/* GDB routines for supporting auto-loaded scripts.
- Copyright (C) 2012-2018 Free Software Foundation, Inc.
+ Copyright (C) 2012-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "ui-out.h"
#include "filenames.h"
#include "command.h"
-#include "observer.h"
+#include "observable.h"
#include "objfiles.h"
#include "cli/cli-script.h"
#include "gdbcmd.h"
#include "completer.h"
#include "fnmatch.h"
#include "top.h"
-#include "filestuff.h"
+#include "gdbsupport/filestuff.h"
#include "extension.h"
#include "gdb/section-scripts.h"
#include <algorithm>
+#include "gdbsupport/pathstuff.h"
+#include "cli/cli-style.h"
/* The section to look in for auto-loaded scripts (in file formats that
support sections).
const char *section_name, unsigned offset);
/* Value of the 'set debug auto-load' configuration variable. */
-static int debug_auto_load = 0;
+static bool debug_auto_load = false;
/* "show" command for the debug_auto_load configuration variable. */
set auto-load gdb-scripts on|off
This is true if we should auto-load associated scripts when an objfile
is opened, false otherwise. */
-static int auto_load_gdb_scripts = 1;
+static bool auto_load_gdb_scripts = true;
/* "show" command for the auto_load_gdb_scripts configuration variable. */
This flag exists to facilitate deferring auto-loading during start-up
until after ./.gdbinit has been read; it may augment the search directories
used to find the scripts. */
-int global_auto_load = 1;
+bool global_auto_load = true;
/* Auto-load .gdbinit file from the current directory? */
-int auto_load_local_gdbinit = 1;
+bool auto_load_local_gdbinit = true;
/* Absolute pathname to the current directory .gdbinit, if it exists. */
char *auto_load_local_gdbinit_pathname = NULL;
-/* Boolean value if AUTO_LOAD_LOCAL_GDBINIT_PATHNAME has been loaded. */
-int auto_load_local_gdbinit_loaded = 0;
+/* if AUTO_LOAD_LOCAL_GDBINIT_PATHNAME has been loaded. */
+bool auto_load_local_gdbinit_loaded = false;
/* "show" command for the auto_load_local_gdbinit configuration variable. */
/* Vector of directory elements of AUTO_LOAD_SAFE_PATH with each one normalized
by tilde_expand and possibly each entries has added its gdb_realpath
counterpart. */
-static VEC (char_ptr) *auto_load_safe_path_vec;
+std::vector<gdb::unique_xmalloc_ptr<char>> auto_load_safe_path_vec;
/* Expand $datadir and $debugdir in STRING according to the rules of
- substitute_path_component. Return vector from dirnames_to_char_ptr_vec,
- this vector must be freed by free_char_ptr_vec by the caller. */
+ substitute_path_component. */
-static VEC (char_ptr) *
+static std::vector<gdb::unique_xmalloc_ptr<char>>
auto_load_expand_dir_vars (const char *string)
{
- VEC (char_ptr) *dir_vec;
- char *s;
-
- s = xstrdup (string);
- substitute_path_component (&s, "$datadir", gdb_datadir);
+ char *s = xstrdup (string);
+ substitute_path_component (&s, "$datadir", gdb_datadir.c_str ());
substitute_path_component (&s, "$debugdir", debug_file_directory);
if (debug_auto_load && strcmp (s, string) != 0)
fprintf_unfiltered (gdb_stdlog,
_("auto-load: Expanded $-variables to \"%s\".\n"), s);
- dir_vec = dirnames_to_char_ptr_vec (s);
+ std::vector<gdb::unique_xmalloc_ptr<char>> dir_vec
+ = dirnames_to_char_ptr_vec (s);
xfree(s);
return dir_vec;
static void
auto_load_safe_path_vec_update (void)
{
- unsigned len;
- int ix;
-
if (debug_auto_load)
fprintf_unfiltered (gdb_stdlog,
_("auto-load: Updating directories of \"%s\".\n"),
auto_load_safe_path);
- free_char_ptr_vec (auto_load_safe_path_vec);
-
auto_load_safe_path_vec = auto_load_expand_dir_vars (auto_load_safe_path);
