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.
+ * 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.
if (fail)
{
/* Some error occurred, so drop the vector. */
- int ix;
- char *elt;
- for (ix = 0; VEC_iterate (char_ptr, charsets, ix, elt); ++ix)
- xfree (elt);
- VEC_truncate (char_ptr, charsets, 0);
+ free_char_ptr_vec (charsets);
+ charsets = NULL;
}
else
VEC_safe_push (char_ptr, charsets, NULL);
build_id_to_debug_filename (struct build_id *build_id)
{
char *link, *debugdir, *retval = NULL;
+ VEC (char_ptr) *debugdir_vec;
+ struct cleanup *back_to;
+ int ix;
/* DEBUG_FILE_DIRECTORY/.build-id/ab/cdef */
link = alloca (strlen (debug_file_directory) + (sizeof "/.build-id/" - 1) + 1
/* Keep backward compatibility so that DEBUG_FILE_DIRECTORY being "" will
cause "/.build-id/..." lookups. */
- debugdir = debug_file_directory;
- do
+ debugdir_vec = dirnames_to_char_ptr_vec (debug_file_directory);
+ back_to = make_cleanup_free_char_ptr_vec (debugdir_vec);
+
+ for (ix = 0; VEC_iterate (char_ptr, debugdir_vec, ix, debugdir); ++ix)
{
- char *s, *debugdir_end;
+ size_t debugdir_len = strlen (debugdir);
gdb_byte *data = build_id->data;
size_t size = build_id->size;
+ char *s;
- while (*debugdir == DIRNAME_SEPARATOR)
- debugdir++;
-
- debugdir_end = strchr (debugdir, DIRNAME_SEPARATOR);
- if (debugdir_end == NULL)
- debugdir_end = &debugdir[strlen (debugdir)];
-
- memcpy (link, debugdir, debugdir_end - debugdir);
- s = &link[debugdir_end - debugdir];
+ memcpy (link, debugdir, debugdir_len);
+ s = &link[debugdir_len];
s += sprintf (s, "/.build-id/");
if (size > 0)
{
if (retval != NULL)
break;
-
- debugdir = debugdir_end;
}
- while (*debugdir != 0);
+ do_cleanups (back_to);
return retval;
}
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 */
void
clear_program_space_solib_cache (struct program_space *pspace)
{
- int ix;
- char *name;
-
VEC_free (so_list_ptr, pspace->added_solibs);
- for (ix = 0; VEC_iterate (char_ptr, pspace->deleted_solibs, ix, name); ++ix)
- xfree (name);
- VEC_free (char_ptr, pspace->deleted_solibs);
+
+ free_char_ptr_vec (pspace->deleted_solibs);
+ pspace->deleted_solibs = NULL;
}
\f
{
char *old = *which_path;
int prefix = 0;
- char **argv = NULL;
- char *arg;
- int argv_index = 0;
+ VEC (char_ptr) *dir_vec = NULL;
+ struct cleanup *back_to;
+ int ix;
+ char *name;
if (dirname == 0)
return;
if (parse_separators)
{
+ char **argv, **argvp;
+
/* This will properly parse the space and tab separators
- and any quotes that may exist. DIRNAME_SEPARATOR will
- be dealt with later. */
+ and any quotes that may exist. */
argv = gdb_buildargv (dirname);
- make_cleanup_freeargv (argv);
- arg = argv[0];
+ for (argvp = argv; *argvp; argvp++)
+ dirnames_to_char_ptr_vec_append (&dir_vec, *argvp);
+
+ freeargv (argv);
}
else
- {
- arg = xstrdup (dirname);
- make_cleanup (xfree, arg);
- }
+ VEC_safe_push (char_ptr, dir_vec, xstrdup (dirname));
+ back_to = make_cleanup_free_char_ptr_vec (dir_vec);
- do
+ for (ix = 0; VEC_iterate (char_ptr, dir_vec, ix, name); ++ix)
{
- char *name = arg;
char *p;
struct stat st;
- {
- char *separator = NULL;
-
- /* Spaces and tabs will have been removed by buildargv().
- The directories will there be split into a list but
- each entry may still contain DIRNAME_SEPARATOR. */
- if (parse_separators)
- separator = strchr (name, DIRNAME_SEPARATOR);
-
- if (separator == 0)
- p = arg = name + strlen (name);
- else
- {
- p = separator;
- arg = p + 1;
- while (*arg == DIRNAME_SEPARATOR)
- ++arg;
- }
-
- /* If there are no more directories in this argument then start
- on the next argument next time round the loop (if any). */
- if (*arg == '\0')
- arg = parse_separators ? argv[++argv_index] : NULL;
- }
-
- /* name is the start of the directory.
- p is the separator (or null) following the end. */
+ /* Spaces and tabs will have been removed by buildargv().
+ NAME is the start of the directory.
