/* GDB routines for manipulating objfiles.
- Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+ 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
Contributed by Cygnus Support, using pieces from other GDB modules.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
/* This file contains support routines for creating, manipulating, and
destroying objfile structures. */
#include "gdb-stabs.h"
#include "target.h"
#include "bcache.h"
+#include "mdebugread.h"
+#include "expression.h"
+#include "parser-defs.h"
#include "gdb_assert.h"
#include <sys/types.h>
#include "breakpoint.h"
#include "block.h"
#include "dictionary.h"
+#include "source.h"
/* Prototypes for local functions */
section.ovly_mapped = 0;
section.addr = bfd_section_vma (abfd, asect);
section.endaddr = section.addr + bfd_section_size (abfd, asect);
- obstack_grow (&objfile->psymbol_obstack, (char *) §ion, sizeof (section));
+ obstack_grow (&objfile->objfile_obstack, (char *) §ion, sizeof (section));
objfile->sections_end = (struct obj_section *) (((unsigned long) objfile->sections_end) + 1);
}
/* objfile->sections can be already set when reading a mapped symbol
file. I believe that we do need to rebuild the section table in
this case (we rebuild other things derived from the bfd), but we
- can't free the old one (it's in the psymbol_obstack). So we just
+ can't free the old one (it's in the objfile_obstack). So we just
waste some memory. */
objfile->sections_end = 0;
bfd_map_over_sections (objfile->obfd, add_to_objfile_sections, (char *) objfile);
objfile->sections = (struct obj_section *)
- obstack_finish (&objfile->psymbol_obstack);
+ obstack_finish (&objfile->objfile_obstack);
objfile->sections_end = objfile->sections + (unsigned long) objfile->sections_end;
return (0);
}
objfile->md = NULL;
objfile->psymbol_cache = bcache_xmalloc ();
objfile->macro_cache = bcache_xmalloc ();
- obstack_specify_allocation (&objfile->psymbol_obstack, 0, 0, xmalloc,
- xfree);
- obstack_specify_allocation (&objfile->symbol_obstack, 0, 0, xmalloc,
- xfree);
- obstack_specify_allocation (&objfile->type_obstack, 0, 0, xmalloc,
- xfree);
-
+ /* We could use obstack_specify_allocation here instead, but
+ gdb_obstack.h specifies the alloc/dealloc functions. */
+ obstack_init (&objfile->objfile_obstack);
terminate_minimal_symbol_table (objfile);
}
objfile->obfd = abfd;
if (objfile->name != NULL)
{
- xmfree (objfile->md, objfile->name);
+ xfree (objfile->name);
}
if (abfd != NULL)
{
- objfile->name = mstrsave (objfile->md, bfd_get_filename (abfd));
+ objfile->name = xstrdup (bfd_get_filename (abfd));
objfile->mtime = bfd_get_mtime (abfd);
/* Build section table. */
if (build_objfile_section_table (objfile))
{
- error ("Can't find the file sections in `%s': %s",
+ error (_("Can't find the file sections in `%s': %s"),
objfile->name, bfd_errmsg (bfd_get_error ()));
}
}
else
{
- objfile->name =
mstrsave (objfile->md, "<<anonymous objfile>>");
+ objfile->name =
xstrdup ("<<anonymous objfile>>");
}
/* Initialize the section indexes for this objfile, so that we can
return (objfile);
}
+/* Initialize entry point information for this objfile. */
+
+void
+init_entry_point_info (struct objfile *objfile)
+{
+ /* Save startup file's range of PC addresses to help blockframe.c
+ decide where the bottom of the stack is. */
+
+ if (bfd_get_file_flags (objfile->obfd) & EXEC_P)
+ {
+ /* Executable file -- record its entry point so we'll recognize
+ the startup file because it contains the entry point. */
+ objfile->ei.entry_point = bfd_get_start_address (objfile->obfd);
+ }
+ else
+ {
+ /* Examination of non-executable.o files. Short-circuit this stuff. */
+ objfile->ei.entry_point = INVALID_ENTRY_POINT;
+ }
+}
+
+/* Get current entry point address. */
+
+CORE_ADDR
+entry_point_address (void)
+{
+ return symfile_objfile ? symfile_objfile->ei.entry_point : 0;
+}
/* Create the terminating entry of OBJFILE's minimal symbol table.
If OBJFILE->msymbols is zero, allocate a single entry from
- OBJFILE->symbol_obstack; otherwise, just initialize
+ OBJFILE->objfile_obstack; otherwise, just initialize
OBJFILE->msymbols[OBJFILE->minimal_symbol_count]. */
void
terminate_minimal_symbol_table (struct objfile *objfile)
{
if (! objfile->msymbols)
objfile->msymbols = ((struct minimal_symbol *)
- obstack_alloc (&objfile->symbol_obstack,
+ obstack_alloc (&objfile->objfile_obstack,
sizeof (objfile->msymbols[0])));
{
= &objfile->msymbols[objfile->minimal_symbol_count];
memset (m, 0, sizeof (*m));
- DEPRECATED_SYMBOL_NAME (m) = NULL;
- SYMBOL_VALUE_ADDRESS (m) = 0;
- MSYMBOL_INFO (m) = NULL;
- MSYMBOL_SIZE (m) = 0;
+ /* Don't rely on these enumeration values being 0's. */
MSYMBOL_TYPE (m) = mst_unknown;
SYMBOL_INIT_LANGUAGE_SPECIFIC (m, language_unknown);
}
}
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. */
}
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
- that as much as possible is allocated on the symbol_obstack and
- psymbol_obstack, so that the memory can be efficiently freed.
