From: Florian Fainelli <f.fainelli@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Florian Fainelli <f.fainelli@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
Kim Phillips <kim.phillips@arm.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ravi Bangoria <ravi.bangoria@linux.ibm.com>,
Thomas Richter <tmricht@linux.ibm.com>,
rmk+kernel@armlinux.org.uk, l.stach@pengutronix.de
Subject: [PATCH v2 0/2] perf tests: Check for ARM [vectors] page
Date: Thu, 25 Oct 2018 10:55:06 -0700 [thread overview]
Message-ID: <20181025175508.6967-1-f.fainelli@gmail.com> (raw)
Hi all,
I just painfully learned that perf would segfault when
CONFIG_KUSER_HELPERS is disabled because it unconditionally makes use of
it. This patch series adds an ARM test for that by leveraging the
existing find_vdso_map() function and making it more generic and capable
of location any map within /proc/self/maps.
Changes in v2:
- use strlen() instead of sizeof() -1 since we made the page name a
parameter
- use TEST_OK/TEST_FAIL in lieu of 0/-1
- added an error message indicating CONFIG_KUSER_HELPERS might be
disabled
Florian Fainelli (2):
perf tools: Make find_vdso_map() more modular
perf tests: Add a test for the ARM 32-bit [vectors] page
tools/perf/arch/arm/tests/Build | 1 +
tools/perf/arch/arm/tests/arch-tests.c | 4 +++
tools/perf/arch/arm/tests/vectors-page.c | 24 ++++++++++++++++++
tools/perf/tests/tests.h | 5 ++++
tools/perf/util/find-map.c | 31 ++++++++++++++++++++++++
tools/perf/util/find-vdso-map.c | 30 +++--------------------
6 files changed, 68 insertions(+), 27 deletions(-)
create mode 100644 tools/perf/arch/arm/tests/vectors-page.c
create mode 100644 tools/perf/util/find-map.c
--
2.17.1
next reply other threads:[~2018-10-25 17:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-25 17:55 Florian Fainelli [this message]
2018-10-25 17:55 ` [PATCH v2 1/2] perf tools: Make find_vdso_map() more modular Florian Fainelli
2018-11-27 9:31 ` Jiri Olsa
2018-12-10 20:16 ` Florian Fainelli
2018-11-27 9:33 ` Jiri Olsa
2018-10-25 17:55 ` [PATCH v2 2/2] perf tests: Add a test for the ARM 32-bit [vectors] page Florian Fainelli
2018-11-13 22:44 ` [PATCH v2 0/2] perf tests: Check for ARM " Florian Fainelli
2018-11-27 0:27 ` Florian Fainelli
2018-11-27 9:32 ` Jiri Olsa
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