From c5b2a660db70c8e591e8e2e3f7024073177b7124 Mon Sep 17 00:00:00 2001 From: AKASHI Takahiro Date: Wed, 30 Apr 2014 10:51:31 +0100 Subject: arm64: Add regs_return_value() in syscall.h This macro, regs_return_value, is used mainly for audit to record system call's results, but may also be used in test_kprobes.c. Acked-by: Will Deacon Acked-by: Richard Guy Briggs Signed-off-by: AKASHI Takahiro Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas (cherry picked from commit d34a3ebd8d25cf691a94fae66a957a480cf46430) Signed-off-by: Alex Shi --- arch/arm64/include/asm/ptrace.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h index 41a71ee4c3df..f38a8aa58d4c 100644 --- a/arch/arm64/include/asm/ptrace.h +++ b/arch/arm64/include/asm/ptrace.h @@ -133,6 +133,11 @@ struct pt_regs { #define user_stack_pointer(regs) \ ((regs)->sp) +static inline unsigned long regs_return_value(struct pt_regs *regs) +{ + return regs->regs[0]; +} + /* * Are the current registers suitable for user mode? (used to maintain * security in signal handlers) -- cgit v1.2.3