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linux-user/host/x86: 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>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-09-16 19:44:47 -07:00
parent e6037d04c5
commit 85442fce49
4 changed files with 51 additions and 138 deletions
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26
linux-user/host/i386/host-signal.h
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@ -1 +1,25 @@
#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 I386_HOST_SIGNAL_H
#define I386_HOST_SIGNAL_H
static inline uintptr_t host_signal_pc(ucontext_t *uc)
{
return uc->uc_mcontext.gregs[REG_EIP];
}
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

2
linux-user/host/x32/host-signal.h
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@ -1 +1 @@
#define HOST_SIGNAL_PLACEHOLDER
#include "../x86_64/host-signal.h"

25
linux-user/host/x86_64/host-signal.h
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@ -1 +1,24 @@
#define HOST_SIGNAL_PLACEHOLDER
/*
* 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 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