/* Generic symbol file reading for the GNU debugger, GDB.
- Copyright (C) 1990-2013 Free Software Foundation, Inc.
+ Copyright (C) 1990-2015 Free Software Foundation, Inc.
Contributed by Cygnus Support, using pieces from other GDB modules.
#include "bcache.h"
#include "hashtab.h"
#include "readline/readline.h"
-#include "gdb_assert.h"
#include "block.h"
#include "observer.h"
#include "exec.h"
#include <sys/types.h>
#include <fcntl.h>
-#include "gdb_string.h"
-#include "gdb_stat.h"
+#include <sys/stat.h>
#include <ctype.h>
#include <time.h>
-#include <sys/time.h>
+#include "gdb_sys_time.h"
#include "psymtab.h"
static void load_command (char *, int);
-static void symbol_file_add_main_1 (char *args, int from_tty, int flags);
+static void symbol_file_add_main_1 (const char *args, int from_tty, int flags);
static void add_symbol_file_command (char *, int);
-bfd *symfile_bfd_open (char *);
-
-int get_section_index (struct objfile *, char *);
-
static const struct sym_fns *find_sym_fns (bfd *);
static void decrement_reading_symtab (void *);
calls add_symtab_fns() to register information on each format it is
prepared to read. */
-typedef const struct sym_fns *sym_fns_ptr;
-DEF_VEC_P (sym_fns_ptr);
+typedef struct
+{
+ /* BFD flavour that we handle. */
+ enum bfd_flavour sym_flavour;
+
+ /* The "vtable" of symbol functions. */
+ const struct sym_fns *sym_fns;
+} registered_sym_fns;
+
+DEF_VEC_O (registered_sym_fns);
+
+static VEC (registered_sym_fns) *symtab_fns = NULL;
+
+/* Values for "set print symbol-loading". */
-static VEC (sym_fns_ptr) *symtab_fns = NULL;
+const char print_symbol_loading_off[] = "off";
+const char print_symbol_loading_brief[] = "brief";
+const char print_symbol_loading_full[] = "full";
+static const char *print_symbol_loading_enums[] =
+{
+ print_symbol_loading_off,
+ print_symbol_loading_brief,
+ print_symbol_loading_full,
+ NULL
+};
+static const char *print_symbol_loading = print_symbol_loading_full;
/* If non-zero, shared library symbols will be added automatically
when the inferior is created, new libraries are loaded, or when
int auto_solib_add = 1;
\f
+/* Return non-zero if symbol-loading messages should be printed.
+ FROM_TTY is the standard from_tty argument to gdb commands.
+ If EXEC is non-zero the messages are for the executable.
+ Otherwise, messages are for shared libraries.
+ If FULL is non-zero then the caller is printing a detailed message.
+ E.g., the message includes the shared library name.
+ Otherwise, the caller is printing a brief "summary" message. */
+
+int
+print_symbol_loading_p (int from_tty, int exec, int full)
+{
+ if (!from_tty && !info_verbose)
+ return 0;
+
+ if (exec)
+ {
+ /* We don't check FULL for executables, there are few such
+ messages, therefore brief == full. */
+ return print_symbol_loading != print_symbol_loading_off;
+ }
+ if (full)
+ return print_symbol_loading == print_symbol_loading_full;
+ return print_symbol_loading == print_symbol_loading_brief;
+}
+
/* True if we are reading a symbol table. */
int currently_reading_symtab = 0;
decrement_reading_symtab (void *dummy)
{
currently_reading_symtab--;
+ gdb_assert (currently_reading_symtab >= 0);
}
/* Increment currently_reading_symtab and return a cleanup that can be
used to decrement it. */
+
struct cleanup *
increment_reading_symtab (void)
{
++currently_reading_symtab;
+ gdb_assert (currently_reading_symtab > 0);
return make_cleanup (decrement_reading_symtab, NULL);
}
for (stp = start, oidx = 0; stp != end; stp++)
{
- if (bfd_get_section_flags (stp->bfd,
- stp->the_bfd_section) & (SEC_ALLOC | SEC_LOAD)
+ struct bfd_section *asect = stp->the_bfd_section;
+ bfd *abfd = asect->owner;
+
+ if (bfd_get_section_flags (abfd, asect) & (SEC_ALLOC | SEC_LOAD)
&& oidx < end - start)
{
sap->other[oidx].addr = stp->addr;
- sap->other[oidx].name
- = xstrdup (bfd_section_name (stp->bfd, stp->the_bfd_section));
- sap->other[oidx].sectindex
- = gdb_bfd_section_index (stp->bfd, stp->the_bfd_section);
+ sap->other[oidx].name = xstrdup (bfd_section_name (abfd, asect));
+ sap->other[oidx].sectindex = gdb_bfd_section_index (abfd, asect);
oidx++;
}
}
xfree (sap);
}
-
/* Initialize OBJFILE's sect_index_* members. */
+
static void
init_objfile_sect_indices (struct objfile *objfile)
{
void
relative_addr_info_to_section_offsets (struct section_offsets *section_offsets,
int num_sections,
- struct section_addr_info *addrs)
+ const struct section_addr_info *addrs)
{
int i;
/* Now calculate offsets for section that were specified by the caller. */
for (i = 0; i < addrs->num_sections; i++)
{
- struct other_sections *osp;
+ const struct other_sections *osp;
osp = &addrs->other[i];
if (osp->sectindex == -1)
int i;
/* `+ 1' for the NULL terminator. */
- array = xmalloc (sizeof (*array) * (addrs->num_sections + 1));
+ array = XNEWVEC (struct other_sections *, addrs->num_sections + 1);
for (i = 0; i < addrs->num_sections; i++)
array[i] = &addrs->other[i];
array[i] = NULL;
/* Now create ADDRS_TO_ABFD_ADDRS from ADDRS_SORTED and
ABFD_ADDRS_SORTED. */
- addrs_to_abfd_addrs = xzalloc (sizeof (*addrs_to_abfd_addrs)
- * addrs->num_sections);
+ addrs_to_abfd_addrs = XCNEWVEC (struct other_sections *, addrs->num_sections);
make_cleanup (xfree, addrs_to_abfd_addrs);
while (*addrs_sorted)
void
default_symfile_offsets (struct objfile *objfile,
- struct section_addr_info *addrs)
+ const struct section_addr_info *addrs)
{
objfile->num_sections = gdb_bfd_count_sections (objfile->obfd);
objfile->section_offsets = (struct section_offsets *)
init_objfile_sect_indices (objfile);
}
-
/* Divide the file into segments, which are individual relocatable units.
