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 /* The third argument to a SA_SIGINFO handler is ucontext_t. */ 15 typedef ucontext_t host_sigcontext; 16 17 static inline uintptr_t host_signal_pc(host_sigcontext *uc) 18 { 19 return uc->uc_mcontext.arm_pc; 20 } 21 22 static inline void host_signal_set_pc(host_sigcontext *uc, uintptr_t pc) 23 { 24 uc->uc_mcontext.arm_pc = pc; 25 } 26 27 static inline void *host_signal_mask(host_sigcontext *uc) 28 { 29 return &uc->uc_sigmask; 30 } 31 32 static inline bool host_signal_write(siginfo_t *info, host_sigcontext *uc) 33 { 34 /* 35 * In the FSR, bit 11 is WnR, assuming a v6 or 36 * later processor. On v5 we will always report 37 * this as a read, which will fail later. 38 */ 39 uint32_t fsr = uc->uc_mcontext.error_code; 40 return extract32(fsr, 11, 1); 41 } 42 43 #endif 44