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authorJan Kratochvil <jan.kratochvil@redhat.com>2013-10-13 16:11:08 +0000
committerJan Kratochvil <jan.kratochvil@redhat.com>2013-10-13 16:11:08 +0000
commit4856b6bc835e25ab0f48462104152701c864858c (patch)
treea9cdb2e19fc8c02072765dbf3ac49043ddbcb4ac /gdb/utils.c
parent690f47bf982493bf41a09238d38e9a934411f214 (diff)
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Improve Executable displayed path (PR 15415 regression kind #2)
gdb/ 2013-10-13 Jan Kratochvil <jan.kratochvil@redhat.com> Canonicalize directories for EXEC_FILENAME. * exec.c (exec_file_attach): Use gdb_realpath_keepfile for exec_filename. * utils.c (gdb_realpath_keepfile): New function. * utils.h (gdb_realpath_keepfile): New declaration. gdb/testsuite/ 2013-10-13 Jan Kratochvil <jan.kratochvil@redhat.com> Canonicalize directories for EXEC_FILENAME. * gdb.base/argv0-symlink.exp (kept file symbolic link name for info inferiors): New. (kept directory symbolic link name): Setup kfail. (kept directory symbolic link name for info inferiors): New.
Diffstat (limited to 'gdb/utils.c')
-rw-r--r--gdb/utils.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/gdb/utils.c b/gdb/utils.c
index 89c248c..47f9dfe 100644
--- a/gdb/utils.c
+++ b/gdb/utils.c
@@ -3233,6 +3233,52 @@ gdb_realpath (const char *filename)
return xstrdup (filename);
}
+/* Return a copy of FILENAME, with its directory prefix canonicalized
+ by gdb_realpath. */
+
+char *
+gdb_realpath_keepfile (const char *filename)
+{
+ const char *base_name = lbasename (filename);
+ char *dir_name;
+ char *real_path;
+ char *result;
+
+ /* Extract the basename of filename, and return immediately
+ a copy of filename if it does not contain any directory prefix. */
+ if (base_name == filename)
+ return xstrdup (filename);
+
+ dir_name = alloca ((size_t) (base_name - filename + 2));
+ /* Allocate enough space to store the dir_name + plus one extra
+ character sometimes needed under Windows (see below), and
+ then the closing \000 character. */
+ strncpy (dir_name, filename, base_name - filename);
+ dir_name[base_name - filename] = '\000';
+
+#ifdef HAVE_DOS_BASED_FILE_SYSTEM
+ /* We need to be careful when filename is of the form 'd:foo', which
+ is equivalent of d:./foo, which is totally different from d:/foo. */
+ if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':')
+ {
+ dir_name[2] = '.';
+ dir_name[3] = '\000';
+ }
+#endif
+
+ /* Canonicalize the directory prefix, and build the resulting
+ filename. If the dirname realpath already contains an ending
+ directory separator, avoid doubling it. */
+ real_path = gdb_realpath (dir_name);
+ if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1]))
+ result = concat (real_path, base_name, (char *) NULL);
+ else
+ result = concat (real_path, SLASH_STRING, base_name, (char *) NULL);
+
+ xfree (real_path);
+ return result;
+}
+
ULONGEST
align_up (ULONGEST v, int n)
{