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bsd-user/freebsd: Create common target_os_ucontext.h file 

FreeBSD has a MI ucontext structure that contains the MD mcontext
machine state and other things that are machine independent. Create an
include file for all the ucontext stuff. It needs to be included in the
arch specific files after target_mcontext is defined. This is largely
copied from sys/_ucontext.h with the comments about layout removed
because we don't support ancient FreeBSD binaries.

Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
master
Warner Losh 2021-10-29 08:39:01 -06:00
parent 73d72229fc
commit aa3a242830
2 changed files with 35 additions and 3 deletions
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3
bsd-user/freebsd/target_os_signal.h
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@ -1,9 +1,6 @@
#ifndef _TARGET_OS_SIGNAL_H_
#define _TARGET_OS_SIGNAL_H_
/* FreeBSD's sys/ucontext.h defines this */
#define TARGET_MC_GET_CLEAR_RET 0x0001
#include "target_os_siginfo.h"
#include "target_arch_signal.h"

35
bsd-user/freebsd/target_os_ucontext.h Normal file
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@ -0,0 +1,35 @@
/*
* FreeBSD has a common ucontext definition for all architectures.
*
* Copyright 2021 Warner Losh <imp@bsdimp.com>
*
* SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
*/
#ifndef TARGET_OS_UCONTEXT_H
#define TARGET_OS_UCONTEXT_H
/*
* Defines the common bits for all of FreeBSD's architectures. Has to be
* included AFTER the MD target_mcontext_t is defined, however, so can't
* be in the grab-bag that is target_os_signal.h.
*/
/* See FreeBSD's sys/ucontext.h */
#define TARGET_MC_GET_CLEAR_RET 0x0001
/* FreeBSD's sys/_ucontext.h structures */
typedef struct target_ucontext {
target_sigset_t uc_sigmask;
target_mcontext_t uc_mcontext;
abi_ulong uc_link;
target_stack_t uc_stack;
int32_t uc_flags;
int32_t __spare__[4];
} target_ucontext_t;
#ifdef TARGET_MCONTEXT_SIZE
G_STATIC_ASSERT(TARGET_MCONTEXT_SIZE == sizeof(target_mcontext_t));
G_STATIC_ASSERT(TARGET_UCONTEXT_SIZE == sizeof(target_ucontext_t));
#endif /* TARGET_MCONTEXT_SIZE */
#endif /* TARGET_OS_UCONTEXT_H */