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authorRoland McGrath <roland@hack.frob.com>2014-11-18 11:03:35 -0800
committerRoland McGrath <roland@hack.frob.com>2014-11-18 11:03:35 -0800
commitd71035bd9a3a1dc5077ab8d978398f2f960d3555 (patch)
tree419474d5a5566ce04e5e7548c4fc0d35ac8d40a5 /nptl
parent6540b9916bb2532a32141583ab6f3795b7649b7b (diff)
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NPTL: Add stub createthread.c
Diffstat (limited to 'nptl')
-rw-r--r--nptl/createthread.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/nptl/createthread.c b/nptl/createthread.c
new file mode 100644
index 0000000000..330b8160d8
--- /dev/null
+++ b/nptl/createthread.c
@@ -0,0 +1,47 @@
+/* Low-level thread creation for NPTL. Stub version.
+ Copyright (C) 2014 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/>. */
+
+/* See the comments in pthread_create.c for the requirements for these
+ two macros and the create_thread function. */
+
+#define START_THREAD_DEFN \
+ static void __attribute__ ((noreturn)) start_thread (void)
+#define START_THREAD_SELF THREAD_SELF
+
+static int
+create_thread (struct pthread *pd, const struct pthread_attr *attr,
+ bool stopped_start, STACK_VARIABLES_PARMS, bool *thread_ran)
+{
+ /* If the implementation needs to do some tweaks to the thread after
+ it has been created at the OS level, it can set STOPPED_START here. */
+
+ pd->stopped_start = stopped_start;
+ if (__glibc_unlikely (stopped_start))
+ /* We make sure the thread does not run far by forcing it to get a
+ lock. We lock it here too so that the new thread cannot continue
+ until we tell it to. */
+ lll_lock (pd->lock, LLL_PRIVATE);
+
+ return ENOSYS;
+
+ /* It's started now, so if we fail below, we'll have to cancel it
+ and let it clean itself up. */
+ *thread_ran = true;
+
+ return 0;
+}