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perf symbols: Do not apply symfs for an absolute vmlinux path

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If an user gives both of --symfs and --vmlinux option, the vmlinux will
be searched under the symfs directory.  This is somewhat confusing since
vmlinux often lives in kernel build directory or somewhere other than
user space binaries.

So it'd be better not adding symfs prefix for a vmlinux if it has an
absolute pathname.

Reported-by: Kwanghyun Yoo <ykh815.yoo@lge.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1374048495-3643-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2013-07-17 17:08:15 +09:00 committed by Arnaldo Carvalho de Melo
parent ab4ecda520
commit 5698d2c99e
1 changed files with 5 additions and 2 deletions
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7
tools/perf/util/symbol.c
View file

@ -888,8 +888,11 @@ int dso__load_vmlinux(struct dso *dso, struct map *map,
char symfs_vmlinux[PATH_MAX];
enum dso_binary_type symtab_type;
snprintf(symfs_vmlinux, sizeof(symfs_vmlinux), "%s%s",
symbol_conf.symfs, vmlinux);
if (vmlinux[0] == '/')
snprintf(symfs_vmlinux, sizeof(symfs_vmlinux), "%s", vmlinux);
else
snprintf(symfs_vmlinux, sizeof(symfs_vmlinux), "%s%s",
symbol_conf.symfs, vmlinux);
if (dso->kernel == DSO_TYPE_GUEST_KERNEL)
symtab_type = DSO_BINARY_TYPE__GUEST_VMLINUX;