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authorH.J. Lu <hjl.tools@gmail.com>2018-07-25 05:00:30 -0700
committerH.J. Lu <hjl.tools@gmail.com>2018-07-25 05:00:30 -0700
commitbd4f7903dfc5d192e987f42b0b30b74225bd075c (patch)
treeb4f302ec279d64ae2301012d2e4e78beb051167b
parent7e28f203451e4e3a59f5ce29de23157f0a4b1fc9 (diff)
downloadglibc-bd4f7903dfc5d192e987f42b0b30b74225bd075c.tar.gz
Add a test for multiple setcontext calls
Check multiple setcontext calls. Reviewed-by: Carlos O'Donell <carlos@redhat.com>. * stdlib/Makefile ((tests): Add tst-setcontext5. * stdlib/tst-setcontext5.c: New file.
-rw-r--r--ChangeLog5
-rw-r--r--stdlib/Makefile2
-rw-r--r--stdlib/tst-setcontext5.c88
3 files changed, 94 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index 86e66efaae..6935bc3b09 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
2018-07-25 H.J. Lu <hongjiu.lu@intel.com>
+ * stdlib/Makefile ((tests): Add tst-setcontext5.
+ * stdlib/tst-setcontext5.c: New file.
+
+2018-07-25 H.J. Lu <hongjiu.lu@intel.com>
+
* stdlib/Makefile (tests): Add tst-setcontext4.
* stdlib/tst-setcontext4.c: New file.
diff --git a/stdlib/Makefile b/stdlib/Makefile
index e3f2093544..403ca22f49 100644
--- a/stdlib/Makefile
+++ b/stdlib/Makefile
@@ -85,7 +85,7 @@ tests := tst-strtol tst-strtod testmb testrand testsort testdiv \
test-at_quick_exit-race test-cxa_atexit-race \
test-on_exit-race test-dlclose-exit-race \
tst-makecontext-align test-bz22786 tst-strtod-nan-sign \
- tst-swapcontext1 tst-setcontext4
+ tst-swapcontext1 tst-setcontext4 tst-setcontext5
tests-internal := tst-strtod1i tst-strtod3 tst-strtod4 tst-strtod5i \
tst-tls-atexit tst-tls-atexit-nodelete
diff --git a/stdlib/tst-setcontext5.c b/stdlib/tst-setcontext5.c
new file mode 100644
index 0000000000..7dcc15cb8e
--- /dev/null
+++ b/stdlib/tst-setcontext5.c
@@ -0,0 +1,88 @@
+/* Check multiple setcontext calls.
+ Copyright (C) 2018 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>
+#include <stdlib.h>
+#include <ucontext.h>
+#include <unistd.h>
+
+static ucontext_t ctx[2];
+static volatile int done;
+
+static void f2 (void);
+
+static void
+__attribute__ ((noinline, noclone))
+f1 (void)
+{
+ printf ("start f1\n");
+ f2 ();
+}
+
+static void
+__attribute__ ((noinline, noclone))
+f2 (void)
+{
+ printf ("start f2\n");
+ if (setcontext (&ctx[1]) != 0)
+ {
+ printf ("%s: setcontext: %m\n", __FUNCTION__);
+ exit (EXIT_FAILURE);
+ }
+}
+
+static void
+f3 (void)
+{
+ printf ("start f3\n");
+ if (done)
+ exit (EXIT_SUCCESS);
+ done = 1;
+ if (setcontext (&ctx[0]) != 0)
+ {
+ printf ("%s: setcontext: %m\n", __FUNCTION__);
+ exit (EXIT_FAILURE);
+ }
+}
+
+static int
+do_test (void)
+{
+ char st1[32768];
+
+ puts ("making contexts");
+ if (getcontext (&ctx[0]) != 0)
+ {
+ printf ("%s: getcontext: %m\n", __FUNCTION__);
+ exit (EXIT_FAILURE);
+ }
+ if (getcontext (&ctx[1]) != 0)
+ {
+ printf ("%s: getcontext: %m\n", __FUNCTION__);
+ exit (EXIT_FAILURE);
+ }
+ ctx[1].uc_stack.ss_sp = st1;
+ ctx[1].uc_stack.ss_size = sizeof st1;
+ ctx[1].uc_link = &ctx[0];
+ makecontext (&ctx[1], (void (*) (void)) f3, 0);
+ f1 ();
+ puts ("FAIL: returned from f1 ()");
+ exit (EXIT_FAILURE);
+}
+
+#include <support/test-driver.c>