[PATCH 01/13] nptl: Add NPTL cases for cancellation failures cases

[Adhemerval Zanella <adhemerval dot zanella at linaro dot org>]

This patch pthread cancellation tests to check for failures cases
wherer the syscall cancel wrapper should both set the error and
the errno values.

Tested on i686, x86_64, x32, powerpc64le, and aarch64.

	* nptl/tst-cancel26.c: New file.
	* nptl/tst-cancel27.c: Likewise.
---
 ChangeLog           |  6 +++++
 nptl/tst-cancel26.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++
 nptl/tst-cancel27.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 144 insertions(+)
 create mode 100644 nptl/tst-cancel26.c
 create mode 100644 nptl/tst-cancel27.c

diff --git a/ChangeLog b/ChangeLog
index e665153..75cd365 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,10 @@
 2015-10-07  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
+	    Phil Blundell <pb@pbcui.dot.net>
+
+	* nptl/tst-cancel26.c: New file.
+	* nptl/tst-cancel27.c: Likewise.
+
+2015-10-07  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 
 	* sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
 	* sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
diff --git a/nptl/tst-cancel26.c b/nptl/tst-cancel26.c
new file mode 100644
index 0000000..9a370d0
--- /dev/null
+++ b/nptl/tst-cancel26.c
@@ -0,0 +1,68 @@
+/* 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 <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static void *
+tf (void *arg)
+{
+  int e, r;
+
+  errno = 0;
+
+  /* This is a cancellation point, but we should not be cancelled.  */
+  r = write (-1, 0, 0);
+  e = errno;
+
+  /* Check that the cancelling syscall wrapper has handled the error correctly.  */
+  if (r != -1 || errno != EBADF)
+    {
+      printf ("write returned %d, errno %d\n", r, e);
+      exit (1);
+    }
+
+  return NULL;
+}
+
+static int
+do_test (void)
+{
+  pthread_t th;
+
+  if (pthread_create (&th, NULL, tf, NULL) != 0)
+    {
+      puts ("create failed");
+      exit (1);
+    }
+
+  void *r;
+  if (pthread_join (th, &r) != 0)
+    {
+      puts ("join failed");
+      exit (1);
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/nptl/tst-cancel27.c b/nptl/tst-cancel27.c
new file mode 100644
index 0000000..aee25c9
--- /dev/null
+++ b/nptl/tst-cancel27.c
@@ -0,0 +1,70 @@
+/* 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 <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static void *
+tf (void *arg)
+{
+  int e, r;
+
+  errno = 0;
+
+  pthread_setcancelstate (PTHREAD_CANCEL_DISABLE, NULL);
+
+  /* This is a cancellation point, but we should not be cancelled.  */
+  r = write (-1, 0, 0);
+  e = errno;
+
+  /* Check that the cancelling syscall wrapper has handled the error correctly.  */
+  if (r != -1 || errno != EBADF)
+    {
+      printf ("write returned %d, errno %d\n", r, e);
+      exit (1);
+    }
+
+  return NULL;
+}
+
+static int
+do_test (void)
+{
+  pthread_t th;
+
+  if (pthread_create (&th, NULL, tf, NULL) != 0)
+    {
+      puts ("create failed");
+      exit (1);
+    }
+
+  void *r;
+  if (pthread_join (th, &r) != 0)
+    {
+      puts ("join failed");
+      exit (1);
+    }
+
+  return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
-- 
1.9.1