/* General utility routines for GDB, the GNU debugger.
- Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
- 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
- Free Software Foundation, Inc.
+ Copyright (C) 1986-2015 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
-#include "gdb_assert.h"
+#include "dyn-string.h"
#include <ctype.h>
-#include "gdb_string.h"
+#include "gdb_wait.h"
#include "event-top.h"
-#include "exceptions.h"
+#include "gdbthread.h"
+#include "fnmatch.h"
+#include "gdb_bfd.h"
+#ifdef HAVE_SYS_RESOURCE_H
+#include <sys/resource.h>
+#endif /* HAVE_SYS_RESOURCE_H */
#ifdef TUI
#include "tui/tui.h" /* For tui_get_command_dimension. */
#include <pc.h>
#endif
-/* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */
-#ifdef reg
-#undef reg
-#endif
-
#include <signal.h>
+#include "timeval-utils.h"
#include "gdbcmd.h"
#include "serial.h"
#include "bfd.h"
#include "target.h"
-#include "demangle.h"
+#include "gdb-demangle.h"
#include "expression.h"
#include "language.h"
#include "charset.h"
#include "filenames.h"
#include "symfile.h"
#include "gdb_obstack.h"
+#include "gdbcore.h"
#include "top.h"
+#include "main.h"
+#include "solist.h"
#include "inferior.h" /* for signed_pointer_to_address */
-#include <sys/param.h> /* For MAXPATHLEN */
-
#include "gdb_curses.h"
#include "readline/readline.h"
+#include <sys/time.h>
+#include <time.h>
+
+#include "gdb_usleep.h"
+#include "interps.h"
+#include "gdb_regex.h"
+
#if !HAVE_DECL_MALLOC
-extern PTR malloc (); /* OK: PTR */
+extern PTR malloc (); /* ARI: PTR */
#endif
#if !HAVE_DECL_REALLOC
-extern PTR realloc (); /* OK: PTR */
+extern PTR realloc (); /* ARI: PTR */
#endif
#if !HAVE_DECL_FREE
extern void free ();
#endif
-/* readline defines this. */
-#undef savestring
-
void (*deprecated_error_begin_hook) (void);
/* Prototypes for local functions */
static void vfprintf_maybe_filtered (struct ui_file *, const char *,
- va_list, int) ATTR_FORMAT (printf, 2, 0);
+ va_list, int) ATTRIBUTE_PRINTF (2, 0);
static void fputs_maybe_filtered (const char *, struct ui_file *, int);
-static void do_my_cleanups (struct cleanup **, struct cleanup *);
-
static void prompt_for_continue (void);
static void set_screen_size (void);
static void set_width (void);
-/* Chain of cleanup actions established with make_cleanup,
- to be executed if an error happens. */
-
-static struct cleanup *cleanup_chain; /* cleaned up after a failed command */
-static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */
-static struct cleanup *run_cleanup_chain; /* cleaned up on each 'run' */
-static struct cleanup *exec_cleanup_chain; /* cleaned up on each execution command */
-/* cleaned up on each error from within an execution command */
-static struct cleanup *exec_error_cleanup_chain;
+/* Time spent in prompt_for_continue in the currently executing command
+ waiting for user to respond.
+ Initialized in make_command_stats_cleanup.
+ Modified in prompt_for_continue and defaulted_query.
+ Used in report_command_stats. */
-/* Pointer to what is left to do for an execution command after the
- target stops. Used only in asynchronous mode, by targets that
- support async execution. The finish and until commands use it. So
- does the target extended-remote command. */
-struct continuation *cmd_continuation;
-struct continuation *intermediate_continuation;
+static struct timeval prompt_for_continue_wait_time;
-/* Nonzero if we have job control. */
+/* A flag indicating whether to timestamp debugging messages. */
-int job_control;
+static int debug_timestamp = 0;
-/* Nonzero means a quit has been requested. */
+/* Nonzero if we have job control. */
-int quit_flag;
+int job_control;
/* Nonzero means quit immediately if Control-C is typed now, rather
than waiting until QUIT is executed. Be careful in setting this;
int immediate_quit;
-/* Nonzero means that encoded C++/ObjC names should be printed out in their
- C++/ObjC form rather than raw. */
-
-int demangle = 1;
-static void
-show_demangle (struct ui_file *file, int from_tty,
- struct cmd_list_element *c, const char *value)
-{
- fprintf_filtered (file, _("\
-Demangling of encoded C++/ObjC names when displaying symbols is %s.\n"),
- value);
-}
-
-/* Nonzero means that encoded C++/ObjC names should be printed out in their
- C++/ObjC form even in assembler language displays. If this is set, but
- DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */
-
-int asm_demangle = 0;
-static void
-show_asm_demangle (struct ui_file *file, int from_tty,
- struct cmd_list_element *c, const char *value)
-{
- fprintf_filtered (file, _("\
-Demangling of C++/ObjC names in disassembly listings is %s.\n"),
- value);
-}
-
/* Nonzero means that strings with character values >0x7F should be printed
as octal escapes. Zero means just print the value (e.g. it's an
international character, and the terminal or window can cope.) */
show_sevenbit_strings (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
- fprintf_filtered (file, _("\
-Printing of 8-bit characters in strings as \\nnn is %s.\n"),
+ fprintf_filtered (file, _("Printing of 8-bit characters "
+ "in strings as \\nnn is %s.\n"),
value);
}
-/* String to be printed before error messages, if any. */
-
-char *error_pre_print;
-
-/* String to be printed before quit messages, if any. */
-
-char *quit_pre_print;
-
/* String to be printed before warning messages, if any. */
char *warning_pre_print = "\nwarning: ";
}
\f
+/* Cleanup utilities.
-/* Add a new cleanup to the cleanup_chain,
- and return the previous chain pointer
- to be passed later to do_cleanups or discard_cleanups.
- Args are FUNCTION to clean up with, and ARG to pass to it. */
+ These are not defined in cleanups.c (nor declared in cleanups.h)
+ because while they use the "cleanup API" they are not part of the
+ "cleanup API". */
-struct cleanup *
-make_cleanup (make_cleanup_ftype *function, void *arg)
+static void
+do_freeargv (void *arg)
{
- return make_my_cleanup (&cleanup_chain, function, arg);
+ freeargv ((char **) arg);
}
struct cleanup *
-make_final_cleanup (make_cleanup_ftype *function, void *arg)
+make_cleanup_freeargv (char **arg)
{
- return make_my_cleanup (&final_cleanup_chain, function, arg);
+ return make_cleanup (do_freeargv, arg);
}
-struct cleanup *
-make_run_cleanup (make_cleanup_ftype *function, void *arg)
+static void
+do_dyn_string_delete (void *arg)
{
- return make_my_cleanup (&run_cleanup_chain, function, arg);
+ dyn_string_delete ((dyn_string_t) arg);
}
struct cleanup *
-make_exec_cleanup (make_cleanup_ftype *function, void *arg)
+make_cleanup_dyn_string_delete (dyn_string_t arg)
+{
+ return make_cleanup (do_dyn_string_delete, arg);
+}
+
+static void
+do_bfd_close_cleanup (void *arg)
{
- return make_my_cleanup (&exec_cleanup_chain, function, arg);
+ gdb_bfd_unref (arg);
}
struct cleanup *
-make_exec_error_cleanup (make_cleanup_ftype *function, void *arg)
+make_cleanup_bfd_unref (bfd *abfd)
{
- return make_my_cleanup (&exec_error_cleanup_chain, function, arg);
+ return make_cleanup (do_bfd_close_cleanup, abfd);
}
static void
-do_freeargv (void *arg)
+do_close_cleanup (void *arg)
{
- freeargv ((char **) arg);
+ int *fd = arg;
+
+ close (*fd);
}
struct cleanup *
-make_cleanup_freeargv (char **arg)
+make_cleanup_close (int fd)
{
- return make_my_cleanup (&cleanup_chain, do_freeargv, arg);
+ int *saved_fd = xmalloc (sizeof (fd));
+
+ *saved_fd = fd;
+ return make_cleanup_dtor (do_close_cleanup, saved_fd, xfree);
}
+/* Helper function which does the work for make_cleanup_fclose. */
+
static void
-do_bfd_close_cleanup (void *arg)
+do_fclose_cleanup (void *arg)
{
- bfd_close (arg);
+ FILE *file = arg;
+
+ fclose (file);
}
+/* Return a new cleanup that closes FILE. */
+
struct cleanup *
-make_cleanup_bfd_close (bfd *abfd)
+make_cleanup_fclose (FILE *file)
{
- return make_cleanup (do_bfd_close_cleanup, abfd);
+ return make_cleanup (do_fclose_cleanup, file);
}
+/* Helper function which does the work for make_cleanup_obstack_free. */
+
static void
-do_close_cleanup (void *arg)
+do_obstack_free (void *arg)
{
- int *fd = arg;
- close (*fd);
- xfree (fd);
+ struct obstack *ob = arg;
+
+ obstack_free (ob, NULL);
}
+/* Return a new cleanup that frees OBSTACK. */
+
struct cleanup *
-make_cleanup_close (int fd)
+make_cleanup_obstack_free (struct obstack *obstack)
{
- int *saved_fd = xmalloc (sizeof (fd));
- *saved_fd = fd;
- return make_cleanup (do_close_cleanup, saved_fd);
+ return make_cleanup (do_obstack_free, obstack);
}
static void
struct cleanup *
make_cleanup_ui_file_delete (struct ui_file *arg)
{
- return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg);
+ return make_cleanup (do_ui_file_delete, arg);
+}
+
+/* Helper function for make_cleanup_ui_out_redirect_pop. */
+
+static void
+do_ui_out_redirect_pop (void *arg)
+{
+ struct ui_out *uiout = arg;
+
+ if (ui_out_redirect (uiout, NULL) < 0)
+ warning (_("Cannot restore redirection of the current output protocol"));
+}
+
+/* Return a new cleanup that pops the last redirection by ui_out_redirect
+ with NULL parameter. */
+
+struct cleanup *
+make_cleanup_ui_out_redirect_pop (struct ui_out *uiout)
+{
+ return make_cleanup (do_ui_out_redirect_pop, uiout);
}
static void
struct cleanup *
make_cleanup_free_section_addr_info (struct section_addr_info *addrs)
{
- return make_my_cleanup (&cleanup_chain, do_free_section_addr_info, addrs);
+ return make_cleanup (do_free_section_addr_info, addrs);
+}
+
+struct restore_integer_closure
+{
+ int *variable;
+ int value;
+};
+
+static void
+restore_integer (void *p)
+{
+ struct restore_integer_closure *closure = p;
+
+ *(closure->variable) = closure->value;
}
+/* Remember the current value of *VARIABLE and make it restored when
+ the cleanup is run. */
struct cleanup *
-make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function,
- void *arg)
+make_cleanup_restore_integer (int *variable)
{
- struct cleanup *new
- = (struct cleanup *) xmalloc (sizeof (struct cleanup));
- struct cleanup *old_chain = *pmy_chain;
+ struct restore_integer_closure *c =
+ xmalloc (sizeof (struct restore_integer_closure));
- new->next = *pmy_chain;
- new->function = function;
- new->arg = arg;
- *pmy_chain = new;
+ c->variable = variable;
+ c->value = *variable;
- return old_chain;
+ return make_cleanup_dtor (restore_integer, (void *) c, xfree);
}
-/* Discard cleanups and do the actions they describe
- until we get back to the point OLD_CHAIN in the cleanup_chain. */
+/* Remember the current value of *VARIABLE and make it restored when
+ the cleanup is run. */
-void
-do_cleanups (struct cleanup *old_chain)
+struct cleanup *
+make_cleanup_restore_uinteger (unsigned int *variable)
{
- do_my_cleanups (&cleanup_chain, old_chain);
+ return make_cleanup_restore_integer ((int *) variable);
}
-void
-do_final_cleanups (struct cleanup *old_chain)
+/* Helper for make_cleanup_unpush_target. */
+
+static void
+do_unpush_target (void *arg)
{
- do_my_cleanups (&final_cleanup_chain, old_chain);
+ struct target_ops *ops = arg;
+
+ unpush_target (ops);
}
-void
-do_run_cleanups (struct cleanup *old_chain)
+/* Return a new cleanup that unpushes OPS. */
+
+struct cleanup *
+make_cleanup_unpush_target (struct target_ops *ops)
{
- do_my_cleanups (&run_cleanup_chain, old_chain);
+ return make_cleanup (do_unpush_target, ops);
}
-void
-do_exec_cleanups (struct cleanup *old_chain)
+/* Helper for make_cleanup_htab_delete compile time checking the types. */
+
+static void
+do_htab_delete_cleanup (void *htab_voidp)
{
- do_my_cleanups (&exec_cleanup_chain, old_chain);
+ htab_t htab = htab_voidp;
+
+ htab_delete (htab);
}
-void
-do_exec_error_cleanups (struct cleanup *old_chain)
+/* Return a new cleanup that deletes HTAB. */
+
+struct cleanup *
+make_cleanup_htab_delete (htab_t htab)
{
- do_my_cleanups (&exec_error_cleanup_chain, old_chain);
+ return make_cleanup (do_htab_delete_cleanup, htab);
}
+struct restore_ui_file_closure
