/* GDB routines for supporting auto-loaded scripts.
- Copyright (C) 2012-2014 Free Software Foundation, Inc.
+ Copyright (C) 2012-2017 Free Software Foundation, Inc.
This file is part of GDB.
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
+#include <ctype.h>
#include "auto-load.h"
#include "progspace.h"
#include "gdb_regex.h"
#include "command.h"
#include "observer.h"
#include "objfiles.h"
-#include "exceptions.h"
#include "cli/cli-script.h"
#include "gdbcmd.h"
#include "cli/cli-cmds.h"
#include "cli/cli-decode.h"
#include "cli/cli-setshow.h"
-#include "gdb_vecs.h"
#include "readline/tilde.h"
#include "completer.h"
#include "fnmatch.h"
#include "filestuff.h"
#include "extension.h"
#include "gdb/section-scripts.h"
+#include <algorithm>
/* The section to look in for auto-loaded scripts (in file formats that
support sections).
followed by the path of a python script to load. */
#define AUTO_SECTION_NAME ".debug_gdb_scripts"
-static int maybe_add_script (struct auto_load_pspace_info *pspace_info,
- int loaded, const char *name,
- const char *full_path,
- const struct extension_language_defn *language);
+static void maybe_print_unsupported_script_warning
+ (struct auto_load_pspace_info *, struct objfile *objfile,
+ const struct extension_language_defn *language,
+ const char *section_name, unsigned offset);
-static int unsupported_script_warning_print (struct auto_load_pspace_info *);
-
-static int script_not_found_warning_print (struct auto_load_pspace_info *);
+static void maybe_print_script_not_found_warning
+ (struct auto_load_pspace_info *, struct objfile *objfile,
+ const struct extension_language_defn *language,
+ const char *section_name, unsigned offset);
/* Value of the 'set debug auto-load' configuration variable. */
static int debug_auto_load = 0;
{
char *dir = VEC_index (char_ptr, auto_load_safe_path_vec, ix);
char *expanded = tilde_expand (dir);
- char *real_path = gdb_realpath (expanded);
+ gdb::unique_xmalloc_ptr<char> real_path = gdb_realpath (expanded);
/* Ensure the current entry is at least tilde_expand-ed. */
VEC_replace (char_ptr, auto_load_safe_path_vec, ix, expanded);
xfree (dir);
/* If gdb_realpath returns a different content, append it. */
- if (strcmp (real_path, expanded) == 0)
- xfree (real_path);
- else
+ if (strcmp (real_path.get (), expanded) != 0)
{
- VEC_safe_push (char_ptr, auto_load_safe_path_vec, real_path);
-
if (debug_auto_load)
fprintf_unfiltered (gdb_stdlog,
_("auto-load: And canonicalized as \"%s\".\n"),
- real_path);
+ real_path.get ());
+
+ VEC_safe_push (char_ptr, auto_load_safe_path_vec,
+ real_path.release ());
}
}
}
auto_load_safe_path_vec_update ();
}
+/* "add-auto-load-scripts-directory" command for the auto_load_dir configuration
+ variable. */
+
+static void
+add_auto_load_dir (char *args, int from_tty)
+{
+ char *s;
+
+ if (args == NULL || *args == 0)
+ error (_("Directory argument required."));
+
+ s = xstrprintf ("%s%c%s", auto_load_dir, DIRNAME_SEPARATOR, args);
+ xfree (auto_load_dir);
+ auto_load_dir = s;
+}
+
/* Implementation for filename_is_in_pattern overwriting the caller's FILENAME
and PATTERN. */
{
char *filename_copy, *pattern_copy;
- filename_copy = alloca (strlen (filename) + 1);
+ filename_copy = (char *) alloca (strlen (filename) + 1);
strcpy (filename_copy, filename);
- pattern_copy = alloca (strlen (pattern) + 1);
+ pattern_copy = (char *) alloca (strlen (pattern) + 1);
strcpy (pattern_copy, pattern);
return filename_is_in_pattern_1 (filename_copy, pattern_copy);
/* Return 1 if FILENAME belongs to one of directory components of
AUTO_LOAD_SAFE_PATH_VEC. Return 0 otherwise.
auto_load_safe_path_vec_update is never called.
- *FILENAME_REALP may be updated by gdb_realpath of FILENAME - it has to be
- freed by the caller. */
+ *FILENAME_REALP may be updated by gdb_realpath of FILENAME. */
static int
filename_is_in_auto_load_safe_path_vec (const char *filename,
- char **filename_realp)
+ gdb::unique_xmalloc_ptr<char> *filename_realp)
{
char *pattern;
int ix;
if (*filename_realp == NULL)
{
*filename_realp = gdb_realpath (filename);
- if (debug_auto_load && strcmp (*filename_realp, filename) != 0)
+ if (debug_auto_load && strcmp (filename_realp->get (), filename) != 0)
fprintf_unfiltered (gdb_stdlog,
_("auto-load: Resolved "
"file \"%s\" as \"%s\".\n"),
- filename, *filename_realp);
+ filename, filename_realp->get ());
}
- if (strcmp (*filename_realp, filename) != 0)
+ if (strcmp (filename_realp->get (), filename) != 0)
for (ix = 0;
VEC_iterate (char_ptr, auto_load_safe_path_vec, ix, pattern); ++ix)
- if (filename_is_in_pattern (*filename_realp, pattern))
+ if (filename_is_in_pattern (filename_realp->get (), pattern))
break;
}
int
file_is_auto_load_safe (const char *filename, const char *debug_fmt, ...)
