get_ver = dlsym(handle, "android_get_device_api_level");
	dlclose(handle);
	if (get_ver != NULL) {
		off = (void *)(TLS_SLOT_APP*sizeof(void *));
		// tlsg is initialized to Q's free TLS slot. Verify it while we're here.
		if (*tlsg != off) {
			fatalf("tlsg offset wrong, got %ld want %ld\n", *tlsg, off);
		}
		return;
	}

	err = pthread_key_create(&k, nil);
	if(err != 0) {
		fatalf("pthread_key_create failed: %d", err);
	}

#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);
}

	/*
	 * 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);

static void* threadentry(void*);
static void (*setg_gcc)(void*);

// This will be set in gcc_android.c for android-specific customization.
void (*x_cgo_inittls)(void **tlsg, void **tlsbase) __attribute__((common));

void
x_cgo_init(G *g, void (*setg)(void*), void **tlsg, void **tlsbase)
{
	uintptr *pbounds;

	/* The memory sanitizer distributed with versions of clang
	   before 3.8 has a bug: if you call mmap before malloc, mmap

#include "libcgo_unix.h"

static void *threadentry(void*);

void (*x_cgo_inittls)(void **tlsg, void **tlsbase) __attribute__((common));
static void (*setg_gcc)(void*);

void
x_cgo_init(G *g, void (*setg)(void*), void **tlsg, void **tlsbase)
{
	setg_gcc = setg;

	_cgo_set_stacklo(g, NULL);

	if (x_cgo_inittls) {
		x_cgo_inittls(tlsg, tlsbase);
	}
}

void
_cgo_sys_thread_start(ThreadStart *ts)
{

//
// It finds the first available slot using pthread_key_create and uses
// it as the offset value for runtime.tlsg.
//
// This runs at startup on g0 stack, but before g is set, so it must
// not split stack (transitively). g is expected to be nil, so things
// (e.g. asmcgocall) will skip saving or reading g.
//
//go:nosplit
func tlsinit(tlsg *uintptr, tlsbase *[_PTHREAD_KEYS_MAX]uintptr) {
	var k pthreadkey
	err := g0_pthread_key_create(&k, 0)

#include <pthread.h>
#include <errno.h>
#include <string.h>
#include <signal.h>
#include <stdlib.h>
#include "libcgo.h"
#include "libcgo_unix.h"

static void *threadentry(void*);

void (*x_cgo_inittls)(void **tlsg, void **tlsbase) __attribute__((common));
static void (*setg_gcc)(void*);

void
_cgo_sys_thread_start(ThreadStart *ts)
{
	pthread_attr_t attr;
	sigset_t ign, oset;
	pthread_t p;
	size_t size;
	int err;

#include <pthread.h>
#include <signal.h>
#include "libcgo.h"
#include "libcgo_unix.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;
	_cgo_set_stacklo(g, NULL);
}


void
_cgo_sys_thread_start(ThreadStart *ts)
{
	pthread_attr_t attr;
	sigset_t ign, oset;
	pthread_t p;
	size_t size;

#include <pthread.h>
#include <string.h>
#include <signal.h>
#include "libcgo.h"
#include "libcgo_unix.h"

static void *threadentry(void*);

void (*x_cgo_inittls)(void **tlsg, void **tlsbase);
static void (*setg_gcc)(void*);

void
x_cgo_init(G *g, void (*setg)(void*), void **tlsbase)
{
	setg_gcc = setg;
	_cgo_set_stacklo(g, NULL);
}

void

//go:build ppc64 || ppc64le

#include <pthread.h>
#include <string.h>
#include <signal.h>
#include "libcgo.h"
#include "libcgo_unix.h"

static void *threadentry(void*);

void (*x_cgo_inittls)(void **tlsg, void **tlsbase);
static void (*setg_gcc)(void*);

void
x_cgo_init(G *g, void (*setg)(void*), void **tlsbase)
{
	setg_gcc = setg;
	_cgo_set_stacklo(g, NULL);
}

void