This is the default version of the sym_fns.sym_segments function for
symbol readers that do not have an explicit representation of segments.
low = bfd_get_section_vma (abfd, sect);
high = low + bfd_get_section_size (sect);
- data = XZALLOC (struct symfile_segment_data);
+ data = XCNEW (struct symfile_segment_data);
data->num_segments = 1;
- data->segment_bases = XCALLOC (1, CORE_ADDR);
- data->segment_sizes = XCALLOC (1, CORE_ADDR);
+ data->segment_bases = XCNEW (CORE_ADDR);
+ data->segment_sizes = XCNEW (CORE_ADDR);
num_sections = bfd_count_sections (abfd);
- data->segment_info = XCALLOC (num_sections, int);
+ data->segment_info = XCNEWVEC (int, num_sections);
for (i = 0, sect = abfd->sections; sect != NULL; i++, sect = sect->next)
{
read_symbols (struct objfile *objfile, int add_flags)
{
(*objfile->sf->sym_read) (objfile, add_flags);
+ objfile->per_bfd->minsyms_read = 1;
/* find_separate_debug_file_in_section should be called only if there is
single binary with no existing separate debug info file. */
struct cleanup *cleanup = make_cleanup_bfd_unref (abfd);
if (abfd != NULL)
- symbol_file_add_separate (abfd, add_flags, objfile);
+ {
+ /* find_separate_debug_file_in_section uses the same filename for the
+ virtual section-as-bfd like the bfd filename containing the
+ section. Therefore use also non-canonical name form for the same
+ file containing the section. */
+ symbol_file_add_separate (abfd, objfile->original_name, add_flags,
+ objfile);
+ }
do_cleanups (cleanup);
}
static void
init_entry_point_info (struct objfile *objfile)
{
+ struct entry_info *ei = &objfile->per_bfd->ei;
+
+ if (ei->initialized)
+ return;
+ ei->initialized = 1;
+
/* Save startup file's range of PC addresses to help blockframe.c
decide where the bottom of the stack is. */
{
/* 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;
+ ei->entry_point = bfd_get_start_address (objfile->obfd);
+ 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;
+ ei->entry_point = bfd_get_start_address (objfile->obfd);
+ ei->entry_point_p = 1;
}
else
{
/* Examination of non-executable.o files. Short-circuit this stuff. */
- objfile->ei.entry_point_p = 0;
+ ei->entry_point_p = 0;
}
- if (objfile->ei.entry_point_p)
+ if (ei->entry_point_p)
{
- CORE_ADDR entry_point = objfile->ei.entry_point;
+ struct obj_section *osect;
+ CORE_ADDR entry_point = ei->entry_point;
+ int found;
/* Make certain that the address points at real code, and not a
function descriptor. */
entry_point
- = gdbarch_convert_from_func_ptr_addr (objfile->gdbarch,
+ = gdbarch_convert_from_func_ptr_addr (get_objfile_arch (objfile),
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);
+ ei->entry_point
+ = gdbarch_addr_bits_remove (get_objfile_arch (objfile), entry_point);
+
+ found = 0;
+ ALL_OBJFILE_OSECTIONS (objfile, osect)
+ {
+ struct bfd_section *sect = osect->the_bfd_section;
+
+ if (entry_point >= bfd_get_section_vma (objfile->obfd, sect)
+ && entry_point < (bfd_get_section_vma (objfile->obfd, sect)
+ + bfd_get_section_size (sect)))
+ {
+ ei->the_bfd_section_index
+ = gdb_bfd_section_index (objfile->obfd, sect);
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found)
+ ei->the_bfd_section_index = SECT_OFF_TEXT (objfile);
}
}
into an offset from the section VMA's as it appears in the object
file, and then call the file's sym_offsets function to convert this
into a format-specific offset table --- a `struct section_offsets'.
- If ADDRS is non-zero, OFFSETS must be zero.
-
- OFFSETS is a table of section offsets already in the right
- format-specific representation. NUM_OFFSETS is the number of
- elements present in OFFSETS->offsets. If OFFSETS is non-zero, we
- assume this is the proper table the call to sym_offsets described
- above would produce. Instead of calling sym_offsets, we just dump
- it right into objfile->section_offsets. (When we're re-reading
- symbols from an objfile, we don't have the original load address
- list any more; all we have is the section offset table.) If
- OFFSETS is non-zero, ADDRS must be zero.
ADD_FLAGS encodes verbosity level, whether this is main symbol or
an extra symbol file such as dynamically loaded code, and wether
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;
const int mainline = add_flags & SYMFILE_MAINLINE;
- gdb_assert (! (addrs && offsets));
-
- objfile->sf = find_sym_fns (objfile->obfd);
+ objfile_set_sym_fns (objfile, find_sym_fns (objfile->obfd));
if (objfile->sf == NULL)
{
/* No symbols to load, but we still need to make sure
that the section_offsets table is allocated. */
int num_sections = gdb_bfd_count_sections (objfile->obfd);
- size_t size = SIZEOF_N_SECTION_OFFSETS (num_offsets);
+ size_t size = SIZEOF_N_SECTION_OFFSETS (num_sections);
objfile->num_sections = num_sections;
objfile->section_offsets
- = obstack_alloc (&objfile->objfile_obstack, size);
+ = (struct section_offsets *) obstack_alloc (&objfile->objfile_obstack,
+ size);
memset (objfile->section_offsets, 0, size);
return;
}
if an error occurs during symbol reading. */
old_chain = make_cleanup_free_objfile (objfile);
- /* If ADDRS and OFFSETS are both NULL, put together a dummy address
- list. We now establish the convention that an addr of zero means
+ /* If ADDRS is NULL, put together a dummy address list.
+ We now establish the convention that an addr of zero means
no load address was specified. */
- if (! addrs && ! offsets)
+ if (! addrs)
{
local_addr = alloc_section_addr_info (1);
make_cleanup (xfree, local_addr);
addrs = local_addr;
}
- /* Now either addrs or offsets is non-zero. */
-
if (mainline)
{
/* We will modify the main symbol table, make sure that all its users
We no longer warn if the lowest section is not a text segment (as
happens for the PA64 port. */
- if (addrs && addrs->num_sections > 0)
+ if (addrs->num_sections > 0)
addr_info_make_relative (addrs, objfile->obfd);
/* Initialize symbol reading routines for this objfile, allow complaints to
(*objfile->sf->sym_init) (objfile);
clear_complaints (&symfile_complaints, 1, add_flags & SYMFILE_VERBOSE);
- if (addrs)
- (*objfile->sf->sym_offsets) (objfile, addrs);
- else
- {
- size_t size = SIZEOF_N_SECTION_OFFSETS (num_offsets);
-
- /* Just copy in the offset table directly as given to us. */
- objfile->num_sections = num_offsets;
- objfile->section_offsets
- = ((struct section_offsets *)
- obstack_alloc (&objfile->objfile_obstack, size));
- memcpy (objfile->section_offsets, offsets, size);
-
- init_objfile_sect_indices (objfile);
- }
+ (*objfile->sf->sym_offsets) (objfile, addrs);
read_symbols (objfile, add_flags);
/* Same as syms_from_objfile_1, but also initializes the objfile
entry-point info. */
-void
+static 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);
+ syms_from_objfile_1 (objfile, addrs, add_flags);
init_entry_point_info (objfile);
}
symbols for a new objfile, or mapping in the symbols from a reusable
objfile. ADD_FLAGS is a bitmask of enum symfile_add_flags. */
-void
-new_symfile_objfile (struct objfile *objfile, int add_flags)
+static void
+finish_new_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
ABFD is a BFD already open on the file, as from symfile_bfd_open.
