qemu/linux-user/signal-common.h
Laurent Vivier cb6ac802ef linux-user: define TARGET_ARCH_HAS_SETUP_FRAME
Instead of calling setup_frame() conditionally to a list of known targets,
define TARGET_ARCH_HAS_SETUP_FRAME if the target provides the function
and call it only if the macro is defined.

Move declarations of setup_frame() and setup_rt_frame() to
linux-user/signal-common.h

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180424192635.6027-21-laurent@vivier.eu>
2018-04-30 09:47:47 +02:00

58 lines
2.0 KiB
C

/*
* Emulation of Linux signals
*
* Copyright (c) 2003 Fabrice Bellard
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SIGNAL_COMMON_H
#define SIGNAL_COMMON_H
extern struct target_sigaltstack target_sigaltstack_used;
static inline int on_sig_stack(unsigned long sp)
{
return (sp - target_sigaltstack_used.ss_sp
< target_sigaltstack_used.ss_size);
}
static inline int sas_ss_flags(unsigned long sp)
{
return (target_sigaltstack_used.ss_size == 0 ? SS_DISABLE
: on_sig_stack(sp) ? SS_ONSTACK : 0);
}
static inline void target_sigemptyset(target_sigset_t *set)
{
memset(set, 0, sizeof(*set));
}
void host_to_target_sigset_internal(target_sigset_t *d,
const sigset_t *s);
void target_to_host_sigset_internal(sigset_t *d,
const target_sigset_t *s);
void tswap_siginfo(target_siginfo_t *tinfo,
const target_siginfo_t *info);
void set_sigmask(const sigset_t *set);
void force_sig(int sig);
void force_sigsegv(int oldsig);
#if defined(TARGET_ARCH_HAS_SETUP_FRAME)
void setup_frame(int sig, struct target_sigaction *ka,
target_sigset_t *set, CPUArchState *env);
#endif
void setup_rt_frame(int sig, struct target_sigaction *ka,
target_siginfo_t *info,
target_sigset_t *set, CPUArchState *env);
#endif