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-rw-r--r--sysdeps/powerpc/powerpc64/configure.in42
1 files changed, 42 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/configure.in b/sysdeps/powerpc/powerpc64/configure.in
new file mode 100644
index 0000000000..67aac663d8
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/configure.in
@@ -0,0 +1,42 @@
+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