A new reference is acquired by this function.
+ For NAME description see allocate_objfile's definition.
+
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 as described for syms_from_objfile_1, 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.
Upon failure, jumps back to command level (never returns). */
static struct objfile *
-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 flags, struct objfile *parent)
+symbol_file_add_with_addrs (bfd *abfd, const char *name, int add_flags,
+ struct section_addr_info *addrs,
+ int flags, struct objfile *parent)
{
struct objfile *objfile;
- 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)
+ const int should_print = (print_symbol_loading_p (from_tty, mainline, 1)
&& (readnow_symbol_files
|| (add_flags & SYMFILE_NO_READ) == 0));
&& !query (_("Load new symbol table from \"%s\"? "), name))
error (_("Not confirmed."));
- objfile = allocate_objfile (abfd, flags | (mainline ? OBJF_MAINLINE : 0));
+ objfile = allocate_objfile (abfd, name,
+ flags | (mainline ? OBJF_MAINLINE : 0));
if (parent)
add_separate_debug_objfile (objfile, parent);
gdb_flush (gdb_stdout);
}
}
- syms_from_objfile (objfile, addrs, offsets, num_offsets,
- add_flags);
+ syms_from_objfile (objfile, addrs, 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
return objfile; /* No symbols. */
}
- new_symfile_objfile (objfile, add_flags);
+ finish_new_objfile (objfile, add_flags);
observer_notify_new_objfile (objfile);
return (objfile);
}
-/* Add BFD as a separate debug file for OBJFILE. */
+/* Add BFD as a separate debug file for OBJFILE. For NAME description
+ see allocate_objfile's definition. */
void
-symbol_file_add_separate (bfd *bfd, int symfile_flags, struct objfile *objfile)
+symbol_file_add_separate (bfd *bfd, const char *name, int symfile_flags,
+ struct objfile *objfile)
{
struct objfile *new_objfile;
struct section_addr_info *sap;
sap = build_section_addr_info_from_objfile (objfile);
my_cleanup = make_cleanup_free_section_addr_info (sap);
- new_objfile = symbol_file_add_with_addrs_or_offsets
- (bfd, symfile_flags,
- sap, NULL, 0,
+ new_objfile = symbol_file_add_with_addrs
+ (bfd, name, symfile_flags, sap,
objfile->flags & (OBJF_REORDERED | OBJF_SHARED | OBJF_READNOW
| OBJF_USERLOADED),
objfile);
/* Process the symbol file ABFD, as either the main file or as a
dynamically loaded file.
+ See symbol_file_add_with_addrs's comments for details. */
- See symbol_file_add_with_addrs_or_offsets's comments for
- details. */
struct objfile *
-symbol_file_add_from_bfd (bfd *abfd, int add_flags,
+symbol_file_add_from_bfd (bfd *abfd, const char *name, int add_flags,
struct section_addr_info *addrs,
int flags, struct objfile *parent)
{
- return symbol_file_add_with_addrs_or_offsets (abfd, add_flags, addrs, 0, 0,
- flags, parent);
+ return symbol_file_add_with_addrs (abfd, name, add_flags, addrs, flags,
+ parent);
}
-
/* Process a symbol file, as either the main file or as a dynamically
- loaded file. See symbol_file_add_with_addrs_or_offsets's comments
- for details. */
+ loaded file. See symbol_file_add_with_addrs's comments for details. */
+
struct objfile *
-symbol_file_add (char *name, int add_flags, struct section_addr_info *addrs,
- int flags)
+symbol_file_add (const char *name, int add_flags,
+ struct section_addr_info *addrs, int 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);
+ objf = symbol_file_add_from_bfd (bfd, name, add_flags, addrs, flags, NULL);
do_cleanups (cleanup);
return objf;
}
-
/* Call symbol_file_add() with default values and update whatever is
affected by the loading of a new main().
Used when the file is supplied in the gdb command line
command itself. */
void
-symbol_file_add_main (char *args, int from_tty)
+symbol_file_add_main (const char *args, int from_tty)
{
symbol_file_add_main_1 (args, from_tty, 0);
}
static void
-symbol_file_add_main_1 (char *args, int from_tty, int flags)
+symbol_file_add_main_1 (const char *args, int from_tty, int flags)
{
const int add_flags = (current_inferior ()->symfile_flags
| SYMFILE_MAINLINE | (from_tty ? SYMFILE_VERBOSE : 0));
&& from_tty
&& (symfile_objfile
? !query (_("Discard symbol table from `%s'? "),
- symfile_objfile->name)
+ objfile_name (symfile_objfile))
: !query (_("Discard symbol table? "))))
error (_("Not confirmed."));
".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 (filename_cmp (name, parent_objfile->name) == 0)
+ if (filename_cmp (name, objfile_name (parent_objfile)) == 0)
return 0;
- abfd = gdb_bfd_open_maybe_remote (name);
+ abfd = gdb_bfd_open (name, gnutarget, -1);
if (!abfd)
return 0;
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. */
+ meaningful st_dev.) Files accessed from gdbservers that do not
+ support the vFile:fstat packet will also have st_ino set to zero.
