1238b32deSRichard Henderson /* 2238b32deSRichard Henderson * host-signal.h: signal info dependent on the host architecture 3238b32deSRichard Henderson * 4238b32deSRichard Henderson * Copyright (c) 2003-2005 Fabrice Bellard 5238b32deSRichard Henderson * Copyright (c) 2021 Linaro Limited 6238b32deSRichard Henderson * 7238b32deSRichard Henderson * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. 8238b32deSRichard Henderson * See the COPYING file in the top-level directory. 9238b32deSRichard Henderson */ 10238b32deSRichard Henderson 11238b32deSRichard Henderson #ifndef SPARC64_HOST_SIGNAL_H 12238b32deSRichard Henderson #define SPARC64_HOST_SIGNAL_H 13238b32deSRichard Henderson 14*4f152ef2SRichard Henderson /* The third argument to a SA_SIGINFO handler is struct sigcontext. */ 15*4f152ef2SRichard Henderson typedef struct sigcontext host_sigcontext; 16238b32deSRichard Henderson host_signal_pc(host_sigcontext * sc)17*4f152ef2SRichard Hendersonstatic inline uintptr_t host_signal_pc(host_sigcontext *sc) 18238b32deSRichard Henderson { 19*4f152ef2SRichard Henderson return sc->sigc_regs.tpc; 20238b32deSRichard Henderson } 21238b32deSRichard Henderson host_signal_set_pc(host_sigcontext * sc,uintptr_t pc)22*4f152ef2SRichard Hendersonstatic inline void host_signal_set_pc(host_sigcontext *sc, uintptr_t pc) 23238b32deSRichard Henderson { 24*4f152ef2SRichard Henderson sc->sigc_regs.tpc = pc; 25*4f152ef2SRichard Henderson sc->sigc_regs.tnpc = pc + 4; 26238b32deSRichard Henderson } 27238b32deSRichard Henderson host_signal_mask(host_sigcontext * sc)28*4f152ef2SRichard Hendersonstatic inline void *host_signal_mask(host_sigcontext *sc) 29238b32deSRichard Henderson { 30*4f152ef2SRichard Henderson return &sc->sigc_mask; 31238b32deSRichard Henderson } 32238b32deSRichard Henderson host_signal_write(siginfo_t * info,host_sigcontext * uc)33238b32deSRichard Hendersonstatic inline bool host_signal_write(siginfo_t *info, host_sigcontext *uc) 34238b32deSRichard Henderson { 35238b32deSRichard Henderson uint32_t insn = *(uint32_t *)host_signal_pc(uc); 36238b32deSRichard Henderson 37238b32deSRichard Henderson if ((insn >> 30) == 3) { 38238b32deSRichard Henderson switch ((insn >> 19) & 0x3f) { 39238b32deSRichard Henderson case 0x05: /* stb */ 40238b32deSRichard Henderson case 0x15: /* stba */ 41238b32deSRichard Henderson case 0x06: /* sth */ 42238b32deSRichard Henderson case 0x16: /* stha */ 43238b32deSRichard Henderson case 0x04: /* st */ 44238b32deSRichard Henderson case 0x14: /* sta */ 45238b32deSRichard Henderson case 0x07: /* std */ 46238b32deSRichard Henderson case 0x17: /* stda */ 47238b32deSRichard Henderson case 0x0e: /* stx */ 48238b32deSRichard Henderson case 0x1e: /* stxa */ 49238b32deSRichard Henderson case 0x24: /* stf */ 50238b32deSRichard Henderson case 0x34: /* stfa */ 51238b32deSRichard Henderson case 0x27: /* stdf */ 52238b32deSRichard Henderson case 0x37: /* stdfa */ 53238b32deSRichard Henderson case 0x26: /* stqf */ 54238b32deSRichard Henderson case 0x36: /* stqfa */ 55238b32deSRichard Henderson case 0x25: /* stfsr */ 56238b32deSRichard Henderson case 0x3c: /* casa */ 57238b32deSRichard Henderson case 0x3e: /* casxa */ 58238b32deSRichard Henderson return true; 59238b32deSRichard Henderson } 60238b32deSRichard Henderson } 61238b32deSRichard Henderson return false; 62238b32deSRichard Henderson } 63238b32deSRichard Henderson 64238b32deSRichard Henderson #endif 65