+{
+ struct ui_file **variable;
+ struct ui_file *value;
+};
+
static void
-do_my_cleanups (struct cleanup **pmy_chain,
- struct cleanup *old_chain)
+do_restore_ui_file (void *p)
{
- struct cleanup *ptr;
- while ((ptr = *pmy_chain) != old_chain)
- {
- *pmy_chain = ptr->next; /* Do this first incase recursion */
- (*ptr->function) (ptr->arg);
- xfree (ptr);
- }
+ struct restore_ui_file_closure *closure = p;
+
+ *(closure->variable) = closure->value;
}
-/* Discard cleanups, not doing the actions they describe,
- until we get back to the point OLD_CHAIN in the cleanup_chain. */
+/* Remember the current value of *VARIABLE and make it restored when
+ the cleanup is run. */
-void
-discard_cleanups (struct cleanup *old_chain)
+struct cleanup *
+make_cleanup_restore_ui_file (struct ui_file **variable)
{
- discard_my_cleanups (&cleanup_chain, old_chain);
+ struct restore_ui_file_closure *c = XNEW (struct restore_ui_file_closure);
+
+ c->variable = variable;
+ c->value = *variable;
+
+ return make_cleanup_dtor (do_restore_ui_file, (void *) c, xfree);
}
-void
-discard_final_cleanups (struct cleanup *old_chain)
+/* Helper for make_cleanup_value_free_to_mark. */
+
+static void
+do_value_free_to_mark (void *value)
{
- discard_my_cleanups (&final_cleanup_chain, old_chain);
+ value_free_to_mark ((struct value *) value);
}
-void
-discard_exec_error_cleanups (struct cleanup *old_chain)
+/* Free all values allocated since MARK was obtained by value_mark
+ (except for those released) when the cleanup is run. */
+
+struct cleanup *
+make_cleanup_value_free_to_mark (struct value *mark)
{
- discard_my_cleanups (&exec_error_cleanup_chain, old_chain);
+ return make_cleanup (do_value_free_to_mark, mark);
}
-void
-discard_my_cleanups (struct cleanup **pmy_chain,
- struct cleanup *old_chain)
+/* Helper for make_cleanup_value_free. */
+
+static void
+do_value_free (void *value)
{
- struct cleanup *ptr;
- while ((ptr = *pmy_chain) != old_chain)
- {
- *pmy_chain = ptr->next;
- xfree (ptr);
- }
+ value_free (value);
}
-/* Set the cleanup_chain to 0, and return the old cleanup chain. */
+/* Free VALUE. */
+
struct cleanup *
-save_cleanups (void)
+make_cleanup_value_free (struct value *value)
{
- return save_my_cleanups (&cleanup_chain);
+ return make_cleanup (do_value_free, value);
}
-struct cleanup *
-save_final_cleanups (void)
+/* Helper for make_cleanup_free_so. */
+
+static void
+do_free_so (void *arg)
{
- return save_my_cleanups (&final_cleanup_chain);
+ struct so_list *so = arg;
+
+ free_so (so);
}
+/* Make cleanup handler calling free_so for SO. */
+
struct cleanup *
-save_my_cleanups (struct cleanup **pmy_chain)
+make_cleanup_free_so (struct so_list *so)
+{
+ return make_cleanup (do_free_so, so);
+}
+
+/* Helper for make_cleanup_restore_current_language. */
+
+static void
+do_restore_current_language (void *p)
{
- struct cleanup *old_chain = *pmy_chain;
+ enum language saved_lang = (uintptr_t) p;
- *pmy_chain = 0;
- return old_chain;
+ set_language (saved_lang);
}
-/* Restore the cleanup chain from a previously saved chain. */
-void
-restore_cleanups (struct cleanup *chain)
+/* Remember the current value of CURRENT_LANGUAGE and make it restored when
+ the cleanup is run. */
+
+struct cleanup *
+make_cleanup_restore_current_language (void)
{
- restore_my_cleanups (&cleanup_chain, chain);
+ enum language saved_lang = current_language->la_language;
+
+ return make_cleanup (do_restore_current_language,
+ (void *) (uintptr_t) saved_lang);
}
-void
-restore_final_cleanups (struct cleanup *chain)
+/* Helper function for make_cleanup_clear_parser_state. */
+
+static void
+do_clear_parser_state (void *ptr)
{
- restore_my_cleanups (&final_cleanup_chain, chain);
+ struct parser_state **p = (struct parser_state **) ptr;
+
+ *p = NULL;
}
-void
-restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain)
+/* Clean (i.e., set to NULL) the parser state variable P. */
+
+struct cleanup *
+make_cleanup_clear_parser_state (struct parser_state **p)
{
- *pmy_chain = chain;
+ return make_cleanup (do_clear_parser_state, (void *) p);
}
/* This function is useful for cleanups.
free_current_contents (void *ptr)
{
void **location = ptr;
+
if (location == NULL)
internal_error (__FILE__, __LINE__,
_("free_current_contents: NULL pointer"));
*location = NULL;
}
}
-
-/* Provide a known function that does nothing, to use as a base for
- for a possibly long chain of cleanups. This is useful where we
- use the cleanup chain for handling normal cleanups as well as dealing
- with cleanups that need to be done as a result of a call to error().
- In such cases, we may not be certain where the first cleanup is, unless
- we have a do-nothing one to always use as the base. */
-
-void
-null_cleanup (void *arg)
-{
-}
-
-/* Add a continuation to the continuation list, the global list
- cmd_continuation. The new continuation will be added at the front.*/
-void
-add_continuation (void (*continuation_hook) (struct continuation_arg *),
- struct continuation_arg *arg_list)
-{
- struct continuation *continuation_ptr;
-
- continuation_ptr =
- (struct continuation *) xmalloc (sizeof (struct continuation));
- continuation_ptr->continuation_hook = continuation_hook;
- continuation_ptr->arg_list = arg_list;
- continuation_ptr->next = cmd_continuation;
- cmd_continuation = continuation_ptr;
-}
-
-/* Walk down the cmd_continuation list, and execute all the
- continuations. There is a problem though. In some cases new
- continuations may be added while we are in the middle of this
- loop. If this happens they will be added in the front, and done
- before we have a chance of exhausting those that were already
- there. We need to then save the beginning of the list in a pointer
- and do the continuations from there on, instead of using the
- global beginning of list as our iteration pointer. */
-void
-do_all_continuations (void)
-{
- struct continuation *continuation_ptr;
- struct continuation *saved_continuation;
-
- /* Copy the list header into another pointer, and set the global
- list header to null, so that the global list can change as a side
- effect of invoking the continuations and the processing of
- the preexisting continuations will not be affected. */
- continuation_ptr = cmd_continuation;
- cmd_continuation = NULL;
-
- /* Work now on the list we have set aside. */
- while (continuation_ptr)
- {
- (continuation_ptr->continuation_hook) (continuation_ptr->arg_list);
- saved_continuation = continuation_ptr;
- continuation_ptr = continuation_ptr->next;
- xfree (saved_continuation);
- }
-}
-
-/* Walk down the cmd_continuation list, and get rid of all the
- continuations. */
-void
-discard_all_continuations (void)
-{
- struct continuation *continuation_ptr;
-
- while (cmd_continuation)
- {
- continuation_ptr = cmd_continuation;
- cmd_continuation = continuation_ptr->next;
- xfree (continuation_ptr);
- }
-}
-
-/* Add a continuation to the continuation list, the global list
- intermediate_continuation. The new continuation will be added at
- the front. */
-void
-add_intermediate_continuation (void (*continuation_hook)
- (struct continuation_arg *),
- struct continuation_arg *arg_list)
-{
- struct continuation *continuation_ptr;
-
- continuation_ptr =
- (struct continuation *) xmalloc (sizeof (struct continuation));
- continuation_ptr->continuation_hook = continuation_hook;
- continuation_ptr->arg_list = arg_list;
- continuation_ptr->next = intermediate_continuation;
- intermediate_continuation = continuation_ptr;
-}
-
-/* Walk down the cmd_continuation list, and execute all the
- continuations. There is a problem though. In some cases new
- continuations may be added while we are in the middle of this
- loop. If this happens they will be added in the front, and done
- before we have a chance of exhausting those that were already
- there. We need to then save the beginning of the list in a pointer
- and do the continuations from there on, instead of using the
- global beginning of list as our iteration pointer.*/
-void
-do_all_intermediate_continuations (void)
-{
- struct continuation *continuation_ptr;
- struct continuation *saved_continuation;
-
- /* Copy the list header into another pointer, and set the global
- list header to null, so that the global list can change as a side
- effect of invoking the continuations and the processing of
- the preexisting continuations will not be affected. */
- continuation_ptr = intermediate_continuation;
- intermediate_continuation = NULL;
-
- /* Work now on the list we have set aside. */
- while (continuation_ptr)
- {
- (continuation_ptr->continuation_hook) (continuation_ptr->arg_list);
- saved_continuation = continuation_ptr;
- continuation_ptr = continuation_ptr->next;
- xfree (saved_continuation);
- }
-}
-
-/* Walk down the cmd_continuation list, and get rid of all the
- continuations. */
-void
-discard_all_intermediate_continuations (void)
-{
- struct continuation *continuation_ptr;
-
- while (intermediate_continuation)
- {
- continuation_ptr = intermediate_continuation;
- intermediate_continuation = continuation_ptr->next;
- xfree (continuation_ptr);
- }
-}
\f
(*deprecated_warning_hook) (string, args);
else
{
- target_terminal_ours ();
- wrap_here (""); /* Force out any buffered output */
+ if (target_supports_terminal_ours ())
+ target_terminal_ours ();
+ if (filtered_printing_initialized ())
+ wrap_here (""); /* Force out any buffered output. */
gdb_flush (gdb_stdout);
if (warning_pre_print)
fputs_unfiltered (warning_pre_print, gdb_stderr);
vfprintf_unfiltered (gdb_stderr, string, args);
fprintf_unfiltered (gdb_stderr, "\n");
- va_end (args);
}
}
-/* Print a warning message.
- The first argument STRING is the warning message, used as a fprintf string,
- and the remaining args are passed as arguments to it.
- The primary difference between warnings and errors is that a warning
- does not force the return to command level. */
-
-void
-warning (const char *string, ...)
-{
- va_list args;
- va_start (args, string);
- vwarning (string, args);
- va_end (args);
-}
-
/* Print an error message and return to command level.
The first argument STRING is the error message, used as a fprintf string,
and the remaining args are passed as arguments to it. */
-NORETURN void
+void
verror (const char *string, va_list args)
{
throw_verror (GENERIC_ERROR, string, args);
}
-NORETURN void
-error (const char *string, ...)
+void
+error_stream (struct ui_file *stream)
{
- va_list args;
- va_start (args, string);
- throw_verror (GENERIC_ERROR, string, args);
- va_end (args);
+ char *message = ui_file_xstrdup (stream, NULL);
+
+ make_cleanup (xfree, message);
+ error (("%s"), message);
}
-/* Print an error message and quit.
- The first argument STRING is the error message, used as a fprintf string,
- and the remaining args are passed as arguments to it. */
+/* Emit a message and abort. */
-NORETURN void
-vfatal (const char *string, va_list args)
+static void ATTRIBUTE_NORETURN
+abort_with_message (const char *msg)
{
- throw_vfatal (string, args);
+ if (gdb_stderr == NULL)
+ fputs (msg, stderr);
+ else
+ fputs_unfiltered (msg, gdb_stderr);
+
+ abort (); /* NOTE: GDB has only three calls to abort(). */
}
-NORETURN void
-fatal (const char *string, ...)
+/* Dump core trying to increase the core soft limit to hard limit first. */
+
+void
+dump_core (void)
{
- va_list args;
- va_start (args, string);
- throw_vfatal (string, args);
- va_end (args);
+#ifdef HAVE_SETRLIMIT
+ struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY };
+
+ setrlimit (RLIMIT_CORE, &rlim);
+#endif /* HAVE_SETRLIMIT */
+
+ abort (); /* NOTE: GDB has only three calls to abort(). */
}
-NORETURN void
-error_stream (struct ui_file *stream)
+/* Check whether GDB will be able to dump core using the dump_core
+ function. Returns zero if GDB cannot or should not dump core.
+ If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected.
