diff options
Diffstat (limited to 'src/pkg/runtime/cgo/linux_386.c')
-rw-r--r-- | src/pkg/runtime/cgo/linux_386.c | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/src/pkg/runtime/cgo/linux_386.c b/src/pkg/runtime/cgo/linux_386.c deleted file mode 100644 index e9df5ffdc..000000000 --- a/src/pkg/runtime/cgo/linux_386.c +++ /dev/null @@ -1,73 +0,0 @@ -// 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. - -#include <pthread.h> -#include <string.h> -#include "libcgo.h" - -static void *threadentry(void*); - -static void -xinitcgo(void) -{ -} - -void (*initcgo) = xinitcgo; - -void -libcgo_sys_thread_start(ThreadStart *ts) -{ - pthread_attr_t attr; - pthread_t p; - size_t size; - int err; - - // Not sure why the memset is necessary here, - // but without it, we get a bogus stack size - // out of pthread_attr_getstacksize. C'est la Linux. - memset(&attr, 0, sizeof attr); - pthread_attr_init(&attr); - size = 0; - pthread_attr_getstacksize(&attr, &size); - ts->g->stackguard = size; - err = pthread_create(&p, &attr, threadentry, ts); - if (err != 0) { - fprintf(stderr, "runtime/cgo: pthread_create failed: %s\n", strerror(err)); - abort(); - } -} - -static void* -threadentry(void *v) -{ - ThreadStart ts; - - 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. On Linux/ELF, the thread local storage - * is just before %gs:0. Our dynamic 8.out's reserve 8 bytes - * for the two words g and m at %gs:-8 and %gs:-4. - * Xen requires us to access those words indirect from %gs:0 - * which points at itself. - */ - asm volatile ( - "movl %%gs:0, %%eax\n" // MOVL 0(GS), tmp - "movl %0, -8(%%eax)\n" // MOVL g, -8(GS) - "movl %1, -4(%%eax)\n" // MOVL m, -4(GS) - :: "r"(ts.g), "r"(ts.m) : "%eax" - ); - - crosscall_386(ts.fn); - return nil; -} |