/* General utility routines for GDB, the GNU debugger.
- Copyright (C) 1986-2013 Free Software Foundation, Inc.
+ Copyright (C) 1986-2014 Free Software Foundation, Inc.
This file is part of GDB.
#include "defs.h"
#include "dyn-string.h"
-#include "gdb_assert.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"
#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 "inferior.h" /* for signed_pointer_to_address */
-#include <sys/param.h> /* For MAXPATHLEN */
-
#include "gdb_curses.h"
#include "readline/readline.h"
extern void free ();
#endif
-/* readline defines this. */
-#undef savestring
-
void (*deprecated_error_begin_hook) (void);
/* Prototypes for local functions */
int job_control;
-#ifndef HAVE_PYTHON
-/* Nonzero means a quit has been requested. */
-
-int quit_flag;
-#endif /* HAVE_PYTHON */
-
/* Nonzero means quit immediately if Control-C is typed now, rather
than waiting until QUIT is executed. Be careful in setting this;
code which executes with immediate_quit set has to be very careful
int immediate_quit;
-#ifndef HAVE_PYTHON
-
-/* Clear the quit flag. */
-
-void
-clear_quit_flag (void)
-{
- quit_flag = 0;
-}
-
-/* Set the quit flag. */
-
-void
-set_quit_flag (void)
-{
- quit_flag = 1;
-}
-
-/* Return true if the quit flag has been set, false otherwise. */
-
-int
-check_quit_flag (void)
-{
- /* This is written in a particular way to avoid races. */
- if (quit_flag)
- {
- quit_flag = 0;
- return 1;
- }
-
- return 0;
-}
-
-#endif /* HAVE_PYTHON */
-
/* 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.) */
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: ";
(void *) (uintptr_t) saved_lang);
}
+/* Helper function for make_cleanup_clear_parser_state. */
+
+static void
+do_clear_parser_state (void *ptr)
+{
+ struct parser_state **p = (struct parser_state **) ptr;
+
+ *p = NULL;
+}
+
+/* Clean (i.e., set to NULL) the parser state variable P. */
+
+struct cleanup *
+make_cleanup_clear_parser_state (struct parser_state **p)
+{
+ return make_cleanup (do_clear_parser_state, (void *) p);
+}
+
/* This function is useful for cleanups.
Do
*location = NULL;
}
}
-
-/* If nonzero, display time usage both at startup and for each command. */
-
-static int display_time;
-
-/* If nonzero, display space usage both at startup and for each command. */
-
-static int display_space;
-
-/* Records a run time and space usage to be used as a base for
- reporting elapsed time or change in space. In addition,
- the msg_type field indicates whether the saved time is from the
- beginning of GDB execution (0) or the beginning of an individual
- command execution (1). */
-struct cmd_stats
-{
- int msg_type;
- long start_cpu_time;
- struct timeval start_wall_time;
- long start_space;
-};
-
-/* Set whether to display time statistics to NEW_VALUE (non-zero
- means true). */
-void
-set_display_time (int new_value)
-{
- display_time = new_value;
-}
-
-/* Set whether to display space statistics to NEW_VALUE (non-zero
- means true). */
-void
-set_display_space (int new_value)
-{
- display_space = new_value;
-}
-
-/* As indicated by display_time and display_space, report GDB's elapsed time
- and space usage from the base time and space provided in ARG, which
- must be a pointer to a struct cmd_stat. This function is intended
- to be called as a cleanup. */
-static void
-report_command_stats (void *arg)
-{
- struct cmd_stats *start_stats = (struct cmd_stats *) arg;
- int msg_type = start_stats->msg_type;
-
- if (display_time)
- {
- long cmd_time = get_run_time () - start_stats->start_cpu_time;
- struct timeval now_wall_time, delta_wall_time;
-
- gettimeofday (&now_wall_time, NULL);
- timeval_sub (&delta_wall_time,
- &now_wall_time, &start_stats->start_wall_time);
-
- /* Subtract time spend in prompt_for_continue from walltime. */
- timeval_sub (&delta_wall_time,
- &delta_wall_time, &prompt_for_continue_wait_time);
-
- printf_unfiltered (msg_type == 0
- ? _("Startup time: %ld.%06ld (cpu), %ld.%06ld (wall)\n")
- : _("Command execution time: %ld.%06ld (cpu), %ld.%06ld (wall)\n"),
- cmd_time / 1000000, cmd_time % 1000000,
- (long) delta_wall_time.tv_sec,
- (long) delta_wall_time.tv_usec);
