/* Generic symbol file reading for the GNU debugger, GDB.
Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
Contributed by Cygnus Support, using pieces from other GDB modules.
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
+#include "arch-utils.h"
#include "bfdlink.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "language.h"
#include "complaints.h"
#include "demangle.h"
-#include "inferior.h" /* for write_pc */
+#include "inferior.h"
+#include "regcache.h"
#include "filenames.h" /* for DOSish file names */
#include "gdb-stabs.h"
#include "gdb_obstack.h"
#include "varobj.h"
#include "elf-bfd.h"
#include "solib.h"
+#include "remote.h"
#include <sys/types.h>
#include <fcntl.h>
static void add_symbol_file_command (char *, int);
-static void add_shared_symbol_files_command (char *, int);
-
-static void reread_separate_symbols (struct objfile *objfile);
-
static void cashier_psymtab (struct partial_symtab *);
bfd *symfile_bfd_open (char *);
static void overlay_invalidate_all (void);
-static int overlay_is_mapped (struct obj_section *);
-
void list_overlays_command (char *, int);
void map_overlay_command (char *, int);
static void simple_free_overlay_table (void);
-static void read_target_long_array (CORE_ADDR, unsigned int *, int);
+static void read_target_long_array (CORE_ADDR, unsigned int *, int, int,
+ enum bfd_endian);
static int simple_read_overlay_table (void);
static void info_ext_lang_command (char *args, int from_tty);
-static char *find_separate_debug_file (struct objfile *objfile);
-
static void init_filename_language_table (void);
static void symfile_find_segment_sections (struct objfile *objfile);
value);
}
-
/* If non-zero, shared library symbols will be added automatically
when the inferior is created, new libraries are loaded, or when
attaching to the inferior. This is almost always what users will
an existing section table. */
extern struct section_addr_info *
-build_section_addr_info_from_section_table (const struct section_table *start,
- const struct section_table *end)
+build_section_addr_info_from_section_table (const struct target_section *start,
+ const struct target_section *end)
{
struct section_addr_info *sap;
- const struct section_table *stp;
+ const struct target_section *stp;
int oidx;
sap = alloc_section_addr_info (end - start);
/* Find a unique offset to use for loadable section SECT if
the user did not provide an offset. */
-void
+static void
place_section (bfd *abfd, asection *sect, void *obj)
{
struct place_section_arg *arg = obj;
list any more; all we have is the section offset table.) If
OFFSETS is non-zero, ADDRS must be zero.
- MAINLINE is nonzero if this is the main symbol file, or zero if
- it's an extra symbol file such as dynamically loaded code.
-
- VERBO is nonzero if the caller has printed a verbose message about
- the symbol reading (and complaints can be more terse about it). */
+ ADD_FLAGS encodes verbosity level, whether this is main symbol or
+ an extra symbol file such as dynamically loaded code, and wether
+ breakpoint reset should be deferred. */
void
syms_from_objfile (struct objfile *objfile,
struct section_addr_info *addrs,
struct section_offsets *offsets,
int num_offsets,
- int mainline,
- int verbo)
+ int add_flags)
{
struct section_addr_info *local_addr = NULL;
struct cleanup *old_chain;
+ const int mainline = add_flags & SYMFILE_MAINLINE;
gdb_assert (! (addrs && offsets));
if (symfile_objfile != NULL)
{
free_objfile (symfile_objfile);
- symfile_objfile = NULL;
+ gdb_assert (symfile_objfile == NULL);
}
/* Currently we keep symbols from the add-symbol-file command.
initial symbol reading for this file. */
(*objfile->sf->sym_init) (objfile);
- clear_complaints (&symfile_complaints, 1, verbo);
+ clear_complaints (&symfile_complaints, 1, add_flags & SYMFILE_VERBOSE);
if (addrs)
(*objfile->sf->sym_offsets) (objfile, addrs);
init_objfile_sect_indices (objfile);
}
-#ifndef DEPRECATED_IBM6000_TARGET
- /* This is a SVR4/SunOS specific hack, I think. In any event, it
- screws RS/6000. sym_offsets should be doing this sort of thing,
- because it knows the mapping between bfd sections and
- section_offsets. */
- /* This is a hack. As far as I can tell, section offsets are not
- target dependent. They are all set to addr with a couple of
- exceptions. The exceptions are sysvr4 shared libraries, whose
- offsets are kept in solib structures anyway and rs6000 xcoff
- which handles shared libraries in a completely unique way.
-
- Section offsets are built similarly, except that they are built
- by adding addr in all cases because there is no clear mapping
- from section_offsets into actual sections. Note that solib.c
- has a different algorithm for finding section offsets.
-
- These should probably all be collapsed into some target
- independent form of shared library support. FIXME. */
-
- if (addrs)
- {
- struct obj_section *s;
-
- /* Map section offsets in "addr" back to the object's
- sections by comparing the section names with bfd's
- section names. Then adjust the section address by
- the offset. */ /* for gdb/13815 */
-
- ALL_OBJFILE_OSECTIONS (objfile, s)
- {
- CORE_ADDR s_addr = 0;
- int i;
-
- for (i = 0;
- !s_addr && i < addrs->num_sections && addrs->other[i].name;
- i++)
- if (strcmp (bfd_section_name (s->objfile->obfd,
- s->the_bfd_section),
- addrs->other[i].name) == 0)
- s_addr = addrs->other[i].addr; /* end added for gdb/13815 */
-
- s->addr -= s->offset;
- s->addr += s_addr;
- s->endaddr -= s->offset;
- s->endaddr += s_addr;
- s->offset += s_addr;
- }
- }
-#endif /* not DEPRECATED_IBM6000_TARGET */
-
- (*objfile->sf->sym_read) (objfile, mainline);
-
- /* Don't allow char * to have a typename (else would get caddr_t).
- Ditto void *. FIXME: Check whether this is now done by all the
- symbol readers themselves (many of them now do), and if so remove
- it from here. */
-
- TYPE_NAME (lookup_pointer_type (builtin_type_char)) = 0;
- TYPE_NAME (lookup_pointer_type (builtin_type_void)) = 0;
-
- /* Mark the objfile has having had initial symbol read attempted. Note
- that this does not mean we found any symbols... */
-
- objfile->flags |= OBJF_SYMS;
+ (*objfile->sf->sym_read) (objfile, add_flags);
/* Discard cleanups as symbol reading was successful. */
discard_cleanups (old_chain);
+ xfree (local_addr);
}
/* Perform required actions after either reading in the initial
objfile. */
void
-new_symfile_objfile (struct objfile *objfile, int mainline, int verbo)
+new_symfile_objfile (struct objfile *objfile, int add_flags)
{
/* If this is the main symbol file we have to clean up all users of the
old main symbol file. Otherwise it is sufficient to fixup all the
breakpoints that may have been redefined by this symbol file. */
- if (mainline)
+ if (add_flags & SYMFILE_MAINLINE)
{
/* OK, make it the "real" symbol file. */
symfile_objfile = objfile;
clear_symtab_users ();
}
- else
+ else if ((add_flags & SYMFILE_DEFER_BP_RESET) == 0)
{
breakpoint_re_set ();
}
/* We're done reading the symbol file; finish off complaints. */
- clear_complaints (&symfile_complaints, 0, verbo);
+ clear_complaints (&symfile_complaints, 0, add_flags & SYMFILE_VERBOSE);
}
/* Process a symbol file, as either the main file or as a dynamically
ABFD is a BFD already open on the file, as from symfile_bfd_open.
This BFD will be closed on error, and is always consumed by this function.
- FROM_TTY says how verbose to be.
-
- MAINLINE specifies whether this is the main symbol file, or whether
- it's an extra symbol file such as dynamically loaded code.
+ ADD_FLAGS encodes verbosity, whether this is main symbol file or
+ extra, such as dynamically loaded code, and what to do with breakpoins.
ADDRS, OFFSETS, and NUM_OFFSETS are as described for
- syms_from_objfile, above. ADDRS is ignored when MAINLINE is
- non-zero.
+ syms_from_objfile, above.
+ ADDRS is ignored when SYMFILE_MAINLINE bit is set in ADD_FLAGS.
Upon success, returns a pointer to the objfile that was added.
Upon failure, jumps back to command level (never returns). */
+
static struct objfile *
-symbol_file_add_with_addrs_or_offsets (bfd *abfd, int from_tty,
+symbol_file_add_with_addrs_or_offsets (bfd *abfd,
+ int add_flags,
struct section_addr_info *addrs,
struct section_offsets *offsets,
int num_offsets,
- int mainline, int flags)
+ int flags)
{
struct objfile *objfile;
struct partial_symtab *psymtab;
- char *debugfile = NULL;
- struct section_addr_info *orig_addrs = NULL;
struct cleanup *my_cleanups;
const char *name = bfd_get_filename (abfd);
+ const int from_tty = add_flags & SYMFILE_VERBOSE;
my_cleanups = make_cleanup_bfd_close (abfd);
interactively wiping out any existing symbols. */
if ((have_full_symbols () || have_partial_symbols ())
- && mainline
+ && (add_flags & SYMFILE_MAINLINE)
&& from_tty
- && !query ("Load new symbol table from \"%s\"? ", name))
+ && !query (_("Load new symbol table from \"%s\"? "), name))
error (_("Not confirmed."));
objfile = allocate_objfile (abfd, flags);
discard_cleanups (my_cleanups);
- if (addrs)
- {
- orig_addrs = copy_section_addr_info (addrs);
- make_cleanup_free_section_addr_info (orig_addrs);
- }
-
/* We either created a new mapped symbol table, mapped an existing
symbol table file which has not had initial symbol reading
performed, or need to read an unmapped symbol table. */
}
}
syms_from_objfile (objfile, addrs, offsets, num_offsets,
- mainline, from_tty);
+ add_flags);
/* We now have at least a partial symbol table. Check to see if the
user requested that all symbols be read on initial access via either
}
}
- /* If the file has its own symbol tables it has no separate debug info.