+ If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */
+
+int
+can_dump_core (enum resource_limit_kind limit_kind)
{
- long len;
- char *message = ui_file_xstrdup (stream, &len);
- make_cleanup (xfree, message);
- error (("%s"), message);
+#ifdef HAVE_GETRLIMIT
+ struct rlimit rlim;
+
+ /* Be quiet and assume we can dump if an error is returned. */
+ if (getrlimit (RLIMIT_CORE, &rlim) != 0)
+ return 1;
+
+ switch (limit_kind)
+ {
+ case LIMIT_CUR:
+ if (rlim.rlim_cur == 0)
+ return 0;
+
+ case LIMIT_MAX:
+ if (rlim.rlim_max == 0)
+ return 0;
+ }
+#endif /* HAVE_GETRLIMIT */
+
+ return 1;
+}
+
+/* Print a warning that we cannot dump core. */
+
+void
+warn_cant_dump_core (const char *reason)
+{
+ fprintf_unfiltered (gdb_stderr,
+ _("%s\nUnable to dump core, use `ulimit -c"
+ " unlimited' before executing GDB next time.\n"),
+ reason);
}
-/* Print a message reporting an internal error/warning. Ask the user
+/* Check whether GDB will be able to dump core using the dump_core
+ function, and print a warning if we cannot. */
+
+static int
+can_dump_core_warn (enum resource_limit_kind limit_kind,
+ const char *reason)
+{
+ int core_dump_allowed = can_dump_core (limit_kind);
+
+ if (!core_dump_allowed)
+ warn_cant_dump_core (reason);
+
+ return core_dump_allowed;
+}
+
+/* Allow the user to configure the debugger behavior with respect to
+ what to do when an internal problem is detected. */
+
+const char internal_problem_ask[] = "ask";
+const char internal_problem_yes[] = "yes";
+const char internal_problem_no[] = "no";
+static const char *const internal_problem_modes[] =
+{
+ internal_problem_ask,
+ internal_problem_yes,
+ internal_problem_no,
+ NULL
+};
+
+/* Print a message reporting an internal error/warning. Ask the user
if they want to continue, dump core, or just exit. Return
something to indicate a quit. */
struct internal_problem
{
const char *name;
- /* FIXME: cagney/2002-08-15: There should be ``maint set/show''
- commands available for controlling these variables. */
- enum auto_boolean should_quit;
- enum auto_boolean should_dump_core;
+ int user_settable_should_quit;
+ const char *should_quit;
+ int user_settable_should_dump_core;
+ const char *should_dump_core;
};
/* Report a problem, internal to GDB, to the user. Once the problem
has been reported, and assuming GDB didn't quit, the caller can
either allow execution to resume or throw an error. */
-static void ATTR_FORMAT (printf, 4, 0)
+static void ATTRIBUTE_PRINTF (4, 0)
internal_vproblem (struct internal_problem *problem,
const char *file, int line, const char *fmt, va_list ap)
{
int quit_p;
int dump_core_p;
char *reason;
+ struct cleanup *cleanup = make_cleanup (null_cleanup, NULL);
/* Don't allow infinite error/warning recursion. */
{
static char msg[] = "Recursive internal problem.\n";
+
switch (dejavu)
{
case 0:
break;
case 1:
dejavu = 2;
- fputs_unfiltered (msg, gdb_stderr);
- abort (); /* NOTE: GDB has only three calls to abort(). */
+ abort_with_message (msg);
default:
dejavu = 3;
- write (STDERR_FILENO, msg, sizeof (msg));
+ /* Newer GLIBC versions put the warn_unused_result attribute
+ on write, but this is one of those rare cases where
+ ignoring the return value is correct. Casting to (void)
+ does not fix this problem. This is the solution suggested
+ at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */
+ if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg))
+ abort (); /* NOTE: GDB has only three calls to abort(). */
exit (1);
}
}
- /* Try to get the message out and at the start of a new line. */
- target_terminal_ours ();
- begin_line ();
-
/* Create a string containing the full error/warning message. Need
to call query with this full string, as otherwize the reason
(error/warning) and question become separated. Format using a
so that the user knows that they are living on the edge. */
{
char *msg;
+
msg = xstrvprintf (fmt, ap);
- reason = xstrprintf ("\
-%s:%d: %s: %s\n\
-A problem internal to GDB has been detected,\n\
-further debugging may prove unreliable.", file, line, problem->name, msg);
+ reason = xstrprintf ("%s:%d: %s: %s\n"
+ "A problem internal to GDB has been detected,\n"
+ "further debugging may prove unreliable.",
+ file, line, problem->name, msg);
xfree (msg);
make_cleanup (xfree, reason);
}
- switch (problem->should_quit)
+ /* Fall back to abort_with_message if gdb_stderr is not set up. */
+ if (gdb_stderr == NULL)
{
- case AUTO_BOOLEAN_AUTO:
- /* Default (yes/batch case) is to quit GDB. When in batch mode
- this lessens the likelhood of GDB going into an infinate
- loop. */
- quit_p = query (_("%s\nQuit this debugging session? "), reason);
- break;
- case AUTO_BOOLEAN_TRUE:
- quit_p = 1;
- break;
- case AUTO_BOOLEAN_FALSE:
- quit_p = 0;
- break;
- default:
- internal_error (__FILE__, __LINE__, _("bad switch"));
+ fputs (reason, stderr);
+ abort_with_message ("\n");
}
- switch (problem->should_dump_core)
+ /* Try to get the message out and at the start of a new line. */
+ if (target_supports_terminal_ours ())
+ target_terminal_ours ();
+ if (filtered_printing_initialized ())
+ begin_line ();
+
+ /* Emit the message unless query will emit it below. */
+ if (problem->should_quit != internal_problem_ask
+ || !confirm
+ || !filtered_printing_initialized ())
+ fprintf_unfiltered (gdb_stderr, "%s\n", reason);
+
+ if (problem->should_quit == internal_problem_ask)
{
- case AUTO_BOOLEAN_AUTO:
- /* Default (yes/batch case) is to dump core. This leaves a GDB
- `dropping' so that it is easier to see that something went
- wrong in GDB. */
- dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason);
- break;
- break;
- case AUTO_BOOLEAN_TRUE:
- dump_core_p = 1;
- break;
- case AUTO_BOOLEAN_FALSE:
- dump_core_p = 0;
- break;
- default:
- internal_error (__FILE__, __LINE__, _("bad switch"));
+ /* Default (yes/batch case) is to quit GDB. When in batch mode
+ this lessens the likelihood of GDB going into an infinite
+ loop. */
+ if (!confirm || !filtered_printing_initialized ())
+ quit_p = 1;
+ else
+ quit_p = query (_("%s\nQuit this debugging session? "), reason);
}
+ else if (problem->should_quit == internal_problem_yes)
+ quit_p = 1;
+ else if (problem->should_quit == internal_problem_no)
+ quit_p = 0;
+ else
+ internal_error (__FILE__, __LINE__, _("bad switch"));
- if (quit_p)
+ fputs_unfiltered (_("\nThis is a bug, please report it."), gdb_stderr);
+ if (REPORT_BUGS_TO[0])
+ fprintf_unfiltered (gdb_stderr, _(" For instructions, see:\n%s."),
+ REPORT_BUGS_TO);
+ fputs_unfiltered ("\n\n", gdb_stderr);
+
+ if (problem->should_dump_core == internal_problem_ask)
+ {
+ if (!can_dump_core_warn (LIMIT_MAX, reason))
+ dump_core_p = 0;
+ else if (!filtered_printing_initialized ())
+ dump_core_p = 1;
+ else
+ {
+ /* Default (yes/batch case) is to dump core. This leaves a GDB
+ `dropping' so that it is easier to see that something went
+ wrong in GDB. */
+ dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason);
+ }
+ }
+ else if (problem->should_dump_core == internal_problem_yes)
+ dump_core_p = can_dump_core_warn (LIMIT_MAX, reason);
+ else if (problem->should_dump_core == internal_problem_no)
+ dump_core_p = 0;
+ else
+ internal_error (__FILE__, __LINE__, _("bad switch"));
+
+ if (quit_p)
{
if (dump_core_p)
- abort (); /* NOTE: GDB has only three calls to abort(). */
+ dump_core ();
else
exit (1);
}
{
#ifdef HAVE_WORKING_FORK
if (fork () == 0)
- abort (); /* NOTE: GDB has only three calls to abort(). */
+ dump_core ();
#endif
}
}
dejavu = 0;
+ do_cleanups (cleanup);
}
static struct internal_problem internal_error_problem = {
- "internal-error", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO
+ "internal-error", 1, internal_problem_ask, 1, internal_problem_ask
};
-NORETURN void
+void
internal_verror (const char *file, int line, const char *fmt, va_list ap)
{
internal_vproblem (&internal_error_problem, file, line, fmt, ap);
- deprecated_throw_reason (RETURN_ERROR);
-}
-
-NORETURN void
-internal_error (const char *file, int line, const char *string, ...)
-{
- va_list ap;
- va_start (ap, string);
- internal_verror (file, line, string, ap);
- va_end (ap);
+ throw_quit (_("Command aborted."));
}
static struct internal_problem internal_warning_problem = {
- "internal-warning", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO
+ "internal-warning", 1, internal_problem_ask, 1, internal_problem_ask
};
void
internal_vproblem (&internal_warning_problem, file, line, fmt, ap);
}
+static struct internal_problem demangler_warning_problem = {
+ "demangler-warning", 1, internal_problem_ask, 0, internal_problem_no
+};
+
+void
+demangler_vwarning (const char *file, int line, const char *fmt, va_list ap)
+{
+ internal_vproblem (&demangler_warning_problem, file, line, fmt, ap);
+}
+
void
-internal_warning (const char *file, int line, const char *string, ...)
+demangler_warning (const char *file, int line, const char *string, ...)
{
va_list ap;
+
va_start (ap, string);
- internal_vwarning (file, line, string, ap);
+ demangler_vwarning (file, line, string, ap);
va_end (ap);
}
-/* Print the system error message for errno, and also mention STRING
- as the file name for which the error was encountered.
- Then return to command level. */
+/* Dummy functions to keep add_prefix_cmd happy. */
-NORETURN void
-perror_with_name (const char *string)
+static void
+set_internal_problem_cmd (char *args, int from_tty)
+{
+}
+
+static void
+show_internal_problem_cmd (char *args, int from_tty)
+{
+}
+
+/* When GDB reports an internal problem (error or warning) it gives
+ the user the opportunity to quit GDB and/or create a core file of
+ the current debug session. This function registers a few commands
+ that make it possible to specify that GDB should always or never
+ quit or create a core file, without asking. The commands look
+ like:
+
+ maint set PROBLEM-NAME quit ask|yes|no
+ maint show PROBLEM-NAME quit
+ maint set PROBLEM-NAME corefile ask|yes|no
+ maint show PROBLEM-NAME corefile
+
+ Where PROBLEM-NAME is currently "internal-error" or
+ "internal-warning". */
+
+static void
+add_internal_problem_command (struct internal_problem *problem)
+{
+ struct cmd_list_element **set_cmd_list;
+ struct cmd_list_element **show_cmd_list;
+ char *set_doc;
+ char *show_doc;
+
+ set_cmd_list = xmalloc (sizeof (*set_cmd_list));
+ show_cmd_list = xmalloc (sizeof (*set_cmd_list));
+ *set_cmd_list = NULL;
+ *show_cmd_list = NULL;
+
+ set_doc = xstrprintf (_("Configure what GDB does when %s is detected."),
+ problem->name);
+
+ show_doc = xstrprintf (_("Show what GDB does when %s is detected."),
+ problem->name);
+
+ add_prefix_cmd ((char*) problem->name,
+ class_maintenance, set_internal_problem_cmd, set_doc,
+ set_cmd_list,
+ concat ("maintenance set ", problem->name, " ",
+ (char *) NULL),
+ 0/*allow-unknown*/, &maintenance_set_cmdlist);
+
+ add_prefix_cmd ((char*) problem->name,
+ class_maintenance, show_internal_problem_cmd, show_doc,
+ show_cmd_list,
+ concat ("maintenance show ", problem->name, " ",
+ (char *) NULL),
+ 0/*allow-unknown*/, &maintenance_show_cmdlist);
+
+ if (problem->user_settable_should_quit)
+ {
+ set_doc = xstrprintf (_("Set whether GDB should quit "
+ "when an %s is detected"),
+ problem->name);
+ show_doc = xstrprintf (_("Show whether GDB will quit "
+ "when an %s is detected"),
+ problem->name);
+ add_setshow_enum_cmd ("quit", class_maintenance,
+ internal_problem_modes,
+ &problem->should_quit,
+ set_doc,
+ show_doc,
+ NULL, /* help_doc */
+ NULL, /* setfunc */
+ NULL, /* showfunc */
+ set_cmd_list,
+ show_cmd_list);
+
+ xfree (set_doc);
+ xfree (show_doc);
+ }
+
+ if (problem->user_settable_should_dump_core)
+ {
+ set_doc = xstrprintf (_("Set whether GDB should create a core "
+ "file of GDB when %s is detected"),
+ problem->name);
+ show_doc = xstrprintf (_("Show whether GDB will create a core "
+ "file of GDB when %s is detected"),
+ problem->name);
+ add_setshow_enum_cmd ("corefile", class_maintenance,
+ internal_problem_modes,
+ &problem->should_dump_core,
+ set_doc,
+ show_doc,
+ NULL, /* help_doc */
+ NULL, /* setfunc */
+ NULL, /* showfunc */
+ set_cmd_list,
+ show_cmd_list);
+
+ xfree (set_doc);
+ xfree (show_doc);
+ }
+}
+
+/* Return a newly allocated string, containing the PREFIX followed
+ by the system error message for errno (separated by a colon).
