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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_arm.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_arm.s')
| -rw-r--r-- | src/runtime/sys_linux_arm.s | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/src/runtime/sys_linux_arm.s b/src/runtime/sys_linux_arm.s index 9ac64328c1..1bc9e86d6d 100644 --- a/src/runtime/sys_linux_arm.s +++ b/src/runtime/sys_linux_arm.s @@ -41,15 +41,10 @@ #define SYS_nanosleep (SYS_BASE + 162) #define SYS_sched_getaffinity (SYS_BASE + 242) #define SYS_clock_gettime (SYS_BASE + 263) -#define SYS_epoll_create (SYS_BASE + 250) -#define SYS_epoll_ctl (SYS_BASE + 251) -#define SYS_epoll_wait (SYS_BASE + 252) #define SYS_timer_create (SYS_BASE + 257) #define SYS_timer_settime (SYS_BASE + 258) #define SYS_timer_delete (SYS_BASE + 261) -#define SYS_epoll_create1 (SYS_BASE + 357) #define SYS_pipe2 (SYS_BASE + 359) -#define SYS_fcntl (SYS_BASE + 55) #define SYS_access (SYS_BASE + 33) #define SYS_connect (SYS_BASE + 283) #define SYS_socket (SYS_BASE + 281) @@ -616,53 +611,6 @@ TEXT runtime·sched_getaffinity(SB),NOSPLIT,$0 MOVW R0, ret+12(FP) RET -// int32 runtime·epollcreate(int32 size) -TEXT runtime·epollcreate(SB),NOSPLIT,$0 - MOVW size+0(FP), R0 - MOVW $SYS_epoll_create, R7 - SWI $0 - MOVW R0, ret+4(FP) - RET - -// int32 runtime·epollcreate1(int32 flags) -TEXT runtime·epollcreate1(SB),NOSPLIT,$0 - MOVW flags+0(FP), R0 - MOVW $SYS_epoll_create1, R7 - SWI $0 - MOVW R0, ret+4(FP) - RET - -// func epollctl(epfd, op, fd int32, ev *epollEvent) int -TEXT runtime·epollctl(SB),NOSPLIT,$0 - MOVW epfd+0(FP), R0 - MOVW op+4(FP), R1 - MOVW fd+8(FP), R2 - MOVW ev+12(FP), R3 - MOVW $SYS_epoll_ctl, R7 - SWI $0 - MOVW R0, ret+16(FP) - RET - -// int32 runtime·epollwait(int32 epfd, EpollEvent *ev, int32 nev, int32 timeout) -TEXT runtime·epollwait(SB),NOSPLIT,$0 - MOVW epfd+0(FP), R0 - MOVW ev+4(FP), R1 - MOVW nev+8(FP), R2 - MOVW timeout+12(FP), R3 - MOVW $SYS_epoll_wait, R7 - SWI $0 - MOVW R0, ret+16(FP) - RET - -// void runtime·closeonexec(int32 fd) -TEXT runtime·closeonexec(SB),NOSPLIT,$0 - MOVW fd+0(FP), R0 // fd - MOVW $2, R1 // F_SETFD - MOVW $1, R2 // FD_CLOEXEC - MOVW $SYS_fcntl, R7 - SWI $0 - RET - // b __kuser_get_tls @ 0xffff0fe0 TEXT runtime·read_tls_fallback(SB),NOSPLIT|NOFRAME,$0 MOVW $0xffff0fe0, R0 |