- `.dynsym'/`.symtab' go to MSYMBOLS, `.debug_info' goes to SYMTABS/PSYMTABS.
- `.gnu_debuglink' may no longer be present with `.note.gnu.build-id'. */
- if (objfile->psymtabs == NULL)
- debugfile = find_separate_debug_file (objfile);
- if (debugfile)
- {
- if (addrs != NULL)
- {
- objfile->separate_debug_objfile
- = symbol_file_add (debugfile, from_tty, orig_addrs, 0, flags);
- }
- else
- {
- objfile->separate_debug_objfile
- = symbol_file_add (debugfile, from_tty, NULL, 0, flags);
- }
- objfile->separate_debug_objfile->separate_debug_objfile_backlink
- = objfile;
-
- /* Put the separate debug object before the normal one, this is so that
- usage of the ALL_OBJFILES_SAFE macro will stay safe. */
- put_objfile_before (objfile->separate_debug_objfile, objfile);
-
- xfree (debugfile);
- }
-
- if (!have_partial_symbols () && !have_full_symbols ())
+ if ((from_tty || info_verbose)
+ && !objfile_has_symbols (objfile))
{
wrap_here ("");
- printf_filtered (_("(no debugging symbols found)"));
- if (from_tty || info_verbose)
- printf_filtered ("...");
- else
- printf_filtered ("\n");
+ printf_unfiltered (_("(no debugging symbols found)..."));
wrap_here ("");
}
if (deprecated_post_add_symbol_hook)
deprecated_post_add_symbol_hook ();
else
- {
- printf_unfiltered (_("done.\n"));
- }
+ printf_unfiltered (_("done.\n"));
}
/* We print some messages regardless of whether 'from_tty ||
do_cleanups (my_cleanups);
if (objfile->sf == NULL)
- return objfile; /* No symbols. */
+ {
+ observer_notify_new_objfile (objfile);
+ return objfile; /* No symbols. */
+ }
- new_symfile_objfile (objfile, mainline, from_tty);
+ new_symfile_objfile (objfile, add_flags);
observer_notify_new_objfile (objfile);
return (objfile);
}
+/* Add BFD as a separate debug file for OBJFILE. */
+
+void
+symbol_file_add_separate (bfd *bfd, int symfile_flags, struct objfile *objfile)
+{
+ /* Currently only one separate debug objfile is supported. */
+ gdb_assert (objfile && objfile->separate_debug_objfile == NULL);
+
+ objfile->separate_debug_objfile =
+ symbol_file_add_with_addrs_or_offsets
+ (bfd, symfile_flags,
+ 0, /* No addr table. */
+ objfile->section_offsets, objfile->num_sections,
+ objfile->flags & (OBJF_REORDERED | OBJF_SHARED | OBJF_READNOW
+ | OBJF_USERLOADED));
+ objfile->separate_debug_objfile->separate_debug_objfile_backlink
+ = objfile;
+
+ /* Put the separate debug object before the normal one, this is so that
+ usage of the ALL_OBJFILES_SAFE macro will stay safe. */
+ put_objfile_before (objfile->separate_debug_objfile, objfile);
+}
/* Process the symbol file ABFD, as either the main file or as a
dynamically loaded file.
See symbol_file_add_with_addrs_or_offsets's comments for
details. */
struct objfile *
-symbol_file_add_from_bfd (bfd *abfd, int from_tty,
+symbol_file_add_from_bfd (bfd *abfd, int add_flags,
struct section_addr_info *addrs,
- int mainline, int flags)
+ int flags)
{
- return symbol_file_add_with_addrs_or_offsets (abfd,
- from_tty, addrs, 0, 0,
- mainline, flags);
+ return symbol_file_add_with_addrs_or_offsets (abfd, add_flags, addrs, 0, 0,
+ flags);
}
loaded file. See symbol_file_add_with_addrs_or_offsets's comments
for details. */
struct objfile *
-symbol_file_add (char *name, int from_tty, struct section_addr_info *addrs,
- int mainline, int flags)
+symbol_file_add (char *name, int add_flags, struct section_addr_info *addrs,
+ int flags)
{
- return symbol_file_add_from_bfd (symfile_bfd_open (name), from_tty,
- addrs, mainline, flags);
+ return symbol_file_add_from_bfd (symfile_bfd_open (name), add_flags, addrs,
+ flags);
}
static void
symbol_file_add_main_1 (char *args, int from_tty, int flags)
{
- symbol_file_add (args, from_tty, NULL, 1, flags);
+ const int add_flags = SYMFILE_MAINLINE | (from_tty ? SYMFILE_VERBOSE : 0);
+ symbol_file_add (args, add_flags, NULL, flags);
/* Getting new symbols may change our opinion about
what is frameless. */
symfile_objfile->name)
: !query (_("Discard symbol table? "))))
error (_("Not confirmed."));
- free_all_objfiles ();
-
- /* solib descriptors may have handles to objfiles. Since their
- storage has just been released, we'd better wipe the solib
- descriptors as well.
- */
- no_shared_libraries (NULL, from_tty);
-
- symfile_objfile = NULL;
- if (from_tty)
- printf_unfiltered (_("No symbol file now.\n"));
-}
-
-struct build_id
- {
- size_t size;
- gdb_byte data[1];
- };
-
-/* Locate NT_GNU_BUILD_ID from ABFD and return its content. */
-
-static struct build_id *
-build_id_bfd_get (bfd *abfd)
-{
- struct build_id *retval;
-
- if (!bfd_check_format (abfd, bfd_object)
- || bfd_get_flavour (abfd) != bfd_target_elf_flavour
- || elf_tdata (abfd)->build_id == NULL)
- return NULL;
-
- retval = xmalloc (sizeof *retval - 1 + elf_tdata (abfd)->build_id_size);
- retval->size = elf_tdata (abfd)->build_id_size;
- memcpy (retval->data, elf_tdata (abfd)->build_id, retval->size);
-
- return retval;
-}
-
-/* Return if FILENAME has NT_GNU_BUILD_ID matching the CHECK value. */
-
-static int
-build_id_verify (const char *filename, struct build_id *check)
-{
- bfd *abfd;
- struct build_id *found = NULL;
- int retval = 0;
- /* We expect to be silent on the non-existing files. */
- abfd = bfd_openr (filename, gnutarget);
- if (abfd == NULL)
- return 0;
+ free_all_objfiles ();
- found = build_id_bfd_get (abfd);
+ /* solib descriptors may have handles to objfiles. Since their
+ storage has just been released, we'd better wipe the solib
+ descriptors as well. */
+ no_shared_libraries (NULL, from_tty);
- if (found == NULL)
- warning (_("File \"%s\" has no build-id, file skipped"), filename);
- else if (found->size != check->size
- || memcmp (found->data, check->data, found->size) != 0)
- warning (_("File \"%s\" has a different build-id, file skipped"), filename);
- else
- retval = 1;
-
- if (!bfd_close (abfd))
- warning (_("cannot close \"%s\": %s"), filename,
- bfd_errmsg (bfd_get_error ()));
- return retval;
-}
-
-static char *
-build_id_to_debug_filename (struct build_id *build_id)
-{
- char *link, *s, *retval = NULL;
- gdb_byte *data = build_id->data;
- size_t size = build_id->size;
-
- /* DEBUG_FILE_DIRECTORY/.build-id/ab/cdef */
- link = xmalloc (strlen (debug_file_directory) + (sizeof "/.build-id/" - 1) + 1
- + 2 * size + (sizeof ".debug" - 1) + 1);
- s = link + sprintf (link, "%s/.build-id/", debug_file_directory);
- if (size > 0)
- {
- size--;
- s += sprintf (s, "%02x", (unsigned) *data++);
- }
- if (size > 0)
- *s++ = '/';
- while (size-- > 0)
- s += sprintf (s, "%02x", (unsigned) *data++);
- strcpy (s, ".debug");
-
- /* lrealpath() is expensive even for the usually non-existent files. */
- if (access (link, F_OK) == 0)
- retval = lrealpath (link);
- xfree (link);
-
- if (retval != NULL && !build_id_verify (retval, build_id))
- {
- xfree (retval);
- retval = NULL;
- }
-
- return retval;
+ gdb_assert (symfile_objfile == NULL);
+ if (from_tty)
+ printf_unfiltered (_("No symbol file now.\n"));
}
static char *
}
static int
-separate_debug_file_exists (const char *name, unsigned long crc)
+separate_debug_file_exists (const char *name, unsigned long crc,
+ struct objfile *parent_objfile)
{
unsigned long file_crc = 0;
- int fd;
+ bfd *abfd;
gdb_byte buffer[8*1024];
int count;
+ struct stat parent_stat, abfd_stat;
- fd = open (name, O_RDONLY | O_BINARY);
- if (fd < 0)
+ /* Find a separate debug info file as if symbols would be present in
+ PARENT_OBJFILE itself this function would not be called. .gnu_debuglink
+ section can contain just the basename of PARENT_OBJFILE without any
+ ".debug" suffix as "/usr/lib/debug/path/to/file" is a separate tree where
+ the separate debug infos with the same basename can exist. */
+
+ if (strcmp (name, parent_objfile->name) == 0)
return 0;
- while ((count = read (fd, buffer, sizeof (buffer))) > 0)
+ abfd = bfd_open_maybe_remote (name);
+
+ if (!abfd)
+ return 0;
+
+ /* Verify symlinks were not the cause of strcmp name difference above.
