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a7e75016a0
Add a test that validates that timer value is not overwritten when doing a copy_map_value call in the kernel. Without the prior fix, this test triggers a crash. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20220209070324.1093182-3-memxor@gmail.com
32 lines
666 B
C
32 lines
666 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <test_progs.h>
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#include "timer_crash.skel.h"
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enum {
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MODE_ARRAY,
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MODE_HASH,
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};
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static void test_timer_crash_mode(int mode)
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{
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struct timer_crash *skel;
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skel = timer_crash__open_and_load();
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if (!ASSERT_OK_PTR(skel, "timer_crash__open_and_load"))
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return;
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skel->bss->pid = getpid();
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skel->bss->crash_map = mode;
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if (!ASSERT_OK(timer_crash__attach(skel), "timer_crash__attach"))
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goto end;
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usleep(1);
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end:
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timer_crash__destroy(skel);
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}
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void test_timer_crash(void)
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{
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if (test__start_subtest("array"))
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test_timer_crash_mode(MODE_ARRAY);
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if (test__start_subtest("hash"))
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test_timer_crash_mode(MODE_HASH);
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}
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