security/sandbox/chromium/base/port.h

Wed, 31 Dec 2014 07:16:47 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 07:16:47 +0100
branch
TOR_BUG_9701
changeset 3
141e0f1194b1
permissions
-rw-r--r--

Revert simplistic fix pending revisit of Mozilla integration attempt.

michael@0 1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
michael@0 2 // Use of this source code is governed by a BSD-style license that can be
michael@0 3 // found in the LICENSE file.
michael@0 4
michael@0 5 #ifndef BASE_PORT_H_
michael@0 6 #define BASE_PORT_H_
michael@0 7
michael@0 8 #include <stdarg.h>
michael@0 9 #include "build/build_config.h"
michael@0 10
michael@0 11 #ifdef COMPILER_MSVC
michael@0 12 #define GG_LONGLONG(x) x##I64
michael@0 13 #define GG_ULONGLONG(x) x##UI64
michael@0 14 #else
michael@0 15 #define GG_LONGLONG(x) x##LL
michael@0 16 #define GG_ULONGLONG(x) x##ULL
michael@0 17 #endif
michael@0 18
michael@0 19 // Per C99 7.8.14, define __STDC_CONSTANT_MACROS before including <stdint.h>
michael@0 20 // to get the INTn_C and UINTn_C macros for integer constants. It's difficult
michael@0 21 // to guarantee any specific ordering of header includes, so it's difficult to
michael@0 22 // guarantee that the INTn_C macros can be defined by including <stdint.h> at
michael@0 23 // any specific point. Provide GG_INTn_C macros instead.
michael@0 24
michael@0 25 #define GG_INT8_C(x) (x)
michael@0 26 #define GG_INT16_C(x) (x)
michael@0 27 #define GG_INT32_C(x) (x)
michael@0 28 #define GG_INT64_C(x) GG_LONGLONG(x)
michael@0 29
michael@0 30 #define GG_UINT8_C(x) (x ## U)
michael@0 31 #define GG_UINT16_C(x) (x ## U)
michael@0 32 #define GG_UINT32_C(x) (x ## U)
michael@0 33 #define GG_UINT64_C(x) GG_ULONGLONG(x)
michael@0 34
michael@0 35 // It's possible for functions that use a va_list, such as StringPrintf, to
michael@0 36 // invalidate the data in it upon use. The fix is to make a copy of the
michael@0 37 // structure before using it and use that copy instead. va_copy is provided
michael@0 38 // for this purpose. MSVC does not provide va_copy, so define an
michael@0 39 // implementation here. It is not guaranteed that assignment is a copy, so the
michael@0 40 // StringUtil.VariableArgsFunc unit test tests this capability.
michael@0 41 #if defined(COMPILER_GCC)
michael@0 42 #define GG_VA_COPY(a, b) (va_copy(a, b))
michael@0 43 #elif defined(COMPILER_MSVC)
michael@0 44 #define GG_VA_COPY(a, b) (a = b)
michael@0 45 #endif
michael@0 46
michael@0 47 // Define an OS-neutral wrapper for shared library entry points
michael@0 48 #if defined(OS_WIN)
michael@0 49 #define API_CALL __stdcall
michael@0 50 #else
michael@0 51 #define API_CALL
michael@0 52 #endif
michael@0 53
michael@0 54 #endif // BASE_PORT_H_

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