/* GDB routines for manipulating objfiles.
- Copyright 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+ Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001
+ Free Software Foundation, Inc.
Contributed by Cygnus Support, using pieces from other GDB modules.
This file is part of GDB.
#if defined(USE_MMALLOC) && defined(HAVE_MMAP)
-static int
-open_existing_mapped_file PARAMS ((char *, long, int));
+static int open_existing_mapped_file (char *, long, int);
-static int
-open_mapped_file PARAMS ((char *filename, long mtime, int flags));
+static int open_mapped_file (char *filename, long mtime, int flags);
-static PTR
- map_to_file PARAMS ((int));
+static PTR map_to_file (int);
#endif /* defined(USE_MMALLOC) && defined(HAVE_MMAP) */
-static void
-add_to_objfile_sections PARAMS ((bfd *, sec_ptr, PTR));
+static void add_to_objfile_sections (bfd *, sec_ptr, PTR);
/* Externally visible variables that are owned by this module.
See declarations in objfile.h for more info. */
the end of the table (objfile->sections_end). */
static void
-add_to_objfile_sections (abfd, asect, objfile_p_char)
- bfd *abfd;
- sec_ptr asect;
- PTR objfile_p_char;
+add_to_objfile_sections (bfd *abfd, sec_ptr asect, PTR objfile_p_char)
{
struct objfile *objfile = (struct objfile *) objfile_p_char;
struct obj_section section;
we are building the table, we're pretty much hosed. */
int
-build_objfile_section_table (objfile)
- struct objfile *objfile;
+build_objfile_section_table (struct objfile *objfile)
{
/* objfile->sections can be already set when reading a mapped symbol
file. I believe that we do need to rebuild the section table in
member. */
struct objfile *
-allocate_objfile (abfd, flags)
- bfd *abfd;
- int flags;
+allocate_objfile (bfd *abfd, int flags)
{
struct objfile *objfile = NULL;
struct objfile *last_one = NULL;
memset (objfile, 0, sizeof (struct objfile));
objfile->md = NULL;
obstack_specify_allocation (&objfile->psymbol_cache.cache, 0, 0,
- xmalloc, free);
+ xmalloc, xfree);
obstack_specify_allocation (&objfile->psymbol_obstack, 0, 0, xmalloc,
- free);
+ xfree);
obstack_specify_allocation (&objfile->symbol_obstack, 0, 0, xmalloc,
- free);
+ xfree);
obstack_specify_allocation (&objfile->type_obstack, 0, 0, xmalloc,
- free);
+ xfree);
flags &= ~OBJF_MAPPED;
}
}
}
+ /* Initialize the section indexes for this objfile, so that we can
+ later detect if they are used w/o being properly assigned to. */
+
+ objfile->sect_index_text = -1;
+ objfile->sect_index_data = -1;
+ objfile->sect_index_bss = -1;
+ objfile->sect_index_rodata = -1;
+
/* Add this file onto the tail of the linked list of other such files. */
objfile->next = NULL;
/* Put OBJFILE at the front of the list. */
void
-objfile_to_front (objfile)
- struct objfile *objfile;
+objfile_to_front (struct objfile *objfile)
{
struct objfile **objp;
for (objp = &object_files; *objp != NULL; objp = &((*objp)->next))
between the OBJFILE and the list. */
void
-unlink_objfile (objfile)
- struct objfile *objfile;
+unlink_objfile (struct objfile *objfile)
{
struct objfile **objpp;
{
*objpp = (*objpp)->next;
objfile->next = NULL;
- break;
+ return;
}
}
+
+ internal_error (__FILE__, __LINE__,
+ "unlink_objfile: objfile already unlinked");
}
we free objects in the reusable area. */
void
-free_objfile (objfile)
- struct objfile *objfile;
+free_objfile (struct objfile *objfile)
{
/* First do any symbol file specific actions required when we are
finished with a particular symbol file. Note that if the objfile
if (!bfd_close (objfile->obfd))
warning ("cannot close \"%s\": %s",
name, bfd_errmsg (bfd_get_error ()));
- free (name);
+ xfree (name);
}
/* Remove it from the chain of all objfiles. */
is unknown, but we play it safe for now and keep each action until
it is shown to be no longer needed. */
-#if defined (CLEAR_SOLIB)
