From d71035bd9a3a1dc5077ab8d978398f2f960d3555 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Tue, 18 Nov 2014 11:03:35 -0800 Subject: NPTL: Add stub createthread.c --- ChangeLog | 2 ++ nptl/createthread.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 49 insertions(+) create mode 100644 nptl/createthread.c diff --git a/ChangeLog b/ChangeLog index 2f0f305511..37b1459781 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,7 @@ 2014-11-18 Roland McGrath + * nptl/createthread.c: New file. + * nptl/createthread.c: Moved ... * sysdeps/unix/sysv/linux/createthread.c: ... here. 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 + . */ + +/* 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; +} -- cgit 1.4.1