- }
-
- if (display_space)
- {
-#ifdef HAVE_SBRK
- char *lim = (char *) sbrk (0);
-
- long space_now = lim - lim_at_start;
- long space_diff = space_now - start_stats->start_space;
-
- printf_unfiltered (msg_type == 0
- ? _("Space used: %ld (%s%ld during startup)\n")
- : _("Space used: %ld (%s%ld for this command)\n"),
- space_now,
- (space_diff >= 0 ? "+" : ""),
- space_diff);
-#endif
- }
-}
-
-/* Create a cleanup that reports time and space used since its
- creation. Precise messages depend on MSG_TYPE:
- 0: Initial time/space
- 1: Individual command time/space. */
-struct cleanup *
-make_command_stats_cleanup (int msg_type)
-{
- static const struct timeval zero_timeval = { 0 };
- struct cmd_stats *new_stat = XMALLOC (struct cmd_stats);
-
-#ifdef HAVE_SBRK
- char *lim = (char *) sbrk (0);
- new_stat->start_space = lim - lim_at_start;
-#endif
-
- new_stat->msg_type = msg_type;
- new_stat->start_cpu_time = get_run_time ();
- gettimeofday (&new_stat->start_wall_time, NULL);
-
- /* Initalize timer to keep track of how long we waited for the user. */
- prompt_for_continue_wait_time = zero_timeval;
-
- return make_cleanup_dtor (report_command_stats, new_stat, xfree);
-}
\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. */
}
void
-error (const char *string, ...)
+error_stream (struct ui_file *stream)
{
- va_list args;
-
- va_start (args, string);
- throw_verror (GENERIC_ERROR, string, args);
- va_end (args);
-}
-
-/* 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. */
+ char *message = ui_file_xstrdup (stream, NULL);
-void
-vfatal (const char *string, va_list args)
-{
- throw_vfatal (string, args);
+ make_cleanup (xfree, message);
+ error (("%s"), message);
}
-void
-fatal (const char *string, ...)
-{
- va_list args;
+/* Emit a message and abort. */
- va_start (args, string);
- throw_vfatal (string, args);
- va_end (args);
-}
-
-void
-error_stream (struct ui_file *stream)
+static void ATTRIBUTE_NORETURN
+abort_with_message (const char *msg)
{
- char *message = ui_file_xstrdup (stream, NULL);
+ if (gdb_stderr == NULL)
+ fputs (msg, stderr);
+ else
+ fputs_unfiltered (msg, gdb_stderr);
- make_cleanup (xfree, message);
- error (("%s"), message);
+ abort (); /* NOTE: GDB has only three calls to abort(). */
}
/* Dump core trying to increase the core soft limit to hard limit first. */
-static void
+void
dump_core (void)
{
#ifdef HAVE_SETRLIMIT
}
/* Check whether GDB will be able to dump core using the dump_core
- function. */
+ 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. */
-static int
-can_dump_core (const char *reason)
+int
+can_dump_core (enum resource_limit_kind limit_kind)
{
#ifdef HAVE_GETRLIMIT
struct rlimit rlim;
if (getrlimit (RLIMIT_CORE, &rlim) != 0)
return 1;
- if (rlim.rlim_max == 0)
+ switch (limit_kind)
{
- fprintf_unfiltered (gdb_stderr,
- _("%s\nUnable to dump core, use `ulimit -c"
- " unlimited' before executing GDB next time.\n"),
- reason);
- return 0;
+ 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);
+}
+
+/* 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. */
struct internal_problem
{
const char *name;
+ int user_settable_should_quit;
const char *should_quit;
+ int user_settable_should_dump_core;
const char *should_dump_core;
};
int quit_p;
int dump_core_p;
char *reason;
+ struct cleanup *cleanup = make_cleanup (null_cleanup, NULL);
/* Don't allow infinite error/warning recursion. */
{
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;
/* Newer GLIBC versions put the warn_unused_result attribute
}
}
- /* 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
make_cleanup (xfree, reason);
}
+ /* Fall back to abort_with_message if gdb_stderr is not set up. */
+ if (gdb_stderr == NULL)
+ {
+ fputs (reason, stderr);
+ abort_with_message ("\n");
+ }
+
+ /* 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)
{
/* 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)
- {
- /* Emit the message and quit. */
- fputs_unfiltered (reason, gdb_stderr);
- fputs_unfiltered ("\n", gdb_stderr);
- quit_p = 1;
- }
+ if (!confirm || !filtered_printing_initialized ())
+ quit_p = 1;
else
