/* 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.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-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. */
+ 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. */
/* This file contains support routines for creating, manipulating, and
destroying objfile structures. */
#include "obstack.h"
#include "gdb_string.h"
+#include "breakpoint.h"
+
/* Prototypes for local functions */
#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 mapped));
+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) */
+#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. */
-struct objfile *object_files; /* Linked list of all objfiles */
+struct objfile *object_files; /* Linked list of all objfiles */
struct objfile *current_objfile; /* For symbol file being read in */
struct objfile *symfile_objfile; /* Main symbol table loaded from */
struct objfile *rt_common_objfile; /* For runtime common symbols */
-int mapped_symbol_files; /* Try to use mapped symbol files */
+int mapped_symbol_files; /* Try to use mapped symbol files */
/* Locate all mappable sections of a BFD file.
objfile_p_char is a char * to get it through
#define TARGET_KEEP_SECTION(ASECT) 0
#endif
+/* Called via bfd_map_over_sections to build up the section table that
+ the objfile references. The objfile contains pointers to the start
+ of the table (objfile->sections) and to the first location after
+ 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;
aflag = bfd_get_section_flags (abfd, asect);
- if (!(aflag & SEC_ALLOC) && !(TARGET_KEEP_SECTION(asect)))
+ if (!(aflag & SEC_ALLOC) && !(TARGET_KEEP_SECTION (asect)))
return;
if (0 == bfd_section_size (abfd, asect))
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->psymbol_obstack, (char *) §ion, sizeof (section));
objfile->sections_end = (struct obj_section *) (((unsigned long) objfile->sections_end) + 1);
}
/* Builds a section table for OBJFILE.
Returns 0 if OK, 1 on error (in which case bfd_error contains the
- error). */
+ error).
+
+ Note that while we are building the table, which goes into the
+ psymbol obstack, we hijack the sections_end pointer to instead hold
+ a count of the number of sections. When bfd_map_over_sections
+ returns, this count is used to compute the pointer to the end of
+ the sections table, which then overwrites the count.
+
+ Also note that the OFFSET and OVLY_MAPPED in each table entry
+ are initialized to zero.
+
+ Also note that if anything else writes to the psymbol obstack while
+ 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
waste some memory. */
objfile->sections_end = 0;
- bfd_map_over_sections (objfile->obfd, add_to_objfile_sections, (char *)objfile);
+ bfd_map_over_sections (objfile->obfd, add_to_objfile_sections, (char *) objfile);
objfile->sections = (struct obj_section *)
obstack_finish (&objfile->psymbol_obstack);
objfile->sections_end = objfile->sections + (unsigned long) objfile->sections_end;
- return(0);
+ return (0);
}
-/* Given a pointer to an initialized bfd (ABFD) and a flag that indicates
- whether or not an objfile is to be mapped (MAPPED), allocate a new objfile
- struct, fill it in as best we can, link it into the list of all known
- objfiles, and return a pointer to the new objfile struct.
-
- USER_LOADED is simply recorded in the objfile. This record offers a way for
- run_command to remove old objfile entries which are no longer valid (i.e.,
- are associated with an old inferior), but to preserve ones that the user
- explicitly loaded via the add-symbol-file command.
+/* Given a pointer to an initialized bfd (ABFD) and some flag bits
+ allocate a new objfile struct, fill it in as best we can, link it
+ into the list of all known objfiles, and return a pointer to the
+ new objfile struct.
- IS_SOLIB is also simply recorded in the objfile. */
+ The FLAGS word contains various bits (OBJF_*) that can be taken as
+ requests for specific operations, like trying to open a mapped
+ version of the objfile (OBJF_MAPPED). Other bits like
+ OBJF_SHARED are simply copied through to the new objfile flags
+ member. */
struct objfile *
-allocate_objfile (abfd, mapped, user_loaded, is_solib)
- bfd *abfd;
- int mapped;
- int user_loaded;
- int is_solib;
+allocate_objfile (bfd *abfd, int flags)
{
struct objfile *objfile = NULL;
struct objfile *last_one = NULL;
- mapped |= mapped_symbol_files;
+ if (mapped_symbol_files)
+ flags |= OBJF_MAPPED;
#if defined(USE_MMALLOC) && defined(HAVE_MMAP)
if (abfd != NULL)
- {
+ {
- /* If we can support mapped symbol files, try to open/reopen the
- mapped file that corresponds to the file from which we wish to
- read symbols. If the objfile is to be mapped, we must malloc
- the structure itself using the mmap version, and arrange that
- all memory allocation for the objfile uses the mmap routines.
