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[stage2] Add "hexdump"
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2 changed files with 38 additions and 0 deletions
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@ -6,6 +6,8 @@
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#include "panic_color.h"
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#include "timers.h"
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#include <stdio.h>
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#include <inttypes.h>
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__attribute__ ((noreturn)) void panic(uint32_t code) {
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/* Set Panic Code for NX_BOOTLOADER. */
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@ -38,3 +40,37 @@ __attribute__((noinline)) bool overlaps(uint64_t as, uint64_t ae, uint64_t bs, u
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return true;
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return false;
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}
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/* Adapted from https://gist.github.com/ccbrown/9722406 */
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void hexdump(const void* data, size_t size, uintptr_t addrbase) {
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const uint8_t *d = (const uint8_t *)data;
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char ascii[17];
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ascii[16] = '\0';
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for (size_t i = 0; i < size; i++) {
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if (i % 16 == 0) {
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printf("%0*" PRIXPTR ": | ", 2 * sizeof(addrbase), addrbase + i);
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}
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printf("%02X ", d[i]);
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if (d[i] >= ' ' && d[i] <= '~') {
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ascii[i % 16] = d[i];
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} else {
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ascii[i % 16] = '.';
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}
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if ((i+1) % 8 == 0 || i+1 == size) {
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printf(" ");
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if ((i+1) % 16 == 0) {
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printf("| %s \n", ascii);
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} else if (i+1 == size) {
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ascii[(i+1) % 16] = '\0';
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if ((i+1) % 16 <= 8) {
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printf(" ");
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}
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for (size_t j = (i+1) % 16; j < 16; j++) {
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printf(" ");
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}
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printf("| %s \n", ascii);
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}
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}
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}
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}
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@ -102,6 +102,8 @@ static inline bool check_32bit_address_range_in_program(uintptr_t addr, size_t s
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overlaps_a(start, end, __start__, __end__);
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}
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void hexdump(const void* data, size_t size, uintptr_t addrbase);
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void panic(uint32_t code);
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void generic_panic(void);
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void panic_predefined(uint32_t which);
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