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s390: wire up rseq system call

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Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens
2018-06-30 10:54:15 +02:00
committed by Martin Schwidefsky
parent 8bf935501a
commit 9d6d99e3ac
5 changed files with 9 additions and 1 deletions
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4
arch/s390/kernel/entry.S
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@@ -357,6 +357,10 @@ ENTRY(system_call)
stg %r2,__PT_R2(%r11) # store return value
.Lsysc_return:
#ifdef CONFIG_DEBUG_RSEQ
lgr %r2,%r11
brasl %r14,rseq_syscall
#endif
LOCKDEP_SYS_EXIT
.Lsysc_tif:
TSTMSK __PT_FLAGS(%r11),_PIF_WORK