/* Handle shared libraries for GDB, the GNU Debugger.
- Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
+ 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008, 2009, 2010
+ Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "bfd.h"
#include "symfile.h"
#include "objfiles.h"
+#include "exceptions.h"
#include "gdbcore.h"
#include "command.h"
#include "target.h"
#include "solist.h"
#include "observer.h"
#include "readline/readline.h"
+#include "remote.h"
+#include "solib.h"
+#include "interps.h"
+#include "filesystem.h"
-/* external data declarations */
+/* Architecture-specific operations. */
-/* FIXME: gdbarch needs to control this variable */
-struct target_so_ops *current_target_so_ops;
+/* Per-architecture data key. */
+static struct gdbarch_data *solib_data;
-/* local data declarations */
+static void *
+solib_init (struct obstack *obstack)
+{
+ struct target_so_ops **ops;
-static struct so_list *so_list_head; /* List of known shared objects */
+ ops = OBSTACK_ZALLOC (obstack, struct target_so_ops *);
+ *ops = current_target_so_ops;
+ return ops;
+}
-static int solib_cleanup_queued = 0; /* make_run_cleanup called */
+static struct target_so_ops *
+solib_ops (struct gdbarch *gdbarch)
+{
+ struct target_so_ops **ops = gdbarch_data (gdbarch, solib_data);
-/* Local function prototypes */
+ return *ops;
+}
-static void do_clear_solib (void *);
+/* Set the solib operations for GDBARCH to NEW_OPS. */
-/* If non-zero, this is a prefix that will be added to the front of the name
- shared libraries with an absolute filename for loading. */
-static char *solib_absolute_prefix = NULL;
+void
+set_solib_ops (struct gdbarch *gdbarch, struct target_so_ops *new_ops)
+{
+ struct target_so_ops **ops = gdbarch_data (gdbarch, solib_data);
+
+ *ops = new_ops;
+}
+\f
+
+/* external data declarations */
+
+/* FIXME: gdbarch needs to control this variable, or else every
+ configuration needs to call set_solib_ops. */
+struct target_so_ops *current_target_so_ops;
+
+/* List of known shared objects */
+#define so_list_head current_program_space->so_list
+
+/* Local function prototypes */
/* If non-empty, this is a search path for loading non-absolute shared library
symbol files. This takes precedence over the environment variables PATH
and LD_LIBRARY_PATH. */
static char *solib_search_path = NULL;
+static void
+show_solib_search_path (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("\
+The search path for loading non-absolute shared library symbol files is %s.\n"),
+ value);
+}
+
+/* Same as HAVE_DOS_BASED_FILE_SYSTEM, but useable as an rvalue. */
+#if (HAVE_DOS_BASED_FILE_SYSTEM)
+# define DOS_BASED_FILE_SYSTEM 1
+#else
+# define DOS_BASED_FILE_SYSTEM 0
+#endif
/*
GLOBAL FUNCTION
- solib_open -- Find a shared library file and open it.
+ solib_find -- Find a shared library file.
SYNOPSIS
- int solib_open (char *in_patname, char **found_pathname);
+ char *solib_find (char *in_pathname, int *fd);
DESCRIPTION
- Global variable SOLIB_ABSOLUTE_PREFIX is used as a prefix directory
+ Global variable GDB_SYSROOT is used as a prefix directory
to search for shared libraries if they have an absolute path.
Global variable SOLIB_SEARCH_PATH is used as a prefix directory
(or set of directories, as in LD_LIBRARY_PATH) to search for all
- shared libraries if not found in SOLIB_ABSOLUTE_PREFIX.
+ shared libraries if not found in GDB_SYSROOT.
Search algorithm:
- * If there is a solib_absolute_prefix and path is absolute:
- * Search for solib_absolute_prefix/path.
+ * If there is a gdb_sysroot and path is absolute:
+ * Search for gdb_sysroot/path.
* else
* Look for it literally (unmodified).
* Look in SOLIB_SEARCH_PATH.
* If available, use target defined search function.
- * If solib_absolute_prefix is NOT set, perform the following two searches:
+ * If gdb_sysroot is NOT set, perform the following two searches:
* Look in inferior's $PATH.
* Look in inferior's $LD_LIBRARY_PATH.
- *
+ *
* The last check avoids doing this search when targetting remote
- * machines since solib_absolute_prefix will almost always be set.
+ * machines since gdb_sysroot will almost always be set.
RETURNS
- file handle for opened solib, or -1 for failure. */
+ Full pathname of the shared library file, or NULL if not found.
+ (The pathname is malloc'ed; it needs to be freed by the caller.)
+ *FD is set to either -1 or an open file handle for the library. */
-int
-solib_open (char *in_pathname, char **found_pathname)
+char *
+solib_find (char *in_pathname, int *fd)
{
+ struct target_so_ops *ops = solib_ops (target_gdbarch);
int found_file = -1;
char *temp_pathname = NULL;
- char *p = in_pathname;
+ int gdb_sysroot_is_empty;
+ const char *solib_symbols_extension
+ = gdbarch_solib_symbols_extension (target_gdbarch);
+ const char *fskind = effective_target_file_system_kind ();
+ struct cleanup *old_chain = make_cleanup (null_cleanup, NULL);
+ char *sysroot = NULL;
+
+ /* If solib_symbols_extension is set, replace the file's
+ extension. */
+ if (solib_symbols_extension)
+ {
+ char *p = in_pathname + strlen (in_pathname);
+
+ while (p > in_pathname && *p != '.')
+ p--;
+
+ if (*p == '.')
