From 43a123c1ae6613b3efeed291fa552ecd909d3acf Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:23:18 +0200 Subject: Adding upstream version 1.20.14. Signed-off-by: Daniel Baumann --- src/runtime/cgo/gcc_windows_amd64.c | 51 +++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 src/runtime/cgo/gcc_windows_amd64.c (limited to 'src/runtime/cgo/gcc_windows_amd64.c') diff --git a/src/runtime/cgo/gcc_windows_amd64.c b/src/runtime/cgo/gcc_windows_amd64.c new file mode 100644 index 0000000..3ff3c64 --- /dev/null +++ b/src/runtime/cgo/gcc_windows_amd64.c @@ -0,0 +1,51 @@ +// 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 +#include +#include +#include +#include +#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); +} -- cgit v1.2.3