{
- char *filename_real = NULL;
- struct cleanup *back_to;
+ gdb::unique_xmalloc_ptr<char> filename_real;
static int advice_printed = 0;
if (debug_auto_load)
va_end (debug_args);
}
- back_to = make_cleanup (free_current_contents, &filename_real);
-
if (filename_is_in_auto_load_safe_path_vec (filename, &filename_real))
- {
- do_cleanups (back_to);
- return 1;
- }
+ return 1;
auto_load_safe_path_vec_update ();
if (filename_is_in_auto_load_safe_path_vec (filename, &filename_real))
- {
- do_cleanups (back_to);
- return 1;
- }
+ return 1;
warning (_("File \"%s\" auto-loading has been declined by your "
"`auto-load safe-path' set to \"%s\"."),
- filename_real, auto_load_safe_path);
+ filename_real.get (), auto_load_safe_path);
if (!advice_printed)
{
const char *homedir = getenv ("HOME");
- char *homeinit;
if (homedir == NULL)
homedir = "$HOME";
- homeinit = xstrprintf ("%s/%s", homedir, gdbinit);
- make_cleanup (xfree, homeinit);
+ std::string homeinit = string_printf ("%s/%s", homedir, gdbinit);
printf_filtered (_("\
To enable execution of this file add\n\
For more information about this security protection see the\n\
\"Auto-loading safe path\" section in the GDB manual. E.g., run from the shell:\n\
\tinfo \"(gdb)Auto-loading safe path\"\n"),
- filename_real, homeinit, homeinit);
+ filename_real.get (),
+ homeinit.c_str (), homeinit.c_str ());
advice_printed = 1;
}
- do_cleanups (back_to);
return 0;
}
struct auto_load_pspace_info
{
- /* For each program space we keep track of loaded scripts. */
- struct htab *loaded_scripts;
+ /* For each program space we keep track of loaded scripts, both when
+ specified as file names and as scripts to be executed directly. */
+ struct htab *loaded_script_files;
+ struct htab *loaded_script_texts;
/* Non-zero if we've issued the warning about an auto-load script not being
supported. We only want to issue this warning once. */
int script_not_found_warning_printed;
};
-/* Objects of this type are stored in the loaded script hash table. */
+/* Objects of this type are stored in the loaded_script hash table. */
struct loaded_script
{
const char *name;
/* Full path name or NULL if script wasn't found (or was otherwise
- inaccessible). */
+ inaccessible), or NULL for loaded_script_texts. */
const char *full_path;
/* Non-zero if this script has been loaded. */
static void
auto_load_pspace_data_cleanup (struct program_space *pspace, void *arg)
{
- struct auto_load_pspace_info *info = arg;
+ struct auto_load_pspace_info *info = (struct auto_load_pspace_info *) arg;
- if (info->loaded_scripts)
- htab_delete (info->loaded_scripts);
+ if (info->loaded_script_files)
+ htab_delete (info->loaded_script_files);
+ if (info->loaded_script_texts)
+ htab_delete (info->loaded_script_texts);
xfree (info);
}
{
struct auto_load_pspace_info *info;
- info = program_space_data (pspace, auto_load_pspace_data);
+ info = ((struct auto_load_pspace_info *)
+ program_space_data (pspace, auto_load_pspace_data));
if (info == NULL)
{
info = XCNEW (struct auto_load_pspace_info);
static hashval_t
hash_loaded_script_entry (const void *data)
{
- const struct loaded_script *e = data;
+ const struct loaded_script *e = (const struct loaded_script *) data;
return htab_hash_string (e->name) ^ htab_hash_pointer (e->language);
}
static int
eq_loaded_script_entry (const void *a, const void *b)
{
- const struct loaded_script *ea = a;
- const struct loaded_script *eb = b;
+ const struct loaded_script *ea = (const struct loaded_script *) a;
+ const struct loaded_script *eb = (const struct loaded_script *) b;
return strcmp (ea->name, eb->name) == 0 && ea->language == eb->language;
}
Space for each entry is obtained with one malloc so we can free them
easily. */
- pspace_info->loaded_scripts = htab_create (31,
- hash_loaded_script_entry,
- eq_loaded_script_entry,
- xfree);
+ pspace_info->loaded_script_files = htab_create (31,
+ hash_loaded_script_entry,
+ eq_loaded_script_entry,
+ xfree);
+ pspace_info->loaded_script_texts = htab_create (31,
+ hash_loaded_script_entry,
+ eq_loaded_script_entry,
+ xfree);
pspace_info->unsupported_script_warning_printed = FALSE;
pspace_info->script_not_found_warning_printed = FALSE;
struct auto_load_pspace_info *info;
info = get_auto_load_pspace_data (pspace);
- if (info->loaded_scripts == NULL)
+ if (info->loaded_script_files == NULL)
init_loaded_scripts_info (info);
return info;
}
-/* Add script NAME in LANGUAGE to hash table of PSPACE_INFO. LOADED 1 if the
- script has been (is going to) be loaded, 0 otherwise (such as if it has not
- been found). FULL_PATH is NULL if the script wasn't found. The result is
- true if the script was already in the hash table. */
+/* Add script file NAME in LANGUAGE to hash table of PSPACE_INFO.
