/* 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, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ Copyright (C) 1990-2013 Free Software Foundation, Inc.
Contributed by Cygnus Support, using pieces from other GDB modules.
#include "elf-bfd.h"
#include "solib.h"
#include "remote.h"
+#include "stack.h"
+#include "gdb_bfd.h"
#include <sys/types.h>
#include <fcntl.h>
/* Global variables owned by this file. */
int readnow_symbol_files; /* Read full symbols immediately. */
-/* External variables and functions referenced. */
-
-extern void report_transfer_performance (unsigned long, time_t, time_t);
-
/* Functions this file defines. */
static void load_command (char *, int);
static void overlay_invalidate_all (void);
-void list_overlays_command (char *, int);
-
-void map_overlay_command (char *, int);
-
-void unmap_overlay_command (char *, int);
-
static void overlay_auto_command (char *, int);
static void overlay_manual_command (char *, int);
static VEC (sym_fns_ptr) *symtab_fns = NULL;
-/* Flag for whether user will be reloading symbols multiple times.
- Defaults to ON for VxWorks, otherwise OFF. */
-
-#ifdef SYMBOL_RELOADING_DEFAULT
-int symbol_reloading = SYMBOL_RELOADING_DEFAULT;
-#else
-int symbol_reloading = 0;
-#endif
-static void
-show_symbol_reloading (struct ui_file *file, int from_tty,
- struct cmd_list_element *c, const char *value)
-{
- fprintf_filtered (file, _("Dynamic symbol table reloading "
- "multiple times in one run is %s.\n"),
- 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
struct other_sections *osp;
osp = &addrs->other[i];
- if (osp->addr == 0)
+ if (osp->sectindex == -1)
continue;
/* Record all sections in offsets. */
{
const struct other_sections *a = *((struct other_sections **) ap);
const struct other_sections *b = *((struct other_sections **) bp);
- int retval, a_idx, b_idx;
+ int retval;
retval = strcmp (addr_section_name (a->name), addr_section_name (b->name));
if (retval)
return retval;
- /* SECTINDEX is undefined iff ADDR is zero. */
- a_idx = a->addr == 0 ? 0 : a->sectindex;
- b_idx = b->addr == 0 ? 0 : b->sectindex;
- return a_idx - b_idx;
+ return a->sectindex - b->sectindex;
}
/* Provide sorted array of pointers to sections of ADDRS. The array is
bfd_get_filename (abfd));
addrs->other[i].addr = 0;
-
- /* SECTINDEX is invalid if ADDR is zero. */
+ addrs->other[i].sectindex = -1;
}
}
return data;
}
+/* This is a convenience function to call sym_read for OBJFILE and
+ possibly force the partial symbols to be read. */
+
+static void
+read_symbols (struct objfile *objfile, int add_flags)
+{
+ (*objfile->sf->sym_read) (objfile, add_flags);
+ if (!objfile_has_partial_symbols (objfile))
+ {
+ bfd *abfd = find_separate_debug_file_in_section (objfile);
+ struct cleanup *cleanup = make_cleanup_bfd_unref (abfd);
+
+ if (abfd != NULL)
+ symbol_file_add_separate (abfd, add_flags, objfile);
+
+ do_cleanups (cleanup);
+ }
+ if ((add_flags & SYMFILE_NO_READ) == 0)
+ require_partial_symbols (objfile, 0);
+}
+
+/* Initialize entry point information for this objfile. */
+
+static void
+init_entry_point_info (struct objfile *objfile)
+{
+ /* Save startup file's range of PC addresses to help blockframe.c
+ decide where the bottom of the stack is. */
+
+ if (bfd_get_file_flags (objfile->obfd) & EXEC_P)
+ {
+ /* Executable file -- record its entry point so we'll recognize
+ the startup file because it contains the entry point. */
+ objfile->ei.entry_point = bfd_get_start_address (objfile->obfd);
+ objfile->ei.entry_point_p = 1;
+ }
+ else if (bfd_get_file_flags (objfile->obfd) & DYNAMIC
+ && bfd_get_start_address (objfile->obfd) != 0)
+ {
+ /* Some shared libraries may have entry points set and be
+ runnable. There's no clear way to indicate this, so just check
+ for values other than zero. */
+ objfile->ei.entry_point = bfd_get_start_address (objfile->obfd);
+ objfile->ei.entry_point_p = 1;
+ }
+ else
+ {
+ /* Examination of non-executable.o files. Short-circuit this stuff. */
+ objfile->ei.entry_point_p = 0;
+ }
+
+ if (objfile->ei.entry_point_p)
+ {
+ CORE_ADDR entry_point = objfile->ei.entry_point;
+
+ /* Make certain that the address points at real code, and not a
+ function descriptor. */
+ entry_point
+ = gdbarch_convert_from_func_ptr_addr (objfile->gdbarch,
+ entry_point,
+ ¤t_target);
+
+ /* Remove any ISA markers, so that this matches entries in the
+ symbol table. */
+ objfile->ei.entry_point
+ = gdbarch_addr_bits_remove (objfile->gdbarch, entry_point);
+ }
+}
+
/* Process a symbol file, as either the main file or as a dynamically
loaded file.
