Hi, I have a large, complex, non-public project where I used to identify performance issues using callgrind (via QtCreator) but that stopped working. Now I don't get any function names, instead I get "0x00000123456789" or similar.
I created a very simple project and it still doesn't work as expected. You can find the project here: https://github.com/abrock/callgrind-test I build it like this: g++ -g main.cpp and run it like this: valgrind --tool=callgrind ./a.out which gives me this output: ==8960== Callgrind, a call-graph generating cache profiler ==8960== Copyright (C) 2002-2017, and GNU GPL'd, by Josef Weidendorfer et al. ==8960== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info ==8960== Command: ./a.out ==8960== ==8960== For interactive control, run 'callgrind_control -h'. Hello World! The sum is: 499999500000 The sum is: 49995000 ==8960== ==8960== Events : Ir ==8960== Collected : 14374235 ==8960== ==8960== I refs: 14,374,235 Then I run kcachegrind: kcachegrind callgrind.out.8960 which gives me this result: https://imgur.com/a/anljbAL It shows the two trees for the two functions with different runtimes as expected, but no function names and complains about missing debug symbols and doesn't seem to know the name of the executable. This is my g++ version: g++ -v Using built-in specs. COLLECT_GCC=g++ COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/8/lto-wrapper OFFLOAD_TARGET_NAMES=nvptx-none OFFLOAD_TARGET_DEFAULT=1 Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 8.2.0-6' --with-bugurl=file:///usr/share/doc/gcc-8/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-8 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Thread model: posix gcc version 8.2.0 (Debian 8.2.0-6) I'm out of ideas, did I do something wrong? Feels like I missed something totally obvious. I tried the git version of valgrind which works as expected for the simple test program but crashes for my large project: valgrind: m_debuginfo/debuginfo.c:738 (check_CFSI_related_invariants): Assertion 'cfsi_fits' failed. host stacktrace: ==24946== at 0x58022AB4: show_sched_status_wrk (m_libcassert.c:369) ==24946== by 0x58022BC7: report_and_quit (m_libcassert.c:440) ==24946== by 0x58022D59: vgPlain_assert_fail (m_libcassert.c:506) ==24946== by 0x58049F7F: vgPlain_di_notify_mmap (debuginfo.c:738) ==24946== by 0x5807A96B: vgModuleLocal_generic_PRE_sys_mmap (syswrap-generic.c:2402) ==24946== by 0x5808640F: vgSysWrap_amd64_linux_sys_mmap_before (syswrap-amd64-linux.c:404) ==24946== by 0x58076081: vgPlain_client_syscall (syswrap-main.c:1863) ==24946== by 0x58072C1A: handle_syscall (scheduler.c:1176) ==24946== by 0x580744D6: vgPlain_scheduler (scheduler.c:1498) ==24946== by 0x580D5330: run_a_thread_NORETURN (syswrap-linux.c:103) sched status: running_tid=1 Thread 1: status = VgTs_Runnable syscall 9 (lwpid 24946) ==24946== at 0x401A693: mmap (mmap64.c:52) ==24946== by 0x40060AD: _dl_map_object_from_fd (dl-map-segments.h:94) ==24946== by 0x400890E: _dl_map_object (dl-load.c:2461) ==24946== by 0x400D061: openaux (dl-deps.c:63) ==24946== by 0x401950A: _dl_catch_exception (dl-error-skeleton.c:196) ==24946== by 0x400D2F2: _dl_map_object_deps (dl-deps.c:249) ==24946== by 0x4003D95: dl_main (rtld.c:1726) ==24946== by 0x401862F: _dl_sysdep_start (dl-sysdep.c:253) ==24946== by 0x40020D7: _dl_start (rtld.c:414) ==24946== by 0x4001217: ??? (in /lib/x86_64-linux-gnu/ld-2.27.so) client stack range: [0x1FFEFFE000 0x1FFF000FFF] client SP: 0x1FFEFFE258 valgrind stack range: [0x1002A8E000 0x1002B8DFFF] top usage: 16248 of 1048576 Best Regards, Alexander _______________________________________________ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