+ LOADED 1 if the script has been (is going to) be loaded, 0 otherwise
+ (such as if it has not been found).
+ FULL_PATH is NULL if the script wasn't found.
+ The result is true if the script was already in the hash table. */
static int
-maybe_add_script (struct auto_load_pspace_info *pspace_info, int loaded,
- const char *name, const char *full_path,
- const struct extension_language_defn *language)
+maybe_add_script_file (struct auto_load_pspace_info *pspace_info, int loaded,
+ const char *name, const char *full_path,
+ const struct extension_language_defn *language)
{
- struct htab *htab = pspace_info->loaded_scripts;
+ struct htab *htab = pspace_info->loaded_script_files;
struct loaded_script **slot, entry;
int in_hash_table;
/* If this script is not in the hash table, add it. */
- if (! in_hash_table)
+ if (!in_hash_table)
{
char *p;
/* Allocate all space in one chunk so it's easier to free. */
- *slot = xmalloc (sizeof (**slot)
- + strlen (name) + 1
- + (full_path != NULL ? (strlen (full_path) + 1) : 0));
+ *slot = ((struct loaded_script *)
+ xmalloc (sizeof (**slot)
+ + strlen (name) + 1
+ + (full_path != NULL ? (strlen (full_path) + 1) : 0)));
p = ((char*) *slot) + sizeof (**slot);
strcpy (p, name);
(*slot)->name = p;
return in_hash_table;
}
+/* Add script contents NAME in LANGUAGE to hash table of PSPACE_INFO.
+ LOADED 1 if the script has been (is going to) be loaded, 0 otherwise
+ (such as if it has not been found).
+ The result is true if the script was already in the hash table. */
+
+static int
+maybe_add_script_text (struct auto_load_pspace_info *pspace_info,
+ int loaded, const char *name,
+ const struct extension_language_defn *language)
+{
+ struct htab *htab = pspace_info->loaded_script_texts;
+ struct loaded_script **slot, entry;
+ int in_hash_table;
+
+ entry.name = name;
+ entry.language = language;
+ slot = (struct loaded_script **) htab_find_slot (htab, &entry, INSERT);
+ in_hash_table = *slot != NULL;
+
+ /* If this script is not in the hash table, add it. */
+
+ if (!in_hash_table)
+ {
+ char *p;
+
+ /* Allocate all space in one chunk so it's easier to free. */
+ *slot = ((struct loaded_script *)
+ xmalloc (sizeof (**slot) + strlen (name) + 1));
+ p = ((char*) *slot) + sizeof (**slot);
+ strcpy (p, name);
+ (*slot)->name = p;
+ (*slot)->full_path = NULL;
+ (*slot)->loaded = loaded;
+ (*slot)->language = language;
+ }
+
+ return in_hash_table;
+}
+
/* Clear the table of loaded section scripts. */
static void
struct program_space *pspace = current_program_space;
struct auto_load_pspace_info *info;
- info = program_space_data (pspace, auto_load_pspace_data);
- if (info != NULL && info->loaded_scripts != NULL)
+ info = ((struct auto_load_pspace_info *)
+ program_space_data (pspace, auto_load_pspace_data));
+ if (info != NULL && info->loaded_script_files != NULL)
{
- htab_delete (info->loaded_scripts);
- info->loaded_scripts = NULL;
+ htab_delete (info->loaded_script_files);
+ htab_delete (info->loaded_script_texts);
+ info->loaded_script_files = NULL;
+ info->loaded_script_texts = NULL;
info->unsupported_script_warning_printed = FALSE;
info->script_not_found_warning_printed = FALSE;
}
{
char *filename, *debugfile;
int len, retval;
- FILE *input;
struct cleanup *cleanups;
const char *suffix = ext_lang_auto_load_suffix (language);
len = strlen (realname);
- filename = xmalloc (len + strlen (suffix) + 1);
+ filename = (char *) xmalloc (len + strlen (suffix) + 1);
memcpy (filename, realname, len);
strcpy (filename + len, suffix);
cleanups = make_cleanup (xfree, filename);
- input = gdb_fopen_cloexec (filename, "r");
+ gdb_file_up input = gdb_fopen_cloexec (filename, "r");
debugfile = filename;
if (debug_auto_load)
fprintf_unfiltered (gdb_stdlog, _("auto-load: Attempted file \"%s\" %s.\n"),
for (ix = 0; VEC_iterate (char_ptr, vec, ix, dir); ++ix)
{
- debugfile = xmalloc (strlen (dir) + strlen (filename) + 1);
+ debugfile = (char *) xmalloc (strlen (dir) + strlen (filename) + 1);
strcpy (debugfile, dir);
/* FILENAME is absolute, so we don't need a "/" here. */
int is_safe;
struct auto_load_pspace_info *pspace_info;
- make_cleanup_fclose (input);
-
is_safe
- = file_is_auto_load_safe (filename,
+ = file_is_auto_load_safe (debugfile,
_("auto-load: Loading %s script \"%s\""
" by extension for objfile \"%s\".\n"),
ext_lang_name (language),
- filename, objfile_name (objfile));
+ debugfile, objfile_name (objfile));
/* Add this script to the hash table too so
"info auto-load ${lang}-scripts" can print it. */
pspace_info
= get_auto_load_pspace_data_for_loading (current_program_space);
- maybe_add_script (pspace_info, is_safe, filename, filename, language);
+ maybe_add_script_file (pspace_info, is_safe, debugfile, debugfile,
+ language);
/* To preserve existing behaviour we don't check for whether the
script was already in the table, and always load it.
