LXR qemu/linux-user/include/host/ppc64/host-signal.h

   1/*
   2 * host-signal.h: signal info dependent on the host architecture
   3 *
   4 * Copyright (c) 2003-2005 Fabrice Bellard
   5 * Copyright (c) 2021 Linaro Limited
   6 *
   7 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
   8 * See the COPYING file in the top-level directory.
   9 */
  10
  11#ifndef PPC_HOST_SIGNAL_H
  12#define PPC_HOST_SIGNAL_H
  13
  14/* Needed for PT_* constants */
  15#include <asm/ptrace.h>
  16
  17/* The third argument to a SA_SIGINFO handler is ucontext_t. */
  18typedef ucontext_t host_sigcontext;
  19
  20static inline uintptr_t host_signal_pc(host_sigcontext *uc)
  21{
  22    return uc->uc_mcontext.gp_regs[PT_NIP];
  23}
  24
  25static inline void host_signal_set_pc(host_sigcontext *uc, uintptr_t pc)
  26{
  27    uc->uc_mcontext.gp_regs[PT_NIP] = pc;
  28}
  29
  30static inline void *host_signal_mask(host_sigcontext *uc)
  31{
  32    return &uc->uc_sigmask;
  33}
  34
  35static inline bool host_signal_write(siginfo_t *info, host_sigcontext *uc)
  36{
  37    return uc->uc_mcontext.gp_regs[PT_TRAP] != 0x400
  38        && (uc->uc_mcontext.gp_regs[PT_DSISR] & 0x02000000);
  39}
  40
  41#endif
  42