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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*);
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);
}
extern void crosscall1(void (*fn)(void), void (*setg_gcc)(void*), void *g);
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 (
"movl %0, %%fs:0(%1)\n" // MOVL tls0, 0(tls_g)(FS)
"movl %%fs:0(%1), %%eax\n" // MOVL 0(tls_g)(FS), tmp
"movl %2, 0(%%eax)\n" // MOVL g, 0(AX)
:: "r"(ts.tls), "r"(*tls_g), "r"(ts.g) : "%eax"
);
crosscall1(ts.fn, setg_gcc, ts.g);
}
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