+
+ Some operating systems, e.g. Windows, do not provide a meaningful
+ st_ino; they always set it to zero. (Windows does provide a
+ meaningful st_dev.) Do not indicate a duplicate library in that
+ case. While there is no guarantee that a system that provides
+ meaningful inode numbers will never set st_ino to zero, this is
+ merely an optimization, so we do not need to worry about false
+ negatives. */
+
+ if (bfd_stat (abfd, &abfd_stat) == 0
+ && bfd_stat (parent_objfile->obfd, &parent_stat) == 0
+ && abfd_stat.st_dev == parent_stat.st_dev
+ && abfd_stat.st_ino == parent_stat.st_ino
+ && abfd_stat.st_ino != 0)
+ {
+ bfd_close (abfd);
+ return 0;
+ }
+
+ while ((count = bfd_bread (buffer, sizeof (buffer), abfd)) > 0)
file_crc = gnu_debuglink_crc32 (file_crc, buffer, count);
- close (fd);
+ bfd_close (abfd);
- return crc == file_crc;
+ if (crc != file_crc)
+ {
+ warning (_("the debug information found in \"%s\""
+ " does not match \"%s\" (CRC mismatch).\n"),
+ name, parent_objfile->name);
+ return 0;
+ }
+
+ return 1;
}
char *debug_file_directory = NULL;
#define DEBUG_SUBDIRECTORY ".debug"
#endif
-static char *
-find_separate_debug_file (struct objfile *objfile)
+char *
+find_separate_debug_file_by_debuglink (struct objfile *objfile)
{
asection *sect;
- char *basename;
- char *dir;
- char *debugfile;
- char *name_copy;
- char *canon_name;
+ char *basename, *name_copy, *debugdir;
+ char *dir = NULL;
+ char *debugfile = NULL;
+ char *canon_name = NULL;
bfd_size_type debuglink_size;
unsigned long crc32;
int i;
- struct build_id *build_id;
-
- build_id = build_id_bfd_get (objfile->obfd);
- if (build_id != NULL)
- {
- char *build_id_name;
-
- build_id_name = build_id_to_debug_filename (build_id);
- free (build_id);
- /* Prevent looping on a stripped .debug file. */
- if (build_id_name != NULL && strcmp (build_id_name, objfile->name) == 0)
- {
- warning (_("\"%s\": separate debug info file has no debug info"),
- build_id_name);
- xfree (build_id_name);
- }
- else if (build_id_name != NULL)
- return build_id_name;
- }
basename = get_debug_link_info (objfile, &crc32);
if (basename == NULL)
- return NULL;
+ /* There's no separate debug info, hence there's no way we could
+ load it => no warning. */
+ goto cleanup_return_debugfile;
dir = xstrdup (objfile->name);
gdb_assert (i >= 0 && IS_DIR_SEPARATOR (dir[i]));
dir[i+1] = '\0';
- debugfile = alloca (strlen (debug_file_directory) + 1
- + strlen (dir)
- + strlen (DEBUG_SUBDIRECTORY)
- + strlen ("/")
- + strlen (basename)
- + 1);
+ /* Set I to max (strlen (canon_name), strlen (dir)). */
+ canon_name = lrealpath (dir);
+ i = strlen (dir);
+ if (canon_name && strlen (canon_name) > i)
+ i = strlen (canon_name);
+
+ debugfile = xmalloc (strlen (debug_file_directory) + 1
+ + i
+ + strlen (DEBUG_SUBDIRECTORY)
+ + strlen ("/")
+ + strlen (basename)
+ + 1);
/* First try in the same directory as the original file. */
strcpy (debugfile, dir);
strcat (debugfile, basename);
- if (separate_debug_file_exists (debugfile, crc32))
- {
- xfree (basename);
- xfree (dir);
- return xstrdup (debugfile);
- }
+ if (separate_debug_file_exists (debugfile, crc32, objfile))
+ goto cleanup_return_debugfile;
/* Then try in the subdirectory named DEBUG_SUBDIRECTORY. */
strcpy (debugfile, dir);
strcat (debugfile, "/");
strcat (debugfile, basename);
- if (separate_debug_file_exists (debugfile, crc32))
- {
- xfree (basename);
- xfree (dir);
- return xstrdup (debugfile);
- }
+ if (separate_debug_file_exists (debugfile, crc32, objfile))
+ goto cleanup_return_debugfile;
- /* Then try in the global debugfile directory. */
- strcpy (debugfile, debug_file_directory);
- strcat (debugfile, "/");
- strcat (debugfile, dir);
- strcat (debugfile, basename);
+ /* Then try in the global debugfile directories.
+
+ Keep backward compatibility so that DEBUG_FILE_DIRECTORY being "" will
+ cause "/..." lookups. */
- if (separate_debug_file_exists (debugfile, crc32))
+ debugdir = debug_file_directory;
+ do
{
- xfree (basename);
- xfree (dir);
- return xstrdup (debugfile);
- }
+ char *debugdir_end;
- /* If the file is in the sysroot, try using its base path in the
- global debugfile directory. */
- canon_name = lrealpath (dir);
- if (canon_name
- && strncmp (canon_name, gdb_sysroot, strlen (gdb_sysroot)) == 0
- && IS_DIR_SEPARATOR (canon_name[strlen (gdb_sysroot)]))
- {
- strcpy (debugfile, debug_file_directory);
- strcat (debugfile, canon_name + strlen (gdb_sysroot));
+ while (*debugdir == DIRNAME_SEPARATOR)
+ debugdir++;
+
+ debugdir_end = strchr (debugdir, DIRNAME_SEPARATOR);
+ if (debugdir_end == NULL)
+ debugdir_end = &debugdir[strlen (debugdir)];
+
+ memcpy (debugfile, debugdir, debugdir_end - debugdir);
+ debugfile[debugdir_end - debugdir] = 0;
strcat (debugfile, "/");
+ strcat (debugfile, dir);
strcat (debugfile, basename);
- if (separate_debug_file_exists (debugfile, crc32))
+ if (separate_debug_file_exists (debugfile, crc32, objfile))
+ goto cleanup_return_debugfile;
+
+ /* If the file is in the sysroot, try using its base path in the
+ global debugfile directory. */
+ if (canon_name
+ && strncmp (canon_name, gdb_sysroot, strlen (gdb_sysroot)) == 0
+ && IS_DIR_SEPARATOR (canon_name[strlen (gdb_sysroot)]))
{
- xfree (canon_name);
- xfree (basename);
- xfree (dir);
- return xstrdup (debugfile);
+ memcpy (debugfile, debugdir, debugdir_end - debugdir);
+ debugfile[debugdir_end - debugdir] = 0;
+ strcat (debugfile, canon_name + strlen (gdb_sysroot));
+ strcat (debugfile, "/");
+ strcat (debugfile, basename);
+
+ if (separate_debug_file_exists (debugfile, crc32, objfile))
+ goto cleanup_return_debugfile;
}
+
+ debugdir = debugdir_end;
}
+ while (*debugdir != 0);
- if (canon_name)
- xfree (canon_name);
+ xfree (debugfile);
+ debugfile = NULL;
+cleanup_return_debugfile:
+ xfree (canon_name);
xfree (basename);
xfree (dir);
- return NULL;
+ return debugfile;
}
}
else
{
- char **argv = buildargv (args);
+ char **argv = gdb_buildargv (args);
int flags = OBJF_USERLOADED;
struct cleanup *cleanups;
char *name = NULL;
- if (argv == NULL)
- nomem (0);
-
cleanups = make_cleanup_freeargv (argv);
while (*argv != NULL)
{
}
}
+/* If NAME is a remote name open the file using remote protocol, otherwise
+ open it normally. */
+
+bfd *
+bfd_open_maybe_remote (const char *name)
+{
+ if (remote_filename_p (name))
+ return remote_bfd_open (name, gnutarget);
+ else
+ return bfd_openr (name, gnutarget);
+}
+
+
/* Open the file specified by NAME and hand it off to BFD for
preliminary analysis. Return a newly initialized bfd *, which
includes a newly malloc'd` copy of NAME (tilde-expanded and made
int desc;
char *absolute_name;
+ if (remote_filename_p (name))
+ {
+ name = xstrdup (name);
+ sym_bfd = remote_bfd_open (name, gnutarget);
+ if (!sym_bfd)
+ {
+ make_cleanup (xfree, name);
+ error (_("`%s': can't open to read symbols: %s."), name,
+ bfd_errmsg (bfd_get_error ()));
+ }
+
+ if (!bfd_check_format (sym_bfd, bfd_object))
+ {
+ bfd_close (sym_bfd);
+ make_cleanup (xfree, name);
+ error (_("`%s': can't read symbols: %s."), name,
+ bfd_errmsg (bfd_get_error ()));
+ }
+
+ return sym_bfd;
+ }
+
name = tilde_expand (name); /* Returns 1st new malloc'd copy. */
/* Look down path for it, allocate 2nd new malloc'd copy. */
desc = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, name,
- O_RDONLY | O_BINARY, 0, &absolute_name);
+ O_RDONLY | O_BINARY, &absolute_name);
#if defined(__GO32__) || defined(_WIN32) || defined (__CYGWIN__)
if (desc < 0)
{
char *exename = alloca (strlen (name) + 5);
strcat (strcpy (exename, name), ".exe");
desc = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, exename,
- O_RDONLY | O_BINARY, 0, &absolute_name);
+ O_RDONLY | O_BINARY, &absolute_name);
}
#endif
if (desc < 0)
{
close (desc);
make_cleanup (xfree, name);
- error (_("\"%s\": can't open to read symbols: %s."), name,
+ error (_("`%s': can't open to read symbols: %s."), name,
bfd_errmsg (bfd_get_error ()));
}
bfd_set_cacheable (sym_bfd, 1);
with the bfd). */
