/* Copyright (C) 1997, 1999, 2001 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. */ /* System V/blackfin ABI compliant context switching support. */ #ifndef _SYS_UCONTEXT_H #define _SYS_UCONTEXT_H 1 #include <features.h> #include <signal.h> /* Type for general register. */ typedef int greg_t; /* Number of general registers. */ #define NGREG 47 /* Container for all general registers. */ typedef greg_t gregset_t[NGREG]; /* Number of each register is the `gregset_t' array. */ enum { REG_R0 = 0, #define REG_R0 REG_R0 REG_R1 = 1, #define REG_R1 REG_R1 REG_R2 = 2, #define REG_R2 REG_R2 REG_R3 = 3, #define REG_R3 REG_R3 REG_R4 = 4, #define REG_R4 REG_R4 REG_R5 = 5, #define REG_R5 REG_R5 REG_R6 = 6, #define REG_R6 REG_R6 REG_R7 = 7, #define REG_R7 REG_R7 REG_P0 = 8, #define REG_P0 REG_P0 REG_P1 = 9, #define REG_P1 REG_P1 REG_P2 = 10, #define REG_P2 REG_P2 REG_P3 = 11, #define REG_P3 REG_P3 REG_P4 = 12, #define REG_P4 REG_P4 REG_P5 = 13, #define REG_P5 REG_P5 REG_USP = 14, #define REG_USP REG_USP REG_A0W = 15, #define REG_A0W REG_A0W REG_A1W = 16, #define REG_A1W REG_A1W REG_A0X = 17, #define REG_A0X REG_A0X REG_A1X = 18, #define REG_A1X REG_A1X REG_ASTAT = 19, #define REG_ASTAT REG_ASTAT REG_RETS = 20, #define REG_RETS REG_RETS REG_PC= 21, #define REG_PC REG_PC REG_RETX = 22, #define REG_RETX REG_RETX REG_FP = 23, #define REG_FP REG_FP REG_I0 = 24, #define REG_I0 REG_I0 REG_I1 = 25, #define REG_I1 REG_I1 REG_I2 = 26, #define REG_I2 REG_I2 REG_I3 = 27, #define REG_I3 REG_I3 REG_M0 = 28, #define REG_M0 REG_M0 REG_M1 = 29, #define REG_M1 REG_M1 REG_M2 = 30, #define REG_M2 REG_M2 REG_M3 = 31, #define REG_M3 REG_M3 REG_L0 = 32, #define REG_L0 REG_L0 REG_L1 = 33, #define REG_L1 REG_L1 REG_L2 = 34, #define REG_L2 REG_L2 REG_L3 = 35, #define REG_L3 REG_L3 REG_B_0 = 36, #define REG_B0 REG_B0 REG_B1 = 37, #define REG_B1 REG_B1 REG_B2 = 38, #define REG_B2 REG_B2 REG_B3 = 39, #define REG_B3 REG_B3 REG_LC0 = 40, #define REG_LC0 REG_LC0 REG_LC1 = 41, #define REG_LC1 REG_LC1 REG_LT0 = 42, #define REG_LT0 REG_LT0 REG_LT1 = 43, #define REG_LT1 REG_LT1 REG_LB0 = 44, #define REG_LB0 REG_LB0 REG_LB1 = 45, #define REG_LB1 REG_LB1 REG_SEQSTAT = 46 #define REG_SEQSTAT REG_SEQSTAT }; /* Context to describe whole processor state. */ typedef struct { gregset_t gregs; } 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; #endif /* sys/ucontext.h */