diff options
Diffstat (limited to 'usr/src/uts/sparc/sys/regset.h')
| -rw-r--r-- | usr/src/uts/sparc/sys/regset.h | 427 |
1 files changed, 10 insertions, 417 deletions
diff --git a/usr/src/uts/sparc/sys/regset.h b/usr/src/uts/sparc/sys/regset.h index 26e7119a38..cebf5939a3 100644 --- a/usr/src/uts/sparc/sys/regset.h +++ b/usr/src/uts/sparc/sys/regset.h @@ -23,6 +23,8 @@ /* + * Copyright 2015 Nexenta Systems, Inc. All rights reserved. + * * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ @@ -30,13 +32,12 @@ #ifndef _SYS_REGSET_H #define _SYS_REGSET_H -#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.1 */ - #include <sys/feature_tests.h> #if !defined(_ASM) #include <sys/int_types.h> #endif +#include <sys/mcontext.h> #ifdef __cplusplus extern "C" { @@ -46,8 +47,6 @@ extern "C" { * Location of the users' stored registers relative to R0. * Usage is as an index into a gregset_t array or as u.u_ar0[XX]. */ -#if !defined(_XPG4_2) || defined(__EXTENSIONS__) - #if defined(__sparcv9) #define REG_CCR (0) #if defined(_SYSCALL32) @@ -87,53 +86,12 @@ extern "C" { #define REG_SP REG_O6 #define REG_R0 REG_O0 #define REG_R1 REG_O1 -#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ - -/* - * A gregset_t is defined as an array type for compatibility with the reference - * source. This is important due to differences in the way the C language - * treats arrays and structures as parameters. - * - * Note that NGREG is really (sizeof (struct regs) / sizeof (greg_t)), - * but that the SPARC V8 ABI defines it absolutely to be 19. - */ -#if defined(__sparcv9) -#define _NGREG 21 -#else /* __sparcv9 */ -#define _NGREG 19 -#endif /* __sparcv9 */ -#if !defined(_XPG4_2) || defined(__EXTENSIONS__) -#define NGREG _NGREG -#endif #ifndef _ASM -#if defined(_LP64) || defined(_I32LPx) -typedef long greg_t; -#else -typedef int greg_t; -#endif - -#if defined(_SYSCALL32) - -typedef int32_t greg32_t; -typedef int64_t greg64_t; - -#endif /* _SYSCALL32 */ - -typedef greg_t gregset_t[_NGREG]; - -#if defined(_SYSCALL32) - -#define _NGREG32 19 -#define _NGREG64 21 - -typedef greg32_t gregset32_t[_NGREG32]; -typedef greg64_t gregset64_t[_NGREG64]; - -#endif /* _SYSCALL32 */ +#define NGREG _NGREG +#define MAXFPQ _MAXFPQ -#if !defined(_XPG4_2) || defined(__EXTENSIONS__) /* * The following structures define how a register window can appear on the * stack. This structure is available (when required) through the `gwins' @@ -143,7 +101,7 @@ typedef greg64_t gregset64_t[_NGREG64]; */ #define SPARC_MAXREGWINDOW 31 /* max windows in SPARC arch. */ -struct rwindow { +struct rwindow { greg_t rw_local[8]; /* locals */ greg_t rw_in[8]; /* ins */ }; @@ -170,7 +128,7 @@ extern void rwindow_32ton(struct rwindow32 *, struct rwindow *); #define rw_fp rw_in[6] /* frame pointer */ #define rw_rtn rw_in[7] /* return address */ -typedef struct gwindows { +typedef struct _gwindows { int wbcnt; greg_t *spbuf[SPARC_MAXREGWINDOW]; struct rwindow wbuf[SPARC_MAXREGWINDOW]; @@ -192,62 +150,6 @@ typedef struct gwindows64 { #endif /* _SYSCALL32 */ - -/* - * Floating point definitions. - */ - -#define MAXFPQ 16 /* max # of fpu queue entries currently supported */ - -/* - * struct fq defines the minimal format of a floating point instruction queue - * entry. The size of entries in the floating point queue are implementation - * dependent. The union FQu is guarenteed to be the first field in any ABI - * conformant system implementation. Any additional fields provided by an - * implementation should not be used applications designed to be ABI conformant. - */ - -struct fpq { - unsigned int *fpq_addr; /* address */ - unsigned int fpq_instr; /* instruction */ -}; - -struct fq { - union { /* FPU inst/addr queue */ - double whole; - struct fpq fpq; - } FQu; -}; - -#if