bsd-user/arm/target_arch_signal.h

   1 /*
   2  *  arm signal definitions
   3  *
   4  *  Copyright (c) 2013 Stacey D. Son
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, see <http://www.gnu.org/licenses/>.
  18  */
  19 #ifndef _TARGET_ARCH_SIGNAL_H_
  20 #define _TARGET_ARCH_SIGNAL_H_
  21
  22 #include "cpu.h"
  23
  24 #define TARGET_REG_R0   0
  25 #define TARGET_REG_R1   1
  26 #define TARGET_REG_R2   2
  27 #define TARGET_REG_R3   3
  28 #define TARGET_REG_R4   4
  29 #define TARGET_REG_R5   5
  30 #define TARGET_REG_R6   6
  31 #define TARGET_REG_R7   7
  32 #define TARGET_REG_R8   8
  33 #define TARGET_REG_R9   9
  34 #define TARGET_REG_R10  10
  35 #define TARGET_REG_R11  11
  36 #define TARGET_REG_R12  12
  37 #define TARGET_REG_R13  13
  38 #define TARGET_REG_R14  14
  39 #define TARGET_REG_R15  15
  40 #define TARGET_REG_CPSR 16
  41 #define TARGET__NGREG   17
  42 /* Convenience synonyms */
  43 #define TARGET_REG_FP   TARGET_REG_R11
  44 #define TARGET_REG_SP   TARGET_REG_R13
  45 #define TARGET_REG_LR   TARGET_REG_R14
  46 #define TARGET_REG_PC   TARGET_REG_R15
  47
  48 #define TARGET_INSN_SIZE    4       /* arm instruction size */
  49
  50 /* Size of the signal trampolin code. See _sigtramp(). */
  51 #define TARGET_SZSIGCODE    ((abi_ulong)(9 * TARGET_INSN_SIZE))
  52
  53 /* compare to arm/include/_limits.h */
  54 #define TARGET_MINSIGSTKSZ  (1024 * 4)                  /* min sig stack size */
  55 #define TARGET_SIGSTKSZ     (TARGET_MINSIGSTKSZ + 32768)  /* recommended size */
  56
  57 /*
  58  * Floating point register state
  59  */
  60 typedef struct target_mcontext_vfp {
  61     abi_ullong  mcv_reg[32];
  62     abi_ulong   mcv_fpscr;
  63 } target_mcontext_vfp_t;
  64
  65 typedef struct target_mcontext {
  66     abi_uint    __gregs[TARGET__NGREG];
  67
  68     /*
  69      * Originally, rest of this structure was named __fpu, 35 * 4 bytes
  70      * long, never accessed from kernel.
  71      */
  72     abi_ulong   mc_vfp_size;
  73     abi_ptr     mc_vfp_ptr;
  74     abi_int     mc_spare[33];
  75 } target_mcontext_t;
  76
  77 #define TARGET_MCONTEXT_SIZE 208
  78 #define TARGET_UCONTEXT_SIZE 260
  79
  80 #include "target_os_ucontext.h"
  81
  82 struct target_sigframe {
  83     target_siginfo_t    sf_si;  /* saved siginfo */
  84     target_ucontext_t   sf_uc;  /* saved ucontext */
  85     target_mcontext_vfp_t sf_vfp; /* actual saved VFP context */
  86 };
  87
  88 #endif /* !_TARGET_ARCH_SIGNAL_H_ */