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| author | Andrew Pogrebnoy <absourd.noise@gmail.com> | 2022-08-01 17:58:17 +0300 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2022-09-30 17:35:24 +0000 |
| commit | 4e6f963469d8f489586b2bf277af30e0fbfa1679 (patch) | |
| tree | 78a0af19244b856a0845b997d72324f16b6d0457 /src/runtime/sys_linux_mips64x.s | |
| parent | 9e0149da3c25c3a2399e0f578549f252c186491c (diff) | |
| download | go-4e6f963469d8f489586b2bf277af30e0fbfa1679.tar.xz | |
runtime: move epoll syscalls to runtime/internal/syscall
This change moves Linux epoll's syscalls implementation to the
"runtime/internal/syscall" package. The intention in this CL was to
minimise behavioural changes but make the code more generalised. This
also will allow adding new syscalls (like epoll_pwait2) without the
need to implement assembly stubs for each arch.
It also drops epoll_create as not all architectures provide this call.
epoll_create1 was added to the kernel in version 2.6.27 and Go requires
Linux kernel version 2.6.32 or later since Go 1.18. So it is safe to
always use epoll_create1.
For #53824
For #51087
Change-Id: I9a6a26b7f2075a38e041de1bab4691da0ecb94fc
Reviewed-on: https://go-review.googlesource.com/c/go/+/421994
Reviewed-by: Michael Pratt <mpratt@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
Diffstat (limited to 'src/runtime/sys_linux_mips64x.s')
| -rw-r--r-- | src/runtime/sys_linux_mips64x.s | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/src/runtime/sys_linux_mips64x.s b/src/runtime/sys_linux_mips64x.s index 06d54dff78..5d11339584 100644 --- a/src/runtime/sys_linux_mips64x.s +++ b/src/runtime/sys_linux_mips64x.s @@ -20,7 +20,6 @@ #define SYS_close 5003 #define SYS_getpid 5038 #define SYS_kill 5060 -#define SYS_fcntl 5070 #define SYS_mmap 5009 #define SYS_munmap 5011 #define SYS_setitimer 5036 @@ -37,16 +36,12 @@ #define SYS_futex 5194 #define SYS_sched_getaffinity 5196 #define SYS_exit_group 5205 -#define SYS_epoll_create 5207 -#define SYS_epoll_ctl 5208 #define SYS_timer_create 5216 #define SYS_timer_settime 5217 #define SYS_timer_delete 5220 #define SYS_tgkill 5225 #define SYS_openat 5247 -#define SYS_epoll_pwait 5272 #define SYS_clock_gettime 5222 -#define SYS_epoll_create1 5285 #define SYS_brk 5012 #define SYS_pipe2 5287 @@ -568,62 +563,6 @@ TEXT runtime·sched_getaffinity(SB),NOSPLIT|NOFRAME,$0 MOVW R2, ret+24(FP) RET -// int32 runtime·epollcreate(int32 size); -TEXT runtime·epollcreate(SB),NOSPLIT|NOFRAME,$0 - MOVW size+0(FP), R4 - MOVV $SYS_epoll_create, R2 - SYSCALL - BEQ R7, 2(PC) - SUBVU R2, R0, R2 // caller expects negative errno - MOVW R2, ret+8(FP) - RET - -// int32 runtime·epollcreate1(int32 flags); -TEXT runtime·epollcreate1(SB),NOSPLIT|NOFRAME,$0 - MOVW flags+0(FP), R4 - MOVV $SYS_epoll_create1, R2 - SYSCALL - BEQ R7, 2(PC) - SUBVU R2, R0, R2 // caller expects negative errno - MOVW R2, ret+8(FP) - RET - -// func epollctl(epfd, op, fd int32, ev *epollEvent) int -TEXT runtime·epollctl(SB),NOSPLIT|NOFRAME,$0 - MOVW epfd+0(FP), R4 - MOVW op+4(FP), R5 - MOVW fd+8(FP), R6 - MOVV ev+16(FP), R7 - MOVV $SYS_epoll_ctl, R2 - SYSCALL - SUBVU R2, R0, R2 // caller expects negative errno - MOVW R2, ret+24(FP) - RET - -// int32 runtime·epollwait(int32 epfd, EpollEvent *ev, int32 nev, int32 timeout); -TEXT runtime·epollwait(SB),NOSPLIT|NOFRAME,$0 - // This uses pwait instead of wait, because Android O blocks wait. - MOVW epfd+0(FP), R4 - MOVV ev+8(FP), R5 - MOVW nev+16(FP), R6 - MOVW timeout+20(FP), R7 - MOVV $0, R8 - MOVV $SYS_epoll_pwait, R2 - SYSCALL - BEQ R7, 2(PC) - SUBVU R2, R0, R2 // caller expects negative errno - MOVW R2, ret+24(FP) - RET - -// void runtime·closeonexec(int32 fd); -TEXT runtime·closeonexec(SB),NOSPLIT|NOFRAME,$0 - MOVW fd+0(FP), R4 // fd - MOVV $2, R5 // F_SETFD - MOVV $1, R6 // FD_CLOEXEC - MOVV $SYS_fcntl, R2 - SYSCALL - RET - // func sbrk0() uintptr TEXT runtime·sbrk0(SB),NOSPLIT|NOFRAME,$0-8 // Implemented as brk(NULL). |