+ P is the '\0' following the end. */
+ p = name + strlen (name);
while (!(IS_DIR_SEPARATOR (*name) && p <= name + 1) /* "/" */
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
char tinybuf[2];
p = *which_path;
- while (1)
+ /* FIXME: we should use realpath() or its work-alike
+ before comparing. Then all the code above which
+ removes excess slashes and dots could simply go away. */
+ if (!filename_cmp (p, name))
{
- /* FIXME: we should use realpath() or its work-alike
- before comparing. Then all the code above which
- removes excess slashes and dots could simply go away. */
- if (!filename_ncmp (p, name, len)
- && (p[len] == '\0' || p[len] == DIRNAME_SEPARATOR))
- {
- /* Found it in the search path, remove old copy. */
- if (p > *which_path)
- p--; /* Back over leading separator. */
- if (prefix > p - *which_path)
- goto skip_dup; /* Same dir twice in one cmd. */
- memmove (p, &p[len + 1], strlen (&p[len + 1]) + 1); /* Copy from next \0 or : */
- }
- p = strchr (p, DIRNAME_SEPARATOR);
- if (p != 0)
- ++p;
- else
- break;
+ /* Found it in the search path, remove old copy. */
+ if (p > *which_path)
+ p--; /* Back over leading separator. */
+ if (prefix > p - *which_path)
+ goto skip_dup; /* Same dir twice in one cmd. */
+ memmove (p, &p[len + 1], strlen (&p[len + 1]) + 1); /* Copy from next \0 or : */
}
tinybuf[0] = DIRNAME_SEPARATOR;
skip_dup:
;
}
- while (arg != NULL);
+
+ do_cleanups (back_to);
}
{
int fd;
char *filename;
- const char *p;
- const char *p1;
- int len;
int alloclen;
+ VEC (char_ptr) *dir_vec;
+ struct cleanup *back_to;
+ int ix;
+ char *dir;
/* The open syscall MODE parameter is not specified. */
gdb_assert ((mode & O_CREAT) == 0);
alloclen = strlen (path) + strlen (string) + 2;
filename = alloca (alloclen);
fd = -1;
- for (p = path; p; p = p1 ? p1 + 1 : 0)
+
+ dir_vec = dirnames_to_char_ptr_vec (path);
+ back_to = make_cleanup_free_char_ptr_vec (dir_vec);
+
+ for (ix = 0; VEC_iterate (char_ptr, dir_vec, ix, dir); ++ix)
{
- p1 = strchr (p, DIRNAME_SEPARATOR);
- if (p1)
- len = p1 - p;
- else
- len = strlen (p);
+ size_t len = strlen (dir);
- if (len == 4 && p[0] == '$' && p[1] == 'c'
- && p[2] == 'w' && p[3] == 'd')
+ if (strcmp (dir, "$cwd") == 0)
{
/* Name is $cwd -- insert current directory name instead. */
int newlen;
else
{
/* Normal file name in path -- just use it. */
- strncpy (filename, p, len);
- filename[len] = 0;
+ strcpy (filename, dir);
/* Don't search $cdir. It's also a magic path like $cwd, but we
don't have enough information to expand it. The user *could*
contexts. If the user really has '$cdir' one can use './$cdir'.
We can get $cdir when loading scripts. When loading source files
$cdir must have already been expanded to the correct value. */
- if (strcmp (filename, "$cdir") == 0)
+ if (strcmp (dir, "$cdir") == 0)
continue;
}
}
}
+ do_cleanups (back_to);
+
done:
if (filename_opened)
{
char *debugdir;
char *debugfile;
int i;
+ VEC (char_ptr) *debugdir_vec;
+ struct cleanup *back_to;
+ int ix;
/* Set I to max (strlen (canon_dir), strlen (dir)). */
i = strlen (dir);
Keep backward compatibility so that DEBUG_FILE_DIRECTORY being "" will
cause "/..." lookups. */
- debugdir = debug_file_directory;
- do
- {
- char *debugdir_end;
-
- while (*debugdir == DIRNAME_SEPARATOR)
- debugdir++;
-
- debugdir_end = strchr (debugdir, DIRNAME_SEPARATOR);
- if (debugdir_end == NULL)
- debugdir_end = &debugdir[strlen (debugdir)];
+ debugdir_vec = dirnames_to_char_ptr_vec (debug_file_directory);
+ back_to = make_cleanup_free_char_ptr_vec (debugdir_vec);
- memcpy (debugfile, debugdir, debugdir_end - debugdir);
- debugfile[debugdir_end - debugdir] = 0;
+ for (ix = 0; VEC_iterate (char_ptr, debugdir_vec, ix, debugdir); ++ix)
+ {
+ strcpy (debugfile, debugdir);
strcat (debugfile, "/");
strcat (debugfile, dir);
strcat (debugfile, debuglink);
strlen (gdb_sysroot)) == 0
&& IS_DIR_SEPARATOR (canon_dir[strlen (gdb_sysroot)]))
{
- memcpy (debugfile, debugdir, debugdir_end - debugdir);
- debugfile[debugdir_end - debugdir] = 0;
+ strcpy (debugfile, debugdir);
strcat (debugfile, canon_dir + strlen (gdb_sysroot));
strcat (debugfile, "/");
strcat (debugfile, debuglink);
if (separate_debug_file_exists (debugfile, crc32, objfile))
return debugfile;
}
-
- debugdir = debugdir_end;
}
- while (*debugdir != 0);
+ do_cleanups (back_to);
xfree (debugfile);
return NULL;
}
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
projects / binutils-gdb.git / commitdiff