Make delim_string_to_char_ptr_vec return an std::vector

This patch makes delim_string_to_char_ptr_vec and all related functions
use std::vector of gdb::unique_xmalloc_ptr.  This allows getting rid of
make_cleanup_free_char_ptr_vec.  Returning a vector of
unique_xmalloc_ptr instead of std::string allows to minimize the impacts
on the calling code.  We can evaluate later whether we could/should
return a vector of std::strings instead.

gdb/ChangeLog:

	* common/gdb_vecs.h (make_cleanup_free_char_ptr_vec): Remove.
	(delim_string_to_char_ptr_vec): Return std::vector of
	gdb::unique_xmalloc_ptr.
	(dirnames_to_char_ptr_vec_append): Take std::vector of
	gdb::unique_xmalloc_ptr.
	(dirnames_to_char_ptr_vec): Return std::vector of
	gdb::unique_xmalloc_ptr.
	* common/gdb_vecs.c (delim_string_to_char_ptr_vec_append):
	Take std::vector of gdb::unique_xmalloc_ptr, adjust the code.
	(delim_string_to_char_ptr_vec): Return an std::vector of
	gdb::unique_xmalloc_ptr, adjust the code.
	(dirnames_to_char_ptr_vec_append): Take an std::vector of
	gdb::unique_xmalloc_ptr, adjust the code.
	(dirnames_to_char_ptr_vec): Return an std::vector of
	gdb::unique_xmalloc_ptr, adjust the code.
	* auto-load.c (auto_load_safe_path_vec): Change type to
	std::vector of gdb::unique_xmalloc_ptr.
	(auto_load_expand_dir_vars): Return an std::vector of
	gdb::unique_xmalloc_ptr, adjust the code.
	(auto_load_safe_path_vec_update): Adjust.
	(filename_is_in_auto_load_safe_path_vec): Adjust.
	(auto_load_objfile_script_1): Adjust.
	* build-id.c (build_id_to_debug_bfd): Adjust.
	* linux-thread-db.c (thread_db_load_search): Adjust.
	* source.c (add_path): Adjust.
	(openp): Adjust.
	* symfile.c (find_separate_debug_file): Adjust.
	* utils.c (do_free_char_ptr_vec): Remove.
	(make_cleanup_free_char_ptr_vec): Remove.

gdb/gdbserver/ChangeLog:

	* server.c (parse_debug_format_options): Adjust to
	delim_string_to_char_ptr_vec changes.
	* thread-db.c (thread_db_load_search): Adjust to
	dirnames_to_char_ptr_vec changes.

1 files changed, 0 insertions, 24 deletions

diff --git a/gdb/utils.c b/gdb/utils.c
index 577f9df..b99d444 100644
--- a/gdb/utils.c
+++ b/gdb/utils.c
@@ -3052,30 +3052,6 @@ make_bpstat_clear_actions_cleanup (void)
   return make_cleanup (do_bpstat_clear_actions_cleanup, NULL);
 }
 
-
-/* Helper for make_cleanup_free_char_ptr_vec.  */
-
-static void
-do_free_char_ptr_vec (void *arg)
-{
-  VEC (char_ptr) *char_ptr_vec = (VEC (char_ptr) *) 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);
-}
-
 /* Substitute all occurences of string FROM by string TO in *STRINGP.  *STRINGP
    must come from xrealloc-compatible allocator and it may be updated.  FROM
    needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be