appear twice
|
in the list. Since the list is threaded, linking in a mapped objfile
|
in the list. Since the list is threaded, linking in a mapped objfile
|
twice would create a circular list.
|
twice would create a circular list.
|
|
|
If OBJFILE turns out to be in the list, we zap it's NEXT pointer after
|
If OBJFILE turns out to be in the list, we zap it's NEXT pointer after
|
unlinking it, just to ensure that we have completely severed any linkages
|
unlinking it, just to ensure that we have completely severed any linkages
|
between the OBJFILE and the list. */
|
between the OBJFILE and the list. */
|
|
|
void
|
void
|
unlink_objfile (struct objfile *objfile)
|
unlink_objfile (struct objfile *objfile)
|
{
|
{
|
struct objfile **objpp;
|
struct objfile **objpp;
|
|
|
for (objpp = &object_files; *objpp != NULL; objpp = &((*objpp)->next))
|
for (objpp = &object_files; *objpp != NULL; objpp = &((*objpp)->next))
|
{
|
{
|
if (*objpp == objfile)
|
if (*objpp == objfile)
|
{
|
{
|
*objpp = (*objpp)->next;
|
*objpp = (*objpp)->next;
|
objfile->next = NULL;
|
objfile->next = NULL;
|
return;
|
return;
|
}
|
}
|
}
|
}
|
|
|
internal_error (__FILE__, __LINE__,
|
internal_error (__FILE__, __LINE__,
|
_("unlink_objfile: objfile already unlinked"));
|
_("unlink_objfile: objfile already unlinked"));
|
}
|
}
|
|
|
|
|
/* Destroy an objfile and all the symtabs and psymtabs under it. Note
|
/* Destroy an objfile and all the symtabs and psymtabs under it. Note
|
that as much as possible is allocated on the objfile_obstack
|
that as much as possible is allocated on the objfile_obstack
|
so that the memory can be efficiently freed.
|
so that the memory can be efficiently freed.
|
|
|
Things which we do NOT free because they are not in malloc'd memory
|
Things which we do NOT free because they are not in malloc'd memory
|
or not in memory specific to the objfile include:
|
or not in memory specific to the objfile include:
|
|
|
objfile -> sf
|
objfile -> sf
|
|
|
FIXME: If the objfile is using reusable symbol information (via mmalloc),
|
FIXME: If the objfile is using reusable symbol information (via mmalloc),
|
then we need to take into account the fact that more than one process
|
then we need to take into account the fact that more than one process
|
may be using the symbol information at the same time (when mmalloc is
|
may be using the symbol information at the same time (when mmalloc is
|
extended to support cooperative locking). When more than one process
|
extended to support cooperative locking). When more than one process
|
is using the mapped symbol info, we need to be more careful about when
|
is using the mapped symbol info, we need to be more careful about when
|
we free objects in the reusable area. */
|
we free objects in the reusable area. */
|
|
|
void
|
void
|
free_objfile (struct objfile *objfile)
|
free_objfile (struct objfile *objfile)
|
{
|
{
|
if (objfile->separate_debug_objfile)
|
if (objfile->separate_debug_objfile)
|
{
|
{
|
free_objfile (objfile->separate_debug_objfile);
|
free_objfile (objfile->separate_debug_objfile);
|
}
|
}
|
|
|
if (objfile->separate_debug_objfile_backlink)
|
if (objfile->separate_debug_objfile_backlink)
|
{
|
{
|
/* We freed the separate debug file, make sure the base objfile
|
/* We freed the separate debug file, make sure the base objfile
|
doesn't reference it. */
|
doesn't reference it. */
|
objfile->separate_debug_objfile_backlink->separate_debug_objfile = NULL;