- If we are reusing an existing mapped file, from which we get
- our objfile pointer, we have to make sure that we update the
- pointers to the alloc/free functions in the obstack, in case
- these functions have moved within the current gdb. */
-
- int fd;
-
- fd = open_mapped_file (bfd_get_filename (abfd), bfd_get_mtime (abfd),
- mapped);
- if (fd >= 0)
- {
- PTR md;
-
- if ((md = map_to_file (fd)) == NULL)
- {
- close (fd);
- }
- else if ((objfile = (struct objfile *) mmalloc_getkey (md, 0)) != NULL)
- {
- /* Update memory corruption handler function addresses. */
- init_malloc (md);
- objfile -> md = md;
- objfile -> mmfd = fd;
- /* Update pointers to functions to *our* copies */
- obstack_chunkfun (&objfile -> psymbol_cache.cache, xmmalloc);
- obstack_freefun (&objfile -> psymbol_cache.cache, mfree);
- obstack_chunkfun (&objfile -> psymbol_obstack, xmmalloc);
- obstack_freefun (&objfile -> psymbol_obstack, mfree);
- obstack_chunkfun (&objfile -> symbol_obstack, xmmalloc);
- obstack_freefun (&objfile -> symbol_obstack, mfree);
- obstack_chunkfun (&objfile -> type_obstack, xmmalloc);
- obstack_freefun (&objfile -> type_obstack, mfree);
- /* If already in objfile list, unlink it. */
- unlink_objfile (objfile);
- /* Forget things specific to a particular gdb, may have changed. */
- objfile -> sf = NULL;
- }
- else
- {
-
- /* Set up to detect internal memory corruption. MUST be
- done before the first malloc. See comments in
- init_malloc() and mmcheck(). */
-
- init_malloc (md);
-
- objfile = (struct objfile *)
- xmmalloc (md, sizeof (struct objfile));
- memset (objfile, 0, sizeof (struct objfile));
- objfile -> md = md;
- objfile -> mmfd = fd;
- objfile -> flags |= OBJF_MAPPED;
- mmalloc_setkey (objfile -> md, 0, objfile);
- obstack_specify_allocation_with_arg (&objfile -> psymbol_cache.cache,
- 0, 0, xmmalloc, mfree,
- objfile -> md);
- obstack_specify_allocation_with_arg (&objfile -> psymbol_obstack,
- 0, 0, xmmalloc, mfree,
- objfile -> md);
- obstack_specify_allocation_with_arg (&objfile -> symbol_obstack,
- 0, 0, xmmalloc, mfree,
- objfile -> md);
- obstack_specify_allocation_with_arg (&objfile -> type_obstack,
- 0, 0, xmmalloc, mfree,
- objfile -> md);
- }
- }
+ /* If we can support mapped symbol files, try to open/reopen the
+ mapped file that corresponds to the file from which we wish to
+ read symbols. If the objfile is to be mapped, we must malloc
+ the structure itself using the mmap version, and arrange that
+ all memory allocation for the objfile uses the mmap routines.
