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Print symbol information in a stack trace.

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This commit is contained in:
Alex Smith 2012-07-09 11:54:03 +01:00
parent 3b802628b8
commit ee7aba5117
1 changed files with 60 additions and 7 deletions
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67
src/system/kernel/arch/x86/64/stubs.cpp
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@ -21,6 +21,7 @@
#include <team.h>
#include <thread.h>
#include <vm/vm.h>
#include <vm/VMAddressSpace.h>
#include <boot/kernel_args.h>
@ -129,12 +130,66 @@ print_iframe(struct iframe* frame)
}
static status_t
lookup_symbol(addr_t address, addr_t* _baseAddress, const char** _symbolName,
const char** _imageName, bool* _exactMatch)
{
status_t status = B_ENTRY_NOT_FOUND;
if (IS_KERNEL_ADDRESS(address)) {
status = elf_debug_lookup_symbol_address(address, _baseAddress,
_symbolName, _imageName, _exactMatch);
}
return status;
}
static void
print_stack_frame(addr_t rip, addr_t rbp, addr_t nextRbp, int32 callIndex)
{
const char* symbol;
const char* image;
addr_t baseAddress;
bool exactMatch;
status_t status;
addr_t diff;
diff = nextRbp - rbp;
// kernel space/user space switch
if (diff & (1L << 63))
diff = 0;
status = lookup_symbol(rip, &baseAddress, &symbol, &image, &exactMatch);
kprintf("%2d %016lx (+%4ld) %016lx ", callIndex, rbp, diff, rip);
if (status == B_OK) {
if (symbol != NULL)
kprintf("<%s>:%s%s", image, symbol, exactMatch ? "" : " (nearest)");
else
kprintf("<%s@%p>:unknown", image, (void*)baseAddress);
kprintf(" + 0x%04lx\n", rip - baseAddress);
} else {
VMArea *area = VMAddressSpace::Kernel()->LookupArea(rip);
if (area != NULL) {
kprintf("%d:%s@%p + %#lx\n", area->id, area->name,
(void*)area->Base(), rip - area->Base());
} else
kprintf("\n");
}
}
void
arch_debug_stack_trace(void)
{
addr_t rbp = x86_read_ebp();
kprintf("frame caller\n");
kprintf("frame caller <image>:function"
" + offset\n");
for (int32 callIndex = 0;; callIndex++) {
if (rbp == 0)
@ -143,8 +198,7 @@ arch_debug_stack_trace(void)
if (is_iframe(rbp)) {
struct iframe* frame = (struct iframe*)rbp;
print_iframe(frame);
kprintf("%2d %016lx (+%4ld) %016lx\n", callIndex, rbp,
frame->rbp - rbp, frame->rip);
print_stack_frame(frame->rip, rbp, frame->rbp, callIndex);
rbp = frame->rbp;
} else {
@ -152,10 +206,9 @@ arch_debug_stack_trace(void)
if (frame->return_address == 0)
break;
kprintf("%2d %016lx (+%4ld) %016lx\n", callIndex, rbp,
(frame->previous != NULL)
? (addr_t)frame->previous - rbp : 0,
frame->return_address);
print_stack_frame(frame->return_address, rbp,
(frame->previous != NULL) ? (addr_t)frame->previous : rbp,
callIndex);
rbp = (addr_t)frame->previous;
}