1 /* backtrace-supported.h.in -- Whether stack backtrace is supported. 2 Copyright (C) 2012-2016 Free Software Foundation, Inc. 3 Written by Ian Lance Taylor, Google. 4 5 Redistribution and use in source and binary forms, with or without 6 modification, are permitted provided that the following conditions are 7 met: 8 9 (1) Redistributions of source code must retain the above copyright 10 notice, this list of conditions and the following disclaimer. 11 12 (2) Redistributions in binary form must reproduce the above copyright 13 notice, this list of conditions and the following disclaimer in 14 the documentation and/or other materials provided with the 15 distribution. 16 17 (3) The name of the author may not be used to 18 endorse or promote products derived from this software without 19 specific prior written permission. 20 21 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 24 DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 25 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 27 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 29 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 30 IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 POSSIBILITY OF SUCH DAMAGE. */ 32 33 /* The file backtrace-supported.h.in is used by configure to generate 34 the file backtrace-supported.h. The file backtrace-supported.h may 35 be #include'd to see whether the backtrace library will be able to 36 get a backtrace and produce symbolic information. */ 37 38 39 /* BACKTRACE_SUPPORTED will be #define'd as 1 if the backtrace library 40 should work, 0 if it will not. Libraries may #include this to make 41 other arrangements. */ 42 43 #define BACKTRACE_SUPPORTED 1 44 45 /* BACKTRACE_USES_MALLOC will be #define'd as 1 if the backtrace 46 library will call malloc as it works, 0 if it will call mmap 47 instead. This may be used to determine whether it is safe to call 48 the backtrace functions from a signal handler. In general this 49 only applies to calls like backtrace and backtrace_pcinfo. It does 50 not apply to backtrace_simple, which never calls malloc. It does 51 not apply to backtrace_print, which always calls fprintf and 52 therefore malloc. */ 53 54 #define BACKTRACE_USES_MALLOC 0 55 56 /* BACKTRACE_SUPPORTS_THREADS will be #define'd as 1 if the backtrace 57 library is configured with threading support, 0 if not. If this is 58 0, the threaded parameter to backtrace_create_state must be passed 59 as 0. */ 60 61 #define BACKTRACE_SUPPORTS_THREADS 1 62 63 /* BACKTRACE_SUPPORTS_DATA will be #defined'd as 1 if the backtrace_syminfo 64 will work for variables. It will always work for functions. */ 65 66 #define BACKTRACE_SUPPORTS_DATA 1 67