[binutils-gdb] i386: Add hidden weak undefined tests

[H.J.Lu]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=0056441823b1b1b2488dcf069b4feb55b00137ba

commit 0056441823b1b1b2488dcf069b4feb55b00137ba
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Thu Jun 22 15:13:15 2017 -0700

    i386: Add hidden weak undefined tests
    
    	* testsuite/ld-i386/i386.exp: Run weakundef1 tests.
    	* testsuite/ld-i386/weakundef1.c: New file.

Diff:
---
 ld/ChangeLog                      |  5 +++++
 ld/testsuite/ld-i386/i386.exp     | 26 ++++++++++++++++++++++++++
 ld/testsuite/ld-i386/weakundef1.c | 16 ++++++++++++++++
 3 files changed, 47 insertions(+)

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 2dfc0a4..1f752e7 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,5 +1,10 @@
 2017-06-22  H.J. Lu  <hongjiu.lu@intel.com>
 
+	* testsuite/ld-i386/i386.exp: Run weakundef1 tests.
+	* testsuite/ld-i386/weakundef1.c: New file.
+
+2017-06-22  H.J. Lu  <hongjiu.lu@intel.com>
+
 	PR ld/21090
 	* testsuite/ld-elfvsb/elfvsb.exp (visibility_run): Pass
 	$NOPIE_CFLAGS if non-PIE is required.
diff --git a/ld/testsuite/ld-i386/i386.exp b/ld/testsuite/ld-i386/i386.exp
index ac4fe33..6c53046 100644
--- a/ld/testsuite/ld-i386/i386.exp
+++ b/ld/testsuite/ld-i386/i386.exp
@@ -1235,6 +1235,32 @@ if { [isnative]
     }
 }
 
+# Must be native with the C compiler.
+if { [isnative]
+     && [istarget "i?86-*-*"]
+     && [which $CC] != 0 } {
+    run_ld_link_exec_tests [list \
+	[list \
+	    "Run weakundef1 without PIE" \
+	    "$NOPIE_LDFLAGS" \
+	    "" \
+	    { weakundef1.c } \
+	    "weakundef1pie" \
+	    "pass.out" \
+	    "$NOPIE_CFLAGS" \
+	] \
+	[list \
+	    "Run weakundef1 with PIE" \
+	    "-pie" \
+	    "" \
+	    { weakundef1.c } \
+	    "weakundef1pie" \
+	    "pass.out" \
+	    "-fPIE" \
+	] \
+    ]
+}
+
 if { !([istarget "i?86-*-linux*"]
        || [istarget "x86_64-*-linux*"]) } {
     return
diff --git a/ld/testsuite/ld-i386/weakundef1.c b/ld/testsuite/ld-i386/weakundef1.c
new file mode 100644
index 0000000..ca54a5e
--- /dev/null
+++ b/ld/testsuite/ld-i386/weakundef1.c
@@ -0,0 +1,16 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+extern int visibility_var_weak
+  __attribute__ ((weak, visibility ("hidden")));
+
+int
+main ()
+{
+  if (&visibility_var_weak != NULL)
+    abort ();
+
+  printf ("PASS\n");
+
+  return 0;
+}