value);
}
+/* Try to open SCRIPT_FILE.
+ If successful, the full path name is stored in *FULL_PATHP,
+ the stream is stored in *STREAMP, and return 1.
+ The caller is responsible for freeing *FULL_PATHP.
+ If not successful, return 0; errno is set for the last file
+ we tried to open.
+
+ If SEARCH_PATH is non-zero, and the file isn't found in cwd,
+ search for it in the source search path.
+
+ NOTE: This calls openp which uses xfullpath to compute the full path
+ instead of gdb_realpath. Symbolic links are not resolved. */
+
static int
-find_and_open_script (int from_tty, char **filep, FILE **streamp,
- struct cleanup **cleanupp)
+find_and_open_script (const char *script_file, int search_path,
+ FILE **streamp, char **full_pathp)
{
- char *file = *filep;
- char *full_pathname = NULL;
+ char *file;
int fd;
struct cleanup *old_cleanups;
+ int search_flags = OPF_TRY_CWD_FIRST;
- file = tilde_expand (file);
+ file = tilde_expand (script_file);
old_cleanups = make_cleanup (xfree, file);
- /* Search for and open 'file' on the search path used for source
- files. Put the full location in 'full_pathname'. */
- fd = openp (source_path, OPF_TRY_CWD_FIRST,
- file, O_RDONLY, &full_pathname);
- make_cleanup (xfree, full_pathname);
+ if (search_path)
+ search_flags |= OPF_SEARCH_IN_PATH;
- /* Use the full path name, if it is found. */
- if (full_pathname != NULL && fd != -1)
- {
- file = full_pathname;
- }
+ /* Search for and open 'file' on the search path used for source
+ files. Put the full location in *FULL_PATHP. */
+ fd = openp (source_path, search_flags,
+ file, O_RDONLY, full_pathp);
if (fd == -1)
{
- if (from_tty)
- perror_with_name (file);
- else
- {
- do_cleanups (old_cleanups);
- return 0;
- }
+ int save_errno = errno;
+ do_cleanups (old_cleanups);
+ errno = save_errno;
+ return 0;
}
- *streamp = fdopen (fd, FOPEN_RT);
- *filep = file;
- *cleanupp = old_cleanups;
+ do_cleanups (old_cleanups);
+ *streamp = fdopen (fd, FOPEN_RT);
return 1;
}
-void
-source_script (char *file, int from_tty)
-{
- FILE *stream;
- struct cleanup *old_cleanups;
-
- if (file == NULL || *file == 0)
- {
- error (_("source command requires file name of file to source."));
- }
-
- if (!find_and_open_script (from_tty, &file, &stream, &old_cleanups))
- return;
+/* Load script FILE, which has already been opened as STREAM.
+ STREAM is closed before we return. */
+static void
+source_script_from_stream (FILE *stream, const char *file)
+{
if (script_ext_mode != script_ext_off
&& strlen (file) > 3 && !strcmp (&file[strlen (file) - 3], ".py"))
{
if (script_ext_mode == script_ext_soft
&& e.reason == RETURN_ERROR && e.error == UNSUPPORTED_ERROR)
{
- if (!find_and_open_script (from_tty, &file, &stream, &old_cleanups))
- return;
-
- script_from_file (stream, file);
+ fseek (stream, 0, SEEK_SET);
+ script_from_file (stream, (char*) file);
}
else
- /* Nope, just punt. */
- throw_exception (e);
+ {
+ /* Nope, just punt. */
+ fclose (stream);
+ throw_exception (e);
+ }
}
+ else
+ fclose (stream);
}
else
script_from_file (stream, file);
+}
+/* Worker to perform the "source" command.
+ Load script FILE.
+ If SEARCH_PATH is non-zero, and the file isn't found in cwd,
+ search for it in the source search path. */
+
+static void
+source_script_with_search (const char *file, int from_tty, int search_path)
+{
+ FILE *stream;
+ char *full_path;
+ struct cleanup *old_cleanups;
+
+ if (file == NULL || *file == 0)
+ error (_("source command requires file name of file to source."));
+
+ if (!find_and_open_script (file, search_path, &stream, &full_path))
+ {
+ /* The script wasn't found, or was otherwise inaccessible.
+ If the source command was invoked interactively, throw an error.
