Messages in this thread Patch in this message | | | From | Andre Przywara <> | Subject | [PATCH] arm: wire up userfaultfd and membarrier syscalls | Date | Mon, 21 Sep 2015 18:00:33 +0100 |
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Add the syscall numbers to the ARM syscall table. Both have been briefly tested using the provided selftests from the tools directory.
Signed-off-by: Andre Przywara <andre.przywara@arm.com> --- Hi Russell,
I saw that Thierry sent something similar beginning of August already (which is now outdated), is there any issue with enabling syscalls?
Cheers, Andre.
arch/arm/include/asm/unistd.h | 2 +- arch/arm/include/uapi/asm/unistd.h | 2 ++ arch/arm/kernel/calls.S | 2 ++ 3 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h index 32640c4..7cba573 100644 --- a/arch/arm/include/asm/unistd.h +++ b/arch/arm/include/asm/unistd.h @@ -19,7 +19,7 @@ * This may need to be greater than __NR_last_syscall+1 in order to * account for the padding in the syscall table */ -#define __NR_syscalls (388) +#define __NR_syscalls (392) /* * *NOTE*: This is a ghost syscall private to the kernel. Only the diff --git a/arch/arm/include/uapi/asm/unistd.h b/arch/arm/include/uapi/asm/unistd.h index 0c3f5a0..7a2a32a 100644 --- a/arch/arm/include/uapi/asm/unistd.h +++ b/arch/arm/include/uapi/asm/unistd.h @@ -414,6 +414,8 @@ #define __NR_memfd_create (__NR_SYSCALL_BASE+385) #define __NR_bpf (__NR_SYSCALL_BASE+386) #define __NR_execveat (__NR_SYSCALL_BASE+387) +#define __NR_userfaultfd (__NR_SYSCALL_BASE+388) +#define __NR_membarrier (__NR_SYSCALL_BASE+389) /* * The following SWIs are ARM private. diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index 05745eb..fde6c88 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -397,6 +397,8 @@ /* 385 */ CALL(sys_memfd_create) CALL(sys_bpf) CALL(sys_execveat) + CALL(sys_userfaultfd) + CALL(sys_membarrier) #ifndef syscalls_counted .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls #define syscalls_counted -- 2.5.1
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