bfd_close (sym_bfd); /* This also closes desc. */
make_cleanup (xfree, name);
- error (_("\"%s\": can't read symbols: %s."), name,
+ error (_("`%s': can't read symbols: %s."), name,
bfd_errmsg (bfd_get_error ()));
}
+ /* bfd_usrdata exists for applications and libbfd must not touch it. */
+ gdb_assert (bfd_usrdata (sym_bfd) == NULL);
+
return sym_bfd;
}
static void
load_command (char *arg, int from_tty)
{
+ /* The user might be reloading because the binary has changed. Take
+ this opportunity to check. */
+ reopen_exec_file ();
+ reread_symbols ();
+
if (arg == NULL)
{
char *parg;
}
}
- /* The user might be reloading because the binary has changed. Take
- this opportunity to check. */
- reopen_exec_file ();
- reread_symbols ();
-
target_load (arg, from_tty);
/* After re-loading the executable, we don't really know which
{
/* The write is just starting. Let the user know we've started
this section. */
- ui_out_message (uiout, 0, "Loading section %s, size 0x%s lma 0x%s\n",
- args->section_name, paddr_nz (args->section_size),
- paddr_nz (args->lma));
+ ui_out_message (uiout, 0, "Loading section %s, size %s lma %s\n",
+ args->section_name, hex_string (args->section_size),
+ paddress (target_gdbarch, args->lma));
return;
}
struct cleanup *verify_cleanups = make_cleanup (xfree, check);
if (target_read_memory (args->lma, check, bytes) != 0)
- error (_("Download verify read failed at 0x%s"),
- paddr (args->lma));
+ error (_("Download verify read failed at %s"),
+ paddress (target_gdbarch, args->lma));
if (memcmp (args->buffer, check, bytes) != 0)
- error (_("Download verify compare failed at 0x%s"),
- paddr (args->lma));
+ error (_("Download verify compare failed at %s"),
+ paddress (target_gdbarch, args->lma));
do_cleanups (verify_cleanups);
}
totals->data_count += bytes;
make_cleanup (clear_memory_write_data, &cbdata.requests);
- argv = buildargv (args);
-
- if (argv == NULL)
- nomem(0);
+ if (args == NULL)
+ error_no_arg (_("file to load"));
+ argv = gdb_buildargv (args);
make_cleanup_freeargv (argv);
filename = tilde_expand (argv[0]);
entry = bfd_get_start_address (loadfile_bfd);
ui_out_text (uiout, "Start address ");
- ui_out_field_fmt (uiout, "address", "0x%s", paddr_nz (entry));
+ ui_out_field_fmt (uiout, "address", "%s", paddress (target_gdbarch, entry));
ui_out_text (uiout, ", load size ");
ui_out_field_fmt (uiout, "load-size", "%lu", total_progress.data_count);
ui_out_text (uiout, "\n");
/* We were doing this in remote-mips.c, I suspect it is right
for other targets too. */
- write_pc (entry);
+ regcache_write_pc (get_current_regcache (), entry);
/* FIXME: are we supposed to call symbol_file_add or not? According
to a comment from remote-mips.c (where a call to symbol_file_add
static void
add_symbol_file_command (char *args, int from_tty)
{
+ struct gdbarch *gdbarch = get_current_arch ();
char *filename = NULL;
int flags = OBJF_USERLOADED;
char *arg;
if (args == NULL)
error (_("add-symbol-file takes a file name and an address"));
- argv = buildargv (args);
+ argv = gdb_buildargv (args);
make_cleanup_freeargv (argv);
- if (argv == NULL)
- nomem (0);
-
for (arg = argv[0], argcnt = 0; arg != NULL; arg = argv[++argcnt])
{
/* Process the argument. */
entered on the command line. */
section_addrs->other[sec_num].name = sec;
section_addrs->other[sec_num].addr = addr;
- printf_unfiltered ("\t%s_addr = %s\n", sec, paddress (addr));
+ printf_unfiltered ("\t%s_addr = %s\n", sec,
+ paddress (gdbarch, addr));
sec_num++;
/* The object's sections are initialized when a
if (from_tty && (!query ("%s", "")))
error (_("Not confirmed."));
- symbol_file_add (filename, from_tty, section_addrs, 0, flags);
+ symbol_file_add (filename, from_tty ? SYMFILE_VERBOSE : 0,
+ section_addrs, flags);
/* Getting new symbols may change our opinion about what is
frameless. */
do_cleanups (my_cleanups);
}
\f
-static void
-add_shared_symbol_files_command (char *args, int from_tty)
-{
-#ifdef ADD_SHARED_SYMBOL_FILES
- ADD_SHARED_SYMBOL_FILES (args, from_tty);
-#else
- error (_("This command is not available in this configuration of GDB."));
-#endif
-}
-\f
+
/* Re-read symbols if a symbol-file has changed. */
void
reread_symbols (void)
for (objfile = object_files; objfile; objfile = objfile->next)
{
- if (objfile->obfd)
- {
+ /* solib-sunos.c creates one objfile with obfd. */
+ if (objfile->obfd == NULL)
+ continue;
+
+ /* Separate debug objfiles are handled in the main objfile. */
+ if (objfile->separate_debug_objfile_backlink)
+ continue;
+
#ifdef DEPRECATED_IBM6000_TARGET
- /* If this object is from a shared library, then you should
- stat on the library name, not member name. */
+ /* If this object is from a shared library, then you should
+ stat on the library name, not member name. */
- if (objfile->obfd->my_archive)
- res = stat (objfile->obfd->my_archive->filename, &new_statbuf);
- else
+ if (objfile->obfd->my_archive)
+ res = stat (objfile->obfd->my_archive->filename, &new_statbuf);
+ else
#endif
- res = stat (objfile->name, &new_statbuf);
- if (res != 0)
+ res = stat (objfile->name, &new_statbuf);
+ if (res != 0)
+ {
+ /* FIXME, should use print_sys_errmsg but it's not filtered. */
+ printf_unfiltered (_("`%s' has disappeared; keeping its symbols.\n"),
+ objfile->name);
+ continue;
+ }
+ new_modtime = new_statbuf.st_mtime;
+ if (new_modtime != objfile->mtime)
+ {
+ struct cleanup *old_cleanups;
+ struct section_offsets *offsets;
+ int num_offsets;
+ char *obfd_filename;
+
+ printf_unfiltered (_("`%s' has changed; re-reading symbols.\n"),
+ objfile->name);
+
+ /* There are various functions like symbol_file_add,
+ symfile_bfd_open, syms_from_objfile, etc., which might
+ appear to do what we want. But they have various other
+ effects which we *don't* want. So we just do stuff
+ ourselves. We don't worry about mapped files (for one thing,
+ any mapped file will be out of date). */
+
+ /* If we get an error, blow away this objfile (not sure if
+ that is the correct response for things like shared
+ libraries). */
+ old_cleanups = make_cleanup_free_objfile (objfile);
+ /* We need to do this whenever any symbols go away. */
+ make_cleanup (clear_symtab_users_cleanup, 0 /*ignore*/);
+
+ if (exec_bfd != NULL && strcmp (bfd_get_filename (objfile->obfd),
+ bfd_get_filename (exec_bfd)) == 0)
{
- /* FIXME, should use print_sys_errmsg but it's not filtered. */
- printf_unfiltered (_("`%s' has disappeared; keeping its symbols.\n"),
- objfile->name);
- continue;
+ /* Reload EXEC_BFD without asking anything. */
+
+ exec_file_attach (bfd_get_filename (objfile->obfd), 0);
}
- new_modtime = new_statbuf.st_mtime;
- if (new_modtime != objfile->mtime)
+
+ /* Clean up any state BFD has sitting around. We don't need
+ to close the descriptor but BFD lacks a way of closing the
+ BFD without closing the descriptor. */
+ obfd_filename = bfd_get_filename (objfile->obfd);
+ if (!bfd_close (objfile->obfd))
+ error (_("Can't close BFD for %s: %s"), objfile->name,
+ bfd_errmsg (bfd_get_error ()));
+ objfile->obfd = bfd_open_maybe_remote (obfd_filename);
+ if (objfile->obfd == NULL)
+ error (_("Can't open %s to read symbols."), objfile->name);
+ else
+ objfile->obfd = gdb_bfd_ref (objfile->obfd);
+ /* bfd_openr sets cacheable to true, which is what we want. */
+ if (!bfd_check_format (objfile->obfd, bfd_object))
+ error (_("Can't read symbols from %s: %s."), objfile->name,
+ bfd_errmsg (bfd_get_error ()));
+
+ /* Save the offsets, we will nuke them with the rest of the
+ objfile_obstack. */
+ num_offsets = objfile->num_sections;
+ offsets = ((struct section_offsets *)
+ alloca (SIZEOF_N_SECTION_OFFSETS (num_offsets)));
+ memcpy (offsets, objfile->section_offsets,
+ SIZEOF_N_SECTION_OFFSETS (num_offsets));
+
+ /* Remove any references to this objfile in the global
+ value lists. */
+ preserve_values (objfile);
+
+ /* Nuke all the state that we will re-read. Much of the following
+ code which sets things to NULL really is necessary to tell
+ other parts of GDB that there is nothing currently there.
