PATCH: ld/2218: Weak undefined symbol doesn't work properly with PIE

[H. J. Lu]

On Tue, Feb 21, 2006 at 10:49:19AM +1030, Alan Modra wrote:
> 
> Please check in pie.exp that -pie is supported by compiling and linking
> a simple "int(main){return 0;}".  Not all compilers support -pie, and
> not all systems have Scrt0.o installed.
> 

I will check it in shortly. Tested with icc on Linux.


H.J.
----
2006-02-20  H.J. Lu  <hongjiu.lu@intel.com>

	* ld-pie/pie.c: New file.

	* ld-pie/pie.exp: Check if compiler supports -pie.

--- ld/testsuite/ld-pie/pie.c.check	2006-02-20 18:41:43.000000000 -0800
+++ ld/testsuite/ld-pie/pie.c	2006-02-20 18:41:35.000000000 -0800
@@ -0,0 +1,5 @@
+int
+main ()
+{
+  return 0;
+}
--- ld/testsuite/ld-pie/pie.exp.check	2006-02-20 11:58:19.000000000 -0800
+++ ld/testsuite/ld-pie/pie.exp	2006-02-20 18:48:23.000000000 -0800
@@ -24,6 +24,14 @@ if { ![istarget *-*-linux*] } {
     return
 }
 
+# Check if -pie is supported or not.
+send_log "$CC -pie $srcdir/$subdir/pie.c -o tmpdir/pie"
+catch "exec $CC -pie $srcdir/$subdir/pie.c -o tmpdir/pie" exec_output
+send_log "$exec_output\n"
+if { ![string match "" $exec_output] } {
+    return
+}
+
 set array_tests {
     {"weak undefined" "-pie" "" {weakundef.c} "weakundef" "weakundef.out" "-fPIC"}
     {"weak undefined data" "-pie" "" {weakundef-data.c} "weakundef-data" "weakundef.out" "-fPIC"}