+ {
+ char *new_pathname;
- while (*p && !IS_DIR_SEPARATOR (*p))
- p++;
+ new_pathname = alloca (p - in_pathname + 1
+ + strlen (solib_symbols_extension) + 1);
+ memcpy (new_pathname, in_pathname, p - in_pathname + 1);
+ strcpy (new_pathname + (p - in_pathname) + 1,
+ solib_symbols_extension);
- if (*p)
+ in_pathname = new_pathname;
+ }
+ }
+
+ gdb_sysroot_is_empty = (gdb_sysroot == NULL || *gdb_sysroot == 0);
+
+ if (!gdb_sysroot_is_empty)
{
- if (! IS_ABSOLUTE_PATH (in_pathname) || solib_absolute_prefix == NULL)
- temp_pathname = in_pathname;
- else
+ int prefix_len = strlen (gdb_sysroot);
+
+ /* Remove trailing slashes from absolute prefix. */
+ while (prefix_len > 0
+ && IS_DIR_SEPARATOR (gdb_sysroot[prefix_len - 1]))
+ prefix_len--;
+
+ sysroot = savestring (gdb_sysroot, prefix_len);
+ make_cleanup (xfree, sysroot);
+ }
+
+ /* If we're on a non-DOS-based system, backslashes won't be
+ understood as directory separator, so, convert them to forward
+ slashes, iff we're supposed to handle DOS-based file system
+ semantics for target paths. */
+ if (!DOS_BASED_FILE_SYSTEM && fskind == file_system_kind_dos_based)
+ {
+ char *p;
+
+ /* Avoid clobbering our input. */
+ p = alloca (strlen (in_pathname) + 1);
+ strcpy (p, in_pathname);
+ in_pathname = p;
+
+ for (; *p; p++)
{
- int prefix_len = strlen (solib_absolute_prefix);
-
- /* Remove trailing slashes from absolute prefix. */
- while (prefix_len > 0
- && IS_DIR_SEPARATOR (solib_absolute_prefix[prefix_len - 1]))
- prefix_len--;
-
- /* Cat the prefixed pathname together. */
- temp_pathname = alloca (prefix_len + strlen (in_pathname) + 1);
- strncpy (temp_pathname, solib_absolute_prefix, prefix_len);
- temp_pathname[prefix_len] = '\0';
- strcat (temp_pathname, in_pathname);
+ if (*p == '\\')
+ *p = '/';
}
+ }
+
+ /* Note, we're interested in IS_TARGET_ABSOLUTE_PATH, not
+ IS_ABSOLUTE_PATH. The latter is for host paths only, while
+ IN_PATHNAME is a target path. For example, if we're supposed to
+ be handling DOS-like semantics we want to consider a
+ 'c:/foo/bar.dll' path as an absolute path, even on a Unix box.
+ With such a path, before giving up on the sysroot, we'll try:
+
+ 1st attempt, c:/foo/bar.dll ==> /sysroot/c:/foo/bar.dll
+ 2nd attempt, c:/foo/bar.dll ==> /sysroot/c/foo/bar.dll
+ 3rd attempt, c:/foo/bar.dll ==> /sysroot/foo/bar.dll
+ */
+
+ if (!IS_TARGET_ABSOLUTE_PATH (fskind, in_pathname) || gdb_sysroot_is_empty)
+ temp_pathname = xstrdup (in_pathname);
+ else
+ {
+ int need_dir_separator;
+
+ need_dir_separator = !IS_DIR_SEPARATOR (in_pathname[0]);
- /* Now see if we can open it. */
- found_file = open (temp_pathname, O_RDONLY, 0);
+ /* Cat the prefixed pathname together. */
+ temp_pathname = concat (sysroot,
+ need_dir_separator ? SLASH_STRING : "",
+ in_pathname, (char *) NULL);
}
- /* If the search in solib_absolute_prefix failed, and the path name is
+ /* Handle remote files. */
+ if (remote_filename_p (temp_pathname))
+ {
+ *fd = -1;
+ return temp_pathname;
+ }
+
+ /* Now see if we can open it. */
+ found_file = open (temp_pathname, O_RDONLY | O_BINARY, 0);
+ if (found_file < 0)
+ xfree (temp_pathname);
+
+ /* If the search in gdb_sysroot failed, and the path name has a
+ drive spec (e.g, c:/foo), try stripping ':' from the drive spec,
+ and retrying in the sysroot:
+ c:/foo/bar.dll ==> /sysroot/c/foo/bar.dll. */
+
+ if (found_file < 0
+ && !gdb_sysroot_is_empty
+ && HAS_TARGET_DRIVE_SPEC (fskind, in_pathname))
+ {
+ int need_dir_separator = !IS_DIR_SEPARATOR (in_pathname[2]);
+ char *drive = savestring (in_pathname, 1);
+
+ temp_pathname = concat (sysroot,
+ SLASH_STRING,
+ drive,
+ need_dir_separator ? SLASH_STRING : "",
+ in_pathname + 2, (char *) NULL);
+ xfree (drive);
+
+ found_file = open (temp_pathname, O_RDONLY | O_BINARY, 0);
+ if (found_file < 0)
+ {
+ xfree (temp_pathname);
+
+ /* If the search in gdb_sysroot still failed, try fully
+ stripping the drive spec, and trying once more in the
+ sysroot before giving up.
+
+ c:/foo/bar.dll ==> /sysroot/foo/bar.dll. */
+
+ temp_pathname = concat (sysroot,
+ need_dir_separator ? SLASH_STRING : "",
+ in_pathname + 2, (char *) NULL);
+
+ found_file = open (temp_pathname, O_RDONLY | O_BINARY, 0);
+ if (found_file < 0)
+ xfree (temp_pathname);
+ }
+ }
+
+ do_cleanups (old_chain);
+
+ /* We try to find the library in various ways. After each attempt,
+ either found_file >= 0 and temp_pathname is a malloc'd string, or
+ found_file < 0 and temp_pathname does not point to storage that
+ needs to be freed. */
+
+ if (found_file < 0)
+ temp_pathname = NULL;
+
+ /* If not found, search the solib_search_path (if any). */
+ if (found_file < 0 && solib_search_path != NULL)
+ found_file = openp (solib_search_path, OPF_TRY_CWD_FIRST,
+ in_pathname, O_RDONLY | O_BINARY, &temp_pathname);
+
+ /* If the search in gdb_sysroot failed, and the path name is
absolute at this point, make it relative. (openp will try and open the
file according to its absolute path otherwise, which is not what we want.)
