linux-kernel - [PATCH 35/46] perf tools: Fix symbol and object code resolution for vdso32 and vdsox32

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Message-Id: <20180605175030.32549-36-acme@kernel.org>
Date:   Tue,  5 Jun 2018 14:50:19 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>
Cc:     Clark Williams <williams@...hat.com>, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org,
        Adrian Hunter <adrian.hunter@...el.com>,
        Jiri Olsa <jolsa@...hat.com>, Wang Nan <wangnan0@...wei.com>,
        stable@...r.kernel.org, Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 35/46] perf tools: Fix symbol and object code resolution for vdso32 and vdsox32

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

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>
---
 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;
 
-- 
2.14.3