+ Do not indicate a duplicate library in either 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
&& abfd_stat.st_ino != 0
{
unsigned long parent_crc;
- /* 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 the files could not be verified as different with
+ bfd_stat then we need to calculate the parent's CRC
+ to verify whether the files are different or not. */
if (!verified_as_different)
{
if (verified_as_different || parent_crc != file_crc)
warning (_("the debug information found in \"%s\""
" does not match \"%s\" (CRC mismatch).\n"),
- name, parent_objfile->name);
+ name, objfile_name (parent_objfile));
return 0;
}
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 (debuglink)
- + 1);
+ debugfile
+ = (char *) xmalloc (strlen (debug_file_directory) + 1
+ + i
+ + strlen (DEBUG_SUBDIRECTORY)
+ + strlen ("/")
+ + strlen (debuglink)
+ + 1);
/* First try in the same directory as the original file. */
strcpy (debugfile, dir);
strcat (debugfile, debuglink);
if (separate_debug_file_exists (debugfile, crc32, objfile))
- return debugfile;
+ {
+ do_cleanups (back_to);
+ return debugfile;
+ }
/* If the file is in the sysroot, try using its base path in the
global debugfile directory. */
strcat (debugfile, debuglink);
if (separate_debug_file_exists (debugfile, crc32, objfile))
- return debugfile;
+ {
+ do_cleanups (back_to);
+ return debugfile;
+ }
}
}
}
cleanups = make_cleanup (xfree, debuglink);
- dir = xstrdup (objfile->name);
+ dir = xstrdup (objfile_name (objfile));
make_cleanup (xfree, dir);
terminate_after_last_dir_separator (dir);
canon_dir = lrealpath (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))
+ if (lstat (objfile_name (objfile), &st_buf) == 0
+ && S_ISLNK (st_buf.st_mode))
{
char *symlink_dir;
- symlink_dir = lrealpath (objfile->name);
+ symlink_dir = lrealpath (objfile_name (objfile));
if (symlink_dir != NULL)
{
make_cleanup (xfree, symlink_dir);
}
}
}
-#endif /* HAVE_LSTAT */
}
do_cleanups (cleanups);
return debugfile;
}
-
/* This is the symbol-file command. Read the file, analyze its
symbols, and add a struct symtab to a symtab list. The syntax of
the command is rather bizarre:
void
set_initial_language (void)
{
- enum language lang = language_unknown;
+ enum language lang = main_language ();
- if (language_of_main != language_unknown)
- lang = language_of_main;
- else
+ if (lang == language_unknown)
{
- const char *filename;
+ char *name = main_name ();
+ struct symbol *sym = lookup_symbol (name, NULL, VAR_DOMAIN, NULL).symbol;
- filename = find_main_filename ();
- if (filename != NULL)
- lang = deduce_language_from_filename (filename);
+ if (sym != NULL)
+ lang = SYMBOL_LANGUAGE (sym);
}
if (lang == language_unknown)
expected_language = current_language; /* Don't warn the user. */
}
-/* If NAME is a remote name open the file using remote protocol, otherwise
- open it normally. Returns a new reference to the BFD. On error,
- returns NULL with the BFD error set. */
-
-bfd *
-gdb_bfd_open_maybe_remote (const char *name)
-{
- bfd *result;
-
- if (remote_filename_p (name))
- result = remote_bfd_open (name, gnutarget);
- else
- result = gdb_bfd_open (name, gnutarget, -1);
-
- return result;
-}
-
-
/* 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
absolute). In case of trouble, error() is called. */
bfd *
-symfile_bfd_open (char *name)
+symfile_bfd_open (const char *name)
{
bfd *sym_bfd;
- int desc;
- char *absolute_name;
+ int desc = -1;
+ struct cleanup *back_to = make_cleanup (null_cleanup, 0);
- if (remote_filename_p (name))
+ if (!is_target_filename (name))
{
- sym_bfd = remote_bfd_open (name, gnutarget);
- if (!sym_bfd)
- error (_("`%s': can't open to read symbols: %s."), name,
- bfd_errmsg (bfd_get_error ()));
-
- if (!bfd_check_format (sym_bfd, bfd_object))
- {
- make_cleanup_bfd_unref (sym_bfd);
- error (_("`%s': can't read symbols: %s."), name,
- bfd_errmsg (bfd_get_error ()));
- }
-
- return sym_bfd;
- }
+ char *expanded_name, *absolute_name;
- name = tilde_expand (name); /* Returns 1st new malloc'd copy. */
+ expanded_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, &absolute_name);
+ /* Look down path for it, allocate 2nd new malloc'd copy. */
+ desc = openp (getenv ("PATH"),
+ OPF_TRY_CWD_FIRST | OPF_RETURN_REALPATH,
+ expanded_name, O_RDONLY | O_BINARY, &absolute_name);
#if defined(__GO32__) || defined(_WIN32) || defined (__CYGWIN__)
- if (desc < 0)
- {
- char *exename = alloca (strlen (name) + 5);
+ if (desc < 0)
+ {
+ char *exename = alloca (strlen (expanded_name) + 5);
- strcat (strcpy (exename, name), ".exe");
- desc = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, exename,
- O_RDONLY | O_BINARY, &absolute_name);
- }
+ strcat (strcpy (exename, expanded_name), ".exe");
+ desc = openp (getenv ("PATH"),
+ OPF_TRY_CWD_FIRST | OPF_RETURN_REALPATH,
+ exename, O_RDONLY | O_BINARY, &absolute_name);
+ }
#endif
- if (desc < 0)
- {
- make_cleanup (xfree, name);
- perror_with_name (name);
- }
+ if (desc < 0)
+ {
+ make_cleanup (xfree, expanded_name);
+ perror_with_name (expanded_name);
+ }
- xfree (name);
- name = absolute_name;
- make_cleanup (xfree, name);
+ xfree (expanded_name);
+ make_cleanup (xfree, absolute_name);
+ name = absolute_name;
+ }
sym_bfd = gdb_bfd_open (name, gnutarget, desc);
if (!sym_bfd)
- {
- make_cleanup (xfree, name);
- error (_("`%s': can't open to read symbols: %s."), name,
- bfd_errmsg (bfd_get_error ()));
- }
- bfd_set_cacheable (sym_bfd, 1);
+ error (_("`%s': can't open to read symbols: %s."), name,
+ bfd_errmsg (bfd_get_error ()));
+
+ if (!gdb_bfd_has_target_filename (sym_bfd))
+ bfd_set_cacheable (sym_bfd, 1);
if (!bfd_check_format (sym_bfd, bfd_object))
{
bfd_errmsg (bfd_get_error ()));
}
+ do_cleanups (back_to);
+
return sym_bfd;
}
return -1;
}
-/* Link SF into the global symtab_fns list. Called on startup by the
- _initialize routine in each object file format reader, to register
- information about each format the reader is prepared to handle. */
+/* Link SF into the global symtab_fns list.
+ FLAVOUR is the file format that SF handles.