Affects subsequent searches for this solib. */
- if (found_file < 0 && IS_ABSOLUTE_PATH (in_pathname))
+ if (found_file < 0 && IS_TARGET_ABSOLUTE_PATH (fskind, in_pathname))
{
/* First, get rid of any drive letters etc. */
- while (!IS_DIR_SEPARATOR (*in_pathname))
- in_pathname++;
+ while (!IS_TARGET_DIR_SEPARATOR (fskind, *in_pathname))
+ in_pathname++;
/* Next, get rid of all leading dir separators. */
- while (IS_DIR_SEPARATOR (*in_pathname))
- in_pathname++;
+ while (IS_TARGET_DIR_SEPARATOR (fskind, *in_pathname))
+ in_pathname++;
}
-
+
/* If not found, search the solib_search_path (if any). */
if (found_file < 0 && solib_search_path != NULL)
found_file = openp (solib_search_path, OPF_TRY_CWD_FIRST,
- in_pathname, O_RDONLY, 0, &temp_pathname);
-
+ in_pathname, O_RDONLY | O_BINARY, &temp_pathname);
+
/* If not found, next search the solib_search_path (if any) for the basename
only (ignoring the path). This is to allow reading solibs from a path
that differs from the opened path. */
if (found_file < 0 && solib_search_path != NULL)
found_file = openp (solib_search_path, OPF_TRY_CWD_FIRST,
- lbasename (in_pathname), O_RDONLY, 0,
- &temp_pathname);
+ target_lbasename (fskind, in_pathname),
+ O_RDONLY | O_BINARY, &temp_pathname);
/* If not found, try to use target supplied solib search method */
- if (found_file < 0 && TARGET_SO_FIND_AND_OPEN_SOLIB != NULL)
- found_file = TARGET_SO_FIND_AND_OPEN_SOLIB
- (in_pathname, O_RDONLY, &temp_pathname);
+ if (found_file < 0 && ops->find_and_open_solib)
+ found_file = ops->find_and_open_solib (in_pathname, O_RDONLY | O_BINARY,
+ &temp_pathname);
/* If not found, next search the inferior's $PATH environment variable. */
- if (found_file < 0 && solib_absolute_prefix == NULL)
- found_file = openp (get_in_environ (inferior_environ, "PATH"),
- OPF_TRY_CWD_FIRST, in_pathname, O_RDONLY, 0,
+ if (found_file < 0 && gdb_sysroot_is_empty)
+ found_file = openp (get_in_environ (current_inferior ()->environment,
+ "PATH"),
+ OPF_TRY_CWD_FIRST, in_pathname, O_RDONLY | O_BINARY,
&temp_pathname);
- /* If not found, next search the inferior's $LD_LIBRARY_PATH
+ /* If not found, next search the inferior's $LD_LIBRARY_PATH
environment variable. */
- if (found_file < 0 && solib_absolute_prefix == NULL)
- found_file = openp (get_in_environ (inferior_environ, "LD_LIBRARY_PATH"),
- OPF_TRY_CWD_FIRST, in_pathname, O_RDONLY, 0,
+ if (found_file < 0 && gdb_sysroot_is_empty)
+ found_file = openp (get_in_environ (current_inferior ()->environment,
+ "LD_LIBRARY_PATH"),
+ OPF_TRY_CWD_FIRST, in_pathname, O_RDONLY | O_BINARY,
&temp_pathname);
- /* Done. If not found, tough luck. Return found_file and
- (optionally) found_pathname. */
- if (found_pathname != NULL && temp_pathname != NULL)
- *found_pathname = xstrdup (temp_pathname);
- return found_file;
+ *fd = found_file;
+ return temp_pathname;
+}
+
+/* Open and return a BFD for the shared library PATHNAME. If FD is not -1,
+ it is used as file handle to open the file. Throws an error if the file
+ could not be opened. Handles both local and remote file access.
+
+ PATHNAME must be malloc'ed by the caller. If successful, the new BFD's
+ name will point to it. If unsuccessful, PATHNAME will be freed and the
+ FD will be closed (unless FD was -1). */
+
+bfd *
+solib_bfd_fopen (char *pathname, int fd)
+{
+ bfd *abfd;
+
+ if (remote_filename_p (pathname))
+ {
+ gdb_assert (fd == -1);
+ abfd = remote_bfd_open (pathname, gnutarget);
+ }
+ else
+ {
+ abfd = bfd_fopen (pathname, gnutarget, FOPEN_RB, fd);
+
+ if (abfd)
+ bfd_set_cacheable (abfd, 1);
+ else if (fd != -1)
+ close (fd);
+ }
+
+ if (!abfd)
+ {
+ make_cleanup (xfree, pathname);
+ error (_("Could not open `%s' as an executable file: %s"),
+ pathname, bfd_errmsg (bfd_get_error ()));
+ }
+
+ return abfd;
+}
+
+/* Find shared library PATHNAME and open a BFD for it. */
+
+bfd *
+solib_bfd_open (char *pathname)
+{
+ char *found_pathname;
+ int found_file;
+ bfd *abfd;
+ const struct bfd_arch_info *b;
+
+ /* Search for shared library file. */
+ found_pathname = solib_find (pathname, &found_file);
+ if (found_pathname == NULL)
+ {
+ /* Return failure if the file could not be found, so that we can
+ accumulate messages about missing libraries. */
+ if (errno == ENOENT)
+ return NULL;
+
+ perror_with_name (pathname);
+ }
+
+ /* Open bfd for shared library. */
+ abfd = solib_bfd_fopen (found_pathname, found_file);
+
+ /* Check bfd format. */
+ if (!bfd_check_format (abfd, bfd_object))
+ {
+ bfd_close (abfd);
+ make_cleanup (xfree, found_pathname);
+ error (_("`%s': not in executable format: %s"),
+ found_pathname, bfd_errmsg (bfd_get_error ()));
+ }
+
+ /* Check bfd arch. */
+ b = gdbarch_bfd_arch_info (target_gdbarch);
+ if (!b->compatible (b, bfd_get_arch_info (abfd)))
+ warning (_("`%s': Shared library architecture %s is not compatible "
+ "with target architecture %s."), found_pathname,
+ bfd_get_arch_info (abfd)->printable_name, b->printable_name);
+
+ return abfd;
}
*/
static int
-solib_map_sections (void *arg)
+solib_map_sections (struct so_list *so)
{
- struct so_list *so = (struct so_list *) arg; /* catch_errors bogon */
+ struct target_so_ops *ops = solib_ops (target_gdbarch);
char *filename;
- char *scratch_pathname;
- int scratch_chan;
- struct section_table *p;
+ struct target_section *p;
struct cleanup *old_chain;
bfd *abfd;
filename = tilde_expand (so->so_name);
-
old_chain = make_cleanup (xfree, filename);
- scratch_chan = solib_open (filename, &scratch_pathname);
-
- if (scratch_chan < 0)
- {
- perror_with_name (filename);
- }
+ abfd = ops->bfd_open (filename);
+ do_cleanups (old_chain);
- /* Leave scratch_pathname allocated. abfd->name will point to it. */
- abfd = bfd_fdopenr (scratch_pathname, gnutarget, scratch_chan);
- if (!abfd)
- {
- close (scratch_chan);
- error ("Could not open `%s' as an executable file: %s",
- scratch_pathname, bfd_errmsg (bfd_get_error ()));
- }
+ if (abfd == NULL)
+ return 0;
/* Leave bfd open, core_xfer_memory and "info files" need it. */
- so->abfd = abfd;
- bfd_set_cacheable (abfd, 1);
+ so->abfd = gdb_bfd_ref (abfd);