compiled in. And the extension language is required to implement
this function. */
gdb_assert (sourcer != NULL);
- sourcer (language, objfile, input, debugfile);
+ sourcer (language, objfile, input.get (), debugfile);
}
retval = 1;
auto_load_objfile_script (struct objfile *objfile,
const struct extension_language_defn *language)
{
- char *realname = gdb_realpath (objfile_name (objfile));
- struct cleanup *cleanups = make_cleanup (xfree, realname);
+ gdb::unique_xmalloc_ptr<char> realname
+ = gdb_realpath (objfile_name (objfile));
- if (!auto_load_objfile_script_1 (objfile, realname, language))
+ if (!auto_load_objfile_script_1 (objfile, realname.get (), language))
{
/* For Windows/DOS .exe executables, strip the .exe suffix, so that
FOO-gdb.gdb could be used for FOO.exe, and try again. */
- size_t len = strlen (realname);
+ size_t len = strlen (realname.get ());
const size_t lexe = sizeof (".exe") - 1;
- if (len > lexe && strcasecmp (realname + len - lexe, ".exe") == 0)
+ if (len > lexe && strcasecmp (realname.get () + len - lexe, ".exe") == 0)
{
len -= lexe;
- realname[len] = '\0';
+ realname.get ()[len] = '\0';
if (debug_auto_load)
fprintf_unfiltered (gdb_stdlog, _("auto-load: Stripped .exe suffix, "
"retrying with \"%s\".\n"),
- realname);
- auto_load_objfile_script_1 (objfile, realname, language);
+ realname.get ());
+ auto_load_objfile_script_1 (objfile, realname.get (), language);
+ }
+ }
+}
+
+/* Subroutine of source_section_scripts to simplify it.
+ Load FILE as a script in extension language LANGUAGE.
+ The script is from section SECTION_NAME in OBJFILE at offset OFFSET. */
+
+static void
+source_script_file (struct auto_load_pspace_info *pspace_info,
+ struct objfile *objfile,
+ const struct extension_language_defn *language,
+ const char *section_name, unsigned int offset,
+ const char *file)
+{
+ int in_hash_table;
+ objfile_script_sourcer_func *sourcer;
+
+ /* Skip this script if support is not compiled in. */
+ sourcer = ext_lang_objfile_script_sourcer (language);
+ if (sourcer == NULL)
+ {
+ /* We don't throw an error, the program is still debuggable. */
+ maybe_print_unsupported_script_warning (pspace_info, objfile, language,
+ section_name, offset);
+ /* We *could* still try to open it, but there's no point. */
+ maybe_add_script_file (pspace_info, 0, file, NULL, language);
+ return;
+ }
+
+ /* Skip this script if auto-loading it has been disabled. */
+ if (!ext_lang_auto_load_enabled (language))
+ {
+ /* No message is printed, just skip it. */
+ return;
+ }
+
+ gdb::optional<open_script> opened = find_and_open_script (file,
+ 1 /*search_path*/);
+
+ if (opened)
+ {
+ if (!file_is_auto_load_safe (opened->full_path.get (),
+ _("auto-load: Loading %s script "
+ "\"%s\" from section \"%s\" of "
+ "objfile \"%s\".\n"),
+ ext_lang_name (language),
+ opened->full_path.get (),
+ section_name, objfile_name (objfile)))
+ opened.reset ();
+ }
+ else
+ {
+ /* If one script isn't found it's not uncommon for more to not be
+ found either. We don't want to print a message for each script,
+ too much noise. Instead, we print the warning once and tell the
+ user how to find the list of scripts that weren't loaded.
+ We don't throw an error, the program is still debuggable.
+
+ IWBN if complaints.c were more general-purpose. */
+
+ maybe_print_script_not_found_warning (pspace_info, objfile, language,
+ section_name, offset);
+ }
+
+ in_hash_table = maybe_add_script_file (pspace_info, bool (opened), file,
+ (opened
+ ? opened->full_path.get ()
+ : NULL),
+ language);
+
+ /* If this file is not currently loaded, load it. */
+ if (opened && !in_hash_table)
+ sourcer (language, objfile, opened->stream.get (),
+ opened->full_path.get ());
+}
+
+/* Subroutine of source_section_scripts to simplify it.
+ Execute SCRIPT as a script in extension language LANG.
