qemu

FORK: QEMU emulator
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host-signal.h (723B)

      1 /*
      2  * host-signal.h: signal info dependent on the host architecture
      3  *
      4  * Copyright (c) 2021 Warner Losh
      5  *
      6  * SPDX-License-Identifier: GPL-2.0-or-later
      7  */
      8 
      9 #ifndef ARM_HOST_SIGNAL_H
     10 #define ARM_HOST_SIGNAL_H
     11 
     12 #include <sys/ucontext.h>
     13 
     14 static inline uintptr_t host_signal_pc(ucontext_t *uc)
     15 {
     16     return uc->uc_mcontext.__gregs[_REG_PC];
     17 }
     18 
     19 static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc)
     20 {
     21     uc->uc_mcontext.__gregs[_REG_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. FreeBSD returns this as part of the
     28      * si_info.si_trapno.
     29      */
     30     uint32_t fsr = info->si_trapno;
     31 
     32     return extract32(fsr, 11, 1);
     33 }
     34 
     35 #endif