+
+ The result must be deallocated after use. */
+
+static char *
+perror_string (const char *prefix)
{
char *err;
char *combined;
err = safe_strerror (errno);
- combined = (char *) alloca (strlen (err) + strlen (string) + 3);
- strcpy (combined, string);
+ combined = (char *) xmalloc (strlen (err) + strlen (prefix) + 3);
+ strcpy (combined, prefix);
strcat (combined, ": ");
strcat (combined, err);
+ return combined;
+}
+
+/* Print the system error message for errno, and also mention STRING
+ as the file name for which the error was encountered. Use ERRCODE
+ for the thrown exception. Then return to command level. */
+
+void
+throw_perror_with_name (enum errors errcode, const char *string)
+{
+ char *combined;
+
+ combined = perror_string (string);
+ make_cleanup (xfree, combined);
+
/* I understand setting these is a matter of taste. Still, some people
may clear errno but not know about bfd_error. Doing this here is not
- unreasonable. */
+ unreasonable. */
bfd_set_error (bfd_error_no_error);
errno = 0;
- error (_("%s."), combined);
+ throw_error (errcode, _("%s."), combined);
+}
+
+/* See throw_perror_with_name, ERRCODE defaults here to GENERIC_ERROR. */
+
+void
+perror_with_name (const char *string)
+{
+ throw_perror_with_name (GENERIC_ERROR, string);
+}
+
+/* Same as perror_with_name except that it prints a warning instead
+ of throwing an error. */
+
+void
+perror_warning_with_name (const char *string)
+{
+ char *combined;
+
+ combined = perror_string (string);
+ warning (_("%s"), combined);
+ xfree (combined);
}
/* Print the system error message for ERRCODE, and also mention STRING
void
quit (void)
{
+ if (sync_quit_force_run)
+ {
+ sync_quit_force_run = 0;
+ quit_force (NULL, stdin == instream);
+ }
+
#ifdef __MSDOS__
/* No steenking SIGINT will ever be coming our way when the
program is resumed. Don't lie. */
- fatal ("Quit");
+ throw_quit ("Quit");
#else
if (job_control
/* If there is no terminal switching for this target, then we can't
possibly get screwed by the lack of job control. */
- || current_target.to_terminal_ours == NULL)
- fatal ("Quit");
+ || !target_supports_terminal_ours ())
+ throw_quit ("Quit");
else
- fatal ("Quit (expect signal SIGINT when the program is resumed)");
+ throw_quit ("Quit (expect signal SIGINT when the program is resumed)");
#endif
}
\f
/* Called when a memory allocation fails, with the number of bytes of
- memory requested in SIZE. */
+ memory requested in SIZE. */
-NORETURN void
-nomem (long size)
+void
+malloc_failure (long size)
{
if (size > 0)
{
}
}
-/* The xmalloc() (libiberty.h) family of memory management routines.
-
- These are like the ISO-C malloc() family except that they implement
- consistent semantics and guard against typical memory management
- problems. */
-
-/* NOTE: These are declared using PTR to ensure consistency with
- "libiberty.h". xfree() is GDB local. */
-
-PTR /* OK: PTR */
-xmalloc (size_t size)
-{
- void *val;
-
- /* See libiberty/xmalloc.c. This function need's to match that's
- semantics. It never returns NULL. */
- if (size == 0)
- size = 1;
-
- val = malloc (size); /* OK: malloc */
- if (val == NULL)
- nomem (size);
-
- return (val);
-}
-
-void *
-xzalloc (size_t size)
-{
- return xcalloc (1, size);
-}
-
-PTR /* OK: PTR */
-xrealloc (PTR ptr, size_t size) /* OK: PTR */
-{
- void *val;
-
- /* See libiberty/xmalloc.c. This function need's to match that's
- semantics. It never returns NULL. */
- if (size == 0)
- size = 1;
-
- if (ptr != NULL)
- val = realloc (ptr, size); /* OK: realloc */
- else
- val = malloc (size); /* OK: malloc */
- if (val == NULL)
- nomem (size);
-
- return (val);
-}
+/* My replacement for the read system call.
+ Used like `read' but keeps going if `read' returns too soon. */
-PTR /* OK: PTR */
-xcalloc (size_t number, size_t size)
+int
+myread (int desc, char *addr, int len)
{
- void *mem;
+ int val;
+ int orglen = len;
- /* See libiberty/xmalloc.c. This function need's to match that's
- semantics. It never returns NULL. */
- if (number == 0 || size == 0)
+ while (len > 0)
{
- number = 1;
- size = 1;
+ val = read (desc, addr, len);
+ if (val < 0)
+ return val;
+ if (val == 0)
+ return orglen - len;
+ len -= val;
+ addr += val;
}
-
- mem = calloc (number, size); /* OK: xcalloc */
- if (mem == NULL)
- nomem (number * size);
-
- return mem;
+ return orglen;
}
void
-xfree (void *ptr)
+print_spaces (int n, struct ui_file *file)
{
- if (ptr != NULL)
- free (ptr); /* OK: free */
+ fputs_unfiltered (n_spaces (n), file);
}
-\f
-
-/* Like asprintf/vasprintf but get an internal_error if the call
- fails. */
-char *
-xstrprintf (const char *format, ...)
-{
- char *ret;
- va_list args;
- va_start (args, format);
- ret = xstrvprintf (format, args);
- va_end (args);
- return ret;
-}
+/* Print a host address. */
void
-xasprintf (char **ret, const char *format, ...)
+gdb_print_host_address (const void *addr, struct ui_file *stream)
{
- va_list args;
- va_start (args, format);
- (*ret) = xstrvprintf (format, args);
- va_end (args);
+ fprintf_filtered (stream, "%s", host_address_to_string (addr));
}
-void
-xvasprintf (char **ret, const char *format, va_list ap)
-{
- (*ret) = xstrvprintf (format, ap);
-}
+/* See utils.h. */
char *
-xstrvprintf (const char *format, va_list ap)
-{
- char *ret = NULL;
- int status = vasprintf (&ret, format, ap);
- /* NULL is returned when there was a memory allocation problem, or
- any other error (for instance, a bad format string). A negative
- status (the printed length) with a non-NULL buffer should never
- happen, but just to be sure. */
- if (ret == NULL || status < 0)
- internal_error (__FILE__, __LINE__, _("vasprintf call failed"));
- return ret;
+make_hex_string (const gdb_byte *data, size_t length)
+{
+ char *result = xmalloc (length * 2 + 1);
+ char *p;
+ size_t i;
+
+ p = result;
+ for (i = 0; i < length; ++i)
+ p += xsnprintf (p, 3, "%02x", data[i]);
+ *p = '\0';
+ return result;
}
-int
-xsnprintf (char *str, size_t size, const char *format, ...)
-{
- va_list args;
- int ret;
+\f
- va_start (args, format);
- ret = vsnprintf (str, size, format, args);
- gdb_assert (ret < size);
- va_end (args);
+/* A cleanup function that calls regfree. */
- return ret;
+static void
+do_regfree_cleanup (void *r)
+{
+ regfree (r);
}
-/* My replacement for the read system call.
- Used like `read' but keeps going if `read' returns too soon. */
+/* Create a new cleanup that frees the compiled regular expression R. */
-int
-myread (int desc, char *addr, int len)
+struct cleanup *
+make_regfree_cleanup (regex_t *r)
{
- int val;
- int orglen = len;
-
- while (len > 0)
- {
- val = read (desc, addr, len);
- if (val < 0)
- return val;
- if (val == 0)
- return orglen - len;
- len -= val;
- addr += val;
- }
- return orglen;
+ return make_cleanup (do_regfree_cleanup, r);
}
-\f
-/* Make a copy of the string at PTR with SIZE characters
- (and add a null character at the end in the copy).
- Uses malloc to get the space. Returns the address of the copy. */
+
+/* Return an xmalloc'd error message resulting from a regular
+ expression compilation failure. */
char *
-savestring (const char *ptr, size_t size)
+get_regcomp_error (int code, regex_t *rx)
{
- char *p = (char *) xmalloc (size + 1);
- memcpy (p, ptr, size);
- p[size] = 0;
- return p;
-}
+ size_t length = regerror (code, rx, NULL, 0);
+ char *result = xmalloc (length);
-void
-print_spaces (int n, struct ui_file *file)
-{
- fputs_unfiltered (n_spaces (n), file);
+ regerror (code, rx, result, length);
+ return result;
}
-/* Print a host address. */
+/* Compile a regexp and throw an exception on error. This returns a
+ cleanup to free the resulting pattern on success. RX must not be
+ NULL. */
-void
-gdb_print_host_address (const void *addr, struct ui_file *stream)
+struct cleanup *
+compile_rx_or_error (regex_t *pattern, const char *rx, const char *message)
{
+ int code;
+
+ gdb_assert (rx != NULL);
+
+ code = regcomp (pattern, rx, REG_NOSUB);
+ if (code != 0)
+ {
+ char *err = get_regcomp_error (code, pattern);
- /* We could use the %p conversion specifier to fprintf if we had any
- way of knowing whether this host supports it. But the following
- should work on the Alpha and on 32 bit machines. */
+ make_cleanup (xfree, err);
+ error (("%s: %s"), message, err);
+ }
- fprintf_filtered (stream, "0x%lx", (unsigned long) addr);
+ return make_regfree_cleanup (pattern);
}
+
\f
/* This function supports the query, nquery, and yquery functions.
ARGS are the arguments passed along with the CTLSTR argument to
printf. */
-static int ATTR_FORMAT (printf, 1, 0)
+static int ATTRIBUTE_PRINTF (1, 0)
defaulted_query (const char *ctlstr, const char defchar, va_list args)
{
- int answer;
int ans2;
int retval;
int def_value;
char def_answer, not_def_answer;
- char *y_string, *n_string, *question;
+ char *y_string, *n_string, *question, *prompt;
+ /* Used to add duration we waited for user to respond to
+ prompt_for_continue_wait_time. */
+ struct timeval prompt_started, prompt_ended, prompt_delta;
/* Set up according to which answer is the default. */
if (defchar == '\0')
}
/* Automatically answer the default value if the user did not want
- prompts. */
- if (! caution)
+ prompts or the command was issued with the server prefix. */
+ if (!confirm || server_command)
return def_value;
/* If input isn't coming from the user directly, just say what
- question we're asking, and then answer "yes" automatically. This
+ question we're asking, and then answer the default automatically. This
way, important error messages don't get lost when talking to GDB
over a pipe. */
if (! input_from_terminal_p ())
wrap_here ("");
vfprintf_filtered (gdb_stdout, ctlstr, args);
- printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"),
+ printf_filtered (_("(%s or %s) [answered %c; "
+ "input not from terminal]\n"),
y_string, n_string, def_answer);
gdb_flush (gdb_stdout);
return def_value;
}
- /* Automatically answer the default value if input is not from the user
- directly, or if the user did not want prompts. */
- if (!input_from_terminal_p () || !caution)
- return def_value;
-
if (deprecated_query_hook)
{
return deprecated_query_hook (ctlstr, args);
/* Format the question outside of the loop, to avoid reusing args. */
question = xstrvprintf (ctlstr, args);
+ prompt = xstrprintf (_("%s%s(%s or %s) %s"),
+ annotation_level > 1 ? "\n\032\032pre-query\n" : "",
+ question, y_string, n_string,
+ annotation_level > 1 ? "\n\032\032query\n" : "");
+ xfree (question);
+
+ /* Used for calculating time spend waiting for user. */
+ gettimeofday (&prompt_started, NULL);
while (1)
{
- wrap_here (""); /* Flush any buffered output */
- gdb_flush (gdb_stdout);
+ char *response, answer;
- if (annotation_level > 1)
- printf_filtered (("\n\032\032pre-query\n"));
-
- fputs_filtered (question, gdb_stdout);
- printf_filtered (_("(%s or %s) "), y_string, n_string);
-
- if (annotation_level > 1)
- printf_filtered (("\n\032\032query\n"));
-
- wrap_here ("");
gdb_flush (gdb_stdout);
+ response = gdb_readline_wrapper (prompt);
- answer = fgetc (stdin);
- clearerr (stdin); /* in case of C-d */
- if (answer == EOF) /* C-d */
+ if (response == NULL) /* C-d */
{
printf_filtered ("EOF [assumed %c]\n", def_answer);
retval = def_value;
break;
}
- /* Eat rest of input line, to EOF or newline */
- if (answer != '\n')
- do
- {
- ans2 = fgetc (stdin);
- clearerr (stdin);
- }
- while (ans2 != EOF && ans2 != '\n' && ans2 != '\r');
+
+ answer = response[0];
+ xfree (response);
if (answer >= 'a')
answer -= 040;
specify the required input or have it default by entering
nothing. */
if (answer == def_answer
- || (defchar != '\0' &&
- (answer == '\n' || answer == '\r' || answer == EOF)))
+ || (defchar != '\0' && answer == '\0'))
{
retval = def_value;
break;
y_string, n_string);
}
- xfree (question);
+ /* Add time spend in this routine to prompt_for_continue_wait_time. */
+ gettimeofday (&prompt_ended, NULL);
+ timeval_sub (&prompt_delta, &prompt_ended, &prompt_started);
+ timeval_add (&prompt_for_continue_wait_time,
+ &prompt_for_continue_wait_time, &prompt_delta);
+
+ xfree (prompt);
if (annotation_level > 1)
printf_filtered (("\n\032\032post-query\n"));
return retval;
nquery (const char *ctlstr, ...)
