Set NOPIE_CFLAGS and NOPIE_LDFLAGS

[deliverable/binutils-gdb.git] / ld / testsuite / config / default.exp

diff --git a/ld/testsuite/config/default.exp b/ld/testsuite/config/default.exp
index 5acc963dbbf52cb53459a3d0741d234156db7918..5b3e29f28a2d19866e87549cdecc5c8a3c44d0f0 100644 (file)
--- a/ld/testsuite/config/default.exp
+++ b/ld/testsuite/config/default.exp
@@ -313,3 +313,42 @@ if { ![info exists PLT_CFLAGS] } then {
        set PLT_CFLAGS ""
     }
 }
+
+# Set NOPIE_CFLAGS to "-fno-PIE" and NOPIE_LDFLAGS to "-no-pie" if
+# target compiler supports them.
+
+if { ![info exists NOPIE_CFLAGS] || ![info exists NOPIE_LDFLAGS] } then {
+    if { [which $CC] != 0 } {
+       # Check if gcc supports -fno-PIE -no-pie.
+       set flags ""
+       if [board_info [target_info name] exists cflags] {
+           append flags " [board_info [target_info name] cflags]"
+       }
+       if [board_info [target_info name] exists ldflags] {
+           append flags " [board_info [target_info name] ldflags]"
+       }
+
+       set basename "tmpdir/nopie[pid]"
+       set src ${basename}.c
+       set output ${basename}
+       set f [open $src "w"]
+       puts $f "int main (void) { return 0; }"
+       close $f
+       remote_download host $src
+       set nopie_available [run_host_cmd_yesno "$CC" "$flags -fno-PIE -no-pie $src -o $output"]
+       remote_file host delete $src
+       remote_file host delete $output
+       file delete $src
+
+       if { $nopie_available == 1 } then {
+           set NOPIE_CFLAGS "-fno-PIE"
+           set NOPIE_LDFLAGS "-no-pie"
+       } else {
+           set NOPIE_CFLAGS ""
+           set NOPIE_LDFLAGS ""
+       }
+    } else {
+       set NOPIE_CFLAGS ""
+       set NOPIE_LDFLAGS ""
+    }
+}