diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/x86')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86/sys/ucontext.h | 246 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86/sys/user.h | 180 |
2 files changed, 426 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/x86/sys/ucontext.h b/sysdeps/unix/sysv/linux/x86/sys/ucontext.h new file mode 100644 index 0000000000..7a3938cbcd --- /dev/null +++ b/sysdeps/unix/sysv/linux/x86/sys/ucontext.h @@ -0,0 +1,246 @@ +/* Copyright (C) 2001-2012 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 <signal.h> + +/* We need the signal context definitions even if they are not used + included in <signal.h>. */ +#include <bits/sigcontext.h> + +#ifdef __x86_64__ + +/* Type for general register. */ +__extension__ typedef long long int greg_t; + +/* Number of general registers. */ +#define NGREG 23 + +/* 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 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; + __extension__ unsigned long 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 /* !__x86_64__ */ + +/* 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 /* !__x86_64__ */ + +#endif /* sys/ucontext.h */ diff --git a/sysdeps/unix/sysv/linux/x86/sys/user.h b/sysdeps/unix/sysv/linux/x86/sys/user.h new file mode 100644 index 0000000000..9db293713f --- /dev/null +++ b/sysdeps/unix/sysv/linux/x86/sys/user.h @@ -0,0 +1,180 @@ +/* Copyright (C) 2001-2012 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_USER_H +#define _SYS_USER_H 1 + +/* The whole purpose of this file is for GDB and GDB only. Don't read + too much into it. Don't use it for anything other than GDB unless + you know what you are doing. */ + +#ifdef __x86_64__ + +struct user_fpregs_struct +{ + unsigned short int cwd; + unsigned short int swd; + unsigned short int ftw; + unsigned short int fop; + __extension__ unsigned long long int rip; + __extension__ unsigned long long int rdp; + unsigned int mxcsr; + unsigned int mxcr_mask; + unsigned int st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */ + unsigned int xmm_space[64]; /* 16*16 bytes for each XMM-reg = 256 bytes */ + unsigned int padding[24]; +}; + +struct user_regs_struct +{ + __extension__ unsigned long long int r15; + __extension__ unsigned long long int r14; + __extension__ unsigned long long int r13; + __extension__ unsigned long long int r12; + __extension__ unsigned long long int rbp; + __extension__ unsigned long long int rbx; + __extension__ unsigned long long int r11; + __extension__ unsigned long long int r10; + __extension__ unsigned long long int r9; + __extension__ unsigned long long int r8; + __extension__ unsigned long long int rax; + __extension__ unsigned long long int rcx; + __extension__ unsigned long long int rdx; + __extension__ unsigned long long int rsi; + __extension__ unsigned long long int rdi; + __extension__ unsigned long long int orig_rax; + __extension__ unsigned long long int rip; + __extension__ unsigned long long int cs; + __extension__ unsigned long long int eflags; + __extension__ unsigned long long int rsp; + __extension__ unsigned long long int ss; + __extension__ unsigned long long int fs_base; + __extension__ unsigned long long int gs_base; + __extension__ unsigned long long int ds; + __extension__ unsigned long long int es; + __extension__ unsigned long long int fs; + __extension__ unsigned long long int gs; +}; + +struct user +{ + struct user_regs_struct regs; + int u_fpvalid; + struct user_fpregs_struct i387; + __extension__ unsigned long long int u_tsize; + __extension__ unsigned long long int u_dsize; + __extension__ unsigned long long int u_ssize; + __extension__ unsigned long long int start_code; + __extension__ unsigned long long int start_stack; + __extension__ long long int signal; + int reserved; + __extension__ union + { + struct user_regs_struct* u_ar0; + __extension__ unsigned long long int __u_ar0_word; + }; + __extension__ union + { + struct user_fpregs_struct* u_fpstate; + __extension__ unsigned long long int __u_fpstate_word; + }; + __extension__ unsigned long long int magic; + char u_comm [32]; + __extension__ unsigned long long int u_debugreg [8]; +}; + +#else +/* These are the 32-bit x86 structures. */ +struct user_fpregs_struct +{ + long int cwd; + long int swd; + long int twd; + long int fip; + long int fcs; + long int foo; + long int fos; + long int st_space [20]; +}; + +struct user_fpxregs_struct +{ + unsigned short int cwd; + unsigned short int swd; + unsigned short int twd; + unsigned short int fop; + long int fip; + long int fcs; + long int foo; + long int fos; + long int mxcsr; + long int reserved; + long int st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */ + long int xmm_space[32]; /* 8*16 bytes for each XMM-reg = 128 bytes */ + long int padding[56]; +}; + +struct user_regs_struct +{ + long int ebx; + long int ecx; + long int edx; + long int esi; + long int edi; + long int ebp; + long int eax; + long int xds; + long int xes; + long int xfs; + long int xgs; + long int orig_eax; + long int eip; + long int xcs; + long int eflags; + long int esp; + long int xss; +}; + +struct user +{ + struct user_regs_struct regs; + int u_fpvalid; + struct user_fpregs_struct i387; + unsigned long int u_tsize; + unsigned long int u_dsize; + unsigned long int u_ssize; + unsigned long int start_code; + unsigned long int start_stack; + long int signal; + int reserved; + struct user_regs_struct* u_ar0; + struct user_fpregs_struct* u_fpstate; + unsigned long int magic; + char u_comm [32]; + int u_debugreg [8]; +}; +#endif /* __x86_64__ */ + +#define PAGE_SHIFT 12 +#define PAGE_SIZE (1UL << PAGE_SHIFT) +#define PAGE_MASK (~(PAGE_SIZE-1)) +#define NBPG PAGE_SIZE +#define UPAGES 1 +#define HOST_TEXT_START_ADDR (u.start_code) +#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) + +#endif /* _SYS_USER_H */ |