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Add panic/stack trace display on fb for real hardware debug

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xamidev
2026-03-10 09:48:14 +01:00
parent 6fc28806e2
commit b9c77a316a
3 changed files with 36 additions and 0 deletions
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15
src/debug/stacktrace.c
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@@ -1,9 +1,15 @@
#include <stdint.h>
#include "kernel.h"
extern struct init_status init;
void debug_stack_trace(unsigned int max_frames)
{
DEBUG("*** begin stack trace ***");
if (init.terminal)
{
printf("\r\n*** begin stack trace ***\r\n");
}
// Thanks GCC :)
uintptr_t* rbp = (uintptr_t*)__builtin_frame_address(0);
@@ -15,6 +21,11 @@ void debug_stack_trace(unsigned int max_frames)
const char* name = debug_find_symbol(rip, &offset);
DEBUG("[%u] <0x%p> (%s+0x%x)", frame, (void*)rip, name, offset);
if (init.terminal)
{
printf("[%u] <0x%p> (%s+0x%x)\r\n", frame, (void*)rip, name, offset);
}
uintptr_t* next_rbp = (uintptr_t*)rbp[0];
// invalid rbp or we're at the end
@@ -25,6 +36,10 @@ void debug_stack_trace(unsigned int max_frames)
rbp = next_rbp;
}
if (init.terminal)
{
printf("*** end stack trace ***");
}
DEBUG("*** end stack trace ***");
}