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authorSzabolcs Nagy <szabolcs.nagy@arm.com>2021-01-20 12:26:31 +0000
committerSzabolcs Nagy <szabolcs.nagy@arm.com>2021-01-21 15:54:50 +0000
commit374cef32ac36d956f75ccc6416872498bbe66e82 (patch)
treeb18b4acae8e2eb2e0ded3377e609e46aad955a5a /configure
parentbfe04789a8d9014cf3177137651f8f93dd4a00ca (diff)
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configure: Check for static PIE support
Add SUPPORT_STATIC_PIE that targets can define if they support
static PIE. This requires PI_STATIC_AND_HIDDEN support and various
linker features as described in

  commit 9d7a3741c9e59eba87fb3ca6b9f979befce07826
  Add --enable-static-pie configure option to build static PIE [BZ #19574]

Currently defined on x86_64, i386 and aarch64 where static PIE is
known to work.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
Diffstat (limited to 'configure')
-rwxr-xr-xconfigure13
1 files changed, 13 insertions, 0 deletions
diff --git a/configure b/configure
index 49f7b32b52..1dc3af60b4 100755
--- a/configure
+++ b/configure
@@ -6814,6 +6814,19 @@ libc_cv_multidir=`${CC-cc} $CFLAGS $CPPFLAGS -print-multi-directory`
 
 
 if test "$static_pie" = yes; then
+  # Check target support for static PIE
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifndef SUPPORT_STATIC_PIE
+# error static PIE is not supported
+#endif
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  as_fn_error $? "the architecture does not support static PIE" "$LINENO" 5
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   # The linker must support --no-dynamic-linker.
   if test "$libc_cv_no_dynamic_linker" != yes; then
     as_fn_error $? "linker support for --no-dynamic-linker needed" "$LINENO" 5