| GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. |
| # Local configure fragment for sysdeps/powerpc/powerpc64. |
| |
| # The Aix ld uses global .symbol_names instead of symbol_names |
| # and unfortunately early Linux PPC64 linkers use it as well. |
| AC_CACHE_CHECK(for support for omitting dot symbols, |
| libc_cv_omit_dot_syms, [dnl |
| libc_cv_omit_dot_syms=no |
| echo 'void foo (void) {}' > conftest.c |
| if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then |
| if grep -w '\.foo' conftest.s > /dev/null; then |
| : |
| else |
| libc_cv_omit_dot_syms=yes |
| fi |
| fi |
| rm -f conftest.c conftest.s |
| ]) |
| if test x$libc_cv_omit_dot_syms != xyes; then |
| AC_DEFINE(HAVE_ASM_GLOBAL_DOT_NAME) |
| fi |
| |
| AC_CACHE_CHECK(for linker support for overlapping .opd entries, |
| libc_cv_overlapping_opd, [dnl |
| libc_cv_overlapping_opd=no |
| echo 'void foo (void) {}' > conftest.c |
| if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then |
| changequote(,)dnl |
| if grep '\.TOC\.@tocbase' conftest.s > /dev/null; then |
| if grep '\.TOC\.@tocbase[ ]*,[ ]*0' conftest.s > /dev/null; then |
| : |
| else |
| libc_cv_overlapping_opd=yes |
| fi |
| fi |
| changequote([,])dnl |
| fi |
| rm -f conftest.c conftest.s |
| ]) |
| if test x$libc_cv_overlapping_opd = xyes; then |
| AC_DEFINE(USE_PPC64_OVERLAPPING_OPD) |
| fi |