/* copy full path name into so_name, so that later symbol_file_add
can find it */
- if (strlen (scratch_pathname) >= SO_NAME_MAX_PATH_SIZE)
- error ("Full path name length of shared library exceeds SO_NAME_MAX_PATH_SIZE in so_list structure.");
- strcpy (so->so_name, scratch_pathname);
+ if (strlen (bfd_get_filename (abfd)) >= SO_NAME_MAX_PATH_SIZE)
+ error (_("Shared library file name is too long."));
+ strcpy (so->so_name, bfd_get_filename (abfd));
- if (!bfd_check_format (abfd, bfd_object))
- {
- error ("\"%s\": not in executable format: %s.",
- scratch_pathname, bfd_errmsg (bfd_get_error ()));
- }
if (build_section_table (abfd, &so->sections, &so->sections_end))
{
- error ("Can't find the file sections in `%s': %s",
+ error (_("Can't find the file sections in `%s': %s"),
bfd_get_filename (abfd), bfd_errmsg (bfd_get_error ()));
}
/* Relocate the section binding addresses as recorded in the shared
object's file by the base address to which the object was actually
mapped. */
- TARGET_SO_RELOCATE_SECTION_ADDRESSES (so, p);
- if (strcmp (p->the_bfd_section->name, ".text") == 0)
+ ops->relocate_section_addresses (so, p);
+
+ /* If the target didn't provide information about the address
+ range of the shared object, assume we want the location of
+ the .text section. */
+ if (so->addr_low == 0 && so->addr_high == 0
+ && strcmp (p->the_bfd_section->name, ".text") == 0)
{
- so->textsection = p;
+ so->addr_low = p->addr;
+ so->addr_high = p->endaddr;
}
}
- /* Free the file names, close the file now. */
- do_cleanups (old_chain);
+ /* Add the shared object's sections to the current set of file
+ section tables. Do this immediately after mapping the object so
+ that later nodes in the list can query this object, as is needed
+ in solib-osf.c. */
+ add_target_sections (so->sections, so->sections_end);
- return (1);
+ return 1;
+}
+
+/* Free symbol-file related contents of SO. If we have opened a BFD
+ for SO, close it. If we have placed SO's sections in some target's
+ section table, the caller is responsible for removing them.
+
+ This function doesn't mess with objfiles at all. If there is an
+ objfile associated with SO that needs to be removed, the caller is
+ responsible for taking care of that. */
+
+static void
+free_so_symbols (struct so_list *so)
+{
+ if (so->sections)
+ {
+ xfree (so->sections);
+ so->sections = so->sections_end = NULL;
+ }
+
+ gdb_bfd_unref (so->abfd);
+ so->abfd = NULL;
+
+ /* Our caller closed the objfile, possibly via objfile_purge_solibs. */
+ so->symbols_loaded = 0;
+ so->objfile = NULL;
+
+ so->addr_low = so->addr_high = 0;
+
+ /* Restore the target-supplied file name. SO_NAME may be the path
+ of the symbol file. */
+ strcpy (so->so_name, so->so_original_name);
}
/* LOCAL FUNCTION
void
free_so (struct so_list *so)
{
- char *bfd_filename = 0;
-
- if (so->sections)
- xfree (so->sections);
-
- if (so->abfd)
- {
- bfd_filename = bfd_get_filename (so->abfd);
- if (! bfd_close (so->abfd))
- warning ("cannot close \"%s\": %s",
- bfd_filename, bfd_errmsg (bfd_get_error ()));
- }
+ struct target_so_ops *ops = solib_ops (target_gdbarch);
- if (bfd_filename)
- xfree (bfd_filename);
-
- TARGET_SO_FREE_SO (so);
+ free_so_symbols (so);
+ ops->free_so (so);
xfree (so);
}
return so_list_head;
}
+/* Read in symbols for shared object SO. If SYMFILE_VERBOSE is set in FLAGS,
+ be chatty about it. Return non-zero if any symbols were actually
+ loaded. */
-/* A small stub to get us past the arg-passing pinhole of catch_errors. */
-
-static int
-symbol_add_stub (void *arg)
+int
+solib_read_symbols (struct so_list *so, int flags)
{
- struct so_list *so = (struct so_list *) arg; /* catch_errs bogon */
- struct section_addr_info *sap;
+ const int from_tty = flags & SYMFILE_VERBOSE;
- /* Have we already loaded this shared object? */
- ALL_OBJFILES (so->objfile)
+ if (so->symbols_loaded)
{
- if (strcmp (so->objfile->name, so->so_name) == 0)
- return 1;
+ /* If needed, we've already warned in our caller. */
}
+ else if (so->abfd == NULL)
+ {
+ /* We've already warned about this library, when trying to open
+ it. */
+ }
+ else
+ {
+ volatile struct gdb_exception e;
+
+ TRY_CATCH (e, RETURN_MASK_ERROR)
+ {
+ struct section_addr_info *sap;
- sap = build_section_addr_info_from_section_table (so->sections,
- so->sections_end);
+ /* Have we already loaded this shared object? */
+ ALL_OBJFILES (so->objfile)
+ {
+ if (strcmp (so->objfile->name, so->so_name) == 0)
+ break;
+ }
+ if (so->objfile != NULL)
+ break;
- so->objfile = symbol_file_add (so->so_name, so->from_tty,
- sap, 0, OBJF_SHARED);
- free_section_addr_info (sap);
+ sap = build_section_addr_info_from_section_table (so->sections,
+ so->sections_end);
+ so->objfile = symbol_file_add_from_bfd (so->abfd,
+ flags, sap, OBJF_SHARED);
+ free_section_addr_info (sap);
+ }
- return (1);
-}
+ if (e.reason < 0)
+ {
+ if (from_tty)
+ exception_fprintf
+ (gdb_stderr, e,
+ _("Error while reading shared library symbols:\n"));
+ }
+ else
+ {
+ if (from_tty || info_verbose)
+ printf_unfiltered (_("Loaded symbols for %s\n"), so->so_name);
+ so->symbols_loaded = 1;
+ }
+ return 1;
+ }
+ return 0;
+}
/* LOCAL FUNCTION
static void
update_solib_list (int from_tty, struct target_ops *target)
{
- struct so_list *inferior = TARGET_SO_CURRENT_SOS ();
+ struct target_so_ops *ops = solib_ops (target_gdbarch);
+ struct so_list *inferior = ops->current_sos();
struct so_list *gdb, **gdb_link;
- /* If we are attaching to a running process for which we
- have not opened a symbol file, we may be able to get its
- symbols now! */
- if (attach_flag &&
- symfile_objfile == NULL)
- catch_errors (TARGET_SO_OPEN_SYMBOL_FILE_OBJECT, &from_tty,
- "Error reading attached process's symbol file.\n",
- RETURN_MASK_ALL);
-
- /* Since this function might actually add some elements to the
- so_list_head list, arrange for it to be cleaned up when
- appropriate. */
- if (!solib_cleanup_queued)
+ /* We can reach here due to changing solib-search-path or the
+ sysroot, before having any inferior. */
+ if (target_has_execution && !ptid_equal (inferior_ptid, null_ptid))
