From 50de1a0c54cdbc69a6dbcbc323f53daf95a4050e Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Sat, 13 Aug 2016 11:55:33 +1000 Subject: [PATCH] perf symbols: Fix annotation of objects with debuginfo files Commit 73cdf0c6ea9c ("perf symbols: Record text offset in dso to calculate objdump address") started storing the offset of the text section for all DSOs: if (elf_section_by_name(elf, &ehdr, &tshdr, ".text", NULL)) dso->text_offset = tshdr.sh_addr - tshdr.sh_offset; Unfortunately this breaks debuginfo files, because we need to calculate the offset of the text section in the associated executable file. As a result perf annotate returns junk for all debuginfo files. Fix this by using runtime_ss->elf which should point at the executable when parsing a debuginfo file. Signed-off-by: Anton Blanchard Reviewed-by: Naveen N. Rao Tested-by: Wang Nan Cc: Peter Zijlstra Cc: Ravi Bangoria Cc: stable@vger.kernel.org # v4.6+ Fixes: 73cdf0c6ea9c ("perf symbols: Record text offset in dso to calculate objdump address") Link: http://lkml.kernel.org/r/20160813115533.6de17912@kryten Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol-elf.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c index a34321e9b44d..a811c13a74d6 100644 --- a/tools/perf/util/symbol-elf.c +++ b/tools/perf/util/symbol-elf.c @@ -837,7 +837,8 @@ int dso__load_sym(struct dso *dso, struct map *map, sec = syms_ss->symtab; shdr = syms_ss->symshdr; - if (elf_section_by_name(elf, &ehdr, &tshdr, ".text", NULL)) + if (elf_section_by_name(runtime_ss->elf, &runtime_ss->ehdr, &tshdr, + ".text", NULL)) dso->text_offset = tshdr.sh_addr - tshdr.sh_offset; if (runtime_ss->opdsec) -- 2.39.5