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linux-user/host/arm: Populate host_signal.h

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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 <imp@bsdimp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-09-17 10:34:42 -07:00
parent 8b5bd46193
commit a30bfaa7bd
2 changed files with 31 additions and 45 deletions
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31
linux-user/host/arm/host-signal.h
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@ -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