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| author | Vasily Gorbik <gor@linux.ibm.com> | 2018-07-09 17:07:48 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-08-09 07:59:05 +0200 |
| commit | 4c14d1ce17bcc4c0c0f291ee162f9de73c4ee2eb (patch) | |
| tree | 46dd4031d6a4edcfc938810252020470a56e19a9 /tools/testing/selftests/rseq/param_test.c | |
| parent | 26f843848bae973817b3587780ce6b7b0200d3e4 (diff) | |
| download | lwn-4c14d1ce17bcc4c0c0f291ee162f9de73c4ee2eb.tar.gz lwn-4c14d1ce17bcc4c0c0f291ee162f9de73c4ee2eb.zip | |
rseq/selftests: add s390 support
Implement support for s390 in the rseq selftests, in order to sanity
check the recently enabled rseq syscall. The Implementation covers both
64-bit and 31-bit mode.
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'tools/testing/selftests/rseq/param_test.c')
| -rw-r--r-- | tools/testing/selftests/rseq/param_test.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tools/testing/selftests/rseq/param_test.c b/tools/testing/selftests/rseq/param_test.c index 615252331813..91cf50b2b0e5 100644 --- a/tools/testing/selftests/rseq/param_test.c +++ b/tools/testing/selftests/rseq/param_test.c @@ -90,6 +90,30 @@ unsigned int yield_mod_cnt, nr_abort; #error "Unsupported architecture" #endif +#elif defined(__s390__) + +#define RSEQ_INJECT_INPUT \ + , [loop_cnt_1]"m"(loop_cnt[1]) \ + , [loop_cnt_2]"m"(loop_cnt[2]) \ + , [loop_cnt_3]"m"(loop_cnt[3]) \ + , [loop_cnt_4]"m"(loop_cnt[4]) \ + , [loop_cnt_5]"m"(loop_cnt[5]) \ + , [loop_cnt_6]"m"(loop_cnt[6]) + +#define INJECT_ASM_REG "r12" + +#define RSEQ_INJECT_CLOBBER \ + , INJECT_ASM_REG + +#define RSEQ_INJECT_ASM(n) \ + "l %%" INJECT_ASM_REG ", %[loop_cnt_" #n "]\n\t" \ + "ltr %%" INJECT_ASM_REG ", %%" INJECT_ASM_REG "\n\t" \ + "je 333f\n\t" \ + "222:\n\t" \ + "ahi %%" INJECT_ASM_REG ", -1\n\t" \ + "jnz 222b\n\t" \ + "333:\n\t" + #elif defined(__ARMEL__) #define RSEQ_INJECT_INPUT \ |