diff options
| author | Andy Pan <panjf2000@gmail.com> | 2024-02-01 09:07:43 +0800 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2024-03-04 17:26:21 +0000 |
| commit | dff3a00ceaf63385bcde984e1ce7013e0d6ab7c3 (patch) | |
| tree | b36b746387da88879e66452621d0ff5510e98caa /src/internal/runtime | |
| parent | 5cbea577533dd15a7fcb7c8962f41e179931f14e (diff) | |
| download | go-dff3a00ceaf63385bcde984e1ce7013e0d6ab7c3.tar.xz | |
syscall: call internal/runtime/syscall.Syscall6 in RawSyscall6
For #65355
Change-Id: I9168d9a767e3b2ece65ac6dcab6827ab6f6b11bb
Reviewed-on: https://go-review.googlesource.com/c/go/+/560136
Reviewed-by: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Diffstat (limited to 'src/internal/runtime')
| -rw-r--r-- | src/internal/runtime/syscall/syscall_linux.go | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/src/internal/runtime/syscall/syscall_linux.go b/src/internal/runtime/syscall/syscall_linux.go index cb88659394..83df825169 100644 --- a/src/internal/runtime/syscall/syscall_linux.go +++ b/src/internal/runtime/syscall/syscall_linux.go @@ -15,29 +15,6 @@ import ( // Syscall6 calls system call number 'num' with arguments a1-6. func Syscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr) -// syscall_RawSyscall6 is a push linkname to export Syscall6 as -// syscall.RawSyscall6. -// -// //go:uintptrkeepalive because the uintptr argument may be converted pointers -// that need to be kept alive in the caller (this is implied for Syscall6 since -// it has no body). -// -// //go:nosplit because stack copying does not account for uintptrkeepalive, so -// the stack must not grow. Stack copying cannot blindly assume that all -// uintptr arguments are pointers, because some values may look like pointers, -// but not really be pointers, and adjusting their value would break the call. -// -// This is a separate wrapper because we can't export one function as two -// names. The assembly implementations name themselves Syscall6 would not be -// affected by a linkname. -// -//go:uintptrkeepalive -//go:nosplit -//go:linkname syscall_RawSyscall6 syscall.RawSyscall6 -func syscall_RawSyscall6(num, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, errno uintptr) { - return Syscall6(num, a1, a2, a3, a4, a5, a6) -} - func EpollCreate1(flags int32) (fd int32, errno uintptr) { r1, _, e := Syscall6(SYS_EPOLL_CREATE1, uintptr(flags), 0, 0, 0, 0, 0) return int32(r1), e |