+ The script is from section SECTION_NAME in OBJFILE at offset OFFSET. */
+
+static void
+execute_script_contents (struct auto_load_pspace_info *pspace_info,
+ struct objfile *objfile,
+ const struct extension_language_defn *language,
+ const char *section_name, unsigned int offset,
+ const char *script)
+{
+ objfile_script_executor_func *executor;
+ const char *newline, *script_text;
+ char *name;
+ int is_safe, in_hash_table;
+ struct cleanup *cleanups;
+
+ cleanups = make_cleanup (null_cleanup, NULL);
+
+ /* The first line of the script is the name of the script.
+ It must not contain any kind of space character. */
+ name = NULL;
+ newline = strchr (script, '\n');
+ if (newline != NULL)
+ {
+ char *buf, *p;
+
+ /* Put the name in a buffer and validate it. */
+ buf = xstrndup (script, newline - script);
+ make_cleanup (xfree, buf);
+ for (p = buf; *p != '\0'; ++p)
+ {
+ if (isspace (*p))
+ break;
}
+ /* We don't allow nameless scripts, they're not helpful to the user. */
+ if (p != buf && *p == '\0')
+ name = buf;
+ }
+ if (name == NULL)
+ {
+ /* We don't throw an error, the program is still debuggable. */
+ warning (_("\
+Missing/bad script name in entry at offset %u in section %s\n\
+of file %s."),
+ offset, section_name, objfile_name (objfile));
+ do_cleanups (cleanups);
+ return;
+ }
+ script_text = newline + 1;
+
+ /* Skip this script if support is not compiled in. */
+ executor = ext_lang_objfile_script_executor (language);
+ if (executor == NULL)
+ {
+ /* We don't throw an error, the program is still debuggable. */
+ maybe_print_unsupported_script_warning (pspace_info, objfile, language,
+ section_name, offset);
+ maybe_add_script_text (pspace_info, 0, name, language);
+ do_cleanups (cleanups);
+ return;
}
+ /* Skip this script if auto-loading it has been disabled. */
+ if (!ext_lang_auto_load_enabled (language))
+ {
+ /* No message is printed, just skip it. */
+ do_cleanups (cleanups);
+ return;
+ }
+
+ is_safe = file_is_auto_load_safe (objfile_name (objfile),
+ _("auto-load: Loading %s script "
+ "\"%s\" from section \"%s\" of "
+ "objfile \"%s\".\n"),
+ ext_lang_name (language), name,
+ section_name, objfile_name (objfile));
+
+ in_hash_table = maybe_add_script_text (pspace_info, is_safe, name, language);
+
+ /* If this file is not currently loaded, load it. */
+ if (is_safe && !in_hash_table)
+ executor (language, objfile, name, script_text);
+
do_cleanups (cleanups);
}
file names.
SECTION_NAME is used in error messages.
- Scripts are found per normal "source -s" command processing.
- First the script is looked for in $cwd. If not found there the
- source search path is used.
+ Scripts specified as file names are found per normal "source -s" command
+ processing. First the script is looked for in $cwd. If not found there
+ the source search path is used.
- The section contains a list of path names of script files to load.
- Each path is null-terminated. */
+ The section contains a list of path names of script files to load or
+ actual script contents. Each entry is nul-terminated. */
static void
source_section_scripts (struct objfile *objfile, const char *section_name,
for (p = start; p < end; ++p)
{
- const char *file;
- FILE *stream;
- char *full_path;
- int opened, in_hash_table;
- struct cleanup *back_to;
+ const char *entry;
const struct extension_language_defn *language;
- objfile_script_sourcer_func *sourcer;
+ unsigned int offset = p - start;
+ int code = *p;
- switch (*p)
+ switch (code)
{
case SECTION_SCRIPT_ID_PYTHON_FILE:
+ case SECTION_SCRIPT_ID_PYTHON_TEXT:
language = get_ext_lang_defn (EXT_LANG_PYTHON);
break;
case SECTION_SCRIPT_ID_SCHEME_FILE:
+ case SECTION_SCRIPT_ID_SCHEME_TEXT:
language = get_ext_lang_defn (EXT_LANG_GUILE);
break;
default:
but it's safer to just punt. */
return;
}
- file = ++p;
+ entry = ++p;
while (p < end && *p != '\0')
++p;
if (p == end)
{
- char *buf = alloca (p - file + 1);
-
- memcpy (buf, file, p - file);
- buf[p - file] = '\0';
- warning (_("Non-null-terminated path in %s: %s"),
- section_name, buf);
