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
  14 static inline uintptr_t host_signal_pc(ucontext_t *uc)
  15 {
  16     return uc->uc_mcontext.arm_pc;
  17 }
  18
  19 static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc)
  20 {
  21     uc->uc_mcontext.arm_pc = pc;
  22 }
  23
  24 static 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