defined(_SYSCALL32) - -struct fpq32 { - caddr32_t fpq_addr; /* address */ - uint32_t fpq_instr; /* instruction */ -}; - -struct fq32 { - union { /* FPU inst/addr queue */ - double whole; - struct fpq32 fpq; - } FQu; -}; - -#endif /* _SYSCALL32 */ - -/* - * struct fpu is the floating point processor state. struct fpu is the sum - * total of all possible floating point state which includes the state of - * external floating point hardware, fpa registers, etc..., if it exists. - * - * A floating point instuction queue may or may not be associated with - * the floating point processor state. If a queue does exist, the field - * fpu_q will point to an array of fpu_qcnt entries where each entry is - * fpu_q_entrysize long. fpu_q_entry has a lower bound of sizeof (union FQu) - * and no upper bound. If no floating point queue entries are associated - * with the processor state, fpu_qcnt will be zeo and fpu_q will be NULL. - */ - /* * The following #define's are obsolete and may be removed in a future release. * The corresponding integer types should be used instead (i.e. uint64_t). @@ -258,160 +160,9 @@ struct fq32 { #define V9_FPU_FSR_TYPE uint64_t #define V9_FPU_FPRS_TYPE uint32_t -#if defined(__sparcv9) - -struct fpu { - union { /* FPU floating point regs */ - uint32_t fpu_regs[32]; /* 32 singles */ - double fpu_dregs[32]; /* 32 doubles */ - long double fpu_qregs[16]; /* 16 quads */ - } fpu_fr; - struct fq *fpu_q; /* ptr to array of FQ entries */ - uint64_t fpu_fsr; /* FPU status register */ - uint8_t fpu_qcnt; /* # of entries in saved FQ */ - uint8_t fpu_q_entrysize; /* # of bytes per FQ entry */ - uint8_t fpu_en; /* flag specifying fpu in use */ -}; - -#else /* __sparcv9 */ - -struct fpu { - union { /* FPU floating point regs */ - uint32_t fpu_regs[32]; /* 32 singles */ - double fpu_dregs[16]; /* 16 doubles */ - } fpu_fr; - struct fq *fpu_q; /* ptr to array of FQ entries */ - uint32_t fpu_fsr; /* FPU status register */ - uint8_t fpu_qcnt; /* # of entries in saved FQ */ - uint8_t fpu_q_entrysize; /* # of bytes per FQ entry */ - uint8_t fpu_en; /* flag signifying fpu in use */ -}; - -#endif /* __sparcv9 */ - -typedef struct fpu fpregset_t; - -#if defined(_SYSCALL32) - -/* Kernel view of user sparcv7/v8 fpu structure */ - -struct fpu32 { - union { /* FPU floating point regs */ - uint32_t fpu_regs[32]; /* 32 singles */ - double fpu_dregs[16]; /* 16 doubles */ - } fpu_fr; - caddr32_t fpu_q; /* ptr to array of FQ entries */ - uint32_t fpu_fsr; /* FPU status register */ - uint8_t fpu_qcnt; /* # of entries in saved FQ */ - uint8_t fpu_q_entrysize; /* # of bytes per FQ entry */ - uint8_t fpu_en; /* flag signifying fpu in use */ -}; - -typedef struct fpu32 fpregset32_t; - -#endif /* _SYSCALL32 */ +#define XRS_ID _XRS_ID -#if defined(_KERNEL) || defined(_KMDB) -/* - * The ABI uses struct fpu, so we use this to describe the kernel's view of the - * fpu. - */ -typedef struct { - union _fpu_fr { /* V9 FPU floating point regs */ - uint32_t fpu_regs[32]; /* 32 singles */ - uint64_t fpu_dregs[32]; /* 32 doubles */ - long double fpu_qregs[16]; /* 16 quads */ - } fpu_fr; - uint64_t fpu_fsr; /* FPU status register */ - uint32_t fpu_fprs; /* fprs register */ - struct fq *fpu_q; - uint8_t fpu_qcnt; - uint8_t fpu_q_entrysize; - uint8_t fpu_en; /* flag signifying fpu in use */ -} kfpu_t; -#endif /* _KERNEL || _KMDB */ - -/* - * The following structure is for associating extra register state with - * the ucontext structure and is kept within the uc_mcontext filler area. - * - * If (xrs_id == XRS_ID) then the xrs_ptr field is a valid pointer to - * extra register state. The exact format of the extra register state - * pointed to by xrs_ptr is platform-dependent. - * - * Note: a platform may or may not manage extra register state. - */ -typedef struct { - unsigned int xrs_id; /* indicates xrs_ptr validity */ - caddr_t xrs_ptr; /* ptr to extra reg state */ -} xrs_t; - -#define XRS_ID 0x78727300 /* the string "xrs" */ - -#if defined(_SYSCALL32) - -typedef struct { - uint32_t xrs_id; /* indicates xrs_ptr validity */ - caddr32_t xrs_ptr; /* ptr to extra reg state */ -} xrs32_t; - -#endif /* _SYSCALL32 */ - -#if defined(__sparcv9) - -/* - * Ancillary State Registers - * - * The SPARC V9 architecture defines 25 ASRs, numbered from 7 through 31. - * ASRs 16 through 31 are available to user programs, though the meaning - * and content of these registers is implementation dependent. - */ -typedef int64_t asrset_t[16]; /* %asr16 - > %asr31 */ - -#endif /* __sparcv9 */ - -/* - * Structure mcontext defines the complete hardware machine state. If - * the field `gwins' is non NULL, it points to a save area for register - * window frames. If `gwins' is NULL, the register windows were saved - * on the user's stack. - * - * The filler of 21 longs is historical (now filler[19] plus the xrs_t - * field). The value was selected to provide binary compatibility with - * statically linked ICL binaries. It is in the ABI (do not change). It - * actually appears in the ABI as a single filler of 44 is in the field - * uc_filler of struct ucontext. It is split here so that ucontext.h can - * (hopefully) remain architecture independent. - * - * Note that 2 longs of the filler are used to hold extra register state info. - */ -typedef struct { - gregset_t gregs; /* general register set */ - gwindows_t *gwins; /* POSSIBLE pointer to register windows */ - fpregset_t fpregs; /* floating point register set */ - xrs_t xrs; /* POSSIBLE extra register state association */ -#if defined(__sparcv9) - asrset_t asrs; /* ancillary registers */ - long filler[4]; /* room for expansion */ -#else /* __sparcv9 */ - long filler[19]; -#endif /* __sparcv9 */ -} mcontext_t; - -#if defined(_SYSCALL32) - -typedef struct { - gregset32_t gregs; /* general register set */ - caddr32_t gwins; /* POSSIBLE pointer to register windows */ - fpregset32_t fpregs; /* floating point register set */ - xrs32_t xrs; /* POSSIBLE extra register state association */ - int32_t filler[19]; -} mcontext32_t; - -#endif /* _SYSCALL32 */ - -#endif /* !defined(_XPG4_2) || defined(__EXTENSIONS__) */ -#endif /* _ASM */ +#endif /* !_ASM */ /* * The version of privregs.h that is used on implementations that run @@ -428,7 +179,7 @@ typedef struct { * 'struct regs' to match the content of a 32-bit core file, or a ucontext_t. * * Note that the ucontext_t actually describes the general registers in - * terms of the gregset_t data type, as described in this file. Note also + * terms of the gregset_t data type, as described in mcontex.h. Note also * that the core file content is defined by core(4) in terms of data types * defined by procfs -- see proc(4). */ @@ -438,164 +189,6 @@ typedef struct { #endif /* !_KERNEL && !_XPG4_2 || __EXTENSIONS__ */ #endif /* __sparcv9 */ -/* - * The following is here for XPG4.2 standards compliance. - * regset.h is included in ucontext.h for the definition of - * mcontext_t, all of which breaks XPG4.2 namespace. - */ - -#if defined(_XPG4_2) && !defined(__EXTENSIONS__) -/* - * The following is here for UNIX 95 compliance (XPG Issue 4, Version 2 - * System Interfaces and Headers. The structures included here are identical - * to those visible elsewhere in this header except that the structure - * element names have been changed in accordance with the X/Open namespace - * rules. Specifically, depending on the name and scope, the names have - * been prepended with a single or double underscore (_ or __). See the - * structure definitions in the non-X/Open namespace for more detailed - * comments describing each of