diff mbox series

[v2,6/7] configure: Override the os default with --disable-pie

Message ID 20191218223441.23852-7-richard.henderson@linaro.org
State Superseded
Headers show
Series configure: Improve PIE and other linkage | expand

Commit Message

Richard Henderson Dec. 18, 2019, 10:34 p.m. UTC 
Some distributions, e.g. Ubuntu 19.10, enable PIE by default.
If for some reason one wishes to build a non-pie binary, we
must provide additional options to override.

At the same time, reorg the code to an elif chain.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>

Reviewed-by: Thomas Huth <thuth@redhat.com>

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

---
 configure | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

-- 
2.20.1
diff mbox series

Patch

diff --git a/configure b/configure
index 2503288654..f6ff079fab 100755
--- a/configure
+++ b/configure
@@ -2035,19 +2035,18 @@  if compile_prog "-Werror -fno-pie" "-no-pie"; then
   LDFLAGS_NOPIE="-no-pie"
 fi
 
-if test "$pie" != "no" ; then
-  if compile_prog "-fPIE -DPIE" "-pie"; then
-    QEMU_CFLAGS="-fPIE -DPIE $QEMU_CFLAGS"
-    LDFLAGS="-pie $LDFLAGS"
-    pie="yes"
-  else
-    if test "$pie" = "yes"; then
-      error_exit "PIE not available due to missing toolchain support"
-    else
-      echo "Disabling PIE due to missing toolchain support"
-      pie="no"
-    fi
-  fi
+if test "$pie" = "no"; then
+  QEMU_CFLAGS="$CFLAGS_NOPIE $QEMU_CFLAGS"
+  LDFLAGS="$LDFLAGS_NOPIE $LDFLAGS"
+elif compile_prog "-fPIE -DPIE" "-pie"; then
+  QEMU_CFLAGS="-fPIE -DPIE $QEMU_CFLAGS"
+  LDFLAGS="-pie $LDFLAGS"
+  pie="yes"
+elif test "$pie" = "yes"; then
+  error_exit "PIE not available due to missing toolchain support"
+else
+  echo "Disabling PIE due to missing toolchain support"
+  pie="no"
 fi
 
 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.