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--- Libc/Libc-262.2.12/pthreads/thread_setup.c
+++ Libc/Libc-583/pthreads/thread_setup.c
@@ -1,3 +1,25 @@
+/*
+ * Copyright (c) 2000-2003, 2008 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
/*
* Copyright 1996 1995 by Open Software Foundation, Inc. 1997 1996 1995 1994 1993 1992 1991
* All Rights Reserved
@@ -27,8 +49,10 @@
* Machine specific support for thread initialization
*/
-#if defined(__ppc__)
+#if defined(__ppc__) || defined(__ppc64__)
#include <architecture/ppc/cframe.h>
+#elif defined(__arm__)
+#include <architecture/arm/cframe.h>
#endif
#include "pthread_internals.h"
@@ -44,39 +68,46 @@
{
kern_return_t r;
unsigned int count;
+#if defined(__ppc__) || defined(__ppc64__)
#if defined(__ppc__)
- struct ppc_thread_state state = {0};
- struct ppc_thread_state *ts = &state;
-
+ ppc_thread_state_t state = {0};
+ ppc_thread_state_t *ts = &state;
+ thread_state_flavor_t flavor = PPC_THREAD_STATE;
+ count = PPC_THREAD_STATE_COUNT;
+#elif defined(__ppc64__)
+ ppc_thread_state64_t state = {0};
+ ppc_thread_state64_t *ts = &state;
+ thread_state_flavor_t flavor = PPC_THREAD_STATE64;
+ count = PPC_THREAD_STATE64_COUNT;
+#endif
/*
* Set up PowerPC registers.
*/
- count = PPC_THREAD_STATE_COUNT;
if (suspended) {
PTHREAD_MACH_CALL(thread_get_state(thread->kernel_thread,
- PPC_THREAD_STATE,
- (thread_state_t) &state,
- &count),
- r);
- }
- ts->srr0 = (int) routine;
+ flavor,
+ (thread_state_t) &state,
+ &count),
+ r);
+ }
+ ts->srr0 = (uintptr_t)routine;
ts->r1 = (uintptr_t)vsp - C_ARGSAVE_LEN - C_RED_ZONE;
- ts->r3 = (int)thread;
- /* Incase of needresume, suspend is always set */
- if (suspended) {
- PTHREAD_MACH_CALL(thread_set_state(thread->kernel_thread,
- PPC_THREAD_STATE,
- (thread_state_t) &state,
- PPC_THREAD_STATE_COUNT),
- r);
- if (needresume)
- PTHREAD_MACH_CALL(thread_resume(thread->kernel_thread),
- r);
- } else {
- PTHREAD_MACH_CALL(thread_create_running(mach_task_self(),
- PPC_THREAD_STATE,
- (thread_state_t) ts,
- PPC_THREAD_STATE_COUNT,
+ ts->r3 = (uintptr_t)thread;
+ /* Incase of needresume, suspend is always set */
+ if (suspended) {
+ PTHREAD_MACH_CALL(thread_set_state(thread->kernel_thread,
+ flavor,
+ (thread_state_t) &state,
+ count),
+ r);
+ if (needresume)
+ PTHREAD_MACH_CALL(thread_resume(thread->kernel_thread),
+ r);
+ } else {
+ PTHREAD_MACH_CALL(thread_create_running(mach_task_self(),
+ flavor,
+ (thread_state_t) ts,
+ count,
&thread->kernel_thread),
r);
}
@@ -97,9 +128,17 @@
r);
}
ts->eip = (int) routine;
- *--sp = (int) thread; /* argument to function */
- *--sp = 0; /* fake return address */
- ts->esp = (int) sp; /* set stack pointer */
+
+ /*
+ ** We need to simulate a 16-byte aligned stack frame as if we had
+ ** executed a call instruction. Since we're "pushing" one argument,
+ ** we need to adjust the pointer by 12 bytes (3 * sizeof (int *))
+ */
+
+ sp -= 3; /* make sure stack is aligned */
+ *--sp = (int) thread; /* argument to function */
+ *--sp = 0; /* fake return address */
+ ts->esp = (int) sp; /* set stack pointer */
/* Incase of needresume, suspend is always set */
if (suspended) {
PTHREAD_MACH_CALL(thread_set_state(thread->kernel_thread,
@@ -119,6 +158,95 @@
r);
}
+#elif defined(__x86_64__)
+ x86_thread_state64_t state = {0};
+ x86_thread_state64_t *ts = &state;
+ uintptr_t *sp = vsp;
+
+ /*
+ * Set up x86-64 registers & function call.
+ */
+ count = x86_THREAD_STATE64_COUNT;
+ if (suspended) {
+ PTHREAD_MACH_CALL(thread_get_state(thread->kernel_thread,
+ x86_THREAD_STATE64,
+ (thread_state_t) &state,
+ &count),
+ r);
+ }
+ ts->rip = (uintptr_t) routine;
+
+ /*
+ ** We need to simulate a 16-byte aligned stack frame as if we had
+ ** executed a call instruction. The stack should already be aligned
+ ** before it comes to us and we don't need to push any arguments,
+ ** so we shouldn't need to change it.
+ */
+
+ ts->rdi = (uintptr_t) thread; /* argument to function */
+ *--sp = 0; /* fake return address */
+ ts->rsp = (uintptr_t) sp; /* set stack pointer */
+ /* Incase of needresume, suspend is always set */
+ if (suspended) {
+ PTHREAD_MACH_CALL(thread_set_state(thread->kernel_thread,
+ x86_THREAD_STATE64,
+ (thread_state_t) &state,
+ x86_THREAD_STATE64_COUNT),
+ r);
+ if (needresume)
+ PTHREAD_MACH_CALL(thread_resume(thread->kernel_thread),
+ r);
+ } else {
+ PTHREAD_MACH_CALL(thread_create_running(mach_task_self(),
+ x86_THREAD_STATE64,
+ (thread_state_t) ts,
+ x86_THREAD_STATE64_COUNT,
+ &thread->kernel_thread),
+ r);
+ }
+
+#elif defined(__arm__)
+ arm_thread_state_t state = {0};
+ arm_thread_state_t *ts = &state;
+ thread_state_flavor_t flavor = ARM_THREAD_STATE;
+ count = ARM_THREAD_STATE_COUNT;
+
+ if (suspended) {
+ PTHREAD_MACH_CALL(thread_get_state(thread->kernel_thread,
+ flavor,
+ (thread_state_t) &state,
+ &count),
+ r);
+ }
+
+ ts->pc = (uintptr_t)routine;
+
+ if (ts->pc & 1) {
+ ts->pc &= ~1;
+ ts->cpsr |= 0x20; /* PSR_THUMB */
+ }
+
+ ts->sp = (uintptr_t)vsp - C_ARGSAVE_LEN - C_RED_ZONE;
+ ts->r[0] = (uintptr_t)thread;
+
+ /* Incase of needresume, suspend is always set */
+ if (suspended) {
+ PTHREAD_MACH_CALL(thread_set_state(thread->kernel_thread,
+ flavor,
+ (thread_state_t) &state,
+ count),
+ r);
+ if (needresume)
+ PTHREAD_MACH_CALL(thread_resume(thread->kernel_thread),
+ r);
+ } else {
+ PTHREAD_MACH_CALL(thread_create_running(mach_task_self(),
+ flavor,
+ (thread_state_t) ts,
+ count,
+ &thread->kernel_thread),
+ r);
+ }
#else
#error _pthread_setup not defined for this architecture
#endif