- CLEAR_SOLIB ();
- /* CLEAR_SOLIB closes the bfd's for any shared libraries. But
- the to_sections for a core file might refer to those bfd's. So
- detach any core file. */
- {
- struct target_ops *t = find_core_target ();
- if (t != NULL)
- (t->to_detach) (NULL, 0);
- }
-#endif
/* I *think* all our callers call clear_symtab_users. If so, no need
to call this here. */
clear_pc_function_cache ();
}
}
+static void
+do_free_objfile_cleanup (void *obj)
+{
+ free_objfile (obj);
+}
+
+struct cleanup *
+make_cleanup_free_objfile (struct objfile *obj)
+{
+ return make_cleanup (do_free_objfile_cleanup, obj);
+}
/* Free all the object files at once and clean up their users. */
void
-free_all_objfiles ()
+free_all_objfiles (void)
{
struct objfile *objfile, *temp;
/* Relocate OBJFILE to NEW_OFFSETS. There should be OBJFILE->NUM_SECTIONS
entries in new_offsets. */
void
-objfile_relocate (objfile, new_offsets)
- 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 *) alloca (SIZEOF_SECTION_OFFSETS);
int something_changed = 0;
for (i = 0; i < objfile->num_sections; ++i)
{
- ANOFFSET (delta, i) =
+ delta->offsets[i] =
ANOFFSET (new_offsets, i) - ANOFFSET (objfile->section_offsets, i);
if (ANOFFSET (delta, i) != 0)
something_changed = 1;
for (j = 0; j < BLOCK_NSYMS (b); ++j)
{
struct symbol *sym = BLOCK_SYM (b, j);
+
+ fixup_symbol_section (sym, objfile);
+
/* The RS6000 code from which this was taken skipped
any symbols in STRUCT_NAMESPACE or UNDEF_NAMESPACE.
But I'm leaving out that test, on the theory that
else if (SYMBOL_CLASS (sym) == LOC_CONST
&& SYMBOL_NAMESPACE (sym) == LABEL_NAMESPACE
- && STRCMP (SYMBOL_NAME (sym), MIPS_EFI_SYMBOL_NAME) == 0)
+ && strcmp (SYMBOL_NAME (sym), MIPS_EFI_SYMBOL_NAME) == 0)
ecoff_relocate_efi (sym, ANOFFSET (delta,
s->block_line_section));
#endif
ALL_OBJFILE_PSYMTABS (objfile, p)
{
- p->textlow += ANOFFSET (delta, SECT_OFF_TEXT);
- p->texthigh += ANOFFSET (delta, SECT_OFF_TEXT);
+ p->textlow += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
+ p->texthigh += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
}
}
for (psym = objfile->global_psymbols.list;
psym < objfile->global_psymbols.next;
psym++)
- if (SYMBOL_SECTION (*psym) >= 0)
- SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta,
- SYMBOL_SECTION (*psym));
+ {
+ fixup_psymbol_section (*psym, objfile);
+ if (SYMBOL_SECTION (*psym) >= 0)
+ SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta,
+ SYMBOL_SECTION (*psym));
+ }
for (psym = objfile->static_psymbols.list;
psym < objfile->static_psymbols.next;
psym++)
- if (SYMBOL_SECTION (*psym) >= 0)
- SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta,
- SYMBOL_SECTION (*psym));
+ {
+ fixup_psymbol_section (*psym, objfile);
+ if (SYMBOL_SECTION (*psym) >= 0)
+ SYMBOL_VALUE_ADDRESS (*psym) += ANOFFSET (delta,
+ SYMBOL_SECTION (*psym));
+ }
}
{
{
int i;
for (i = 0; i < objfile->num_sections; ++i)
- ANOFFSET (objfile->section_offsets, i) = ANOFFSET (new_offsets, i);
+ (objfile->section_offsets)->offsets[i] = ANOFFSET (new_offsets, i);
}
+ if (objfile->ei.entry_point != ~(CORE_ADDR) 0)
+ {
+ /* Relocate ei.entry_point with its section offset, use SECT_OFF_TEXT
+ only as a fallback. */
+ struct obj_section *s;
+ s = find_pc_section (objfile->ei.entry_point);
+ if (s)
+ objfile->ei.entry_point += ANOFFSET (delta, s->the_bfd_section->index);
+ else
+ objfile->ei.entry_point += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
+ }
+
{
struct obj_section *s;
bfd *abfd;
ALL_OBJFILE_OSECTIONS (objfile, s)
{
- flagword flags;
-
- flags = bfd_get_section_flags (abfd, s->the_bfd_section);
-
- if (flags & SEC_CODE)
- {
- s->addr += ANOFFSET (delta, SECT_OFF_TEXT);
- s->endaddr += ANOFFSET (delta, SECT_OFF_TEXT);
- }
- else if (flags & (SEC_DATA | SEC_LOAD))
- {
- s->addr += ANOFFSET (delta, SECT_OFF_DATA);
