Update Crashpad to b47bf6c250c6b825dee1c5fbad9152c2c962e828

third_party/crashpad/crashpad/test/multiprocess_exec_posix.cc

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
 #include "test/multiprocess_exec.h"
 
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
 
 #include "base/posix/eintr_wrapper.h"
 #include "gtest/gtest.h"
 #include "test/errors.h"
 #include "util/misc/scoped_forbid_return.h"
 #include "util/posix/close_multiple.h"
 
+#if defined(OS_LINUX)
+#include <stdio_ext.h>
+#endif
+
 namespace crashpad {
 namespace test {
 
 MultiprocessExec::MultiprocessExec()
     : Multiprocess(),
       command_(),
       arguments_(),
       argv_() {
 }
 
@@ skipping 33 matching lines @@
   static_assert(STDIN_FILENO == 0, "stdin must be fd 0");
   static_assert(STDOUT_FILENO == 1, "stdout must be fd 1");
   static_assert(STDERR_FILENO == 2, "stderr must be fd 2");
 
   // Move the read pipe to stdin.
   FileHandle read_handle = ReadPipeHandle();
   ASSERT_NE(read_handle, STDIN_FILENO);
   ASSERT_NE(read_handle, STDOUT_FILENO);
   ASSERT_EQ(STDIN_FILENO, fileno(stdin));
 
-  int rv = fpurge(stdin);
+  int rv;
+
+#if defined(OS_LINUX)
+  __fpurge(stdin);
+#else
+  rv = fpurge(stdin);
   ASSERT_EQ(0, rv) << ErrnoMessage("fpurge");
+#endif
 
   rv = HANDLE_EINTR(dup2(read_handle, STDIN_FILENO));
   ASSERT_EQ(STDIN_FILENO, rv) << ErrnoMessage("dup2");
 
   // Move the write pipe to stdout.
   FileHandle write_handle = WritePipeHandle();
   ASSERT_NE(write_handle, STDIN_FILENO);
   ASSERT_NE(write_handle, STDOUT_FILENO);
   ASSERT_EQ(STDOUT_FILENO, fileno(stdout));
 
@@ skipping 39 matching lines @@
   IGNORE_EINTR(close(STDOUT_FILENO));
   HANDLE_EINTR(dup2(dup_orig_stdout_fd, STDOUT_FILENO));
   IGNORE_EINTR(close(dup_orig_stdout_fd));
 
   forbid_return.Disarm();
   FAIL() << ErrnoMessage("execv") << ": " << argv_[0];
 }
 
 }  // namespace test
 }  // namespace crashpad