263 lines
5.7 KiB
C
263 lines
5.7 KiB
C
/* Copyright (C) 2001-2021 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _SYS_UCONTEXT_H
|
|
#define _SYS_UCONTEXT_H 1
|
|
|
|
#include <features.h>
|
|
|
|
#include <bits/types.h>
|
|
#include <bits/types/sigset_t.h>
|
|
#include <bits/types/stack_t.h>
|
|
|
|
|
|
#ifdef __USE_MISC
|
|
# define __ctx(fld) fld
|
|
#else
|
|
# define __ctx(fld) __ ## fld
|
|
#endif
|
|
|
|
#ifdef __x86_64__
|
|
|
|
/* Type for general register. */
|
|
__extension__ typedef long long int greg_t;
|
|
|
|
/* Number of general registers. */
|
|
#define __NGREG 23
|
|
#ifdef __USE_MISC
|
|
# define NGREG __NGREG
|
|
#endif
|
|
|
|
/* Container for all general registers. */
|
|
typedef greg_t gregset_t[__NGREG];
|
|
|
|
#ifdef __USE_GNU
|
|
/* Number of each register in the `gregset_t' array. */
|
|
enum
|
|
{
|
|
REG_R8 = 0,
|
|
# define REG_R8 REG_R8
|
|
REG_R9,
|
|
# define REG_R9 REG_R9
|
|
REG_R10,
|
|
# define REG_R10 REG_R10
|
|
REG_R11,
|
|
# define REG_R11 REG_R11
|
|
REG_R12,
|
|
# define REG_R12 REG_R12
|
|
REG_R13,
|
|
# define REG_R13 REG_R13
|
|
REG_R14,
|
|
# define REG_R14 REG_R14
|
|
REG_R15,
|
|
# define REG_R15 REG_R15
|
|
REG_RDI,
|
|
# define REG_RDI REG_RDI
|
|
REG_RSI,
|
|
# define REG_RSI REG_RSI
|
|
REG_RBP,
|
|
# define REG_RBP REG_RBP
|
|
REG_RBX,
|
|
# define REG_RBX REG_RBX
|
|
REG_RDX,
|
|
# define REG_RDX REG_RDX
|
|
REG_RAX,
|
|
# define REG_RAX REG_RAX
|
|
REG_RCX,
|
|
# define REG_RCX REG_RCX
|
|
REG_RSP,
|
|
# define REG_RSP REG_RSP
|
|
REG_RIP,
|
|
# define REG_RIP REG_RIP
|
|
REG_EFL,
|
|
# define REG_EFL REG_EFL
|
|
REG_CSGSFS, /* Actually short cs, gs, fs, __pad0. */
|
|
# define REG_CSGSFS REG_CSGSFS
|
|
REG_ERR,
|
|
# define REG_ERR REG_ERR
|
|
REG_TRAPNO,
|
|
# define REG_TRAPNO REG_TRAPNO
|
|
REG_OLDMASK,
|
|
# define REG_OLDMASK REG_OLDMASK
|
|
REG_CR2
|
|
# define REG_CR2 REG_CR2
|
|
};
|
|
#endif
|
|
|
|
struct _libc_fpxreg
|
|
{
|
|
unsigned short int __ctx(significand)[4];
|
|
unsigned short int __ctx(exponent);
|
|
unsigned short int __glibc_reserved1[3];
|
|
};
|
|
|
|
struct _libc_xmmreg
|
|
{
|
|
__uint32_t __ctx(element)[4];
|
|
};
|
|
|
|
struct _libc_fpstate
|
|
{
|
|
/* 64-bit FXSAVE format. */
|
|
__uint16_t __ctx(cwd);
|
|
__uint16_t __ctx(swd);
|
|
__uint16_t __ctx(ftw);
|
|
__uint16_t __ctx(fop);
|
|
__uint64_t __ctx(rip);
|
|
__uint64_t __ctx(rdp);
|
|
__uint32_t __ctx(mxcsr);
|
|
__uint32_t __ctx(mxcr_mask);
|
|
struct _libc_fpxreg _st[8];
|
|
struct _libc_xmmreg _xmm[16];
|
|
__uint32_t __glibc_reserved1[24];
|
|
};
|
|
|
|
/* Structure to describe FPU registers. */
|
|
typedef struct _libc_fpstate *fpregset_t;
|
|
|
|
/* Context to describe whole processor state. */
|
|
typedef struct
|
|
{
|
|
gregset_t __ctx(gregs);
|
|
/* Note that fpregs is a pointer. */
|
|
fpregset_t __ctx(fpregs);
|
|
__extension__ unsigned long long __reserved1 [8];
|
|
} mcontext_t;
|
|
|
|