+ This function does not set the OBJFILE's entry-point info.
+
OBJFILE is where the symbols are to be read from.
ADDRS is the list of section load addresses. If the user has given
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 add_flags)
+static void
+syms_from_objfile_1 (struct objfile *objfile,
+ struct section_addr_info *addrs,
+ struct section_offsets *offsets,
+ int num_offsets,
+ int add_flags)
{
struct section_addr_info *local_addr = NULL;
struct cleanup *old_chain;
gdb_assert (! (addrs && offsets));
- init_entry_point_info (objfile);
objfile->sf = find_sym_fns (objfile->obfd);
if (objfile->sf == NULL)
- return; /* No symbols. */
+ {
+ /* No symbols to load, but we still need to make sure
+ that the section_offsets table is allocated. */
+ int num_sections = bfd_count_sections (objfile->obfd);
+ size_t size = SIZEOF_N_SECTION_OFFSETS (num_offsets);
+
+ objfile->num_sections = num_sections;
+ objfile->section_offsets
+ = obstack_alloc (&objfile->objfile_obstack, size);
+ memset (objfile->section_offsets, 0, size);
+ return;
+ }
/* Make sure that partially constructed symbol tables will be cleaned up
if an error occurs during symbol reading. */
init_objfile_sect_indices (objfile);
}
- (*objfile->sf->sym_read) (objfile, add_flags);
+ read_symbols (objfile, add_flags);
/* Discard cleanups as symbol reading was successful. */
xfree (local_addr);
}
+/* Same as syms_from_objfile_1, but also initializes the objfile
+ entry-point info. */
+
+void
+syms_from_objfile (struct objfile *objfile,
+ struct section_addr_info *addrs,
+ struct section_offsets *offsets,
+ int num_offsets,
+ int add_flags)
+{
+ syms_from_objfile_1 (objfile, addrs, offsets, num_offsets, add_flags);
+ init_entry_point_info (objfile);
+}
+
/* Perform required actions after either reading in the initial
symbols for a new objfile, or mapping in the symbols from a reusable
objfile. ADD_FLAGS is a bitmask of enum symfile_add_flags. */
loaded file.
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.
+ A new reference is acquired by this function.
ADD_FLAGS encodes verbosity, whether this is main symbol file or
extra, such as dynamically loaded code, and what to do with breakpoins.
syms_from_objfile, above.
ADDRS is ignored when SYMFILE_MAINLINE bit is set in ADD_FLAGS.
+ PARENT is the original objfile if ABFD is a separate debug info file.
+ Otherwise PARENT is NULL.
+
Upon success, returns a pointer to the objfile that was added.