|
objfile->separate_debug_objfile_backlink->separate_debug_objfile = NULL;
|
}
|
}
|
|
|
/* Remove any references to this objfile in the global value
|
/* Remove any references to this objfile in the global value
|
lists. */
|
lists. */
|
preserve_values (objfile);
|
preserve_values (objfile);
|
|
|
/* First do any symbol file specific actions required when we are
|
/* First do any symbol file specific actions required when we are
|
finished with a particular symbol file. Note that if the objfile
|
finished with a particular symbol file. Note that if the objfile
|
is using reusable symbol information (via mmalloc) then each of
|
is using reusable symbol information (via mmalloc) then each of
|
these routines is responsible for doing the correct thing, either
|
these routines is responsible for doing the correct thing, either
|
freeing things which are valid only during this particular gdb
|
freeing things which are valid only during this particular gdb
|
execution, or leaving them to be reused during the next one. */
|
execution, or leaving them to be reused during the next one. */
|
|
|
if (objfile->sf != NULL)
|
if (objfile->sf != NULL)
|
{
|
{
|
(*objfile->sf->sym_finish) (objfile);
|
(*objfile->sf->sym_finish) (objfile);
|
}
|
}
|
|
|
/* We always close the bfd. */
|
/* We always close the bfd. */
|
|
|
if (objfile->obfd != NULL)
|
if (objfile->obfd != NULL)
|
{
|
{
|
char *name = bfd_get_filename (objfile->obfd);
|
char *name = bfd_get_filename (objfile->obfd);
|
if (!bfd_close (objfile->obfd))
|
if (!bfd_close (objfile->obfd))
|
warning (_("cannot close \"%s\": %s"),
|
warning (_("cannot close \"%s\": %s"),
|
name, bfd_errmsg (bfd_get_error ()));
|
name, bfd_errmsg (bfd_get_error ()));
|
xfree (name);
|
xfree (name);
|
}
|
}
|
|
|
/* Remove it from the chain of all objfiles. */
|
/* Remove it from the chain of all objfiles. */
|
|
|
unlink_objfile (objfile);
|
unlink_objfile (objfile);
|
|
|
/* If we are going to free the runtime common objfile, mark it
|
/* If we are going to free the runtime common objfile, mark it
|
as unallocated. */
|
as unallocated. */
|
|
|
if (objfile == rt_common_objfile)
|
if (objfile == rt_common_objfile)
|
rt_common_objfile = NULL;
|
rt_common_objfile = NULL;
|
|
|
/* Before the symbol table code was redone to make it easier to
|
/* Before the symbol table code was redone to make it easier to
|
selectively load and remove information particular to a specific
|
selectively load and remove information particular to a specific
|
linkage unit, gdb used to do these things whenever the monolithic
|
linkage unit, gdb used to do these things whenever the monolithic
|
symbol table was blown away. How much still needs to be done
|
symbol table was blown away. How much still needs to be done
|
is unknown, but we play it safe for now and keep each action until
|
is unknown, but we play it safe for now and keep each action until
|
it is shown to be no longer needed. */
|
it is shown to be no longer needed. */
|
|
|
/* Not all our callers call clear_symtab_users (objfile_purge_solibs,
|
/* Not all our callers call clear_symtab_users (objfile_purge_solibs,
|
for example), so we need to call this here. */
|
for example), so we need to call this here. */
|
clear_pc_function_cache ();
|
clear_pc_function_cache ();
|
|
|
/* Clear globals which might have pointed into a removed objfile.
|
/* Clear globals which might have pointed into a removed objfile.