+ Otherwise (e.g. if it was invoked by a script), silently ignore
+ the error. */
+ if (from_tty)
+ perror_with_name (file);
+ else
+ return;
+ }
+
+ old_cleanups = make_cleanup (xfree, full_path);
+ source_script_from_stream (stream, file);
do_cleanups (old_cleanups);
}
+/* Wrapper around source_script_with_search to export it to main.c
+ for use in loading .gdbinit scripts. */
+
+void
+source_script (char *file, int from_tty)
+{
+ source_script_with_search (file, from_tty, 0);
+}
+
/* Return the source_verbose global variable to its previous state
on exit from the source command, by whatever means. */
static void
struct cleanup *old_cleanups;
char *file = args;
int *old_source_verbose = xmalloc (sizeof(int));
+ int search_path = 0;
*old_source_verbose = source_verbose;
old_cleanups = make_cleanup (source_verbose_cleanup, old_source_verbose);
/* -v causes the source command to run in verbose mode.
+ -s causes the file to be searched in the source search path,
+ even if the file name contains a '/'.
We still have to be able to handle filenames with spaces in a
backward compatible way, so buildargv is not appropriate. */
if (args)
{
- /* Make sure leading white space does not break the comparisons. */
- while (isspace(args[0]))
- args++;
-
- /* Is -v the first thing in the string? */
- if (args[0] == '-' && args[1] == 'v' && isspace (args[2]))
+ while (args[0] != '\0')
{
- source_verbose = 1;
+ /* Make sure leading white space does not break the comparisons. */
+ while (isspace(args[0]))
+ args++;
+
+ if (args[0] != '-')
+ break;
+
+ if (args[1] == 'v' && isspace (args[2]))
+ {
+ source_verbose = 1;
+
+ /* Skip passed -v. */
+ args = &args[3];
+ }
+ else if (args[1] == 's' && isspace (args[2]))
+ {
+ search_path = 1;
- /* Trim -v and whitespace from the filename. */
- file = &args[3];
- while (isspace (file[0]))
- file++;
+ /* Skip passed -s. */
+ args = &args[3];
+ }
+ else
+ break;
}
+
+ while (isspace (args[0]))
+ args++;
+ file = args;
}
- source_script (file, from_tty);
+ source_script_with_search (file, from_tty, search_path);
do_cleanups (old_cleanups);
}
source_help_text = xstrprintf (_("\
Read commands from a file named FILE.\n\
-Optional -v switch (before the filename) causes each command in\n\
-FILE to be echoed as it is executed.\n\
+\n\
+Usage: source [-s] [-v] FILE\n\
+-s: search for the script in the source search path,\n\
+ even if FILE contains directories.\n\
+-v: each command in FILE is echoed as it is executed.\n\
+\n\
Note that the file \"%s\" is read automatically in this way\n\
when GDB is started."), gdbinit);
c = add_cmd ("source", class_support, source_command,
@table @code
@kindex source
@cindex execute commands from a file
-@item source [@code{-v}] @var{filename}
+@item source [-s] [-v] @var{filename}
Execute the command file @var{filename}.
@end table
except that @file{$cdir} is not searched because the compilation directory
is not relevant to scripts.
+If @code{-s} is specified, then @value{GDBN} searches for @var{filename}
+on the search path even if @var{filename} specifies a directory.
+The search is done by appending @var{filename} to each element of the
+search path. So, for example, if @var{filename} is @file{mylib/myscript}
+and the search path contains @file{/home/user} then @value{GDBN} will
+look for the script @file{/home/user/mylib/myscript}.
+The search is also done if @var{filename} is an absolute path.
+For example, if @var{filename} is @file{/tmp/myscript} and
+the search path contains @file{/home/user} then @value{GDBN} will
+look for the script @file{/home/user/tmp/myscript}.
+For DOS-like systems, if @var{filename} contains a drive specification,
+it is stripped before concatenation. For example, if @var{filename} is
+@file{d:myscript} and the search path contains @file{c:/tmp} then @value{GDBN}
+will look for the script @file{c:/tmp/myscript}.
+
If @code{-v}, for verbose mode, is given then @value{GDBN} displays
each command as it is executed. The option must be given before
@var{filename}, and is interpreted as part of the filename anywhere else.
projects / binutils-gdb.git / commitdiff