/* Top level stuff for GDB, the GNU debugger.
- Copyright (C) 1986-2021 Free Software Foundation, Inc.
+ Copyright (C) 1986-2022 Free Software Foundation, Inc.
This file is part of GDB.
#endif
#include "gdbsupport/alt-stack.h"
#include "observable.h"
+#include "serial.h"
/* The selected interpreter. This will be used as a set command
variable, so it should always be malloc'ed - since
do_setshow_command will free it. */
char *interpreter_p;
-/* Whether dbx commands will be handled. */
-int dbx_commands = 0;
-
/* System root path, used to find libraries etc. */
-char *gdb_sysroot = 0;
+std::string gdb_sysroot;
/* GDB datadir, used to store data files. */
std::string gdb_datadir;
{
int save_errno = errno;
- fprintf_unfiltered (gdb_stderr, "Warning: ");
+ gdb_printf (gdb_stderr, "Warning: ");
print_sys_errmsg (new_datadir, save_errno);
}
else if (!S_ISDIR (st.st_mode))
"../foo" and "../foo" doesn't exist then we'll record $(pwd)/../foo which
isn't canonical, but that's ok. */
if (!IS_ABSOLUTE_PATH (gdb_datadir.c_str ()))
- {
- gdb::unique_xmalloc_ptr<char> abs_datadir
- = gdb_abspath (gdb_datadir.c_str ());
-
- gdb_datadir = abs_datadir.get ();
- }
+ gdb_datadir = gdb_abspath (gdb_datadir.c_str ());
}
/* Relocate a file or directory. PROGNAME is the name by which gdb
otherwise. */
static std::string
-relocate_gdbinit_path_maybe_in_datadir (const std::string &file,
- bool relocatable)
+relocate_file_path_maybe_in_datadir (const std::string &file,
+ bool relocatable)
{
size_t datadir_len = strlen (GDB_DATADIR);
return relocated_path;
}
-/* Compute the locations of init files that GDB should source and
- return them in SYSTEM_GDBINIT, HOME_GDBINIT, LOCAL_GDBINIT. If
- there is no system gdbinit (resp. home gdbinit and local gdbinit)
- to be loaded, then SYSTEM_GDBINIT (resp. HOME_GDBINIT and
- LOCAL_GDBINIT) is set to the empty string. */
-static void
-get_init_files (std::vector<std::string> *system_gdbinit,
- std::string *home_gdbinit,
- std::string *local_gdbinit)
+/* A class to wrap up the logic for finding the three different types of
+ initialisation files GDB uses, system wide, home directory, and current
+ working directory. */
+
+class gdb_initfile_finder
{
- static std::vector<std::string> sysgdbinit;
- static std::string homeinit;
- static std::string localinit;
- static int initialized = 0;
+public:
+ /* Constructor. Finds initialisation files named FILENAME in the home
+ directory or local (current working) directory. System initialisation
+ files are found in both SYSTEM_FILENAME and SYSTEM_DIRNAME if these
+ are not nullptr (either or both can be). The matching *_RELOCATABLE
+ flag is passed through to RELOCATE_FILE_PATH_MAYBE_IN_DATADIR.
