mirror of
https://github.com/superseriousbusiness/gotosocial.git
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71 lines
1.4 KiB
Go
71 lines
1.4 KiB
Go
// Copyright 2023 The Libc Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package libc // import "modernc.org/libc"
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import (
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"math/bits"
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"sync/atomic"
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"unsafe"
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)
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type long = int32
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type ulong = uint32
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var (
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___a_barrier_ptr ulong
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)
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// RawMem represents the biggest byte array the runtime can handle
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type RawMem [1<<31 - 1]byte
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// void *memcpy(void *dest, const void *src, size_t n);
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func Xmemcpy(t *TLS, dest, src uintptr, n Tsize_t) (r uintptr) {
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if __ccgo_strace {
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trc("t=%v src=%v n=%v, (%v:)", t, src, n, origin(2))
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defer func() { trc("-> %v", r) }()
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}
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return _memcpy(t, dest, src, n)
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}
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func _memcpy(t *TLS, dest, src uintptr, n Tsize_t) (r uintptr) {
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if n != 0 {
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copy((*RawMem)(unsafe.Pointer(dest))[:n:n], (*RawMem)(unsafe.Pointer(src))[:n:n])
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}
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return dest
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}
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func _fetestexcept(t *TLS, _ int32) int32 {
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return 0
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}
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func _feclearexcept(t *TLS, _ int32) int32 {
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return 0
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}
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func _a_crash(tls *TLS) {
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panic("crash")
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}
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var atomicBarrier atomic.Int32
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func _a_barrier(tls *TLS) {
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atomicBarrier.Add(1)
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}
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// static inline int a_sc(volatile int *p, int v)
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func _a_sc(*TLS, uintptr, int32) int32 {
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panic(todo(""))
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}
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// static inline int a_ll(volatile int *p)
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func _a_ll(tls *TLS, p uintptr) int32 {
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return atomic.LoadInt32((*int32)(unsafe.Pointer(p)))
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}
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func _a_clz_32(tls *TLS, x uint32) int32 {
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return int32(bits.LeadingZeros32(x))
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}
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