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
  20 #ifndef TARGET_ARCH_SIGNAL_H
  21 #define TARGET_ARCH_SIGNAL_H
  22
  23 #include "cpu.h"
  24
  25 #define TARGET_REG_R0   0
  26 #define TARGET_REG_R1   1
  27 #define TARGET_REG_R2   2
  28 #define TARGET_REG_R3   3
  29 #define TARGET_REG_R4   4
  30 #define TARGET_REG_R5   5
  31 #define TARGET_REG_R6   6
  32 #define TARGET_REG_R7   7
  33 #define TARGET_REG_R8   8
  34 #define TARGET_REG_R9   9
  35 #define TARGET_REG_R10  10
  36 #define TARGET_REG_R11  11
  37 #define TARGET_REG_R12  12
  38 #define TARGET_REG_R13  13
  39 #define TARGET_REG_R14  14
  40 #define TARGET_REG_R15  15
  41 #define TARGET_REG_CPSR 16
  42 #define TARGET__NGREG   17
  43 /* Convenience synonyms */
  44 #define TARGET_REG_FP   TARGET_REG_R11
  45 #define TARGET_REG_SP   TARGET_REG_R13
  46 #define TARGET_REG_LR   TARGET_REG_R14
  47 #define TARGET_REG_PC   TARGET_REG_R15
  48
  49 #define TARGET_INSN_SIZE    4       /* arm instruction size */
  50
  51 /* Size of the signal trampolin code. See _sigtramp(). */
  52 #define TARGET_SZSIGCODE    ((abi_ulong)(9 * TARGET_INSN_SIZE))
  53
  54 /* compare to arm/include/_limits.h */
  55 #define TARGET_MINSIGSTKSZ  (1024 * 4)                  /* min sig stack size */
  56 #define TARGET_SIGSTKSZ     (TARGET_MINSIGSTKSZ + 32768)  /* recommended size */
  57
  58 /*
  59  * Floating point register state
  60  */
  61 typedef struct target_mcontext_vfp {
  62     abi_ullong  mcv_reg[32];
  63     abi_ulong   mcv_fpscr;
  64 } target_mcontext_vfp_t;
  65
  66 typedef struct target_mcontext {
  67     abi_uint    __gregs[TARGET__NGREG];
  68
  69     /*
  70      * Originally, rest of this structure was named __fpu, 35 * 4 bytes
  71      * long, never accessed from kernel.
  72      */
  73     abi_ulong   mc_vfp_size;
  74     abi_ptr     mc_vfp_ptr;
  75     abi_int     mc_spare[33];
  76 } target_mcontext_t;
  77
  78 #define TARGET_MCONTEXT_SIZE 208
  79 #define TARGET_UCONTEXT_SIZE 260
  80
  81 #include "target_os_ucontext.h"
  82
  83 struct target_sigframe {
  84     target_siginfo_t    sf_si;  /* saved siginfo */
  85     target_ucontext_t   sf_uc;  /* saved ucontext */
  86     target_mcontext_vfp_t sf_vfp; /* actual saved VFP context */
  87 };
  88
  89 #endif /* TARGET_ARCH_SIGNAL_H */