+
+ If FILENAME starts with a '.' then when looking in the home directory
+ this first '.' can be ignored in some cases. */
+ explicit gdb_initfile_finder (const char *filename,
+ const char *system_filename,
+ bool system_filename_relocatable,
+ const char *system_dirname,
+ bool system_dirname_relocatable,
+ bool lookup_local_file)
+ {
+ struct stat s;
- if (!initialized)
- {
- struct stat homebuf, cwdbuf, s;
+ if (system_filename != nullptr && system_filename[0] != '\0')
+ {
+ std::string relocated_filename
+ = relocate_file_path_maybe_in_datadir (system_filename,
+ system_filename_relocatable);
+ if (!relocated_filename.empty ()
+ && stat (relocated_filename.c_str (), &s) == 0)
+ m_system_files.push_back (relocated_filename);
+ }
- if (SYSTEM_GDBINIT[0])
- {
- std::string relocated_sysgdbinit
- = relocate_gdbinit_path_maybe_in_datadir
- (SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE);
- if (!relocated_sysgdbinit.empty ()
- && stat (relocated_sysgdbinit.c_str (), &s) == 0)
- sysgdbinit.push_back (relocated_sysgdbinit);
- }
- if (SYSTEM_GDBINIT_DIR[0])
- {
- std::string relocated_gdbinit_dir
- = relocate_gdbinit_path_maybe_in_datadir
- (SYSTEM_GDBINIT_DIR, SYSTEM_GDBINIT_DIR_RELOCATABLE);
- if (!relocated_gdbinit_dir.empty ()) {
- gdb_dir_up dir (opendir (relocated_gdbinit_dir.c_str ()));
+ if (system_dirname != nullptr && system_dirname[0] != '\0')
+ {
+ std::string relocated_dirname
+ = relocate_file_path_maybe_in_datadir (system_dirname,
+ system_dirname_relocatable);
+ if (!relocated_dirname.empty ())
+ {
+ gdb_dir_up dir (opendir (relocated_dirname.c_str ()));
if (dir != nullptr)
{
std::vector<std::string> files;
- for (;;)
+ while (true)
{
struct dirent *ent = readdir (dir.get ());
if (ent == nullptr)
std::string name (ent->d_name);
if (name == "." || name == "..")
continue;
- /* ent->d_type is not available on all systems (e.g. mingw,
- Solaris), so we have to call stat(). */
- std::string filename
- = relocated_gdbinit_dir + SLASH_STRING + name;
- if (stat (filename.c_str (), &s) != 0
+ /* ent->d_type is not available on all systems
+ (e.g. mingw, Solaris), so we have to call stat(). */
+ std::string tmp_filename
+ = relocated_dirname + SLASH_STRING + name;
+ if (stat (tmp_filename.c_str (), &s) != 0
|| !S_ISREG (s.st_mode))
continue;
const struct extension_language_defn *extlang
- = get_ext_lang_of_file (filename.c_str ());
+ = get_ext_lang_of_file (tmp_filename.c_str ());
/* We effectively don't support "set script-extension
- off/soft", because we are loading system init files here,
- so it does not really make sense to depend on a
- setting. */
+ off/soft", because we are loading system init files
+ here, so it does not really make sense to depend on
+ a setting. */
if (extlang != nullptr && ext_lang_present_p (extlang))
- files.push_back (std::move (filename));
+ files.push_back (std::move (tmp_filename));
}
std::sort (files.begin (), files.end ());
- sysgdbinit.insert (sysgdbinit.end (),
- files.begin (), files.end ());
+ m_system_files.insert (m_system_files.end (),
+ files.begin (), files.end ());
}
}
- }
+ }
/* If the .gdbinit file in the current directory is the same as
the $HOME/.gdbinit file, it should not be sourced. homebuf
are zero in case one of them fails (this guarantees that they
won't match if either exists). */
- memset (&homebuf, 0, sizeof (struct stat));
- memset (&cwdbuf, 0, sizeof (struct stat));
+ struct stat homebuf, cwdbuf;
+ memset (&homebuf, 0, sizeof (struct stat));
+ memset (&cwdbuf, 0, sizeof (struct stat));
- homeinit = find_gdb_home_config_file (GDBINIT, &homebuf);
+ m_home_file = find_gdb_home_config_file (filename, &homebuf);
- if (stat (GDBINIT, &cwdbuf) == 0)
- {
- if (homeinit.empty ()
- || memcmp ((char *) &homebuf, (char *) &cwdbuf,
- sizeof (struct stat)))
- localinit = GDBINIT;
- }
+ if (lookup_local_file && stat (filename, &cwdbuf) == 0)
+ {
+ if (m_home_file.empty ()
+ || memcmp ((char *) &homebuf, (char *) &cwdbuf,
+ sizeof (struct stat)))
+ m_local_file = filename;
+ }
+ }
- initialized = 1;
- }
+ DISABLE_COPY_AND_ASSIGN (gdb_initfile_finder);
+
+ /* Return a list of system initialisation files. The list could be
+ empty. */
+ const std::vector<std::string> &system_files () const
+ { return m_system_files; }
+
+ /* Return the path to the home initialisation file. The string can be
+ empty if there is no such file. */
+ const std::string &home_file () const
+ { return m_home_file; }
+
+ /* Return the path to the local initialisation file. The string can be
+ empty if there is no such file. */
+ const std::string &local_file () const
+ { return m_local_file; }
+
+private:
+
+ /* Vector of all system init files in the order they should be processed.
