Add a test for prelink output

This test applies to i386 and x86_64 which set R_386_GLOB_DAT and
R_X86_64_GLOB_DAT to ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA.

	[BZ #19178]
	* sysdeps/x86/Makefile (tests): Add tst-prelink.
	(tst-prelink-ENV): New.
	($(objpfx)tst-prelink-conflict.out): Likewise.
	($(objpfx)tst-prelink-cmp.out): Likewise.
	(tests-special): Add $(objpfx)tst-prelink-cmp.out.
	* sysdeps/x86/tst-prelink.c: New file.
	* sysdeps/x86/tst-prelink.exp: Likewise.

diff --git a/ChangeLog b/ChangeLog
index 8a0882c661313962b58fc1a1711524e308334a67..51faaed4c236f59acffd6a200b1f187f19e7b5b4 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2015-11-10  H.J. Lu  <hongjiu.lu@intel.com>
+
+       [BZ #19178]
+       * sysdeps/x86/Makefile (tests): Add tst-prelink.
+       (tst-prelink-ENV): New.
+       ($(objpfx)tst-prelink-conflict.out): Likewise.
+       ($(objpfx)tst-prelink-cmp.out): Likewise.
+       (tests-special): Add $(objpfx)tst-prelink-cmp.out.
+       * sysdeps/x86/tst-prelink.c: New file.
+       * sysdeps/x86/tst-prelink.exp: Likewise.
+
 2015-11-10  Joseph Myers  <joseph@codesourcery.com>
 
        * math/auto-libm-test-in: Add another test of pow.

diff --git a/sysdeps/x86/Makefile b/sysdeps/x86/Makefile
index 0de4f42168c0d3b601aebfe27dfd9d30df514bd7..a2f4f8adf52c7e3bd5c789c7253d890412e0788d 100644 (file)
--- a/sysdeps/x86/Makefile
+++ b/sysdeps/x86/Makefile
@@ -7,4 +7,19 @@ sysdep-dl-routines += dl-get-cpu-features
 
 tests += tst-get-cpu-features
 tests-static += tst-get-cpu-features-static
+
+tests += tst-prelink
+tst-prelink-ENV = LD_TRACE_PRELINKING=1
+
+$(objpfx)tst-prelink-conflict.out: $(objpfx)tst-prelink.out
+       grep stdout $< | grep conflict | $(AWK) '{ print $$10, $$11 }' > $@
+
+$(objpfx)tst-prelink-cmp.out: $(..)sysdeps/x86/tst-prelink.exp \
+                             $(objpfx)tst-prelink-conflict.out
+       cmp $^ > $@; \
+       $(evaluate-test)
+
+ifeq ($(run-built-tests),yes)
+tests-special += $(objpfx)tst-prelink-cmp.out
+endif
 endif

diff --git a/sysdeps/x86/tst-prelink.c b/sysdeps/x86/tst-prelink.c
new file mode 100644 (file)
index 0000000..ab61c4e
--- /dev/null
+++ b/sysdeps/x86/tst-prelink.c
@@ -0,0 +1,30 @@
+/* Test the output from the environment variable, LD_TRACE_PRELINKING,
+   for prelink.
+   Copyright (C) 2015 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <stdio.h>
+
+static int
+do_test (void)
+{
+  fprintf (stdout, "hello\n");
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"

diff --git a/sysdeps/x86/tst-prelink.exp b/sysdeps/x86/tst-prelink.exp
new file mode 100644 (file)
index 0000000..b35b4c9
--- /dev/null
+++ b/sysdeps/x86/tst-prelink.exp
@@ -0,0 +1 @@
+/0 stdout