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dnl Copyright (C) 2009 Sun Microsystems
dnl This file is free software; Sun Microsystems
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl ---------------------------------------------------------------------------
dnl Macro: PANDORA_ENABLE_DTRACE
dnl ---------------------------------------------------------------------------
AC_DEFUN([PANDORA_ENABLE_DTRACE],[
AC_ARG_ENABLE([dtrace],
[AS_HELP_STRING([--disable-dtrace],
[Build with support for the DTRACE. @<:@default=on@:>@])],
[ac_cv_enable_dtrace="$enableval"],
[ac_cv_enable_dtrace="yes"])
AS_IF([test "$ac_cv_enable_dtrace" = "yes"],[
AC_CHECK_PROGS([DTRACE], [dtrace])
AC_CHECK_HEADERS(sys/sdt.h)
AS_IF([test "x$ac_cv_prog_DTRACE" = "xdtrace" -a "x${ac_cv_header_sys_sdt_h}" = "xyes"],[
AC_CACHE_CHECK([if dtrace works],[ac_cv_dtrace_works],[
cat >conftest.d <<_ACEOF
provider Example {
probe increment(int);
};
_ACEOF
$DTRACE -h -o conftest.h -s conftest.d 2>/dev/zero
AS_IF([test $? -eq 0],[ac_cv_dtrace_works=yes],
[ac_cv_dtrace_works=no])
rm -f conftest.h conftest.d
])
AS_IF([test "x$ac_cv_dtrace_works" = "xyes"],[
AC_DEFINE([HAVE_DTRACE], [1], [Enables DTRACE Support])
])
AC_CACHE_CHECK([if dtrace should instrument object files],
[ac_cv_dtrace_needs_objects],[
dnl DTrace on MacOSX does not use -G option
cat >conftest.d <<_ACEOF
provider Example {
probe increment(int);
};
_ACEOF
$DTRACE -G -o conftest.d.o -s conftest.d 2>/dev/zero
AS_IF([test $? -eq 0],[ac_cv_dtrace_needs_objects=yes],
[ac_cv_dtrace_needs_objects=no])
rm -f conftest.d.o conftest.d
])
AC_SUBST(DTRACEFLAGS) dnl TODO: test for -G on OSX
ac_cv_have_dtrace=yes
])])
AM_CONDITIONAL([HAVE_DTRACE], [test "x$ac_cv_dtrace_works" = "xyes"])
AM_CONDITIONAL([DTRACE_NEEDS_OBJECTS],
[test "x$ac_cv_dtrace_needs_objects" = "xyes"])
])
dnl ---------------------------------------------------------------------------
dnl End Macro: PANDORA_ENABLE_DTRACE
dnl ---------------------------------------------------------------------------
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