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
36