+
+ Try to keep the freeing order compatible with free_objfile. */
+
+ if (objfile->sf != NULL)
{
- struct cleanup *old_cleanups;
- struct section_offsets *offsets;
- int num_offsets;
- char *obfd_filename;
-
- printf_unfiltered (_("`%s' has changed; re-reading symbols.\n"),
- objfile->name);
-
- /* There are various functions like symbol_file_add,
- symfile_bfd_open, syms_from_objfile, etc., which might
- appear to do what we want. But they have various other
- effects which we *don't* want. So we just do stuff
- ourselves. We don't worry about mapped files (for one thing,
- any mapped file will be out of date). */
-
- /* If we get an error, blow away this objfile (not sure if
- that is the correct response for things like shared
- libraries). */
- old_cleanups = make_cleanup_free_objfile (objfile);
- /* We need to do this whenever any symbols go away. */
- make_cleanup (clear_symtab_users_cleanup, 0 /*ignore*/);
-
- /* Clean up any state BFD has sitting around. We don't need
- to close the descriptor but BFD lacks a way of closing the
- BFD without closing the descriptor. */
- obfd_filename = bfd_get_filename (objfile->obfd);
- if (!bfd_close (objfile->obfd))
- error (_("Can't close BFD for %s: %s"), objfile->name,
- bfd_errmsg (bfd_get_error ()));
- objfile->obfd = bfd_openr (obfd_filename, gnutarget);
- if (objfile->obfd == NULL)
- error (_("Can't open %s to read symbols."), objfile->name);
- /* bfd_openr sets cacheable to true, which is what we want. */
- if (!bfd_check_format (objfile->obfd, bfd_object))
- error (_("Can't read symbols from %s: %s."), objfile->name,
- bfd_errmsg (bfd_get_error ()));
-
- /* Save the offsets, we will nuke them with the rest of the
- objfile_obstack. */
- num_offsets = objfile->num_sections;
- offsets = ((struct section_offsets *)
- alloca (SIZEOF_N_SECTION_OFFSETS (num_offsets)));
- memcpy (offsets, objfile->section_offsets,
- SIZEOF_N_SECTION_OFFSETS (num_offsets));
-
- /* Remove any references to this objfile in the global
- value lists. */
- preserve_values (objfile);
-
- /* Nuke all the state that we will re-read. Much of the following
- code which sets things to NULL really is necessary to tell
- other parts of GDB that there is nothing currently there. */
-
- /* FIXME: Do we have to free a whole linked list, or is this
- enough? */
- if (objfile->global_psymbols.list)
- xfree (objfile->global_psymbols.list);
- memset (&objfile->global_psymbols, 0,
- sizeof (objfile->global_psymbols));
- if (objfile->static_psymbols.list)
- xfree (objfile->static_psymbols.list);
- memset (&objfile->static_psymbols, 0,
- sizeof (objfile->static_psymbols));
-
- /* Free the obstacks for non-reusable objfiles */
- bcache_xfree (objfile->psymbol_cache);
- objfile->psymbol_cache = bcache_xmalloc ();
- bcache_xfree (objfile->macro_cache);
- objfile->macro_cache = bcache_xmalloc ();
- if (objfile->demangled_names_hash != NULL)
- {
- htab_delete (objfile->demangled_names_hash);
- objfile->demangled_names_hash = NULL;
- }
- obstack_free (&objfile->objfile_obstack, 0);
- objfile->sections = NULL;
- objfile->symtabs = NULL;
- objfile->psymtabs = NULL;
- objfile->free_psymtabs = NULL;
- objfile->cp_namespace_symtab = NULL;
- objfile->msymbols = NULL;
- objfile->deprecated_sym_private = NULL;
- objfile->minimal_symbol_count = 0;
- memset (&objfile->msymbol_hash, 0,
- sizeof (objfile->msymbol_hash));
- memset (&objfile->msymbol_demangled_hash, 0,
- sizeof (objfile->msymbol_demangled_hash));
- clear_objfile_data (objfile);
- if (objfile->sf != NULL)
- {
- (*objfile->sf->sym_finish) (objfile);
- }
+ (*objfile->sf->sym_finish) (objfile);
+ }
- /* We never make this a mapped file. */
- objfile->md = NULL;
- objfile->psymbol_cache = bcache_xmalloc ();
- objfile->macro_cache = bcache_xmalloc ();
- /* obstack_init also initializes the obstack so it is
- empty. We could use obstack_specify_allocation but
- gdb_obstack.h specifies the alloc/dealloc
- functions. */
- obstack_init (&objfile->objfile_obstack);
- if (build_objfile_section_table (objfile))
- {
- error (_("Can't find the file sections in `%s': %s"),
- objfile->name, bfd_errmsg (bfd_get_error ()));
- }
- terminate_minimal_symbol_table (objfile);
-
- /* We use the same section offsets as from last time. I'm not
- sure whether that is always correct for shared libraries. */
- objfile->section_offsets = (struct section_offsets *)
- obstack_alloc (&objfile->objfile_obstack,
- SIZEOF_N_SECTION_OFFSETS (num_offsets));
- memcpy (objfile->section_offsets, offsets,
- SIZEOF_N_SECTION_OFFSETS (num_offsets));
- objfile->num_sections = num_offsets;
-
- /* What the hell is sym_new_init for, anyway? The concept of
- distinguishing between the main file and additional files
- in this way seems rather dubious. */
- if (objfile == symfile_objfile)
- {
- (*objfile->sf->sym_new_init) (objfile);
- }
+ clear_objfile_data (objfile);
- (*objfile->sf->sym_init) (objfile);
- clear_complaints (&symfile_complaints, 1, 1);
- /* The "mainline" parameter is a hideous hack; I think leaving it
- zero is OK since dbxread.c also does what it needs to do if
- objfile->global_psymbols.size is 0. */
- (*objfile->sf->sym_read) (objfile, 0);
- if (!have_partial_symbols () && !have_full_symbols ())
- {
- wrap_here ("");
- printf_unfiltered (_("(no debugging symbols found)\n"));
- wrap_here ("");
- }
- objfile->flags |= OBJF_SYMS;
+ /* Free the separate debug objfile if there is one. It will be
+ automatically recreated by sym_read. */
+ if (objfile->separate_debug_objfile)
+ {
+ /* Note: no need to clear separate_debug_objfile field as it is
+ done by free_objfile. */
+ free_objfile (objfile->separate_debug_objfile);
+ }
- /* We're done reading the symbol file; finish off complaints. */
- clear_complaints (&symfile_complaints, 0, 1);
+ /* FIXME: Do we have to free a whole linked list, or is this
+ enough? */
+ if (objfile->global_psymbols.list)
+ xfree (objfile->global_psymbols.list);
+ memset (&objfile->global_psymbols, 0,
+ sizeof (objfile->global_psymbols));
+ if (objfile->static_psymbols.list)
+ xfree (objfile->static_psymbols.list);
+ memset (&objfile->static_psymbols, 0,
+ sizeof (objfile->static_psymbols));
+
+ /* Free the obstacks for non-reusable objfiles */
+ bcache_xfree (objfile->psymbol_cache);
+ objfile->psymbol_cache = bcache_xmalloc ();
+ bcache_xfree (objfile->macro_cache);
+ objfile->macro_cache = bcache_xmalloc ();
+ bcache_xfree (objfile->filename_cache);
+ objfile->filename_cache = bcache_xmalloc ();
+ if (objfile->demangled_names_hash != NULL)
+ {
+ htab_delete (objfile->demangled_names_hash);
+ objfile->demangled_names_hash = NULL;
+ }
+ obstack_free (&objfile->objfile_obstack, 0);
+ objfile->sections = NULL;
+ objfile->symtabs = NULL;
+ objfile->psymtabs = NULL;
+ objfile->psymtabs_addrmap = NULL;
+ objfile->free_psymtabs = NULL;
+ objfile->cp_namespace_symtab = NULL;
+ objfile->msymbols = NULL;
+ objfile->deprecated_sym_private = NULL;
+ objfile->minimal_symbol_count = 0;
+ memset (&objfile->msymbol_hash, 0,
+ sizeof (objfile->msymbol_hash));
+ memset (&objfile->msymbol_demangled_hash, 0,
+ sizeof (objfile->msymbol_demangled_hash));
+
+ objfile->psymbol_cache = bcache_xmalloc ();
+ objfile->macro_cache = bcache_xmalloc ();
+ objfile->filename_cache = bcache_xmalloc ();
+ /* obstack_init also initializes the obstack so it is
+ empty. We could use obstack_specify_allocation but
+ gdb_obstack.h specifies the alloc/dealloc
+ functions. */
+ obstack_init (&objfile->objfile_obstack);
+ if (build_objfile_section_table (objfile))
+ {
+ error (_("Can't find the file sections in `%s': %s"),
+ objfile->name, bfd_errmsg (bfd_get_error ()));
+ }
+ terminate_minimal_symbol_table (objfile);
+
+ /* We use the same section offsets as from last time. I'm not
+ sure whether that is always correct for shared libraries. */
+ objfile->section_offsets = (struct section_offsets *)
+ obstack_alloc (&objfile->objfile_obstack,
+ SIZEOF_N_SECTION_OFFSETS (num_offsets));
+ memcpy (objfile->section_offsets, offsets,
+ SIZEOF_N_SECTION_OFFSETS (num_offsets));
+ objfile->num_sections = num_offsets;
+
+ /* What the hell is sym_new_init for, anyway? The concept of
+ distinguishing between the main file and additional files
+ in this way seems rather dubious. */
+ if (objfile == symfile_objfile)
+ {
+ (*objfile->sf->sym_new_init) (objfile);
+ }
- /* Getting new symbols may change our opinion about what is
- frameless. */
+ (*objfile->sf->sym_init) (objfile);
+ clear_complaints (&symfile_complaints, 1, 1);
+ /* Do not set flags as this is safe and we don't want to be
+ verbose. */
+ (*objfile->sf->sym_read) (objfile, 0);
+ if (!objfile_has_symbols (objfile))
+ {
+ wrap_here ("");
+ printf_unfiltered (_("(no debugging symbols found)\n"));
+ wrap_here ("");
+ }
- reinit_frame_cache ();
+ /* We're done reading the symbol file; finish off complaints. */
+ clear_complaints (&symfile_complaints, 0, 1);
- /* Discard cleanups as symbol reading was successful. */
- discard_cleanups (old_cleanups);
+ /* Getting new symbols may change our opinion about what is
+ frameless. */
- /* If the mtime has changed between the time we set new_modtime
- and now, we *want* this to be out of date, so don't call stat
- again now. */
- objfile->mtime = new_modtime;
- reread_one = 1;
- reread_separate_symbols (objfile);
- }
+ reinit_frame_cache ();
+
+ /* Discard cleanups as symbol reading was successful. */
+ discard_cleanups (old_cleanups);
+
+ /* If the mtime has changed between the time we set new_modtime
+ and now, we *want* this to be out of date, so don't call stat
+ again now. */
+ objfile->mtime = new_modtime;
+ reread_one = 1;
+ init_entry_point_info (objfile);
}
}
if (reread_one)
{
+ /* Notify objfiles that we've modified objfile sections. */
+ objfiles_changed ();
+
clear_symtab_users ();
/* At least one objfile has changed, so we can consider that
the executable we're debugging has changed too. */
- observer_notify_executable_changed (NULL);
- }
-
-}
-
-
-/* Handle separate debug info for OBJFILE, which has just been
- re-read:
- - If we had separate debug info before, but now we don't, get rid
- of the separated objfile.
