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| author | Mark Brown <broonie@kernel.org> | 2018-05-22 10:28:38 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-05-22 10:28:38 +0100 |
| commit | e1c51aa8705fd78e5259e0515aad3b5003e18550 (patch) | |
| tree | 3728628142a24460d6b488e5331f421f902e5d3a /arch/s390/kernel/uprobes.c | |
| parent | 6e49b7fa3083c30688b7fff1b37ed891cd1c30af (diff) | |
| parent | 08556e03ad36b2c6219aba90de88ccf58038e208 (diff) | |
Merge branch 'linux-linaro-lsk-v4.9' into linux-linaro-lsk-v4.9-rtlinux-linaro-lsk-v4.9-rt-test
Diffstat (limited to 'arch/s390/kernel/uprobes.c')
| -rw-r--r-- | arch/s390/kernel/uprobes.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/s390/kernel/uprobes.c b/arch/s390/kernel/uprobes.c index 66956c09d5bf..3d04dfdabc9f 100644 --- a/arch/s390/kernel/uprobes.c +++ b/arch/s390/kernel/uprobes.c @@ -147,6 +147,15 @@ unsigned long arch_uretprobe_hijack_return_addr(unsigned long trampoline, return orig; } +bool arch_uretprobe_is_alive(struct return_instance *ret, enum rp_check ctx, + struct pt_regs *regs) +{ + if (ctx == RP_CHECK_CHAIN_CALL) + return user_stack_pointer(regs) <= ret->stack; + else + return user_stack_pointer(regs) < ret->stack; +} + /* Instruction Emulation */ static void adjust_psw_addr(psw_t *psw, unsigned long len) |