+ Could be empty. */
+ std::vector<std::string> m_system_files;
- *system_gdbinit = sysgdbinit;
- *home_gdbinit = homeinit;
- *local_gdbinit = localinit;
+ /* Initialization file from the home directory. Could be the empty
+ string if there is no such file found. */
+ std::string m_home_file;
+
+ /* Initialization file from the current working directory. Could be the
+ empty string if there is no such file found. */
+ std::string m_local_file;
+};
+
+/* Compute the locations of init files that GDB should source and return
+ them in SYSTEM_GDBINIT, HOME_GDBINIT, LOCAL_GDBINIT. The SYSTEM_GDBINIT
+ can be returned as an empty vector, and HOME_GDBINIT and LOCAL_GDBINIT
+ can be returned as empty strings if there is no init file of that
+ type. */
+
+static void
+get_init_files (std::vector<std::string> *system_gdbinit,
+ std::string *home_gdbinit,
+ std::string *local_gdbinit)
+{
+ /* Cache the file lookup object so we only actually search for the files
+ once. */
+ static gdb::optional<gdb_initfile_finder> init_files;
+ if (!init_files.has_value ())
+ init_files.emplace (GDBINIT, SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE,
+ SYSTEM_GDBINIT_DIR, SYSTEM_GDBINIT_DIR_RELOCATABLE,
+ true);
+
+ *system_gdbinit = init_files->system_files ();
+ *home_gdbinit = init_files->home_file ();
+ *local_gdbinit = init_files->local_file ();
+}
+
+/* Compute the location of the early init file GDB should source and return
+ it in HOME_GDBEARLYINIT. HOME_GDBEARLYINIT could be returned as an
+ empty string if there is no early init file found. */
+
+static void
+get_earlyinit_files (std::string *home_gdbearlyinit)
+{
+ /* Cache the file lookup object so we only actually search for the files
+ once. */
+ static gdb::optional<gdb_initfile_finder> init_files;
+ if (!init_files.has_value ())
+ init_files.emplace (GDBEARLYINIT, nullptr, false, nullptr, false, false);
+
+ *home_gdbearlyinit = init_files->home_file ();
}
/* Start up the event loop. This is the entry point to the event loop
/* Option type -ix. */
CMDARG_INIT_FILE,
-
+
/* Option type -iex. */
- CMDARG_INIT_COMMAND
+ CMDARG_INIT_COMMAND,
+
+ /* Option type -eix. */
+ CMDARG_EARLYINIT_FILE,
+
+ /* Option type -eiex. */
+ CMDARG_EARLYINIT_COMMAND
};
/* Arguments of --command option and its counterpart. */
/* Prefix warning messages with the command name. */
gdb::unique_xmalloc_ptr<char> tmp_warn_preprint
- (xstrprintf ("%s: warning: ", gdb_program_name));
+ = xstrprintf ("%s: warning: ", gdb_program_name);
warning_pre_print = tmp_warn_preprint.get ();
current_directory = getcwd (NULL, 0);
perror_warning_with_name (_("error finding working directory"));
/* Set the sysroot path. */
- gdb_sysroot
- = xstrdup (relocate_gdb_directory (TARGET_SYSTEM_ROOT,
- TARGET_SYSTEM_ROOT_RELOCATABLE).c_str ());
+ gdb_sysroot = relocate_gdb_directory (TARGET_SYSTEM_ROOT,