- /* Don't load it. */
+ warning (_("Non-nul-terminated entry in %s at offset %u"),
+ section_name, offset);
+ /* Don't load/execute it. */
break;
}
- if (p == file)
- {
- warning (_("Empty path in %s"), section_name);
- continue;
- }
- /* Until we support more types of records in .debug_gdb_scripts we do
- all the processing here. The expectation is to add a new
- extension_language_script_ops "method" that handles all the records
- for the language. For now we can just use
- extension_language_script_ops.objfile_script_sourcer. */
-
- /* Skip this script if support is not compiled in. */
- sourcer = ext_lang_objfile_script_sourcer (language);
- if (sourcer == NULL)
+ switch (code)
{
- /* We don't throw an error, the program is still debuggable. */
- if (!unsupported_script_warning_print (pspace_info))
+ case SECTION_SCRIPT_ID_PYTHON_FILE:
+ case SECTION_SCRIPT_ID_SCHEME_FILE:
+ if (p == entry)
{
- warning (_("Unsupported auto-load scripts referenced in"
- " %s section\n"
- "of file %s.\n"
- "Use `info auto-load %s-scripts [REGEXP]'"
- " to list them."),
- section_name, objfile_name (objfile),
- ext_lang_name (language));
+ warning (_("Empty entry in %s at offset %u"),
+ section_name, offset);
+ continue;
}
- /* We *could* still try to open it, but there's no point. */
- maybe_add_script (pspace_info, 0, file, NULL, language);
- continue;
- }
-
- /* Skip this script if auto-loading it has been disabled. */
- if (!ext_lang_auto_load_enabled (language))
- {
- /* No message is printed, just skip it. */
- continue;
- }
-
- opened = find_and_open_script (file, 1 /*search_path*/,
- &stream, &full_path);
-
- back_to = make_cleanup (null_cleanup, NULL);
- if (opened)
- {
- make_cleanup_fclose (stream);
- make_cleanup (xfree, full_path);
-
- if (!file_is_auto_load_safe (full_path,
- _("auto-load: Loading %s script "
- "\"%s\" from section \"%s\" of "
- "objfile \"%s\".\n"),
- ext_lang_name (language), full_path,
- section_name, objfile_name (objfile)))
- opened = 0;
- }
- else
- {
- full_path = NULL;
-
- /* If one script isn't found it's not uncommon for more to not be
- found either. We don't want to print a message for each script,
- too much noise. Instead, we print the warning once and tell the
- user how to find the list of scripts that weren't loaded.
- We don't throw an error, the program is still debuggable.
-
- IWBN if complaints.c were more general-purpose. */
-
- if (script_not_found_warning_print (pspace_info))
- warning (_("Missing auto-load scripts referenced in section %s\n\
-of file %s\n\
-Use `info auto-load %s-scripts [REGEXP]' to list them."),
- section_name, objfile_name (objfile),
- ext_lang_name (language));
+ source_script_file (pspace_info, objfile, language,
+ section_name, offset, entry);
+ break;
+ case SECTION_SCRIPT_ID_PYTHON_TEXT:
+ case SECTION_SCRIPT_ID_SCHEME_TEXT:
+ execute_script_contents (pspace_info, objfile, language,
+ section_name, offset, entry);
+ break;
}
-
- in_hash_table = maybe_add_script (pspace_info, opened, file, full_path,
- language);
-
- /* If this file is not currently loaded, load it. */
- if (opened && !in_hash_table)
- sourcer (language, objfile, stream, full_path);
-
- do_cleanups (back_to);
}
}
bfd_byte *data = NULL;
scripts_sect = bfd_get_section_by_name (abfd, section_name);
- if (scripts_sect == NULL)
+ if (scripts_sect == NULL
+ || (bfd_get_section_flags (abfd, scripts_sect) & SEC_HAS_CONTENTS) == 0)
return;
if (!bfd_get_full_section_contents (abfd, scripts_sect, &data))
{
/* Return immediately if auto-loading has been globally disabled.
This is to handle sequencing of operations during gdb startup.
- Also return immediately if OBJFILE is not actually a file. */
- if (!global_auto_load || (objfile->flags & OBJF_NOT_FILENAME) != 0)
+ Also return immediately if OBJFILE was not created from a file
+ on the local filesystem. */
+ if (!global_auto_load
+ || (objfile->flags & OBJF_NOT_FILENAME) != 0
+ || is_target_filename (objfile->original_name))
return;
/* Load any extension language scripts for this objfile.