- len = VEC_length (char_ptr, auto_load_safe_path_vec);
+ size_t len = auto_load_safe_path_vec.size ();
/* Apply tilde_expand and gdb_realpath to each AUTO_LOAD_SAFE_PATH_VEC
element. */
- for (ix = 0; ix < len; ix++)
+ for (size_t i = 0; i < len; i++)
{
- char *dir = VEC_index (char_ptr, auto_load_safe_path_vec, ix);
- char *expanded = tilde_expand (dir);
- gdb::unique_xmalloc_ptr<char> real_path = gdb_realpath (expanded);
+ gdb::unique_xmalloc_ptr<char> &in_vec = auto_load_safe_path_vec[i];
+ gdb::unique_xmalloc_ptr<char> expanded (tilde_expand (in_vec.get ()));
+ gdb::unique_xmalloc_ptr<char> real_path = gdb_realpath (expanded.get ());
- /* Ensure the current entry is at least tilde_expand-ed. */
- VEC_replace (char_ptr, auto_load_safe_path_vec, ix, expanded);
+ /* Ensure the current entry is at least tilde_expand-ed. ORIGINAL makes
+ sure we free the original string. */
+ gdb::unique_xmalloc_ptr<char> original = std::move (in_vec);
+ in_vec = std::move (expanded);
if (debug_auto_load)
{
- if (strcmp (expanded, dir) == 0)
+ if (strcmp (in_vec.get (), original.get ()) == 0)
fprintf_unfiltered (gdb_stdlog,
_("auto-load: Using directory \"%s\".\n"),
- expanded);
+ in_vec.get ());
else
fprintf_unfiltered (gdb_stdlog,
_("auto-load: Resolved directory \"%s\" "
"as \"%s\".\n"),
- dir, expanded);
+ original.get (), in_vec.get ());
}
- xfree (dir);
/* If gdb_realpath returns a different content, append it. */
- if (strcmp (real_path.get (), expanded) != 0)
+ if (strcmp (real_path.get (), in_vec.get ()) != 0)
{
if (debug_auto_load)
fprintf_unfiltered (gdb_stdlog,
_("auto-load: And canonicalized as \"%s\".\n"),
real_path.get ());
- VEC_safe_push (char_ptr, auto_load_safe_path_vec,
- real_path.release ());
+ auto_load_safe_path_vec.push_back (std::move (real_path));
}
}
}
filename_is_in_auto_load_safe_path_vec (const char *filename,
gdb::unique_xmalloc_ptr<char> *filename_realp)
{
- char *pattern;
- int ix;
+ const char *pattern = NULL;
- for (ix = 0; VEC_iterate (char_ptr, auto_load_safe_path_vec, ix, pattern);
- ++ix)
- if (*filename_realp == NULL && filename_is_in_pattern (filename, pattern))
- break;
+ for (const gdb::unique_xmalloc_ptr<char> &p : auto_load_safe_path_vec)
+ if (*filename_realp == NULL && filename_is_in_pattern (filename, p.get ()))
+ {
+ pattern = p.get ();
+ break;
+ }
if (pattern == NULL)
{
}
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->get (), pattern))
- break;
+ for (const gdb::unique_xmalloc_ptr<char> &p : auto_load_safe_path_vec)
+ if (filename_is_in_pattern (filename_realp->get (), p.get ()))
+ {
+ pattern = p.get ();
+ break;
+ }
}
if (pattern != NULL)
if (filename_is_in_auto_load_safe_path_vec (filename, &filename_real))
return 1;
- warning (_("File \"%s\" auto-loading has been declined by your "
+ warning (_("File \"%ps\" auto-loading has been declined by your "
"`auto-load safe-path' set to \"%s\"."),
- filename_real.get (), auto_load_safe_path);
+ styled_string (file_name_style.style (), filename_real.get ()),
+ auto_load_safe_path);
if (!advice_printed)
{
if (homedir == NULL)
homedir = "$HOME";
- std::string homeinit = string_printf ("%s/%s", homedir, gdbinit);
+ std::string homeinit = string_printf ("%s/%s", homedir, GDBINIT);
printf_filtered (_("\
To enable execution of this file add\n\
struct auto_load_pspace_info
{
+ auto_load_pspace_info () = default;
+ ~auto_load_pspace_info ();
+
/* 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;
+ struct htab *loaded_script_files = nullptr;
+ struct htab *loaded_script_texts = nullptr;
