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authorJan Kratochvil <jan.kratochvil@redhat.com>2012-04-17 15:47:09 +0000
committerJan Kratochvil <jan.kratochvil@redhat.com>2012-04-17 15:47:09 +0000
commite4ab2fad14aace768d2241c2595a29de08deabad (patch)
treecd2e2e7af1c89b6bc4f1e0f660576be30517b5ed /gdb/utils.c
parent5ee4ed9f2eeafe7f0be32e0d197240e2b52c6d41 (diff)
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Code cleanup. * charset.c (find_charset_names): Remove variables ix and elt. Use free_char_ptr_vec. * elfread.c (build_id_to_debug_filename): New variables debugdir_vec, back_to and ix. Use dirnames_to_char_ptr_vec. Remove variable debugdir_end. New variable debugdir_len. * gdb_vecs.h (free_char_ptr_vec, make_cleanup_free_char_ptr_vec) (dirnames_to_char_ptr_vec_append, dirnames_to_char_ptr_vec): New declarations. * progspace.c (clear_program_space_solib_cache): Remove variables ix and elt. Use free_char_ptr_vec. * source.c (add_path): Remove variables argv, arg and argv_index. New variables dir_vec, back_to, ix and name. Use dirnames_to_char_ptr_vec_append. Use freeargv instead of make_cleanup_freeargv. Remove variable separator. Simplify the code no longer expecting DIRNAME_SEPARATOR. (openp): Remove variable p, p1 and len. New variables dir_vec, back_to, ix and dir. Use dirnames_to_char_ptr_vec. Simplify the code no longer expecting DIRNAME_SEPARATOR. * symfile.c (find_separate_debug_file): New variables debugdir_vec, back_to and ix. Use dirnames_to_char_ptr_vec. Remove variable debugdir_end. * utils.c (free_char_ptr_vec, do_free_char_ptr_vec) (make_cleanup_free_char_ptr_vec, dirnames_to_char_ptr_vec_append) (dirnames_to_char_ptr_vec): New functions.
Diffstat (limited to 'gdb/utils.c')
-rw-r--r--gdb/utils.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/gdb/utils.c b/gdb/utils.c
index 1096b3ad..104c5aa 100644
--- a/gdb/utils.c
+++ b/gdb/utils.c
@@ -3802,6 +3802,95 @@ producer_is_gcc_ge_4 (const char *producer)
return minor;
}
+/* Call xfree for each element of CHAR_PTR_VEC and final VEC_free for
+ CHAR_PTR_VEC itself.
+
+ You must not modify CHAR_PTR_VEC after it got registered with this function
+ by make_cleanup as the CHAR_PTR_VEC base address may change on its updates.
+ Contrary to VEC_free this function does not (cannot) clear the pointer. */
+
+void
+free_char_ptr_vec (VEC (char_ptr) *char_ptr_vec)
+{
+ int ix;
+ char *name;
+
+ for (ix = 0; VEC_iterate (char_ptr, char_ptr_vec, ix, name); ++ix)
+ xfree (name);
+ VEC_free (char_ptr, char_ptr_vec);
+}
+
+/* Helper for make_cleanup_free_char_ptr_vec. */
+
+static void
+do_free_char_ptr_vec (void *arg)
+{
+ VEC (char_ptr) *char_ptr_vec = arg;
+
+ free_char_ptr_vec (char_ptr_vec);
+}
+
+/* Make cleanup handler calling xfree for each element of CHAR_PTR_VEC and
+ final VEC_free for CHAR_PTR_VEC itself.
+
+ You must not modify CHAR_PTR_VEC after this cleanup registration as the
+ CHAR_PTR_VEC base address may change on its updates. Contrary to VEC_free
+ this function does not (cannot) clear the pointer. */
+
+struct cleanup *
+make_cleanup_free_char_ptr_vec (VEC (char_ptr) *char_ptr_vec)
+{
+ return make_cleanup (do_free_char_ptr_vec, char_ptr_vec);
+}
+
+/* Extended version of dirnames_to_char_ptr_vec - additionally if *VECP is
+ non-NULL the new list elements from DIRNAMES are appended to the existing
+ *VECP list of entries. *VECP address will be updated by this call. */
+
+void
+dirnames_to_char_ptr_vec_append (VEC (char_ptr) **vecp, const char *dirnames)
+{
+ do
+ {
+ size_t this_len;
+ char *next_dir, *this_dir;
+
+ next_dir = strchr (dirnames, DIRNAME_SEPARATOR);
+ if (next_dir == NULL)
+ this_len = strlen (dirnames);
+ else
+ {
+ this_len = next_dir - dirnames;
+ next_dir++;
+ }
+
+ this_dir = xmalloc (this_len + 1);
+ memcpy (this_dir, dirnames, this_len);
+ this_dir[this_len] = '\0';
+ VEC_safe_push (char_ptr, *vecp, this_dir);
+
+ dirnames = next_dir;
+ }
+ while (dirnames != NULL);
+}
+
+/* Split DIRNAMES by DIRNAME_SEPARATOR delimiter and return a list of all the
+ elements in their original order. For empty string ("") DIRNAMES return
+ list of one empty string ("") element.
+
+ You may modify the returned strings.
+ Read free_char_ptr_vec for its cleanup. */
+
+VEC (char_ptr) *
+dirnames_to_char_ptr_vec (const char *dirnames)
+{
+ VEC (char_ptr) *retval = NULL;
+
+ dirnames_to_char_ptr_vec_append (&retval, dirnames);
+
+ return retval;
+}
+
#ifdef HAVE_WAITPID
#ifdef SIGALRM