Upon failure, jumps back to command level (never returns). */
struct section_addr_info *addrs,
struct section_offsets *offsets,
int num_offsets,
- int flags)
+ int flags, struct objfile *parent)
{
struct objfile *objfile;
- struct cleanup *my_cleanups;
const char *name = bfd_get_filename (abfd);
const int from_tty = add_flags & SYMFILE_VERBOSE;
+ const int mainline = add_flags & SYMFILE_MAINLINE;
+ const int should_print = ((from_tty || info_verbose)
+ && (readnow_symbol_files
+ || (add_flags & SYMFILE_NO_READ) == 0));
if (readnow_symbol_files)
- flags |= OBJF_READNOW;
-
- my_cleanups = make_cleanup_bfd_close (abfd);
+ {
+ flags |= OBJF_READNOW;
+ add_flags &= ~SYMFILE_NO_READ;
+ }
/* Give user a chance to burp if we'd be
interactively wiping out any existing symbols. */
if ((have_full_symbols () || have_partial_symbols ())
- && (add_flags & SYMFILE_MAINLINE)
+ && mainline
&& from_tty
&& !query (_("Load new symbol table from \"%s\"? "), name))
error (_("Not confirmed."));
- objfile = allocate_objfile (abfd, flags);
- discard_cleanups (my_cleanups);
+ objfile = allocate_objfile (abfd, flags | (mainline ? OBJF_MAINLINE : 0));
+
+ if (parent)
+ add_separate_debug_objfile (objfile, parent);
/* 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. */
- if (from_tty || info_verbose)
+ if (should_print)
{
if (deprecated_pre_add_symbol_hook)
deprecated_pre_add_symbol_hook (name);
if ((flags & OBJF_READNOW))
{
- if (from_tty || info_verbose)
+ if (should_print)
{
printf_unfiltered (_("expanding to full symbols..."));
wrap_here ("");
objfile->sf->qf->expand_all_symtabs (objfile);
}
- if ((from_tty || info_verbose)
- && !objfile_has_symbols (objfile))
+ if (should_print && !objfile_has_symbols (objfile))
{
wrap_here ("");
printf_unfiltered (_("(no debugging symbols found)..."));
wrap_here ("");
}
- if (from_tty || info_verbose)
+ if (should_print)
{
if (deprecated_post_add_symbol_hook)
deprecated_post_add_symbol_hook ();
time. */
gdb_flush (gdb_stdout);
- do_cleanups (my_cleanups);
-
if (objfile->sf == NULL)
{
observer_notify_new_objfile (objfile);
(bfd, symfile_flags,
sap, NULL, 0,
objfile->flags & (OBJF_REORDERED | OBJF_SHARED | OBJF_READNOW
- | OBJF_USERLOADED));
+ | OBJF_USERLOADED),
+ objfile);
do_cleanups (my_cleanup);
-
- add_separate_debug_objfile (new_objfile, objfile);
}
/* Process the symbol file ABFD, as either the main file or as a
struct objfile *
symbol_file_add_from_bfd (bfd *abfd, int add_flags,
struct section_addr_info *addrs,
- int flags)
+ int flags, struct objfile *parent)
{
return symbol_file_add_with_addrs_or_offsets (abfd, add_flags, addrs, 0, 0,
- flags);
+ flags, parent);
}
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), add_flags, addrs,
- flags);
+ bfd *bfd = symfile_bfd_open (name);
+ struct cleanup *cleanup = make_cleanup_bfd_unref (bfd);
+ struct objfile *objf;
+
+ objf = symbol_file_add_from_bfd (bfd, add_flags, addrs, flags, NULL);
+ do_cleanups (cleanup);
+ return objf;
}
static void
symbol_file_add_main_1 (char *args, int from_tty, int flags)
{
- const int add_flags = SYMFILE_MAINLINE | (from_tty ? SYMFILE_VERBOSE : 0);
+ const int add_flags = (current_inferior ()->symfile_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. */
reinit_frame_cache ();
- set_initial_language ();
+ if ((flags & SYMFILE_NO_READ) == 0)
+ set_initial_language ();
}
void
return contents;
}
+/* Return 32-bit CRC for ABFD. If successful store it to *FILE_CRC_RETURN and
+ return 1. Otherwise print a warning and return 0. ABFD seek position is
+ not preserved. */
+
+static int
+get_file_crc (bfd *abfd, unsigned long *file_crc_return)
+{
+ unsigned long file_crc = 0;
+
+ if (bfd_seek (abfd, 0, SEEK_SET) != 0)
+ {
+ warning (_("Problem reading \"%s\" for CRC: %s"),
+ bfd_get_filename (abfd), bfd_errmsg (bfd_get_error ()));
+ return 0;
+ }
+
+ for (;;)
+ {
+ gdb_byte buffer[8 * 1024];
+ bfd_size_type count;
+
+ count = bfd_bread (buffer, sizeof (buffer), abfd);
+ if (count == (bfd_size_type) -1)
+ {
+ warning (_("Problem reading \"%s\" for CRC: %s"),
+ bfd_get_filename (abfd), bfd_errmsg (bfd_get_error ()));
+ return 0;
+ }
+ if (count == 0)
+ break;
+ file_crc = gnu_debuglink_crc32 (file_crc, buffer, count);
+ }
+
+ *file_crc_return = file_crc;
+ return 1;
+}
+
static int
separate_debug_file_exists (const char *name, unsigned long crc,
struct objfile *parent_objfile)
{
- unsigned long file_crc = 0;
+ unsigned long file_crc;
+ int file_crc_p;
bfd *abfd;
- gdb_byte buffer[8*1024];
- int count;
struct stat parent_stat, abfd_stat;
+ int verified_as_different;
/* Find a separate debug info file as if symbols would be present in
PARENT_OBJFILE itself this function would not be called. .gnu_debuglink
".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)
+ if (filename_cmp (name, parent_objfile->name) == 0)
return 0;
- abfd = bfd_open_maybe_remote (name);
+ abfd = gdb_bfd_open_maybe_remote (name);
if (!abfd)
return 0;
- /* Verify symlinks were not the cause of strcmp name difference above.
