diff options
| author |   Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | 2019-04-29 11:27:56 -0400 |
|---|---|---|
| committer |   Shuah Khan <skhan@linuxfoundation.org> | 2019-05-07 15:31:55 -0600 |
| commit | 97b8be816840da81296f3a90352a7fce4e66c156 (patch) | |
| tree | 93400b540b98cd105595ca7bc4a55d5488dac9b5 /tools/testing/selftests | |
| parent | rseq/selftests: Use __rseq_handled symbol to coexist with glibc (diff) | |
| download | linux-dev-97b8be816840da81296f3a90352a7fce4e66c156.tar.xz linux-dev-97b8be816840da81296f3a90352a7fce4e66c156.zip | |
rseq/selftests: s390: use jg instruction for jumps outside of the asm
The branch target range of the "j" instruction is 64K, which is not
enough for the general case.
Suggested-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Joel Fernandes <joelaf@google.com>
CC: Peter Zijlstra <peterz@infradead.org>
CC: Catalin Marinas <catalin.marinas@arm.com>
CC: Dave Watson <davejwatson@fb.com>
CC: Will Deacon <will.deacon@arm.com>
CC: Shuah Khan <shuah@kernel.org>
CC: Andi Kleen <andi@firstfloor.org>
CC: linux-kselftest@vger.kernel.org
CC: "H . Peter Anvin" <hpa@zytor.com>
CC: Chris Lameter <cl@linux.com>
CC: Russell King <linux@arm.linux.org.uk>
CC: Michael Kerrisk <mtk.manpages@gmail.com>
CC: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
CC: Paul Turner <pjt@google.com>
CC: Boqun Feng <boqun.feng@gmail.com>
CC: Josh Triplett <josh@joshtriplett.org>
CC: Steven Rostedt <rostedt@goodmis.org>
CC: Ben Maurer <bmaurer@fb.com>
CC: linux-api@vger.kernel.org
CC: Andy Lutomirski <luto@amacapital.net>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'tools/testing/selftests')
| -rw-r--r-- | tools/testing/selftests/rseq/rseq-s390.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/testing/selftests/rseq/rseq-s390.h b/tools/testing/selftests/rseq/rseq-s390.h index fbb97815d71c..7c4f3a70b6c7 100644 --- a/tools/testing/selftests/rseq/rseq-s390.h +++ b/tools/testing/selftests/rseq/rseq-s390.h @@ -117,14 +117,14 @@ do { \ ".long " __rseq_str(RSEQ_SIG) "\n\t" \ __rseq_str(label) ":\n\t" \ teardown \ - "j %l[" __rseq_str(abort_label) "]\n\t" \ + "jg %l[" __rseq_str(abort_label) "]\n\t" \ ".popsection\n\t" #define RSEQ_ASM_DEFINE_CMPFAIL(label, teardown, cmpfail_label) \ ".pushsection __rseq_failure, \"ax\"\n\t" \ __rseq_str(label) ":\n\t" \ teardown \ - "j %l[" __rseq_str(cmpfail_label) "]\n\t" \ + "jg %l[" __rseq_str(cmpfail_label) "]\n\t" \ ".popsection\n\t" static inline __attribute__((always_inline)) |