freebsd-dev/sys/compat/linux/linux.h
Dmitry Chagin 4ab7403bbd Rework signal code to allow using it by other modules, like linprocfs:
1. Linux sigset always 64 bit on all platforms. In order to move Linux
sigset code to the linux_common module define it as 64 bit int. Move
Linux sigset manipulation routines to the MI path.

2. Move Linux signal number definitions to the MI path. In general, they
are the same on all platforms except for a few signals.

3. Map Linux RT signals to the FreeBSD RT signals and hide signal conversion
tables to avoid conversion errors.

4. Emulate Linux SIGPWR signal via FreeBSD SIGRTMIN signal which is outside
of allowed on Linux signal numbers.

PR:		197216
2015-05-24 17:47:20 +00:00

96 lines
3.0 KiB
C

/*-
* Copyright (c) 2015 Dmitry Chagin
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _LINUX_MI_H_
#define _LINUX_MI_H_
/* sigaltstack */
#define LINUX_SS_ONSTACK 1
#define LINUX_SS_DISABLE 2
int linux_to_bsd_sigaltstack(int lsa);
int bsd_to_linux_sigaltstack(int bsa);
/* sigset */
typedef struct {
uint64_t __mask;
} l_sigset_t;
/* primitives to manipulate sigset_t */
#define LINUX_SIGEMPTYSET(set) (set).__mask = 0
#define LINUX_SIGISMEMBER(set, sig) (1UL & ((set).__mask >> _SIG_IDX(sig)))
#define LINUX_SIGADDSET(set, sig) (set).__mask |= 1UL << _SIG_IDX(sig)
void linux_to_bsd_sigset(l_sigset_t *, sigset_t *);
void bsd_to_linux_sigset(sigset_t *, l_sigset_t *);
/* signaling */
#define LINUX_SIGHUP 1
#define LINUX_SIGINT 2
#define LINUX_SIGQUIT 3
#define LINUX_SIGILL 4
#define LINUX_SIGTRAP 5
#define LINUX_SIGABRT 6
#define LINUX_SIGIOT LINUX_SIGABRT
#define LINUX_SIGBUS 7
#define LINUX_SIGFPE 8
#define LINUX_SIGKILL 9
#define LINUX_SIGUSR1 10
#define LINUX_SIGSEGV 11
#define LINUX_SIGUSR2 12
#define LINUX_SIGPIPE 13
#define LINUX_SIGALRM 14
#define LINUX_SIGTERM 15
#define LINUX_SIGSTKFLT 16
#define LINUX_SIGCHLD 17
#define LINUX_SIGCONT 18
#define LINUX_SIGSTOP 19
#define LINUX_SIGTSTP 20
#define LINUX_SIGTTIN 21
#define LINUX_SIGTTOU 22
#define LINUX_SIGURG 23
#define LINUX_SIGXCPU 24
#define LINUX_SIGXFSZ 25
#define LINUX_SIGVTALRM 26
#define LINUX_SIGPROF 27
#define LINUX_SIGWINCH 28
#define LINUX_SIGIO 29
#define LINUX_SIGPOLL LINUX_SIGIO
#define LINUX_SIGPWR 30
#define LINUX_SIGSYS 31
#define LINUX_SIGTBLSZ 31
#define LINUX_SIGRTMIN 32
#define LINUX_SIGRTMAX 64
#define LINUX_SIG_VALID(sig) ((sig) <= LINUX_SIGRTMAX && (sig) > 0)
int linux_to_bsd_signal(int sig);
int bsd_to_linux_signal(int sig);
#endif /* _LINUX_MI_H_ */