From: Petr Machata <pmachata@apm-mustang-ev2-02.ml3.eng.bos.redhat.com>
Date: Wed, 5 Feb 2014 00:57:50 +0000 (-0500)
Subject: Set child stack alignment in trace-clone.c
X-Git-Tag: submit/tizen/20140822.120445~96
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=eebaf54024e43902c3aac2ba2ebcc28f7c797b8f;p=platform%2Fupstream%2Fltrace.git

Set child stack alignment in trace-clone.c

- This is important on aarch64, which requires 16-byte aligned
  stack pointer.  This might be relevant on other arches as well,
  I suspect we just happened to get the 16-byte boundary in some
  cases.
---

diff --git a/testsuite/ltrace.minor/trace-clone.c b/testsuite/ltrace.minor/trace-clone.c
index db1936d..ded930c 100644
--- a/testsuite/ltrace.minor/trace-clone.c
+++ b/testsuite/ltrace.minor/trace-clone.c
@@ -8,6 +8,7 @@
 #include <sys/types.h>
 #include <stdlib.h>
 #include <sched.h>
+#include <unistd.h>
 
 int child ()
 {
@@ -22,7 +23,8 @@ typedef int (* myfunc)();
 int main ()
 {
   pid_t pid;
-  static char stack[STACK_SIZE];
+  static __attribute__ ((aligned (16))) char stack[STACK_SIZE];
+
 #ifdef __ia64__
   pid = __clone2((myfunc)&child, stack, STACK_SIZE, CLONE_FS, NULL);
 #else