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Diffstat (limited to 'src/pkg/runtime/cgo/gcc_darwin_amd64.c')
-rw-r--r--src/pkg/runtime/cgo/gcc_darwin_amd64.c135
1 files changed, 0 insertions, 135 deletions
diff --git a/src/pkg/runtime/cgo/gcc_darwin_amd64.c b/src/pkg/runtime/cgo/gcc_darwin_amd64.c
deleted file mode 100644
index 65d381633..000000000
--- a/src/pkg/runtime/cgo/gcc_darwin_amd64.c
+++ /dev/null
@@ -1,135 +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 <string.h> /* for strerror */
-#include <pthread.h>
-#include <signal.h>
-#include "libcgo.h"
-
-static void* threadentry(void*);
-static pthread_key_t k1, k2;
-
-#define magic1 (0x23581321345589ULL)
-
-static void
-inittls(void)
-{
- uint64 x, y;
- pthread_key_t tofree[128], k;
- int i, ntofree;
- int havek1, havek2;
-
- /*
- * Same logic, code as darwin_386.c:/inittls, except that words
- * are 8 bytes long now, and the thread-local storage starts
- * at 0x60 on Leopard / Snow Leopard. So the offsets are
- * 0x60+8*0x108 = 0x8a0 and 0x60+8*0x109 = 0x8a8.
- *
- * The linker and runtime hard-code these constant offsets
- * from %gs where we expect to find m and g.
- * Known to ../../../cmd/6l/obj.c:/8a0
- * and to ../sys_darwin_amd64.s:/8a0
- *
- * As disgusting as on the 386; same justification.
- */
- havek1 = 0;
- havek2 = 0;
- ntofree = 0;
- while(!havek1 || !havek2) {
- if(pthread_key_create(&k, nil) < 0) {
- fprintf(stderr, "runtime/cgo: pthread_key_create failed\n");
- abort();
- }
- pthread_setspecific(k, (void*)magic1);
- asm volatile("movq %%gs:0x8a0, %0" : "=r"(x));
- asm volatile("movq %%gs:0x8a8, %0" : "=r"(y));
- if(x == magic1) {
- havek1 = 1;
- k1 = k;
- } else if(y == magic1) {
- havek2 = 1;
- k2 = k;
- } else {
- if(ntofree >= nelem(tofree)) {
- fprintf(stderr, "runtime/cgo: could not obtain pthread_keys\n");
- fprintf(stderr, "\ttried");
- for(i=0; i<ntofree; i++)
- fprintf(stderr, " %#x", (unsigned)tofree[i]);
- fprintf(stderr, "\n");
- abort();
- }
- tofree[ntofree++] = k;
- }
- pthread_setspecific(k, 0);
- }
-
- /*
- * We got the keys we wanted. Free the others.
- */
- for(i=0; i<ntofree; i++)
- pthread_key_delete(tofree[i]);
-}
-
-void
-x_cgo_init(G *g)
-{
- pthread_attr_t attr;
- size_t size;
-
- pthread_attr_init(&attr);
- pthread_attr_getstacksize(&attr, &size);
- g->stackguard = (uintptr)&attr - size + 4096;
- pthread_attr_destroy(&attr);
-
- inittls();
-}
-
-
-void
-_cgo_sys_thread_start(ThreadStart *ts)
-{
- pthread_attr_t attr;
- sigset_t ign, oset;
- pthread_t p;
- size_t size;
- int err;
-
- sigfillset(&ign);
- pthread_sigmask(SIG_SETMASK, &ign, &oset);
-
- pthread_attr_init(&attr);
- pthread_attr_getstacksize(&attr, &size);
- ts->g->stackguard = size;
- err = pthread_create(&p, &attr, threadentry, ts);
-
- pthread_sigmask(SIG_SETMASK, &oset, nil);
-
- 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;
-
- /*
- * _cgo_sys_thread_start set stackguard to stack size;
- * change to actual guard pointer.
- */
- ts.g->stackguard = (uintptr)&ts - ts.g->stackguard + 4096;
-
- pthread_setspecific(k1, (void*)ts.g);
- pthread_setspecific(k2, (void*)ts.m);
-
- crosscall_amd64(ts.fn);
- return nil;
-}