[patch#4 2/8] Code cleanup: new path to VEC in utils.c
http://sourceware.org/ml/gdb-patches/2012-04/msg00086.html
http://sourceware.org/ml/gdb-cvs/2012-04/msg00111.html
- reduced for the backport
### src/gdb/ChangeLog 2012/04/17 15:45:05 1.14110
### src/gdb/ChangeLog 2012/04/17 15:47:08 1.14111
## -1,6 +1,34 @@
2012-04-17 Jan Kratochvil <jan.kratochvil@redhat.com>
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.
+
+2012-04-17 Jan Kratochvil <jan.kratochvil@redhat.com>
+
+ Code cleanup.
* source.c (add_path): Remove always true conditional 'p == 0' and
unindent its code block.
Index: gdb-7.4.50.20120120/gdb/gdb_vecs.h
===================================================================
--- gdb-7.4.50.20120120.orig/gdb/gdb_vecs.h 2012-04-18 00:40:12.067086016 +0200
+++ gdb-7.4.50.20120120/gdb/gdb_vecs.h 2012-04-18 00:40:23.474056993 +0200
@@ -25,4 +25,16 @@
DEF_VEC_P (char_ptr);
+/* From utils.c: */
+
+extern void free_char_ptr_vec (VEC (char_ptr) *char_ptr_vec);
+
+extern struct cleanup *
+ make_cleanup_free_char_ptr_vec (VEC (char_ptr) *char_ptr_vec);
+
+extern void dirnames_to_char_ptr_vec_append (VEC (char_ptr) **vecp,
+ const char *dirnames);
+
+extern VEC (char_ptr) *dirnames_to_char_ptr_vec (const char *dirnames);
+
#endif /* GDB_VECS_H */
Index: gdb-7.4.50.20120120/gdb/utils.c
===================================================================
--- gdb-7.4.50.20120120.orig/gdb/utils.c 2012-04-18 00:40:12.068086013 +0200
+++ gdb-7.4.50.20120120/gdb/utils.c 2012-04-18 00:40:49.862989855 +0200
@@ -29,6 +29,7 @@
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#endif /* HAVE_SYS_RESOURCE_H */
+#include "gdb_vecs.h"
#ifdef TUI
#include "tui/tui.h" /* For tui_get_command_dimension. */
@@ -3835,6 +3836,95 @@ producer_is_gcc_ge_4 (const char *produc
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