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1 /* -*- mode: C++; c-basic-offset: 4; tab-width: 4 -*-
2 *
3 * Copyright (c) 2009-2010 Apple Inc. All rights reserved.
4 *
5 * @APPLE_LICENSE_HEADER_START@
6 *
7 * This file contains Original Code and/or Modifications of Original Code
8 * as defined in and that are subject to the Apple Public Source License
9 * Version 2.0 (the 'License'). You may not use this file except in
10 * compliance with the License. Please obtain a copy of the License at
11 * http://www.opensource.apple.com/apsl/ and read it before using this
12 * file.
13 *
14 * The Original Code and all software distributed under the License are
15 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
19 * Please see the License for the specific language governing rights and
20 * limitations under the License.
21 *
22 * @APPLE_LICENSE_HEADER_END@
23 */
24
25 #ifndef __LTO_FILE_H__
26 #define __LTO_FILE_H__
27
28 #include "ld.hpp"
29
30 namespace lto {
31
32 extern const char* version();
33
34 extern bool libLTOisLoaded();
35
36 extern const char* archName(const uint8_t* fileContent, uint64_t fileLength);
37
38 extern bool isObjectFile(const uint8_t* fileContent, uint64_t fileLength, cpu_type_t architecture, cpu_subtype_t subarch);
39
40 extern bool hasObjCCategory(const uint8_t* fileContent, uint64_t fileLength);
41
42 extern ld::relocatable::File* parse(const uint8_t* fileContent, uint64_t fileLength,
43 const char* path, time_t modTime, ld::File::Ordinal ordinal,
44 cpu_type_t architecture, cpu_subtype_t subarch, bool logAllFiles,
45 bool verboseOptimizationHints);
46
47 struct OptimizeOptions {
48 const char* outputFilePath;
49 const char* tmpObjectFilePath;
50 const char* ltoCachePath;
51 int ltoPruneInterval;
52 int ltoPruneAfter;
53 unsigned ltoMaxCacheSize;
54 bool preserveAllGlobals;
55 bool verbose;
56 bool saveTemps;
57 bool ltoCodegenOnly;
58 bool pie;
59 bool mainExecutable;
60 bool staticExecutable;
61 bool preload;
62 bool relocatable;
63 bool allowTextRelocs;
64 bool linkerDeadStripping;
65 bool needsUnwindInfoSection;
66 bool keepDwarfUnwind;
67 bool verboseOptimizationHints;
68 bool armUsesZeroCostExceptions;
69 bool simulator;
70 bool ignoreMismatchPlatform;
71 bool bitcodeBundle;
72 uint8_t maxDefaultCommonAlignment;
73 cpu_type_t arch;
74 const char* mcpu;
75 Options::Platform platform;
76 uint32_t minOSVersion;
77 const std::vector<const char*>* llvmOptions;
78 const std::vector<const char*>* initialUndefines;
79 };
80
81 extern bool optimize( const std::vector<const ld::Atom*>& allAtoms,
82 ld::Internal& state,
83 const OptimizeOptions& options,
84 ld::File::AtomHandler& handler,
85 std::vector<const ld::Atom*>& newAtoms,
86 std::vector<const char*>& additionalUndefines);
87
88 } // namespace lto
89
90
91 #endif // __LTO_FILE_H__
92
93