/* 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 unsupported_script_warning_printed;
+ bool unsupported_script_warning_printed = false;
/* Non-zero if we've issued the warning about an auto-load script not being
found. We only want to issue this warning once. */
- int script_not_found_warning_printed;
+ bool script_not_found_warning_printed = false;
};
/* Objects of this type are stored in the loaded_script hash table. */
};
/* Per-program-space data key. */
-static const struct program_space_data *auto_load_pspace_data;
+static const struct program_space_key<struct auto_load_pspace_info>
+ auto_load_pspace_data;
-static void
-auto_load_pspace_data_cleanup (struct program_space *pspace, void *arg)
+auto_load_pspace_info::~auto_load_pspace_info ()
{
- struct auto_load_pspace_info *info = (struct auto_load_pspace_info *) arg;
-
- if (info->loaded_script_files)
- htab_delete (info->loaded_script_files);
- if (info->loaded_script_texts)
- htab_delete (info->loaded_script_texts);
- xfree (info);
+ if (loaded_script_files)
+ htab_delete (loaded_script_files);
+ if (loaded_script_texts)
+ htab_delete (loaded_script_texts);
}
/* Get the current autoload data. If none is found yet, add it now. This
{
struct auto_load_pspace_info *info;
- info = ((struct auto_load_pspace_info *)
- program_space_data (pspace, auto_load_pspace_data));
+ info = auto_load_pspace_data.get (pspace);
if (info == NULL)
- {
- info = XCNEW (struct auto_load_pspace_info);
- set_program_space_data (pspace, auto_load_pspace_data, info);
- }
+ info = auto_load_pspace_data.emplace (pspace);
return info;
}
eq_loaded_script_entry,
xfree);
- pspace_info->unsupported_script_warning_printed = FALSE;
- pspace_info->script_not_found_warning_printed = FALSE;
+ pspace_info->unsupported_script_warning_printed = false;
+ pspace_info->script_not_found_warning_printed = false;
}
/* Wrapper on get_auto_load_pspace_data to also allocate the hash table
struct program_space *pspace = current_program_space;
struct auto_load_pspace_info *info;
- info = ((struct auto_load_pspace_info *)
- program_space_data (pspace, auto_load_pspace_data));
+ info = auto_load_pspace_data.get (pspace);
if (info != NULL && info->loaded_script_files != 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;
- }
+ auto_load_pspace_data.clear (pspace);
}
/* Look for the auto-load script in LANGUAGE associated with OBJFILE where
auto_load_objfile_script_1 (struct objfile *objfile, const char *realname,
const struct extension_language_defn *language)
{
- char *filename, *debugfile;
- int len, retval;
- struct cleanup *cleanups;
+ const char *debugfile;
+ int retval;
const char *suffix = ext_lang_auto_load_suffix (language);
- len = strlen (realname);
- filename = (char *) xmalloc (len + strlen (suffix) + 1);
- memcpy (filename, realname, len);
- strcpy (filename + len, suffix);
-
- cleanups = make_cleanup (xfree, filename);
+ std::string filename = std::string (realname) + suffix;
- gdb_file_up input = gdb_fopen_cloexec (filename, "r");
- debugfile = filename;
+ gdb_file_up input = gdb_fopen_cloexec (filename.c_str (), "r");
+ debugfile = filename.c_str ();
if (debug_auto_load)
fprintf_unfiltered (gdb_stdlog, _("auto-load: Attempted file \"%s\" %s.\n"),
debugfile, input ? _("exists") : _("does not exist"));
+ std::string debugfile_holder;
if (!input)
{
- VEC (char_ptr) *vec;
- int ix;
- char *dir;
-
/* Also try the same file in a subdirectory of gdb's data
directory. */
- vec = auto_load_expand_dir_vars (auto_load_dir);
- make_cleanup_free_char_ptr_vec (vec);