|
FIXME: It's not clear which of these are supposed to persist
|
FIXME: It's not clear which of these are supposed to persist
|
between expressions and which ought to be reset each time. */
|
between expressions and which ought to be reset each time. */
|
expression_context_block = NULL;
|
expression_context_block = NULL;
|
innermost_block = NULL;
|
innermost_block = NULL;
|
|
|
/* Check to see if the current_source_symtab belongs to this objfile,
|
/* Check to see if the current_source_symtab belongs to this objfile,
|
and if so, call clear_current_source_symtab_and_line. */
|
and if so, call clear_current_source_symtab_and_line. */
|
|
|
{
|
{
|
struct symtab_and_line cursal = get_current_source_symtab_and_line ();
|
struct symtab_and_line cursal = get_current_source_symtab_and_line ();
|
struct symtab *s;
|
struct symtab *s;
|
|
|
ALL_OBJFILE_SYMTABS (objfile, s)
|
ALL_OBJFILE_SYMTABS (objfile, s)
|
{
|
{
|
if (s == cursal.symtab)
|
if (s == cursal.symtab)
|
clear_current_source_symtab_and_line ();
|
clear_current_source_symtab_and_line ();
|
}
|
}
|
}
|
}
|
|
|
/* The last thing we do is free the objfile struct itself. */
|
/* The last thing we do is free the objfile struct itself. */
|
|
|
objfile_free_data (objfile);
|
objfile_free_data (objfile);
|
if (objfile->name != NULL)
|
if (objfile->name != NULL)
|
{
|
{
|
xfree (objfile->name);
|
xfree (objfile->name);
|
}
|
}
|
if (objfile->global_psymbols.list)
|
if (objfile->global_psymbols.list)
|
xfree (objfile->global_psymbols.list);
|
xfree (objfile->global_psymbols.list);
|
if (objfile->static_psymbols.list)
|
if (objfile->static_psymbols.list)
|
xfree (objfile->static_psymbols.list);
|
xfree (objfile->static_psymbols.list);
|
/* Free the obstacks for non-reusable objfiles */
|
/* Free the obstacks for non-reusable objfiles */
|
bcache_xfree (objfile->psymbol_cache);
|
bcache_xfree (objfile->psymbol_cache);
|
bcache_xfree (objfile->macro_cache);
|
bcache_xfree (objfile->macro_cache);
|
if (objfile->demangled_names_hash)
|
if (objfile->demangled_names_hash)
|
htab_delete (objfile->demangled_names_hash);
|
htab_delete (objfile->demangled_names_hash);
|
obstack_free (&objfile->objfile_obstack, 0);
|
obstack_free (&objfile->objfile_obstack, 0);
|
xfree (objfile);
|
xfree (objfile);
|
objfile = NULL;
|
objfile = NULL;
|
}
|
}
|
|
|
static void
|
static void
|
do_free_objfile_cleanup (void *obj)
|
do_free_objfile_cleanup (void *obj)
|
{
|
{
|
free_objfile (obj);
|
free_objfile (obj);
|
}
|
}
|
|
|
struct cleanup *
|
struct cleanup *
|
make_cleanup_free_objfile (struct objfile *obj)
|
make_cleanup_free_objfile (struct objfile *obj)
|
{
|
{
|
return make_cleanup (do_free_objfile_cleanup, obj);
|
return make_cleanup (do_free_objfile_cleanup, obj);
|
}
|
}
|
|
|
/* Free all the object files at once and clean up their users. */
|
/* Free all the object files at once and clean up their users. */
|
|
|
void
|
void
|
free_all_objfiles (void)
|
free_all_objfiles (void)
|
{
|
{
|
struct objfile *objfile, *temp;
|
struct objfile *objfile, *temp;
|
|
|
ALL_OBJFILES_SAFE (objfile, temp)
|
ALL_OBJFILES_SAFE (objfile, temp)
|
{
|
{
|
free_objfile (objfile);
|
free_objfile (objfile);
|
}
|
}
|
clear_symtab_users ();
|
clear_symtab_users ();
|
}
|
}
|
|
|