/* Collect scripts to be printed in a vec. */
-typedef struct loaded_script *loaded_script_ptr;
-DEF_VEC_P (loaded_script_ptr);
-
struct collect_matching_scripts_data
{
- VEC (loaded_script_ptr) **scripts_p;
+ collect_matching_scripts_data (std::vector<loaded_script *> *scripts_p_,
+ const extension_language_defn *language_)
+ : scripts_p (scripts_p_), language (language_)
+ {}
+ std::vector<loaded_script *> *scripts_p;
const struct extension_language_defn *language;
};
static int
collect_matching_scripts (void **slot, void *info)
{
- struct loaded_script *script = *slot;
- struct collect_matching_scripts_data *data = info;
+ struct loaded_script *script = (struct loaded_script *) *slot;
+ struct collect_matching_scripts_data *data
+ = (struct collect_matching_scripts_data *) info;
if (script->language == data->language && re_exec (script->name))
- VEC_safe_push (loaded_script_ptr, *data->scripts_p, script);
+ data->scripts_p->push_back (script);
return 1;
}
print_script (struct loaded_script *script)
{
struct ui_out *uiout = current_uiout;
- struct cleanup *chain;
- chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
+ ui_out_emit_tuple tuple_emitter (uiout, NULL);
- ui_out_field_string (uiout, "loaded", script->loaded ? "Yes" : "No");
- ui_out_field_string (uiout, "script", script->name);
- ui_out_text (uiout, "\n");
+ uiout->field_string ("loaded", script->loaded ? "Yes" : "No");
+ uiout->field_string ("script", script->name);
+ uiout->text ("\n");
/* If the name isn't the full path, print it too. */
if (script->full_path != NULL
&& strcmp (script->name, script->full_path) != 0)
{
- ui_out_text (uiout, "\tfull name: ");
- ui_out_field_string (uiout, "full_path", script->full_path);
- ui_out_text (uiout, "\n");
+ uiout->text ("\tfull name: ");
+ uiout->field_string ("full_path", script->full_path);
+ uiout->text ("\n");
}
-
- do_cleanups (chain);
}
/* Helper for info_auto_load_scripts to sort the scripts by name. */
-static int
-sort_scripts_by_name (const void *ap, const void *bp)
+static bool
+sort_scripts_by_name (loaded_script *a, loaded_script *b)
{
- const struct loaded_script *a = *(const struct loaded_script **) ap;
- const struct loaded_script *b = *(const struct loaded_script **) bp;
-
- return FILENAME_CMP (a->name, b->name);
+ return FILENAME_CMP (a->name, b->name) < 0;
}
/* Special internal GDB value of auto_load_info_scripts's PATTERN identify
"info auto-load" invocation. Extra newline will be printed if needed. */
char auto_load_info_scripts_pattern_nl[] = "";
+/* Subroutine of auto_load_info_scripts to simplify it.
+ Print SCRIPTS. */
+
+static void
+print_scripts (const std::vector<loaded_script *> &scripts)
+{
+ for (loaded_script *script : scripts)
+ print_script (script);
+}
+
/* Implementation for "info auto-load gdb-scripts"
(and "info auto-load python-scripts"). List scripts in LANGUAGE matching
PATTERN. FROM_TTY is the usual GDB boolean for user interactivity. */
{
struct ui_out *uiout = current_uiout;
struct auto_load_pspace_info *pspace_info;
- struct cleanup *script_chain;
- VEC (loaded_script_ptr) *scripts;
- int nr_scripts;
dont_repeat ();
Plus we want to sort the scripts by name.
So first traverse the hash table collecting the matching scripts. */
- scripts = VEC_alloc (loaded_script_ptr, 10);
- script_chain = make_cleanup (VEC_cleanup (loaded_script_ptr), &scripts);
+ std::vector<loaded_script *> script_files, script_texts;
+
+ if (pspace_info != NULL && pspace_info->loaded_script_files != NULL)
+ {
+ collect_matching_scripts_data data (&script_files, language);
+
+ /* Pass a pointer to scripts as VEC_safe_push can realloc space. */
+ htab_traverse_noresize (pspace_info->loaded_script_files,
+ collect_matching_scripts, &data);
+
+ std::sort (script_files.begin (), script_files.end (),
+ sort_scripts_by_name);
+ }
- if (pspace_info != NULL && pspace_info->loaded_scripts != NULL)
+ if (pspace_info != NULL && pspace_info->loaded_script_texts != NULL)
{
- struct collect_matching_scripts_data data = { &scripts, language };
+ collect_matching_scripts_data data (&script_texts, language);
/* Pass a pointer to scripts as VEC_safe_push can realloc space. */
- htab_traverse_noresize (pspace_info->loaded_scripts,
+ htab_traverse_noresize (pspace_info->loaded_script_texts,
collect_matching_scripts, &data);
+
+ std::sort (script_texts.begin (), script_texts.end (),
+ sort_scripts_by_name);
}
- nr_scripts = VEC_length (loaded_script_ptr, scripts);
+ int nr_scripts = script_files.size () + script_texts.size ();
/* Table header shifted right by preceding "gdb-scripts: " would not match
its columns. */
if (nr_scripts > 0 && pattern == auto_load_info_scripts_pattern_nl)
- ui_out_text (uiout, "\n");
+ uiout->text ("\n");
- make_cleanup_ui_out_table_begin_end (uiout, 2, nr_scripts,
- "AutoLoadedScriptsTable");
+ {
+ ui_out_emit_table table_emitter (uiout, 2, nr_scripts,
+ "AutoLoadedScriptsTable");
- ui_out_table_header (uiout, 7, ui_left, "loaded", "Loaded");
- ui_out_table_header (uiout, 70, ui_left, "script", "Script");
- ui_out_table_body (uiout);
+ uiout->table_header (7, ui_left, "loaded", "Loaded");
+ uiout->table_header (70, ui_left, "script", "Script");
+ uiout->table_body ();
- if (nr_scripts > 0)
- {
- int i;
- loaded_script_ptr script;
-
- qsort (VEC_address (loaded_script_ptr, scripts),
- VEC_length (loaded_script_ptr, scripts),
- sizeof (loaded_script_ptr), sort_scripts_by_name);
- for (i = 0; VEC_iterate (loaded_script_ptr, scripts, i, script); ++i)
- print_script (script);
- }
-
- do_cleanups (script_chain);
+ print_scripts (script_files);
+ print_scripts (script_texts);
+ }
if (nr_scripts == 0)
{
if (pattern && *pattern)
- ui_out_message (uiout, 0, "No auto-load scripts matching %s.\n",
- pattern);
+ uiout->message ("No auto-load scripts matching %s.\n", pattern);
else
- ui_out_message (uiout, 0, "No auto-load scripts.\n");
+ uiout->message ("No auto-load scripts.\n");
}
}
auto_load_local_gdbinit_pathname);
}
-/* Return non-zero if UNSUPPORTED_SCRIPT_WARNING_PRINTED of PSPACE_INFO was
- unset before calling this function. Always set
- UNSUPPORTED_SCRIPT_WARNING_PRINTED of PSPACE_INFO. */
+/* Print an "unsupported script" warning if it has not already been printed.