- - If we didn't have separated debug info before, but now we do,
- read in the new separated debug info file.
- - If the debug link points to a different file, toss the old one
- and read the new one.
- This function does *not* handle the case where objfile is still
- using the same separate debug info file, but that file's timestamp
- has changed. That case should be handled by the loop in
- reread_symbols already. */
-static void
-reread_separate_symbols (struct objfile *objfile)
-{
- char *debug_file;
- unsigned long crc32;
-
- /* Does the updated objfile's debug info live in a
- separate file? */
- debug_file = find_separate_debug_file (objfile);
-
- if (objfile->separate_debug_objfile)
- {
- /* There are two cases where we need to get rid of
- the old separated debug info objfile:
- - if the new primary objfile doesn't have
- separated debug info, or
- - if the new primary objfile has separate debug
- info, but it's under a different filename.
-
- If the old and new objfiles both have separate
- debug info, under the same filename, then we're
- okay --- if the separated file's contents have
- changed, we will have caught that when we
- visited it in this function's outermost
- loop. */
- if (! debug_file
- || strcmp (debug_file, objfile->separate_debug_objfile->name) != 0)
- free_objfile (objfile->separate_debug_objfile);
- }
-
- /* If the new objfile has separate debug info, and we
- haven't loaded it already, do so now. */
- if (debug_file
- && ! objfile->separate_debug_objfile)
- {
- /* Use the same section offset table as objfile itself.
- Preserve the flags from objfile that make sense. */
- objfile->separate_debug_objfile
- = (symbol_file_add_with_addrs_or_offsets
- (symfile_bfd_open (debug_file),
- info_verbose, /* from_tty: Don't override the default. */
- 0, /* No addr table. */
- objfile->section_offsets, objfile->num_sections,
- 0, /* Not mainline. See comments about this above. */
- objfile->flags & (OBJF_REORDERED | OBJF_SHARED | OBJF_READNOW
- | OBJF_USERLOADED)));
- objfile->separate_debug_objfile->separate_debug_objfile_backlink
- = objfile;
+ observer_notify_executable_changed ();
}
- if (debug_file)
- xfree (debug_file);
}
-
-
\f
symtab = (struct symtab *)
obstack_alloc (&objfile->objfile_obstack, sizeof (struct symtab));
memset (symtab, 0, sizeof (*symtab));
- symtab->filename = obsavestring (filename, strlen (filename),
- &objfile->objfile_obstack);
+ symtab->filename = (char *) bcache (filename, strlen (filename) + 1,
+ objfile->filename_cache);
symtab->fullname = NULL;
symtab->language = deduce_language_from_filename (filename);
- symtab->debugformat = obsavestring ("unknown", 7,
- &objfile->objfile_obstack);
+ symtab->debugformat = "unknown";
/* Hook it to the objfile it comes from */
}
struct partial_symtab *
-allocate_psymtab (char *filename, struct objfile *objfile)
+allocate_psymtab (const char *filename, struct objfile *objfile)
{
struct partial_symtab *psymtab;
sizeof (struct partial_symtab));
memset (psymtab, 0, sizeof (struct partial_symtab));
- psymtab->filename = obsavestring (filename, strlen (filename),
- &objfile->objfile_obstack);
+ psymtab->filename = (char *) bcache (filename, strlen (filename) + 1,
+ objfile->filename_cache);
psymtab->symtab = NULL;
/* Prepend it to the psymtab list for the objfile it belongs to.
clear_displays ();
breakpoint_re_set ();
- set_default_breakpoint (0, 0, 0, 0);
+ set_default_breakpoint (0, NULL, 0, 0, 0);
clear_pc_function_cache ();
observer_notify_new_objfile (NULL);
struct partial_symtab *
start_psymtab_common (struct objfile *objfile,
- struct section_offsets *section_offsets, char *filename,
+ struct section_offsets *section_offsets,
+ const char *filename,
CORE_ADDR textlow, struct partial_symbol **global_syms,
struct partial_symbol **static_syms)
{
return (psymtab);
}
\f
-/* Add a symbol with a long value to a psymtab.
- Since one arg is a struct, we pass in a ptr and deref it (sigh).
- Return the partial symbol that has been added. */
-
-/* NOTE: carlton/2003-09-11: The reason why we return the partial
- symbol is so that callers can get access to the symbol's demangled
- name, which they don't have any cheap way to determine otherwise.
- (Currenly, dwarf2read.c is the only file who uses that information,
- though it's possible that other readers might in the future.)
- Elena wasn't thrilled about that, and I don't blame her, but we
- couldn't come up with a better way to get that information. If
- it's needed in other situations, we could consider breaking up
- SYMBOL_SET_NAMES to provide access to the demangled name lookup
- cache. */
-
-const struct partial_symbol *
-add_psymbol_to_list (char *name, int namelength, domain_enum domain,
- enum address_class class,
- struct psymbol_allocation_list *list, long val, /* Value as a long */
- CORE_ADDR coreaddr, /* Value as a CORE_ADDR */
- enum language language, struct objfile *objfile)
+/* Helper function, initialises partial symbol structure and stashes
+ it into objfile's bcache. Note that our caching mechanism will
+ use all fields of struct partial_symbol to determine hash value of the
+ structure. In other words, having two symbols with the same name but
+ different domain (or address) is possible and correct. */
+
+static const struct partial_symbol *
+add_psymbol_to_bcache (char *name, int namelength, int copy_name,
+ domain_enum domain,
+ enum address_class class,
+ long val, /* Value as a long */
+ CORE_ADDR coreaddr, /* Value as a CORE_ADDR */
+ enum language language, struct objfile *objfile,
+ int *added)
{
- struct partial_symbol *psym;
- char *buf = alloca (namelength + 1);
/* psymbol is static so that there will be no uninitialized gaps in the
structure which might contain random data, causing cache misses in
bcache. */
static struct partial_symbol psymbol;
- /* Create local copy of the partial symbol */
- memcpy (buf, name, namelength);
- buf[namelength] = '\0';
+ /* However, we must ensure that the entire 'value' field has been
+ zeroed before assigning to it, because an assignment may not
+ write the entire field. */
+ memset (&psymbol.ginfo.value, 0, sizeof (psymbol.ginfo.value));
/* val and coreaddr are mutually exclusive, one of them *will* be zero */
if (val != 0)
{
PSYMBOL_DOMAIN (&psymbol) = domain;
PSYMBOL_CLASS (&psymbol) = class;
- SYMBOL_SET_NAMES (&psymbol, buf, namelength, objfile);
+ SYMBOL_SET_NAMES (&psymbol, name, namelength, copy_name, objfile);
/* Stash the partial symbol away in the cache */
- psym = deprecated_bcache (&psymbol, sizeof (struct partial_symbol),
- objfile->psymbol_cache);
+ return bcache_full (&psymbol, sizeof (struct partial_symbol),
+ objfile->psymbol_cache, added);
+}
- /* Save pointer to partial symbol in psymtab, growing symtab if needed. */
+/* Helper function, adds partial symbol to the given partial symbol
+ list. */
+
+static void
+append_psymbol_to_list (struct psymbol_allocation_list *list,
+ const struct partial_symbol *psym,
+ struct objfile *objfile)
+{
if (list->next >= list->list + list->size)
- {
- extend_psymbol_list (list, objfile);
- }
- *list->next++ = psym;
+ extend_psymbol_list (list, objfile);
+ *list->next++ = (struct partial_symbol *) psym;
OBJSTAT (objfile, n_psyms++);
+}
+
+/* Add a symbol with a long value to a psymtab.
+ Since one arg is a struct, we pass in a ptr and deref it (sigh).
+ Return the partial symbol that has been added. */
+
+/* NOTE: carlton/2003-09-11: The reason why we return the partial
+ symbol is so that callers can get access to the symbol's demangled
+ name, which they don't have any cheap way to determine otherwise.
+ (Currenly, dwarf2read.c is the only file who uses that information,
+ though it's possible that other readers might in the future.)
+ Elena wasn't thrilled about that, and I don't blame her, but we
+ couldn't come up with a better way to get that information. If
+ it's needed in other situations, we could consider breaking up
+ SYMBOL_SET_NAMES to provide access to the demangled name lookup
+ cache. */
+const struct partial_symbol *
+add_psymbol_to_list (char *name, int namelength, int copy_name,
+ domain_enum domain,
+ enum address_class class,
+ struct psymbol_allocation_list *list,
+ long val, /* Value as a long */
+ CORE_ADDR coreaddr, /* Value as a CORE_ADDR */
+ enum language language, struct objfile *objfile)
+{
+ const struct partial_symbol *psym;
+
+ int added;
+
+ /* Stash the partial symbol away in the cache */
+ psym = add_psymbol_to_bcache (name, namelength, copy_name, domain, class,
+ val, coreaddr, language, objfile, &added);
+
+ /* Do not duplicate global partial symbols. */
+ if (list == &objfile->global_psymbols
+ && !added)
+ return psym;
+
+ /* Save pointer to partial symbol in psymtab, growing symtab if needed. */
+ append_psymbol_to_list (list, psym, objfile);
return psym;
}
section, return that section.
find_pc_overlay(pc): find any overlay section that contains
the pc, either in its VMA or its LMA
- overlay_is_mapped(sect): true if overlay is marked as mapped
+ section_is_mapped(sect): true if overlay is marked as mapped
section_is_overlay(sect): true if section's VMA != LMA
pc_in_mapped_range(pc,sec): true if pc belongs to section's VMA
pc_in_unmapped_range(...): true if pc belongs to section's LMA
SECTION is loaded at an address different from where it will "run". */
int
-section_is_overlay (asection *section)
+section_is_overlay (struct obj_section *section)
{
- /* FIXME: need bfd *, so we can use bfd_section_lma methods. */
-
- if (overlay_debugging)
- if (section && section->lma != 0 &&
- section->vma != section->lma)
- return 1;
+ if (overlay_debugging && section)
+ {
+ bfd *abfd = section->objfile->obfd;
+ asection *bfd_section = section->the_bfd_section;
+
+ if (bfd_section_lma (abfd, bfd_section) != 0
+ && bfd_section_lma (abfd, bfd_section)
+ != bfd_section_vma (abfd, bfd_section))
+ return 1;
+ }
return 0;
}
struct obj_section *sect;
ALL_OBJSECTIONS (objfile, sect)
- if (section_is_overlay (sect->the_bfd_section))
- sect->ovly_mapped = -1;
+ if (section_is_overlay (sect))
+ sect->ovly_mapped = -1;
}
-/* Function: overlay_is_mapped (SECTION)
+/* Function: section_is_mapped (SECTION)
Returns true if section is an overlay, and is currently mapped.