+ /* Verify symlinks were not the cause of filename_cmp 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
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)
+ && abfd_stat.st_ino != 0
+ && bfd_stat (parent_objfile->obfd, &parent_stat) == 0)
{
- bfd_close (abfd);
- return 0;
+ if (abfd_stat.st_dev == parent_stat.st_dev
+ && abfd_stat.st_ino == parent_stat.st_ino)
+ {
+ gdb_bfd_unref (abfd);
+ return 0;
+ }
+ verified_as_different = 1;
}
+ else
+ verified_as_different = 0;
- while ((count = bfd_bread (buffer, sizeof (buffer), abfd)) > 0)
- file_crc = gnu_debuglink_crc32 (file_crc, buffer, count);
+ file_crc_p = get_file_crc (abfd, &file_crc);
- bfd_close (abfd);
+ gdb_bfd_unref (abfd);
+
+ if (!file_crc_p)
+ return 0;
if (crc != file_crc)
{
- warning (_("the debug information found in \"%s\""
- " does not match \"%s\" (CRC mismatch).\n"),
- name, parent_objfile->name);
+ /* If one (or both) the files are accessed for example the via "remote:"
+ gdbserver way it does not support the bfd_stat operation. Verify
+ whether those two files are not the same manually. */
+
+ if (!verified_as_different && !parent_objfile->crc32_p)
+ {
+ parent_objfile->crc32_p = get_file_crc (parent_objfile->obfd,
+ &parent_objfile->crc32);
+ if (!parent_objfile->crc32_p)
+ return 0;
+ }
+
+ if (verified_as_different || parent_objfile->crc32 != file_crc)
+ warning (_("the debug information found in \"%s\""
+ " does not match \"%s\" (CRC mismatch).\n"),
+ name, parent_objfile->name);
+
return 0;
}
#define DEBUG_SUBDIRECTORY ".debug"
#endif
-char *
-find_separate_debug_file_by_debuglink (struct objfile *objfile)
+/* Find a separate debuginfo file for OBJFILE, using DIR as the directory
+ where the original file resides (may not be the same as
+ dirname(objfile->name) due to symlinks), and DEBUGLINK as the file we are
+ looking for. Returns the name of the debuginfo, of NULL. */
+
+static char *
+find_separate_debug_file (const char *dir,
+ const char *canon_dir,
+ const char *debuglink,
+ unsigned long crc32, struct objfile *objfile)
{
- char *basename, *debugdir;
- char *dir = NULL;
- char *debugfile = NULL;
- char *canon_name = NULL;
- unsigned long crc32;
+ char *debugdir;
+ char *debugfile;
int i;
+ VEC (char_ptr) *debugdir_vec;
+ struct cleanup *back_to;
+ int ix;
- basename = get_debug_link_info (objfile, &crc32);
-
- if (basename == 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);
-
- /* Strip off the final filename part, leaving the directory name,
- followed by a slash. The directory can be relative or absolute. */
- for (i = strlen(dir) - 1; i >= 0; i--)
- {
- if (IS_DIR_SEPARATOR (dir[i]))
- break;
- }
- /* If I is -1 then no directory is present there and DIR will be "". */
- dir[i+1] = '\0';
-
- /* Set I to max (strlen (canon_name), strlen (dir)). */
- canon_name = lrealpath (dir);
+ /* Set I to max (strlen (canon_dir), strlen (dir)). */
i = strlen (dir);
- if (canon_name && strlen (canon_name) > i)
- i = strlen (canon_name);
+ if (canon_dir != NULL && strlen (canon_dir) > i)
+ i = strlen (canon_dir);
debugfile = xmalloc (strlen (debug_file_directory) + 1
+ i
+ strlen (DEBUG_SUBDIRECTORY)
+ strlen ("/")
- + strlen (basename)
+ + strlen (debuglink)
+ 1);
/* First try in the same directory as the original file. */
strcpy (debugfile, dir);
- strcat (debugfile, basename);
+ strcat (debugfile, debuglink);
if (separate_debug_file_exists (debugfile, crc32, objfile))
- goto cleanup_return_debugfile;
+ return debugfile;
/* Then try in the subdirectory named DEBUG_SUBDIRECTORY. */
strcpy (debugfile, dir);
strcat (debugfile, DEBUG_SUBDIRECTORY);
strcat (debugfile, "/");
- strcat (debugfile, basename);
+ strcat (debugfile, debuglink);
if (separate_debug_file_exists (debugfile, crc32, objfile))
- goto cleanup_return_debugfile;
+ return debugfile;
/* Then try in the global debugfile directories.
