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/*
* 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 SPARC_HOST_SIGNAL_H
#define SPARC_HOST_SIGNAL_H
static inline uintptr_t host_signal_pc(ucontext_t *uc)
{
#ifdef __arch64__
return uc->uc_mcontext.mc_gregs[MC_PC];
#else
return uc->uc_mcontext.gregs[REG_PC];
#endif
}
static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc)
{
#ifdef __arch64__
uc->uc_mcontext.mc_gregs[MC_PC] = pc;
#else
uc->uc_mcontext.gregs[REG_PC] = pc;
#endif
}
static inline void *host_signal_mask(ucontext_t *uc)
{
return &uc->uc_sigmask;
}
static inline bool host_signal_write(siginfo_t *info, ucontext_t *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
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