Index: ppapi/tests/all_c_sizes.h |
=================================================================== |
--- ppapi/tests/all_c_sizes.h (revision 0) |
+++ ppapi/tests/all_c_sizes.h (revision 0) |
@@ -0,0 +1,42 @@ |
+/* Copyright (c) 2010 The Chromium Authors. All rights reserved. |
+ * Use of this source code is governed by a BSD-style license that can be |
+ * found in the LICENSE file. |
+ * |
+ * This header ensures (at compile time) that each type has the expected size. |
+ * The purpose is to ensure that the ABI of PPAPI is known, consistent, and |
+ * stable. If the size of one of these types changes, then it is necessary to |
+ * change the version of any interfaces that rely on the changed type(s). |
+ * |
+ * Note that the ABI only consists of the headers under ppapi/c. But they may |
+ * be compiled by either a C or C++ compiler, so we want to make sure they are |
+ * consistent regardless of whether a C or C++ compiler is used. See |
+ * test_struct_sizes_c.c and test_struct_sizes_cpp.cc for more information. |
+ */ |
+ |
+#ifndef PPAPI_TESTS_ALL_C_SIZES_H_ |
+#define PPAPI_TESTS_ALL_C_SIZES_H_ |
+ |
+#include "ppapi/tests/all_c_includes.h" |
+ |
+#if !defined(__native_client__) && (defined(_M_X64) || defined(__x86_64__)) |
+/* These sizes are for 64-bit compilation on Windows, Mac, and Linux. Native |
+ client follows ILP32 even if -m64 is used. This means pointers are always |
+ 4 bytes in native client, and it matches Win32 (see below). |
+ |
+ Each of these structs uses at least one type which differs in size or |
+ alignment between 64-bit and 32-bit (e.g. pointers, int64_t, uint64_t, |
+ or double), and they are not padded to keep their size consistent. */ |
+#include "ppapi/tests/all_sizes_64.h" |
+#else |
+/* This section is for compilation on 32-bit targets plus native client (in both |
+ 32-bit and 64-bit mode, since native client always conforms to ILP32). |
+ |
+ These types all contain pointers and have no types that are 8-byte aligned on |
+ Windows/NaCl. The pointers cause the sizes to differ between 32-bit and |
+ 64-bit, but the lack of 8-byte-aligned types allows them to be consistent |
+ between Windows 32-bit, Native Client, and Mac/Linux 32-bit. */ |
+#include "ppapi/tests/all_sizes_32.h" |
+#endif |
+ |
+#endif // PPAPI_TESTS_ALL_C_SIZES_H_ |
+ |
Property changes on: ppapi/tests/all_c_sizes.h |
___________________________________________________________________ |
Added: svn:eol-style |
+ LF |