-
+
Keep backward compatibility so that DEBUG_FILE_DIRECTORY being "" will
cause "/..." lookups. */
- debugdir = debug_file_directory;
- do
- {
- char *debugdir_end;
-
- while (*debugdir == DIRNAME_SEPARATOR)
- debugdir++;
-
- debugdir_end = strchr (debugdir, DIRNAME_SEPARATOR);
- if (debugdir_end == NULL)
- debugdir_end = &debugdir[strlen (debugdir)];
+ debugdir_vec = dirnames_to_char_ptr_vec (debug_file_directory);
+ back_to = make_cleanup_free_char_ptr_vec (debugdir_vec);
- memcpy (debugfile, debugdir, debugdir_end - debugdir);
- debugfile[debugdir_end - debugdir] = 0;
+ for (ix = 0; VEC_iterate (char_ptr, debugdir_vec, ix, debugdir); ++ix)
+ {
+ strcpy (debugfile, debugdir);
strcat (debugfile, "/");
strcat (debugfile, dir);
- strcat (debugfile, basename);
+ strcat (debugfile, debuglink);
if (separate_debug_file_exists (debugfile, crc32, objfile))
- goto cleanup_return_debugfile;
+ 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)]))
+ if (canon_dir != NULL
+ && filename_ncmp (canon_dir, gdb_sysroot,
+ strlen (gdb_sysroot)) == 0
+ && IS_DIR_SEPARATOR (canon_dir[strlen (gdb_sysroot)]))
{
- memcpy (debugfile, debugdir, debugdir_end - debugdir);
- debugfile[debugdir_end - debugdir] = 0;
- strcat (debugfile, canon_name + strlen (gdb_sysroot));
+ strcpy (debugfile, debugdir);
+ strcat (debugfile, canon_dir + strlen (gdb_sysroot));
strcat (debugfile, "/");
- strcat (debugfile, basename);
+ strcat (debugfile, debuglink);
if (separate_debug_file_exists (debugfile, crc32, objfile))
- goto cleanup_return_debugfile;
+ return debugfile;
}
-
- debugdir = debugdir_end;
}
- while (*debugdir != 0);
-
+
+ do_cleanups (back_to);
xfree (debugfile);
- debugfile = NULL;
+ return NULL;
+}
+
+/* Modify PATH to contain only "directory/" part of PATH.
+ If there were no directory separators in PATH, PATH will be empty
+ string on return. */
+
+static void
+terminate_after_last_dir_separator (char *path)
+{
+ int i;
+
+ /* Strip off the final filename part, leaving the directory name,
+ followed by a slash. The directory can be relative or absolute. */
+ for (i = strlen(path) - 1; i >= 0; i--)
+ if (IS_DIR_SEPARATOR (path[i]))
+ break;
+
+ /* If I is -1 then no directory is present there and DIR will be "". */
+ path[i + 1] = '\0';
+}
+
+/* Find separate debuginfo for OBJFILE (using .gnu_debuglink section).