+ std::vector<gdb::unique_xmalloc_ptr<char>> vec
+ = auto_load_expand_dir_vars (auto_load_dir);
if (debug_auto_load)
fprintf_unfiltered (gdb_stdlog, _("auto-load: Searching 'set auto-load "
"scripts-directory' path \"%s\".\n"),
auto_load_dir);
- for (ix = 0; VEC_iterate (char_ptr, vec, ix, dir); ++ix)
+ for (const gdb::unique_xmalloc_ptr<char> &dir : vec)
{
- debugfile = (char *) xmalloc (strlen (dir) + strlen (filename) + 1);
- strcpy (debugfile, dir);
-
/* FILENAME is absolute, so we don't need a "/" here. */
- strcat (debugfile, filename);
+ debugfile_holder = dir.get () + filename;
+ debugfile = debugfile_holder.c_str ();
- make_cleanup (xfree, debugfile);
input = gdb_fopen_cloexec (debugfile, "r");
if (debug_auto_load)
fprintf_unfiltered (gdb_stdlog, _("auto-load: Attempted file "
else
retval = 0;
- do_cleanups (cleanups);
return retval;
}
{
objfile_script_executor_func *executor;
const char *newline, *script_text;
- char *name;
+ const 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');
+ std::string name_holder;
if (newline != NULL)
{
- char *buf, *p;
+ const char *buf, *p;
/* Put the name in a buffer and validate it. */
- buf = xstrndup (script, newline - script);
- make_cleanup (xfree, buf);
+ name_holder = std::string (script, newline - script);
+ buf = name_holder.c_str ();
for (p = buf; *p != '\0'; ++p)
{
if (isspace (*p))
/* 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);
+of file %ps."),
+ offset, section_name,
+ styled_string (file_name_style.style (),
+ objfile_name (objfile)));
return;
}
script_text = newline + 1;
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;
}
if (!ext_lang_auto_load_enabled (language))
{
/* No message is printed, just skip it. */
- do_cleanups (cleanups);
return;
}
/* If this file is not currently loaded, load it. */
if (is_safe && !in_hash_table)
executor (language, objfile, name, script_text);
-
- do_cleanups (cleanups);
}
/* Load scripts specified in OBJFILE.
scripts_sect = bfd_get_section_by_name (abfd, section_name);
if (scripts_sect == NULL
- || (bfd_get_section_flags (abfd, scripts_sect) & SEC_HAS_CONTENTS) == 0)
+ || (bfd_section_flags (scripts_sect) & SEC_HAS_CONTENTS) == 0)
return;
if (!bfd_get_full_section_contents (abfd, scripts_sect, &data))
- warning (_("Couldn't read %s section of %s"),
- section_name, bfd_get_filename (abfd));
+ warning (_("Couldn't read %s section of %ps"),
+ section_name,
+ styled_string (file_name_style.style (),
+ bfd_get_filename (abfd)));
else
{
- struct cleanup *cleanups;
- char *p = (char *) data;
+ gdb::unique_xmalloc_ptr<bfd_byte> data_holder (data);
- cleanups = make_cleanup (xfree, p);
+ char *p = (char *) data;
source_section_scripts (objfile, section_name, p,
- p + bfd_get_section_size (scripts_sect));
- do_cleanups (cleanups);
+ p + bfd_section_size (scripts_sect));
}
}
if (auto_load_local_gdbinit_pathname == NULL)
printf_filtered (_("Local .gdbinit file was not found.\n"));
else if (auto_load_local_gdbinit_loaded)
- printf_filtered (_("Local .gdbinit file \"%s\" has been loaded.\n"),
- auto_load_local_gdbinit_pathname);
+ printf_filtered (_("Local .gdbinit file \"%ps\" has been loaded.\n"),
+ styled_string (file_name_style.style (),
+ auto_load_local_gdbinit_pathname));
else
- printf_filtered (_("Local .gdbinit file \"%s\" has not been loaded.\n"),
- auto_load_local_gdbinit_pathname);
+ printf_filtered (_("Local .gdbinit file \"%ps\" has not been loaded.\n"),
+ styled_string (file_name_style.style (),
+ auto_load_local_gdbinit_pathname));
}
/* Print an "unsupported script" warning if it has not already been printed.
