21327c7843
perf on ARM requires CONFIG_KUSER_HELPERS to be turned on to allow some independance with respect to the ARM CPU being used. Add a test which tries to locate the [vectors] page, created when CONFIG_KUSER_HELPERS is turned on to help asses the system's health. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Chris Healy <cphealy@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Kim Phillips <kim.phillips@arm.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Cc: Russell King <rmk+kernel@armlinux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Richter <tmricht@linux.ibm.com> Link: http://lkml.kernel.org/r/20181221034337.26663-3-f.fainelli@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
24 lines
515 B
C
24 lines
515 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <stdio.h>
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#include <string.h>
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#include <linux/compiler.h>
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#include "debug.h"
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#include "tests/tests.h"
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#include "util/find-map.c"
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#define VECTORS__MAP_NAME "[vectors]"
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int test__vectors_page(struct test *test __maybe_unused,
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int subtest __maybe_unused)
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{
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void *start, *end;
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if (find_map(&start, &end, VECTORS__MAP_NAME)) {
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pr_err("%s not found, is CONFIG_KUSER_HELPERS enabled?\n",
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VECTORS__MAP_NAME);
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return TEST_FAIL;
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}
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return TEST_OK;
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}
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