libbacktrace/backtrace-supported.h.in

   1 /* backtrace-supported.h.in -- Whether stack backtrace is supported.
   2    Copyright (C) 2012-2021 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 @BACKTRACE_SUPPORTED@
  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 @BACKTRACE_USES_MALLOC@
  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 @BACKTRACE_SUPPORTS_THREADS@
  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 @BACKTRACE_SUPPORTS_DATA@