103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
/*
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* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this
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* file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*/
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#ifndef _BSD_SETJMP_H
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#define _BSD_SETJMP_H
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#include <sys/cdefs.h>
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#include <Availability.h>
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#if defined(__x86_64__)
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/*
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* _JBLEN is number of ints required to save the following:
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* rflags, rip, rbp, rsp, rbx, r12, r13, r14, r15... these are 8 bytes each
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* mxcsr, fp control word, sigmask... these are 4 bytes each
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* add 16 ints for future expansion needs...
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*/
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#define _JBLEN ((9 * 2) + 3 + 16)
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typedef int jmp_buf[_JBLEN];
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typedef int sigjmp_buf[_JBLEN + 1];
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#elif defined(__i386__)
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/*
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* _JBLEN is number of ints required to save the following:
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* eax, ebx, ecx, edx, edi, esi, ebp, esp, ss, eflags, eip,
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* cs, de, es, fs, gs == 16 ints
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* onstack, mask = 2 ints
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*/
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#define _JBLEN (18)
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typedef int jmp_buf[_JBLEN];
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typedef int sigjmp_buf[_JBLEN + 1];
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#elif defined(__arm__) && !defined(__ARM_ARCH_7K__)
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#include <machine/signal.h>
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/*
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* _JBLEN is number of ints required to save the following:
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* r4-r8, r10, fp, sp, lr, sig == 10 register_t sized
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* s16-s31 == 16 register_t sized + 1 int for FSTMX
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* 1 extra int for future use
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*/
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#define _JBLEN (10 + 16 + 2)
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#define _JBLEN_MAX _JBLEN
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typedef int jmp_buf[_JBLEN];
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typedef int sigjmp_buf[_JBLEN + 1];
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#elif defined(__arm64__) || defined(__ARM_ARCH_7K__)
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/*
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* _JBLEN is the number of ints required to save the following:
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* r21-r29, sp, fp, lr == 12 registers, 8 bytes each. d8-d15
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* are another 8 registers, each 8 bytes long. (aapcs64 specifies
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* that only 64-bit versions of FP registers need to be saved).
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* Finally, two 8-byte fields for signal handling purposes.
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*/
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#define _JBLEN ((14 + 8 + 2) * 2)
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typedef int jmp_buf[_JBLEN];
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typedef int sigjmp_buf[_JBLEN + 1];
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#else
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# error Undefined platform for setjmp
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#endif
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__BEGIN_DECLS
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extern int setjmp(jmp_buf);
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extern void longjmp(jmp_buf, int) __dead2;
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#ifndef _ANSI_SOURCE
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int _setjmp(jmp_buf);
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void _longjmp(jmp_buf, int) __dead2;
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int sigsetjmp(sigjmp_buf, int);
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void siglongjmp(sigjmp_buf, int) __dead2;
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#endif /* _ANSI_SOURCE */
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#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
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void longjmperror(void);
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#endif /* neither ANSI nor POSIX */
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__END_DECLS
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#endif /* _BSD_SETJMP_H */
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