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offsets_internal.h
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offsets_internal.h
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/*
* Copyright (c) 2018 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@
*/
#ifndef _POSIX_PTHREAD_OFFSETS_H
#define _POSIX_PTHREAD_OFFSETS_H
#if defined(__i386__)
#define _PTHREAD_STRUCT_DIRECT_STACKADDR_OFFSET 140
#define _PTHREAD_STRUCT_DIRECT_STACKBOTTOM_OFFSET 144
#elif __LP64__
#define _PTHREAD_STRUCT_DIRECT_STACKADDR_OFFSET -48
#define _PTHREAD_STRUCT_DIRECT_STACKBOTTOM_OFFSET -40
#else
#define _PTHREAD_STRUCT_DIRECT_STACKADDR_OFFSET -36
#define _PTHREAD_STRUCT_DIRECT_STACKBOTTOM_OFFSET -32
#endif
#ifndef __ASSEMBLER__
#include "pthread/private.h" // for other _PTHREAD_STRUCT_DIRECT_*_OFFSET
#define check_backward_offset(field, value) \
_Static_assert(offsetof(struct pthread_s, tsd) + value == \
offsetof(struct pthread_s, field), #value " is correct")
#define check_forward_offset(field, value) \
_Static_assert(offsetof(struct pthread_s, field) == value, \
#value " is correct")
check_forward_offset(tsd, _PTHREAD_STRUCT_DIRECT_TSD_OFFSET);
check_backward_offset(thread_id, _PTHREAD_STRUCT_DIRECT_THREADID_OFFSET);
#if defined(__i386__)
check_forward_offset(stackaddr, _PTHREAD_STRUCT_DIRECT_STACKADDR_OFFSET);
check_forward_offset(stackbottom, _PTHREAD_STRUCT_DIRECT_STACKBOTTOM_OFFSET);
#else
check_backward_offset(stackaddr, _PTHREAD_STRUCT_DIRECT_STACKADDR_OFFSET);
check_backward_offset(stackbottom, _PTHREAD_STRUCT_DIRECT_STACKBOTTOM_OFFSET);
#endif
#endif // __ASSEMBLER__
#endif /* _POSIX_PTHREAD_OFFSETS_H */