+ TARGET_SYSTEM_ROOT_RELOCATABLE);
- if (*gdb_sysroot == '\0')
- {
- xfree (gdb_sysroot);
- gdb_sysroot = xstrdup (TARGET_SYSROOT_PREFIX);
- }
+ if (gdb_sysroot.empty ())
+ gdb_sysroot = TARGET_SYSROOT_PREFIX;
debug_file_directory
- = xstrdup (relocate_gdb_directory (DEBUGDIR,
- DEBUGDIR_RELOCATABLE).c_str ());
+ = relocate_gdb_directory (DEBUGDIR, DEBUGDIR_RELOCATABLE);
gdb_datadir = relocate_gdb_directory (GDB_DATADIR,
GDB_DATADIR_RELOCATABLE);
OPT_WINDOWS,
OPT_IX,
OPT_IEX,
+ OPT_EIX,
+ OPT_EIEX,
OPT_READNOW,
OPT_READNEVER
};
static struct option long_options[] =
{
{"tui", no_argument, 0, OPT_TUI},
- {"dbx", no_argument, &dbx_commands, 1},
{"readnow", no_argument, NULL, OPT_READNOW},
{"readnever", no_argument, NULL, OPT_READNEVER},
{"r", no_argument, NULL, OPT_READNOW},
{"init-eval-command", required_argument, 0, OPT_IEX},
{"ix", required_argument, 0, OPT_IX},
{"iex", required_argument, 0, OPT_IEX},
+ {"early-init-command", required_argument, 0, OPT_EIX},
+ {"early-init-eval-command", required_argument, 0, OPT_EIEX},
+ {"eix", required_argument, 0, OPT_EIX},
+ {"eiex", required_argument, 0, OPT_EIEX},
#ifdef GDBTK
{"tclcommand", required_argument, 0, 'z'},
{"enable-external-editor", no_argument, 0, 'y'},
case OPT_IEX:
cmdarg_vec.emplace_back (CMDARG_INIT_COMMAND, optarg);
break;
+ case OPT_EIX:
+ cmdarg_vec.emplace_back (CMDARG_EARLYINIT_FILE, optarg);
+ break;
+ case OPT_EIEX:
+ cmdarg_vec.emplace_back (CMDARG_EARLYINIT_COMMAND, optarg);
+ break;
case 'B':
batch_flag = batch_silent = 1;
gdb_stdout = new null_file ();
gdb::alternate_signal_stack signal_stack;
/* Initialize all files. */
- gdb_init (gdb_program_name);
+ gdb_init ();
+
+ /* Process early init files and early init options from the command line. */
+ if (!inhibit_gdbinit)
+ {
+ std::string home_gdbearlyinit;
+ get_earlyinit_files (&home_gdbearlyinit);
+ if (!home_gdbearlyinit.empty () && !inhibit_home_gdbinit)
+ ret = catch_command_errors (source_script,
+ home_gdbearlyinit.c_str (), 0);
+ }
+ execute_cmdargs (&cmdarg_vec, CMDARG_EARLYINIT_FILE,
+ CMDARG_EARLYINIT_COMMAND, &ret);
+
+ /* Initialize the extension languages. */
+ ext_lang_initialization ();
+
+ /* Recheck if we're starting up quietly after processing the startup
+ scripts and commands. */
+ if (!quiet)
+ quiet = check_quiet_mode ();
/* Now that gdb_init has created the initial inferior, we're in
position to set args for that inferior. */
/* Any argument left on the command line is unexpected and
will be ignored. Inform the user. */
if (optind < argc)
- fprintf_unfiltered (gdb_stderr,
- _("Excess command line "
- "arguments ignored. (%s%s)\n"),
- argv[optind],
- (optind == argc - 1) ? "" : " ...");
+ gdb_printf (gdb_stderr,
+ _("Excess command line "
+ "arguments ignored. (%s%s)\n"),
+ argv[optind],
+ (optind == argc - 1) ? "" : " ...");
}
/* Lookup gdbinit files. Note that the gdbinit file name may be