+ Called on startup by the _initialize routine in each object file format
+ reader, to register information about each format the reader is prepared
+ to handle. */
void
-add_symtab_fns (const struct sym_fns *sf)
+add_symtab_fns (enum bfd_flavour flavour, const struct sym_fns *sf)
{
- VEC_safe_push (sym_fns_ptr, symtab_fns, sf);
+ registered_sym_fns fns = { flavour, sf };
+
+ VEC_safe_push (registered_sym_fns, symtab_fns, &fns);
}
/* Initialize OBJFILE to read symbols from its associated BFD. It
static const struct sym_fns *
find_sym_fns (bfd *abfd)
{
- const struct sym_fns *sf;
+ registered_sym_fns *rsf;
enum bfd_flavour our_flavour = bfd_get_flavour (abfd);
int i;
|| our_flavour == bfd_target_tekhex_flavour)
return NULL; /* No symbols. */
- for (i = 0; VEC_iterate (sym_fns_ptr, symtab_fns, i, sf); ++i)
- if (our_flavour == sf->sym_flavour)
- return sf;
+ for (i = 0; VEC_iterate (registered_sym_fns, symtab_fns, i, rsf); ++i)
+ if (our_flavour == rsf->sym_flavour)
+ return rsf->sym_fns;
error (_("I'm sorry, Dave, I can't do that. Symbol format `%s' unknown."),
bfd_get_target (abfd));
static void
load_command (char *arg, int from_tty)
{
+ struct cleanup *cleanup = make_cleanup (null_cleanup, NULL);
+
dont_repeat ();
/* The user might be reloading because the binary has changed. Take
if (count)
{
/* We need to quote this string so buildargv can pull it apart. */
- char *temp = xmalloc (strlen (arg) + count + 1 );
+ char *temp = (char *) xmalloc (strlen (arg) + count + 1 );
char *ptemp = temp;
char *prev;
/* After re-loading the executable, we don't really know which
overlays are mapped any more. */
overlay_cache_invalid = 1;
+
+ do_cleanups (cleanup);
}
/* This version of "load" should be usable for any target. Currently
might add a verify_memory() method to the target vector and
then use that. remote.c could implement that method using
the ``qCRC'' packet. */
- gdb_byte *check = xmalloc (bytes);
+ gdb_byte *check = (gdb_byte *) xmalloc (bytes);
struct cleanup *verify_cleanups = make_cleanup (xfree, check);
if (target_read_memory (args->lma, check, bytes) != 0)
new_request = VEC_safe_push (memory_write_request_s,
args->requests, NULL);
memset (new_request, 0, sizeof (struct memory_write_request));
- section_data = xcalloc (1, sizeof (struct load_progress_section_data));
+ section_data = XCNEW (struct load_progress_section_data);
new_request->begin = bfd_section_lma (abfd, asec) + args->load_offset;
new_request->end = new_request->begin + size; /* FIXME Should size
be in instead? */
- new_request->data = xmalloc (size);
+ new_request->data = (gdb_byte *) xmalloc (size);
new_request->baton = section_data;
buffer = new_request->data;
}
void
-generic_load (char *args, int from_tty)
+generic_load (const char *args, int from_tty)
{
bfd *loadfile_bfd;
struct timeval start_time, end_time;
{
struct gdbarch *gdbarch = get_current_arch ();
char *filename = NULL;
- int flags = OBJF_USERLOADED;
+ int flags = OBJF_USERLOADED | OBJF_SHARED;
char *arg;
int section_index = 0;
int argcnt = 0;
int expecting_sec_name = 0;
int expecting_sec_addr = 0;
char **argv;
+ struct objfile *objf;
struct sect_opt
{
struct cleanup *my_cleanups = make_cleanup (null_cleanup, NULL);
num_sect_opts = 16;
- sect_opts = (struct sect_opt *) xmalloc (num_sect_opts
- * sizeof (struct sect_opt));
+ sect_opts = XNEWVEC (struct sect_opt, num_sect_opts);
dont_repeat ();
filename = tilde_expand (arg);
make_cleanup (xfree, filename);
}
+ else if (argcnt == 1)
+ {
+ /* The second argument is always the text address at which
+ to load the program. */
+ sect_opts[section_index].name = ".text";
+ sect_opts[section_index].value = arg;
+ if (++section_index >= num_sect_opts)
+ {
+ num_sect_opts *= 2;
+ sect_opts = ((struct sect_opt *)
+ xrealloc (sect_opts,
+ num_sect_opts
+ * sizeof (struct sect_opt)));
+ }
+ }
else
- if (argcnt == 1)
- {
- /* The second argument is always the text address at which
- to load the program. */
- sect_opts[section_index].name = ".text";
- sect_opts[section_index].value = arg;
- if (++section_index >= num_sect_opts)
- {
- num_sect_opts *= 2;
- sect_opts = ((struct sect_opt *)
- xrealloc (sect_opts,
- num_sect_opts
- * sizeof (struct sect_opt)));
- }
- }
- else
- {
- /* It's an option (starting with '-') or it's an argument
- to an option. */
-
- if (*arg == '-')
- {
- if (strcmp (arg, "-readnow") == 0)
- flags |= OBJF_READNOW;
- else if (strcmp (arg, "-s") == 0)
- {
- expecting_sec_name = 1;
- expecting_sec_addr = 1;
- }
- }
- else
- {
- if (expecting_sec_name)
- {
- sect_opts[section_index].name = arg;
- expecting_sec_name = 0;
- }
- else
- if (expecting_sec_addr)
- {
- sect_opts[section_index].value = arg;
- expecting_sec_addr = 0;
- if (++section_index >= num_sect_opts)
- {
- num_sect_opts *= 2;
- sect_opts = ((struct sect_opt *)
- xrealloc (sect_opts,
- num_sect_opts
- * sizeof (struct sect_opt)));
- }
- }
- else
- error (_("USAGE: add-symbol-file <filename> <textaddress>"
- " [-readnow] [-s <secname> <addr>]*"));
- }
- }
+ {
+ /* It's an option (starting with '-') or it's an argument
+ to an option. */
+ if (expecting_sec_name)
+ {
+ sect_opts[section_index].name = arg;
+ expecting_sec_name = 0;
+ }
+ else if (expecting_sec_addr)
+ {
+ sect_opts[section_index].value = arg;
+ expecting_sec_addr = 0;
+ if (++section_index >= num_sect_opts)
+ {
+ num_sect_opts *= 2;
+ sect_opts = ((struct sect_opt *)
+ xrealloc (sect_opts,
+ num_sect_opts
+ * sizeof (struct sect_opt)));
+ }
+ }
+ else if (strcmp (arg, "-readnow") == 0)
+ flags |= OBJF_READNOW;
+ else if (strcmp (arg, "-s") == 0)
+ {
+ expecting_sec_name = 1;
+ expecting_sec_addr = 1;
+ }
+ else
+ error (_("USAGE: add-symbol-file <filename> <textaddress>"
+ " [-readnow] [-s <secname> <addr>]*"));
+ }
}
/* This command takes at least two arguments. The first one is a
