From: Ravi Bangoria Date: Thu, 31 Aug 2017 09:14:56 +0000 (+0530) Subject: perf test powerpc: Fix 'Object code reading' test X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9a805d8648ee09c136130fe4114a09574bc0b1ef;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git perf test powerpc: Fix 'Object code reading' test 'Object code reading' test always fails on powerpc guest. Two reasons for the failure are: 1. When elf section is too big (size beyond 'unsigned int' max value). objdump fails to disassemble from such section. This was fixed with commit 0f6329bd7fc ("binutils/objdump: Fix disassemble for huge elf sections") in binutils. 2. When the sample is from hypervisor. Hypervisor symbols can not be resolved within guest and thus thread__find_addr_map() fails for such symbols. Fix this by ignoring hypervisor symbols in the test. Signed-off-by: Ravi Bangoria Acked-by: Adrian Hunter Cc: Alexander Shishkin Cc: Jiri Olsa Cc: Michael Ellerman Cc: Namhyung Kim Cc: Peter Zijlstra Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/1504170896-7876-1-git-send-email-ravi.bangoria@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c index 761c5a448c56..466a462b26d1 100644 --- a/tools/perf/tests/code-reading.c +++ b/tools/perf/tests/code-reading.c @@ -237,6 +237,11 @@ static int read_object_code(u64 addr, size_t len, u8 cpumode, thread__find_addr_map(thread, cpumode, MAP__FUNCTION, addr, &al); if (!al.map || !al.map->dso) { + if (cpumode == PERF_RECORD_MISC_HYPERVISOR) { + pr_debug("Hypervisor address can not be resolved - skipping\n"); + return 0; + } + pr_debug("thread__find_addr_map failed\n"); return -1; }