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misc: We don't stacktrace on UEFI

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This commit is contained in:
mintsuki 2021-03-13 03:40:17 +01:00
parent 63bccd9b0a
commit 23838a4e84
2 changed files with 14 additions and 8 deletions
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1
stage23/lib/trace.h
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@ -3,7 +3,6 @@
#include <stddef.h>
char *trace_address(size_t *off, size_t addr);
void print_stacktrace(size_t *base_ptr);
#endif

21
stage23/lib/trace.s2.c
View File

@ -8,17 +8,17 @@
#include <fs/file.h>
#include <mm/pmm.h>
#if defined (bios)
extern symbol stage2_map, full_map;
char *trace_address(size_t *off, size_t addr) {
static char *trace_address(size_t *off, size_t addr) {
char *limine_map;
#if defined (bios)
if (!stage3_loaded)
limine_map = stage2_map;
else
limine_map = full_map;
#endif
uintptr_t prev_addr = 0;
char *prev_sym = NULL;
@ -38,11 +38,7 @@ char *trace_address(size_t *off, size_t addr) {
void print_stacktrace(size_t *base_ptr) {
if (base_ptr == NULL) {
asm volatile (
#if defined (bios)
"mov %0, ebp"
#elif defined (uefi)
"mov %0, rbp"
#endif
: "=g"(base_ptr)
:: "memory"
);
@ -65,3 +61,14 @@ void print_stacktrace(size_t *base_ptr) {
}
print("End of trace.\n");
}
#endif
#if defined (uefi)
void print_stacktrace(size_t *base_ptr) {
(void)base_ptr;
print("Stacktrace unavailable when using UEFI.\n");
}
#endif