LXR qemu/linux-user/host/arm/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 ARM_HOST_SIGNAL_H
  12#define ARM_HOST_SIGNAL_H
  13
  14static inline uintptr_t host_signal_pc(ucontext_t *uc)
  15{
  16    return uc->uc_mcontext.arm_pc;
  17}
  18
  19static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc)
  20{
  21    uc->uc_mcontext.arm_pc = pc;
  22}
  23
  24static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc)
  25{
  26    /*
  27     * In the FSR, bit 11 is WnR, assuming a v6 or
  28     * later processor.  On v5 we will always report
  29     * this as a read, which will fail later.
  30     */
  31    uint32_t fsr = uc->uc_mcontext.error_code;
  32    return extract32(fsr, 11, 1);
  33}
  34
  35#endif
  36