{
- make_run_cleanup (do_clear_solib, NULL);
- solib_cleanup_queued = 1;
+ struct inferior *inf = current_inferior ();
+
+ /* If we are attaching to a running process for which we
+ have not opened a symbol file, we may be able to get its
+ symbols now! */
+ if (inf->attach_flag && symfile_objfile == NULL)
+ catch_errors (ops->open_symbol_file_object, &from_tty,
+ "Error reading attached process's symbol file.\n",
+ RETURN_MASK_ALL);
}
/* GDB and the inferior's dynamic linker each maintain their own
the inferior's current list. */
while (i)
{
- if (! strcmp (gdb->so_original_name, i->so_original_name))
- break;
+ if (ops->same)
+ {
+ if (ops->same (gdb, i))
+ break;
+ }
+ else
+ {
+ if (! strcmp (gdb->so_original_name, i->so_original_name))
+ break;
+ }
i_link = &i->next;
i = *i_link;
/* If it's not on the inferior's list, remove it from GDB's tables. */
else
{
- /* Notify any observer that the SO has been unloaded
- before we remove it from the gdb tables. */
+ /* Notify any observer that the shared object has been
+ unloaded before we remove it from GDB's tables. */
observer_notify_solib_unloaded (gdb);
*gdb_link = gdb->next;
to GDB's shared object list. */
if (inferior)
{
+ int not_found = 0;
+ const char *not_found_filename = NULL;
+
struct so_list *i;
/* Add the new shared objects to GDB's list. */
/* Fill in the rest of each of the `struct so_list' nodes. */
for (i = inferior; i; i = i->next)
{
- i->from_tty = from_tty;
-
- /* Fill in the rest of the `struct so_list' node. */
- catch_errors (solib_map_sections, i,
- "Error while mapping shared library sections:\n",
- RETURN_MASK_ALL);
-
- /* If requested, add the shared object's sections to the TARGET's
- section table. Do this immediately after mapping the object so
- that later nodes in the list can query this object, as is needed
- in solib-osf.c. */
- if (target)
+ volatile struct gdb_exception e;
+
+ i->pspace = current_program_space;
+
+ TRY_CATCH (e, RETURN_MASK_ERROR)
{
- int count = (i->sections_end - i->sections);
- if (count > 0)
+ /* Fill in the rest of the `struct so_list' node. */
+ if (!solib_map_sections (i))
{
- int space = target_resize_to_sections (target, count);
- memcpy (target->to_sections + space,
- i->sections,
- count * sizeof (i->sections[0]));
+ not_found++;
+ if (not_found_filename == NULL)
+ not_found_filename = i->so_original_name;
}
}
+
+ if (e.reason < 0)
+ exception_fprintf (gdb_stderr, e, _("\
+Error while mapping shared library sections:\n"));
+
+ /* Notify any observer that the shared object has been
+ loaded now that we've added it to GDB's tables. */
+ observer_notify_solib_loaded (i);
}
+
+ /* If a library was not found, issue an appropriate warning
+ message. We have to use a single call to warning in case the
+ front end does something special with warnings, e.g., pop up
+ a dialog box. It Would Be Nice if we could get a "warning: "
+ prefix on each line in the CLI front end, though - it doesn't
+ stand out well. */
+
+ if (not_found == 1)
+ warning (_("\
+Could not load shared library symbols for %s.\n\
+Do you need \"set solib-search-path\" or \"set sysroot\"?"),
+ not_found_filename);
+ else if (not_found > 1)
+ warning (_("\
+Could not load shared library symbols for %d libraries, e.g. %s.\n\
+Use the \"info sharedlibrary\" command to see the complete listing.\n\
+Do you need \"set solib-search-path\" or \"set sysroot\"?"),
+ not_found, not_found_filename);
}
}
+/* Return non-zero if NAME is the libpthread shared library.
+
+ Uses a fairly simplistic heuristic approach where we check
+ the file name against "/libpthread". This can lead to false
+ positives, but this should be good enough in practice. */
+
+int
+libpthread_name_p (const char *name)
+{
+ return (strstr (name, "/libpthread") != NULL);
+}
+
+/* Return non-zero if SO is the libpthread shared library. */
+
+static int
+libpthread_solib_p (struct so_list *so)
+{
+ return libpthread_name_p (so->so_name);
+}
+
/* GLOBAL FUNCTION
solib_add -- read in symbol info for newly added shared libraries
char *re_err = re_comp (pattern);
if (re_err)
- error ("Invalid regexp: %s", re_err);
+ error (_("Invalid regexp: %s"), re_err);
}
update_solib_list (from_tty, target);
{
int any_matches = 0;
int loaded_any_symbols = 0;
+ const int flags =
+ SYMFILE_DEFER_BP_RESET | (from_tty ? SYMFILE_VERBOSE : 0);
for (gdb = so_list_head; gdb; gdb = gdb->next)
if (! pattern || re_exec (gdb->so_name))
{
- any_matches = 1;
+ /* Normally, we would read the symbols from that library
+ only if READSYMS is set. However, we're making a small
+ exception for the pthread library, because we sometimes
+ need the library symbols to be loaded in order to provide
+ thread support (x86-linux for instance). */
+ const int add_this_solib =
+ (readsyms || libpthread_solib_p (gdb));
- if (gdb->symbols_loaded)
- {
- if (from_tty)
- printf_unfiltered ("Symbols already loaded for %s\n",
- gdb->so_name);
- }
- else if (readsyms)
+ any_matches = 1;
+ if (add_this_solib)
{
- if (catch_errors
- (symbol_add_stub, gdb,
- "Error while reading shared library symbols:\n",
- RETURN_MASK_ALL))
+ if (gdb->symbols_loaded)
{
- if (from_tty)
- printf_unfiltered ("Loaded symbols for %s\n",
+ /* If no pattern was given, be quiet for shared
+ libraries we have already loaded. */
+ if (pattern && (from_tty || info_verbose))
+ printf_unfiltered (_("Symbols already loaded for %s\n"),
gdb->so_name);
- gdb->symbols_loaded = 1;
- loaded_any_symbols = 1;
}
+ else if (solib_read_symbols (gdb, flags))
+ loaded_any_symbols = 1;
}
}
+ if (loaded_any_symbols)
+ breakpoint_re_set ();
+
if (from_tty && pattern && ! any_matches)
printf_unfiltered
("No loaded shared libraries match the pattern `%s'.\n", pattern);
if (loaded_any_symbols)
{
+ struct target_so_ops *ops = solib_ops (target_gdbarch);
+
/* Getting new symbols may change our opinion about what is
frameless. */
reinit_frame_cache ();
- TARGET_SO_SPECIAL_SYMBOL_HANDLING ();
+ ops->special_symbol_handling ();
}
}
}
DESCRIPTION
Walk through the shared library list and print information
- about each attached library.