quit_p = query (_("%s\nQuit this debugging session? "), reason);
}
else
internal_error (__FILE__, __LINE__, _("bad switch"));
+ 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 (reason))
+ 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
}
}
else if (problem->should_dump_core == internal_problem_yes)
- dump_core_p = can_dump_core (reason);
+ dump_core_p = can_dump_core_warn (LIMIT_MAX, reason);
else if (problem->should_dump_core == internal_problem_no)
dump_core_p = 0;
else
}
dejavu = 0;
+ do_cleanups (cleanup);
}
static struct internal_problem internal_error_problem = {
- "internal-error", internal_problem_ask, internal_problem_ask
+ "internal-error", 1, internal_problem_ask, 1, internal_problem_ask
};
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);
+ throw_quit (_("Command aborted."));
}
+static struct internal_problem internal_warning_problem = {
+ "internal-warning", 1, internal_problem_ask, 1, internal_problem_ask
+};
+
void
-internal_error (const char *file, int line, const char *string, ...)
+internal_vwarning (const char *file, int line, const char *fmt, va_list ap)
{
- va_list ap;
-
- va_start (ap, string);
- internal_verror (file, line, string, ap);
- va_end (ap);
+ internal_vproblem (&internal_warning_problem, file, line, fmt, ap);
}
-static struct internal_problem internal_warning_problem = {
- "internal-warning", internal_problem_ask, internal_problem_ask
+static struct internal_problem demangler_warning_problem = {
+ "demangler-warning", 1, internal_problem_ask, 0, internal_problem_no
};
void
-internal_vwarning (const char *file, int line, const char *fmt, va_list ap)
+demangler_vwarning (const char *file, int line, const char *fmt, va_list ap)
{
- internal_vproblem (&internal_warning_problem, file, line, fmt, 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);
}
(char *) NULL),
0/*allow-unknown*/, &maintenance_show_cmdlist);
- 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);
-
- 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);
+ 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);
+ xfree (set_doc);
+ xfree (show_doc);
+ }
}
-/* 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. */
+/* Return a newly allocated string, containing the PREFIX followed
+ by the system error message for errno (separated by a colon).
-void
-perror_with_name (const char *string)
+ 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. */
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
}
return orglen;
}
-/* Make a copy of the string at PTR with LEN characters
- (and add a null character at the end in the copy).
- Uses malloc to get the space. Returns the address of the copy. */
-
-char *
-savestring (const char *ptr, size_t len)
-{
- char *p = (char *) xmalloc (len + 1);
-
- memcpy (p, ptr, len);
- p[len] = 0;
- return p;
-}
-
void
print_spaces (int n, struct ui_file *file)
{
return result;
}
+/* 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. */
+
+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);
+
+ make_cleanup (xfree, err);
+ error (("%s: %s"), message, err);
+ }
+
+ return make_regfree_cleanup (pattern);
+}
+
\f
/* This function supports the query, nquery, and yquery functions.
cleanups = make_cleanup_obstack_free (&host_data);
convert_between_encodings (target_charset (gdbarch), host_charset (),
- &the_char, 1, 1, &host_data, translit_none);
+ (gdb_byte *) &the_char, 1, 1,
+ &host_data, translit_none);
if (obstack_object_size (&host_data) == 1)
{
after the zeros. A value of 0 does not mean end of string. */
int
-parse_escape (struct gdbarch *gdbarch, char **string_ptr)
+parse_escape (struct gdbarch *gdbarch, const char **string_ptr)
{
int target_char = -2; /* Initialize to avoid GCC warnings. */
int c = *(*string_ptr)++;
/* 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 *),
}
else
{
- if (c == '\\' || c == quoter)
+ if (quoter != 0 && (c == '\\' || c == quoter))
do_fputs ("\\", stream);
do_fprintf (stream, "%c", c);
}
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;
}
set_width ();
}
+/* 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
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.