{
va_list args;
+ int ret;
va_start (args, ctlstr);
- return defaulted_query (ctlstr, 'n', args);
+ ret = defaulted_query (ctlstr, 'n', args);
va_end (args);
+ return ret;
}
/* Ask user a y-or-n question and return 0 if answer is no, 1 if
yquery (const char *ctlstr, ...)
{
va_list args;
+ int ret;
va_start (args, ctlstr);
- return defaulted_query (ctlstr, 'y', args);
+ ret = defaulted_query (ctlstr, 'y', args);
va_end (args);
+ return ret;
}
/* Ask user a y-or-n question and return 1 iff answer is yes.
query (const char *ctlstr, ...)
{
va_list args;
+ int ret;
va_start (args, ctlstr);
- return defaulted_query (ctlstr, '\0', args);
+ ret = defaulted_query (ctlstr, '\0', args);
va_end (args);
+ return ret;
}
-/* Print an error message saying that we couldn't make sense of a
- \^mumble sequence in a string or character constant. START and END
- indicate a substring of some larger string that contains the
- erroneous backslash sequence, missing the initial backslash. */
-static NORETURN int
-no_control_char_error (const char *start, const char *end)
+/* A helper for parse_escape that converts a host character to a
+ target character. C is the host character. If conversion is
+ possible, then the target character is stored in *TARGET_C and the
+ function returns 1. Otherwise, the function returns 0. */
+
+static int
+host_char_to_target (struct gdbarch *gdbarch, int c, int *target_c)
{
- int len = end - start;
- char *copy = alloca (end - start + 1);
+ struct obstack host_data;
+ char the_char = c;
+ struct cleanup *cleanups;
+ int result = 0;
+
+ obstack_init (&host_data);
+ cleanups = make_cleanup_obstack_free (&host_data);
- memcpy (copy, start, len);
- copy[len] = '\0';
+ convert_between_encodings (target_charset (gdbarch), host_charset (),
+ (gdb_byte *) &the_char, 1, 1,
+ &host_data, translit_none);
+
+ if (obstack_object_size (&host_data) == 1)
+ {
+ result = 1;
+ *target_c = *(char *) obstack_base (&host_data);
+ }
- error (_("There is no control character `\\%s' in the `%s' character set."),
- copy, target_charset ());
+ do_cleanups (cleanups);
+ return result;
}
/* Parse a C escape sequence. STRING_PTR points to a variable
after the zeros. A value of 0 does not mean end of string. */
int
-parse_escape (char **string_ptr)
+parse_escape (struct gdbarch *gdbarch, const char **string_ptr)
{
- int target_char;
+ int target_char = -2; /* Initialize to avoid GCC warnings. */
int c = *(*string_ptr)++;
- if (c_parse_backslash (c, &target_char))
- return target_char;
- else
- switch (c)
- {
+
+ switch (c)
+ {
case '\n':
return -2;
case 0:
(*string_ptr)--;
return 0;
- case '^':
- {
- /* Remember where this escape sequence started, for reporting
- errors. */
- char *sequence_start_pos = *string_ptr - 1;
-
- c = *(*string_ptr)++;
-
- if (c == '?')
- {
- /* XXXCHARSET: What is `delete' in the host character set? */
- c = 0177;
-
- if (!host_char_to_target (c, &target_char))
- error (_("There is no character corresponding to `Delete' "
- "in the target character set `%s'."), host_charset ());
-
- return target_char;
- }
- else if (c == '\\')
- target_char = parse_escape (string_ptr);
- else
- {
- if (!host_char_to_target (c, &target_char))
- no_control_char_error (sequence_start_pos, *string_ptr);
- }
-
- /* Now target_char is something like `c', and we want to find
- its control-character equivalent. */
- if (!target_char_to_control_char (target_char, &target_char))
- no_control_char_error (sequence_start_pos, *string_ptr);
-
- return target_char;
- }
-
- /* XXXCHARSET: we need to use isdigit and value-of-digit
- methods of the host character set here. */
case '0':
case '1':
case '6':
case '7':
{
- int i = c - '0';
+ int i = host_hex_value (c);
int count = 0;
while (++count < 3)
{
c = (**string_ptr);
- if (c >= '0' && c <= '7')
+ if (isdigit (c) && c != '8' && c != '9')
{
(*string_ptr)++;
i *= 8;
- i += c - '0';
+ i += host_hex_value (c);
}
else
{
}
return i;
}
- default:
- if (!host_char_to_target (c, &target_char))
- error
- ("The escape sequence `\%c' is equivalent to plain `%c', which"
- " has no equivalent\n" "in the `%s' character set.", c, c,
- target_charset ());
- return target_char;
- }
+
+ case 'a':
+ c = '\a';
+ break;
+ case 'b':
+ c = '\b';
+ break;
+ case 'f':
+ c = '\f';
+ break;
+ case 'n':
+ c = '\n';
+ break;
+ case 'r':
+ c = '\r';
+ break;
+ case 't':
+ c = '\t';
+ break;
+ case 'v':
+ c = '\v';
+ break;
+
+ default:
+ break;
+ }
+
+ if (!host_char_to_target (gdbarch, c, &target_char))
+ error (_("The escape sequence `\\%c' is equivalent to plain `%c',"
+ " which has no equivalent\nin the `%s' character set."),
+ c, c, target_charset (gdbarch));
+ return target_char;
}
\f
/* Print the character C on STREAM as part of the contents of a literal
string whose delimiter is QUOTER. Note that this routine should only
be call for printing things which are independent of the language
- of the program being debugged. */
+ of the program being debugged.
+
+ printchar will normally escape backslashes and instances of QUOTER. If
+ QUOTER is 0, printchar won't escape backslashes or any quoting character.
+ As a side effect, if you pass the backslash character as the QUOTER,
+ printchar will escape backslashes as usual, but not any other quoting
+ character. */
static void
printchar (int c, void (*do_fputs) (const char *, struct ui_file *),
void (*do_fprintf) (struct ui_file *, const char *, ...)
ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter)
{
-
c &= 0xFF; /* Avoid sign bit follies */
if (c < 0x20 || /* Low control chars */
}
else
{
- if (c == '\\' || c == quoter)
+ if (quoter != 0 && (c == '\\' || c == quoter))
do_fputs ("\\", stream);
do_fprintf (stream, "%c", c);
}
/* Print the character C on STREAM as part of the contents of a
literal string whose delimiter is QUOTER. Note that these routines
should only be call for printing things which are independent of
- the language of the program being debugged. */
+ the language of the program being debugged. */
void
fputstr_filtered (const char *str, int quoter, struct ui_file *stream)
struct ui_file *stream)
{
int i;
+
for (i = 0; i < n; i++)
printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter);
}
struct ui_file *stream)
{
int i;
+
for (i = 0; i < n; i++)
printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter);
}
show_lines_per_page (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
- fprintf_filtered (file, _("\
-Number of lines gdb thinks are in a page is %s.\n"),
+ fprintf_filtered (file,
+ _("Number of lines gdb thinks are in a page is %s.\n"),
value);
}
show_chars_per_line (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
- fprintf_filtered (file, _("\
-Number of characters gdb thinks are in a line is %s.\n"),
+ fprintf_filtered (file,
+ _("Number of characters gdb thinks "
+ "are in a line is %s.\n"),
value);
}
void
init_page_info (void)
{
+ if (batch_flag)
+ {
+ lines_per_page = UINT_MAX;
+ chars_per_line = UINT_MAX;
+ }
+ else
#if defined(TUI)
if (!tui_get_command_dimension (&chars_per_line, &lines_per_page))
#endif
lines_per_page = rows;
chars_per_line = cols;
- /* Readline should have fetched the termcap entry for us. */
- if (tgetnum ("li") < 0 || getenv ("EMACS"))
+ /* Readline should have fetched the termcap entry for us.
+ Only try to use tgetnum function if rl_get_screen_size
+ did not return a useful value. */
+ if (((rows <= 0) && (tgetnum ("li") < 0))
+ /* Also disable paging if inside EMACS. */
+ || getenv ("EMACS"))
{
- /* The number of lines per page is not mentioned in the
- terminal description. This probably means that paging is
- not useful (e.g. emacs shell window), so disable paging. */
+ /* The number of lines per page is not mentioned in the terminal
+ description or EMACS evironment variable is set. This probably
+ means that paging is not useful, so disable paging. */
lines_per_page = UINT_MAX;
}
- /* FIXME: Get rid of this junk. */
-#if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
- SIGWINCH_HANDLER (SIGWINCH);
-#endif
-
/* If the output is not a terminal, don't paginate it. */
if (!ui_file_isatty (gdb_stdout))
lines_per_page = UINT_MAX;
#endif
}
+ /* We handle SIGWINCH ourselves. */
+ rl_catch_sigwinch = 0;
+
set_screen_size ();
set_width ();
}
-/* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
+/* Return nonzero if filtered printing is initialized. */
+int
+filtered_printing_initialized (void)
+{
+ return wrap_buffer != NULL;
+}
+
+/* Helper for make_cleanup_restore_page_info. */
static void
-set_screen_size (void)
+do_restore_page_info_cleanup (void *arg)
{
- int rows = lines_per_page;
+ set_screen_size ();
+ set_width ();
+}
+
+/* Provide cleanup for restoring the terminal size. */
+
+struct cleanup *
+make_cleanup_restore_page_info (void)
+{
+ struct cleanup *back_to;
+
+ back_to = make_cleanup (do_restore_page_info_cleanup, NULL);
+ make_cleanup_restore_uinteger (&lines_per_page);
+ make_cleanup_restore_uinteger (&chars_per_line);
+
+ return back_to;
+}
+
+/* Temporarily set BATCH_FLAG and the associated unlimited terminal size.
+ Provide cleanup for restoring the original state. */
+
+struct cleanup *
+set_batch_flag_and_make_cleanup_restore_page_info (void)
+{
+ struct cleanup *back_to = make_cleanup_restore_page_info ();
+
+ make_cleanup_restore_integer (&batch_flag);
+ batch_flag = 1;
+ init_page_info ();
+
+ return back_to;
+}
+
+/* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
+
+static void
+set_screen_size (void)
+{
+ int rows = lines_per_page;
int cols = chars_per_line;
if (rows <= 0)
set_screen_size ();
}
+/* See utils.h. */
+
+void
+set_screen_width_and_height (int width, int height)
+{
+ lines_per_page = height;
+ chars_per_line = width;
+
+ set_screen_size ();
+ set_width ();
+}
+
/* Wait, so the user can read what's on the screen. Prompt the user
to continue by pressing RETURN. */
{
char *ignore;
char cont_prompt[120];
+ /* Used to add duration we waited for user to respond to
+ prompt_for_continue_wait_time. */
+ struct timeval prompt_started, prompt_ended, prompt_delta;
+
+ gettimeofday (&prompt_started, NULL);
if (annotation_level > 1)
printf_unfiltered (("\n\032\032pre-prompt-for-continue\n"));
reinitialize_more_filter ();
immediate_quit++;
+ QUIT;
+
+ /* We'll need to handle input. */
+ target_terminal_ours ();
+
/* On a real operating system, the user can quit with SIGINT.
But not on GO32.
out to DOS. */
ignore = gdb_readline_wrapper (cont_prompt);
+ /* Add time spend in this routine to prompt_for_continue_wait_time. */
+ gettimeofday (&prompt_ended, NULL);
+ timeval_sub (&prompt_delta, &prompt_ended, &prompt_started);
+ timeval_add (&prompt_for_continue_wait_time,
+ &prompt_for_continue_wait_time, &prompt_delta);
+
if (annotation_level > 1)
printf_unfiltered (("\n\032\032post-prompt-for-continue\n"));
if (ignore)
{
char *p = ignore;
+
while (*p == ' ' || *p == '\t')
++p;
if (p[0] == 'q')
- async_request_quit (0);
+ quit ();
xfree (ignore);
}
immediate_quit--;
need to save the ---Type <return>--- line at the top of the screen. */
reinitialize_more_filter ();
- dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
+ dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
+}
+
+/* Initalize timer to keep track of how long we waited for the user. */
+
+void
+reset_prompt_for_continue_wait_time (void)
+{
+ static const struct timeval zero_timeval = { 0 };
+
+ prompt_for_continue_wait_time = zero_timeval;
+}
+
+/* Fetch the cumulative time spent in prompt_for_continue. */
+
+struct timeval
+get_prompt_for_continue_wait_time (void)
+{
+ return prompt_for_continue_wait_time;
}
/* Reinitialize filter; ie. tell it to reset to original values. */
}
/* Indicate that if the next sequence of characters overflows the line,
- a newline should be inserted here rather than when it hits the end.
+ a newline should be inserted here rather than when it hits the end.