- Private: public access is thru function section_is_mapped.
Access to the ovly_mapped flag is restricted to this function, so
that we can do automatic update. If the global flag
overlay_invalidate_all. If the mapped state of the particular
section is stale, then call TARGET_OVERLAY_UPDATE to refresh it. */
-static int
-overlay_is_mapped (struct obj_section *osect)
+int
+section_is_mapped (struct obj_section *osect)
{
- if (osect == 0 || !section_is_overlay (osect->the_bfd_section))
+ struct gdbarch *gdbarch;
+
+ if (osect == 0 || !section_is_overlay (osect))
return 0;
switch (overlay_debugging)
case ovly_auto: /* overlay debugging automatic */
/* Unles there is a gdbarch_overlay_update function,
there's really nothing useful to do here (can't really go auto) */
- if (gdbarch_overlay_update_p (current_gdbarch))
+ gdbarch = get_objfile_arch (osect->objfile);
+ if (gdbarch_overlay_update_p (gdbarch))
{
if (overlay_cache_invalid)
{
overlay_cache_invalid = 0;
}
if (osect->ovly_mapped == -1)
- gdbarch_overlay_update (current_gdbarch, osect);
+ gdbarch_overlay_update (gdbarch, osect);
}
/* fall thru to manual case */
case ovly_on: /* overlay debugging manual */
}
}
-/* Function: section_is_mapped
- Returns true if section is an overlay, and is currently mapped. */
-
-int
-section_is_mapped (asection *section)
-{
- struct objfile *objfile;
- struct obj_section *osect;
-
- if (overlay_debugging)
- if (section && section_is_overlay (section))
- ALL_OBJSECTIONS (objfile, osect)
- if (osect->the_bfd_section == section)
- return overlay_is_mapped (osect);
-
- return 0;
-}
-
/* Function: pc_in_unmapped_range
If PC falls into the lma range of SECTION, return true, else false. */
CORE_ADDR
-pc_in_unmapped_range (CORE_ADDR pc, asection *section)
+pc_in_unmapped_range (CORE_ADDR pc, struct obj_section *section)
{
- /* FIXME: need bfd *, so we can use bfd_section_lma methods. */
+ if (section_is_overlay (section))
+ {
+ bfd *abfd = section->objfile->obfd;
+ asection *bfd_section = section->the_bfd_section;
- int size;
+ /* We assume the LMA is relocated by the same offset as the VMA. */
+ bfd_vma size = bfd_get_section_size (bfd_section);
+ CORE_ADDR offset = obj_section_offset (section);
+
+ if (bfd_get_section_lma (abfd, bfd_section) + offset <= pc
+ && pc < bfd_get_section_lma (abfd, bfd_section) + offset + size)
+ return 1;
+ }
- if (overlay_debugging)
- if (section && section_is_overlay (section))
- {
- size = bfd_get_section_size (section);
- if (section->lma <= pc && pc < section->lma + size)
- return 1;
- }
return 0;
}
If PC falls into the vma range of SECTION, return true, else false. */
CORE_ADDR
-pc_in_mapped_range (CORE_ADDR pc, asection *section)
+pc_in_mapped_range (CORE_ADDR pc, struct obj_section *section)
{
- /* FIXME: need bfd *, so we can use bfd_section_vma methods. */
-
- int size;
+ if (section_is_overlay (section))
+ {
+ if (obj_section_addr (section) <= pc
+ && pc < obj_section_endaddr (section))
+ return 1;
+ }
- if (overlay_debugging)
- if (section && section_is_overlay (section))
- {
- size = bfd_get_section_size (section);
- if (section->vma <= pc && pc < section->vma + size)
- return 1;
- }
return 0;
}
/* Return true if the mapped ranges of sections A and B overlap, false
otherwise. */
static int
-sections_overlap (asection *a, asection *b)
+sections_overlap (struct obj_section *a, struct obj_section *b)
{
- /* FIXME: need bfd *, so we can use bfd_section_vma methods. */
-
- CORE_ADDR a_start = a->vma;
- CORE_ADDR a_end = a->vma + bfd_get_section_size (a);
- CORE_ADDR b_start = b->vma;
- CORE_ADDR b_end = b->vma + bfd_get_section_size (b);
+ CORE_ADDR a_start = obj_section_addr (a);
+ CORE_ADDR a_end = obj_section_endaddr (a);
+ CORE_ADDR b_start = obj_section_addr (b);
+ CORE_ADDR b_end = obj_section_endaddr (b);
return (a_start < b_end && b_start < a_end);
}
May be the same as PC. */
CORE_ADDR
-overlay_unmapped_address (CORE_ADDR pc, asection *section)
+overlay_unmapped_address (CORE_ADDR pc, struct obj_section *section)
{
- /* FIXME: need bfd *, so we can use bfd_section_lma methods. */
+ if (section_is_overlay (section) && pc_in_mapped_range (pc, section))
+ {
+ bfd *abfd = section->objfile->obfd;
+ asection *bfd_section = section->the_bfd_section;
- if (overlay_debugging)
- if (section && section_is_overlay (section) &&
- pc_in_mapped_range (pc, section))
- return pc + section->lma - section->vma;
+ return pc + bfd_section_lma (abfd, bfd_section)
+ - bfd_section_vma (abfd, bfd_section);
+ }
return pc;
}
May be the same as PC. */
CORE_ADDR
-overlay_mapped_address (CORE_ADDR pc, asection *section)
+overlay_mapped_address (CORE_ADDR pc, struct obj_section *section)
{
- /* FIXME: need bfd *, so we can use bfd_section_vma methods. */
+ if (section_is_overlay (section) && pc_in_unmapped_range (pc, section))
+ {
+ bfd *abfd = section->objfile->obfd;
+ asection *bfd_section = section->the_bfd_section;
- if (overlay_debugging)
- if (section && section_is_overlay (section) &&
- pc_in_unmapped_range (pc, section))
- return pc + section->vma - section->lma;
+ return pc + bfd_section_vma (abfd, bfd_section)
+ - bfd_section_lma (abfd, bfd_section);
+ }
return pc;
}
depending on whether the section is mapped or not. */
CORE_ADDR
-symbol_overlayed_address (CORE_ADDR address, asection *section)
+symbol_overlayed_address (CORE_ADDR address, struct obj_section *section)
{
if (overlay_debugging)
{
Else if PC matches an unmapped section's VMA, return that section.
Else if PC matches an unmapped section's LMA, return that section. */
-asection *
+struct obj_section *
find_pc_overlay (CORE_ADDR pc)
{
struct objfile *objfile;
if (overlay_debugging)
ALL_OBJSECTIONS (objfile, osect)
- if (section_is_overlay (osect->the_bfd_section))
+ if (section_is_overlay (osect))
{
- if (pc_in_mapped_range (pc, osect->the_bfd_section))
+ if (pc_in_mapped_range (pc, osect))
{
- if (overlay_is_mapped (osect))
- return osect->the_bfd_section;
+ if (section_is_mapped (osect))
+ return osect;
else
best_match = osect;
}
- else if (pc_in_unmapped_range (pc, osect->the_bfd_section))
+ else if (pc_in_unmapped_range (pc, osect))
best_match = osect;
}
- return best_match ? best_match->the_bfd_section : NULL;
+ return best_match;
}
/* Function: find_pc_mapped_section (PC)
If PC falls into the VMA address range of an overlay section that is
currently marked as MAPPED, return that section. Else return NULL. */
-asection *
+struct obj_section *
find_pc_mapped_section (CORE_ADDR pc)
{
struct objfile *objfile;
if (overlay_debugging)
ALL_OBJSECTIONS (objfile, osect)
- if (pc_in_mapped_range (pc, osect->the_bfd_section) &&
- overlay_is_mapped (osect))
- return osect->the_bfd_section;
+ if (pc_in_mapped_range (pc, osect) && section_is_mapped (osect))
+ return osect;
return NULL;
}
if (overlay_debugging)
ALL_OBJSECTIONS (objfile, osect)
- if (overlay_is_mapped (osect))
+ if (section_is_mapped (osect))
{
+ struct gdbarch *gdbarch = get_objfile_arch (objfile);
const char *name;
bfd_vma lma, vma;
int size;
name = bfd_section_name (objfile->obfd, osect->the_bfd_section);
printf_filtered ("Section %s, loaded at ", name);
- fputs_filtered (paddress (lma), gdb_stdout);
+ fputs_filtered (paddress (gdbarch, lma), gdb_stdout);
puts_filtered (" - ");
- fputs_filtered (paddress (lma + size), gdb_stdout);
+ fputs_filtered (paddress (gdbarch, lma + size), gdb_stdout);
printf_filtered (", mapped at ");
- fputs_filtered (paddress (vma), gdb_stdout);
+ fputs_filtered (paddress (gdbarch, vma), gdb_stdout);
puts_filtered (" - ");
- fputs_filtered (paddress (vma + size), gdb_stdout);
+ fputs_filtered (paddress (gdbarch, vma + size), gdb_stdout);
puts_filtered ("\n");
nmapped++;
{
struct objfile *objfile, *objfile2;
struct obj_section *sec, *sec2;
- asection *bfdsec;
if (!overlay_debugging)
error (_("\
if (!strcmp (bfd_section_name (objfile->obfd, sec->the_bfd_section), args))
{
/* Now, check to see if the section is an overlay. */
- bfdsec = sec->the_bfd_section;
- if (!section_is_overlay (bfdsec))
+ if (!section_is_overlay (sec))
continue; /* not an overlay section */
/* Mark the overlay as "mapped" */
/* Next, make a pass and unmap any sections that are
overlapped by this new section: */
ALL_OBJSECTIONS (objfile2, sec2)
- if (sec2->ovly_mapped
- && sec != sec2
- && sec->the_bfd_section != sec2->the_bfd_section
- && sections_overlap (sec->the_bfd_section,
- sec2->the_bfd_section))
+ if (sec2->ovly_mapped && sec != sec2 && sections_overlap (sec, sec2))
{
if (info_verbose)
printf_unfiltered (_("Note: section %s unmapped by overlap\n"),
static void
overlay_load_command (char *args, int from_tty)
{
- if (gdbarch_overlay_update_p (current_gdbarch))
- gdbarch_overlay_update (current_gdbarch, NULL);
+ struct gdbarch *gdbarch = get_current_arch ();
+
+ if (gdbarch_overlay_update_p (gdbarch))
+ gdbarch_overlay_update (gdbarch, NULL);
else
error (_("This target does not know how to read its overlay state."));
}
{
VMA, SIZE, LMA, MAPPED
};
-#define TARGET_LONG_BYTES (gdbarch_long_bit (current_gdbarch) \
- / TARGET_CHAR_BIT)
/* Throw away the cached copy of _ovly_table */
static void
}
#endif
-/* Read an array of ints from the target into a local buffer.