{
warning (_("\
Unsupported auto-load script at offset %u in section %s\n\
-of file %s.\n\
+of file %ps.\n\
Use `info auto-load %s-scripts [REGEXP]' to list them."),
- offset, section_name, objfile_name (objfile),
+ offset, section_name,
+ styled_string (file_name_style.style (),
+ objfile_name (objfile)),
ext_lang_name (language));
- pspace_info->unsupported_script_warning_printed = 1;
+ pspace_info->unsupported_script_warning_printed = true;
}
}
{
warning (_("\
Missing auto-load script at offset %u in section %s\n\
-of file %s.\n\
+of file %ps.\n\
Use `info auto-load %s-scripts [REGEXP]' to list them."),
- offset, section_name, objfile_name (objfile),
+ offset, section_name,
+ styled_string (file_name_style.style (),
+ objfile_name (objfile)),
ext_lang_name (language));
- pspace_info->script_not_found_warning_printed = 1;
+ pspace_info->script_not_found_warning_printed = true;
}
}
return &retval;
}
-/* Command "show auto-load" displays summary of all the current
- "show auto-load " settings. */
-
-static void
-show_auto_load_cmd (const char *args, int from_tty)
-{
- cmd_show_list (*auto_load_show_cmdlist_get (), from_tty, "");
-}
-
/* Initialize "show auto-load " commands prefix and return it. */
struct cmd_list_element **
static struct cmd_list_element *retval;
if (retval == NULL)
- add_prefix_cmd ("auto-load", class_maintenance, show_auto_load_cmd, _("\
+ add_show_prefix_cmd ("auto-load", class_maintenance, _("\
Show auto-loading specific settings.\n\
Show configuration of various auto-load-specific variables such as\n\
automatic loading of Python scripts."),
- &retval, "show auto-load ",
- 0/*allow-unknown*/, &showlist);
+ &retval, "show auto-load ",
+ 0/*allow-unknown*/, &showlist);
return &retval;
}
return &retval;
}
+void _initialize_auto_load ();
void
-_initialize_auto_load (void)
+_initialize_auto_load ()
{
struct cmd_list_element *cmd;
char *scripts_directory_help, *gdb_name_help, *python_name_help;
char *guile_name_help;
const char *suffix;
- auto_load_pspace_data
- = register_program_space_data_with_cleanup (NULL,
- auto_load_pspace_data_cleanup);
-
- observer_attach_new_objfile (auto_load_new_objfile);
+ gdb::observers::new_objfile.attach (auto_load_new_objfile);
add_setshow_boolean_cmd ("gdb-scripts", class_support,
&auto_load_gdb_scripts, _("\
_("\
If enabled, canned sequences of commands are loaded when the debugger reads\n\
an executable or shared library.\n\
-This options has security implications for untrusted inferiors."),
+This option has security implications for untrusted inferiors."),
NULL, show_auto_load_gdb_scripts,
auto_load_set_cmdlist_get (),
auto_load_show_cmdlist_get ());
If enabled, canned sequences of commands are loaded when debugger starts\n\
from .gdbinit file in current directory. Such files are deprecated,\n\
use a script associated with inferior executable file instead.\n\
-This options has security implications for untrusted inferiors."),
+This option has security implications for untrusted inferiors."),
NULL, show_auto_load_local_gdbinit,
auto_load_set_cmdlist_get (),
auto_load_show_cmdlist_get ());
for the 'set auto-load ...' options. Each path entry can be also shell\n\
wildcard pattern; '*' does not match directory separator.\n\
This option is ignored for the kinds of files having 'set auto-load ... off'.\n\
-This options has security implications for untrusted inferiors."),
+This option has security implications for untrusted inferiors."),
set_auto_load_safe_path,
show_auto_load_safe_path,
auto_load_set_cmdlist_get (),
auto_load_show_cmdlist_get ());
- observer_attach_gdb_datadir_changed (auto_load_gdb_datadir_changed);
+ gdb::observers::gdb_datadir_changed.attach (auto_load_gdb_datadir_changed);
cmd = add_cmd ("add-auto-load-safe-path", class_support,
add_auto_load_safe_path,
projects / deliverable / binutils-gdb.git / blobdiff