if (from_tty && (!query ("%s", "")))
error (_("Not confirmed."));
- symbol_file_add (filename, from_tty ? SYMFILE_VERBOSE : 0,
- section_addrs, flags);
+ objf = symbol_file_add (filename, from_tty ? SYMFILE_VERBOSE : 0,
+ section_addrs, flags);
+
+ add_target_sections_of_objfile (objf);
/* Getting new symbols may change our opinion about what is
frameless. */
}
\f
+/* This function removes a symbol file that was added via add-symbol-file. */
+
+static void
+remove_symbol_file_command (char *args, int from_tty)
+{
+ char **argv;
+ struct objfile *objf = NULL;
+ struct cleanup *my_cleanups;
+ struct program_space *pspace = current_program_space;
+ struct gdbarch *gdbarch = get_current_arch ();
+
+ dont_repeat ();
+
+ if (args == NULL)
+ error (_("remove-symbol-file: no symbol file provided"));
+
+ my_cleanups = make_cleanup (null_cleanup, NULL);
+
+ argv = gdb_buildargv (args);
+
+ if (strcmp (argv[0], "-a") == 0)
+ {
+ /* Interpret the next argument as an address. */
+ CORE_ADDR addr;
+
+ if (argv[1] == NULL)
+ error (_("Missing address argument"));
+
+ if (argv[2] != NULL)
+ error (_("Junk after %s"), argv[1]);
+
+ addr = parse_and_eval_address (argv[1]);
+
+ ALL_OBJFILES (objf)
+ {
+ if ((objf->flags & OBJF_USERLOADED) != 0
+ && (objf->flags & OBJF_SHARED) != 0
+ && objf->pspace == pspace && is_addr_in_objfile (addr, objf))
+ break;
+ }
+ }
+ else if (argv[0] != NULL)
+ {
+ /* Interpret the current argument as a file name. */
+ char *filename;
+
+ if (argv[1] != NULL)
+ error (_("Junk after %s"), argv[0]);
+
+ filename = tilde_expand (argv[0]);
+ make_cleanup (xfree, filename);
+
+ ALL_OBJFILES (objf)
+ {
+ if ((objf->flags & OBJF_USERLOADED) != 0
+ && (objf->flags & OBJF_SHARED) != 0
+ && objf->pspace == pspace
+ && filename_cmp (filename, objfile_name (objf)) == 0)
+ break;
+ }
+ }
+
+ if (objf == NULL)
+ error (_("No symbol file found"));
+
+ if (from_tty
+ && !query (_("Remove symbol table from file \"%s\"? "),
+ objfile_name (objf)))
+ error (_("Not confirmed."));
+
+ free_objfile (objf);
+ clear_symtab_users (0);
+
+ do_cleanups (my_cleanups);
+}
+
typedef struct objfile *objfilep;
DEF_VEC_P (objfilep);
/* Re-read symbols if a symbol-file has changed. */
+
void
reread_symbols (void)
{
for (objfile = object_files; objfile; objfile = objfile->next)
{
- /* solib-sunos.c creates one objfile with obfd. */
if (objfile->obfd == NULL)
continue;
if (objfile->obfd->my_archive)
res = stat (objfile->obfd->my_archive->filename, &new_statbuf);
else
- res = stat (objfile->name, &new_statbuf);
+ res = stat (objfile_name (objfile), &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);
+ objfile_name (objfile));
continue;
}
new_modtime = new_statbuf.st_mtime;
struct cleanup *old_cleanups;
struct section_offsets *offsets;
int num_offsets;
- char *obfd_filename;
+ char *original_name;
printf_unfiltered (_("`%s' has changed; re-reading symbols.\n"),
- objfile->name);
+ objfile_name (objfile));
/* There are various functions like symbol_file_add,
symfile_bfd_open, syms_from_objfile, etc., which might
/* Clean up any state BFD has sitting around. */
{
struct bfd *obfd = objfile->obfd;
+ char *obfd_filename;
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);
+ objfile->obfd = gdb_bfd_open (obfd_filename, gnutarget, -1);
if (objfile->obfd == NULL)
{
/* We have to make a cleanup and error here, rather
gdb_bfd_unref (obfd);
}
- objfile->name = bfd_get_filename (objfile->obfd);
+ original_name = xstrdup (objfile->original_name);
+ make_cleanup (xfree, original_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,
+ error (_("Can't read symbols from %s: %s."), objfile_name (objfile),
bfd_errmsg (bfd_get_error ()));
/* Save the offsets, we will nuke them with the rest of the
/* Free the obstacks for non-reusable objfiles. */
psymbol_bcache_free (objfile->psymbol_cache);
objfile->psymbol_cache = psymbol_bcache_init ();
- 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->compunit_symtabs = NULL;
objfile->psymtabs = NULL;
objfile->psymtabs_addrmap = NULL;
objfile->free_psymtabs = NULL;
objfile->template_symbols = NULL;
- objfile->msymbols = 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));
-
- 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. */
obstack_init (&objfile->objfile_obstack);
+
+ /* set_objfile_per_bfd potentially allocates the per-bfd
+ data on the objfile's obstack (if sharing data across
+ multiple users is not possible), so it's important to
+ do it *after* the obstack has been initialized. */
+ set_objfile_per_bfd (objfile);
+
+ objfile->original_name
+ = (char *) obstack_copy0 (&objfile->objfile_obstack, original_name,
+ strlen (original_name));
+
+ /* Reset the sym_fns pointer. The ELF reader can change it
+ based on whether .gdb_index is present, and we need it to
+ start over. PR symtab/15885 */
+ objfile_set_sym_fns (objfile, find_sym_fns (objfile->obfd));
+
build_objfile_section_table (objfile);
terminate_minimal_symbol_table (objfile);
}
\f
-
typedef struct
{
char *ext;
if (fl_table_next >= fl_table_size)
{
fl_table_size += 10;
- filename_language_table =
- xrealloc (filename_language_table,
- fl_table_size * sizeof (*filename_language_table));
+ filename_language_table = XRESIZEVEC (filename_language,
+ filename_language_table,
+ fl_table_size);
}
filename_language_table[fl_table_next].ext = xstrdup (ext);
{
fl_table_size = 20;
fl_table_next = 0;
- filename_language_table =
- xmalloc (fl_table_size * sizeof (*filename_language_table));
+ filename_language_table = XNEWVEC (filename_language, fl_table_size);
+
add_filename_language (".c", language_c);
add_filename_language (".d", language_d);
add_filename_language (".C", language_cplus);
return language_unknown;
}
\f
-/* allocate_symtab:
-
- Allocate and partly initialize a new symbol table. Return a pointer
- to it. error() if no space.
