mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2025-03-13 14:40:03 +01:00
51 lines
1.6 KiB
Go
51 lines
1.6 KiB
Go
// Copyright 2023 The Libc Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package libc // import "modernc.org/libc"
|
|
|
|
import (
|
|
"unsafe"
|
|
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
type long = int64
|
|
|
|
type ulong = uint64
|
|
|
|
// RawMem represents the biggest byte array the runtime can handle
|
|
type RawMem [1<<50 - 1]byte
|
|
|
|
func Xfesetround(tls *TLS, r int32) (r1 int32) {
|
|
if __ccgo_strace {
|
|
trc("tls=%v r=%v, (%v:)", tls, r, origin(2))
|
|
defer func() { trc("-> %v", r1) }()
|
|
}
|
|
return X__fesetround(tls, r)
|
|
}
|
|
|
|
func Xmmap(tls *TLS, start uintptr, len1 Tsize_t, prot int32, flags int32, fd int32, off Toff_t) (r uintptr) {
|
|
if __ccgo_strace {
|
|
trc("tls=%v start=%v len1=%v prot=%v flags=%v fd=%v off=%v, (%v:)", tls, start, len1, prot, flags, fd, off, origin(2))
|
|
defer func() { trc("-> %v", r) }()
|
|
}
|
|
return ___mmap(tls, start, len1, prot, flags, fd, off)
|
|
}
|
|
|
|
func ___mmap(tls *TLS, start uintptr, len1 Tsize_t, prot int32, flags int32, fd int32, off Toff_t) (r uintptr) {
|
|
if __ccgo_strace {
|
|
trc("tls=%v start=%v len1=%v prot=%v flags=%v fd=%v off=%v, (%v:)", tls, start, len1, prot, flags, fd, off, origin(2))
|
|
defer func() { trc("-> %v", r) }()
|
|
}
|
|
// https://github.com/golang/go/blob/7d822af4500831d131562f17dcf53374469d823e/src/syscall/syscall_linux_s390x.go#L77
|
|
args := [6]uintptr{start, uintptr(len1), uintptr(prot), uintptr(flags), uintptr(fd), uintptr(off)}
|
|
data, _, err := unix.Syscall(unix.SYS_MMAP, uintptr(unsafe.Pointer(&args[0])), 0, 0)
|
|
if err != 0 {
|
|
tls.setErrno(int32(err))
|
|
return ^uintptr(0) // (void*)-1
|
|
}
|
|
|
|
return data
|
|
}
|