/* Relocate OBJFILE to NEW_OFFSETS. There should be OBJFILE->NUM_SECTIONS
|
/* Relocate OBJFILE to NEW_OFFSETS. There should be OBJFILE->NUM_SECTIONS
|
entries in new_offsets. */
|
entries in new_offsets. */
|
void
|
void
|
objfile_relocate (struct objfile *objfile, struct section_offsets *new_offsets)
|
objfile_relocate (struct objfile *objfile, struct section_offsets *new_offsets)
|
{
|
{
|
struct section_offsets *delta =
|
struct section_offsets *delta =
|
((struct section_offsets *)
|
((struct section_offsets *)
|
alloca (SIZEOF_N_SECTION_OFFSETS (objfile->num_sections)));
|
alloca (SIZEOF_N_SECTION_OFFSETS (objfile->num_sections)));
|
|
|
{
|
{
|
int i;
|
int i;
|
int something_changed = 0;
|
int something_changed = 0;
|
for (i = 0; i < objfile->num_sections; ++i)
|
for (i = 0; i < objfile->num_sections; ++i)
|
{
|
{
|
delta->offsets[i] =
|
delta->offsets[i] =
|
ANOFFSET (new_offsets, i) - ANOFFSET (objfile->section_offsets, i);
|
ANOFFSET (new_offsets, i) - ANOFFSET (objfile->section_offsets, i);
|
if (ANOFFSET (delta, i) != 0)
|
if (ANOFFSET (delta, i) != 0)
|
something_changed = 1;
|
something_changed = 1;
|
}
|
}
|
if (!something_changed)
|
if (!something_changed)
|
return;
|
return;
|
}
|
}
|
|
|
/* OK, get all the symtabs. */
|
/* OK, get all the symtabs. */
|
{
|
{
|
struct symtab *s;
|
struct symtab *s;
|
|
|
ALL_OBJFILE_SYMTABS (objfile, s)
|
ALL_OBJFILE_SYMTABS (objfile, s)
|
{
|
{
|
struct linetable *l;
|
struct linetable *l;
|
struct blockvector *bv;
|
struct blockvector *bv;
|
int i;
|
int i;
|
|
|
/* First the line table. */
|
/* First the line table. */
|
l = LINETABLE (s);
|
l = LINETABLE (s);
|
if (l)
|
if (l)
|
{
|
{
|
for (i = 0; i < l->nitems; ++i)
|
for (i = 0; i < l->nitems; ++i)
|
l->item[i].pc += ANOFFSET (delta, s->block_line_section);
|
l->item[i].pc += ANOFFSET (delta, s->block_line_section);
|
}
|
}
|
|
|
/* Don't relocate a shared blockvector more than once. */
|
/* Don't relocate a shared blockvector more than once. */
|
if (!s->primary)
|
if (!s->primary)
|
continue;
|
continue;
|
|
|
bv = BLOCKVECTOR (s);
|
bv = BLOCKVECTOR (s);
|
for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); ++i)
|
for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); ++i)
|
{
|
{
|
struct block *b;
|
struct block *b;
|
struct symbol *sym;
|
struct symbol *sym;
|
struct dict_iterator iter;
|
struct dict_iterator iter;
|
|
|
b = BLOCKVECTOR_BLOCK (bv, i);
|
b = BLOCKVECTOR_BLOCK (bv, i);
|
BLOCK_START (b) += ANOFFSET (delta, s->block_line_section);
|
BLOCK_START (b) += ANOFFSET (delta, s->block_line_section);
|
BLOCK_END (b) += ANOFFSET (delta, s->block_line_section);
|
BLOCK_END (b) += ANOFFSET (delta, s->block_line_section);
|
if (BLOCKVECTOR_MAP (bv))
|
if (BLOCKVECTOR_MAP (bv))
|
addrmap_relocate (BLOCKVECTOR_MAP (bv),
|
addrmap_relocate (BLOCKVECTOR_MAP (bv),
|
ANOFFSET (delta, s->block_line_section));
|
ANOFFSET (delta, s->block_line_section));
|
|
|
ALL_BLOCK_SYMBOLS (b, iter, sym)
|
ALL_BLOCK_SYMBOLS (b, iter, sym)
|
{
|
{
|
fixup_symbol_section (sym, objfile);
|
fixup_symbol_section (sym, objfile);
|
|
|
/* The RS6000 code from which this was taken skipped
|
/* The RS6000 code from which this was taken skipped
|
any symbols in STRUCT_DOMAIN or UNDEF_DOMAIN.
|
any symbols in STRUCT_DOMAIN or UNDEF_DOMAIN.
