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-rw-r--r--sysdeps/i386/configure33
-rw-r--r--sysdeps/i386/configure.ac23
2 files changed, 56 insertions, 0 deletions
diff --git a/sysdeps/i386/configure b/sysdeps/i386/configure
index 4cf968d8bc..90c63caf35 100644
--- a/sysdeps/i386/configure
+++ b/sysdeps/i386/configure
@@ -50,6 +50,39 @@ fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_compiler_builtin_inlined" >&5
 $as_echo "$libc_compiler_builtin_inlined" >&6; }
 
+if test "$static_pie" = yes; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker static PIE support" >&5
+$as_echo_n "checking for linker static PIE support... " >&6; }
+if ${libc_cv_ld_static_pie+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat > conftest.s <<\EOF
+	.text
+	.global _start
+_start:
+	movl	_start@GOT(%ebx), %eax
+EOF
+  libc_cv_pie_option="-Wl,-pie"
+  libc_cv_ld_static_pie=no
+  if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostartfiles -nostdlib $no_ssp $libc_cv_pie_option -o conftest conftest.s 1>&5'
+  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    if $READELF -r conftest | grep 'There are no relocations in this file.' > /dev/null; then
+      libc_cv_ld_static_pie=yes
+    fi
+  fi
+rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ld_static_pie" >&5
+$as_echo "$libc_cv_ld_static_pie" >&6; }
+  if test "$libc_cv_ld_static_pie" != yes; then
+    as_fn_error $? "linker support for static PIE needed" "$LINENO" 5
+  fi
+fi
+
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Intel MPX support" >&5
 $as_echo_n "checking for Intel MPX support... " >&6; }
 if ${libc_cv_asm_mpx+:} false; then :
diff --git a/sysdeps/i386/configure.ac b/sysdeps/i386/configure.ac
index b598b120bc..6d2068d2b3 100644
--- a/sysdeps/i386/configure.ac
+++ b/sysdeps/i386/configure.ac
@@ -30,6 +30,29 @@ LIBC_COMPILER_BUILTIN_INLINED(
 *** Please use host i786, i686, i586, or i486.
 *** For example: /source/glibc/configure CFLAGS='-O2 -march=i686' ...])])
 
+dnl Check if linker can convert "movl main@GOT(%ebx), %eax" to
+dnl "leal main@GOTOFF(%ebx), %eax" for static PIE.
+if test "$static_pie" = yes; then
+  AC_CACHE_CHECK(for linker static PIE support, libc_cv_ld_static_pie, [dnl
+cat > conftest.s <<\EOF
+	.text
+	.global _start
+_start:
+	movl	_start@GOT(%ebx), %eax
+EOF
+  libc_cv_pie_option="-Wl,-pie"
+  libc_cv_ld_static_pie=no
+  if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostartfiles -nostdlib $no_ssp $libc_cv_pie_option -o conftest conftest.s 1>&AS_MESSAGE_LOG_FD); then
+    if $READELF -r conftest | grep 'There are no relocations in this file.' > /dev/null; then
+      libc_cv_ld_static_pie=yes
+    fi
+  fi
+rm -f conftest*])
+  if test "$libc_cv_ld_static_pie" != yes; then
+    AC_MSG_ERROR([linker support for static PIE needed])
+  fi
+fi
+
 dnl Check whether asm supports Intel MPX
 AC_CACHE_CHECK(for Intel MPX support, libc_cv_asm_mpx, [dnl
 cat > conftest.s <<\EOF