+ about each attached library matching PATTERN. If PATTERN is elided,
+ print them all.
*/
static void
-info_sharedlibrary_command (char *ignore, int from_tty)
+info_sharedlibrary_command (char *pattern, int from_tty)
{
struct so_list *so = NULL; /* link map state variable */
- int header_done = 0;
+ int so_missing_debug_info = 0;
int addr_width;
+ int nr_libs;
+ struct cleanup *table_cleanup;
+ struct gdbarch *gdbarch = target_gdbarch;
- if (TARGET_PTR_BIT == 32)
- addr_width = 8 + 4;
- else if (TARGET_PTR_BIT == 64)
- addr_width = 16 + 4;
- else
+ if (pattern)
{
- internal_error (__FILE__, __LINE__,
- "TARGET_PTR_BIT returned unknown size %d",
- TARGET_PTR_BIT);
+ char *re_err = re_comp (pattern);
+
+ if (re_err)
+ error (_("Invalid regexp: %s"), re_err);
}
+ /* "0x", a little whitespace, and two hex digits per byte of pointers. */
+ addr_width = 4 + (gdbarch_ptr_bit (gdbarch) / 4);
+
update_solib_list (from_tty, 0);
- for (so = so_list_head; so; so = so->next)
+ /* make_cleanup_ui_out_table_begin_end needs to know the number of
+ rows, so we need to make two passes over the libs. */
+
+ for (nr_libs = 0, so = so_list_head; so; so = so->next)
{
if (so->so_name[0])
{
- if (!header_done)
- {
- printf_unfiltered ("%-*s%-*s%-12s%s\n", addr_width, "From",
- addr_width, "To", "Syms Read",
- "Shared Object Library");
- header_done++;
- }
+ if (pattern && ! re_exec (so->so_name))
+ continue;
+ ++nr_libs;
+ }
+ }
+
+ table_cleanup =
+ make_cleanup_ui_out_table_begin_end (uiout, 4, nr_libs,
+ "SharedLibraryTable");
+
+ /* The "- 1" is because ui_out adds one space between columns. */
+ ui_out_table_header (uiout, addr_width - 1, ui_left, "from", "From");
+ ui_out_table_header (uiout, addr_width - 1, ui_left, "to", "To");
+ ui_out_table_header (uiout, 12 - 1, ui_left, "syms-read", "Syms Read");
+ ui_out_table_header (uiout, 0, ui_noalign,
+ "name", "Shared Object Library");
- printf_unfiltered ("%-*s", addr_width,
- so->textsection != NULL
- ? hex_string_custom (
- (LONGEST) so->textsection->addr,
- addr_width - 4)
- : "");
- printf_unfiltered ("%-*s", addr_width,
- so->textsection != NULL
- ? hex_string_custom (
- (LONGEST) so->textsection->endaddr,
- addr_width - 4)
- : "");
- printf_unfiltered ("%-12s", so->symbols_loaded ? "Yes" : "No");
- printf_unfiltered ("%s\n", so->so_name);
+ ui_out_table_body (uiout);
+
+ for (so = so_list_head; so; so = so->next)
+ {
+ struct cleanup *lib_cleanup;
+
+ if (! so->so_name[0])
+ continue;
+ if (pattern && ! re_exec (so->so_name))
+ continue;
+
+ lib_cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, "lib");
+
+ if (so->addr_high != 0)
+ {
+ ui_out_field_core_addr (uiout, "from", gdbarch, so->addr_low);
+ ui_out_field_core_addr (uiout, "to", gdbarch, so->addr_high);
+ }
+ else
+ {
+ ui_out_field_skip (uiout, "from");
+ ui_out_field_skip (uiout, "to");
}
+
+ if (! ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ()))
+ && so->symbols_loaded
+ && !objfile_has_symbols (so->objfile))
+ {
+ so_missing_debug_info = 1;
+ ui_out_field_string (uiout, "syms-read", "Yes (*)");
+ }
+ else
+ ui_out_field_string (uiout, "syms-read",
+ so->symbols_loaded ? "Yes" : "No");
+
+ ui_out_field_string (uiout, "name", so->so_name);
+
+ ui_out_text (uiout, "\n");
+
+ do_cleanups (lib_cleanup);
+ }
+
+ do_cleanups (table_cleanup);
+
+ if (nr_libs == 0)
+ {
+ if (pattern)
+ ui_out_message (uiout, 0,
+ _("No shared libraries matched.\n"));
+ else
+ ui_out_message (uiout, 0,
+ _("No shared libraries loaded at this time.\n"));
}
- if (so_list_head == NULL)
+ else
{
- printf_unfiltered ("No shared libraries loaded at this time.\n");
+ if (so_missing_debug_info)
+ ui_out_message (uiout, 0,
+ _("(*): Shared library is missing debugging information.\n"));
}
}
+/* Return 1 if ADDRESS lies within SOLIB. */
+
+int
+solib_contains_address_p (const struct so_list *const solib,
+ CORE_ADDR address)
+{
+ struct target_section *p;
+
+ for (p = solib->sections; p < solib->sections_end; p++)
+ if (p->addr <= address && address < p->endaddr)
+ return 1;
+
+ return 0;
+}
+
/*
GLOBAL FUNCTION
- solib_address -- check to see if an address is in a shared lib
+ solib_name_from_address -- if an address is in a shared lib, return
+ its name.
