/usr/sparc64-linux-gnu/include/sys/ucontext.h is in libc6-dev-sparc64-cross 2.27-3ubuntu1cross1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 | /* Copyright (C) 1998-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef _SYS_UCONTEXT_H
#define _SYS_UCONTEXT_H 1
#include <features.h>
#include <bits/types/sigset_t.h>
#include <bits/types/stack_t.h>
#include <bits/wordsize.h>
#ifdef __USE_MISC
# define __ctx(fld) fld
#else
# define __ctx(fld) __ ## fld
#endif
#if __WORDSIZE == 64
#define __MC_NGREG 19
#ifdef __USE_MISC
# 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 __MC_NGREG
#endif
typedef unsigned long mc_greg_t;
typedef mc_greg_t mc_gregset_t[__MC_NGREG];
#ifdef __USE_MISC
# define MC_MAXFPQ 16
#endif
struct __mc_fq {
unsigned long *__ctx(mcfq_addr);
unsigned int __ctx(mcfq_insn);
};
typedef struct {
union {
unsigned int __ctx(sregs)[32];
unsigned long __ctx(dregs)[32];
long double __ctx(qregs)[16];
} __ctx(mcfpu_fregs);
unsigned long __ctx(mcfpu_fsr);
unsigned long __ctx(mcfpu_fprs);
unsigned long __ctx(mcfpu_gsr);
struct __mc_fq *__ctx(mcfpu_fq);
unsigned char __ctx(mcfpu_qcnt);
unsigned char __ctx(mcfpu_qentsz);
unsigned char __ctx(mcfpu_enab);
} mc_fpu_t;
typedef struct {
mc_gregset_t __ctx(mc_gregs);
mc_greg_t __ctx(mc_fp);
mc_greg_t __ctx(mc_i7);
mc_fpu_t __ctx(mc_fpregs);
} mcontext_t;
typedef struct ucontext_t {
struct ucontext_t *uc_link;
unsigned long __ctx(uc_flags);
unsigned long __uc_sigmask;
mcontext_t uc_mcontext;
stack_t uc_stack;
sigset_t uc_sigmask;
} ucontext_t;
#endif /* __WORDISIZE == 64 */
/*
* 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].
*/
#ifdef __USE_MISC
# define REG_PSR (0)
# define REG_PC (1)
# define REG_nPC (2)
# define REG_Y (3)
# define REG_G1 (4)
# define REG_G2 (5)
# define REG_G3 (6)
# define REG_G4 (7)
# define REG_G5 (8)
# define REG_G6 (9)
# define REG_G7 (10)
# define REG_O0 (11)
# define REG_O1 (12)
# define REG_O2 (13)
# define REG_O3 (14)
# define REG_O4 (15)
# define REG_O5 (16)
# define REG_O6 (17)
# define REG_O7 (18)
#endif
/*
* 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 ABI defines it absolutely to be 21 (resp. 19).
*/
#if __WORDSIZE == 64
# define __NGREG 21
# ifdef __USE_MISC
# define REG_ASI (19)
# define REG_FPRS (20)
# define NGREG __NGREG
# endif
typedef long greg_t;
#else /* __WORDSIZE == 32 */
# define __NGREG 19
# ifdef __USE_MISC
# define NGREG __NGREG
# endif
typedef int greg_t;
#endif /* __WORDSIZE == 32 */
typedef greg_t gregset_t[__NGREG];
/*
* The following structures define how a register window can appear on the
* stack. This structure is available (when required) through the `gwins'
* field of an mcontext (nested within ucontext). SPARC_MAXWINDOW is the
* maximum number of outstanding regiters window defined in the SPARC
* architecture (*not* implementation).
*/
# define __SPARC_MAXREGWINDOW 31 /* max windows in SPARC arch. */
#ifdef __USE_MISC
# define SPARC_MAXREGWINDOW __SPARC_MAXREGWINDOW
#endif
struct __rwindow
{
greg_t __ctx(rw_local)[8]; /* locals */
greg_t __ctx(rw_in)[8]; /* ins */
};
#ifdef __USE_MISC
# define rw_fp __ctx(rw_in)[6] /* frame pointer */
# define rw_rtn __ctx(rw_in)[7] /* return address */
#endif
typedef struct
{
int __ctx(wbcnt);
int *__ctx(spbuf)[__SPARC_MAXREGWINDOW];
struct __rwindow __ctx(wbuf)[__SPARC_MAXREGWINDOW];
} gwindows_t;
/*
* Floating point definitions.
*/
#ifdef __USE_MISC
# define MAXFPQ 16 /* max # of fpu queue entries currently supported */
#endif
/*
* 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 long *__ctx(fpq_addr); /* address */
unsigned long __ctx(fpq_instr); /* instruction */
};
struct __fq
{
union /* FPU inst/addr queue */
{
double __ctx(whole);
struct __fpq __ctx(fpq);
} __ctx(FQu);
};
#ifdef __USE_MISC
# define FPU_REGS_TYPE unsigned
# define FPU_DREGS_TYPE unsigned long long
# define V7_FPU_FSR_TYPE unsigned
# define V9_FPU_FSR_TYPE unsigned long long
# define V9_FPU_FPRS_TYPE unsigned
#endif
#if __WORDSIZE == 64
typedef struct
{
union { /* FPU floating point regs */
unsigned __ctx(fpu_regs)[32]; /* 32 singles */
double __ctx(fpu_dregs)[32]; /* 32 doubles */
long double __ctx(fpu_qregs)[16]; /* 16 quads */
} __ctx(fpu_fr);
struct __fq *__ctx(fpu_q); /* ptr to array of FQ entries */
unsigned long __ctx(fpu_fsr); /* FPU status register */
unsigned char __ctx(fpu_qcnt); /* # of entries in saved FQ */
unsigned char __ctx(fpu_q_entrysize); /* # of bytes per FQ entry */
unsigned char __ctx(fpu_en); /* flag signifying fpu in use */
} fpregset_t;
#else /* __WORDSIZE == 32 */
typedef struct
{
union { /* FPU floating point regs */
__extension__ unsigned long long __ctx(fpu_regs)[32]; /* 32 singles */
double __ctx(fpu_dregs)[16]; /* 16 doubles */
} __ctx(fpu_fr);
struct __fq *__ctx(fpu_q); /* ptr to array of FQ entries */
unsigned __ctx(fpu_fsr); /* FPU status register */
unsigned char __ctx(fpu_qcnt); /* # of entries in saved FQ */
unsigned char __ctx(fpu_q_entrysize); /* # of bytes per FQ entry */
unsigned char __ctx(fpu_en); /* flag signifying fpu in use */
} fpregset_t;
/*
* 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 __ctx(xrs_id); /* indicates xrs_ptr validity */
void * __ctx(xrs_ptr); /* ptr to extra reg state */
} xrs_t;
#ifdef __USE_MISC
# define XRS_ID 0x78727300 /* the string "xrs" */
#endif
typedef struct
{
gregset_t __ctx(gregs); /* general register set */
gwindows_t *__ctx(gwins); /* POSSIBLE pointer to register
windows */
fpregset_t __ctx(fpregs); /* floating point register set */
xrs_t __ctx(xrs); /* POSSIBLE extra register state
association */
long __glibc_reserved1[19];
} mcontext_t;
/* Userlevel context. */
typedef struct ucontext_t
{
unsigned long __ctx(uc_flags);
struct ucontext_t *uc_link;
sigset_t uc_sigmask;
stack_t uc_stack;
mcontext_t uc_mcontext;
} ucontext_t;
#endif /* __WORDSIZE == 32 */
#endif /* sys/ucontext.h */
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