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authorArnaldo Carvalho de Melo <acme@redhat.com>2010-06-03 18:35:55 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2010-06-04 07:07:52 -0300
commite7dadc0089da730a1ba2638a1a03533be0c67f11 (patch)
treefe85a16eb85cf4c2750fddb347a3fd1f69e1c6e3
parentda3fd1a0010ccc9fe6fd5ae2b9e85e1aacc03e4d (diff)
downloadlinux-2.6.34-ux500-e7dadc0089da730a1ba2638a1a03533be0c67f11.tar.gz
perf symbols: Set the DSO long name when using symbol_conf.vmlinux_name
We need to set the long name to the name specified via, for instance, 'perf annotate --vmlinux /path/to/vmlinux', if not it will remain as '[kernel.kallsyms]' and that will make annotate fail when passing this as the vmlinux name in the call to objdump. The way this is setup grew unwieldly and dso__load_vmlinux is the function that should allocate space for the long name, with callers not assuming that filenames should be allocated somehow by then (strdup, dso__build_id_filename, etc). For now this is the minimalistic patch, a proper fix for .36 will be made. Reported-by: Stephane Eranian <eranian@google.com> Tested-by: Stephane Eranian <eranian@google.com> Cc: David S. Miller <davem@davemloft.net> Cc: Frédéric Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <20100604003900.GD10469@ghostprotocols.net> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/util/symbol.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 7fd6b151feb..b63e5713849 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1745,7 +1745,12 @@ static int dso__load_kernel_sym(struct dso *self, struct map *map,
if (symbol_conf.vmlinux_name != NULL) {
err = dso__load_vmlinux(self, map,
symbol_conf.vmlinux_name, filter);
- goto out_try_fixup;
+ if (err > 0) {
+ dso__set_long_name(self,
+ strdup(symbol_conf.vmlinux_name));
+ goto out_fixup;
+ }
+ return err;
}
if (vmlinux_path != NULL) {
@@ -1806,7 +1811,6 @@ do_kallsyms:
pr_debug("Using %s for symbols\n", kallsyms_filename);
free(kallsyms_allocated_filename);
-out_try_fixup:
if (err > 0) {
out_fixup:
if (kallsyms_filename != NULL)