Use unique_xmalloc_ptr in find_separate_debug_file_by_debuglink

This changes find_separate_debug_file_by_debuglink to use
unique_xmalloc_ptr, removing some cleanups.

gdb/ChangeLog
2017-11-04  Tom Tromey  <tom@tromey.com>

	* symfile.c (find_separate_debug_file_by_debuglink): Use
	unique_xmalloc_ptr.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index a9eea82..f707be4 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
 2017-11-04  Tom Tromey  <tom@tromey.com>
 
+       * symfile.c (find_separate_debug_file_by_debuglink): Use
+       unique_xmalloc_ptr.
+
+2017-11-04  Tom Tromey  <tom@tromey.com>
+
        * compile/compile-loc2c.c (compute_stack_depth_worker): Change
        type of "info".
        (compute_stack_depth): Likewise.

diff --git a/gdb/symfile.c b/gdb/symfile.c
index 69358e4..dae750e 100644 (file)
--- a/gdb/symfile.c
+++ b/gdb/symfile.c
@@ -1545,13 +1545,11 @@ terminate_after_last_dir_separator (char *path)
 char *
 find_separate_debug_file_by_debuglink (struct objfile *objfile)
 {
-  char *debuglink;
-  char *dir, *canon_dir;
   char *debugfile;
   unsigned long crc32;
-  struct cleanup *cleanups;
 
-  debuglink = bfd_get_debug_link_info (objfile->obfd, &crc32);
+  gdb::unique_xmalloc_ptr<char> debuglink
+    (bfd_get_debug_link_info (objfile->obfd, &crc32));
 
   if (debuglink == NULL)
     {
@@ -1560,15 +1558,12 @@ find_separate_debug_file_by_debuglink (struct objfile *objfile)
       return NULL;
     }
 
-  cleanups = make_cleanup (xfree, debuglink);
-  dir = xstrdup (objfile_name (objfile));
-  make_cleanup (xfree, dir);
-  terminate_after_last_dir_separator (dir);
-  canon_dir = lrealpath (dir);
+  std::string dir = objfile_name (objfile);
+  terminate_after_last_dir_separator (&dir[0]);
+  gdb::unique_xmalloc_ptr<char> canon_dir (lrealpath (dir.c_str ()));
 
-  debugfile = find_separate_debug_file (dir, canon_dir, debuglink,
-                                       crc32, objfile);
-  xfree (canon_dir);
+  debugfile = find_separate_debug_file (dir.c_str (), canon_dir.get (),
+                                       debuglink.get (), crc32, objfile);
 
   if (debugfile == NULL)
     {
@@ -1580,19 +1575,17 @@ find_separate_debug_file_by_debuglink (struct objfile *objfile)
       if (lstat (objfile_name (objfile), &st_buf) == 0
          && S_ISLNK (st_buf.st_mode))
        {
-         char *symlink_dir;
-
-         symlink_dir = lrealpath (objfile_name (objfile));
+         gdb::unique_xmalloc_ptr<char> symlink_dir
+           (lrealpath (objfile_name (objfile)));
          if (symlink_dir != NULL)
            {
-             make_cleanup (xfree, symlink_dir);
-             terminate_after_last_dir_separator (symlink_dir);
-             if (strcmp (dir, symlink_dir) != 0)
+             terminate_after_last_dir_separator (symlink_dir.get ());
+             if (dir != symlink_dir.get ())
                {
                  /* Different directory, so try using it.  */
-                 debugfile = find_separate_debug_file (symlink_dir,
-                                                       symlink_dir,
-                                                       debuglink,
+                 debugfile = find_separate_debug_file (symlink_dir.get (),
+                                                       symlink_dir.get (),
+                                                       debuglink.get (),
                                                        crc32,
                                                        objfile);
                }
@@ -1600,7 +1593,6 @@ find_separate_debug_file_by_debuglink (struct objfile *objfile)
        }
     }
 
-  do_cleanups (cleanups);
   return debugfile;
 }