Add ia64 pipe result support. Relax pipe syscall test a little.

* tapset/syscalls2.stp (syscall.pipe.return): ia64 provides pipe0, pipe1
  results through (user) registers.
* testsuite/systemtap.syscall/pipe.c: Only expect zero as input fildes.

1 files changed, 3 insertions, 3 deletions

diff --git a/testsuite/systemtap.syscall/pipe.c b/testsuite/systemtap.syscall/pipe.c
index 36e86e9f..8eea2910 100644
--- a/testsuite/systemtap.syscall/pipe.c
+++ b/testsuite/systemtap.syscall/pipe.c
@@ -9,11 +9,11 @@
 int main()
 {
   int pipefd[2];
-  pipefd[0] = 42;
-  pipefd[1] = 13;
+  pipefd[0] = 0;
+  pipefd[1] = 0;
 
   pipe (pipefd);
-  //staptest// pipe (\[42, 13\]) = 0
+  //staptest// pipe (\[0, 0\]) = 0
 
 #ifdef O_CLOEXEC
   pipe2 (pipefd, O_CLOEXEC);