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- /* Cell-based print utility routines for GDB, the GNU debugger.
- Copyright (C) 1986-2022 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 3 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- 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, see <http://www.gnu.org/licenses/>. */
- #include "common-defs.h"
- #include "print-utils.h"
- /* Temporary storage using circular buffer. */
- /* Number of cells in the circular buffer. */
- #define NUMCELLS 16
- /* Return the next entry in the circular buffer. */
- char *
- get_print_cell (void)
- {
- static char buf[NUMCELLS][PRINT_CELL_SIZE];
- static int cell = 0;
- if (++cell >= NUMCELLS)
- cell = 0;
- return buf[cell];
- }
- static char *
- decimal2str (const 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_print_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, PRINT_CELL_SIZE, "%s%0*lu", sign, width, temp[0]);
- break;
- case 2:
- xsnprintf (str, PRINT_CELL_SIZE, "%s%0*lu%09lu", sign, width,
- temp[1], temp[0]);
- break;
- case 3:
- xsnprintf (str, PRINT_CELL_SIZE, "%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_print_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, PRINT_CELL_SIZE, "%*o", width, 0);
- else
- xsnprintf (str, PRINT_CELL_SIZE, "0%0*lo", width, temp[0]);
- break;
- case 2:
- xsnprintf (str, PRINT_CELL_SIZE, "0%0*lo%010lo", width, temp[1], temp[0]);
- break;
- case 3:
- xsnprintf (str, PRINT_CELL_SIZE, "0%0*lo%010lo%010lo", width,
- temp[2], temp[1], temp[0]);
- break;
- default:
- internal_error (__FILE__, __LINE__,
- _("failed internal consistency check"));
- }
- return str;
- }
- /* See print-utils.h. */
- char *
- pulongest (ULONGEST u)
- {
- return decimal2str ("", u, 0);
- }
- /* See print-utils.h. */
- 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;
- /* See print-utils.h. */
- char *
- phex (ULONGEST l, int sizeof_l)
- {
- char *str;
- switch (sizeof_l)
- {
- case 8:
- str = get_print_cell ();
- xsnprintf (str, PRINT_CELL_SIZE, "%08lx%08lx",
- (unsigned long) (l >> thirty_two),
- (unsigned long) (l & 0xffffffff));
- break;
- case 4:
- str = get_print_cell ();
- xsnprintf (str, PRINT_CELL_SIZE, "%08lx", (unsigned long) l);
- break;
- case 2:
- str = get_print_cell ();
- xsnprintf (str, PRINT_CELL_SIZE, "%04x", (unsigned short) (l & 0xffff));
- break;
- case 1:
- str = get_print_cell ();
- xsnprintf (str, PRINT_CELL_SIZE, "%02x", (unsigned short) (l & 0xff));
- break;
- default:
- str = phex (l, sizeof (l));
- break;
- }
- return str;
- }
- /* See print-utils.h. */
- 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_print_cell ();
- if (high == 0)
- xsnprintf (str, PRINT_CELL_SIZE, "%lx",
- (unsigned long) (l & 0xffffffff));
- else
- xsnprintf (str, PRINT_CELL_SIZE, "%lx%08lx", high,
- (unsigned long) (l & 0xffffffff));
- break;
- }
- case 4:
- str = get_print_cell ();
- xsnprintf (str, PRINT_CELL_SIZE, "%lx", (unsigned long) l);
- break;
- case 2:
- str = get_print_cell ();
- xsnprintf (str, PRINT_CELL_SIZE, "%x", (unsigned short) (l & 0xffff));
- break;
- case 1:
- str = get_print_cell ();
- xsnprintf (str, PRINT_CELL_SIZE, "%x", (unsigned short) (l & 0xff));
- break;
- default:
- str = phex_nz (l, sizeof (l));
- break;
- }
- return str;
- }
- /* See print-utils.h. */
- char *
- hex_string (LONGEST num)
- {
- char *result = get_print_cell ();
- xsnprintf (result, PRINT_CELL_SIZE, "0x%s", phex_nz (num, sizeof (num)));
- return result;
- }
- /* See print-utils.h. */
- char *
- hex_string_custom (LONGEST num, int width)
- {
- char *result = get_print_cell ();
- char *result_end = result + PRINT_CELL_SIZE - 1;
- const char *hex = phex_nz (num, sizeof (num));
- int hex_len = strlen (hex);
- if (hex_len > width)
- width = hex_len;
- if (width + 2 >= PRINT_CELL_SIZE)
- 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;
- }
- /* See print-utils.h. */
- 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"));
- }
- }
- /* See print-utils.h. */
- const char *
- core_addr_to_string (const CORE_ADDR addr)
- {
- char *str = get_print_cell ();
- strcpy (str, "0x");
- strcat (str, phex (addr, sizeof (addr)));
- return str;
- }
- /* See print-utils.h. */
- const char *
- core_addr_to_string_nz (const CORE_ADDR addr)
- {
- char *str = get_print_cell ();
- strcpy (str, "0x");
- strcat (str, phex_nz (addr, sizeof (addr)));
- return str;
- }
- /* See print-utils.h. */
- const char *
- host_address_to_string_1 (const void *addr)
- {
- char *str = get_print_cell ();
- xsnprintf (str, PRINT_CELL_SIZE, "0x%s",
- phex_nz ((uintptr_t) addr, sizeof (addr)));
- return str;
- }
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