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. */
void
initialize_utils (void)
{
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);
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);
&setdebuglist, &showdebuglist);
}
-/* 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];
-}
-
const char *
paddress (struct gdbarch *gdbarch, CORE_ADDR addr)
{
return *addr_ap == *addr_bp;
}
-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])));
-
- 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)
-{
- 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;
-
- 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 *
-pulongest (ULONGEST u)
-{
- return decimal2str ("", u, 0);
-}
-
-char *
-plongest (LONGEST l)
-{
- if (l < 0)
- return decimal2str ("-", -l, 0);
- else
- return decimal2str ("", l, 0);
-}
-
-/* Eliminate warning from compiler on 32-bit systems. */
-static int thirty_two = 32;
-
-char *
-phex (ULONGEST l, int sizeof_l)
-{
- 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;
- }
-
- return str;
-}
-
-char *
-phex_nz (ULONGEST l, int sizeof_l)
-{
- char *str;
-
- 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)
-{
- char *str = get_cell ();
-
- strcpy (str, "0x");
- strcat (str, phex (addr, sizeof (addr)));
- return str;
-}
-
-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;
-}
-
/* Convert a string back into a CORE_ADDR. */
CORE_ADDR
string_to_core_addr (const char *my_string)
return addr;
}
-const char *
-host_address_to_string (const void *addr)
-{
- char *str = get_cell ();
-
- xsnprintf (str, CELLSIZE, "0x%s", phex_nz ((uintptr_t) addr, sizeof (addr)));
- return str;
-}
-
char *
gdb_realpath (const char *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)
+#if defined (HAVE_REALPATH) && defined (PATH_MAX)
{
-# 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
}
#endif /* HAVE_REALPATH */
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)
+#if defined (HAVE_REALPATH) && defined (_PC_PATH_MAX) && defined(HAVE_ALLOCA)
{
/* Find out the max path size. */
long path_max = pathconf ("/", _PC_PATH_MAX);
return xstrdup (filename);
}
+/* Return a copy of FILENAME, with its directory prefix canonicalized
+ by gdb_realpath. */
+
+char *
+gdb_realpath_keepfile (const char *filename)
+{
+ const char *base_name = lbasename (filename);
+ char *dir_name;
+ char *real_path;
+ char *result;
+
+ /* Extract the basename of filename, and return immediately
+ 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. */
+ strncpy (dir_name, filename, base_name - filename);
+ dir_name[base_name - filename] = '\000';
+
+#ifdef HAVE_DOS_BASED_FILE_SYSTEM
+ /* We need to be careful when filename is of the form 'd:foo', which
+ is equivalent of d:./foo, which is totally different from d:/foo. */
+ if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':')
+ {
+ dir_name[2] = '.';
+ dir_name[3] = '\000';
+ }
+#endif
+
+ /* Canonicalize the directory prefix, and build the resulting
+ 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);
+ else
+ 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). */
+
+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
align_up (ULONGEST v, int n)
{
return (v & -n);
}
+/* See utils.h. */
+
+LONGEST
+gdb_sign_extend (LONGEST value, int bit)
+{
+ gdb_assert (bit >= 1 && bit <= 8 * sizeof (LONGEST));
+
+ if (((value >> (bit - 1)) & 1) != 0)
+ {
+ LONGEST signbit = ((LONGEST) 1) << (bit - 1);
+
+ value = (value ^ signbit) - signbit;
+ }
+
+ return value;
+}
+
/* Allocation function for the libiberty hash table which uses an
obstack. The obstack is passed as DATA. */
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 ARGS parsed as a valid pid, or throw an error. */
int
-parse_pid_to_attach (char *args)
+parse_pid_to_attach (const char *args)
{
unsigned long pid;
char *dummy;
if (!args)
error_no_arg (_("process-id to attach"));
- dummy = args;
+ 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)])
{
add_internal_problem_command (&internal_error_problem);
add_internal_problem_command (&internal_warning_problem);
+ add_internal_problem_command (&demangler_warning_problem);
}
projects / platform / upstream / binutils.git / blobdiff