uctx.h

Go to the documentation of this file.

/*
 * uctx.h: Sparc64 {set,get}context() register state layouts.
 *
 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
 */

#ifndef __SPARC64_UCTX_H
#define __SPARC64_UCTX_H

#define MC_TSTATE   0
#define MC_PC       1
#define MC_NPC      2
#define MC_Y        3
#define MC_G1       4
#define MC_G2       5
#define MC_G3       6
#define MC_G4       7
#define MC_G5       8
#define MC_G6       9
#define MC_G7       10
#define MC_O0       11
#define MC_O1       12
#define MC_O2       13
#define MC_O3       14
#define MC_O4       15
#define MC_O5       16
#define MC_O6       17
#define MC_O7       18
#define MC_NGREG    19

typedef unsigned long mc_greg_t;
typedef mc_greg_t mc_gregset_t[MC_NGREG];

#define MC_MAXFPQ   16
struct mc_fq {
    unsigned long   *mcfq_addr;
    unsigned int    mcfq_insn;
};

struct mc_fpu {
    union {
        unsigned int    sregs[32];
        unsigned long   dregs[32];
        long double qregs[16];
    } mcfpu_fregs;
    unsigned long   mcfpu_fsr;
    unsigned long   mcfpu_fprs;
    unsigned long   mcfpu_gsr;
    struct mc_fq    *mcfpu_fq;
    unsigned char   mcfpu_qcnt;
    unsigned char   mcfpu_qentsz;
    unsigned char   mcfpu_enab;
};
typedef struct mc_fpu mc_fpu_t;

typedef struct {
    mc_gregset_t    mc_gregs;
    mc_greg_t   mc_fp;
    mc_greg_t   mc_i7;
    mc_fpu_t    mc_fpregs;
} mcontext_t;

struct ucontext {
    struct ucontext     *uc_link;
    unsigned long       uc_flags;
    sigset_t        uc_sigmask;
    mcontext_t      uc_mcontext;
};
typedef struct ucontext ucontext_t;

#endif /* __SPARC64_UCTX_H */