| /* |
| * host-signal.h: signal info dependent on the host architecture |
| * |
| * Copyright (c) 2003-2005 Fabrice Bellard |
| * Copyright (c) 2021 Linaro Limited |
| * |
| * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. |
| * See the COPYING file in the top-level directory. |
| */ |
| |
| #ifndef SPARC64_HOST_SIGNAL_H |
| #define SPARC64_HOST_SIGNAL_H |
| |
| /* The third argument to a SA_SIGINFO handler is struct sigcontext. */ |
| typedef struct sigcontext host_sigcontext; |
| |
| static inline uintptr_t host_signal_pc(host_sigcontext *sc) |
| { |
| return sc->sigc_regs.tpc; |
| } |
| |
| static inline void host_signal_set_pc(host_sigcontext *sc, uintptr_t pc) |
| { |
| sc->sigc_regs.tpc = pc; |
| sc->sigc_regs.tnpc = pc + 4; |
| } |
| |
| static inline void *host_signal_mask(host_sigcontext *sc) |
| { |
| return &sc->sigc_mask; |
| } |
| |
| static inline bool host_signal_write(siginfo_t *info, host_sigcontext *uc) |
| { |
| uint32_t insn = *(uint32_t *)host_signal_pc(uc); |
| |
| if ((insn >> 30) == 3) { |
| switch ((insn >> 19) & 0x3f) { |
| case 0x05: /* stb */ |
| case 0x15: /* stba */ |
| case 0x06: /* sth */ |
| case 0x16: /* stha */ |
| case 0x04: /* st */ |
| case 0x14: /* sta */ |
| case 0x07: /* std */ |
| case 0x17: /* stda */ |
| case 0x0e: /* stx */ |
| case 0x1e: /* stxa */ |
| case 0x24: /* stf */ |
| case 0x34: /* stfa */ |
| case 0x27: /* stdf */ |
| case 0x37: /* stdfa */ |
| case 0x26: /* stqf */ |
| case 0x36: /* stqfa */ |
| case 0x25: /* stfsr */ |
| case 0x3c: /* casa */ |
| case 0x3e: /* casxa */ |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| #endif |
