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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /tools/testing/selftests/powerpc/tm/tm-fork.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tools/testing/selftests/powerpc/tm/tm-fork.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/tools/testing/selftests/powerpc/tm/tm-fork.c b/tools/testing/selftests/powerpc/tm/tm-fork.c new file mode 100644 index 000000000..c27b935f0 --- /dev/null +++ b/tools/testing/selftests/powerpc/tm/tm-fork.c @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright 2015, Michael Neuling, IBM Corp. + * + * Edited: Rashmica Gupta, Nov 2015 + * + * This test does a fork syscall inside a transaction. Basic sniff test + * to see if we can enter the kernel during a transaction. + */ + +#include <errno.h> +#include <inttypes.h> +#include <pthread.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#include "utils.h" +#include "tm.h" + +int test_fork(void) +{ + SKIP_IF(!have_htm()); + SKIP_IF(htm_is_synthetic()); + + asm __volatile__( + "tbegin.;" + "blt 1f; " + "li 0, 2;" /* fork syscall */ + "sc ;" + "tend.;" + "1: ;" + : : : "memory", "r0"); + /* If we reach here, we've passed. Otherwise we've probably crashed + * the kernel */ + + return 0; +} + +int main(int argc, char *argv[]) +{ + return test_harness(test_fork, "tm_fork"); +} |