diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/bits/sigcontext.h | 30 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/x86_64/sys/ucontext.h | 164 |
2 files changed, 139 insertions, 55 deletions
diff --git a/sysdeps/unix/sysv/linux/x86_64/bits/sigcontext.h b/sysdeps/unix/sysv/linux/x86_64/bits/sigcontext.h index 88722c4..bedfa16 100644 --- a/sysdeps/unix/sysv/linux/x86_64/bits/sigcontext.h +++ b/sysdeps/unix/sysv/linux/x86_64/bits/sigcontext.h @@ -66,7 +66,7 @@ struct _fpstate __uint32_t mxcsr; __uint32_t reserved; struct _fpxreg _fxsr_st[8]; - struct _xmmreg _xmm[8]; + struct _xmmreg _xmm[8]; __uint32_t padding[56]; }; @@ -96,7 +96,7 @@ struct sigcontext unsigned long cr2; }; -#else +#else /* __WORDSIZE == 64 */ struct _fpstate { @@ -110,19 +110,16 @@ struct _fpstate __uint32_t mxcsr; __uint32_t mxcr_mask; struct _fpxreg _st[8]; - struct _xmmreg _xmm[16]; + struct _xmmreg _xmm[16]; __uint32_t padding[24]; }; struct sigcontext { - unsigned short gs, __gsh; - unsigned short fs, __fsh; - unsigned short es, __esh; - unsigned short ds, __dsh; unsigned long r8; unsigned long r9; unsigned long r10; + unsigned long r11; unsigned long r12; unsigned long r13; unsigned long r14; @@ -133,21 +130,22 @@ struct sigcontext unsigned long rbx; unsigned long rdx; unsigned long rax; - unsigned long trapno; - unsigned long err; + unsigned long rcx; + unsigned long rsp; unsigned long rip; + unsigned long eflags; unsigned short cs, __csh; + unsigned short gs, __gsh; + unsigned short fs, __fsh; unsigned int __pad0; - unsigned long eflags; - unsigned long rsp_at_signal; - struct _fpstate * fpstate; + unsigned long err; + unsigned long trapno; unsigned long oldmask; unsigned long cr2; - unsigned long r11; - unsigned long rcx; - unsigned long rsp; + struct _fpstate * fpstate; + unsigned long __reserved1 [8]; }; -#endif +#endif /* __WORDSIZE == 64 */ #endif /* _BITS_SIGCONTEXT_H */ diff --git a/sysdeps/unix/sysv/linux/x86_64/sys/ucontext.h b/sysdeps/unix/sysv/linux/x86_64/sys/ucontext.h index 6b69c84..30d8f95 100644 --- a/sysdeps/unix/sysv/linux/x86_64/sys/ucontext.h +++ b/sysdeps/unix/sysv/linux/x86_64/sys/ucontext.h @@ -1,4 +1,4 @@ -/* Copyright (C) 2001 Free Software Foundation, Inc. +/* 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 @@ -21,11 +21,14 @@ #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; @@ -39,11 +42,7 @@ typedef greg_t gregset_t[NGREG]; /* Number of each register in the `gregset_t' array. */ enum { - REG_GSFS = 0, -# define REG_GSFS REG_GSFS - REG_ESDS, -# define REG_ESDS REG_ESDS - REG_R8, + REG_R8 = 0, # define REG_R8 REG_R8 REG_R9, # define REG_R9 REG_R9 @@ -65,28 +64,133 @@ enum # define REG_RSI REG_RSI REG_RBP, # define REG_RBP REG_RBP - REG_RSP, -# define REG_RSP REG_RSP REG_RBX, # define REG_RBX REG_RBX REG_RDX, # define REG_RDX REG_RDX - REG_RCX, -# define REG_RCX REG_RCX 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_CSGS, /* Actually short cs, __csh, gs, __gsh. */ +# define REG_CSGS REG_CSGS + REG_FS, /* Actually short gs, __fsh, pad. */ +# define REG_FS REG_FS + 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_RIP, -# define REG_RIP REG_RIP + REG_EIP, +# define REG_EIP REG_EIP REG_CS, # define REG_CS REG_CS REG_EFL, # define REG_EFL REG_EFL - REG_URSP, -# define REG_URSP REG_URSP + REG_UESP, +# define REG_UESP REG_UESP REG_SS # define REG_SS REG_SS }; @@ -99,21 +203,8 @@ struct _libc_fpreg unsigned short int exponent; }; -struct _libc_fpxreg -{ - unsigned short int significand[4]; - unsigned short int exponent; - unsigned short int padding[3]; -}; - -struct _libc_xmmreg -{ - unsigned long int element[4]; -}; - struct _libc_fpstate { - /* Regular FPU environment. */ unsigned long int cw; unsigned long int sw; unsigned long int tag; @@ -121,26 +212,19 @@ struct _libc_fpstate unsigned long int cssel; unsigned long int dataoff; unsigned long int datasel; - struct _libc_fpreg _st[16]; - unsigned short int status; - unsigned short int magic; - /* FXSR FPU environment. */ - - unsigned long int _fxsr_env[6]; - unsigned long int mxcsr; - unsigned long int reserved; - struct _libc_fpxreg _fxsr_st[8]; - struct _libc_xmmreg _xmm[16]; - unsigned long int padding[32]; + struct _libc_fpreg _st[8]; + unsigned long int status; }; /* Structure to describe FPU registers. */ -typedef struct _libc_fpstate fpregset_t; +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; @@ -157,4 +241,6 @@ typedef struct ucontext struct _libc_fpstate __fpregs_mem; } ucontext_t; +#endif /* __WORDSIZE == 32 */ + #endif /* sys/ucontext.h */ |