config/gcc-stl-wrapper.template.h@97036ab72558 (annotated)
config/gcc-stl-wrapper.template.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- |
| michael@0 | 2 | * vim: sw=2 ts=8 et : |
| michael@0 | 3 | */ |
| michael@0 | 4 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 5 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 6 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 7 | |
| michael@0 | 8 | #ifndef mozilla_${HEADER}_h |
| michael@0 | 9 | #define mozilla_${HEADER}_h |
| michael@0 | 10 | |
| michael@0 | 11 | // For some reason, Apple's GCC refuses to honor -fno-exceptions when |
| michael@0 | 12 | // compiling ObjC. |
| michael@0 | 13 | #if __EXCEPTIONS && !(__OBJC__ && __GNUC__ && XP_IOS) |
| michael@0 | 14 | # error "STL code can only be used with -fno-exceptions" |
| michael@0 | 15 | #endif |
| michael@0 | 16 | |
| michael@0 | 17 | // Silence "warning: #include_next is a GCC extension" |
| michael@0 | 18 | #pragma GCC system_header |
| michael@0 | 19 | |
| michael@0 | 20 | #ifdef _WIN32 |
| michael@0 | 21 | // Suppress windef.h min and max macros - they make std::min/max not compile. |
| michael@0 | 22 | #define NOMINMAX 1 |
| michael@0 | 23 | #endif |
| michael@0 | 24 | |
| michael@0 | 25 | // mozalloc.h wants <new>; break the cycle by always explicitly |
| michael@0 | 26 | // including <new> here. NB: this is a tad sneaky. Sez the gcc docs: |
| michael@0 | 27 | // |
| michael@0 | 28 | // `#include_next' does not distinguish between <file> and "file" |
| michael@0 | 29 | // inclusion, nor does it check that the file you specify has the |
| michael@0 | 30 | // same name as the current file. It simply looks for the file |
| michael@0 | 31 | // named, starting with the directory in the search path after the |
| michael@0 | 32 | // one where the current file was found. |
| michael@0 | 33 | #include_next <new> |
| michael@0 | 34 | |
| michael@0 | 35 | // See if we're in code that can use mozalloc. NB: this duplicates |
| michael@0 | 36 | // code in nscore.h because nscore.h pulls in prtypes.h, and chromium |
| michael@0 | 37 | // can't build with that being included before base/basictypes.h. |
| michael@0 | 38 | #if !defined(XPCOM_GLUE) && !defined(NS_NO_XPCOM) && !defined(MOZ_NO_MOZALLOC) |
| michael@0 | 39 | # include "mozilla/mozalloc.h" |
| michael@0 | 40 | #else |
| michael@0 | 41 | # error "STL code can only be used with infallible ::operator new()" |
| michael@0 | 42 | #endif |
| michael@0 | 43 | |
| michael@0 | 44 | #if defined(DEBUG) && !defined(_GLIBCXX_DEBUG) |
| michael@0 | 45 | // Enable checked iterators and other goodies |
| michael@0 | 46 | // |
| michael@0 | 47 | // FIXME/bug 551254: gcc's debug STL implementation requires -frtti. |
| michael@0 | 48 | // Figure out how to resolve this with -fno-rtti. Maybe build with |
| michael@0 | 49 | // -frtti in DEBUG builds? |
| michael@0 | 50 | // |
| michael@0 | 51 | // # define _GLIBCXX_DEBUG 1 |
| michael@0 | 52 | #endif |
| michael@0 | 53 | |
| michael@0 | 54 | #pragma GCC visibility push(default) |
| michael@0 | 55 | #include_next <${HEADER}> |
| michael@0 | 56 | #pragma GCC visibility pop |
| michael@0 | 57 | |
| michael@0 | 58 | // gcc calls a __throw_*() function from bits/functexcept.h when it |
| michael@0 | 59 | // wants to "throw an exception". functexcept exists nominally to |
| michael@0 | 60 | // support -fno-exceptions, but since we'll always use the system |
| michael@0 | 61 | // libstdc++, and it's compiled with exceptions, then in practice |
| michael@0 | 62 | // these __throw_*() functions will always throw exceptions (shades of |
| michael@0 | 63 | // -fshort-wchar). We don't want that and so define our own inlined |
| michael@0 | 64 | // __throw_*(). |
| michael@0 | 65 | #ifndef mozilla_throw_gcc_h |
| michael@0 | 66 | # include "mozilla/throw_gcc.h" |
| michael@0 | 67 | #endif |
| michael@0 | 68 | |
| michael@0 | 69 | #endif // if mozilla_${HEADER}_h |
