This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |
Other format: | [Raw text] |
Currently the --enable-plugin configure option fails on darwin because the exported symbol tests require objdump, which is missing on that platform, and the required usage of "-undefined dynamic_lookup" is missing from the linkages on darwin. This patch solves these issues by substituting "$gcc_cv_nm -g" for missing "$gcc_cv_objdump -T" in the tests for exported symbols and adding "-undefined dynamic_lookup" on darwin to the linkages. Bootstrapped and regression tested on x86_64-apple-darwin10 using gcc-4_5-branch. Okay for gcc trunk and gcc 4.5.1? Jack ps We really want this in gcc 4.5.1 as the dragon-egg developers would rather work with llvm svn and the stable FSF gcc release. 2010-04-11 Jack Howarth <howarth@bromo.med.uc.edu> PR 43715 * gcc/configure.ac: Use "$gcc_cv_nm -g" to check for exported symbols. Use "-undefined dynamic_lookup" on darwin. * gcc/configure: Regenerate. * testsuite/lib/plugin-support.exp: Use "-undefined dynamic_lookup" on darwin. Index: testsuite/lib/plugin-support.exp =================================================================== --- testsuite/lib/plugin-support.exp (revision 158199) +++ testsuite/lib/plugin-support.exp (working copy) @@ -88,6 +88,10 @@ set optstr "$includes $extra_flags -DIN_GCC -fPIC -shared" + if { [ istarget *-*-darwin* ] } { + set optstr [concat $optstr "-undefined dynamic_lookup"] + } + # Temporarily switch to the environment for the plugin compiler. restore_ld_library_path_env_vars set status [remote_exec build "$PLUGINCC $PLUGINCFLAGS $plugin_src $optstr -o $plugin_lib"] Index: configure.ac =================================================================== --- configure.ac (revision 158199) +++ configure.ac (working copy) @@ -4384,12 +4384,12 @@ AC_MSG_CHECKING([for exported symbols]) echo "int main() {return 0;} int foobar() {return 0;}" > conftest.c ${CC} ${CFLAGS} ${LDFLAGS} conftest.c -o conftest > /dev/null 2>&1 - if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then + if $gcc_cv_nm -g conftest | grep foobar > /dev/null; then : # No need to use a flag else AC_MSG_CHECKING([for -rdynamic]) ${CC} ${CFLAGS} ${LDFLAGS} -rdynamic conftest.c -o conftest > /dev/null 2>&1 - if $gcc_cv_objdump -T conftest | grep foobar > /dev/null; then + if $gcc_cv_nm -g conftest | grep foobar > /dev/null; then pluginlibs="-rdynamic" else enable_plugin=no @@ -4406,7 +4406,14 @@ # Check that we can build shared objects with -fPIC -shared saved_LDFLAGS="$LDFLAGS" - LDFLAGS="$LDFLAGS -fPIC -shared" + case "${target}" in + *-*-darwin*) + LDFLAGS="$LDFLAGS -fPIC -shared -undefined dynamic_lookup" + ;; + *) + LDFLAGS="$LDFLAGS -fPIC -shared" + ;; + esac AC_MSG_CHECKING([for -fPIC -shared]) AC_TRY_LINK( [extern int X;],[return X == 0;],
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |