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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 "libcgo.h"
static void *threadentry(void*);
/* From what I've read 1MB is default for 32-bit Linux.
Allocation granularity on Windows is typically 64 KB. */
#define STACKSIZE (1*1024*1024)
static void
xinitcgo(void)
{
}
void (*initcgo)(void) = xinitcgo;
void
libcgo_sys_thread_start(ThreadStart *ts)
{
ts->g->stackguard = STACKSIZE;
_beginthread(threadentry, STACKSIZE, ts);
}
static void*
threadentry(void *v)
{
ThreadStart ts;
void *tls0;
ts = *(ThreadStart*)v;
free(v);
ts.g->stackbase = (uintptr)&ts;
/*
* libcgo_sys_thread_start set stackguard to stack size;
* change to actual guard pointer.
*/
ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096;
/*
* Set specific keys in thread local storage.
*/
tls0 = (void*)LocalAlloc(LPTR, 32);
asm volatile (
"movl %0, %%fs:0x2c\n" // MOVL tls0, 0x2c(FS)
"movl %%fs:0x2c, %%eax\n" // MOVL 0x2c(FS), tmp
"movl %1, 0(%%eax)\n" // MOVL g, 0(FS)
"movl %2, 4(%%eax)\n" // MOVL m, 4(FS)
:: "r"(tls0), "r"(ts.g), "r"(ts.m) : "%eax"
);
crosscall_386(ts.fn);
LocalFree(tls0);
return nil;
}
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