2aa62f2bc9
This set of three packages: AppPkg, StdLib, StdLibPrivateInternalFiles; contains the implementation of libraries based upon non-UEFI standards such as ISO/IEC-9899, the library portion of the C Language Standard, POSIX, etc. AppPkg contains applications that make use of the standard libraries defined in the StdLib Package. StdLib contains header (include) files and the implementations of the standard libraries. StdLibPrivateInternalFiles contains files for the exclusive use of the library implementations in StdLib. These files should never be directly referenced from applications or other code. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11600 6f19259b-4bc3-4df7-8a09-765794883524
115 lines
3.8 KiB
C
115 lines
3.8 KiB
C
/* $NetBSD: mcontext.h,v 1.5 2005/12/11 12:16:47 christos Exp $ */
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/*-
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* Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Klaus Klein and by Jason R. Thorpe of Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _ARM_MCONTEXT_H_
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#define _ARM_MCONTEXT_H_
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/*
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* General register state
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*/
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#define _NGREG 17
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typedef unsigned int __greg_t;
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typedef __greg_t __gregset_t[_NGREG];
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#define _REG_R0 0
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#define _REG_R1 1
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#define _REG_R2 2
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#define _REG_R3 3
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#define _REG_R4 4
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#define _REG_R5 5
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#define _REG_R6 6
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#define _REG_R7 7
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#define _REG_R8 8
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#define _REG_R9 9
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#define _REG_R10 10
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#define _REG_R11 11
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#define _REG_R12 12
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#define _REG_R13 13
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#define _REG_R14 14
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#define _REG_R15 15
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#define _REG_CPSR 16
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/* Convenience synonyms */
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#define _REG_FP _REG_R11
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#define _REG_SP _REG_R13
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#define _REG_LR _REG_R14
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#define _REG_PC _REG_R15
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/*
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* Floating point register state
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*/
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/* Note: the storage layout of this structure must be identical to ARMFPE! */
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typedef struct {
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unsigned int __fp_fpsr;
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struct {
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unsigned int __fp_exponent;
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unsigned int __fp_mantissa_hi;
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unsigned int __fp_mantissa_lo;
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} __fp_fr[8];
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} __fpregset_t;
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typedef struct {
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unsigned int __vfp_fpscr;
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unsigned int __vfp_fstmx[33];
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unsigned int __vfp_fpsid;
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} __vfpregset_t;
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typedef struct {
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__gregset_t __gregs;
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union {
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__fpregset_t __fpregs;
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__vfpregset_t __vfpregs;
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} __fpu;
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} mcontext_t;
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/* Machine-dependent uc_flags */
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#define _UC_ARM_VFP 0x00010000 /* FPU field is VFP */
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/* used by signal delivery to indicate status of signal stack */
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#define _UC_SETSTACK 0x00020000
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#define _UC_CLRSTACK 0x00040000
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#define _UC_MACHINE_PAD 3 /* Padding appended to ucontext_t */
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#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_SP])
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#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PC])
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#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_R0])
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#define _UC_MACHINE_SET_PC(uc, pc) _UC_MACHINE_PC(uc) = (pc)
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#endif /* !_ARM_MCONTEXT_H_ */
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