d32ed98975
architecture to provide asm versions of the RAS operations. We do this because relying on the compiler to get the RAS right is not sensible. (It gets alpha wrong and hppa is suboptimal) Provide asm RAS ops for hppa. (A slightly different version) reviewed by Andrew Doran.
102 lines
3.5 KiB
C
102 lines
3.5 KiB
C
/* $NetBSD: pthread_md.h,v 1.4 2007/09/24 12:19:39 skrll Exp $ */
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/*-
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* Copyright (c) 2001 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 Nathan J. Williams.
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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 _LIB_PTHREAD_HPPA_MD_H
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#define _LIB_PTHREAD_HPPA_MD_H
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#include <machine/frame.h>
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#define PTHREAD__ASM_RASOPS
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static inline long
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pthread__sp(void)
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{
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register long sp __asm("r30");
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return sp;
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}
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#define pthread__uc_sp(ucp) ((ucp)->uc_mcontext.__gregs[_REG_SP])
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#define pthread__uc_pc(ucp) ((ucp)->uc_mcontext.__gregs[_REG_PCOQH])
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/*
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* Set initial, sane values for registers whose values aren't just
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* "don't care".
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*/
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#define _INITCONTEXT_U_MD(ucp) \
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(ucp)->uc_mcontext.__gregs[_REG_PSW] = 0x4000f;
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/*
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* Usable stack space below the ucontext_t.
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*/
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#define STACKSPACE (HPPA_FRAME_SIZE)
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/*
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* Conversions between struct reg and struct mcontext. Used by
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* libpthread_dbg.
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*/
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#include <hppa/reg.h>
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#define PTHREAD_UCONTEXT_TO_REG(reg, uc) \
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do { \
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memcpy(&(reg)->r_regs, &(uc)->uc_mcontext.__gregs, \
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sizeof(__greg_t) * 32); \
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} while (/*CONSTCOND*/0)
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#define PTHREAD_REG_TO_UCONTEXT(uc, reg) \
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do { \
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memcpy(&(uc)->uc_mcontext.__gregs, &(reg)->r_regs, \
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sizeof(__greg_t) * 32); \
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(uc)->uc_flags = ((uc)->uc_flags | _UC_CPU) & ~_UC_USER; \
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} while (/*CONSTCOND*/0)
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#define PTHREAD_UCONTEXT_TO_FPREG(freg, uc) \
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do { \
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memcpy((freg), &(uc)->uc_mcontext.__fpregs, \
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sizeof(struct fpreg)); \
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} while (/*CONSTCOND*/0)
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#define PTHREAD_FPREG_TO_UCONTEXT(uc, freg) \
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do { \
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memcpy(&(uc)->uc_mcontext.__fpregs, (freg), \
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sizeof(struct fpreg)); \
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(uc)->uc_flags = ((uc)->uc_flags | _UC_FPU) & ~_UC_USER; \
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} while (/*CONSTCOND*/0)
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#endif /* !_LIB_PTHREAD_HPPA_MD_H */
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