blob: ea8673db8decef3448344b421bac9547b050e464 [file] [log] [blame]
Josh Gao6fcba932018-02-09 13:38:32 -08001/*
2 * Copyright (C) 2018 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#pragma once
30
31#include <sys/cdefs.h>
32
33#include <signal.h>
34
35// Realtime signals reserved for internal use:
36// 32 (__SIGRTMIN + 0) POSIX timers
37// 33 (__SIGRTMIN + 1) libbacktrace
38// 34 (__SIGRTMIN + 2) libcore
39// 35 (__SIGRTMIN + 3) debuggerd -b
40//
41// If you change this, also change __ndk_legacy___libc_current_sigrtmin
42// in <android/legacy_signal_inlines.h> to match.
43
44#define __SIGRT_RESERVED 4
45static inline __always_inline sigset64_t filter_reserved_signals(sigset64_t sigset) {
46 for (int signo = __SIGRTMIN; signo < __SIGRTMIN + __SIGRT_RESERVED; ++signo) {
47 sigdelset64(&sigset, signo);
48 }
49 return sigset;
50}