|
But I'm leaving out that test, on the theory that
|
But I'm leaving out that test, on the theory that
|
they can't possibly pass the tests below. */
|
they can't possibly pass the tests below. */
|
if ((SYMBOL_CLASS (sym) == LOC_LABEL
|
if ((SYMBOL_CLASS (sym) == LOC_LABEL
|
|| SYMBOL_CLASS (sym) == LOC_STATIC
|
|| SYMBOL_CLASS (sym) == LOC_STATIC
|
|| SYMBOL_CLASS (sym) == LOC_INDIRECT)
|
|| SYMBOL_CLASS (sym) == LOC_INDIRECT)
|
&& SYMBOL_SECTION (sym) >= 0)
|
&& SYMBOL_SECTION (sym) >= 0)
|
{
|
{
|
SYMBOL_VALUE_ADDRESS (sym) +=
|
SYMBOL_VALUE_ADDRESS (sym) +=
|
ANOFFSET (delta, SYMBOL_SECTION (sym));
|
ANOFFSET (delta, SYMBOL_SECTION (sym));
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
{
|
{
|
struct partial_symtab *p;
|
struct partial_symtab *p;
|
|
|
ALL_OBJFILE_PSYMTABS (objfile, p)
|
ALL_OBJFILE_PSYMTABS (objfile, p)
|
{
|
{
|
p->textlow += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
|
p->textlow += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
|
p->texthigh += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
|
p->texthigh += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
|
}
|
}
|
}
|
}
|
|
|
{
|
{
|
struct partial_symbol **psym;
|
struct partial_symbol **psym;
|
|
|
for (psym = objfile->global_psymbols.list;
|
for (psym = objfile->global_psymbols.list;
|
psym < objfile->global_psymbols.next;
|
psym < objfile->global_psymbols.next;
|
psym++)
|
psym++)
|
{
|
{
|
fixup_psymbol_section (*psym, objfile);
|
fixup_psymbol_section (*psym, objfile);
|
if (SYMBOL_SECTION (*psym) >= 0)
|
if (SYMBOL_SECTION (*psym) >= 0)
|
SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta,
|
SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta,
|
SYMBOL_SECTION (*psym));
|
SYMBOL_SECTION (*psym));
|
}
|
}
|
for (psym = objfile->static_psymbols.list;
|
for (psym = objfile->static_psymbols.list;
|
psym < objfile->static_psymbols.next;
|
psym < objfile->static_psymbols.next;
|
psym++)
|
psym++)
|
{
|
{
|
fixup_psymbol_section (*psym, objfile);
|
fixup_psymbol_section (*psym, objfile);
|
if (SYMBOL_SECTION (*psym) >= 0)
|
if (SYMBOL_SECTION (*psym) >= 0)
|
SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta,
|
SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta,
|
SYMBOL_SECTION (*psym));
|
SYMBOL_SECTION (*psym));
|
}
|
}
|
}
|
}
|
|
|
{
|
{
|
struct minimal_symbol *msym;
|
struct minimal_symbol *msym;
|
ALL_OBJFILE_MSYMBOLS (objfile, msym)
|
ALL_OBJFILE_MSYMBOLS (objfile, msym)
|
if (SYMBOL_SECTION (msym) >= 0)
|
if (SYMBOL_SECTION (msym) >= 0)
|
SYMBOL_VALUE_ADDRESS (msym) += ANOFFSET (delta, SYMBOL_SECTION (msym));
|
SYMBOL_VALUE_ADDRESS (msym) += ANOFFSET (delta, SYMBOL_SECTION (msym));
|
}
|
}
|
/* Relocating different sections by different amounts may cause the symbols
|
/* Relocating different sections by different amounts may cause the symbols
|
to be out of order. */
|
to be out of order. */
|
msymbols_sort (objfile);
|
msymbols_sort (objfile);
|
|
|
{
|
{
|
int i;
|
int i;
|
for (i = 0; i < objfile->num_sections; ++i)
|
for (i = 0; i < objfile->num_sections; ++i)
|
(objfile->section_offsets)->offsets[i] = ANOFFSET (new_offsets, i);
|
(objfile->section_offsets)->offsets[i] = ANOFFSET (new_offsets, i);
|
}
|
}
|
|
|
if (objfile->ei.entry_point != ~(CORE_ADDR) 0)
|
if (objfile->ei.entry_point != ~(CORE_ADDR) 0)
|
{
|
{
|
/* Relocate ei.entry_point with its section offset, use SECT_OFF_TEXT
|
