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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* This file contains all the type definitions necessary to
* define the equivalent of SVR4 struct ucontext.
*/
/* Definition for alternate stack */
typedef struct sigaltstack {
char *ss_sp;
int ss_size;
int ss_flags;
} stack_t;
/* Register window */
struct rwindow {
int rw_local[8]; /* locals */
int rw_in[8]; /* ins */
};
#define SPARC_MAXREGWINDOW 31 /* max windows in SPARC arch. */
struct gwindows {
int wbcnt;
int *spbuf[SPARC_MAXREGWINDOW];
struct rwindow wbuf[SPARC_MAXREGWINDOW];
};
typedef struct gwindows gwindows_t;
/* Floating point registers */
struct fpq {
unsigned long *fpq_addr; /* address */
unsigned long fpq_instr; /* instruction */
};
struct fq {
union { /* FPU inst/addr queue */
double whole;
struct fpq fpq;
} FQu;
};
struct fpu {
union { /* FPU floating point regs */
unsigned fpu_regs[32]; /* 32 singles */
double fpu_dregs[16]; /* 16 doubles */
} fpu_fr;
struct fq *fpu_q; /* ptr to array of FQ entries */
unsigned fpu_fsr; /* FPU status register */
unsigned char fpu_qcnt; /* # of entries in saved FQ */
unsigned char fpu_q_entrysize; /* # of bytes per FQ entry */
unsigned char fpu_en; /* flag signifying fpu in use */
};
typedef struct fpu fpregset_t;
/* Register set */
#define NGREG 19
typedef int gregset_t[NGREG];
typedef struct mcontext{
gregset_t gregs; /* general register set */
gwindows_t *gwins; /* POSSIBLE pointer to register windows */
fpregset_t fpregs; /* floating point register set */
long filler[21];
} mcontext_t;
typedef struct ucontext{
unsigned long uc_flags;
struct ucontext *uc_link;
unsigned long uc_sigmask[4];
stack_t uc_stack;
mcontext_t uc_mcontext;
long uc_filler[23];
} ucontext_t;
/* The following is needed by the setjmp/longjmp routines */
#define _ABI_JBLEN 12 /* _JBLEN from base */
/*
* The following structure MUST match the ABI size specifier _SIGJBLEN.
* This is 19 (words). The ABI value for _JBLEN is 12 (words).
* A sigset_t is 16 bytes and a stack_t is 12 bytes. The layout must
* match sigjmp_struct_t, defined in usr/src/lib/libc/inc/sigjmp_struct.h
*/
typedef struct setjmp_struct_t {
int sjs_flags; /* JBUF[ 0] */
int sjs_sp; /* JBUF[ 1] */
int sjs_pc; /* JBUF[ 2] */
int sjs_fp; /* JBUF[ 3] */
int sjs_i7; /* JBUF[ 4] */
void *sjs_uclink;
unsigned long sjs_pad[_ABI_JBLEN - 6];
unsigned long sjs_sigmask[4];
stack_t sjs_stack;
} setjmp_struct_t;
typedef struct o_setjmp_struct_t {
int sjs_flags; /* JBUF[ 0] */
int sjs_sp; /* JBUF[ 1] */
int sjs_pc; /* JBUF[ 2] */
unsigned long sjs_sigmask[3];
stack_t sjs_stack;
} o_setjmp_struct_t;
#define JB_SAVEMASK 0x1
#define UC_SIGMASK 001
#define UC_STACK 002
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