linux-kernel - [PATCH 4.14 118/157] perf tools: Fix symbol and object code resolution for vdso32 and vdsox32

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Date:   Sun,  1 Jul 2018 18:23:10 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Adrian Hunter <adrian.hunter@...el.com>,
        Jiri Olsa <jolsa@...hat.com>, Wang Nan <wangnan0@...wei.com>,
        Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 4.14 118/157] perf tools: Fix symbol and object code resolution for vdso32 and vdsox32

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Adrian Hunter <adrian.hunter@...el.com>

commit aef4feace285f27c8ed35830a5d575bec7f3e90a upstream.

Fix __kmod_path__parse() so that perf tools does not treat vdso32 and
vdsox32 as kernel modules and fail to find the object.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Wang Nan <wangnan0@...wei.com>
Cc: stable@...r.kernel.org
Fixes: 1f121b03d058 ("perf tools: Deal with kernel module names in '[]' correctly")
Link: http://lkml.kernel.org/r/1528117014-30032-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 tools/perf/util/dso.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -352,6 +352,8 @@ int __kmod_path__parse(struct kmod_path
 		if ((strncmp(name, "[kernel.kallsyms]", 17) == 0) ||
 		    (strncmp(name, "[guest.kernel.kallsyms", 22) == 0) ||
 		    (strncmp(name, "[vdso]", 6) == 0) ||
+		    (strncmp(name, "[vdso32]", 8) == 0) ||
+		    (strncmp(name, "[vdsox32]", 9) == 0) ||
 		    (strncmp(name, "[vsyscall]", 10) == 0)) {
 			m->kmod = false;