htl: Enable more tests

* htl/Makefile: Remove rules adding libpthread.so and libpthread.a to link
lines.
* nptl/Makefile: Move rules adding libpthread.so and libpthread.a to
link lines to...
* sysdeps/pthread/Makefile: ... here.

* nptl/eintr.c, tst-align.c tst-align3.c tst-atfork1.c tst-backtrace1.c
tst-bad-schedattr.c tst-cancel-self-canceltype.c tst-cancel-self-cleanup.c
tst-cancel-self-testcancel.c tst-cancel1.c tst-cancel10.c tst-cancel12.c
tst-cancel14.c tst-cancel15.c tst-cancel18.c tst-cancel19.c tst-cancel2.c
tst-cancel22.c tst-cancel23.c tst-cancel26.c tst-cancel27.c tst-cancel28.c
tst-cancel3.c tst-cancel8.c tst-cancelx1.c tst-cancelx10.c tst-cancelx12.c
tst-cancelx14.c tst-cancelx15.c tst-cancelx18.c tst-cancelx2.c tst-cancelx3.c
tst-cancelx8.c tst-cleanup0.c tst-cleanup0.expect tst-cleanup1.c tst-cleanup2.c
tst-cleanup3.c tst-cleanupx0.c tst-cleanupx0.expect tst-cleanupx1.c
tst-cleanupx2.c tst-cleanupx3.c tst-clock1.c tst-create-detached.c tst-detach1.c
tst-eintr2.c tst-eintr3.c tst-eintr4.c tst-eintr5.c tst-exec1.c tst-exec2.c
tst-exec3.c tst-exit1.c tst-exit2.c tst-exit3.c tst-flock1.c tst-fork1.c
tst-fork2.c tst-fork3.c tst-fork4.c tst-getpid3.c tst-kill1.c tst-kill2.c
tst-kill3.c tst-kill4.c tst-kill5.c tst-kill6.c tst-locale1.c tst-locale2.c
tst-memstream.c tst-popen1.c tst-raise1.c tst-sem5.c tst-setuid3.c tst-signal4.c
tst-signal5.c tst-signal6.c tst-signal8.c tst-stack1.c tst-stdio1.c tst-stdio2.c
tst-sysconf.c tst-tls1.c tst-tls2.c tst-tsd1.c tst-tsd2.c tst-tsd5.c tst-tsd6.c
tst-umask1.c tst-unload.c tst-unwind-thread.c tst-vfork1.c tst-vfork1x.c
tst-vfork2.c tst-vfork2x.c: Move tests to...
* sysdeps/pthread: ... here.
Rename
tst-popen1.c -> tst-pt-popen1.c
tst-align.c -> tst-pt-align.c
tst-align3.c -> tst-pt-align3.c
tst-sysconf.c -> tst-pt-sysconf.c
tst-tls1.c -> tst-pt-tls1.c
tst-tls2.c -> tst-pt-tls2.c
tst-vfork1.c -> tst-pt-vfork1.c
tst-vfork2.c -> tst-pt-vfork2.c
to avoid conflicting with libio/tst-popen1.c, elf/tst-align.c,
posix/tst-sysconf.c, elf/tst-tls1.c, elf/tst-tls2.c, posix/tst-vfork1.c,
posix/tst-vfork2.c.

* nptl/Makefile: Move corresponding tests references and special rules to...
* sysdeps/pthread/Makefile: ... here.

* sysdeps/pthread/tst-stack1.c (do_test): Do not clamp stack size to
PTHREAD_STACK_MIN if not defined.

Tested on linux-x86_64 and hurd-i386

1 files changed, 101 insertions, 0 deletions

diff --git a/sysdeps/pthread/tst-memstream.c b/sysdeps/pthread/tst-memstream.c
new file mode 100644
index 0000000000..4e8d86cb8b
--- /dev/null
+++ b/sysdeps/pthread/tst-memstream.c
@@ -0,0 +1,101 @@
+/* Test for open_memstream locking.
+   Copyright (C) 2017-2020 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
+   <https://www.gnu.org/licenses/>.  */
+
+/* This test checks if concurrent writes to a FILE created with
+   open_memstream are correctly interleaved without loss or corruption
+   of data.  Large number of concurrent fputc operations are used
+   and in the end the bytes written to the memstream buffer are
+   counted to see if they all got recorded.
+
+   This is a regression test to see if the single threaded stdio
+   optimization broke multi-threaded open_memstream usage.  */
+
+#include <pthread.h>
+#include <stdio.h>
+#include <support/check.h>
+#include <support/xthread.h>
+
+enum
+{
+  thread_count = 2,
+  byte_count = 1000000,
+};
+
+struct closure
+{
+  FILE *fp;
+  char b;
+};
+
+static void *
+thread_func (void *closure)
+{
+  struct closure *args = closure;
+
+  for (int i = 0; i < byte_count; ++i)
+    fputc (args->b, args->fp);
+
+  return NULL;
+}
+
+int
+do_test (void)
+{
+  char *buffer = NULL;
+  size_t buffer_length = 0;
+  FILE *fp = open_memstream (&buffer, &buffer_length);
+  if (fp == NULL)
+    FAIL_RET ("open_memstream: %m");
+
+  pthread_t threads[thread_count];
+  struct closure args[thread_count];
+
+  for (int i = 0; i < thread_count; ++i)
+    {
+      args[i].fp = fp;
+      args[i].b = 'A' + i;
+      threads[i] = xpthread_create (NULL, thread_func, args + i);
+    }
+
+  for (int i = 0; i < thread_count; ++i)
+    xpthread_join (threads[i]);
+
+  fclose (fp);
+
+  if (buffer_length != thread_count * byte_count)
+    FAIL_RET ("unexpected number of written bytes: %zu (should be %d)",
+	      buffer_length, thread_count * byte_count);
+
+  /* Verify that each thread written its unique character byte_count times.  */
+  size_t counts[thread_count] = { 0, };
+  for (size_t i = 0; i < buffer_length; ++i)
+    {
+      if (buffer[i] < 'A' || buffer[i] >= 'A' + thread_count)
+	FAIL_RET ("written byte at %zu out of range: %d", i, buffer[i] & 0xFF);
+      ++counts[buffer[i] - 'A'];
+    }
+  for (int i = 0; i < thread_count; ++i)
+    if (counts[i] != byte_count)
+      FAIL_RET ("incorrect write count for thread %d: %zu (should be %d)", i,
+		counts[i], byte_count);
+
+  return 0;
+}
+
+#define TIMEOUT 100
+#include <support/test-driver.c>