/* SPDX-License-Identifier: GPL-2.0-or-later */ #include <console/console.h> #include <ctype.h> #include <lib.h> void hexdump(const void *memory, size_t length) { size_t i, j; uint8_t *line; int all_zero = 0; int all_one = 0; size_t num_bytes; for (i = 0; i < length; i += 16) { num_bytes = MIN(length - i, 16); line = ((uint8_t *)memory) + i; all_zero++; all_one++; for (j = 0; j < num_bytes; j++) { if (line[j] != 0) { all_zero = 0; break; } } for (j = 0; j < num_bytes; j++) { if (line[j] != 0xff) { all_one = 0; break; } } if ((all_zero < 2) && (all_one < 2)) { printk(BIOS_DEBUG, "%p:", memory + i); for (j = 0; j < num_bytes; j++) printk(BIOS_DEBUG, " %02x", line[j]); for (; j < 16; j++) printk(BIOS_DEBUG, " "); printk(BIOS_DEBUG, " "); for (j = 0; j < num_bytes; j++) printk(BIOS_DEBUG, "%c", isprint(line[j]) ? line[j] : '.'); printk(BIOS_DEBUG, "\n"); } else if ((all_zero == 2) || (all_one == 2)) { printk(BIOS_DEBUG, "...\n"); } } }