Breakpad processor: Support AMD64 stack unwinding driven by DWARF CFI.

This adds support for 'STACK CFI' records (DWARF CFI) to the AMD64
stack walker. This is necessary for the stack trace to include any
frames other than the youngest. Unit tests are included.

a=jimblandy, r=mmentovai


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@554 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
jimblandy
2010-03-16 16:49:53 +00:00
parent c609f474a9
commit e7e1e1ebf5
7 changed files with 631 additions and 53 deletions

View File

@@ -196,6 +196,16 @@ static void PrintStack(const CallStack *stack, const string &cpu) {
const StackFrameAMD64 *frame_amd64 =
reinterpret_cast<const StackFrameAMD64*>(frame);
if (frame_amd64->context_validity & StackFrameAMD64::CONTEXT_VALID_RBX)
sequence = PrintRegister("rbx", frame_amd64->context.rbx, sequence);
if (frame_amd64->context_validity & StackFrameAMD64::CONTEXT_VALID_R12)
sequence = PrintRegister("r12", frame_amd64->context.r12, sequence);
if (frame_amd64->context_validity & StackFrameAMD64::CONTEXT_VALID_R13)
sequence = PrintRegister("r13", frame_amd64->context.r13, sequence);
if (frame_amd64->context_validity & StackFrameAMD64::CONTEXT_VALID_R14)
sequence = PrintRegister("r14", frame_amd64->context.r14, sequence);
if (frame_amd64->context_validity & StackFrameAMD64::CONTEXT_VALID_R15)
sequence = PrintRegister("r15", frame_amd64->context.r15, sequence);
if (frame_amd64->context_validity & StackFrameAMD64::CONTEXT_VALID_RIP)
sequence = PrintRegister("rip", frame_amd64->context.rip, sequence);
if (frame_amd64->context_validity & StackFrameAMD64::CONTEXT_VALID_RSP)