blob: 3ff3c64565c31d087e616b8da9549663962f9efd [file] [log] [blame]
// 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*);
static DWORD *tls_g;
void
x_cgo_init(G *g, void (*setg)(void*), void **tlsg, void **tlsbase)
{
setg_gcc = setg;
tls_g = (DWORD *)tlsg;
}
void
_cgo_sys_thread_start(ThreadStart *ts)
{
_cgo_beginthread(threadentry, ts);
}
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:0(%1)\n" // MOVL tls0, 0(tls_g)(GS)
:: "r"(ts.tls), "r"(*tls_g)
);
crosscall_amd64(ts.fn, setg_gcc, (void*)ts.g);
}