+ If we are reusing an existing mapped file, from which we get
+ our objfile pointer, we have to make sure that we update the
+ pointers to the alloc/free functions in the obstack, in case
+ these functions have moved within the current gdb. */
+
+ int fd;
+
+ fd = open_mapped_file (bfd_get_filename (abfd), bfd_get_mtime (abfd),
+ flags);
+ if (fd >= 0)
+ {
+ PTR md;
- if (mapped && (objfile == NULL))
- {
- warning ("symbol table for '%s' will not be mapped",
- bfd_get_filename (abfd));
- }
- }
-#else /* !defined(USE_MMALLOC) || !defined(HAVE_MMAP) */
+ if ((md = map_to_file (fd)) == NULL)
+ {
+ close (fd);
+ }
+ else if ((objfile = (struct objfile *) mmalloc_getkey (md, 0)) != NULL)
+ {
+ /* Update memory corruption handler function addresses. */
+ init_malloc (md);
+ objfile->md = md;
+ objfile->mmfd = fd;
+ /* Update pointers to functions to *our* copies */
+ obstack_chunkfun (&objfile->psymbol_cache.cache, xmmalloc);
+ obstack_freefun (&objfile->psymbol_cache.cache, mfree);
+ obstack_chunkfun (&objfile->psymbol_obstack, xmmalloc);
+ obstack_freefun (&objfile->psymbol_obstack, mfree);
+ obstack_chunkfun (&objfile->symbol_obstack, xmmalloc);
+ obstack_freefun (&objfile->symbol_obstack, mfree);
+ obstack_chunkfun (&objfile->type_obstack, xmmalloc);
+ obstack_freefun (&objfile->type_obstack, mfree);
+ /* If already in objfile list, unlink it. */
+ unlink_objfile (objfile);
+ /* Forget things specific to a particular gdb, may have changed. */
+ objfile->sf = NULL;
+ }
+ else
+ {
- if (mapped)
+ /* Set up to detect internal memory corruption. MUST be
+ done before the first malloc. See comments in
+ init_malloc() and mmcheck(). */
+
+ init_malloc (md);
+
+ objfile = (struct objfile *)
+ xmmalloc (md, sizeof (struct objfile));
+ memset (objfile, 0, sizeof (struct objfile));
+ objfile->md = md;
+ objfile->mmfd = fd;
+ objfile->flags |= OBJF_MAPPED;
+ mmalloc_setkey (objfile->md, 0, objfile);
+ obstack_specify_allocation_with_arg (&objfile->psymbol_cache.cache,
+ 0, 0, xmmalloc, mfree,
+ objfile->md);
+ obstack_specify_allocation_with_arg (&objfile->psymbol_obstack,
+ 0, 0, xmmalloc, mfree,
+ objfile->md);
+ obstack_specify_allocation_with_arg (&objfile->symbol_obstack,
+ 0, 0, xmmalloc, mfree,
+ objfile->md);
+ obstack_specify_allocation_with_arg (&objfile->type_obstack,
+ 0, 0, xmmalloc, mfree,
+ objfile->md);
+ }
+ }
+
+ if ((flags & OBJF_MAPPED) && (objfile == NULL))
+ {
+ warning ("symbol table for '%s' will not be mapped",
+ bfd_get_filename (abfd));
+ flags &= ~OBJF_MAPPED;
+ }
+ }
+#else /* !defined(USE_MMALLOC) || !defined(HAVE_MMAP) */
+
+ if (flags & OBJF_MAPPED)
{
warning ("mapped symbol tables are not supported on this machine; missing or broken mmap().");
/* Turn off the global flag so we don't try to do mapped symbol tables
- any more, which shuts up gdb unless the user specifically gives the
- "mapped" keyword again. */
+ any more, which shuts up gdb unless the user specifically gives the
+ "mapped" keyword again. */
mapped_symbol_files = 0;
+ flags &= ~OBJF_MAPPED;
}
-#endif /* defined(USE_MMALLOC) && defined(HAVE_MMAP) */
+#endif /* defined(USE_MMALLOC) && defined(HAVE_MMAP) */
/* If we don't support mapped symbol files, didn't ask for the file to be
mapped, or failed to open the mapped file for some reason, then revert
{
objfile = (struct objfile *) xmalloc (sizeof (struct objfile));
memset (objfile, 0, sizeof (struct objfile));
- objfile -> md = NULL;
- obstack_specify_allocation (&objfile -> psymbol_cache.cache, 0, 0,
- xmalloc, free);
- obstack_specify_allocation (&objfile -> psymbol_obstack, 0, 0, xmalloc,
- free);
- obstack_specify_allocation (&objfile -> symbol_obstack, 0, 0, xmalloc,
- free);
- obstack_specify_allocation (&objfile -> type_obstack, 0, 0, xmalloc,
- free);
+ objfile->md = NULL;
+ obstack_specify_allocation (&objfile->psymbol_cache.cache, 0, 0,
+ xmalloc, xfree);
+ 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);
+ flags &= ~OBJF_MAPPED;
}
/* Update the per-objfile information that comes from the bfd, ensuring
that any data that is reference is saved in the per-objfile data
region. */
- objfile -> obfd = abfd;
- if (objfile -> name != NULL)
+ objfile->obfd = abfd;
+ if (objfile->name != NULL)
{
- mfree (objfile -> md, objfile -> name);
+ mfree (objfile->md, objfile->name);
}
if (abfd != NULL)
{
- objfile -> name = mstrsave (objfile -> md, bfd_get_filename (abfd));
- objfile -> mtime = bfd_get_mtime (abfd);
+ objfile->name = mstrsave (objfile->md, 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",
- objfile -> name, bfd_errmsg (bfd_get_error ()));
+ error ("Can't find the file sections in `%s': %s",
+ objfile->name, bfd_errmsg (bfd_get_error ()));
}
}
+ /* 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;
+ objfile->next = NULL;
if (object_files == NULL)
object_files = objfile;
else
{
for (last_one = object_files;
- last_one -> next;
- last_one = last_one -> next);
- last_one -> next = objfile;
+ last_one->next;
+ last_one = last_one->next);
+ last_one->next = objfile;
}
- /* Record whether this objfile was created because the user explicitly
- caused it (e.g., used the add-symbol-file command).
