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* linux-thread-db.c (try_thread_db_load_from_pdir_1): New function.

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(try_thread_db_load_from_pdir): Call it.  If unable to find
	libthread_db in directory of libpthread, see if we're looking at
	the separate-debug-info copy.
This commit is contained in:
Doug Evans 2011-05-16 02:22:39 +00:00
parent cd6eee13df
commit 290351b813
2 changed files with 44 additions and 20 deletions
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5
gdb/ChangeLog
View File

@ -1,5 +1,10 @@
2011-05-15 Doug Evans <dje@google.com>
* linux-thread-db.c (try_thread_db_load_from_pdir_1): New function.
(try_thread_db_load_from_pdir): Call it. If unable to find
libthread_db in directory of libpthread, see if we're looking at
the separate-debug-info copy.
* python/py-autoload.c (print_script): Print "Missing" instead of
"No" for missing scripts.
(info_auto_load_scripts): Tweak "Loaded" column to fit "Missing".

59
gdb/linux-thread-db.c
View File

@ -812,6 +812,38 @@ try_thread_db_load (const char *library)
return 0;
}
/* Subroutine of try_thread_db_load_from_pdir to simplify it.
Try loading libthread_db from the same directory as OBJ.
The result is true for success. */
static int
try_thread_db_load_from_pdir_1 (struct objfile *obj)
{
char path[PATH_MAX], *cp;
gdb_assert (strlen (obj->name) < sizeof (path));
strcpy (path, obj->name);
cp = strrchr (path, '/');
if (cp == NULL)
{
warning (_("Expected absolute pathname for libpthread in the"
" inferior, but got %s."), path);
return 0;
}
else if (cp + 1 + strlen (LIBTHREAD_DB_SO) + 1 > path + sizeof (path))
{
warning (_("Unexpected: path to libpthread in the inferior is"
" too long: %s"), path);
return 0;
}
else
{
strcpy (cp + 1, LIBTHREAD_DB_SO);
return try_thread_db_load (path);
}
}
/* Handle $pdir in libthread-db-search-path.
Look for libthread_db in the directory of libpthread.
The result is true for success. */
@ -824,28 +856,15 @@ try_thread_db_load_from_pdir (void)
ALL_OBJFILES (obj)
if (libpthread_name_p (obj->name))
{
char path[PATH_MAX], *cp;
if (try_thread_db_load_from_pdir_1 (obj))
return 1;
gdb_assert (strlen (obj->name) < sizeof (path));
strcpy (path, obj->name);
cp = strrchr (path, '/');
/* We may have found the separate-debug-info version of
libpthread, and it may live in a directory without a matching
libthread_db. */
if (obj->separate_debug_objfile_backlink != NULL)
return try_thread_db_load_from_pdir_1 (obj->separate_debug_objfile_backlink);
if (cp == NULL)
{
warning (_("Expected absolute pathname for libpthread in the"
" inferior, but got %s."), path);
}
else if (cp + 1 + strlen (LIBTHREAD_DB_SO) + 1 > path + sizeof (path))
{
warning (_("Unexpected: path to libpthread in the inferior is"
" too long: %s"), path);
}
else
{
strcpy (cp + 1, LIBTHREAD_DB_SO);
if (try_thread_db_load (path))
return 1;
}
return 0;
}