diff options
Diffstat (limited to 'libc/sysdeps/linux/mips/sys/ucontext.h')
| -rw-r--r-- | libc/sysdeps/linux/mips/sys/ucontext.h | 160 |
1 files changed, 119 insertions, 41 deletions
diff --git a/libc/sysdeps/linux/mips/sys/ucontext.h b/libc/sysdeps/linux/mips/sys/ucontext.h index f57b91e4f..90aa09a80 100644 --- a/libc/sysdeps/linux/mips/sys/ucontext.h +++ b/libc/sysdeps/linux/mips/sys/ucontext.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 1998, 2000 Free Software Foundation, Inc. +/* Copyright (C) 1998, 1999, 2002, 2003 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 @@ -16,65 +16,143 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -/* Don't rely on this, the interface is currently messed up and may need to - be broken to be fixed. */ +/* System V/mips ABI compliant context switching support. */ + #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> - - /* Type for general register. */ -typedef unsigned long int greg_t; +#if _MIPS_SIM == _MIPS_SIM_ABI32 +typedef __uint32_t greg_t; +#else +typedef __uint64_t greg_t; +#endif /* Number of general registers. */ -#define NGREG 37 -#define NFPREG 33 +#define NGREG 36 /* Container for all general registers. */ -/* gregset_t must be an array. The below declared array corresponds to: -typedef struct gregset { - greg_t g_regs[32]; - greg_t g_hi; - greg_t g_lo; - greg_t g_pad[3]; -} gregset_t; */ typedef greg_t gregset_t[NGREG]; -/* Container for all FPU registers. */ -typedef struct fpregset { - union { - double fp_dregs[32]; - struct { - float _fp_fregs; - unsigned int _fp_pad; - } fp_fregs[32]; - } fp_r; - unsigned int fp_csr; - unsigned int fp_pad; -} fpregset_t; +/* Number of each register is the `gregset_t' array. */ +enum +{ + CTX_R0 = 0, +#define CTX_R0 CTX_R0 + CTX_AT = 1, +#define CTX_AT CTX_AT + CTX_V0 = 2, +#define CTX_V0 CTX_V0 + CTX_V1 = 3, +#define CTX_V1 CTX_V1 + CTX_A0 = 4, +#define CTX_A0 CTX_A0 + CTX_A1 = 5, +#define CTX_A1 CTX_A1 + CTX_A2 = 6, +#define CTX_A2 CTX_A2 + CTX_A3 = 7, +#define CTX_A3 CTX_A3 + CTX_T0 = 8, +#define CTX_T0 CTX_T0 + CTX_T1 = 9, +#define CTX_T1 CTX_T1 + CTX_T2 = 10, +#define CTX_T2 CTX_T2 + CTX_T3 = 11, +#define CTX_T3 CTX_T3 + CTX_T4 = 12, +#define CTX_T4 CTX_T4 + CTX_T5 = 13, +#define CTX_T5 CTX_T5 + CTX_T6 = 14, +#define CTX_T6 CTX_T6 + CTX_T7 = 15, +#define CTX_T7 CTX_T7 + CTX_S0 = 16, +#define CTX_S0 CTX_S0 + CTX_S1 = 17, +#define CTX_S1 CTX_S1 + CTX_S2 = 18, +#define CTX_S2 CTX_S2 + CTX_S3 = 19, +#define CTX_S3 CTX_S3 + CTX_S4 = 20, +#define CTX_S4 CTX_S4 + CTX_S5 = 21, +#define CTX_S5 CTX_S5 + CTX_S6 = 22, +#define CTX_S6 CTX_S6 + CTX_S7 = 23, +#define CTX_S7 CTX_S7 + CTX_T8 = 24, +#define CTX_T8 CTX_T8 + CTX_T9 = 25, +#define CTX_T9 CTX_T9 + CTX_K0 = 26, +#define CTX_K0 CTX_K0 + CTX_K1 = 27, +#define CTX_K1 CTX_K1 + CTX_GP = 28, +#define CTX_GP CTX_GP + CTX_SP = 29, +#define CTX_SP CTX_SP + CTX_S8 = 30, +#define CTX_S8 CTX_S8 + CTX_RA = 31, +#define CTX_RA CTX_RA + CTX_MDLO = 32, +#define CTX_MDLO CTX_MDLO + CTX_MDHI = 33, +#define CTX_MDHI CTX_MDHI + CTX_CAUSE = 34, +#define CTX_CAUSE CTX_CAUSE + CTX_EPC = 35, +#define CTX_EPC CTX_EPC +}; +/* Structure to describe FPU registers. */ +typedef struct fpregset +{ + union + { +#if _MIPS_SIM == _MIPS_SIM_ABI32 + double fp_dregs[16]; + float fp_fregs[32]; + unsigned int fp_regs[32]; +#else + double fp_dregs[32]; + /* float fp_fregs[32]; */ + __uint64_t fp_regs[32]; +#endif + } fp_r; + unsigned int fp_csr; + unsigned int fp_pad; +} fpregset_t; /* Context to describe whole processor state. */ typedef struct - { - gregset_t gregs; - fpregset_t fpregs; - } mcontext_t; +{ + gregset_t gpregs; + fpregset_t fpregs; +} 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; - } ucontext_t; +{ +#if _MIPS_SIM == _MIPS_SIM_ABI32 + unsigned long int uc_flags; +#else + __uint64_t uc_flags; +#endif + struct ucontext *uc_link; + __sigset_t uc_sigmask; + stack_t uc_stack; + mcontext_t uc_mcontext; + int uc_filler[48]; +} ucontext_t; #endif /* sys/ucontext.h */ |