SYNOPSIS
- char * solib_address (CORE_ADDR address)
+ char * solib_name_from_address (CORE_ADDR address)
DESCRIPTION
*/
char *
-solib_address (CORE_ADDR address)
+solib_name_from_address (struct program_space *pspace, CORE_ADDR address)
{
- struct so_list *so = 0; /* link map state variable */
+ struct so_list *so = NULL;
- for (so = so_list_head; so; so = so->next)
- {
- struct section_table *p;
-
- for (p = so->sections; p < so->sections_end; p++)
- {
- if (p->addr <= address && address < p->endaddr)
- return (so->so_name);
- }
- }
+ for (so = pspace->so_list; so; so = so->next)
+ if (solib_contains_address_p (so, address))
+ return (so->so_name);
return (0);
}
+/* Return whether the data starting at VADDR, size SIZE, must be kept
+ in a core file for shared libraries loaded before "gcore" is used
+ to be handled correctly when the core file is loaded. This only
+ applies when the section would otherwise not be kept in the core
+ file (in particular, for readonly sections). */
+
+int
+solib_keep_data_in_core (CORE_ADDR vaddr, unsigned long size)
+{
+ struct target_so_ops *ops = solib_ops (target_gdbarch);
+
+ if (ops->keep_data_in_core)
+ return ops->keep_data_in_core (vaddr, size);
+ else
+ return 0;
+}
+
/* Called by free_all_symtabs */
void
clear_solib (void)
{
+ struct target_so_ops *ops = solib_ops (target_gdbarch);
+
/* This function is expected to handle ELF shared libraries. It is
also used on Solaris, which can run either ELF or a.out binaries
(for compatibility with SunOS 4), both of which can use shared
So: disable breakpoints only if we're using ELF shared libs. */
if (exec_bfd != NULL
&& bfd_get_flavour (exec_bfd) != bfd_target_aout_flavour)
- disable_breakpoints_in_shlibs (1);
+ disable_breakpoints_in_shlibs ();
while (so_list_head)
{
struct so_list *so = so_list_head;
+
so_list_head = so->next;
+ observer_notify_solib_unloaded (so);
if (so->abfd)
remove_target_sections (so->abfd);
free_so (so);
}
- TARGET_SO_CLEAR_SOLIB ();
-}
-
-static void
-do_clear_solib (void *dummy)
-{
- solib_cleanup_queued = 0;
- clear_solib ();
+ ops->clear_solib ();
}
/* GLOBAL FUNCTION
SYNOPSIS
- void solib_create_inferior_hook()
+ void solib_create_inferior_hook (int from_tty)
DESCRIPTION
SOLIB_CREATE_INFERIOR_HOOK. */
void
-solib_create_inferior_hook (void)
+solib_create_inferior_hook (int from_tty)
{
- TARGET_SO_SOLIB_CREATE_INFERIOR_HOOK ();
+ struct target_so_ops *ops = solib_ops (target_gdbarch);
+
+ ops->solib_create_inferior_hook (from_tty);
}
/* GLOBAL FUNCTION
int
in_solib_dynsym_resolve_code (CORE_ADDR pc)
{
- return TARGET_SO_IN_DYNSYM_RESOLVE_CODE (pc);
+ struct target_so_ops *ops = solib_ops (target_gdbarch);
+
+ return ops->in_dynsym_resolve_code (pc);
}
/*
void
no_shared_libraries (char *ignored, int from_tty)
{
+ /* The order of the two routines below is important: clear_solib notifies
+ the solib_unloaded observers, and some of these observers might need
+ access to their associated objfiles. Therefore, we can not purge the
+ solibs' objfiles before clear_solib has been called. */
+
+ clear_solib ();
objfile_purge_solibs ();
- do_clear_solib (NULL);
+}
+
+/* Reload shared libraries, but avoid reloading the same symbol file
+ we already have loaded. */
+
+static void
+reload_shared_libraries_1 (int from_tty)
+{
+ struct so_list *so;
+ struct cleanup *old_chain = make_cleanup (null_cleanup, NULL);
+
+ for (so = so_list_head; so != NULL; so = so->next)
+ {
+ char *filename, *found_pathname = NULL;
+ bfd *abfd;
+ int was_loaded = so->symbols_loaded;
+ const int flags =
+ SYMFILE_DEFER_BP_RESET | (from_tty ? SYMFILE_VERBOSE : 0);
+
+ filename = tilde_expand (so->so_original_name);
+ abfd = solib_bfd_open (filename);
+ if (abfd != NULL)
+ {
+ found_pathname = xstrdup (bfd_get_filename (abfd));
+ make_cleanup (xfree, found_pathname);
+ gdb_bfd_close_or_warn (abfd);
+ }
+
+ /* If this shared library is no longer associated with its previous
+ symbol file, close that. */
+ if ((found_pathname == NULL && was_loaded)
+ || (found_pathname != NULL
+ && strcmp (found_pathname, so->so_name) != 0))
+ {
+ if (so->objfile && ! (so->objfile->flags & OBJF_USERLOADED))
+ free_objfile (so->objfile);
+ remove_target_sections (so->abfd);
+ free_so_symbols (so);
+ }
+
+ /* If this shared library is now associated with a new symbol
+ file, open it. */
+ if (found_pathname != NULL
+ && (!was_loaded
+ || strcmp (found_pathname, so->so_name) != 0))
+ {
+ volatile struct gdb_exception e;
+
+ TRY_CATCH (e, RETURN_MASK_ERROR)
+ solib_map_sections (so);
+
+ if (e.reason < 0)
+ exception_fprintf (gdb_stderr, e, _("\
+Error while mapping shared library sections:\n"));
+ else if (auto_solib_add || was_loaded || libpthread_solib_p (so))
+ solib_read_symbols (so, flags);
+ }
+ }
+
+ do_cleanups (old_chain);
}
static void
-reload_shared_libraries (char *ignored, int from_tty)
+reload_shared_libraries (char *ignored, int from_tty,
+ struct cmd_list_element *e)
{
- no_shared_libraries (NULL, from_tty);
- solib_add (NULL, from_tty, NULL, auto_solib_add);
+ struct target_so_ops *ops;
+
+ reload_shared_libraries_1 (from_tty);
+
+ ops = solib_ops (target_gdbarch);
+
+ /* Creating inferior hooks here has two purposes. First, if we reload
+ shared libraries then the address of solib breakpoint we've computed
+ previously might be no longer valid. For example, if we forgot to set
+ solib-absolute-prefix and are setting it right now, then the previous
+ breakpoint address is plain wrong. Second, installing solib hooks
+ also implicitly figures were ld.so is and loads symbols for it.