+ Returns pathname, or NULL. */
+
+char *
+find_separate_debug_file_by_debuglink (struct objfile *objfile)
+{
+ char *debuglink;
+ char *dir, *canon_dir;
+ char *debugfile;
+ unsigned long crc32;
+ struct cleanup *cleanups;
+
+ debuglink = get_debug_link_info (objfile, &crc32);
+
+ if (debuglink == NULL)
+ {
+ /* There's no separate debug info, hence there's no way we could
+ load it => no warning. */
+ return NULL;
+ }
-cleanup_return_debugfile:
- xfree (canon_name);
- xfree (basename);
- xfree (dir);
+ cleanups = make_cleanup (xfree, debuglink);
+ dir = xstrdup (objfile->name);
+ make_cleanup (xfree, dir);
+ terminate_after_last_dir_separator (dir);
+ canon_dir = lrealpath (dir);
+
+ debugfile = find_separate_debug_file (dir, canon_dir, debuglink,
+ crc32, objfile);
+ xfree (canon_dir);
+
+ if (debugfile == NULL)
+ {
+#ifdef HAVE_LSTAT
+ /* For PR gdb/9538, try again with realpath (if different from the
+ original). */
+
+ struct stat st_buf;
+
+ if (lstat (objfile->name, &st_buf) == 0 && S_ISLNK(st_buf.st_mode))
+ {
+ char *symlink_dir;
+
+ symlink_dir = lrealpath (objfile->name);
+ if (symlink_dir != NULL)
+ {
+ make_cleanup (xfree, symlink_dir);
+ terminate_after_last_dir_separator (symlink_dir);
+ if (strcmp (dir, symlink_dir) != 0)
+ {
+ /* Different directory, so try using it. */
+ debugfile = find_separate_debug_file (symlink_dir,
+ symlink_dir,
+ debuglink,
+ crc32,
+ objfile);
+ }
+ }
+ }
+#endif /* HAVE_LSTAT */
+ }
+
+ do_cleanups (cleanups);
return debugfile;
}
else
{
const char *filename;
-
+
filename = find_main_filename ();
if (filename != NULL)
lang = deduce_language_from_filename (filename);
}
/* If NAME is a remote name open the file using remote protocol, otherwise
- open it normally. */
+ open it normally. Returns a new reference to the BFD. On error,
+ returns NULL with the BFD error set. */
bfd *
-bfd_open_maybe_remote (const char *name)
+gdb_bfd_open_maybe_remote (const char *name)
{
+ bfd *result;
+
if (remote_filename_p (name))
- return remote_bfd_open (name, gnutarget);
+ result = remote_bfd_open (name, gnutarget);
else
- return bfd_openr (name, gnutarget);
+ result = gdb_bfd_open (name, gnutarget, -1);
+
+ return result;
}
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 ()));
- }
+ 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);
+ make_cleanup_bfd_unref (sym_bfd);
error (_("`%s': can't read symbols: %s."), name,
bfd_errmsg (bfd_get_error ()));
}
perror_with_name (name);
}
- /* Free 1st new malloc'd copy, but keep the 2nd malloc'd copy in
- bfd. It'll be freed in free_objfile(). */
xfree (name);
name = absolute_name;
+ make_cleanup (xfree, name);
- sym_bfd = bfd_fopen (name, gnutarget, FOPEN_RB, desc);
+ sym_bfd = gdb_bfd_open (name, gnutarget, desc);
if (!sym_bfd)
{
- close (desc);
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))
{
- /* FIXME: should be checking for errors from bfd_close (for one
- thing, on error it does not free all the storage associated
- with the bfd). */
- bfd_close (sym_bfd); /* This also closes desc. */
- make_cleanup (xfree, name);
+ make_cleanup_bfd_unref (sym_bfd);
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;
}
{
/* The write is just starting. Let the user know we've started
this section. */
- ui_out_message (uiout, 0, "Loading section %s, size %s lma %s\n",
+ ui_out_message (current_uiout, 0, "Loading section %s, size %s lma %s\n",
args->section_name, hex_string (args->section_size),
- paddress (target_gdbarch, args->lma));
+ paddress (target_gdbarch (), args->lma));
return;
}
if (target_read_memory (args->lma, check, bytes) != 0)
error (_("Download verify read failed at %s"),
- paddress (target_gdbarch, args->lma));
+ paddress (target_gdbarch (), args->lma));
if (memcmp (args->buffer, check, bytes) != 0)
error (_("Download verify compare failed at %s"),
- paddress (target_gdbarch, args->lma));
+ paddress (target_gdbarch (), args->lma));
do_cleanups (verify_cleanups);
}
totals->data_count += bytes;
args->buffer += bytes;
totals->write_count += 1;
args->section_sent += bytes;
- if (quit_flag
+ if (check_quit_flag ()
|| (deprecated_ui_load_progress_hook != NULL
&& deprecated_ui_load_progress_hook (args->section_name,
args->section_sent)))
struct cleanup *old_cleanups = make_cleanup (null_cleanup, 0);
struct load_section_data cbdata;
struct load_progress_data total_progress;
+ struct ui_out *uiout = current_uiout;
CORE_ADDR entry;
char **argv;
}
/* Open the file for loading. */