/* Relocate ei.entry_point with its section offset, use SECT_OFF_TEXT
|
only as a fallback. */
|
only as a fallback. */
|
struct obj_section *s;
|
struct obj_section *s;
|
s = find_pc_section (objfile->ei.entry_point);
|
s = find_pc_section (objfile->ei.entry_point);
|
if (s)
|
if (s)
|
objfile->ei.entry_point += ANOFFSET (delta, s->the_bfd_section->index);
|
objfile->ei.entry_point += ANOFFSET (delta, s->the_bfd_section->index);
|
else
|
else
|
objfile->ei.entry_point += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
|
objfile->ei.entry_point += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
|
}
|
}
|
|
|
{
|
{
|
struct obj_section *s;
|
struct obj_section *s;
|
bfd *abfd;
|
bfd *abfd;
|
|
|
abfd = objfile->obfd;
|
abfd = objfile->obfd;
|
|
|
ALL_OBJFILE_OSECTIONS (objfile, s)
|
ALL_OBJFILE_OSECTIONS (objfile, s)
|
{
|
{
|
int idx = s->the_bfd_section->index;
|
int idx = s->the_bfd_section->index;
|
|
|
s->addr += ANOFFSET (delta, idx);
|
s->addr += ANOFFSET (delta, idx);
|
s->endaddr += ANOFFSET (delta, idx);
|
s->endaddr += ANOFFSET (delta, idx);
|
}
|
}
|
}
|
}
|
|
|
/* Relocate breakpoints as necessary, after things are relocated. */
|
/* Relocate breakpoints as necessary, after things are relocated. */
|
breakpoint_re_set ();
|
breakpoint_re_set ();
|
}
|
}
|
|
|
/* Many places in gdb want to test just to see if we have any partial
|
/* Many places in gdb want to test just to see if we have any partial
|
symbols available. This function returns zero if none are currently
|
symbols available. This function returns zero if none are currently
|
available, nonzero otherwise. */
|
available, nonzero otherwise. */
|
|
|
int
|
int
|
have_partial_symbols (void)
|
have_partial_symbols (void)
|
{
|
{
|
struct objfile *ofp;
|
struct objfile *ofp;
|
|
|
ALL_OBJFILES (ofp)
|
ALL_OBJFILES (ofp)
|
{
|
{
|
if (ofp->psymtabs != NULL)
|
if (ofp->psymtabs != NULL)
|
{
|
{
|
return 1;
|
return 1;
|
}
|
}
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Many places in gdb want to test just to see if we have any full
|
/* Many places in gdb want to test just to see if we have any full
|
symbols available. This function returns zero if none are currently
|
symbols available. This function returns zero if none are currently
|
available, nonzero otherwise. */
|
available, nonzero otherwise. */
|
|
|
int
|
int
|
have_full_symbols (void)
|
have_full_symbols (void)
|
{
|
{
|
struct objfile *ofp;
|
struct objfile *ofp;
|
|
|
ALL_OBJFILES (ofp)
|
ALL_OBJFILES (ofp)
|
{
|
{
|
if (ofp->symtabs != NULL)
|
if (ofp->symtabs != NULL)
|
{
|
{
|
return 1;
|
return 1;
|
}
|
}
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
|
|
/* This operations deletes all objfile entries that represent solibs that
|
/* This operations deletes all objfile entries that represent solibs that
|
weren't explicitly loaded by the user, via e.g., the add-symbol-file
|
weren't explicitly loaded by the user, via e.g., the add-symbol-file
|
command.
|
command.
|
*/
|
*/
|
void
|
void
|
objfile_purge_solibs (void)
|
objfile_purge_solibs (void)
|
{
|
{
|
struct objfile *objf;
|
struct objfile *objf;
|
struct objfile *temp;
|
struct objfile *temp;
|
|
|
ALL_OBJFILES_SAFE (objf, temp)
|
ALL_OBJFILES_SAFE (objf, temp)
|
{
|
{
|
/* We assume that the solib package has been purged already, or will
|
/* We assume that the solib package has been purged already, or will
|
be soon.
|
be soon.
