1 /* 2 * host-signal.h: signal info dependent on the host architecture 3 * 4 * Copyright (c) 2022 Linaro Ltd. 5 * 6 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. 7 * See the COPYING file in the top-level directory. 8 */ 9 10 #ifndef PPC_HOST_SIGNAL_H 11 #define PPC_HOST_SIGNAL_H 12 13 #include <asm/ptrace.h> 14 15 /* The third argument to a SA_SIGINFO handler is ucontext_t. */ 16 typedef ucontext_t host_sigcontext; 17 18 static inline uintptr_t host_signal_pc(host_sigcontext *uc) 19 { 20 return uc->uc_mcontext.regs->nip; 21 } 22 23 static inline void host_signal_set_pc(host_sigcontext *uc, uintptr_t pc) 24 { 25 uc->uc_mcontext.regs->nip = pc; 26 } 27 28 static inline void *host_signal_mask(host_sigcontext *uc) 29 { 30 return &uc->uc_sigmask; 31 } 32 33 static inline bool host_signal_write(siginfo_t *info, host_sigcontext *uc) 34 { 35 return uc->uc_mcontext.regs->trap != 0x400 36 && (uc->uc_mcontext.regs->dsisr & 0x02000000); 37 } 38 39 #endif 40