-
- Caller must set these fields:
- LINETABLE(symtab)
- symtab->blockvector
- symtab->dirname
- symtab->free_code
- symtab->free_ptr
- */
+/* Allocate and initialize a new symbol table.
+ CUST is from the result of allocate_compunit_symtab. */
struct symtab *
-allocate_symtab (const char *filename, struct objfile *objfile)
+allocate_symtab (struct compunit_symtab *cust, const char *filename)
{
- struct symtab *symtab;
+ struct objfile *objfile = cust->objfile;
+ struct symtab *symtab
+ = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct symtab);
- symtab = (struct symtab *)
- obstack_alloc (&objfile->objfile_obstack, sizeof (struct symtab));
- memset (symtab, 0, sizeof (*symtab));
- symtab->filename = (char *) bcache (filename, strlen (filename) + 1,
- objfile->per_bfd->filename_cache);
+ symtab->filename = bcache (filename, strlen (filename) + 1,
+ objfile->per_bfd->filename_cache);
symtab->fullname = NULL;
symtab->language = deduce_language_from_filename (filename);
- symtab->debugformat = "unknown";
-
- /* Hook it to the objfile it comes from. */
- symtab->objfile = objfile;
- symtab->next = objfile->symtabs;
- objfile->symtabs = symtab;
-
- if (symtab_create_debug)
+ /* This can be very verbose with lots of headers.
+ Only print at higher debug levels. */
+ if (symtab_create_debug >= 2)
{
/* 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)
+ || strcmp (last_objfile_name, objfile_name (objfile)) != 0)
{
xfree (last_objfile_name);
- last_objfile_name = xstrdup (objfile->name);
+ last_objfile_name = xstrdup (objfile_name (objfile));
fprintf_unfiltered (gdb_stdlog,
"Creating one or more symtabs for objfile %s ...\n",
last_objfile_name);
host_address_to_string (symtab), filename);
}
- return (symtab);
+ /* Add it to CUST's list of symtabs. */
+ if (cust->filetabs == NULL)
+ {
+ cust->filetabs = symtab;
+ cust->last_filetab = symtab;
+ }
+ else
+ {
+ cust->last_filetab->next = symtab;
+ cust->last_filetab = symtab;
+ }
+
+ /* Backlink to the containing compunit symtab. */
+ symtab->compunit_symtab = cust;
+
+ return symtab;
+}
+
+/* Allocate and initialize a new compunit.
+ NAME is the name of the main source file, if there is one, or some
+ descriptive text if there are no source files. */
+
+struct compunit_symtab *
+allocate_compunit_symtab (struct objfile *objfile, const char *name)
+{
+ struct compunit_symtab *cu = OBSTACK_ZALLOC (&objfile->objfile_obstack,
+ struct compunit_symtab);
+ const char *saved_name;
+
+ cu->objfile = objfile;
+
+ /* The name we record here is only for display/debugging purposes.
+ Just save the basename to avoid path issues (too long for display,
+ relative vs absolute, etc.). */
+ saved_name = lbasename (name);
+ cu->name
+ = (const char *) obstack_copy0 (&objfile->objfile_obstack, saved_name,
+ strlen (saved_name));
+
+ COMPUNIT_DEBUGFORMAT (cu) = "unknown";
+
+ if (symtab_create_debug)
+ {
+ fprintf_unfiltered (gdb_stdlog,
+ "Created compunit symtab %s for %s.\n",
+ host_address_to_string (cu),
+ cu->name);
+ }
+
+ return cu;
+}
+
+/* Hook CU to the objfile it comes from. */
+
+void
+add_compunit_symtab_to_objfile (struct compunit_symtab *cu)
+{
+ cu->next = cu->objfile->compunit_symtabs;
+ cu->objfile->compunit_symtabs = cu;
}
\f
clear_current_source_symtab_and_line ();
clear_displays ();
- if ((add_flags & SYMFILE_DEFER_BP_RESET) == 0)
- breakpoint_re_set ();
clear_last_displayed_sal ();
clear_pc_function_cache ();
observer_notify_new_objfile (NULL);
/* Varobj may refer to old symbols, perform a cleanup. */
varobj_invalidate ();
+ /* Now that the various caches have been cleared, we can re_set
+ our breakpoints without risking it using stale data. */
+ if ((add_flags & SYMFILE_DEFER_BP_RESET) == 0)
+ breakpoint_re_set ();
}
static void
return 0;
}
-
/* Return true if the mapped ranges of sections A and B overlap, false
otherwise. */
+
static int
sections_overlap (struct obj_section *a, struct obj_section *b)
{
return pc;
}
-
/* Function: symbol_overlayed_address
Return one of two addresses (relative to the VMA or to the LMA),
depending on whether the section is mapped or not. */
unmap_overlay_command (char *args, int from_tty)
{
struct objfile *objfile;
- struct obj_section *sec;
+ struct obj_section *sec = NULL;
if (!overlay_debugging)
error (_("Overlay debugging not enabled. "
{
printf_unfiltered
("\"overlay\" must be followed by the name of an overlay command.\n");
- help_list (overlaylist, "overlay ", -1, gdb_stdout);
+ help_list (overlaylist, "overlay ", all_commands, gdb_stdout);
}
-
/* Target Overlays for the "Simplest" overlay manager:
This is GDB's default target overlay layer. It works with the
In this simple implementation, the target data structures are as follows:
unsigned _novlys; /# number of overlay sections #/
unsigned _ovly_table[_novlys][4] = {
- {VMA, SIZE, LMA, MAPPED}, /# one entry per overlay section #/
+ {VMA, OSIZE, LMA, MAPPED}, /# one entry per overlay section #/
{..., ..., ..., ...},
}
unsigned _novly_regions; /# number of overlay regions #/
unsigned _ovly_region_table[_novly_regions][3] = {
- {VMA, SIZE, MAPPED_TO_LMA}, /# one entry per overlay region #/
+ {VMA, OSIZE, MAPPED_TO_LMA}, /# one entry per overlay region #/
{..., ..., ...},
}
These functions will attempt to update GDB's mappedness state in the
static CORE_ADDR cache_ovly_table_base = 0;
enum ovly_index
{
- VMA, SIZE, LMA, MAPPED
+ VMA, OSIZE, LMA, MAPPED
};
/* Throw away the cached copy of _ovly_table. */
+
static void
simple_free_overlay_table (void)
{
/* 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, int size, enum bfd_endian byte_order)
{
/* FIXME (alloca): Not safe if array is very large. */
- gdb_byte *buf = alloca (len * size);
+ gdb_byte *buf = (gdb_byte *) alloca (len * size);
int i;
read_memory (memaddr, buf, len * size);