+ that as much as possible is allocated on the objfile_obstack
+ so that the memory can be efficiently freed.
Things which we do NOT free because they are not in malloc'd memory
or not in memory specific to the objfile include:
objfile->separate_debug_objfile_backlink->separate_debug_objfile = NULL;
}
+ /* Remove any references to this objfile in the global value
+ lists. */
+ preserve_values (objfile);
+
/* First do any symbol file specific actions required when we are
finished with a particular symbol file. Note that if the objfile
is using reusable symbol information (via mmalloc) then each of
{
char *name = bfd_get_filename (objfile->obfd);
if (!bfd_close (objfile->obfd))
- warning ("cannot close \"%s\": %s",
+ warning (_("cannot close \"%s\": %s"),
name, bfd_errmsg (bfd_get_error ()));
xfree (name);
}
is unknown, but we play it safe for now and keep each action until
it is shown to be no longer needed. */
- /* I *think* all our callers call clear_symtab_users. If so, no need
- to call this here. */
+ /* Not all our callers call clear_symtab_users (objfile_purge_solibs,
+ for example), so we need to call this here. */
clear_pc_function_cache ();
+ /* Clear globals which might have pointed into a removed objfile.
+ FIXME: It's not clear which of these are supposed to persist
+ between expressions and which ought to be reset each time. */
+ expression_context_block = NULL;
+ innermost_block = NULL;
+
+ /* Check to see if the current_source_symtab belongs to this objfile,
+ and if so, call clear_current_source_symtab_and_line. */
+
+ {
+ struct symtab_and_line cursal = get_current_source_symtab_and_line ();
+ struct symtab *s;
+
+ ALL_OBJFILE_SYMTABS (objfile, s)
+ {
+ if (s == cursal.symtab)
+ clear_current_source_symtab_and_line ();
+ }
+ }
+
/* The last thing we do is free the objfile struct itself. */
objfile_free_data (objfile);
if (objfile->name != NULL)
{
- xmfree (objfile->md, objfile->name);
+ xfree (objfile->name);
}
if (objfile->global_psymbols.list)
- xmfree (objfile->md, objfile->global_psymbols.list);
+ xfree (objfile->global_psymbols.list);
if (objfile->static_psymbols.list)
- xmfree (objfile->md, objfile->static_psymbols.list);
+ xfree (objfile->static_psymbols.list);
/* Free the obstacks for non-reusable objfiles */
bcache_xfree (objfile->psymbol_cache);
bcache_xfree (objfile->macro_cache);
if (objfile->demangled_names_hash)
htab_delete (objfile->demangled_names_hash);
- obstack_free (&objfile->psymbol_obstack, 0);
- obstack_free (&objfile->symbol_obstack, 0);
- obstack_free (&objfile->type_obstack, 0);
- xmfree (objfile->md, objfile);
+ obstack_free (&objfile->objfile_obstack, 0);
+ xfree (objfile);
objfile = NULL;
}
SYMBOL_VALUE_ADDRESS (sym) +=
ANOFFSET (delta, SYMBOL_SECTION (sym));
}
-#ifdef MIPS_EFI_SYMBOL_NAME
- /* Relocate Extra Function Info for ecoff. */
-
- else if (SYMBOL_CLASS (sym) == LOC_CONST
- && SYMBOL_DOMAIN (sym) == LABEL_DOMAIN
- && strcmp (DEPRECATED_SYMBOL_NAME (sym), MIPS_EFI_SYMBOL_NAME) == 0)
- ecoff_relocate_efi (sym, ANOFFSET (delta,
- s->block_line_section));
-#endif
}
}
}
}
}
- if (objfile->ei.entry_func_lowpc != INVALID_ENTRY_LOWPC)
- {
- objfile->ei.entry_func_lowpc += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
- objfile->ei.entry_func_highpc += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
- }
-
- if (objfile->ei.deprecated_entry_file_lowpc != INVALID_ENTRY_LOWPC)
- {
- objfile->ei.deprecated_entry_file_lowpc += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
- objfile->ei.deprecated_entry_file_highpc += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
- }
-
- if (objfile->ei.main_func_lowpc != INVALID_ENTRY_LOWPC)
- {
- objfile->ei.main_func_lowpc += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
- objfile->ei.main_func_highpc += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
- }
-
/* Relocate breakpoints as necessary, after things are relocated. */
breakpoint_re_set ();
}
projects / binutils.git / blobdiff