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authorUlrich Drepper <drepper@redhat.com>2005-01-22 07:55:35 +0000
committerUlrich Drepper <drepper@redhat.com>2005-01-22 07:55:35 +0000
commitbe184b1d265431c975332eea4047d3a69f7e9f57 (patch)
tree86d70d6b49871e35e619503089b6ecc155024616 /elf/tst-alignmod2.c
parent57b47af94b3c886ca65e32c41a9f665baaf823f0 (diff)
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Update.
2005-01-21 Jakub Jelinek <jakub@redhat.com> * elf/Makefile: Add rules to build and run tst-align2. * elf/tst-align2.c: New test. * elf/tst-alignmod2.c: New file. * sysdeps/powerpc/tst-stack-align.h: New file. * sysdeps/i386/dl-machine.h (RTLD_START): Align stack and clear frame pointer before calling _dl_init. * sysdeps/x86_64/dl-machine.h (RTLD_START): Likewise.
Diffstat (limited to 'elf/tst-alignmod2.c')
-rw-r--r--elf/tst-alignmod2.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/elf/tst-alignmod2.c b/elf/tst-alignmod2.c
new file mode 100644
index 0000000000..21dcc535c0
--- /dev/null
+++ b/elf/tst-alignmod2.c
@@ -0,0 +1,60 @@
+/* Copyright (C) 2003, 2005 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
+
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <tst-stack-align.h>
+#include <unistd.h>
+
+static int res, *fdp;
+static bool *test_destructorsp;
+
+static void __attribute__((constructor))
+con (void)
+{
+ res = TEST_STACK_ALIGN () ? -1 : 1;
+}
+
+void
+in_dso (int *result, bool *test_destructors, int *fd)
+{
+ if (!res)
+ {
+ puts ("constructor has not been run");
+ *result = 1;
+ }
+ else if (res != 1)
+ {
+ puts ("constructor has been run without sufficient alignment");
+ *result = 1;
+ }
+
+ test_destructorsp = test_destructors;
+ fdp = fd;
+}
+
+static void __attribute__((destructor))
+des (void)
+{
+ if (!test_destructorsp || !*test_destructorsp)
+ return;
+
+ char c = TEST_STACK_ALIGN () ? 'D' : 'C';
+ write (*fdp, &c, 1);
+}