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| author | Andrew Pogrebnoy <absourd.noise@gmail.com> | 2022-10-07 10:12:54 +0300 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2022-10-07 18:28:11 +0000 |
| commit | c7cc2b94c63af610a29b1b48cfbfb87cb8abf05b (patch) | |
| tree | 658fcfa6dedbddaf4a65ed8d2c14851e8155fb38 /src/runtime/sys_linux_arm64.s | |
| parent | 67cd77b88f2fdf620556cd698752aa2ed53fee1b (diff) | |
| download | go-c7cc2b94c63af610a29b1b48cfbfb87cb8abf05b.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.
This is a resubmit as the previous CL 421994 was reverted due to test
failures after the merge with the master. The issue was fixed in
CL 438615
For #53824
For #51087
Change-Id: I1bd0f23a85b4f9b80178c5dd36fd3e95ff4f9648
Reviewed-on: https://go-review.googlesource.com/c/go/+/440115
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Michael Pratt <mpratt@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Run-TryBot: Michael Pratt <mpratt@google.com>
Diffstat (limited to 'src/runtime/sys_linux_arm64.s')
| -rw-r--r-- | src/runtime/sys_linux_arm64.s | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/src/runtime/sys_linux_arm64.s b/src/runtime/sys_linux_arm64.s index b47b6fd0a0..04a2cd2da1 100644 --- a/src/runtime/sys_linux_arm64.s +++ b/src/runtime/sys_linux_arm64.s @@ -22,7 +22,6 @@ #define SYS_openat 56 #define SYS_close 57 #define SYS_pipe2 59 -#define SYS_fcntl 25 #define SYS_nanosleep 101 #define SYS_mmap 222 #define SYS_munmap 215 @@ -42,9 +41,6 @@ #define SYS_futex 98 #define SYS_sched_getaffinity 123 #define SYS_exit_group 94 -#define SYS_epoll_create1 20 -#define SYS_epoll_ctl 21 -#define SYS_epoll_pwait 22 #define SYS_clock_gettime 113 #define SYS_faccessat 48 #define SYS_socket 198 @@ -762,54 +758,6 @@ TEXT runtime·sched_getaffinity(SB),NOSPLIT|NOFRAME,$0 MOVW R0, ret+24(FP) RET -// int32 runtime·epollcreate(int32 size); -TEXT runtime·epollcreate(SB),NOSPLIT|NOFRAME,$0 - MOVW $0, R0 - MOVD $SYS_epoll_create1, R8 - SVC - MOVW R0, ret+8(FP) - RET - -// int32 runtime·epollcreate1(int32 flags); -TEXT runtime·epollcreate1(SB),NOSPLIT|NOFRAME,$0 - MOVW flags+0(FP), R0 - MOVD $SYS_epoll_create1, R8 - SVC - MOVW R0, ret+8(FP) - RET - -// func epollctl(epfd, op, fd int32, ev *epollEvent) int -TEXT runtime·epollctl(SB),NOSPLIT|NOFRAME,$0 - MOVW epfd+0(FP), R0 - MOVW op+4(FP), R1 - MOVW fd+8(FP), R2 - MOVD ev+16(FP), R3 - MOVD $SYS_epoll_ctl, R8 - SVC - MOVW R0, 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), R0 - MOVD ev+8(FP), R1 - MOVW nev+16(FP), R2 - MOVW timeout+20(FP), R3 - MOVD $0, R4 - MOVD $SYS_epoll_pwait, R8 - SVC - MOVW R0, ret+24(FP) - RET - -// void runtime·closeonexec(int32 fd); -TEXT runtime·closeonexec(SB),NOSPLIT|NOFRAME,$0 - MOVW fd+0(FP), R0 // fd - MOVD $2, R1 // F_SETFD - MOVD $1, R2 // FD_CLOEXEC - MOVD $SYS_fcntl, R8 - SVC - RET - // int access(const char *name, int mode) TEXT runtime·access(SB),NOSPLIT,$0-20 MOVD $AT_FDCWD, R0 |