host-signal.h (913B)
1 /* 2 * host-signal.h: signal info dependent on the host architecture 3 * 4 * Copyright (C) 2021 Linaro Limited 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2 or later. 7 * See the COPYING file in the top-level directory. 8 */ 9 10 #ifndef X86_64_HOST_SIGNAL_H 11 #define X86_64_HOST_SIGNAL_H 12 13 /* The third argument to a SA_SIGINFO handler is ucontext_t. */ 14 typedef ucontext_t host_sigcontext; 15 16 static inline uintptr_t host_signal_pc(host_sigcontext *uc) 17 { 18 return uc->uc_mcontext.gregs[REG_RIP]; 19 } 20 21 static inline void host_signal_set_pc(host_sigcontext *uc, uintptr_t pc) 22 { 23 uc->uc_mcontext.gregs[REG_RIP] = pc; 24 } 25 26 static inline void *host_signal_mask(host_sigcontext *uc) 27 { 28 return &uc->uc_sigmask; 29 } 30 31 static inline bool host_signal_write(siginfo_t *info, host_sigcontext *uc) 32 { 33 return uc->uc_mcontext.gregs[REG_TRAPNO] == 0xe 34 && (uc->uc_mcontext.gregs[REG_ERR] & 0x2); 35 } 36 37 #endif