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pthread_md.h revision 1.1.2.3 
      1 /*	$NetBSD: pthread_md.h,v 1.1.2.3 2002/09/10 23:46:18 petrov Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *        This product includes software developed by the NetBSD
     18  *        Foundation, Inc. and its contributors.
     19  * 4. Neither the name of The NetBSD Foundation nor the names of its
     20  *    contributors may be used to endorse or promote products derived
     21  *    from this software without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     24  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     25  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     26  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     27  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     33  * POSSIBILITY OF SUCH DAMAGE.
     34  */
     35 
     36 #ifndef _LIB_PTHREAD_SPARC64_MD_H
     37 #define _LIB_PTHREAD_SPARC64_MD_H
     38 
     39 /*
     40  * pthread__sp used for identifying thread
     41  */
     42 static __inline long
     43 pthread__sp(void)
     44 {
     45 	long ret;
     46 
     47 	__asm("mov %%sp, %0" : "=r" (ret));
     48 
     49 	return ret;
     50 }
     51 
     52 #define pthread__uc_sp(ucp) ((ucp)->uc_mcontext.__gregs[_REG_O6])
     53 #define pthread__uc_pc(ucp) ((ucp)->uc_mcontext.__gregs[_REG_PC])
     54 
     55 #define STACKSPACE 176	/* min stack frame XXX */
     56 
     57 /*
     58  * Conversions between struct reg and struct mcontext. Used by
     59  * libpthread_dbg.
     60  * XXX macros
     61  */
     62 
     63 #define PTHREAD_UCONTEXT_TO_REG(reg, uc) do {				\
     64 	memcpy(&(reg)->r_tstate, &(uc)->uc_mcontext.__gregs, sizeof(__gregset_t));\
     65 	} while (/*CONSTCOND*/0)
     66 
     67 #define PTHREAD_REG_TO_UCONTEXT(uc, reg) do {				\
     68 	memcpy(&(uc)->uc_mcontext.__gregs, &(reg)->r_tstate, sizeof(__gregset_t));\
     69 	(uc)->uc_flags = ((uc)->uc_flags | _UC_CPU) & ~_UC_USER;       	\
     70 	} while (/*CONSTCOND*/0)
     71 
     72 #define PTHREAD_UCONTEXT_TO_FPREG(freg, uc)       			\
     73 	memcpy((freg), &(uc)->uc_mcontext.__fpregs,			\
     74 	    sizeof(struct fpreg))					\
     75 
     76 #define PTHREAD_FPREG_TO_UCONTEXT(uc, freg) do {       	       		\
     77 	memcpy(&(uc)->uc_mcontext.__fpregs, (freg),			\
     78 	    sizeof(struct fpreg));					\
     79 	(uc)->uc_flags = ((uc)->uc_flags | _UC_FPU) & ~_UC_USER;       	\
     80 	} while (/*CONSTCOND*/0)
     81 
     82 #endif /* _LIB_PTHREAD_SPARC64_MD_H */
     83 
     84