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// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <process.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include "libcgo.h"
#include "libcgo_windows.h"
static void threadentry(void*);
static void (*setg_gcc)(void*);
void
x_cgo_init(G *g, void (*setg)(void*), void **tlsg, void **tlsbase)
{
setg_gcc = setg;
}
void
_cgo_sys_thread_start(ThreadStart *ts)
{
uintptr_t thandle;
thandle = _beginthread(threadentry, 0, ts);
if(thandle == -1) {
fprintf(stderr, "runtime: failed to create new OS thread (%d)\n", errno);
abort();
}
}
static void
threadentry(void *v)
{
ThreadStart ts;
ts = *(ThreadStart*)v;
free(v);
// minit queries stack bounds from the OS.
/*
* Set specific keys in thread local storage.
*/
asm volatile (
"movq %0, %%gs:0x28\n" // MOVL tls0, 0x28(GS)
:: "r"(ts.tls)
);
crosscall_amd64(ts.fn, setg_gcc, (void*)ts.g);
}
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