+ The script is in language LANGUAGE at offset OFFSET in section SECTION_NAME
+ of OBJFILE. */
-static int
-unsupported_script_warning_print (struct auto_load_pspace_info *pspace_info)
+static void
+maybe_print_unsupported_script_warning
+ (struct auto_load_pspace_info *pspace_info,
+ struct objfile *objfile, const struct extension_language_defn *language,
+ const char *section_name, unsigned offset)
{
- int retval = !pspace_info->unsupported_script_warning_printed;
-
- pspace_info->unsupported_script_warning_printed = 1;
-
- return retval;
+ if (!pspace_info->unsupported_script_warning_printed)
+ {
+ warning (_("\
+Unsupported auto-load script at offset %u in section %s\n\
+of file %s.\n\
+Use `info auto-load %s-scripts [REGEXP]' to list them."),
+ offset, section_name, objfile_name (objfile),
+ ext_lang_name (language));
+ pspace_info->unsupported_script_warning_printed = 1;
+ }
}
/* Return non-zero if SCRIPT_NOT_FOUND_WARNING_PRINTED of PSPACE_INFO was unset
before calling this function. Always set SCRIPT_NOT_FOUND_WARNING_PRINTED
of PSPACE_INFO. */
-static int
-script_not_found_warning_print (struct auto_load_pspace_info *pspace_info)
+static void
+maybe_print_script_not_found_warning
+ (struct auto_load_pspace_info *pspace_info,
+ struct objfile *objfile, const struct extension_language_defn *language,
+ const char *section_name, unsigned offset)
{
- int retval = !pspace_info->script_not_found_warning_printed;
-
- pspace_info->script_not_found_warning_printed = 1;
-
- return retval;
+ if (!pspace_info->script_not_found_warning_printed)
+ {
+ warning (_("\
+Missing auto-load script at offset %u in section %s\n\
+of file %s.\n\
+Use `info auto-load %s-scripts [REGEXP]' to list them."),
+ offset, section_name, objfile_name (objfile),
+ ext_lang_name (language));
+ pspace_info->script_not_found_warning_printed = 1;
+ }
}
/* The only valid "set auto-load" argument is off|0|no|disable. */
static void
-set_auto_load_cmd (char *args, int from_tty)
+set_auto_load_cmd (const char *args, int from_tty)
{
struct cmd_list_element *list;
size_t length;
"show auto-load " settings. */
static void
-show_auto_load_cmd (char *args, int from_tty)
+show_auto_load_cmd (const char *args, int from_tty)
{
cmd_show_list (*auto_load_show_cmdlist_get (), from_tty, "");
}
newlines at proper places. */
static void
-info_auto_load_cmd (char *args, int from_tty)
+info_auto_load_cmd (const char *args, int from_tty)
{
struct cmd_list_element *list;
struct cleanup *infolist_chain;
struct ui_out *uiout = current_uiout;
- infolist_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "infolist");
+ ui_out_emit_tuple tuple_emitter (uiout, "infolist");
for (list = *auto_load_info_cmdlist_get (); list != NULL; list = list->next)
{
- struct cleanup *option_chain
- = make_cleanup_ui_out_tuple_begin_end (uiout, "option");
+ ui_out_emit_tuple option_emitter (uiout, "option");
gdb_assert (!list->prefixlist);
gdb_assert (list->type == not_set_cmd);
- ui_out_field_string (uiout, "name", list->name);
- ui_out_text (uiout, ": ");
+ uiout->field_string ("name", list->name);
+ uiout->text (": ");
cmd_func (list, auto_load_info_scripts_pattern_nl, from_tty);
-
- /* Close the tuple. */
- do_cleanups (option_chain);
}
-
- /* Close the tuple. */
- do_cleanups (infolist_chain);
}
/* Initialize "info auto-load " commands prefix and return it. */
return &retval;
}
-void _initialize_auto_load (void);
-
void
_initialize_auto_load (void)
{
&cmdlist);
set_cmd_completer (cmd, filename_completer);
+ cmd = add_cmd ("add-auto-load-scripts-directory", class_support,
+ add_auto_load_dir,
+ _("Add entries to the list of directories from which to load "
+ "auto-loaded scripts.\n\
+See the commands 'set auto-load scripts-directory' and\n\
+'show auto-load scripts-directory' to access the current full list setting."),
+ &cmdlist);
+ set_cmd_completer (cmd, filename_completer);
+
add_setshow_boolean_cmd ("auto-load", class_maintenance,
&debug_auto_load, _("\
Set auto-load verifications debugging."), _("\