If INDENT is non-null, it is a string to be printed to indent the
wrapped part on the next line. INDENT must remain accessible until
the next call to wrap_here() or until a newline is printed through
void
wrap_here (char *indent)
{
- /* This should have been allocated, but be paranoid anyway. */
+ /* This should have been allocated, but be paranoid anyway. */
if (!wrap_buffer)
- internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
+ internal_error (__FILE__, __LINE__,
+ _("failed internal consistency check"));
if (wrap_buffer[0])
{
}
wrap_pointer = wrap_buffer;
wrap_buffer[0] = '\0';
- if (chars_per_line == UINT_MAX) /* No line overflow checking */
+ if (chars_per_line == UINT_MAX) /* No line overflow checking. */
{
wrap_column = 0;
}
}
/* Print input string to gdb_stdout, filtered, with wrap,
- arranging strings in columns of n chars. String can be
+ arranging strings in columns of n chars. String can be
right or left justified in the column. Never prints
trailing spaces. String should never be longer than
width. FIXME: this could be useful for the EXAMINE
- command, which currently doesn't tabulate very well */
+ command, which currently doesn't tabulate very well. */
void
puts_filtered_tabular (char *string, int width, int right)
/* Ensure that whatever gets printed next, using the filtered output
- commands, starts at the beginning of the line. I.E. if there is
+ commands, starts at the beginning of the line. I.e. if there is
any pending output for the current line, flush it and start a new
- line. Otherwise do nothing. */
+ line. Otherwise do nothing. */
void
begin_line (void)
return;
/* Don't do any filtering if it is disabled. */
- if ((stream != gdb_stdout) || !pagination_enabled
- || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX))
+ if (stream != gdb_stdout
+ || !pagination_enabled
+ || batch_flag
+ || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX)
+ || top_level_interpreter () == NULL
+ || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ())))
{
fputs_unfiltered (linebuffer, stream);
return;
if (lines_printed >= lines_per_page - 1)
prompt_for_continue ();
- /* Now output indentation and wrapped string */
+ /* Now output indentation and wrapped string. */
if (wrap_column)
{
fputs_unfiltered (wrap_indent, stream);
- *wrap_pointer = '\0'; /* Null-terminate saved stuff */
- fputs_unfiltered (wrap_buffer, stream); /* and eject it */
+ *wrap_pointer = '\0'; /* Null-terminate saved stuff, */
+ fputs_unfiltered (wrap_buffer, stream); /* and eject it. */
/* FIXME, this strlen is what prevents wrap_indent from
containing tabs. However, if we recurse to print it
and count its chars, we risk trouble if wrap_indent is
- longer than (the user settable) chars_per_line.
+ longer than (the user settable) chars_per_line.
Note also that this can set chars_printed > chars_per_line
if we are printing a long string. */
chars_printed = strlen (wrap_indent)
if (*lineptr == '\n')
{
chars_printed = 0;
- wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
+ wrap_here ((char *) 0); /* Spit out chars, cancel
+ further wraps. */
lines_printed++;
fputc_unfiltered ('\n', stream);
lineptr++;
putchar_unfiltered (int c)
{
char buf = c;
+
ui_file_write (gdb_stdout, &buf, 1);
return c;
}
fputc_unfiltered (int c, struct ui_file *stream)
{
char buf = c;
+
ui_file_write (stream, &buf, 1);
return c;
}
linebuffer = xstrvprintf (format, args);
old_cleanups = make_cleanup (xfree, linebuffer);
- fputs_unfiltered (linebuffer, stream);
+ if (debug_timestamp && stream == gdb_stdlog)
+ {
+ struct timeval tm;
+ char *timestamp;
+ int len, need_nl;
+
+ gettimeofday (&tm, NULL);
+
+ len = strlen (linebuffer);
+ need_nl = (len > 0 && linebuffer[len - 1] != '\n');
+
+ timestamp = xstrprintf ("%ld:%ld %s%s",
+ (long) tm.tv_sec, (long) tm.tv_usec,
+ linebuffer,
+ need_nl ? "\n": "");
+ make_cleanup (xfree, timestamp);
+ fputs_unfiltered (timestamp, stream);
+ }
+ else
+ fputs_unfiltered (linebuffer, stream);
do_cleanups (old_cleanups);
}
fprintf_filtered (struct ui_file *stream, const char *format, ...)
{
va_list args;
+
va_start (args, format);
vfprintf_filtered (stream, format, args);
va_end (args);
fprintf_unfiltered (struct ui_file *stream, const char *format, ...)
{
va_list args;
+
va_start (args, format);
vfprintf_unfiltered (stream, format, args);
va_end (args);
...)
{
va_list args;
+
va_start (args, format);
print_spaces_filtered (spaces, stream);
printf_filtered (const char *format, ...)
{
va_list args;
+
va_start (args, format);
vfprintf_filtered (gdb_stdout, format, args);
va_end (args);
printf_unfiltered (const char *format, ...)
{
va_list args;
+
va_start (args, format);
vfprintf_unfiltered (gdb_stdout, format, args);
va_end (args);
printfi_filtered (int spaces, const char *format, ...)
{
va_list args;
+
va_start (args, format);
print_spaces_filtered (spaces, gdb_stdout);
vfprintf_filtered (gdb_stdout, format, args);
/* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
If the name is not mangled, or the language for the name is unknown, or
- demangling is off, the name is printed in its "raw" form. */
+ demangling is off, the name is printed in its "raw" form. */
void
-fprintf_symbol_filtered (struct ui_file *stream, char *name,
+fprintf_symbol_filtered (struct ui_file *stream, const char *name,
enum language lang, int arg_mode)
{
char *demangled;
As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
This "feature" is useful when searching for matching C++ function names
(such as if the user types 'break FOO', where FOO is a mangled C++
- function). */
+ function). */
int
strcmp_iw (const char *string1, const char *string2)
{
string2++;
}
- if (*string1 != *string2)
- {
- break;
- }
+ if (case_sensitivity == case_sensitive_on && *string1 != *string2)
+ break;
+ if (case_sensitivity == case_sensitive_off
+ && (tolower ((unsigned char) *string1)
+ != tolower ((unsigned char) *string2)))
+ break;
if (*string1 != '\0')
{
string1++;
strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
where this function would put NAME.
+ This function must be neutral to the CASE_SENSITIVITY setting as the user
+ may choose it during later lookup. Therefore this function always sorts
+ primarily case-insensitively and secondarily case-sensitively.
+
Here are some examples of why using strcmp to sort is a bad idea:
Whitespace example:
int
strcmp_iw_ordered (const char *string1, const char *string2)
{
- while ((*string1 != '\0') && (*string2 != '\0'))
+ const char *saved_string1 = string1, *saved_string2 = string2;
+ enum case_sensitivity case_pass = case_sensitive_off;
+
+ for (;;)
{
- while (isspace (*string1))
- {
- string1++;
- }
- while (isspace (*string2))
- {
- string2++;
- }
- if (*string1 != *string2)
+ /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'.
+ Provide stub characters if we are already at the end of one of the
+ strings. */
+ char c1 = 'X', c2 = 'X';
+
+ while (*string1 != '\0' && *string2 != '\0')
{
- break;
+ while (isspace (*string1))
+ string1++;
+ while (isspace (*string2))
+ string2++;
+
+ switch (case_pass)
+ {
+ case case_sensitive_off:
+ c1 = tolower ((unsigned char) *string1);
+ c2 = tolower ((unsigned char) *string2);
+ break;
+ case case_sensitive_on:
+ c1 = *string1;
+ c2 = *string2;
+ break;
+ }
+ if (c1 != c2)
+ break;
+
+ if (*string1 != '\0')
+ {
+ string1++;
+ string2++;
+ }
}
- if (*string1 != '\0')
+
+ switch (*string1)
{
- string1++;
- string2++;
+ /* Characters are non-equal unless they're both '\0'; we want to
+ make sure we get the comparison right according to our
+ comparison in the cases where one of them is '\0' or '('. */
+ case '\0':
+ if (*string2 == '\0')
+ break;
+ else
+ return -1;
+ case '(':
+ if (*string2 == '\0')
+ return 1;
+ else
+ return -1;
+ default:
+ if (*string2 == '\0' || *string2 == '(')
+ return 1;
+ else if (c1 > c2)
+ return 1;
+ else if (c1 < c2)
+ return -1;
+ /* PASSTHRU */
}
- }
- switch (*string1)
- {
- /* Characters are non-equal unless they're both '\0'; we want to
- make sure we get the comparison right according to our
- comparison in the cases where one of them is '\0' or '('. */
- case '\0':
- if (*string2 == '\0')
+ if (case_pass == case_sensitive_on)
return 0;
- else
- return -1;
- case '(':
- if (*string2 == '\0')
- return 1;
- else
- return -1;
- default:
- if (*string2 == '(')
- return 1;
- else
- return *string1 - *string2;
+
+ /* Otherwise the strings were equal in case insensitive way, make
+ a more fine grained comparison in a case sensitive way. */
+
+ case_pass = case_sensitive_on;
+ string1 = saved_string1;
+ string2 = saved_string2;
}
}
subset_compare (char *string_to_compare, char *template_string)
{
int match;
+
if (template_string != (char *) NULL && string_to_compare != (char *) NULL
&& strlen (string_to_compare) <= strlen (template_string))
match =
- (strncmp
- (template_string, string_to_compare, strlen (string_to_compare)) == 0);
+ (startswith (template_string, string_to_compare));
else
match = 0;
return match;
}
static void
-pagination_on_command (char *arg, int from_tty)
+show_debug_timestamp (struct ui_file *file, int from_tty,
+ struct cmd_list_element *c, const char *value)
{
- pagination_enabled = 1;
-}
-
-static void
-pagination_off_command (char *arg, int from_tty)
-{
- pagination_enabled = 0;
+ fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"),
+ value);
}
\f
void
initialize_utils (void)
{
- struct cmd_list_element *c;
-
add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\
-Set number of characters gdb thinks are in a line."), _("\
-Show number of characters gdb thinks are in a line."), NULL,
+Set number of characters where GDB should wrap lines of its output."), _("\
+Show number of characters where GDB should wrap lines of its output."), _("\
+This affects where GDB wraps its output to fit the screen width.\n\
+Setting this to \"unlimited\" or zero prevents GDB from wrapping its output."),
set_width_command,
show_chars_per_line,
&setlist, &showlist);
add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\
-Set number of lines gdb thinks are in a page."), _("\
-Show number of lines gdb thinks are in a page."), NULL,
+Set number of lines in a page for GDB output pagination."), _("\
+Show number of lines in a page for GDB output pagination."), _("\
+This affects the number of lines after which GDB will pause\n\
+its output and ask you whether to continue.\n\
+Setting this to \"unlimited\" or zero causes GDB never pause during output."),
set_height_command,
show_lines_per_page,
&setlist, &showlist);
- init_page_info ();
-
- add_setshow_boolean_cmd ("demangle", class_support, &demangle, _("\
-Set demangling of encoded C++/ObjC names when displaying symbols."), _("\
-Show demangling of encoded C++/ObjC names when displaying symbols."), NULL,
- NULL,
- show_demangle,
- &setprintlist, &showprintlist);
-
add_setshow_boolean_cmd ("pagination", class_support,
&pagination_enabled, _("\
-Set state of pagination."), _("\
-Show state of pagination."), NULL,
+Set state of GDB output pagination."), _("\
+Show state of GDB output pagination."), _("\
+When pagination is ON, GDB pauses at end of each screenful of\n\
+its output and asks you whether to continue.\n\
+Turning pagination off is an alternative to \"set height unlimited\"."),
NULL,
show_pagination_enabled,
&setlist, &showlist);
- if (xdb_commands)
- {
- add_com ("am", class_support, pagination_on_command,
- _("Enable pagination"));
- add_com ("sm", class_support, pagination_off_command,
- _("Disable pagination"));
- }
-
add_setshow_boolean_cmd ("sevenbit-strings", class_support,
&sevenbit_strings, _("\
Set printing of 8-bit characters in strings as \\nnn."), _("\
show_sevenbit_strings,
&setprintlist, &showprintlist);
- add_setshow_boolean_cmd ("asm-demangle", class_support, &asm_demangle, _("\
-Set demangling of C++/ObjC names in disassembly listings."), _("\
-Show demangling of C++/ObjC names in disassembly listings."), NULL,
+ add_setshow_boolean_cmd ("timestamp", class_maintenance,
+ &debug_timestamp, _("\
+Set timestamping of debugging messages."), _("\
+Show timestamping of debugging messages."), _("\
+When set, debugging messages will be marked with seconds and microseconds."),
NULL,
- show_asm_demangle,
- &setprintlist, &showprintlist);
-}
-
-/* Machine specific function to handle SIGWINCH signal. */
-
-#ifdef SIGWINCH_HANDLER_BODY
-SIGWINCH_HANDLER_BODY
-#endif
-/* print routines to handle variable size regs, etc. */
-/* temporary storage using circular buffer */
-#define NUMCELLS 16
-#define CELLSIZE 50
-static char *
-get_cell (void)
-{
- static char buf[NUMCELLS][CELLSIZE];
- static int cell = 0;
- if (++cell >= NUMCELLS)
- cell = 0;
- return buf[cell];
-}
-
-int
-strlen_paddr (void)
-{
- return (gdbarch_addr_bit (current_gdbarch) / 8 * 2);
-}
-
-char *
-paddr (CORE_ADDR addr)
-{
- return phex (addr, gdbarch_addr_bit (current_gdbarch) / 8);
-}
-
-char *
-paddr_nz (CORE_ADDR addr)
-{
- return phex_nz (addr, gdbarch_addr_bit (current_gdbarch) / 8);
+ show_debug_timestamp,
+ &setdebuglist, &showdebuglist);
}
const char *
