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120 lines
3.7 KiB
120 lines
3.7 KiB
#!/usr/bin/m4
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#
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# Copyright (c) 2013-2018 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_ARG_LIBUNWIND], [dnl
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AC_ARG_WITH([libunwind],
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[AS_HELP_STRING([--with-libunwind],
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[use libunwind to implement stack tracing support])],
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[case "${withval}" in
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yes|no|check) ;;
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*) with_libunwind=yes
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libunwind_CPPFLAGS="-I${withval}/include"
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libunwind_LDFLAGS="-L${withval}/lib" ;;
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esac],
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[with_libunwind=check]
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)
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])
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AC_DEFUN([st_LIBUNWIND], [dnl
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libunwind_CPPFLAGS=
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libunwind_LDFLAGS=
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libunwind_LIBS=
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AS_IF([test "x$with_libunwind" != xno && test "x$use_unwinder" = x],
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[saved_CPPFLAGS="$CPPFLAGS"
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CPPFLAGS="$CPPFLAGS $libunwind_CPPFLAGS"
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AC_CHECK_HEADERS([libunwind-ptrace.h],
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[saved_LDFLAGS="$LDFLAGS"
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LDFLAGS="$LDFLAGS $libunwind_LDFLAGS"
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AC_CHECK_LIB([unwind], [backtrace],
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[libunwind_LIBS="-lunwind $libunwind_LIBS"
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AC_MSG_CHECKING([for unw_create_addr_space in libunwind-generic])
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saved_LIBS="$LIBS"
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LIBS="-lunwind-generic $libunwind_LIBS $LIBS"
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM([[#include <libunwind-ptrace.h>]],
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[[return !unw_create_addr_space(0, 0)]])
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],
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[AC_MSG_RESULT([yes])
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libunwind_LIBS="-lunwind-generic $libunwind_LIBS"
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AC_CHECK_LIB([unwind-ptrace], [_UPT_create],
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[libunwind_LIBS="-lunwind-ptrace $libunwind_LIBS"
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use_unwinder=libunwind
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],
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[if test "x$with_libunwind" != xcheck; then
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AC_MSG_FAILURE([failed to find _UPT_create in libunwind-ptrace])
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fi
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],
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[$libunwind_LIBS]
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)
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],
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[AC_MSG_RESULT([no])
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if test "x$with_libunwind" != xcheck; then
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AC_MSG_FAILURE([failed to find unw_create_addr_space in libunwind-generic])
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fi
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]
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)
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LIBS="$saved_LIBS"
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],
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[if test "x$with_libunwind" != xcheck; then
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AC_MSG_FAILURE([failed to find libunwind])
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fi
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],
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[$libunwind_LIBS]
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)
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LDFLAGS="$saved_LDFLAGS"
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],
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[if test "x$with_libunwind" != xcheck; then
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AC_MSG_FAILURE([failed to find libunwind-ptrace.h])
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fi
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]
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)
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CPPFLAGS="$saved_CPPFLAGS"
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]
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)
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if test "x$use_unwinder" = xlibunwind; then
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AC_DEFINE([USE_LIBUNWIND], 1,
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[Whether to use libunwind for stack tracing])
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AC_SUBST(libunwind_LIBS)
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AC_SUBST(libunwind_LDFLAGS)
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AC_SUBST(libunwind_CPPFLAGS)
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fi
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])
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