| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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 COPYRIGHT HOLDERS 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 |
| * COPYRIGHT OWNER 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. |
| */ |
| |
| #include <signal.h> |
| #include <string.h> |
| |
| #include "bionic/pthread_internal.h" |
| |
| const char* const sys_siglist[NSIG] = { |
| #define __BIONIC_SIGDEF(signal_number, signal_description) [signal_number] = signal_description, |
| #include "private/bionic_sigdefs.h" |
| }; |
| |
| const char* const sys_signame[NSIG] = { |
| #define __BIONIC_SIGDEF(signal_number, unused) [signal_number] = &(#signal_number)[3], |
| #include "private/bionic_sigdefs.h" |
| }; |
| |
| extern "C" __LIBC_HIDDEN__ const char* __strsignal(int signal_number, char* buf, size_t buf_len) { |
| const char* signal_name = nullptr; |
| if (signal_number >= 0 && signal_number < NSIG) { |
| signal_name = sys_siglist[signal_number]; |
| } |
| if (signal_name != nullptr) { |
| return signal_name; |
| } |
| |
| const char* prefix = "Unknown"; |
| if (signal_number >= SIGRTMIN && signal_number <= SIGRTMAX) { |
| prefix = "Real-time"; |
| signal_number -= SIGRTMIN; |
| } |
| size_t length = snprintf(buf, buf_len, "%s signal %d", prefix, signal_number); |
| if (length >= buf_len) { |
| return nullptr; |
| } |
| return buf; |
| } |
| |
| char* strsignal(int signal_number) { |
| bionic_tls& tls = __get_bionic_tls(); |
| return const_cast<char*>(__strsignal(signal_number, tls.strsignal_buf, sizeof(tls.strsignal_buf))); |
| } |