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runtime: don't use cgo_unsafe_args for syscall9 wrapper

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It uses less stack space this way.

Similar to CL 386719
Update #71302

Change-Id: I585bde5f681a90a6900cbd326994ab8a122fd148
Reviewed-on: https://go-review.googlesource.com/c/go/+/665695
Reviewed-by: Keith Randall <khr@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
This commit is contained in:
Keith Randall 2025-04-15 09:19:36 -07:00
parent 9d7de04838
commit 786e62bcd3
1 changed files with 3 additions and 3 deletions
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6
src/runtime/sys_darwin.go
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@ -70,12 +70,12 @@ func syscall6()
//
//go:linkname syscall_syscall9 syscall.syscall9
//go:nosplit
//go:cgo_unsafe_args
func syscall_syscall9(fn, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2, err uintptr) {
args := struct{ fn, a1, a2, a3, a4, a5, a6, a7, a8, a9, r1, r2, err uintptr }{fn, a1, a2, a3, a4, a5, a6, a7, a8, a9, r1, r2, err}
entersyscall()
libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall9)), unsafe.Pointer(&fn))
libcCall(unsafe.Pointer(abi.FuncPCABI0(syscall9)), unsafe.Pointer(&args))
exitsyscall()
return
return args.r1, args.r2, args.err
}
func syscall9()