upload android base code part3

2018-08-08 16:48:17 +08:00 · 2018-08-08 16:48:17 +08:00 · b9e30e05b1
commit b9e30e05b1
parent 71b83c22f1
15122 changed files with 2089659 additions and 0 deletions
--- a/android/bionic/libc/include/poll.h
+++ b/android/bionic/libc/include/poll.h
@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _POLL_H_
+#define _POLL_H_
+
+#include <sys/cdefs.h>
+#include <linux/poll.h>
+#include <signal.h> /* For sigset_t. */
+#include <time.h> /* For timespec. */
+
+__BEGIN_DECLS
+
+typedef unsigned int nfds_t;
+
+int poll(struct pollfd*, nfds_t, int) __overloadable __RENAME_CLANG(poll);
+int ppoll(struct pollfd*, nfds_t, const struct timespec*, const sigset_t*)
+        __overloadable __RENAME_CLANG(ppoll) __INTRODUCED_IN(21);
+
+int __poll_chk(struct pollfd*, nfds_t, int, size_t) __INTRODUCED_IN(23);
+int __ppoll_chk(struct pollfd*, nfds_t, const struct timespec*, const sigset_t*, size_t)
+  __INTRODUCED_IN(23);
+
+#if defined(__BIONIC_FORTIFY)
+#if __ANDROID_API__ >= __ANDROID_API_M__
+#if defined(__clang__)
+__BIONIC_ERROR_FUNCTION_VISIBILITY
+int poll(struct pollfd* fds, nfds_t fd_count, int timeout) __overloadable
+        __enable_if(__bos(fds) != __BIONIC_FORTIFY_UNKNOWN_SIZE &&
+                    __bos(fds) < sizeof(*fds) * fd_count,
+                    "selected when there aren't fd_count fds")
+        __errorattr("too many fds specified");
+
+__BIONIC_FORTIFY_INLINE
+int poll(struct pollfd* const fds __pass_object_size, nfds_t fd_count,
+        int timeout) __overloadable {
+  size_t bos_fds = __bos(fds);
+
+  if (bos_fds == __BIONIC_FORTIFY_UNKNOWN_SIZE) {
+      return __call_bypassing_fortify(poll)(fds, fd_count, timeout);
+  }
+
+  return __poll_chk(fds, fd_count, timeout, bos_fds);
+}
+
+__BIONIC_ERROR_FUNCTION_VISIBILITY
+int ppoll(struct pollfd* fds, nfds_t fd_count, const struct timespec* timeout,
+          const sigset_t* mask)  __overloadable
+        __enable_if(__bos(fds) != __BIONIC_FORTIFY_UNKNOWN_SIZE &&
+                    __bos(fds) < sizeof(*fds) * fd_count,
+                    "selected when there aren't fd_count fds")
+        __errorattr("too many fds specified");
+
+__BIONIC_FORTIFY_INLINE
+int ppoll(struct pollfd* const fds __pass_object_size, nfds_t fd_count,
+          const struct timespec* timeout, const sigset_t* mask) __overloadable {
+  size_t bos_fds = __bos(fds);
+
+  if (bos_fds == __BIONIC_FORTIFY_UNKNOWN_SIZE) {
+      return __call_bypassing_fortify(ppoll)(fds, fd_count, timeout, mask);
+  }
+
+  return __ppoll_chk(fds, fd_count, timeout, mask, bos_fds);
+}
+#else /* defined(__clang__) */
+int __poll_real(struct pollfd*, nfds_t, int) __RENAME(poll);
+__errordecl(__poll_too_small_error, "poll: pollfd array smaller than fd count");
+
+int __ppoll_real(struct pollfd*, nfds_t, const struct timespec*, const sigset_t*) __RENAME(ppoll)
+  __INTRODUCED_IN(21);
+__errordecl(__ppoll_too_small_error, "ppoll: pollfd array smaller than fd count");
+
+__BIONIC_FORTIFY_INLINE
+int poll(struct pollfd* fds, nfds_t fd_count, int timeout) {
+  if (__bos(fds) != __BIONIC_FORTIFY_UNKNOWN_SIZE) {
+    if (!__builtin_constant_p(fd_count)) {
+      return __poll_chk(fds, fd_count, timeout, __bos(fds));
+    } else if (__bos(fds) / sizeof(*fds) < fd_count) {
+      __poll_too_small_error();
+    }
+  }
+  return __poll_real(fds, fd_count, timeout);
+}
+
+__BIONIC_FORTIFY_INLINE
+int ppoll(struct pollfd* fds, nfds_t fd_count, const struct timespec* timeout,
+          const sigset_t* mask) {
+  if (__bos(fds) != __BIONIC_FORTIFY_UNKNOWN_SIZE) {
+    if (!__builtin_constant_p(fd_count)) {
+      return __ppoll_chk(fds, fd_count, timeout, mask, __bos(fds));
+    } else if (__bos(fds) / sizeof(*fds) < fd_count) {
+      __ppoll_too_small_error();
+    }
+  }
+  return __ppoll_real(fds, fd_count, timeout, mask);
+}
+
+#endif /* defined(__clang__) */
+#endif /* __ANDROID_API__ >= __ANDROID_API_M__ */
+#endif /* defined(__BIONIC_FORTIFY) */
+
+__END_DECLS
+
+#endif /* _POLL_H_ */