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pthread_md.h revision 1.4.20.1 
      1 /*	$NetBSD: pthread_md.h,v 1.4.20.1 2008/05/18 12:30:42 yamt 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  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _LIB_PTHREAD_SPARC64_MD_H
     30 #define _LIB_PTHREAD_SPARC64_MD_H
     31 
     32 /*
     33  * pthread__sp used for identifying thread
     34  */
     35 static inline long
     36 pthread__sp(void)
     37 {
     38 	long ret;
     39 
     40 	__asm("mov %%sp, %0" : "=r" (ret));
     41 
     42 	return ret;
     43 }
     44 
     45 #define pthread__uc_sp(ucp) ((ucp)->uc_mcontext.__gregs[_REG_O6])
     46 #define pthread__uc_pc(ucp) ((ucp)->uc_mcontext.__gregs[_REG_PC])
     47 
     48 #define STACKSPACE 176	/* min stack frame XXX */
     49 
     50 /*
     51  * Conversions between struct reg and struct mcontext. Used by
     52  * libpthread_dbg.
     53  * XXX macros
     54  */
     55 
     56 #define PTHREAD_UCONTEXT_TO_REG(reg, uc) do {				\
     57 	memcpy(&(reg)->r_tstate, &(uc)->uc_mcontext.__gregs, 		\
     58 	    _REG_Y * sizeof(__greg_t));					\
     59 	(reg)->r_y = (uc)->uc_mcontext.__gregs[_REG_Y];			\
     60 	memcpy(&(reg)->r_global[1], &(uc)->uc_mcontext.__gregs[_REG_G1],\
     61 	    (_REG_O7 - _REG_G1 + 1) * sizeof(__greg_t));		\
     62 	(reg)->r_global[0] = 0; 					\
     63 	} while (/*CONSTCOND*/0)
     64 
     65 #define PTHREAD_REG_TO_UCONTEXT(uc, reg) do {				\
     66 	memcpy(&(uc)->uc_mcontext.__gregs, &(reg)->r_tstate,		\
     67 	    _REG_Y * sizeof(__greg_t));					\
     68 	(uc)->uc_mcontext.__gregs[_REG_Y] = (reg)->r_y;			\
     69 	memcpy(&(uc)->uc_mcontext.__gregs[_REG_G1], &(reg)->r_global[1],\
     70 	    (_REG_O7 - _REG_G1 + 1) * sizeof(__greg_t));		\
     71 	(uc)->uc_flags = ((uc)->uc_flags | _UC_CPU) & ~_UC_USER;       	\
     72 	} while (/*CONSTCOND*/0)
     73 
     74 #define PTHREAD_UCONTEXT_TO_FPREG(freg, uc) do {			\
     75 	memcpy((freg)->fr_regs,						\
     76 	    &(uc)->uc_mcontext.__fpregs.__fpu_fr.__fpu_dregs,		\
     77 	    32*sizeof(double));						\
     78 	(freg)->fr_fsr = (uc)->uc_mcontext.__fpregs.__fpu_fsr;		\
     79 	} while (/*CONSTCOND*/0)
     80 
     81 #define PTHREAD_FPREG_TO_UCONTEXT(uc, freg) do {       	       		\
     82 	memcpy(&(uc)->uc_mcontext.__fpregs.__fpu_fr.__fpu_dregs,	\
     83 	    (freg)->fr_regs,						\
     84 	    32*sizeof(double));						\
     85 	(uc)->uc_mcontext.__fpregs.__fpu_fsr = (freg)->fr_fsr;		\
     86 	(uc)->uc_flags = ((uc)->uc_flags | _UC_FPU) & ~_UC_USER;       	\
     87 	} while (/*CONSTCOND*/0)
     88 
     89 #ifdef __PTHREAD_SIGNAL_PRIVATE
     90 #include <machine/psl.h>
     91 #endif
     92 
     93 #endif /* _LIB_PTHREAD_SPARC64_MD_H */
     94