https://sourceware.org/bugzilla/show_bug.cgi?id=21174
--- Comment #3 from Thommy Jakobsson <thommyj at gmail dot com> --- (In reply to Mark Wielaard from comment #1) > There is no good way to tell. It could happen if the function calls itself > (although you would expect the pc to be different). I did check the assembler code for one case, and couldn't find anything special, no calling of itself (although I didn't really know what to search for either so I might have missed something =) ). Checking the code for the specific example I pasted here it seems to be a return address for another call. See attached file. > How does perf call the libdw getframe function? The actual call looks like this err = dwfl_getthread_frames(ui.dwfl, thread->tid, frame_callback, &ui); but I assume that you want some specific information? The entire wrapper around libdw can be found here http://lxr.free-electrons.com/source/tools/perf/util/unwind-libdw.c?v=4.4 > What does the CFI look like at that address? How can I find this out? dwarfdump? BR, Thommy Jakobsson -- You are receiving this mail because: You are on the CC list for the bug.