- */
- objfile -> user_loaded = user_loaded;
-
- /* Record whether this objfile definitely represents a solib. */
- objfile -> is_solib = is_solib;
+ /* Save passed in flag bits. */
+ objfile->flags |= flags;
return (objfile);
}
/* 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;
+ 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;
- objfile -> next = NULL;
- break;
+ *objpp = (*objpp)->next;
+ objfile->next = NULL;
+ return;
}
}
+
+ internal_error (__FILE__, __LINE__,
+ "unlink_objfile: objfile already unlinked");
}
Things which we do NOT free because they are not in malloc'd memory
or not in memory specific to the objfile include:
- objfile -> sf
+ objfile -> sf
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
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
freeing things which are valid only during this particular gdb
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. */
- if (objfile -> obfd != NULL)
+ if (objfile->obfd != NULL)
{
char *name = bfd_get_filename (objfile->obfd);
- if (!bfd_close (objfile -> obfd))
+ 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. */
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
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 ();
#if defined(USE_MMALLOC) && defined(HAVE_MMAP)
- if (objfile -> flags & OBJF_MAPPED)
+ if (objfile->flags & OBJF_MAPPED)
{
/* Remember the fd so we can close it. We can't close it before
- doing the detach, and after the detach the objfile is gone. */
+ doing the detach, and after the detach the objfile is gone. */
int mmfd;
- mmfd = objfile -> mmfd;
- mmalloc_detach (objfile -> md);
+ mmfd = objfile->mmfd;
+ mmalloc_detach (objfile->md);
objfile = NULL;
close (mmfd);
}
-#endif /* defined(USE_MMALLOC) && defined(HAVE_MMAP) */
+#endif /* defined(USE_MMALLOC) && defined(HAVE_MMAP) */
/* If we still have an objfile, then either we don't support reusable
objfiles or this one was not reusable. So free it normally. */
if (objfile != NULL)
{
- if (objfile -> name != NULL)
+ if (objfile->name != NULL)
{
- mfree (objfile -> md, objfile -> name);
+ mfree (objfile->md, objfile->name);
}
if (objfile->global_psymbols.list)
mfree (objfile->md, objfile->global_psymbols.list);
if (objfile->static_psymbols.list)
mfree (objfile->md, objfile->static_psymbols.list);
/* Free the obstacks for non-reusable objfiles */
- obstack_free (&objfile -> psymbol_cache.cache, 0);
- obstack_free (&objfile -> psymbol_obstack, 0);
- obstack_free (&objfile -> symbol_obstack, 0);
- obstack_free (&objfile -> type_obstack, 0);
- mfree (objfile -> md, objfile);
+ free_bcache (&objfile->psymbol_cache);
+ obstack_free (&objfile->psymbol_obstack, 0);
+ obstack_free (&objfile->symbol_obstack, 0);
+ obstack_free (&objfile->type_obstack, 0);
+ mfree (objfile->md, objfile);
objfile = NULL;
}
}
+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;
ALL_OBJFILES_SAFE (objfile, temp)
- {
- free_objfile (objfile);
- }
+ {
+ free_objfile (objfile);
+ }
clear_symtab_users ();
}
\f
/* 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 (struct section_offsets)
- + objfile->num_sections * sizeof (delta->offsets));
+ struct section_offsets *delta =
+ (struct section_offsets *) alloca (SIZEOF_SECTION_OFFSETS);
{
int i;
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;
struct symtab *s;
ALL_OBJFILE_SYMTABS (objfile, s)
- {
- struct linetable *l;
- struct blockvector *bv;
- int i;
-
- /* First the line table. */
