1 /* $NetBSD: mcontext.h,v 1.11 2024/05/18 00:37:41 thorpej Exp $ */ 2 3 #ifndef _SPARC64_MCONTEXT_H_ 4 #define _SPARC64_MCONTEXT_H_ 5 6 #include <sparc/mcontext.h> 7 8 #define _NGREG32 19 /* %psr, pc, npc, %g1-7, %o0-7 */ 9 typedef int __greg32_t; 10 typedef __greg32_t __gregset32_t[_NGREG32]; 11 12 typedef unsigned int netbsd32___greg32p_t; 13 typedef unsigned int netbsd32___fqp_t; 14 typedef unsigned int netbsd32___gwindows32p_t; 15 16 #define _REG32_PSR 0 17 #define _REG32_PC 1 18 #define _REG32_nPC 2 19 #define _REG32_Y 3 20 #define _REG32_G1 4 21 #define _REG32_G2 5 22 #define _REG32_G3 6 23 #define _REG32_G4 7 24 #define _REG32_G5 8 25 #define _REG32_G6 9 26 #define _REG32_G7 10 27 #define _REG32_O0 11 28 #define _REG32_O1 12 29 #define _REG32_O2 13 30 #define _REG32_O3 14 31 #define _REG32_O4 15 32 #define _REG32_O5 16 33 #define _REG32_O6 17 34 #define _REG32_O7 18 35 36 /* Layout of a register window. */ 37 typedef struct { 38 __greg32_t __rw_local[8]; /* %l0-7 */ 39 __greg32_t __rw_in[8]; /* %i0-7 */ 40 } __rwindow32_t; 41 42 /* Description of available register windows. */ 43 typedef struct { 44 int __wbcnt; 45 netbsd32___greg32p_t __spbuf[_SPARC_MAXREGWINDOW]; 46 __rwindow32_t __wbuf[_SPARC_MAXREGWINDOW]; 47 } __gwindows32_t; 48 49 /* FPU state description */ 50 typedef struct { 51 union { 52 unsigned int __fpu_regs[32]; 53 double __fpu_dregs[16]; 54 } __fpu_fr; /* FPR contents */ 55 netbsd32___fqp_t __fpu_q; /* pointer to FPU insn queue */ 56 unsigned int __fpu_fsr; /* %fsr */ 57 unsigned char __fpu_qcnt; /* # entries in __fpu_q */ 58 unsigned char __fpu_q_entrysize; /* size of a __fpu_q entry */ 59 unsigned char __fpu_en; /* this context valid? */ 60 } __fpregset32_t; 61 62 /* `Extra Register State'(?) */ 63 typedef struct { 64 unsigned int __xrs_id; /* See below */ 65 unsigned int __xrs_ptr; /* points into filler area */ 66 } __xrs32_t; 67 68 typedef struct { 69 __gregset32_t __gregs; /* GPR state */ 70 netbsd32___gwindows32p_t __gwins;/* may point to register windows */ 71 __fpregset32_t __fpregs; /* FPU state, if any */ 72 __xrs32_t __xrs; /* may indicate extra reg state */ 73 } mcontext32_t; 74 75 #define _UC_SETSTACK _UC_MD_BIT16 76 #define _UC_CLRSTACK _UC_MD_BIT17 77 #define _UC_TLSBASE _UC_MD_BIT19 78 79 #define _UC_MACHINE32_PAD 43 /* compat_netbsd32 variant */ 80 #define _UC_MACHINE32_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_O6]) 81 #define _UC_MACHINE32_FP(uc) (((__greg32_t *)_UC_MACHINE32_SP(uc))[15]) 82 83 #endif /* _SPARC64_MCONTEXT_H_ */ 84