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Add mcontext32_t and friends. This is WIP.

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This commit is contained in:
christos 2003-10-13 23:45:14 +00:00
parent 359109cff2
commit d0e3551301
1 changed files with 66 additions and 1 deletions
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67
sys/arch/sparc64/include/mcontext.h
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@ -1,3 +1,68 @@
/* $NetBSD: mcontext.h,v 1.2 2003/01/18 06:55:21 thorpej Exp $ */
/* $NetBSD: mcontext.h,v 1.3 2003/10/13 23:45:14 christos Exp $ */
#ifndef _SPARC64_MCONTEXT_H_
#define _SPARC64_MCONTEXT_H_
#include <sparc/mcontext.h>
#define _NGREG32 19 /* %psr, pc, npc, %g1-7, %o0-7 */
typedef int __greg32_t;
typedef __greg32_t __gregset32_t[_NGREG32];
#define _REG32_PSR 0
#define _REG32_PC 1
#define _REG32_nPC 2
#define _REG32_Y 3
#define _REG32_G1 4
#define _REG32_G2 5
#define _REG32_G3 6
#define _REG32_G4 7
#define _REG32_G5 8
#define _REG32_G6 9
#define _REG32_G7 10
#define _REG32_O0 11
#define _REG32_O1 12
#define _REG32_O2 13
#define _REG32_O3 14
#define _REG32_O4 15
#define _REG32_O5 16
#define _REG32_O6 17
#define _REG32_O7 18
/* Layout of a register window. */
typedef struct {
__greg32_t __rw_local[8]; /* %l0-7 */
__greg32_t __rw_in[8]; /* %i0-7 */
} __rwindow32_t;
/* Description of available register windows. */
typedef struct {
int __wbcnt;
__greg32_t * __spbuf[_SPARC_MAXREGWINDOW];
__rwindow32_t __wbuf[_SPARC_MAXREGWINDOW];
} __gwindows32_t;
/* FPU state description */
typedef struct {
union {
unsigned int __fpu_regs[32];
double __fpu_dregs[16];
} __fpu_fr; /* FPR contents */
struct __fq * __fpu_q; /* pointer to FPU insn queue */
unsigned int __fpu_fsr; /* %fsr */
unsigned char __fpu_qcnt; /* # entries in __fpu_q */
unsigned char __fpu_q_entrysize; /* size of a __fpu_q entry */
unsigned char __fpu_en; /* this context valid? */
} __fpregset32_t;
typedef struct {
__gregset32_t __gregs; /* GPR state */
__gwindows32_t *__gwins; /* may point to register windows */
__fpregset32_t __fpregs; /* FPU state, if any */
__xrs_t __xrs; /* may indicate extra reg state */
} mcontext32_t;
#define _UC_MACHINE32_PAD_32 /* Padding appended to ucontext_t */
#define _UC_MACHINE32_SP(uc) ((uc)->uc_mcontext.__gregs[_REG32_O6])
#endif /* _SPARC64_MCONTEXT_H_ */