114 lines
4.6 KiB
C
114 lines
4.6 KiB
C
/* $NetBSD: pthread_md.h,v 1.3 2003/06/12 23:01:17 nathanw 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_MIPS_MD_H
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#define _LIB_PTHREAD_MIPS_MD_H
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static __inline long
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pthread__sp(void)
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{
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long ret;
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__asm("move %0, $sp" : "=r" (ret));
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return ret;
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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_EPC])
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/*
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* Usable stack space below the ucontext_t.
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* For a good time, see comments in pthread_switch.S and
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* ../i386/pthread_switch.S about STACK_SWITCH.
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*/
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#define STACKSPACE (6*4) /* 6 integer values */
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/*
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* Conversions between struct reg and struct mcontext. Used by
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* libpthread_dbg. Note that in the "reg" structure, the indices
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* are the same as are used in the "frame" structure in the kernel.
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* These do NOT, in all cases, match the indices used in the
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* "mcontext" structure.
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*/
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#include <mips/regnum.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[AST], &(uc)->uc_mcontext.__gregs[_REG_AT],\
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sizeof(__greg_t) * 31); \
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(reg)->r_regs[MULLO] = (uc)->uc_mcontext.__gregs[_REG_MDLO]; \
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(reg)->r_regs[MULHI] = (uc)->uc_mcontext.__gregs[_REG_MDHI]; \
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(reg)->r_regs[CAUSE] = (uc)->uc_mcontext.__gregs[_REG_CAUSE]; \
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(reg)->r_regs[PC] = (uc)->uc_mcontext.__gregs[_REG_EPC]; \
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(reg)->r_regs[SR] = (uc)->uc_mcontext.__gregs[_REG_SR]; \
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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_AT], &(reg)->r_regs[AST],\
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sizeof(__greg_t) * 31); \
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(uc)->uc_mcontext.__gregs[_REG_MDLO] = (reg)->r_regs[MULLO]; \
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(uc)->uc_mcontext.__gregs[_REG_MDHI] = (reg)->r_regs[MULHI]; \
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(uc)->uc_mcontext.__gregs[_REG_CAUSE] = (reg)->r_regs[CAUSE]; \
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(uc)->uc_mcontext.__gregs[_REG_EPC] = (reg)->r_regs[PC]; \
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(uc)->uc_mcontext.__gregs[_REG_SR] = (reg)->r_regs[SR]; \
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\
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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.__fp_r.__fp_regs32, \
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sizeof((uc)->uc_mcontext.__fpregs.__fp_r.__fp_regs32)); \
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(freg)->r_regs[FSR - FPBASE] = \
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(uc)->uc_mcontext.__fpregs.__fp_csr; \
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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.__fp_r.__fp_regs32, (freg), \
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sizeof((uc)->uc_mcontext.__fpregs.__fp_r.__fp_regs32)); \
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(uc)->uc_mcontext.__fpregs.__fp_csr = \
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(freg)->r_regs[FSR - FPBASE]; \
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\
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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_MIPS_MD_H */
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