From mboxrd@z Thu Jan 1 00:00:00 1970 From: takahiro.akashi@linaro.org (AKASHI Takahiro) Date: Thu, 13 Mar 2014 19:11:31 +0900 Subject: [PATCH v4 3/3] arm64: Add regs_return_value() in syscall.h In-Reply-To: <1394705491-12343-1-git-send-email-takahiro.akashi@linaro.org> References: <1393564465-3862-1-git-send-email-takahiro.akashi@linaro.org> <1394705491-12343-1-git-send-email-takahiro.akashi@linaro.org> Message-ID: <1394705491-12343-4-git-send-email-takahiro.akashi@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- 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 0e7fa49..5800ec1 100644 --- a/arch/arm64/include/asm/ptrace.h +++ b/arch/arm64/include/asm/ptrace.h @@ -134,6 +134,11 @@ 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) -- 1.7.9.5