if (print_version)
{
print_gdb_version (gdb_stdout, false);
- wrap_here ("");
- printf_filtered ("\n");
+ gdb_printf ("\n");
exit (0);
}
if (print_configuration)
{
print_gdb_configuration (gdb_stdout);
- wrap_here ("");
- printf_filtered ("\n");
+ gdb_printf ("\n");
exit (0);
}
about to read a symbol file (possibly slowly). */
print_gdb_version (gdb_stdout, true);
if (symarg)
- printf_filtered ("..");
- wrap_here ("");
- printf_filtered ("\n");
+ gdb_printf ("..");
+ gdb_printf ("\n");
gdb_flush (gdb_stdout); /* Force to screen during slow
operations. */
}
about to read a symbol file (possibly slowly). */
print_gdb_version (gdb_stdout, true);
if (symarg)
- printf_filtered ("..");
- wrap_here ("");
- printf_filtered ("\n");
+ gdb_printf ("..");
+ gdb_printf ("\n");
gdb_flush (gdb_stdout); /* Force to screen during slow
operations. */
}
auto_load_local_gdbinit_pathname
= gdb_realpath (local_gdbinit.c_str ()).release ();
- if (!inhibit_gdbinit && auto_load_local_gdbinit
- && file_is_auto_load_safe (local_gdbinit.c_str (),
- _("auto-load: Loading .gdbinit "
- "file \"%s\".\n"),
- local_gdbinit.c_str ()))
+ if (!inhibit_gdbinit && auto_load_local_gdbinit)
{
- auto_load_local_gdbinit_loaded = 1;
+ auto_load_debug_printf ("Loading .gdbinit file \"%s\".",
+ local_gdbinit.c_str ());
- ret = catch_command_errors (source_script, local_gdbinit.c_str (), 0);
+ if (file_is_auto_load_safe (local_gdbinit.c_str ()))
+ {
+ auto_load_local_gdbinit_loaded = 1;
+
+ ret = catch_command_errors (source_script, local_gdbinit.c_str (), 0);
+ }
}
}
std::vector<std::string> system_gdbinit;
std::string home_gdbinit;
std::string local_gdbinit;
+ std::string home_gdbearlyinit;
get_init_files (&system_gdbinit, &home_gdbinit, &local_gdbinit);
+ get_earlyinit_files (&home_gdbearlyinit);
/* Note: The options in the list below are only approximately sorted
in the alphabetical order, so as to group closely related options
together. */
- fputs_unfiltered (_("\
+ gdb_puts (_("\
This is the GNU debugger. Usage:\n\n\
gdb [options] [executable-file [core-file or process-id]]\n\
gdb [options] --args executable-file [inferior-arguments ...]\n\n\
"), stream);
- fputs_unfiltered (_("\
+ gdb_puts (_("\
Selection of debuggee and its files:\n\n\
- --args Arguments after executable-file are passed to inferior\n\
+ --args Arguments after executable-file are passed to inferior.\n\
--core=COREFILE Analyze the core dump COREFILE.\n\
--exec=EXECFILE Use EXECFILE as the executable.\n\
--pid=PID Attach to running process PID.\n\
--readnever Do not read symbol files.\n\
--write Set writing into executable and core files.\n\n\
"), stream);
- fputs_unfiltered (_("\
+ gdb_puts (_("\
Initial commands and command files:\n\n\
--command=FILE, -x Execute GDB commands from FILE.\n\
--init-command=FILE, -ix\n\
--nh Do not read ~/.gdbinit.\n\