|
*/
|
*/
|
if (!(objf->flags & OBJF_USERLOADED) && (objf->flags & OBJF_SHARED))
|
if (!(objf->flags & OBJF_USERLOADED) && (objf->flags & OBJF_SHARED))
|
free_objfile (objf);
|
free_objfile (objf);
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Many places in gdb want to test just to see if we have any minimal
|
/* Many places in gdb want to test just to see if we have any minimal
|
symbols available. This function returns zero if none are currently
|
symbols available. This function returns zero if none are currently
|
available, nonzero otherwise. */
|
available, nonzero otherwise. */
|
|
|
int
|
int
|
have_minimal_symbols (void)
|
have_minimal_symbols (void)
|
{
|
{
|
struct objfile *ofp;
|
struct objfile *ofp;
|
|
|
ALL_OBJFILES (ofp)
|
ALL_OBJFILES (ofp)
|
{
|
{
|
if (ofp->minimal_symbol_count > 0)
|
if (ofp->minimal_symbol_count > 0)
|
{
|
{
|
return 1;
|
return 1;
|
}
|
}
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Returns a section whose range includes PC and SECTION, or NULL if
|
/* Returns a section whose range includes PC and SECTION, or NULL if
|
none found. Note the distinction between the return type, struct
|
none found. Note the distinction between the return type, struct
|
obj_section (which is defined in gdb), and the input type "struct
|
obj_section (which is defined in gdb), and the input type "struct
|
bfd_section" (which is a bfd-defined data type). The obj_section
|
bfd_section" (which is a bfd-defined data type). The obj_section
|
contains a pointer to the "struct bfd_section". */
|
contains a pointer to the "struct bfd_section". */
|
|
|
struct obj_section *
|
struct obj_section *
|
find_pc_sect_section (CORE_ADDR pc, struct bfd_section *section)
|
find_pc_sect_section (CORE_ADDR pc, struct bfd_section *section)
|
{
|
{
|
struct obj_section *s;
|
struct obj_section *s;
|
struct objfile *objfile;
|
struct objfile *objfile;
|
|
|
ALL_OBJSECTIONS (objfile, s)
|
ALL_OBJSECTIONS (objfile, s)
|
if ((section == 0 || section == s->the_bfd_section) &&
|
if ((section == 0 || section == s->the_bfd_section) &&
|
s->addr <= pc && pc < s->endaddr)
|
s->addr <= pc && pc < s->endaddr)
|
return (s);
|
return (s);
|
|
|
return (NULL);
|
return (NULL);
|
}
|
}
|
|
|
/* Returns a section whose range includes PC or NULL if none found.
|
/* Returns a section whose range includes PC or NULL if none found.
|
Backward compatibility, no section. */
|
Backward compatibility, no section. */
|
|
|
struct obj_section *
|
struct obj_section *
|
find_pc_section (CORE_ADDR pc)
|
find_pc_section (CORE_ADDR pc)
|
{
|
{
|
return find_pc_sect_section (pc, find_pc_mapped_section (pc));
|
return find_pc_sect_section (pc, find_pc_mapped_section (pc));
|
}
|
}
|
|
|
|
|
/* In SVR4, we recognize a trampoline by it's section name.
|
/* In SVR4, we recognize a trampoline by it's section name.
