bsd-user/riscv/target_arch_signal.h

   1 /*
   2  *  RISC-V signal definitions
   3  *
   4  *  Copyright (c) 2019 Mark Corbin
   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
  26 #define TARGET_INSN_SIZE     4  /* riscv instruction size */
  27
  28 /* Size of the signal trampoline code placed on the stack. */
  29 #define TARGET_SZSIGCODE    ((abi_ulong)(7 * TARGET_INSN_SIZE))
  30
  31 /* Compare with riscv/include/_limits.h */
  32 #define TARGET_MINSIGSTKSZ  (1024 * 4)
  33 #define TARGET_SIGSTKSZ     (TARGET_MINSIGSTKSZ + 32768)
  34
  35 struct target_gpregs {
  36     uint64_t    gp_ra;
  37     uint64_t    gp_sp;
  38     uint64_t    gp_gp;
  39     uint64_t    gp_tp;
  40     uint64_t    gp_t[7];
  41     uint64_t    gp_s[12];
  42     uint64_t    gp_a[8];
  43     uint64_t    gp_sepc;
  44     uint64_t    gp_sstatus;
  45 };
  46
  47 struct target_fpregs {
  48     uint64_t        fp_x[32][2];
  49     uint64_t        fp_fcsr;
  50     uint32_t        fp_flags;
  51     uint32_t        pad;
  52 };
  53
  54 typedef struct target_mcontext {
  55     struct target_gpregs   mc_gpregs;
  56     struct target_fpregs   mc_fpregs;
  57     uint32_t               mc_flags;
  58 #define TARGET_MC_FP_VALID 0x01
  59     uint32_t               mc_pad;
  60     uint64_t               mc_spare[8];
  61 } target_mcontext_t;
  62
  63 #define TARGET_MCONTEXT_SIZE 864
  64 #define TARGET_UCONTEXT_SIZE 936
  65
  66 #include "target_os_ucontext.h"
  67
  68 struct target_sigframe {
  69     target_ucontext_t   sf_uc; /* = *sf_uncontext */
  70     target_siginfo_t    sf_si; /* = *sf_siginfo (SA_SIGINFO case)*/
  71 };
  72
  73 #define TARGET_SIGSTACK_ALIGN 16
  74
  75 #endif /* TARGET_ARCH_SIGNAL_H */