/* 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 "dyn-string.h"
#include "gdb_assert.h"
#include <ctype.h>
-#include "gdb_string.h"
+#include <string.h>
#include "gdb_wait.h"
#include "event-top.h"
#include "exceptions.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"
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.) */
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. */
&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)
{
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)
{