On 11/20/2012 02:14 PM, Peter Bergner wrote: > Doesn't this save us, since the bottom frame in the backtrace will always > be an ASAN functionand the frame we're interested in will always be higher > in the backtrace? > > I guess I'm wondering, in this specific use case, do you think using > the CFA to compare against is safe or not?
Yes it saves us. I believe using the value of __builtin_dwarf_cfa from the outermost ASAN function will reliably match the SP value of the interesting user function outer of ASAN. r~
