Permalink
Cannot retrieve contributors at this time
Name already in use
A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
glibc/sysdeps/unix/sysv/linux/x86_64/sys/ucontext.h
Go to fileThis commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
244 lines (215 sloc)
5.25 KB
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* Copyright (C) 2001, 2002 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, write to the Free | |
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
02111-1307 USA. */ | |
#ifndef _SYS_UCONTEXT_H | |
#define _SYS_UCONTEXT_H 1 | |
#include <features.h> | |
#include <signal.h> | |
#include <bits/wordsize.h> | |
/* We need the signal context definitions even if they are not used | |
included in <signal.h>. */ | |
#include <bits/sigcontext.h> | |
#if __WORDSIZE == 64 | |
/* Type for general register. */ | |
typedef long int greg_t; | |
/* Number of general registers. */ | |
#define NGREG 21 | |
/* 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 | |
}; | |
#endif | |
struct _libc_fpxreg | |
{ | |
unsigned short int significand[4]; | |
unsigned short int exponent; | |
unsigned short int padding[3]; | |
}; | |
struct _libc_xmmreg | |
{ | |
__uint32_t element[4]; | |
}; | |
struct _libc_fpstate | |
{ | |
/* 64-bit FXSAVE format. */ | |
__uint16_t cwd; | |
__uint16_t swd; | |
__uint16_t ftw; | |
__uint16_t fop; | |
__uint64_t rip; | |
__uint64_t rdp; | |
__uint32_t mxcsr; | |
__uint32_t mxcr_mask; | |
struct _libc_fpxreg _st[8]; | |
struct _libc_xmmreg _xmm[16]; | |
__uint32_t padding[24]; | |
}; | |
/* Structure to describe FPU registers. */ | |
typedef struct _libc_fpstate *fpregset_t; | |
/* Context to describe whole processor state. */ | |
typedef struct | |
{ | |
gregset_t gregs; | |
/* Note that fpregs is a pointer. */ | |
fpregset_t fpregs; | |
unsigned long __reserved1 [8]; | |
} mcontext_t; | |
/* Userlevel context. */ | |
typedef struct ucontext | |
{ | |
unsigned long int uc_flags; | |
struct ucontext *uc_link; | |
stack_t uc_stack; | |
mcontext_t uc_mcontext; | |
__sigset_t uc_sigmask; | |
struct _libc_fpstate __fpregs_mem; | |
} ucontext_t; | |
#else /* __WORDSIZE == 32 */ | |
/* Type for general register. */ | |
typedef int greg_t; | |
/* Number of general registers. */ | |
#define NGREG 19 | |
/* 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 significand[4]; | |
unsigned short int exponent; | |
}; | |
struct _libc_fpstate | |
{ | |
unsigned long int cw; | |
unsigned long int sw; | |
unsigned long int tag; | |
unsigned long int ipoff; | |
unsigned long int cssel; | |
unsigned long int dataoff; | |
unsigned long int datasel; | |
struct _libc_fpreg _st[8]; | |
unsigned long int status; | |
}; | |
/* Structure to describe FPU registers. */ | |
typedef struct _libc_fpstate *fpregset_t; | |
/* Context to describe whole processor state. */ | |
typedef struct | |
{ | |
gregset_t 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 fpregs; | |
unsigned long int oldmask; | |
unsigned long int cr2; | |
} mcontext_t; | |
/* Userlevel context. */ | |
typedef struct ucontext | |
{ | |
unsigned long int uc_flags; | |
struct ucontext *uc_link; | |
stack_t uc_stack; | |
mcontext_t uc_mcontext; | |
__sigset_t uc_sigmask; | |
struct _libc_fpstate __fpregs_mem; | |
} ucontext_t; | |
#endif /* __WORDSIZE == 32 */ | |
#endif /* sys/ucontext.h */ |