zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/build/uClibc/libpthread/nptl/pthread_getattr_np.c b/ap/build/uClibc/libpthread/nptl/pthread_getattr_np.c
new file mode 100644
index 0000000..86a4385
--- /dev/null
+++ b/ap/build/uClibc/libpthread/nptl/pthread_getattr_np.c
@@ -0,0 +1,179 @@
+/* Copyright (C) 2002, 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <assert.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdio_ext.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/resource.h>
+#include "pthreadP.h"
+#include <lowlevellock.h>
+#include <ldsodefs.h>
+
+
+int
+pthread_getattr_np (
+ pthread_t thread_id,
+ pthread_attr_t *attr)
+{
+ struct pthread *thread = (struct pthread *) thread_id;
+ struct pthread_attr *iattr = (struct pthread_attr *) attr;
+ int ret = 0;
+
+ lll_lock (thread->lock, LLL_PRIVATE);
+
+ /* The thread library is responsible for keeping the values in the
+ thread desriptor up-to-date in case the user changes them. */
+ memcpy (&iattr->schedparam, &thread->schedparam,
+ sizeof (struct sched_param));
+ iattr->schedpolicy = thread->schedpolicy;
+
+ /* Clear the flags work. */
+ iattr->flags = thread->flags;
+
+ /* The thread might be detached by now. */
+ if (IS_DETACHED (thread))
+ iattr->flags |= ATTR_FLAG_DETACHSTATE;
+
+ /* This is the guardsize after adjusting it. */
+ iattr->guardsize = thread->reported_guardsize;
+
+ /* The sizes are subject to alignment. */
+ if (__builtin_expect (thread->stackblock != NULL, 1))
+ {
+ iattr->stacksize = thread->stackblock_size;
+ iattr->stackaddr = (char *) thread->stackblock + iattr->stacksize;
+ }
+ else
+ {
+ /* No stack information available. This must be for the initial
+ thread. Get the info in some magical way. */
+ assert (abs (thread->pid) == thread->tid);
+
+ /* Stack size limit. */
+ struct rlimit rl;
+
+ /* The safest way to get the top of the stack is to read
+ /proc/self/maps and locate the line into which
+ __libc_stack_end falls. */
+ FILE *fp = fopen ("/proc/self/maps", "rc");
+ if (fp == NULL)
+ ret = errno;
+ /* We need the limit of the stack in any case. */
+ else
+ {
+ if (getrlimit (RLIMIT_STACK, &rl) != 0)
+ ret = errno;
+ else
+ {
+ /* We need no locking. */
+ __fsetlocking (fp, FSETLOCKING_BYCALLER);
+
+ /* Until we found an entry (which should always be the case)
+ mark the result as a failure. */
+ ret = ENOENT;
+
+ char *line = NULL;
+ size_t linelen = 0;
+ uintptr_t last_to = 0;
+
+ while (! feof_unlocked (fp))
+ {
+ if (getdelim (&line, &linelen, '\n', fp) <= 0)
+ break;
+
+ uintptr_t from;
+ uintptr_t to;
+ if (sscanf (line, "%" SCNxPTR "-%" SCNxPTR, &from, &to) != 2)
+ continue;
+ if (from <= (uintptr_t) __libc_stack_end
+ && (uintptr_t) __libc_stack_end < to)
+ {
+ /* Found the entry. Now we have the info we need. */
+ iattr->stacksize = rl.rlim_cur;
+ iattr->stackaddr = (void *) to;
+
+ /* The limit might be too high. */
+ if ((size_t) iattr->stacksize
+ > (size_t) iattr->stackaddr - last_to)
+ iattr->stacksize = (size_t) iattr->stackaddr - last_to;
+
+ /* We succeed and no need to look further. */
+ ret = 0;
+ break;
+ }
+ last_to = to;
+ }
+
+ free (line);
+ }
+
+ fclose (fp);
+ }
+ }
+
+ iattr->flags |= ATTR_FLAG_STACKADDR;
+
+ if (ret == 0)
+ {
+ size_t size = 16;
+ cpu_set_t *cpuset = NULL;
+
+ do
+ {
+ size <<= 1;
+
+ void *newp = realloc (cpuset, size);
+ if (newp == NULL)
+ {
+ ret = ENOMEM;
+ break;
+ }
+ cpuset = (cpu_set_t *) newp;
+
+ ret = __pthread_getaffinity_np (thread_id, size, cpuset);
+ }
+ /* Pick some ridiculous upper limit. Is 8 million CPUs enough? */
+ while (ret == EINVAL && size < 1024 * 1024);
+
+ if (ret == 0)
+ {
+ iattr->cpuset = cpuset;
+ iattr->cpusetsize = size;
+ }
+ else
+ {
+ free (cpuset);
+ if (ret == ENOSYS)
+ {
+ /* There is no such functionality. */
+ ret = 0;
+ iattr->cpuset = NULL;
+ iattr->cpusetsize = 0;
+ }
+ }
+ }
+
+ lll_unlock (thread->lock, LLL_PRIVATE);
+
+ return ret;
+}