- l = LINETABLE (s);
- if (l)
- {
- for (i = 0; i < l->nitems; ++i)
- l->item[i].pc += ANOFFSET (delta, s->block_line_section);
- }
-
- /* Don't relocate a shared blockvector more than once. */
- if (!s->primary)
- continue;
-
- bv = BLOCKVECTOR (s);
- for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); ++i)
- {
- struct block *b;
- int j;
-
- b = BLOCKVECTOR_BLOCK (bv, i);
- BLOCK_START (b) += ANOFFSET (delta, s->block_line_section);
- BLOCK_END (b) += ANOFFSET (delta, s->block_line_section);
-
- for (j = 0; j < BLOCK_NSYMS (b); ++j)
- {
- struct symbol *sym = BLOCK_SYM (b, j);
- /* 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
- they can't possibly pass the tests below. */
- if ((SYMBOL_CLASS (sym) == LOC_LABEL
- || SYMBOL_CLASS (sym) == LOC_STATIC
- || SYMBOL_CLASS (sym) == LOC_INDIRECT)
- && SYMBOL_SECTION (sym) >= 0)
- {
- SYMBOL_VALUE_ADDRESS (sym) +=
- ANOFFSET (delta, SYMBOL_SECTION (sym));
- }
+ {
+ struct linetable *l;
+ struct blockvector *bv;
+ int i;
+
+ /* First the line table. */
+ l = LINETABLE (s);
+ if (l)
+ {
+ for (i = 0; i < l->nitems; ++i)
+ l->item[i].pc += ANOFFSET (delta, s->block_line_section);
+ }
+
+ /* Don't relocate a shared blockvector more than once. */
+ if (!s->primary)
+ continue;
+
+ bv = BLOCKVECTOR (s);
+ for (i = 0; i < BLOCKVECTOR_NBLOCKS (bv); ++i)
+ {
+ struct block *b;
+ int j;
+
+ b = BLOCKVECTOR_BLOCK (bv, i);
+ BLOCK_START (b) += ANOFFSET (delta, s->block_line_section);
+ BLOCK_END (b) += ANOFFSET (delta, s->block_line_section);
+
+ 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
+ they can't possibly pass the tests below. */
+ if ((SYMBOL_CLASS (sym) == LOC_LABEL
+ || SYMBOL_CLASS (sym) == LOC_STATIC
+ || SYMBOL_CLASS (sym) == LOC_INDIRECT)
+ && SYMBOL_SECTION (sym) >= 0)
+ {
+ SYMBOL_VALUE_ADDRESS (sym) +=
+ ANOFFSET (delta, SYMBOL_SECTION (sym));
+ }
#ifdef MIPS_EFI_SYMBOL_NAME
- /* Relocate Extra Function Info for ecoff. */
+ /* Relocate Extra Function Info for ecoff. */
- else
- if (SYMBOL_CLASS (sym) == LOC_CONST
- && SYMBOL_NAMESPACE (sym) == LABEL_NAMESPACE
- && STRCMP (SYMBOL_NAME (sym), MIPS_EFI_SYMBOL_NAME) == 0)
- ecoff_relocate_efi (sym, ANOFFSET (delta,
+ else if (SYMBOL_CLASS (sym) == LOC_CONST
+ && SYMBOL_NAMESPACE (sym) == LABEL_NAMESPACE
+ && strcmp (SYMBOL_NAME (sym), MIPS_EFI_SYMBOL_NAME) == 0)
+ ecoff_relocate_efi (sym, ANOFFSET (delta,
s->block_line_section));
#endif
- }
- }
- }
+ }
+ }
+ }
}
{
struct partial_symtab *p;
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));
+ }
}
{
struct minimal_symbol *msym;
ALL_OBJFILE_MSYMBOLS (objfile, msym)
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
to be out of order. */
{
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;
abfd = objfile->obfd;
- for (s = objfile->sections;
- s < objfile->sections_end; ++s)
+ 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;
ALL_OBJFILES (ofp)
- {
- if (ofp -> psymtabs != NULL)
- {
- return 1;
- }
- }
+ {
+ if (ofp->psymtabs != NULL)
+ {
+ return 1;
+ }
+ }
return 0;
}
available, nonzero otherwise. */
int
-have_full_symbols ()
+have_full_symbols (void)
{
struct objfile *ofp;
ALL_OBJFILES (ofp)
- {
- if (ofp -> symtabs != NULL)
- {
- return 1;
- }
- }
+ {
+ if (ofp->symtabs != NULL)
+ {
+ return 1;
+ }
+ }
return 0;
}
/* This operations deletes all objfile entries that represent solibs that
weren't explicitly loaded by the user, via e.g., the add-symbol-file
command.
