| 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 PPC_HOST_SIGNAL_H |
| 12 | #define PPC_HOST_SIGNAL_H |
| 13 | |
| 14 | /* Needed for PT_* constants */ |
| 15 | #include <asm/ptrace.h> |
| 16 | |
| 17 | /* The third argument to a SA_SIGINFO handler is ucontext_t. */ |
| 18 | typedef ucontext_t host_sigcontext; |
| 19 | |
| 20 | static inline uintptr_t host_signal_pc(host_sigcontext *uc) |
| 21 | { |
| 22 | return uc->uc_mcontext.gp_regs[PT_NIP]; |
| 23 | } |
| 24 | |
| 25 | static inline void host_signal_set_pc(host_sigcontext *uc, uintptr_t pc) |
| 26 | { |
| 27 | uc->uc_mcontext.gp_regs[PT_NIP] = pc; |
| 28 | } |
| 29 | |
| 30 | static inline void *host_signal_mask(host_sigcontext *uc) |
| 31 | { |
| 32 | return &uc->uc_sigmask; |
| 33 | } |
| 34 | |
| 35 | static inline bool host_signal_write(siginfo_t *info, host_sigcontext *uc) |
| 36 | { |
| 37 | return uc->uc_mcontext.gp_regs[PT_TRAP] != 0x400 |
| 38 | && (uc->uc_mcontext.gp_regs[PT_DSISR] & 0x02000000); |
| 39 | } |
| 40 | |
| 41 | #endif |