[mirror_qemu.git] / linux-user / host / x86_64 / host-signal.h

/*
 * host-signal.h: signal info dependent on the host architecture
 *
 * Copyright (C) 2021 Linaro Limited
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or later.
 * See the COPYING file in the top-level directory.
 */

#ifndef X86_64_HOST_SIGNAL_H
#define X86_64_HOST_SIGNAL_H

static inline uintptr_t host_signal_pc(ucontext_t *uc)
{
    return uc->uc_mcontext.gregs[REG_RIP];
}

static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc)
{
    uc->uc_mcontext.gregs[REG_RIP] = pc;
}

static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc)
{
    return uc->uc_mcontext.gregs[REG_TRAPNO] == 0xe
        && (uc->uc_mcontext.gregs[REG_ERR] & 0x2);
}

#endif
Commit	Line	Data
85442fce RH	1	/*
	2	* host-signal.h: signal info dependent on the host architecture
	3	*
	4	* Copyright (C) 2021 Linaro Limited
	5	*
	6	* This work is licensed under the terms of the GNU GPL, version 2 or later.
	7	* See the COPYING file in the top-level directory.
	8	*/
	9
	10	#ifndef X86_64_HOST_SIGNAL_H
	11	#define X86_64_HOST_SIGNAL_H
	12
	13	static inline uintptr_t host_signal_pc(ucontext_t *uc)
	14	{
	15	return uc->uc_mcontext.gregs[REG_RIP];
	16	}
	17
c6cda6a4 WL	18	static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc)
	19	{
	20	uc->uc_mcontext.gregs[REG_RIP] = pc;
	21	}
	22
85442fce RH	23	static inline bool host_signal_write(siginfo_t info, ucontext_t uc)
	24	{
	25	return uc->uc_mcontext.gregs[REG_TRAPNO] == 0xe
	26	&& (uc->uc_mcontext.gregs[REG_ERR] & 0x2);
	27	}
	28
	29	#endif