linux-kernel - [PATCH 2/2] perf tools: Fix symbol and object code resolution for vdso32 and vdsox32

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Message-Id: <1528117014-30032-3-git-send-email-adrian.hunter@intel.com>
Date:   Mon,  4 Jun 2018 15:56:54 +0300
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...hat.com>, Wang Nan <wangnan0@...wei.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] perf tools: Fix symbol and object code resolution for vdso32 and vdsox32

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

Fixes: 1f121b03d058 ("perf tools: Deal with kernel module names in '[]' correctly")
Cc: stable@...r.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
 tools/perf/util/dso.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index cdfc2e5f55f5..51cf82cf1882 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -354,6 +354,8 @@ int __kmod_path__parse(struct kmod_path *m, const char *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;
 
-- 
1.9.1