- loadfile_bfd = bfd_openr (filename, gnutarget);
+ loadfile_bfd = gdb_bfd_open (filename, gnutarget, -1);
if (loadfile_bfd == NULL)
{
perror_with_name (filename);
return;
}
- /* FIXME: should be checking for errors from bfd_close (for one thing,
- on error it does not free all the storage associated with the
- bfd). */
- make_cleanup_bfd_close (loadfile_bfd);
+ make_cleanup_bfd_unref (loadfile_bfd);
if (!bfd_check_format (loadfile_bfd, bfd_object))
{
gettimeofday (&end_time, NULL);
entry = bfd_get_start_address (loadfile_bfd);
+ entry = gdbarch_addr_bits_remove (target_gdbarch (), entry);
ui_out_text (uiout, "Start address ");
- ui_out_field_fmt (uiout, "address", "%s", paddress (target_gdbarch, 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");
/* Report how fast the transfer went. */
-/* DEPRECATED: cagney/1999-10-18: report_transfer_performance is being
- replaced by print_transfer_performance (with a very different
- function signature). */
-
-void
-report_transfer_performance (unsigned long data_count, time_t start_time,
- time_t end_time)
-{
- struct timeval start, end;
-
- start.tv_sec = start_time;
- start.tv_usec = 0;
- end.tv_sec = end_time;
- end.tv_usec = 0;
-
- print_transfer_performance (gdb_stdout, data_count, 0, &start, &end);
-}
-
void
print_transfer_performance (struct ui_file *stream,
unsigned long data_count,
const struct timeval *end_time)
{
ULONGEST time_count;
+ struct ui_out *uiout = current_uiout;
/* Compute the elapsed time in milliseconds, as a tradeoff between
accuracy and overflow. */
}
else
error (_("USAGE: add-symbol-file <filename> <textaddress>"
- " [-
mapped] [-readnow] [-s <secname> <addr>]*"));
+ " [-readnow] [-s <secname> <addr>]*"));
}
}
}
}
\f
+typedef struct objfile *objfilep;
+
+DEF_VEC_P (objfilep);
+
/* Re-read symbols if a symbol-file has changed. */
void
reread_symbols (void)
{
struct objfile *objfile;
long new_modtime;
- int reread_one = 0;
struct stat new_statbuf;
int res;
+ VEC (objfilep) *new_objfiles = NULL;
+ struct cleanup *all_cleanups;
+
+ all_cleanups = make_cleanup (VEC_cleanup (objfilep), &new_objfiles);
/* With the addition of shared libraries, this should be modified,
the load time should be saved in the partial symbol tables, since
/* 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)
+ if (exec_bfd != NULL
+ && filename_cmp (bfd_get_filename (objfile->obfd),
+ bfd_get_filename (exec_bfd)) == 0)
{
/* Reload EXEC_BFD without asking anything. */
exec_file_attach (bfd_get_filename (objfile->obfd), 0);
}
- /* 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 ()));
+ /* Keep the calls order approx. the same as in free_objfile. */
- /* 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));
+ /* Free the separate debug objfiles. It will be
+ automatically recreated by sym_read. */
+ free_objfile_separate_debug (objfile);
/* Remove any references to this objfile in the global
value lists. */
clear_objfile_data (objfile);
- /* Free the separate debug objfiles. It will be
- automatically recreated by sym_read. */
- free_objfile_separate_debug (objfile);
+ /* Clean up any state BFD has sitting around. */
+ {
+ struct bfd *obfd = objfile->obfd;
+
+ obfd_filename = bfd_get_filename (objfile->obfd);
+ /* Open the new BFD before freeing the old one, so that
+ the filename remains live. */
+ objfile->obfd = gdb_bfd_open_maybe_remote (obfd_filename);
+ if (objfile->obfd == NULL)
+ {
+ /* We have to make a cleanup and error here, rather
+ than erroring later, because once we unref OBFD,
+ OBFD_FILENAME will be freed. */
+ make_cleanup_bfd_unref (obfd);
+ error (_("Can't open %s to read symbols."), obfd_filename);
+ }
+ gdb_bfd_unref (obfd);
+ }
+
+ objfile->name = bfd_get_filename (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));
/* FIXME: Do we have to free a whole linked list, or is this
enough? */
/* Free the obstacks for non-reusable objfiles. */
psymbol_bcache_free (objfile->psymbol_cache);
objfile->psymbol_cache = psymbol_bcache_init ();
- bcache_xfree (objfile->macro_cache);
- objfile->macro_cache = bcache_xmalloc (NULL, NULL);
- bcache_xfree (objfile->filename_cache);
- objfile->filename_cache = bcache_xmalloc (NULL,NULL);
if (objfile->demangled_names_hash != NULL)
{
htab_delete (objfile->demangled_names_hash);
objfile->psymtabs = NULL;
objfile->psymtabs_addrmap = NULL;
objfile->free_psymtabs = NULL;
- objfile->cp_namespace_symtab = NULL;
