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debugger: Add dumpmem command

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kwolekr 2024-12-02 05:41:24 -05:00
parent 198eeaa08c
commit 16f138052c
2 changed files with 44 additions and 0 deletions
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3
README
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@ -174,6 +174,9 @@ write
write <addr> w <value> Write a word value (4 bytes) to <addr> write <addr> w <value> Write a word value (4 bytes) to <addr>
write <addr> d <value> Write a double-word value (8 bytes) to <addr> write <addr> d <value> Write a double-word value (8 bytes) to <addr>
dumpmem <addr> <n> <filename>
Dump <n> bytes of RDRAM memory starting at <addr> to <filename>.
translate translate
Translates virtual memory addresses to physical memory addresses. Memory Translates virtual memory addresses to physical memory addresses. Memory
read/write breakpoints must operate on physical addresses, in contrast to the read/write breakpoints must operate on physical addresses, in contrast to the

41
src/debugger.c
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@ -346,6 +346,47 @@ int debugger_loop(void *arg) {
printf("\n"); printf("\n");
} }
} }
else if (strncmp(input, "dumpmem", 7) == 0) {
uint32_t addr;
uint32_t len;
char filename[64];
uint8_t *membase;
FILE *f;
if (sscanf(input, "dumpmem %x 0x%x %63s", &addr, &len, filename) != 3 &&
sscanf(input, "dumpmem %x %u %63s", &addr, &len, filename) != 3) {
printf("Improperly formatted dumpmem command: '%s'\n", input);
continue;
}
filename[sizeof(filename) - 1] = '\0';
addr = (*DebugVirtualToPhysical)(addr);
if (addr >= 0x800000) {
printf("Requested address must be within RDRAM region\n");
continue;
}
// 8 MB is the upper limit
if (len > 0x800000 - addr)
len = 0x800000 - addr;
membase = (*DebugMemGetPointer)(M64P_DBG_PTR_RDRAM);
f = fopen(filename, "wb");
if (f == NULL) {
printf("Could not open file '%s' for write\n", filename);
continue;
}
fwrite(membase + addr, len, 1, f);
fclose(f);
printf("Dumped 0x%08x bytes starting at 0x%08x to %s\n",
len, addr, filename);
}
else if (strncmp(input, "translate", 9) == 0) { else if (strncmp(input, "translate", 9) == 0) {
uint32_t virt_addr, phys_addr; uint32_t virt_addr, phys_addr;
if (sscanf(input, "translate %i", &virt_addr) == 1) { if (sscanf(input, "translate %i", &virt_addr) == 1) {