+++ /dev/null
-/*
- * Copyright (c) 2010 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@
- */
-
-/*
- * This holds the C versions of OSAtomic.s resolver functions, used by
- * everyone except dyld.
- */
-
-#include <arm/arch.h>
-#if defined(_ARM_ARCH_7)
-
-#include <stdlib.h>
-#include <machine/cpu_capabilities.h>
-#include <mach/machine.h>
-
-#if defined(VARIANT_DYLD)
-
-#define _STRDEF(x) __STRING(x)
-
-#define makeResolver_up_mp(name) \
- void* name ## $VARIANT$up(void); \
- void* name ## $VARIANT$mp(void); \
- void* name ## Resolver(void) __asm__( "_" #name ); \
- void* name ## Resolver(void) { \
- __asm__ __volatile__ ( \
- "ldr ip, L" #name "$commpage ;" \
- "ldr ip, [ip] ;" \
- "tst ip, $(" _STRDEF(kUP) ") ;" \
- "bne 1f ; " \
- "b _" __STRING(name) "$VARIANT$mp ;" \
- "1: b _" __STRING(name) "$VARIANT$up ;" \
- "L" #name "$commpage: .long " _STRDEF(_COMM_PAGE_CPU_CAPABILITIES) " ;" \
- : : : ); \
- }
-
-#define makeResolver_up_mp_wfe(name) makeResolver_up_mp(name)
-
-#else
-
-#define makeResolver_up_mp(name) \
- void name ## $VARIANT$up(void); \
- void name ## $VARIANT$mp(void); \
- void* name ## Resolver(void) __asm__( "_" #name ) ; \
- void* name ## Resolver(void) { \
- __asm__(".symbol_resolver _" #name); \
- /* return MP variant functions on kNumCPUs > 1 */ \
- if ((*(uint32_t*)(uintptr_t)_COMM_PAGE_CPU_CAPABILITIES & kUP) == 0) { \
- return name ## $VARIANT$mp; \
- } \
- return name ## $VARIANT$up; \
- }
-
-#define makeResolver_up_mp_wfe(name) \
- void name ## $VARIANT$up(void); \
- void name ## $VARIANT$mp(void); \
- void name ## $VARIANT$wfe(void); \
- void* name ## Resolver(void) __asm__( "_" #name ) ; \
- void* name ## Resolver(void) { \
- __asm__(".symbol_resolver _" #name); \
- uint32_t caps = *(uint32_t*)(uintptr_t)_COMM_PAGE_CPU_CAPABILITIES; \
- /* return WFE variant if we will get woken up */ \
- if ((caps & (kHasEvent | kUP)) == kHasEvent) { \
- return name ## $VARIANT$wfe; \
- } \
- /* return MP variant functions on kNumCPUs > 1 */ \
- else if ((caps & kUP) == 0) { \
- return name ## $VARIANT$mp; \
- } \
- return name ## $VARIANT$up; \
- }
-
-#endif // defined VARIANT_DYLD
-
-#include "OSAtomic_resolvers.h"
-
-#else // defined _ARM_ARCH_7
-
-typedef int emptyFilesArentCFiles;
-
-#endif // defined _ARM_ARCH_7 && !defined VARIANT_DYLD