--nx Do not read any .gdbinit files in any directory.\n\n\
"), stream);
- fputs_unfiltered (_("\
+ gdb_puts (_("\
Output and user interface control:\n\n\
--fullname Output information used by emacs-GDB interface.\n\
--interpreter=INTERP\n\
- Select a specific interpreter / user interface\n\
+ Select a specific interpreter / user interface.\n\
--tty=TTY Use TTY for input/output by the program being debugged.\n\
-w Use the GUI interface.\n\
--nw Do not use the GUI interface.\n\
"), stream);
#if defined(TUI)
- fputs_unfiltered (_("\
+ gdb_puts (_("\
--tui Use a terminal user interface.\n\
"), stream);
#endif
- fputs_unfiltered (_("\
- --dbx DBX compatibility mode.\n\
+ gdb_puts (_("\
-q, --quiet, --silent\n\
Do not print version number on startup.\n\n\
"), stream);
- fputs_unfiltered (_("\
+ gdb_puts (_("\
Operating modes:\n\n\
--batch Exit after processing options.\n\
--batch-silent Like --batch, but suppress all gdb stdout output.\n\
--data-directory=DIR, -D\n\
Set GDB's data-directory to DIR.\n\
"), stream);
- fputs_unfiltered (_("\n\
+ gdb_puts (_("\n\
+At startup, GDB reads the following early init files and executes their\n\
+commands:\n\
+"), stream);
+ if (!home_gdbearlyinit.empty ())
+ gdb_printf (stream, _("\
+ * user-specific early init file: %s\n\
+"), home_gdbearlyinit.c_str ());
+ if (home_gdbearlyinit.empty ())
+ gdb_printf (stream, _("\
+ None found.\n"));
+ gdb_puts (_("\n\
At startup, GDB reads the following init files and executes their commands:\n\
"), stream);
if (!system_gdbinit.empty ())
if (idx < system_gdbinit.size () - 1)
output += ", ";
}
- fprintf_unfiltered (stream, _("\
+ gdb_printf (stream, _("\
* system-wide init files: %s\n\
"), output.c_str ());
}
if (!home_gdbinit.empty ())
- fprintf_unfiltered (stream, _("\
+ gdb_printf (stream, _("\
* user-specific init file: %s\n\
"), home_gdbinit.c_str ());
if (!local_gdbinit.empty ())
- fprintf_unfiltered (stream, _("\
+ gdb_printf (stream, _("\
* local init file (see also 'set auto-load local-gdbinit'): ./%s\n\
"), local_gdbinit.c_str ());
- fputs_unfiltered (_("\n\
+ if (system_gdbinit.empty () && home_gdbinit.empty ()
+ && local_gdbinit.empty ())
+ gdb_printf (stream, _("\
+ None found.\n"));
+ gdb_puts (_("\n\
For more information, type \"help\" from within GDB, or consult the\n\
GDB manual (available as on-line info or a printed manual).\n\
"), stream);
if (REPORT_BUGS_TO[0] && stream == gdb_stdout)
- fprintf_unfiltered (stream, _("\n\
-Report bugs to %s.\n\
-"), REPORT_BUGS_TO);
+ gdb_printf (stream, _("\n\
+Report bugs to %ps.\n\
+"), styled_string (file_name_style.style (), REPORT_BUGS_TO));
if (stream == gdb_stdout)
- fprintf_unfiltered (stream, _("\n\
+ gdb_printf (stream, _("\n\
You can ask GDB-related questions on the GDB users mailing list\n\
(gdb@sourceware.org) or on GDB's IRC channel (#gdb on Freenode).\n"));
}
projects / binutils-gdb.git / blobdiff