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1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 // This file declares a raw symbol and should be included only once in a | |
6 // certain binary target. This needs to be run before we raise the sandbox, | |
7 // which means that it can't use mojo. Our runners will dig around in the | |
8 // symbol table and run this before the mojo system is initialized. | |
9 | |
10 #include <stdint.h> | |
11 | |
12 #include <memory> | |
13 | |
14 #include "base/files/file.h" | |
15 #include "base/i18n/icu_util.h" | |
16 #include "base/rand_util.h" | |
17 #include "base/sys_info.h" | |
18 #include "build/build_config.h" | |
19 #include "mojo/public/c/system/types.h" | |
20 | |
21 #if !defined(OS_ANDROID) | |
22 #include "third_party/icu/source/i18n/unicode/timezone.h" | |
23 #endif | |
24 | |
25 extern "C" { | |
26 #if defined(OS_WIN) | |
27 __declspec(dllexport) void __cdecl | |
28 #else | |
29 void __attribute__((visibility("default"))) | |
30 #endif | |
31 InitializeBase(const uint8_t* icu_data) { | |
32 base::RandUint64(); | |
33 base::SysInfo::AmountOfPhysicalMemory(); | |
34 base::SysInfo::NumberOfProcessors(); | |
35 | |
36 #if ICU_UTIL_DATA_IMPL == ICU_UTIL_DATA_FILE | |
37 // Initialize core ICU. We must perform the full initialization before we | |
38 // initialize icu::TimeZone subsystem because otherwise ICU gets in a state | |
39 // where the timezone data is disconnected from the locale data which can | |
40 // cause crashes. | |
41 CHECK(base::i18n::InitializeICUFromRawMemory(icu_data)); | |
42 #endif // ICU_UTIL_DATA_IMPL == ICU_UTIL_DATA_FILE | |
43 | |
44 #if !defined(OS_ANDROID) | |
45 // ICU DateFormat class (used in base/time_format.cc) needs to get the | |
46 // Olson timezone ID by accessing the zoneinfo files on disk. After | |
47 // TimeZone::createDefault is called once here, the timezone ID is | |
48 // cached and there's no more need to access the file system. | |
49 std::unique_ptr<icu::TimeZone> zone(icu::TimeZone::createDefault()); | |
50 #endif | |
51 } | |
52 } | |
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