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79 lines
3.2 KiB
79 lines
3.2 KiB
#!/usr/bin/m4
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#
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# Copyright (c) 2018 The strace developers.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. The name of the author may not be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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AC_DEFUN([st_STACKTRACE], [dnl
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AC_ARG_ENABLE([stacktrace],
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[AS_HELP_STRING([--enable-stacktrace=yes|no|check],
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[whether to enable stack tracing support, default is check])],
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[case "$enableval" in
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yes|no|check) enable_stacktrace="$enableval" ;;
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*) AC_MSG_ERROR([bad value $enableval for enable-stacktrace option.
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Valid options are: yes, no, check.])
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;;
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esac],
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[enable_stacktrace=check])
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use_unwinder=
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dnl Whether to enable stack tracing support?
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AS_IF([test x"$enable_stacktrace" != xno],
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[st_ARG_LIBDW
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st_ARG_LIBUNWIND
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AS_IF([test "x$with_libdw" = xyes && test "x$with_libunwind" = xyes],
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[AC_MSG_ERROR([--with-libdw=yes and --with-libunwind=yes are mutually exclusive])],
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[test "x$with_libdw" = xyes], [with_libunwind=no],
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[test "x$with_libunwind" = xyes], [with_libdw=no]
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)
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AS_IF([test "x$use_unwinder" = x], [st_LIBDW])
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AS_IF([test "x$use_unwinder" = x], [st_LIBUNWIND])
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AS_IF([test x"$enable_stacktrace$use_unwinder" = xyes],
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[AC_MSG_ERROR([stack tracing support requires an unwinder])]
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)
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]
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)
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AC_MSG_CHECKING([whether to enable stack tracing support])
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AM_CONDITIONAL([ENABLE_STACKTRACE], [test "x$use_unwinder" != x])
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AM_CONDITIONAL([USE_LIBDW], [test "x$use_unwinder" = xlibdw])
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AM_CONDITIONAL([USE_LIBUNWIND], [test "x$use_unwinder" = xlibunwind])
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use_libiberty=
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AS_IF([test "x$use_unwinder" != x],
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[AC_DEFINE([ENABLE_STACKTRACE], [1],
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[Define to enable stack tracing support])
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AC_DEFINE_UNQUOTED([USE_UNWINDER], ["$use_unwinder"],
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[The unwinder to use for stack tracing support])
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AC_MSG_RESULT([yes, using $use_unwinder])
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dnl As stack tracing support is enabled, check for a demangler.
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st_DEMANGLE],
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[AC_MSG_RESULT([no])])
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AM_CONDITIONAL([USE_DEMANGLE], [test "x$use_libiberty" = xyes])
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])
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