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perf tools: Demangle kernel and kernel module symbols too

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Some kernels contain C++ code, and thus their symbols need to be
demangled.  This allows 'perf kvm top' to generate readable output.

Signed-off-by: Avi Kivity <avi@cloudius-systems.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/26f71bf5bf7ee1408e3f1a803556d5df18223ef1.1390420726.git.avi@cloudius-systems.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Avi Kivity 2014-01-22 21:58:46 +02:00 committed by Arnaldo Carvalho de Melo
parent 0d4dd79756
commit 950b835471
1 changed files with 1 additions and 1 deletions
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2
tools/perf/util/symbol-elf.c
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@ -922,6 +922,7 @@ int dso__load_sym(struct dso *dso, struct map *map,
(u64)shdr.sh_offset);
sym.st_value -= shdr.sh_addr - shdr.sh_offset;
}
new_symbol:
/*
* We need to figure out if the object was created from C++ sources
* DWARF DW_compile_unit has this, but we don't always have access
@ -933,7 +934,6 @@ int dso__load_sym(struct dso *dso, struct map *map,
if (demangled != NULL)
elf_name = demangled;
}
new_symbol:
f = symbol__new(sym.st_value, sym.st_size,
GELF_ST_BIND(sym.st_info), elf_name);
free(demangled);