/* Find and grab a copy of the target _ovly_table
(and _novlys, which is needed for the table's size). */
+
static int
simple_read_overlay_table (void)
{
- struct minimal_symbol *novlys_msym, *ovly_table_msym;
+ struct bound_minimal_symbol novlys_msym;
+ struct bound_minimal_symbol 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);
- if (! novlys_msym)
+ if (! novlys_msym.minsym)
{
error (_("Error reading inferior's overlay table: "
"couldn't find `_novlys' variable\n"
return 0;
}
- ovly_table_msym = lookup_minimal_symbol ("_ovly_table", NULL, NULL);
- if (! ovly_table_msym)
+ ovly_table_msym = lookup_bound_minimal_symbol ("_ovly_table");
+ if (! ovly_table_msym.minsym)
{
error (_("Error reading inferior's overlay table: couldn't find "
"`_ovly_table' array\n"
return 0;
}
- gdbarch = get_objfile_arch (msymbol_objfile (ovly_table_msym));
+ gdbarch = get_objfile_arch (ovly_table_msym.objfile);
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),
+ cache_novlys = read_memory_integer (BMSYMBOL_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);
+ = (unsigned int (*)[4]) xmalloc (cache_novlys * sizeof (*cache_ovly_table));
+ cache_ovly_table_base = BMSYMBOL_VALUE_ADDRESS (ovly_table_msym);
read_target_long_array (cache_ovly_table_base,
(unsigned int *) cache_ovly_table,
cache_novlys * 4, word_size, byte_order);
for (i = 0; i < cache_novlys; i++)
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 */ )
+ /* && cache_ovly_table[i][OSIZE] == size */ )
{
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 */ )
+ /* && cache_ovly_table[i][OSIZE] == size */ )
{
osect->ovly_mapped = cache_ovly_table[i][MAPPED];
return 1;
{
/* Does its cached location match what's currently in the
symtab? */
- struct minimal_symbol *minsym
+ struct bound_minimal_symbol minsym
= lookup_minimal_symbol ("_ovly_table", NULL, NULL);
- if (minsym == NULL)
+ if (minsym.minsym == NULL)
error (_("Error reading inferior's overlay table: couldn't "
"find `_ovly_table' array\n"
"in inferior. Use `overlay manual' mode."));
- if (cache_ovly_table_base == SYMBOL_VALUE_ADDRESS (minsym))
+ if (cache_ovly_table_base == BMSYMBOL_VALUE_ADDRESS (minsym))
/* Then go ahead and try to look up this single section in
the cache. */
if (simple_overlay_update_1 (osect))
for (i = 0; i < cache_novlys; i++)
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 */ )
+ /* && cache_ovly_table[i][OSIZE] == size */ )
{ /* obj_section matches i'th entry in ovly_table. */
osect->ovly_mapped = cache_ovly_table[i][MAPPED];
break; /* finished with inner for loop: break out. */
/* Default implementation for sym_relocate. */
-
bfd_byte *
default_symfile_relocate (struct objfile *objfile, asection *sectp,
bfd_byte *buf)
xfree (data);
}
-
/* Given:
- DATA, containing segment addresses from the object file ABFD, and
the mapping from ABFD's sections onto the segments that own them,
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,
+symfile_map_offsets_to_segments (bfd *abfd,
+ const struct symfile_segment_data *data,
struct section_offsets *offsets,
int num_segment_bases,
const CORE_ADDR *segment_bases)
free_symfile_segment_data (data);
}
+/* Listen for free_objfile events. */
+
+static void
+symfile_free_objfile (struct objfile *objfile)
+{
+ /* Remove the target sections owned by this objfile. */
+ if (objfile != NULL)
+ remove_target_sections ((void *) objfile);
+}
+
+/* Wrapper around the quick_symbol_functions expand_symtabs_matching "method".
+ Expand all symtabs that match the specified criteria.
+ See quick_symbol_functions.expand_symtabs_matching for details. */
+
+void
+expand_symtabs_matching (expand_symtabs_file_matcher_ftype *file_matcher,
+ expand_symtabs_symbol_matcher_ftype *symbol_matcher,
+ expand_symtabs_exp_notify_ftype *expansion_notify,
+ enum search_domain kind,
+ void *data)
+{
+ struct objfile *objfile;
+
+ ALL_OBJFILES (objfile)
+ {
+ if (objfile->sf)
+ objfile->sf->qf->expand_symtabs_matching (objfile, file_matcher,
+ symbol_matcher,
+ expansion_notify, kind,
+ data);
+ }
+}
+
+/* Wrapper around the quick_symbol_functions map_symbol_filenames "method".
+ Map function FUN over every file.
+ See quick_symbol_functions.map_symbol_filenames for details. */
+
+void
+map_symbol_filenames (symbol_filename_ftype *fun, void *data,
+ int need_fullname)
+{
+ struct objfile *objfile;
+
+ ALL_OBJFILES (objfile)
+ {
+ if (objfile->sf)
+ objfile->sf->qf->map_symbol_filenames (objfile, fun, data,
+ need_fullname);
+ }
+}
+
void
_initialize_symfile (void)
{
struct cmd_list_element *c;
+ observer_attach_free_objfile (symfile_free_objfile);
+
c = add_cmd ("symbol-file", class_files, symbol_file_command, _("\
Load symbol table from executable file FILE.\n\
The `file' command can also load symbol tables, as well as setting the file\n\
&cmdlist);
set_cmd_completer (c, filename_completer);
+ c = add_cmd ("remove-symbol-file", class_files,
+ remove_symbol_file_command, _("\
+Remove a symbol file added via the add-symbol-file command.\n\
+Usage: remove-symbol-file FILENAME\n\
+ remove-symbol-file -a ADDRESS\n\
+The file to remove can be identified by its filename or by an address\n\
+that lies within the boundaries of this symbol file in memory."),
+ &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\
NULL,
show_debug_file_directory,
&setlist, &showlist);
+
+ add_setshow_enum_cmd ("symbol-loading", no_class,
+ print_symbol_loading_enums, &print_symbol_loading,
+ _("\
+Set printing of symbol loading messages."), _("\
+Show printing of symbol loading messages."), _("\
+off == turn all messages off\n\
+brief == print messages for the executable,\n\
+ and brief messages for shared libraries\n\
+full == print messages for the executable,\n\
+ and messages for each shared library."),
+ NULL,
+ NULL,
+ &setprintlist, &showprintlist);
}
projects / binutils.git / blobdiff