On 5 September 2013 15:05, Jean Pihet jean.pihet@newoldbits.com wrote: [..]
Here are the commands I have been using: perf record -g dwarf -- <binary to profile> perf report --sort symbol --call-graph --stdio
Ah, I failed to add the 'dwarf' after -g, however, in that case, my perf report segfaults:
#0 locate_debug_info (as=0xb6ea9144 <local_addr_space>, info=info@entry=0x83d6, addr=addr@entry=0, dlname=0x4a0000 <Address 0x4a0000 out of bounds>) at dwarf/Gfind_proc_info-lsb.c:295 #1 0xb6e9a9c6 in _Uarm_dwarf_find_debug_frame (found=found@entry=0, di_debug=di_debug@entry=0xbeff95b8, info=info@entry=0x83d6, ip=ip@entry=0) at dwarf/Gfind_proc_info-lsb.c:423 #2 0x0006f0e4 in find_proc_info (as=0x2c06a0, ip=33750, pi=0xbeffa8fc, need_unwind_info=1, arg=0xbeffe530) at util/unwind.c:339 #3 0xb6e98258 in fetch_proc_info (c=c@entry=0xbeffa4d4, ip=<optimised out>, need_unwind_info=need_unwind_info@entry=1) at dwarf/Gparser.c:422 #4 0xb6e99640 in uncached_dwarf_find_save_locs (c=0xbeffa4d4) at dwarf/Gparser.c:824 #5 _Uarm_dwarf_find_save_locs (c=c@entry=0xbeffa4d4) at dwarf/Gparser.c:849 #6 0xb6e9a034 in _Uarm_dwarf_step (c=c@entry=0xbeffa4d4) at dwarf/Gstep.c:34 #7 0xb6e95182 in _Uarm_step (cursor=cursor@entry=0xbeffa4d4) at arm/Gstep.c:177 #8 0x0006ed50 in get_entries (ui=ui@entry=0xbeffe530, cb=cb@entry=0x47599 <unwind_entry>, arg=arg@entry=0xb6b804c8) at util/unwind.c:573 #9 0x0006f324 in unwind__get_entries (cb=cb@entry=0x47599 <unwind_entry>, arg=0xb6b804c8, machine=machine@entry=0xf0544, thread=thread@entry=0x101860, sample_uregs=sample_uregs@entry=65535, data=data@entry=0xbeffe740) at util/unwind.c:608 #10 0x00049a96 in machine__resolve_callchain (machine=machine@entry=0xf0544, evsel=evsel@entry=0xf0b98, thread=0x101860, sample=sample@entry=0xbeffe740, parent=parent@entry=0xbeffe644) at util/machine.c:1262 #11 0x0001a43e in perf_evsel__add_hist_entry (machine=0xf0544, sample=0xbeffe740, al=0xbeffe640, evsel=0xf0b98) at builtin-report.c:256 #12 process_sample_event (tool=0xbeffeb68, event=0xb6b3c600, sample=0xbeffe740, evsel=0xf0b98, machine=0xf0544) at builtin-report.c:335 #13 0x0004b3ca in perf_session_deliver_event (session=session@entry=0xf0498, event=0xb6b3c600, sample=sample@entry=0xbeffe740, tool=tool@entry=0xbeffeb68, file_offset=file_offset@entry=161280) at util/session.c:873 #14 0x0004b8d0 in flush_sample_queue (s=s@entry=0xf0498, tool=tool@entry=0xbeffeb68) at util/session.c:521 #15 0x0004c974 in __perf_session__process_events (session=session@entry=0xf0498, data_offset=<optimised out>, data_size=data_size@entry=437976, file_size=438264, tool=tool@entry=0xbeffeb68) at util/session.c:1269 #16 0x0004cc5c in perf_session__process_events (self=self@entry=0xf0498, tool=tool@entry=0xbeffeb68) at util/session.c:1286 #17 0x0001b4b2 in __cmd_report (rep=0xbeffeb68) at builtin-report.c:513 #18 cmd_report (argc=0, argv=0xbefff6c8, prefix=<optimised out>) at builtin-report.c:957 #19 0x0000d80e in run_builtin (p=p@entry=0xaa548 <commands+84>, argc=argc@entry=2, argv=argv@entry=0xbefff6c8) at perf.c:319 #20 0x0000d28a in handle_internal_command (argv=0xbefff6c8, argc=2) at perf.c:376 #21 run_argv (argv=0xbefff4a8, argcp=0xbefff4ac) at perf.c:420 #22 main (argc=2, argv=0xbefff6c8) at perf.c:521