host-signal.h (1626B)
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 SPARC64_HOST_SIGNAL_H 12 #define SPARC64_HOST_SIGNAL_H 13 14 /* The third argument to a SA_SIGINFO handler is struct sigcontext. */ 15 typedef struct sigcontext host_sigcontext; 16 17 static inline uintptr_t host_signal_pc(host_sigcontext *sc) 18 { 19 return sc->sigc_regs.tpc; 20 } 21 22 static inline void host_signal_set_pc(host_sigcontext *sc, uintptr_t pc) 23 { 24 sc->sigc_regs.tpc = pc; 25 sc->sigc_regs.tnpc = pc + 4; 26 } 27 28 static inline void *host_signal_mask(host_sigcontext *sc) 29 { 30 return &sc->sigc_mask; 31 } 32 33 static inline bool host_signal_write(siginfo_t *info, host_sigcontext *uc) 34 { 35 uint32_t insn = *(uint32_t *)host_signal_pc(uc); 36 37 if ((insn >> 30) == 3) { 38 switch ((insn >> 19) & 0x3f) { 39 case 0x05: /* stb */ 40 case 0x15: /* stba */ 41 case 0x06: /* sth */ 42 case 0x16: /* stha */ 43 case 0x04: /* st */ 44 case 0x14: /* sta */ 45 case 0x07: /* std */ 46 case 0x17: /* stda */ 47 case 0x0e: /* stx */ 48 case 0x1e: /* stxa */ 49 case 0x24: /* stf */ 50 case 0x34: /* stfa */ 51 case 0x27: /* stdf */ 52 case 0x37: /* stdfa */ 53 case 0x26: /* stqf */ 54 case 0x36: /* stqfa */ 55 case 0x25: /* stfsr */ 56 case 0x3c: /* casa */ 57 case 0x3e: /* casxa */ 58 return true; 59 } 60 } 61 return false; 62 } 63 64 #endif