-paddress (CORE_ADDR addr)
+paddress (struct gdbarch *gdbarch, CORE_ADDR addr)
{
/* Truncate address to the size of a target address, avoiding shifts
larger or equal than the width of a CORE_ADDR. The local
variable ADDR_BIT stops the compiler reporting a shift overflow
- when it won't occur. */
+ when it won't occur. */
/* NOTE: This assumes that the significant address information is
kept in the least significant bits of ADDR - the upper bits were
either zero or sign extended. Should gdbarch_address_to_pointer or
some ADDRESS_TO_PRINTABLE() be used to do the conversion? */
- int addr_bit = gdbarch_addr_bit (current_gdbarch);
+ int addr_bit = gdbarch_addr_bit (gdbarch);
if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))
addr &= ((CORE_ADDR) 1 << addr_bit) - 1;
return hex_string (addr);
}
-static char *
-decimal2str (char *sign, ULONGEST addr, int width)
-{
- /* Steal code from valprint.c:print_decimal(). Should this worry
- about the real size of addr as the above does? */
- unsigned long temp[3];
- char *str = get_cell ();
-
- int i = 0;
- do
- {
- temp[i] = addr % (1000 * 1000 * 1000);
- addr /= (1000 * 1000 * 1000);
- i++;
- width -= 9;
- }
- while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0])));
+/* This function is described in "defs.h". */
- width += 9;
- if (width < 0)
- width = 0;
-
- switch (i)
- {
- case 1:
- xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]);
- break;
- case 2:
- xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width,
- temp[1], temp[0]);
- break;
- case 3:
- xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width,
- temp[2], temp[1], temp[0]);
- break;
- default:
- internal_error (__FILE__, __LINE__,
- _("failed internal consistency check"));
- }
-
- return str;
-}
-
-static char *
-octal2str (ULONGEST addr, int width)
+const char *
+print_core_address (struct gdbarch *gdbarch, CORE_ADDR address)
{
- unsigned long temp[3];
- char *str = get_cell ();
-
- int i = 0;
- do
- {
- temp[i] = addr % (0100000 * 0100000);
- addr /= (0100000 * 0100000);
- i++;
- width -= 10;
- }
- while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0])));
-
- width += 10;
- if (width < 0)
- width = 0;
+ int addr_bit = gdbarch_addr_bit (gdbarch);
- switch (i)
- {
- case 1:
- if (temp[0] == 0)
- xsnprintf (str, CELLSIZE, "%*o", width, 0);
- else
- xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]);
- break;
- case 2:
- xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]);
- break;
- case 3:
- xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width,
- temp[2], temp[1], temp[0]);
- break;
- default:
- internal_error (__FILE__, __LINE__,
- _("failed internal consistency check"));
- }
-
- return str;
-}
-
-char *
-paddr_u (CORE_ADDR addr)
-{
- return decimal2str ("", addr, 0);
-}
+ if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))
+ address &= ((CORE_ADDR) 1 << addr_bit) - 1;
-char *
-paddr_d (LONGEST addr)
-{
- if (addr < 0)
- return decimal2str ("-", -addr, 0);
+ /* FIXME: cagney/2002-05-03: Need local_address_string() function
+ that returns the language localized string formatted to a width
+ based on gdbarch_addr_bit. */
+ if (addr_bit <= 32)
+ return hex_string_custom (address, 8);
else
- return decimal2str ("", addr, 0);
+ return hex_string_custom (address, 16);
}
-/* Eliminate warning from compiler on 32-bit systems. */
-static int thirty_two = 32;
+/* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */
-char *
-phex (ULONGEST l, int sizeof_l)
+hashval_t
+core_addr_hash (const void *ap)
{
- char *str;
-
- switch (sizeof_l)
- {
- case 8:
- str = get_cell ();
- xsnprintf (str, CELLSIZE, "%08lx%08lx",
- (unsigned long) (l >> thirty_two),
- (unsigned long) (l & 0xffffffff));
- break;
- case 4:
- str = get_cell ();
- xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l);
- break;
- case 2:
- str = get_cell ();
- xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff));
- break;
- default:
- str = phex (l, sizeof (l));
- break;
- }
+ const CORE_ADDR *addrp = ap;
- return str;
+ return *addrp;
}
-char *
-phex_nz (ULONGEST l, int sizeof_l)
-{
- char *str;
+/* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */
- switch (sizeof_l)
- {
- case 8:
- {
- unsigned long high = (unsigned long) (l >> thirty_two);
- str = get_cell ();
- if (high == 0)
- xsnprintf (str, CELLSIZE, "%lx",
- (unsigned long) (l & 0xffffffff));
- else
- xsnprintf (str, CELLSIZE, "%lx%08lx", high,
- (unsigned long) (l & 0xffffffff));
- break;
- }
- case 4:
- str = get_cell ();
- xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l);
- break;
- case 2:
- str = get_cell ();
- xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff));
- break;
- default:
- str = phex_nz (l, sizeof (l));
- break;
- }
-
- return str;
-}
-
-/* Converts a LONGEST to a C-format hexadecimal literal and stores it
- in a static string. Returns a pointer to this string. */
-char *
-hex_string (LONGEST num)
-{
- char *result = get_cell ();
- xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num)));
- return result;
-}
-
-/* Converts a LONGEST number to a C-format hexadecimal literal and
- stores it in a static string. Returns a pointer to this string
- that is valid until the next call. The number is padded on the
- left with 0s to at least WIDTH characters. */
-char *
-hex_string_custom (LONGEST num, int width)
-{
- char *result = get_cell ();
- char *result_end = result + CELLSIZE - 1;
- const char *hex = phex_nz (num, sizeof (num));
- int hex_len = strlen (hex);
-
- if (hex_len > width)
- width = hex_len;
- if (width + 2 >= CELLSIZE)
- internal_error (__FILE__, __LINE__,
- _("hex_string_custom: insufficient space to store result"));
-
- strcpy (result_end - width - 2, "0x");
- memset (result_end - width, '0', width);
- strcpy (result_end - hex_len, hex);
- return result_end - width - 2;
-}
-
-/* Convert VAL to a numeral in the given radix. For
- * radix 10, IS_SIGNED may be true, indicating a signed quantity;
- * otherwise VAL is interpreted as unsigned. If WIDTH is supplied,
- * it is the minimum width (0-padded if needed). USE_C_FORMAT means
- * to use C format in all cases. If it is false, then 'x'
- * and 'o' formats do not include a prefix (0x or leading 0). */
-
-char *
-int_string (LONGEST val, int radix, int is_signed, int width,
- int use_c_format)
-{
- switch (radix)
- {
- case 16:
- {
- char *result;
- if (width == 0)
- result = hex_string (val);
- else
- result = hex_string_custom (val, width);
- if (! use_c_format)
- result += 2;
- return result;
- }
- case 10:
- {
- if (is_signed && val < 0)
- return decimal2str ("-", -val, width);
- else
- return decimal2str ("", val, width);
- }
- case 8:
- {
- char *result = octal2str (val, width);
- if (use_c_format || val == 0)
- return result;
- else
- return result + 1;
- }
- default:
- internal_error (__FILE__, __LINE__,
- _("failed internal consistency check"));
- }
-}
-
-/* Convert a CORE_ADDR into a string. */
-const char *
-core_addr_to_string (const CORE_ADDR addr)
+int
+core_addr_eq (const void *ap, const void *bp)
{
- char *str = get_cell ();
- strcpy (str, "0x");
- strcat (str, phex (addr, sizeof (addr)));
- return str;
-}
+ const CORE_ADDR *addr_ap = ap;
+ const CORE_ADDR *addr_bp = bp;
-const char *
-core_addr_to_string_nz (const CORE_ADDR addr)
-{
- char *str = get_cell ();
- strcpy (str, "0x");
- strcat (str, phex_nz (addr, sizeof (addr)));
- return str;
+ return *addr_ap == *addr_bp;
}
/* Convert a string back into a CORE_ADDR. */
string_to_core_addr (const char *my_string)
{
CORE_ADDR addr = 0;
+
if (my_string[0] == '0' && tolower (my_string[1]) == 'x')
{
/* Assume that it is in hex. */
int i;
+
for (i = 2; my_string[i] != '\0'; i++)
{
if (isdigit (my_string[i]))
{
/* Assume that it is in decimal. */
int i;
+
for (i = 0; my_string[i] != '\0'; i++)
{
if (isdigit (my_string[i]))
error (_("invalid decimal \"%s\""), my_string);
}
}
+
return addr;
}
char *
gdb_realpath (const char *filename)
{
- /* Method 1: The system has a compile time upper bound on a filename
- path. Use that and realpath() to canonicalize the name. This is
- the most common case. Note that, if there isn't a compile time
- upper bound, you want to avoid realpath() at all costs. */
-#if defined(HAVE_REALPATH)
+/* On most hosts, we rely on canonicalize_file_name to compute
+ the FILENAME's realpath.
+
+ But the situation is slightly more complex on Windows, due to some
+ versions of GCC which were reported to generate paths where
+ backlashes (the directory separator) were doubled. For instance:
+ c:\\some\\double\\slashes\\dir
+ ... instead of ...
+ c:\some\double\slashes\dir
+ Those double-slashes were getting in the way when comparing paths,
+ for instance when trying to insert a breakpoint as follow:
+ (gdb) b c:/some/double/slashes/dir/foo.c:4
+ No source file named c:/some/double/slashes/dir/foo.c:4.
+ (gdb) b c:\some\double\slashes\dir\foo.c:4
+ No source file named c:\some\double\slashes\dir\foo.c:4.
+ To prevent this from happening, we need this function to always
+ strip those extra backslashes. While canonicalize_file_name does
+ perform this simplification, it only works when the path is valid.
+ Since the simplification would be useful even if the path is not
+ valid (one can always set a breakpoint on a file, even if the file
+ does not exist locally), we rely instead on GetFullPathName to
+ perform the canonicalization. */
+
+#if defined (_WIN32)
{
-# if defined (PATH_MAX)
- char buf[PATH_MAX];
-# define USE_REALPATH
-# elif defined (MAXPATHLEN)
- char buf[MAXPATHLEN];
-# define USE_REALPATH
-# endif
-# if defined (USE_REALPATH)
- const char *rp = realpath (filename, buf);
- if (rp == NULL)
- rp = filename;
- return xstrdup (rp);
-# endif
+ char buf[MAX_PATH];
+ DWORD len = GetFullPathName (filename, MAX_PATH, buf, NULL);
+
+ /* The file system is case-insensitive but case-preserving.
+ So it is important we do not lowercase the path. Otherwise,
+ we might not be able to display the original casing in a given
+ path. */
+ if (len > 0 && len < MAX_PATH)
+ return xstrdup (buf);
}
-#endif /* HAVE_REALPATH */
-
- /* Method 2: The host system (i.e., GNU) has the function
- canonicalize_file_name() which malloc's a chunk of memory and
- returns that, use that. */
-#if defined(HAVE_CANONICALIZE_FILE_NAME)
+#else
{
char *rp = canonicalize_file_name (filename);
- if (rp == NULL)
- return xstrdup (filename);
- else
- return rp;
- }
-#endif
- /* FIXME: cagney/2002-11-13:
-
- Method 2a: Use realpath() with a NULL buffer. Some systems, due
- to the problems described in in method 3, have modified their
- realpath() implementation so that it will allocate a buffer when
- NULL is passed in. Before this can be used, though, some sort of
- configure time test would need to be added. Otherwize the code
- will likely core dump. */
-
- /* Method 3: Now we're getting desperate! The system doesn't have a
- compile time buffer size and no alternative function. Query the
- OS, using pathconf(), for the buffer limit. Care is needed
- though, some systems do not limit PATH_MAX (return -1 for
- pathconf()) making it impossible to pass a correctly sized buffer
- to realpath() (it could always overflow). On those systems, we
- skip this. */
-#if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
- {
- /* Find out the max path size. */
- long path_max = pathconf ("/", _PC_PATH_MAX);
- if (path_max > 0)
- {
- /* PATH_MAX is bounded. */
- char *buf = alloca (path_max);
- char *rp = realpath (filename, buf);
- return xstrdup (rp ? rp : filename);
- }
+ if (rp != NULL)
+ return rp;
}
#endif
by gdb_realpath. */
char *
-xfullpath (const char *filename)
+gdb_realpath_keepfile (const char *filename)
{
const char *base_name = lbasename (filename);
char *dir_name;
char *result;
/* Extract the basename of filename, and return immediately
- a copy of filename if it does not contain any directory prefix. */
+ a copy of filename if it does not contain any directory prefix. */
if (base_name == filename)
return xstrdup (filename);
dir_name = alloca ((size_t) (base_name - filename + 2));
/* Allocate enough space to store the dir_name + plus one extra
character sometimes needed under Windows (see below), and
- then the closing \000 character */
+ then the closing \000 character. */
strncpy (dir_name, filename, base_name - filename);
dir_name[base_name - filename] = '\000';
#endif
/* Canonicalize the directory prefix, and build the resulting
- filename. If the dirname realpath already contains an ending
+ filename. If the dirname realpath already contains an ending
directory separator, avoid doubling it. */
real_path = gdb_realpath (dir_name);
if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1]))
- result = concat (real_path, base_name, (char *)NULL);
+ result = concat (real_path, base_name, (char *) NULL);
else
- result = concat (real_path, SLASH_STRING, base_name, (char *)NULL);
+ result = concat (real_path, SLASH_STRING, base_name, (char *) NULL);
xfree (real_path);
return result;
}
+/* Return PATH in absolute form, performing tilde-expansion if necessary.