+ Absent this call, if we've just connected to a target and set
+ solib-absolute-prefix or solib-search-path, we'll lose all information
+ about ld.so. */
+ if (target_has_execution)
+ {
+ /* Reset or free private data structures not associated with
+ so_list entries. */
+ ops->clear_solib ();
+
+ /* Remove any previous solib event breakpoint. This is usually
+ done in common code, at breakpoint_init_inferior time, but
+ we're not really starting up the inferior here. */
+ remove_solib_event_breakpoints ();
+
+#ifdef SOLIB_CREATE_INFERIOR_HOOK
+ SOLIB_CREATE_INFERIOR_HOOK (PIDGET (inferior_ptid));
+#else
+ solib_create_inferior_hook (from_tty);
+#endif
+ }
+
+ /* Sometimes the platform-specific hook loads initial shared
+ libraries, and sometimes it doesn't. If it doesn't FROM_TTY will be
+ incorrectly 0 but such solib targets should be fixed anyway. If we
+ made all the inferior hook methods consistent, this call could be
+ removed. Call it only after the solib target has been initialized by
+ solib_create_inferior_hook. */
+
+ solib_add (NULL, 0, NULL, auto_solib_add);
+
+ breakpoint_re_set ();
+
+ /* We may have loaded or unloaded debug info for some (or all)
+ shared libraries. However, frames may still reference them. For
+ example, a frame's unwinder might still point at DWARF FDE
+ structures that are now freed. Also, getting new symbols may
+ change our opinion about what is frameless. */
+ reinit_frame_cache ();
+
+ ops->special_symbol_handling ();
+}
+
+static void
+show_auto_solib_add (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
+{
+ fprintf_filtered (file, _("Autoloading of shared library symbols is %s.\n"),
+ value);
}
+
+/* Handler for library-specific lookup of global symbol NAME in OBJFILE. Call
+ the library-specific handler if it is installed for the current target. */
+
+struct symbol *
+solib_global_lookup (const struct objfile *objfile,
+ const char *name,
+ const domain_enum domain)
+{
+ struct target_so_ops *ops = solib_ops (target_gdbarch);
+
+ if (ops->lookup_lib_global_symbol != NULL)
+ return ops->lookup_lib_global_symbol (objfile, name, domain);
+ return NULL;
+}
+
+
extern initialize_file_ftype _initialize_solib; /* -Wmissing-prototypes */
void
_initialize_solib (void)
{
- struct cmd_list_element *c;
+ solib_data = gdbarch_data_register_pre_init (solib_init);
add_com ("sharedlibrary", class_files, sharedlibrary_command,
- "Load shared object library symbols for files matching REGEXP.");
+ _("Load shared object library symbols for files matching REGEXP."));
add_info ("sharedlibrary", info_sharedlibrary_command,
- "Status of loaded shared object libraries.");
+ _("Status of loaded shared object libraries."));
add_com ("nosharedlibrary", class_files, no_shared_libraries,
- "Unload all shared object library symbols.");
+ _("Unload all shared object library symbols."));
- deprecated_add_show_from_set
- (add_set_cmd ("auto-solib-add", class_support, var_boolean,
- (char *) &auto_solib_add,
- "Set autoloading of shared library symbols.\n\
+ add_setshow_boolean_cmd ("auto-solib-add", class_support,
+ &auto_solib_add, _("\
+Set autoloading of shared library symbols."), _("\
+Show autoloading of shared library symbols."), _("\
If \"on\", symbols from all shared object libraries will be loaded\n\
automatically when the inferior begins execution, when the dynamic linker\n\
informs gdb that a new library has been loaded, or when attaching to the\n\
-inferior. Otherwise, symbols must be loaded manually, using `sharedlibrary'.",
- &setlist),
- &showlist);
-
- c = add_set_cmd ("solib-absolute-prefix", class_support, var_filename,
- (char *) &solib_absolute_prefix,
- "Set prefix for loading absolute shared library symbol files.\n\
-For other (relative) files, you can add values using `set solib-search-path'.",
- &setlist);
- deprecated_add_show_from_set (c, &showlist);
- set_cmd_cfunc (c, reload_shared_libraries);
- set_cmd_completer (c, filename_completer);
-
- /* Set the default value of "solib-absolute-prefix" from the sysroot, if
- one is set. */
- solib_absolute_prefix = xstrdup (gdb_sysroot);
-
- c = add_set_cmd ("solib-search-path", class_support, var_string,
- (char *) &solib_search_path,
- "Set the search path for loading non-absolute shared library symbol files.\n\
-This takes precedence over the environment variables PATH and LD_LIBRARY_PATH.",
- &setlist);
- deprecated_add_show_from_set (c, &showlist);
- set_cmd_cfunc (c, reload_shared_libraries);
- set_cmd_completer (c, filename_completer);
+inferior. Otherwise, symbols must be loaded manually, using `sharedlibrary'."),
+ NULL,
+ show_auto_solib_add,
+ &setlist, &showlist);
+
+ add_setshow_filename_cmd ("sysroot", class_support,
+ &gdb_sysroot, _("\
+Set an alternate system root."), _("\
+Show the current system root."), _("\
+The system root is used to load absolute shared library symbol files.\n\
+For other (relative) files, you can add directories using\n\
+`set solib-search-path'."),
+ reload_shared_libraries,
+ NULL,
+ &setlist, &showlist);
+
+ add_alias_cmd ("solib-absolute-prefix", "sysroot", class_support, 0,
+ &setlist);
+ add_alias_cmd ("solib-absolute-prefix", "sysroot", class_support, 0,
+ &showlist);
+
+ add_setshow_optional_filename_cmd ("solib-search-path", class_support,
+ &solib_search_path, _("\
+Set the search path for loading non-absolute shared library symbol files."), _("\
+Show the search path for loading non-absolute shared library symbol files."), _("\
+This takes precedence over the environment variables PATH and LD_LIBRARY_PATH."),
+ reload_shared_libraries,
+ show_solib_search_path,
+ &setlist, &showlist);
}
projects / deliverable / binutils-gdb.git / blobdiff