- */
+ */
void
-objfile_purge_solibs ()
+objfile_purge_solibs (void)
{
- struct objfile * objf;
- struct objfile * temp;
+ struct objfile *objf;
+ struct objfile *temp;
ALL_OBJFILES_SAFE (objf, temp)
{
/* We assume that the solib package has been purged already, or will
be soon.
- */
- if (! objf->user_loaded && objf->is_solib)
+ */
+ if (!(objf->flags & OBJF_USERLOADED) && (objf->flags & OBJF_SHARED))
free_objfile (objf);
}
}
available, nonzero otherwise. */
int
-have_minimal_symbols ()
+have_minimal_symbols (void)
{
struct objfile *ofp;
ALL_OBJFILES (ofp)
- {
- if (ofp -> msymbols != NULL)
- {
- return 1;
- }
- }
+ {
+ if (ofp->msymbols != NULL)
+ {
+ return 1;
+ }
+ }
return 0;
}
Otherwise, returns the open file descriptor. */
static int
-open_existing_mapped_file (symsfilename, mtime, mapped)
- char *symsfilename;
- long mtime;
- int mapped;
+open_existing_mapped_file (char *symsfilename, long mtime, int flags)
{
int fd = -1;
struct stat sbuf;
{
if (sbuf.st_mtime < mtime)
{
- if (!mapped)
+ if (!(flags & OBJF_MAPPED))
{
warning ("mapped symbol file `%s' is out of date, ignored it",
symsfilename);
/bin for example). */
static int
-open_mapped_file (filename, mtime, mapped)
- char *filename;
- long mtime;
- int mapped;
+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);
- if ((fd = open_existing_mapped_file (symsfilename, mtime, mapped)) < 0)
+ 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, mapped);
+ fd = open_existing_mapped_file (symsfilename, mtime, flags);
}
/* If we don't have an open file by now, then either the file does not
By default the file is rw for everyone, with the user's umask taking
care of turning off the permissions the user wants off. */
- if ((fd < 0) && mapped)
+ 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;
if (mapto != 0)
{
/* To avoid reusing the freshly created mapping file, at the
- address selected by mmap, we must truncate it before trying
- to do an attach at the address we want. */
+ address selected by mmap, we must truncate it before trying
+ to do an attach at the address we want. */
ftruncate (fd, 0);
md = mmalloc_attach (fd, (PTR) mapto);
if (md != NULL)
return (md);
}
-#endif /* defined(USE_MMALLOC) && defined(HAVE_MMAP) */
+#endif /* defined(USE_MMALLOC) && defined(HAVE_MMAP) */
/* Returns a section whose range includes PC and SECTION,
or NULL if none found. Note the distinction between the return type,
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;
-
- ALL_OBJFILES (objfile)
- for (s = objfile->sections; s < objfile->sections_end; ++s)
-#if defined(HPUXHPPA)
- if ((section == 0 || section == s->the_bfd_section) &&
- s->addr <= pc && pc <= s->endaddr)
-#else
- if ((section == 0 || section == s->the_bfd_section) &&
- s->addr <= pc && pc < s->endaddr)
-#endif
- return(s);
- return(NULL);
+ ALL_OBJSECTIONS (objfile, s)
+ if ((section == 0 || section == s->the_bfd_section) &&
+ s->addr <= pc && pc < s->endaddr)
+ return (s);
+
+ return (NULL);
}
/* Returns a section whose range includes PC or NULL if none found.
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));
}
-
+
/* 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
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;
-
- s = find_pc_section(pc);
-
+
+ s = find_pc_section (pc);
+
retval = (s != NULL
&& s->the_bfd_section->name != NULL
&& STREQ (s->the_bfd_section->name, ".plt"));
- return(retval);
+ return (retval);
}
+
+/* Return nonzero if NAME is in the import list of OBJFILE. Else
+ return zero. */
+
+int
+is_in_import_list (char *name, struct objfile *objfile)
+{
+ register int i;
+
+ if (!objfile || !name || !*name)
+ return 0;
+
+ for (i = 0; i < objfile->import_list_size; i++)
+ if (objfile->import_list[i] && STREQ (name, objfile->import_list[i]))
+ return 1;
+ return 0;
+}
+