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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_ppc64x.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_ppc64x.s')
| -rw-r--r-- | src/runtime/sys_linux_ppc64x.s | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/src/runtime/sys_linux_ppc64x.s b/src/runtime/sys_linux_ppc64x.s index 2913a05f56..853008d5fe 100644 --- a/src/runtime/sys_linux_ppc64x.s +++ b/src/runtime/sys_linux_ppc64x.s @@ -21,7 +21,6 @@ #define SYS_getpid 20 #define SYS_kill 37 #define SYS_brk 45 -#define SYS_fcntl 55 #define SYS_mmap 90 #define SYS_munmap 91 #define SYS_setitimer 104 @@ -38,15 +37,11 @@ #define SYS_futex 221 #define SYS_sched_getaffinity 223 #define SYS_exit_group 234 -#define SYS_epoll_create 236 -#define SYS_epoll_ctl 237 -#define SYS_epoll_wait 238 #define SYS_timer_create 240 #define SYS_timer_settime 241 #define SYS_timer_delete 244 #define SYS_clock_gettime 246 #define SYS_tgkill 250 -#define SYS_epoll_create1 315 #define SYS_pipe2 317 TEXT runtime·exit(SB),NOSPLIT|NOFRAME,$0-4 @@ -876,55 +871,6 @@ TEXT runtime·sched_getaffinity(SB),NOSPLIT|NOFRAME,$0 MOVW R3, ret+24(FP) RET -// int32 runtime·epollcreate(int32 size); -TEXT runtime·epollcreate(SB),NOSPLIT|NOFRAME,$0 - MOVW size+0(FP), R3 - SYSCALL $SYS_epoll_create - BVC 2(PC) - NEG R3 // caller expects negative errno - MOVW R3, ret+8(FP) - RET - -// int32 runtime·epollcreate1(int32 flags); -TEXT runtime·epollcreate1(SB),NOSPLIT|NOFRAME,$0 - MOVW flags+0(FP), R3 - SYSCALL $SYS_epoll_create1 - BVC 2(PC) - NEG R3 // caller expects negative errno - MOVW R3, ret+8(FP) - RET - -// func epollctl(epfd, op, fd int32, ev *epollEvent) int -TEXT runtime·epollctl(SB),NOSPLIT|NOFRAME,$0 - MOVW epfd+0(FP), R3 - MOVW op+4(FP), R4 - MOVW fd+8(FP), R5 - MOVD ev+16(FP), R6 - SYSCALL $SYS_epoll_ctl - NEG R3 // caller expects negative errno - MOVW R3, ret+24(FP) - RET - -// int32 runtime·epollwait(int32 epfd, EpollEvent *ev, int32 nev, int32 timeout); -TEXT runtime·epollwait(SB),NOSPLIT|NOFRAME,$0 - MOVW epfd+0(FP), R3 - MOVD ev+8(FP), R4 - MOVW nev+16(FP), R5 - MOVW timeout+20(FP), R6 - SYSCALL $SYS_epoll_wait - BVC 2(PC) - NEG R3 // caller expects negative errno - MOVW R3, ret+24(FP) - RET - -// void runtime·closeonexec(int32 fd); -TEXT runtime·closeonexec(SB),NOSPLIT|NOFRAME,$0 - MOVW fd+0(FP), R3 // fd - MOVD $2, R4 // F_SETFD - MOVD $1, R5 // FD_CLOEXEC - SYSCALL $SYS_fcntl - RET - // func sbrk0() uintptr TEXT runtime·sbrk0(SB),NOSPLIT|NOFRAME,$0 // Implemented as brk(NULL). |