6e0bc06e21
Implement host_signal_pc, host_signal_set_pc and host_signal_write for arm. Signed-off-by: Kyle Evans <kevans@freebsd.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
36 lines
723 B
C
36 lines
723 B
C
/*
|
|
* host-signal.h: signal info dependent on the host architecture
|
|
*
|
|
* Copyright (c) 2021 Warner Losh
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#ifndef ARM_HOST_SIGNAL_H
|
|
#define ARM_HOST_SIGNAL_H
|
|
|
|
#include <sys/ucontext.h>
|
|
|
|
static inline uintptr_t host_signal_pc(ucontext_t *uc)
|
|
{
|
|
return uc->uc_mcontext.__gregs[_REG_PC];
|
|
}
|
|
|
|
static inline void host_signal_set_pc(ucontext_t *uc, uintptr_t pc)
|
|
{
|
|
uc->uc_mcontext.__gregs[_REG_PC] = pc;
|
|
}
|
|
|
|
static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc)
|
|
{
|
|
/*
|
|
* In the FSR, bit 11 is WnR. FreeBSD returns this as part of the
|
|
* si_info.si_trapno.
|
|
*/
|
|
uint32_t fsr = info->si_trapno;
|
|
|
|
return extract32(fsr, 11, 1);
|
|
}
|
|
|
|
#endif
|