these structures. - */ - -#ifndef _ASM - -/* - * The following structures define how a register window can appear on the - * stack. - */ -#define _SPARC_MAXREGWINDOW 31 /* max windows in SPARC arch. */ - -struct __rwindow { - greg_t __rw_local[8]; /* locals */ - greg_t __rw_in[8]; /* ins */ -}; - -#define __rw_fp __rw_in[6] /* frame pointer */ -#define __rw_rtn __rw_in[7] /* return address */ - -struct __gwindows { - int __wbcnt; - greg_t *__spbuf[_SPARC_MAXREGWINDOW]; - struct __rwindow __wbuf[_SPARC_MAXREGWINDOW]; -}; - -typedef struct __gwindows gwindows_t; - -/* - * The fq structure defines the minimal format of a floating point - * instruction queue entry. - */ - -struct __fpq { - unsigned int *__fpq_addr; /* address */ - unsigned int __fpq_instr; /* instruction */ -}; - -struct __fq { - union { /* FPU inst/addr queue */ - double __whole; - struct __fpq __fpq; - } _FQu; -}; - -/* - * The fpu structure is the floating point processor state. - */ - -/* - * The following #define's are obsolete and may be removed in a future release. - * The corresponding integer types should be used instead (i.e. uint64_t). - */ -#define _FPU_REGS_TYPE uint32_t -#define _FPU_DREGS_TYPE uint64_t -#define _V7_FPU_FSR_TYPE uint32_t -#define _V9_FPU_FSR_TYPE uint64_t -#define _V9_FPU_FPRS_TYPE uint32_t - -#if defined(__sparcv9) - -/* - * SPARC Version 9 floating point - */ - -struct __fpu { - union { /* FPU floating point regs */ - uint32_t __fpu_regs[32]; /* 32 singles */ - double __fpu_dregs[32]; /* 32 doubles */ - long double __fpu_qregs[16]; /* 16 quads */ - } __fpu_fr; - struct __fq *__fpu_q; /* ptr to array of FQ entries */ - uint64_t __fpu_fsr; /* FPU status register */ - uint8_t __fpu_qcnt; /* # of entries in saved FQ */ - uint8_t __fpu_q_entrysize; /* # of bytes per FQ entry */ - uint8_t __fpu_en; /* flag signifying fpu in use */ -}; - -#else /* __sparcv9 */ - -/* - * SPARC Version 7 and 8 floating point - */ - -struct __fpu { - union { /* FPU floating point regs */ - uint32_t __fpu_regs[32]; /* 32 singles */ - double __fpu_dregs[16]; /* 16 doubles */ - } __fpu_fr; - struct __fq *__fpu_q; /* ptr to array of FQ entries */ - uint32_t __fpu_fsr; /* FPU status register */ - uint8_t __fpu_qcnt; /* # of entries in saved FQ */ - uint8_t __fpu_q_entrysize; /* # of bytes per FQ entry */ - uint8_t __fpu_en; /* flag signifying fpu in use */ -}; - -#endif /* __sparcv9 */ - -typedef struct __fpu fpregset_t; - -/* - * The xrs_t structure is for associating extra register state with - * the ucontext structure and is kept within the uc_mcontext filler area. - */ -typedef struct { - unsigned int __xrs_id; /* indicates xrs_ptr validity */ - caddr_t __xrs_ptr; /* ptr to extra reg state */ -} xrs_t; - -#define _XRS_ID 0x78727300 /* the string "xrs" */ - -#if defined(__sparcv9) - -/* - * Ancillary State Registers - * - * The SPARC V9 architecture defines 25 ASRs, numbered from 7 through 31. - * ASRs 16 through 31 are available to user programs, though the meaning - * and content of these registers is implementation dependent. - */ -typedef int64_t asrset_t[16]; /* %asr16 - > %asr31 */ - -#endif /* __sparcv9 */ - -/* - * Structure mcontext defines the complete hardware machine state. - */ -typedef struct { - gregset_t __gregs; /* general register set */ - gwindows_t *__gwins; /* POSSIBLE pointer to register windows */ - fpregset_t __fpregs; /* floating point register set */ - xrs_t __xrs; /* POSSIBLE extra register state association */ -#if defined(__sparcv9) - asrset_t __asrs; /* ancillary registers */ - long __filler[4]; /* room for expansion */ -#else /* __sparcv9 */ - long __filler[19]; -#endif /* __sparcv9 */ -} mcontext_t; - -#endif /* _ASM */ -#endif /* defined(_XPG4_2) && !defined(__EXTENSIONS__) */ - - #ifdef __cplusplus } #endif |