+ PATH cannot be NULL or the empty string.
+ This does not resolve symlinks however, use gdb_realpath for that.
+ Space for the result is allocated with malloc.
+ If the path is already absolute, it is strdup'd.
+ If there is a problem computing the absolute path, the path is returned
+ unchanged (still strdup'd). */
-/* This is the 32-bit CRC function used by the GNU separate debug
- facility. An executable may contain a section named
- .gnu_debuglink, which holds the name of a separate executable file
- containing its debug info, and a checksum of that file's contents,
- computed using this function. */
-unsigned long
-gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len)
-{
- static const unsigned long crc32_table[256] = {
- 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
- 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
- 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
- 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
- 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
- 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
- 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
- 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
- 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
- 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
- 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
- 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
- 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
- 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
- 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
- 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
- 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
- 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
- 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
- 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
- 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
- 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
- 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
- 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
- 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
- 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
- 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
- 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
- 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
- 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
- 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
- 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
- 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
- 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
- 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
- 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
- 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
- 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
- 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
- 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
- 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
- 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
- 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
- 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
- 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
- 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
- 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
- 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
- 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
- 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
- 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
- 0x2d02ef8d
- };
- unsigned char *end;
-
- crc = ~crc & 0xffffffff;
- for (end = buf + len; buf < end; ++buf)
- crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8);
- return ~crc & 0xffffffff;;
+char *
+gdb_abspath (const char *path)
+{
+ gdb_assert (path != NULL && path[0] != '\0');
+
+ if (path[0] == '~')
+ return tilde_expand (path);
+
+ if (IS_ABSOLUTE_PATH (path))
+ return xstrdup (path);
+
+ /* Beware the // my son, the Emacs barfs, the botch that catch... */
+ return concat (current_directory,
+ IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1])
+ ? "" : SLASH_STRING,
+ path, (char *) NULL);
}
ULONGEST
void *
hashtab_obstack_allocate (void *data, size_t size, size_t count)
{
- unsigned int total = size * count;
+ size_t total = size * count;
void *ptr = obstack_alloc ((struct obstack *) data, total);
+
memset (ptr, 0, total);
return ptr;
}
dirname[base - filename] = '\0';
return dirname;
}
+
+/* Call libiberty's buildargv, and return the result.
+ If buildargv fails due to out-of-memory, call nomem.
+ Therefore, the returned value is guaranteed to be non-NULL,
+ unless the parameter itself is NULL. */
+
+char **
+gdb_buildargv (const char *s)
+{
+ char **argv = buildargv (s);
+
+ if (s != NULL && argv == NULL)
+ malloc_failure (0);
+ return argv;
+}
+
+int
+compare_positive_ints (const void *ap, const void *bp)
+{
+ /* Because we know we're comparing two ints which are positive,
+ there's no danger of overflow here. */
+ return * (int *) ap - * (int *) bp;
+}
+
+/* String compare function for qsort. */
+
+int
+compare_strings (const void *arg1, const void *arg2)
+{
+ const char **s1 = (const char **) arg1;
+ const char **s2 = (const char **) arg2;
+
+ return strcmp (*s1, *s2);
+}
+
+#define AMBIGUOUS_MESS1 ".\nMatching formats:"
+#define AMBIGUOUS_MESS2 \
+ ".\nUse \"set gnutarget format-name\" to specify the format."
+
+const char *
+gdb_bfd_errmsg (bfd_error_type error_tag, char **matching)
+{
+ char *ret, *retp;
+ int ret_len;
+ char **p;
+
+ /* Check if errmsg just need simple return. */
+ if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL)
+ return bfd_errmsg (error_tag);
+
+ ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1)
+ + strlen (AMBIGUOUS_MESS2);
+ for (p = matching; *p; p++)
+ ret_len += strlen (*p) + 1;
+ ret = xmalloc (ret_len + 1);
+ retp = ret;
+ make_cleanup (xfree, ret);
+
+ strcpy (retp, bfd_errmsg (error_tag));
+ retp += strlen (retp);
+
+ strcpy (retp, AMBIGUOUS_MESS1);
+ retp += strlen (retp);
+
+ for (p = matching; *p; p++)
+ {
+ sprintf (retp, " %s", *p);
+ retp += strlen (retp);
+ }
+ xfree (matching);
+
+ strcpy (retp, AMBIGUOUS_MESS2);
+
+ return ret;
+}
+
+/* Return ARGS parsed as a valid pid, or throw an error. */
+
+int
+parse_pid_to_attach (const char *args)
+{
+ unsigned long pid;
+ char *dummy;
+
+ if (!args)
+ error_no_arg (_("process-id to attach"));
+
+ dummy = (char *) args;
+ pid = strtoul (args, &dummy, 0);
+ /* Some targets don't set errno on errors, grrr! */
+ if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)])
+ error (_("Illegal process-id: %s."), args);
+
+ return pid;
+}
+
+/* Helper for make_bpstat_clear_actions_cleanup. */
+
+static void
+do_bpstat_clear_actions_cleanup (void *unused)
+{
+ bpstat_clear_actions ();
+}
+
+/* Call bpstat_clear_actions for the case an exception is throw. You should
+ discard_cleanups if no exception is caught. */
+
+struct cleanup *
+make_bpstat_clear_actions_cleanup (void)
+{
+ return make_cleanup (do_bpstat_clear_actions_cleanup, NULL);
+}
+
+/* Check for GCC >= 4.x according to the symtab->producer string. Return minor
+ version (x) of 4.x in such case. If it is not GCC or it is GCC older than
+ 4.x return -1. If it is GCC 5.x or higher return INT_MAX. */
+
+int
+producer_is_gcc_ge_4 (const char *producer)
+{
+ int major, minor;
+
+ if (! producer_is_gcc (producer, &major, &minor))
+ return -1;
+ if (major < 4)
+ return -1;
+ if (major > 4)
+ return INT_MAX;
+ return minor;
+}
+
+/* Returns nonzero if the given PRODUCER string is GCC and sets the MAJOR
+ and MINOR versions when not NULL. Returns zero if the given PRODUCER
+ is NULL or it isn't GCC. */
+
+int
+producer_is_gcc (const char *producer, int *major, int *minor)
+{
+ const char *cs;
+
+ if (producer != NULL && startswith (producer, "GNU "))
+ {
+ int maj, min;
+
+ if (major == NULL)
+ major = &maj;
+ if (minor == NULL)
+ minor = &min;
+
+ /* Skip any identifier after "GNU " - such as "C11" "C++" or "Java".
+ A full producer string might look like:
+ "GNU C 4.7.2"
+ "GNU Fortran 4.8.2 20140120 (Red Hat 4.8.2-16) -mtune=generic ..."
+ "GNU C++14 5.0.0 20150123 (experimental)"
+ */
+ cs = &producer[strlen ("GNU ")];
+ while (*cs && !isspace (*cs))
+ cs++;
+ if (*cs && isspace (*cs))
+ cs++;
+ if (sscanf (cs, "%d.%d", major, minor) == 2)
+ return 1;
+ }
+
+ /* Not recognized as GCC. */
+ return 0;
+}
+
+/* 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);
+}
+
+/* Substitute all occurences of string FROM by string TO in *STRINGP. *STRINGP
+ must come from xrealloc-compatible allocator and it may be updated. FROM
+ needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be
+ located at the start or end of *STRINGP. */
+
+void
+substitute_path_component (char **stringp, const char *from, const char *to)
+{
+ char *string = *stringp, *s;
+ const size_t from_len = strlen (from);
+ const size_t to_len = strlen (to);
+
+ for (s = string;;)
+ {
+ s = strstr (s, from);
+ if (s == NULL)
+ break;
+
+ if ((s == string || IS_DIR_SEPARATOR (s[-1])
+ || s[-1] == DIRNAME_SEPARATOR)
+ && (s[from_len] == '\0' || IS_DIR_SEPARATOR (s[from_len])
+ || s[from_len] == DIRNAME_SEPARATOR))
+ {
+ char *string_new;
+
+ string_new = xrealloc (string, (strlen (string) + to_len + 1));
+
+ /* Relocate the current S pointer. */
+ s = s - string + string_new;
+ string = string_new;
+
+ /* Replace from by to. */
+ memmove (&s[to_len], &s[from_len], strlen (&s[from_len]) + 1);
+ memcpy (s, to, to_len);
+
+ s += to_len;
+ }
+ else
+ s++;
+ }
+
+ *stringp = string;
+}
+
+#ifdef HAVE_WAITPID
+
+#ifdef SIGALRM
+
+/* SIGALRM handler for waitpid_with_timeout. */
+
+static void
+sigalrm_handler (int signo)
+{
+ /* Nothing to do. */
+}
+
+#endif
+
+/* Wrapper to wait for child PID to die with TIMEOUT.
+ TIMEOUT is the time to stop waiting in seconds.
+ If TIMEOUT is zero, pass WNOHANG to waitpid.
+ Returns PID if it was successfully waited for, otherwise -1.
+
+ Timeouts are currently implemented with alarm and SIGALRM.
+ If the host does not support them, this waits "forever".
+ It would be odd though for a host to have waitpid and not SIGALRM. */
+
+pid_t
+wait_to_die_with_timeout (pid_t pid, int *status, int timeout)
+{
+ pid_t waitpid_result;
+
+ gdb_assert (pid > 0);
+ gdb_assert (timeout >= 0);
+
+ if (timeout > 0)
+ {
+#ifdef SIGALRM
+#if defined (HAVE_SIGACTION) && defined (SA_RESTART)
+ struct sigaction sa, old_sa;
+
+ sa.sa_handler = sigalrm_handler;
+ sigemptyset (&sa.sa_mask);
+ sa.sa_flags = 0;
+ sigaction (SIGALRM, &sa, &old_sa);
+#else
+ void (*ofunc) ();
+
+ ofunc = (void (*)()) signal (SIGALRM, sigalrm_handler);
+#endif
+
+ alarm (timeout);
+#endif
+
+ waitpid_result = waitpid (pid, status, 0);
+
+#ifdef SIGALRM
+ alarm (0);
+#if defined (HAVE_SIGACTION) && defined (SA_RESTART)
+ sigaction (SIGALRM, &old_sa, NULL);
+#else
+ signal (SIGALRM, ofunc);
+#endif
+#endif
+ }
+ else
+ waitpid_result = waitpid (pid, status, WNOHANG);
+
+ if (waitpid_result == pid)
+ return pid;
+ else
+ return -1;
+}
+
+#endif /* HAVE_WAITPID */
+
+/* Provide fnmatch compatible function for FNM_FILE_NAME matching of host files.
+ Both FNM_FILE_NAME and FNM_NOESCAPE must be set in FLAGS.
+
+ It handles correctly HAVE_DOS_BASED_FILE_SYSTEM and
+ HAVE_CASE_INSENSITIVE_FILE_SYSTEM. */
+
+int
+gdb_filename_fnmatch (const char *pattern, const char *string, int flags)
+{
+ gdb_assert ((flags & FNM_FILE_NAME) != 0);
+
+ /* It is unclear how '\' escaping vs. directory separator should coexist. */
+ gdb_assert ((flags & FNM_NOESCAPE) != 0);
+
+#ifdef HAVE_DOS_BASED_FILE_SYSTEM
+ {
+ char *pattern_slash, *string_slash;
+
+ /* Replace '\' by '/' in both strings. */
+
+ pattern_slash = alloca (strlen (pattern) + 1);
+ strcpy (pattern_slash, pattern);
+ pattern = pattern_slash;
+ for (; *pattern_slash != 0; pattern_slash++)
+ if (IS_DIR_SEPARATOR (*pattern_slash))
+ *pattern_slash = '/';
+
+ string_slash = alloca (strlen (string) + 1);
+ strcpy (string_slash, string);
+ string = string_slash;
+ for (; *string_slash != 0; string_slash++)
+ if (IS_DIR_SEPARATOR (*string_slash))
+ *string_slash = '/';
+ }
+#endif /* HAVE_DOS_BASED_FILE_SYSTEM */
+
+#ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM
+ flags |= FNM_CASEFOLD;
+#endif /* HAVE_CASE_INSENSITIVE_FILE_SYSTEM */
+
+ return fnmatch (pattern, string, flags);
+}
+
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern initialize_file_ftype _initialize_utils;
+
+void
+_initialize_utils (void)
+{
+ add_internal_problem_command (&internal_error_problem);
+ add_internal_problem_command (&internal_warning_problem);
+ add_internal_problem_command (&demangler_warning_problem);
+}
projects / deliverable / binutils-gdb.git / blobdiff