| /* |
| * host-signal.h: signal info dependent on the host architecture |
| * |
| * Copyright (C) 2021 Linaro Limited |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| * See the COPYING file in the top-level directory. |
| */ |
| |
| #ifndef X86_64_HOST_SIGNAL_H |
| #define X86_64_HOST_SIGNAL_H |
| |
| /* The third argument to a SA_SIGINFO handler is ucontext_t. */ |
| typedef ucontext_t host_sigcontext; |
| |
| static inline uintptr_t host_signal_pc(host_sigcontext *uc) |
| { |
| return uc->uc_mcontext.gregs[REG_RIP]; |
| } |
| |
| static inline void host_signal_set_pc(host_sigcontext *uc, uintptr_t pc) |
| { |
| uc->uc_mcontext.gregs[REG_RIP] = pc; |
| } |
| |
| static inline void *host_signal_mask(host_sigcontext *uc) |
| { |
| return &uc->uc_sigmask; |
| } |
| |
| static inline bool host_signal_write(siginfo_t *info, host_sigcontext *uc) |
| { |
| return uc->uc_mcontext.gregs[REG_TRAPNO] == 0xe |
| && (uc->uc_mcontext.gregs[REG_ERR] & 0x2); |
| } |
| |
| #endif |