objfile->template_symbols = 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 = psymbol_bcache_init ();
- objfile->macro_cache = bcache_xmalloc (NULL, NULL);
- objfile->filename_cache = bcache_xmalloc (NULL, NULL);
+ set_objfile_per_bfd (objfile);
+
/* 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. */
+ 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 ()));
- }
+ build_objfile_section_table (objfile);
terminate_minimal_symbol_table (objfile);
/* We use the same section offsets as from last time. I'm not
(*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);
+
+ objfile->flags &= ~OBJF_PSYMTABS_READ;
+ read_symbols (objfile, 0);
+
if (!objfile_has_symbols (objfile))
{
wrap_here ("");
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);
+
+ VEC_safe_push (objfilep, new_objfiles, objfile);
}
}
- if (reread_one)
+ if (new_objfiles)
{
+ int ix;
+
/* Notify objfiles that we've modified objfile sections. */
objfiles_changed ();
clear_symtab_users (0);
+
+ /* clear_objfile_data for each objfile was called before freeing it and
+ observer_notify_new_objfile (NULL) has been called by
+ clear_symtab_users above. Notify the new files now. */
+ for (ix = 0; VEC_iterate (objfilep, new_objfiles, ix, objfile); ix++)
+ observer_notify_new_objfile (objfile);
+
/* At least one objfile has changed, so we can consider that
the executable we're debugging has changed too. */
observer_notify_executable_changed ();
}
+
+ do_cleanups (all_cleanups);
}
\f
obstack_alloc (&objfile->objfile_obstack, sizeof (struct symtab));
memset (symtab, 0, sizeof (*symtab));
symtab->filename = (char *) bcache (filename, strlen (filename) + 1,
- objfile->filename_cache);
+ objfile->per_bfd->filename_cache);
symtab->fullname = NULL;
symtab->language = deduce_language_from_filename (filename);
symtab->debugformat = "unknown";
symtab->next = objfile->symtabs;
objfile->symtabs = symtab;
+ if (symtab_create_debug)
+ {
+ /* Be a bit clever with debugging messages, and don't print objfile
+ every time, only when it changes. */
+ static char *last_objfile_name = NULL;
+
+ if (last_objfile_name == NULL
+ || strcmp (last_objfile_name, objfile->name) != 0)
+ {
+ xfree (last_objfile_name);
+ last_objfile_name = xstrdup (objfile->name);
+ fprintf_unfiltered (gdb_stdlog,
+ "Creating one or more symtabs for objfile %s ...\n",
+ last_objfile_name);
+ }
+ fprintf_unfiltered (gdb_stdlog,
+ "Created symtab %s for module %s.\n",
+ host_address_to_string (symtab), filename);
+ }
+
return (symtab);
}
\f
clear_displays ();
if ((add_flags & SYMFILE_DEFER_BP_RESET) == 0)
breakpoint_re_set ();
- set_default_breakpoint (0, NULL, 0, 0, 0);
+ clear_last_displayed_sal ();
clear_pc_function_cache ();
observer_notify_new_objfile (NULL);
{
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))
/* Function: list_overlays_command
Print a list of mapped sections and their PC ranges. */
-void
+static void
list_overlays_command (char *args, int from_tty)
{
int nmapped = 0;
/* Function: map_overlay_command
Mark the named section as mapped (ie. residing at its VMA address). */
-void
+static void
map_overlay_command (char *args, int from_tty)
{
struct objfile *objfile, *objfile2;
Mark the overlay section as unmapped
(ie. resident in its LMA address range, rather than the VMA range). */
-void
+static void
unmap_overlay_command (char *args, int from_tty)
{
struct objfile *objfile;
A place-holder for a mis-typed command. */
/* Command list chain containing all defined "overlay" subcommands. */
-struct cmd_list_element *overlaylist;
+static struct cmd_list_element *overlaylist;
static void
overlay_command (char *args, int from_tty)
default_symfile_relocate (struct objfile *objfile, asection *sectp,
bfd_byte *buf)
{
- bfd *abfd = objfile->obfd;
+ /* Use sectp->owner instead of objfile->obfd. sectp may point to a
+ DWO file. */
+ bfd *abfd = sectp->owner;
/* We're only interested in sections with relocation
information. */
A load OFFSET may also be given."), &cmdlist);
set_cmd_completer (c, filename_completer);
- add_setshow_boolean_cmd ("symbol-reloading", class_support,
- &symbol_reloading, _("\
-Set dynamic symbol table reloading multiple times in one run."), _("\
-Show dynamic symbol table reloading multiple times in one run."), NULL,
- NULL,
- show_symbol_reloading,
- &setlist, &showlist);
-
add_prefix_cmd ("overlay", class_support, overlay_command,
_("Commands for debugging overlays."), &overlaylist,
"overlay ", 0, &cmdlist);
projects / deliverable / binutils-gdb.git / blobdiff