+/* Read an array of ints of size SIZE from the target into a local buffer.
Convert to host order. int LEN is number of ints */
static void
-read_target_long_array (CORE_ADDR memaddr, unsigned int *myaddr, int len)
+read_target_long_array (CORE_ADDR memaddr, unsigned int *myaddr,
+ int len, int size, enum bfd_endian byte_order)
{
/* FIXME (alloca): Not safe if array is very large. */
- gdb_byte *buf = alloca (len * TARGET_LONG_BYTES);
+ gdb_byte *buf = alloca (len * size);
int i;
- read_memory (memaddr, buf, len * TARGET_LONG_BYTES);
+ read_memory (memaddr, buf, len * size);
for (i = 0; i < len; i++)
- myaddr[i] = extract_unsigned_integer (TARGET_LONG_BYTES * i + buf,
- TARGET_LONG_BYTES);
+ myaddr[i] = extract_unsigned_integer (size * i + buf, size, byte_order);
}
/* Find and grab a copy of the target _ovly_table
simple_read_overlay_table (void)
{
struct minimal_symbol *novlys_msym, *ovly_table_msym;
+ struct gdbarch *gdbarch;
+ int word_size;
+ enum bfd_endian byte_order;
simple_free_overlay_table ();
novlys_msym = lookup_minimal_symbol ("_novlys", NULL, NULL);
return 0;
}
- cache_novlys = read_memory_integer (SYMBOL_VALUE_ADDRESS (novlys_msym), 4);
+ gdbarch = get_objfile_arch (msymbol_objfile (ovly_table_msym));
+ word_size = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
+ byte_order = gdbarch_byte_order (gdbarch);
+
+ cache_novlys = read_memory_integer (SYMBOL_VALUE_ADDRESS (novlys_msym),
+ 4, byte_order);
cache_ovly_table
= (void *) xmalloc (cache_novlys * sizeof (*cache_ovly_table));
cache_ovly_table_base = SYMBOL_VALUE_ADDRESS (ovly_table_msym);
read_target_long_array (cache_ovly_table_base,
(unsigned int *) cache_ovly_table,
- cache_novlys * 4);
+ cache_novlys * 4, word_size, byte_order);
return 1; /* SUCCESS */
}
simple_read_overlay_region_table (void)
{
struct minimal_symbol *msym;
+ struct gdbarch *gdbarch;
+ int word_size;
+ enum bfd_endian byte_order;
simple_free_overlay_region_table ();
msym = lookup_minimal_symbol ("_novly_regions", NULL, NULL);
- if (msym != NULL)
- cache_novly_regions = read_memory_integer (SYMBOL_VALUE_ADDRESS (msym), 4);
- else
+ if (msym == NULL)
return 0; /* failure */
+
+ gdbarch = get_objfile_arch (msymbol_objfile (msym));
+ word_size = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
+ byte_order = gdbarch_byte_order (gdbarch);
+
+ cache_novly_regions = read_memory_integer (SYMBOL_VALUE_ADDRESS (msym),
+ 4, byte_order);
+
cache_ovly_region_table = (void *) xmalloc (cache_novly_regions * 12);
if (cache_ovly_region_table != NULL)
{
cache_ovly_region_table_base = SYMBOL_VALUE_ADDRESS (msym);
read_target_long_array (cache_ovly_region_table_base,
(unsigned int *) cache_ovly_region_table,
- cache_novly_regions * 3);
+ cache_novly_regions * 3,
+ word_size, byte_order);
}
else
return 0; /* failure */
int i, size;
bfd *obfd = osect->objfile->obfd;
asection *bsect = osect->the_bfd_section;
+ struct gdbarch *gdbarch = get_objfile_arch (osect->objfile);
+ int word_size = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT;
+ enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
size = bfd_get_section_size (osect->the_bfd_section);
for (i = 0; i < cache_novlys; i++)
&& cache_ovly_table[i][LMA] == bfd_section_lma (obfd, bsect)
/* && cache_ovly_table[i][SIZE] == size */ )
{
- read_target_long_array (cache_ovly_table_base + i * TARGET_LONG_BYTES,
- (unsigned int *) cache_ovly_table[i], 4);
+ read_target_long_array (cache_ovly_table_base + i * word_size,
+ (unsigned int *) cache_ovly_table[i],
+ 4, word_size, byte_order);
if (cache_ovly_table[i][VMA] == bfd_section_vma (obfd, bsect)
&& cache_ovly_table[i][LMA] == bfd_section_lma (obfd, bsect)
/* && cache_ovly_table[i][SIZE] == size */ )
/* Now may as well update all sections, even if only one was requested. */
ALL_OBJSECTIONS (objfile, osect)
- if (section_is_overlay (osect->the_bfd_section))
+ if (section_is_overlay (osect))
{
int i, size;
bfd *obfd = osect->objfile->obfd;
one affected platform is PowerPC GNU/Linux, although it depends on
the version of the linker in use). Also, ELF object files naturally
have unresolved relocations for their debug sections. We need to apply
- the relocations in order to get the locations of symbols correct. */
+ the relocations in order to get the locations of symbols correct.
+ Another example that may require relocation processing, is the
+ DWARF-2 .eh_frame section in .o files, although it isn't strictly a
+ debug section. */
bfd_byte *
symfile_relocate_debug_section (bfd *abfd, asection *sectp, bfd_byte *buf)
{
- /* We're only interested in debugging sections with relocation
+ /* We're only interested in sections with relocation
information. */
if ((sectp->flags & SEC_RELOC) == 0)
return NULL;
- if ((sectp->flags & SEC_DEBUGGING) == 0)
- return NULL;
/* We will handle section offsets properly elsewhere, so relocate as if
all sections begin at 0. */
If there are fewer entries in SEGMENT_BASES than there are segments
in DATA, then apply SEGMENT_BASES' last entry to all the segments.
- If there are more, then verify that all the excess addresses are
- the same as the last legitimate one, and then ignore them. This
- allows "TextSeg=X;DataSeg=X" qOffset replies for files which have
- only a single segment. */
+ If there are more entries, then ignore the extra. The target may
+ not be able to distinguish between an empty data segment and a
+ missing data segment; a missing text segment is less plausible. */
int
symfile_map_offsets_to_segments (bfd *abfd, struct symfile_segment_data *data,
struct section_offsets *offsets,
gdb_assert (data != NULL);
gdb_assert (data->num_segments > 0);
- /* Check any extra SEGMENT_BASES entries. */
- if (num_segment_bases > data->num_segments)
- for (i = data->num_segments; i < num_segment_bases; i++)
- if (segment_bases[i] != segment_bases[data->num_segments - 1])
- return 0;
-
for (i = 0, sect = abfd->sections; sect != NULL; i++, sect = sect->next)
{
int which = data->segment_info[i];
&cmdlist);
set_cmd_completer (c, filename_completer);
- c = add_cmd ("add-shared-symbol-files", class_files,
- add_shared_symbol_files_command, _("\
-Load the symbols from shared objects in the dynamic linker's link map."),
- &cmdlist);
- c = add_alias_cmd ("assf", "add-shared-symbol-files", class_files, 1,
- &cmdlist);
-
c = add_cmd ("load", class_files, load_command, _("\
Dynamically load FILE into the running program, and record its symbols\n\
for access from GDB.\n\
add_setshow_optional_filename_cmd ("debug-file-directory", class_support,
&debug_file_directory, _("\
-Set the directory where separate debug symbols are searched for."), _("\
-Show the directory where separate debug symbols are searched for."), _("\
+Set the directories where separate debug symbols are searched for."), _("\
+Show the directories where separate debug symbols are searched for."), _("\
Separate debug symbols are first searched for in the same\n\
directory as the binary, then in the `" DEBUG_SUBDIRECTORY "' subdirectory,\n\
and lastly at the path of the directory of the binary with\n\
-the global debug-file directory prepended."),
+each global debug-file-directory component prepended."),
NULL,
show_debug_file_directory,
&setlist, &showlist);
projects / deliverable / binutils-gdb.git / blobdiff