|
That is, if the pc is in a section named ".plt" then we are in
|
That is, if the pc is in a section named ".plt" then we are in
|
a trampoline. */
|
a trampoline. */
|
|
|
int
|
int
|
in_plt_section (CORE_ADDR pc, char *name)
|
in_plt_section (CORE_ADDR pc, char *name)
|
{
|
{
|
struct obj_section *s;
|
struct obj_section *s;
|
int retval = 0;
|
int retval = 0;
|
|
|
s = find_pc_section (pc);
|
s = find_pc_section (pc);
|
|
|
retval = (s != NULL
|
retval = (s != NULL
|
&& s->the_bfd_section->name != NULL
|
&& s->the_bfd_section->name != NULL
|
&& strcmp (s->the_bfd_section->name, ".plt") == 0);
|
&& strcmp (s->the_bfd_section->name, ".plt") == 0);
|
return (retval);
|
return (retval);
|
}
|
}
|
|
|
|
|
/* Keep a registry of per-objfile data-pointers required by other GDB
|
/* Keep a registry of per-objfile data-pointers required by other GDB
|
modules. */
|
modules. */
|
|
|
struct objfile_data
|
struct objfile_data
|
{
|
{
|
unsigned index;
|
unsigned index;
|
};
|
};
|
|
|
struct objfile_data_registration
|
struct objfile_data_registration
|
{
|
{
|
struct objfile_data *data;
|
struct objfile_data *data;
|
struct objfile_data_registration *next;
|
struct objfile_data_registration *next;
|
};
|
};
|
|
|
struct objfile_data_registry
|
struct objfile_data_registry
|
{
|
{
|
struct objfile_data_registration *registrations;
|
struct objfile_data_registration *registrations;
|
unsigned num_registrations;
|
unsigned num_registrations;
|
};
|
};
|
|
|
static struct objfile_data_registry objfile_data_registry = { NULL, 0 };
|
static struct objfile_data_registry objfile_data_registry = { NULL, 0 };
|
|
|
const struct objfile_data *
|
const struct objfile_data *
|
register_objfile_data (void)
|
register_objfile_data (void)
|
{
|
{
|
struct objfile_data_registration **curr;
|
struct objfile_data_registration **curr;
|
|
|
/* Append new registration. */
|
/* Append new registration. */
|
for (curr = &objfile_data_registry.registrations;
|
for (curr = &objfile_data_registry.registrations;
|
*curr != NULL; curr = &(*curr)->next);
|
*curr != NULL; curr = &(*curr)->next);
|
|
|
*curr = XMALLOC (struct objfile_data_registration);
|
*curr = XMALLOC (struct objfile_data_registration);
|
(*curr)->next = NULL;
|
(*curr)->next = NULL;
|
(*curr)->data = XMALLOC (struct objfile_data);
|
(*curr)->data = XMALLOC (struct objfile_data);
|
(*curr)->data->index = objfile_data_registry.num_registrations++;
|
(*curr)->data->index = objfile_data_registry.num_registrations++;
|
|
|
return (*curr)->data;
|
return (*curr)->data;
|
}
|
}
|
|
|
static void
|
static void
|
objfile_alloc_data (struct objfile *objfile)
|
objfile_alloc_data (struct objfile *objfile)
|
{
|
{
|
gdb_assert (objfile->data == NULL);
|
gdb_assert (objfile->data == NULL);
|
objfile->num_data = objfile_data_registry.num_registrations;
|
objfile->num_data = objfile_data_registry.num_registrations;
|
objfile->data = XCALLOC (objfile->num_data, void *);
|
objfile->data = XCALLOC (objfile->num_data, void *);
|
}
|
}
|
|
|
static void
|
static void
|
objfile_free_data (struct objfile *objfile)
|
objfile_free_data (struct objfile *objfile)
|
{
|
{
|
gdb_assert (objfile->data != NULL);
|
gdb_assert (objfile->data != NULL);
|
xfree (objfile->data);
|
xfree (objfile->data);
|
objfile->data = NULL;
|
objfile->data = NULL;
|
}
|
}
|
|
|
void
|
void
|
clear_objfile_data (struct objfile *objfile)
|
clear_objfile_data (struct objfile *objfile)
|
{
|
{
|
gdb_assert (objfile->data != NULL);
|
gdb_assert (objfile->data != NULL);
|
memset (objfile->data, 0, objfile->num_data * sizeof (void *));
|
memset (objfile->data, 0, objfile->num_data * sizeof (void *));
|
}
|
}
|
|
|
void
|
void
|
set_objfile_data (struct objfile *objfile, const struct objfile_data *data,
|
set_objfile_data (struct objfile *objfile, const struct objfile_data *data,
|
void *value)
|
void *value)
|
{
|
{
|
gdb_assert (data->index < objfile->num_data);
|
gdb_assert (data->index < objfile->num_data);
|
objfile->data[data->index] = value;
|
objfile->data[data->index] = value;
|
}
|
}
|
|
|
void *
|
void *
|
objfile_data (struct objfile *objfile, const struct objfile_data *data)
|
objfile_data (struct objfile *objfile, const struct objfile_data *data)
|
{
|
{
|
gdb_assert (data->index < objfile->num_data);
|
gdb_assert (data->index < objfile->num_data);
|
return objfile->data[data->index];
|
return objfile->data[data->index];
|
}
|
}
|
|
|