/* Userlevel context. */
|
|
typedef struct ucontext_t
|
|
{
|
|
unsigned long int __ctx(uc_flags);
|
|
struct ucontext_t *uc_link;
|
|
stack_t uc_stack;
|
|
mcontext_t uc_mcontext;
|
|
sigset_t uc_sigmask;
|
|
struct _libc_fpstate __fpregs_mem;
|
|
__extension__ unsigned long long int __ssp[4];
|
|
} ucontext_t;
|
|
|
|
#else /* !__x86_64__ */
|
|
|
|
/* Type for general register. */
|
|
typedef int greg_t;
|
|
|
|
/* Number of general registers. */
|
|
#define __NGREG 19
|
|
#ifdef __USE_MISC
|
|
# define NGREG __NGREG
|
|
#endif
|
|
|
|
/* Container for all general registers. */
|
|
typedef greg_t gregset_t[__NGREG];
|
|
|
|
#ifdef __USE_GNU
|
|
/* Number of each register is the `gregset_t' array. */
|
|
enum
|
|
{
|
|
REG_GS = 0,
|
|
# define REG_GS REG_GS
|
|
REG_FS,
|
|
# define REG_FS REG_FS
|
|
REG_ES,
|
|
# define REG_ES REG_ES
|
|
REG_DS,
|
|
# define REG_DS REG_DS
|
|
REG_EDI,
|
|
# define REG_EDI REG_EDI
|
|
REG_ESI,
|
|
# define REG_ESI REG_ESI
|
|
REG_EBP,
|
|
# define REG_EBP REG_EBP
|
|
REG_ESP,
|
|
# define REG_ESP REG_ESP
|
|
REG_EBX,
|
|
# define REG_EBX REG_EBX
|
|
REG_EDX,
|
|
# define REG_EDX REG_EDX
|
|
REG_ECX,
|
|
# define REG_ECX REG_ECX
|
|
REG_EAX,
|
|
# define REG_EAX REG_EAX
|
|
REG_TRAPNO,
|
|
# define REG_TRAPNO REG_TRAPNO
|
|
REG_ERR,
|
|
# define REG_ERR REG_ERR
|
|
REG_EIP,
|
|
# define REG_EIP REG_EIP
|
|
REG_CS,
|
|
# define REG_CS REG_CS
|
|
REG_EFL,
|
|
# define REG_EFL REG_EFL
|
|
REG_UESP,
|
|
# define REG_UESP REG_UESP
|
|
REG_SS
|
|
# define REG_SS REG_SS
|
|
};
|
|
#endif
|
|
|
|
/* Definitions taken from the kernel headers. */
|
|
struct _libc_fpreg
|
|
{
|
|
unsigned short int __ctx(significand)[4];
|
|
unsigned short int __ctx(exponent);
|
|
};
|
|
|
|
struct _libc_fpstate
|
|
{
|
|
unsigned long int __ctx(cw);
|
|
unsigned long int __ctx(sw);
|
|
unsigned long int __ctx(tag);
|
|
unsigned long int __ctx(ipoff);
|
|
unsigned long int __ctx(cssel);
|
|
unsigned long int __ctx(dataoff);
|
|
unsigned long int __ctx(datasel);
|
|
struct _libc_fpreg _st[8];
|
|
unsigned long int __ctx(status);
|
|
};
|
|
|
|
/* Structure to describe FPU registers. */
|
|
typedef struct _libc_fpstate *fpregset_t;
|
|
|
|
/* Context to describe whole processor state. */
|
|
typedef struct
|
|
{
|
|
gregset_t __ctx(gregs);
|
|
/* Due to Linux's history we have to use a pointer here. The SysV/i386
|
|
ABI requires a struct with the values. */
|
|
fpregset_t __ctx(fpregs);
|
|
unsigned long int __ctx(oldmask);
|
|
unsigned long int __ctx(cr2);
|
|
} mcontext_t;
|
|
|
|
/* Userlevel context. */
|
|
typedef struct ucontext_t
|
|
{
|
|
unsigned long int __ctx(uc_flags);
|
|
struct ucontext_t *uc_link;
|
|
stack_t uc_stack;
|
|
mcontext_t uc_mcontext;
|
|
sigset_t uc_sigmask;
|
|
struct _libc_fpstate __fpregs_mem;
|
|
unsigned long int __ssp[4];
|
|
} ucontext_t;
|
|
|
|
#endif /* !__x86_64__ */
|
|
|
|
#undef __ctx
|
|
|
|
#endif /* sys/ucontext.h */
|