i2p/haiku-beta6
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Improved stack tracer, traces over iframes.

Browse Source
This commit is contained in:
Alex Smith
2012-07-05 16:11:11 +01:00
parent 898b29e362
commit 1671cfdf2c
1 changed files with 52 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/system/kernel/arch/x86/64/stubs.cpp
+52 -6
View File
@@ -91,6 +91,41 @@ struct stack_frame {
}; };
static bool
is_iframe(addr_t frame)
{
addr_t previousFrame = *(addr_t*)frame;
return ((previousFrame & ~IFRAME_TYPE_MASK) == 0 && previousFrame != 0);
}
static void
print_iframe(struct iframe* frame)
{
bool isUser = IFRAME_IS_USER(frame);
kprintf("%s iframe at %p (end = %p)\n", isUser ? "user" : "kernel", frame,
isUser ? (uint64*)(frame + 1) : &frame->user_rsp);
kprintf(" rax 0x%-16lx rbx 0x%-16lx rcx 0x%-16lx rdx 0x%lx\n",
frame->rax, frame->rbx, frame->rcx, frame->rdx);
kprintf(" rsi 0x%-16lx rdi 0x%-16lx rbp 0x%-16lx r8 0x%lx\n",
frame->rsi, frame->rdi, frame->rbp, frame->r8);
kprintf(" r9 0x%-16lx r10 0x%-16lx r11 0x%-16lx r12 0x%lx\n",
frame->r9, frame->r10, frame->r11, frame->r12);
kprintf(" r13 0x%-16lx r14 0x%-16lx r15 0x%-16lx\n",
frame->r13, frame->r14, frame->r15);
kprintf(" rip 0x%-16lx rflags 0x%-16lx", frame->rip, frame->flags);
if (isUser) {
// from user space
kprintf("user rsp 0x%lx", frame->user_rsp);
}
kprintf("\n");
kprintf(" vector: 0x%lx, error code: 0x%lx\n", frame->vector,
frame->error_code);
}
void void
arch_debug_stack_trace(void) arch_debug_stack_trace(void)
{ {
@@ -102,14 +137,25 @@ arch_debug_stack_trace(void)
if (rbp == 0) if (rbp == 0)
break; break;
stack_frame* frame = (stack_frame*)rbp; if (is_iframe(rbp)) {
if (frame->return_address == 0) struct iframe* frame = (struct iframe*)rbp;
break; print_iframe(frame);
kprintf("%2d %016lx (+%4ld) %016lx\n", callIndex, rbp,
frame->rbp - rbp, frame->rip);
kprintf("%2d %016lx (+%4ld) %016lx\n", callIndex, rbp, rbp = frame->rbp;
(addr_t)frame->previous - rbp, frame->return_address); } else {
stack_frame* frame = (stack_frame*)rbp;
if (frame->return_address == 0)
break;
rbp = (addr_t)frame->previous; kprintf("%2d %016lx (+%4ld) %016lx\n", callIndex, rbp,
(frame->previous != NULL)
? (addr_t)frame->previous - rbp : 0,
frame->return_address);
rbp = (addr_t)frame->previous;
}
} }
} }