From a30bfaa7bd1f721a5b936fd1b4bf009eb9c2a6f4 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Fri, 17 Sep 2021 10:34:42 -0700 Subject: linux-user/host/arm: Populate host_signal.h MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Split host_signal_pc and host_signal_write out of user-exec.c. Drop the *BSD code, to be re-created under bsd-user/ later. Reviewed-by: Warner Losh Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- linux-user/host/arm/host-signal.h | 31 ++++++++++++++++++++++++++++++- 1 file changed, 30 insertions(+), 1 deletion(-) (limited to 'linux-user/host') diff --git a/linux-user/host/arm/host-signal.h b/linux-user/host/arm/host-signal.h index f4b4d65..efb165c 100644 --- a/linux-user/host/arm/host-signal.h +++ b/linux-user/host/arm/host-signal.h @@ -1 +1,30 @@ -#define HOST_SIGNAL_PLACEHOLDER +/* + * 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 ARM_HOST_SIGNAL_H +#define ARM_HOST_SIGNAL_H + +static inline uintptr_t host_signal_pc(ucontext_t *uc) +{ + return uc->uc_mcontext.arm_pc; +} + +static inline bool host_signal_write(siginfo_t *info, ucontext_t *uc) +{ + /* + * In the FSR, bit 11 is WnR, assuming a v6 or + * later processor. On v5 we will always report + * this as a read, which will fail later. + */ + uint32_t fsr = uc->uc_mcontext.error_code; + return extract32(fsr, 11, 1); +} + +#endif -- cgit v1.1