- s->endaddr += ANOFFSET (delta, SECT_OFF_DATA);
- }
- else if (flags & SEC_ALLOC)
- {
- s->addr += ANOFFSET (delta, SECT_OFF_BSS);
- s->endaddr += ANOFFSET (delta, SECT_OFF_BSS);
- }
+ int idx = s->the_bfd_section->index;
+
+ s->addr += ANOFFSET (delta, idx);
+ s->endaddr += ANOFFSET (delta, idx);
}
}
- if (objfile->ei.entry_point != ~(CORE_ADDR) 0)
- objfile->ei.entry_point += ANOFFSET (delta, SECT_OFF_TEXT);
-
if (objfile->ei.entry_func_lowpc != INVALID_ENTRY_LOWPC)
{
- objfile->ei.entry_func_lowpc += ANOFFSET (delta, SECT_OFF_TEXT);
- objfile->ei.entry_func_highpc += ANOFFSET (delta, SECT_OFF_TEXT);
+ 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.entry_file_lowpc != INVALID_ENTRY_LOWPC)
{
- objfile->ei.entry_file_lowpc += ANOFFSET (delta, SECT_OFF_TEXT);
- objfile->ei.entry_file_highpc += ANOFFSET (delta, SECT_OFF_TEXT);
+ objfile->ei.entry_file_lowpc += ANOFFSET (delta, SECT_OFF_TEXT (objfile));
+ objfile->ei.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->ei.main_func_highpc += ANOFFSET (delta, SECT_OFF_TEXT);
+ 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. */
available, nonzero otherwise. */
int
-have_partial_symbols ()
+have_partial_symbols (void)
{
struct objfile *ofp;
available, nonzero otherwise. */
int
-have_full_symbols ()
+have_full_symbols (void)
{
struct objfile *ofp;
command.
*/
void
-objfile_purge_solibs ()
+objfile_purge_solibs (void)
{
struct objfile *objf;
struct objfile *temp;
available, nonzero otherwise. */
int
-have_minimal_symbols ()
+have_minimal_symbols (void)
{
struct objfile *ofp;
Otherwise, returns the open file descriptor. */
static int
-open_existing_mapped_file (symsfilename, mtime, flags)
- char *symsfilename;
- long mtime;
- int flags;
+open_existing_mapped_file (char *symsfilename, long mtime, int flags)
{
int fd = -1;
struct stat sbuf;
/bin for example). */
static int
-open_mapped_file (filename, mtime, flags)
- char *filename;
- long mtime;
- int flags;
+open_mapped_file (char *filename, long mtime, int flags)
{
int fd;
char *symsfilename;
/* First try to open an existing file in the current directory, and
then try the directory where the symbol file is located. */
- symsfilename = concat ("./", basename (filename), ".syms", (char *) NULL);
+ symsfilename = concat ("./", lbasename (filename), ".syms", (char *) NULL);
if ((fd = open_existing_mapped_file (symsfilename, mtime, flags)) < 0)
{
- free (symsfilename);
+ xfree (symsfilename);
symsfilename = concat (filename, ".syms", (char *) NULL);
fd = open_existing_mapped_file (symsfilename, mtime, flags);
}
if ((fd < 0) && (flags & OBJF_MAPPED))
{
- free (symsfilename);
- symsfilename = concat ("./", basename (filename), ".syms",
+ xfree (symsfilename);
+ symsfilename = concat ("./", lbasename (filename), ".syms",
(char *) NULL);
if ((fd = open (symsfilename, O_RDWR | O_CREAT | O_TRUNC, 0666)) < 0)
{
}
}
- free (symsfilename);
+ xfree (symsfilename);
return (fd);
}
static PTR
-map_to_file (fd)
- int fd;
+map_to_file (int fd)
{
PTR md;
CORE_ADDR mapto;
contains a pointer to the bfd struct sec section. */
struct obj_section *
-find_pc_sect_section (pc, section)
- CORE_ADDR pc;
- struct sec *section;
+find_pc_sect_section (CORE_ADDR pc, struct sec *section)
{
struct obj_section *s;
struct objfile *objfile;
Backward compatibility, no section. */
struct obj_section *
-find_pc_section (pc)
- CORE_ADDR pc;
+find_pc_section (CORE_ADDR pc)
{
return find_pc_sect_section (pc, find_pc_mapped_section (pc));
}
a trampoline. */
int
-in_plt_section (pc, name)
- CORE_ADDR pc;
- char *name;
+in_plt_section (CORE_ADDR pc, char *name)
{
struct obj_section *s;
int retval = 0;
return zero. */
int
-is_in_import_list (name, objfile)
- char *name;
- struct objfile *objfile;
+is_in_import_list (char *name, struct objfile *objfile)
{
register int i;