From e7dadc0089da730a1ba2638a1a03533be0c67f11 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 3 Jun 2010 18:35:55 -0300 Subject: [PATCH] perf symbols: Set the DSO long name when using symbol_conf.vmlinux_name MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Tested-by: Stephane Eranian Cc: David S. Miller Cc: Frédéric Weisbecker Cc: Ingo Molnar Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Tom Zanussi LKML-Reference: <20100604003900.GD10469@ghostprotocols.net> Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 7fd6b151feb5..b63e5713849f 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) -- 2.20.1