Messages in this thread Patch in this message | | | From | AKASHI Takahiro <> | Subject | [PATCH v6 3/4] arm64: Add regs_return_value() in syscall.h | Date | Wed, 30 Apr 2014 18:51:31 +0900 |
| |
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 <will.deacon@arm.com> Acked-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> --- 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 c7ba261..a429b59 100644 --- a/arch/arm64/include/asm/ptrace.h +++ b/arch/arm64/include/asm/ptrace.h @@ -135,6 +135,11 @@ struct pt_regs { #define user_stack_pointer(regs) \ (!compat_user_mode(regs)) ? ((regs)->sp) : ((regs)->compat_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
| |