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| 1 // Copyright (c) 2013 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 #ifndef TOOLS_GN_TOOLCHAIN_H_ |
| 6 #define TOOLS_GN_TOOLCHAIN_H_ |
| 7 |
| 8 #include "base/compiler_specific.h" |
| 9 #include "base/strings/string_piece.h" |
| 10 #include "tools/gn/item.h" |
| 11 |
| 12 // Holds information on a specific toolchain. This data is filled in when we |
| 13 // encounter a toolchain definition. |
| 14 // |
| 15 // This class is an Item so it can participate in dependency management. In |
| 16 // particular, when a target uses a toolchain, it should have a dependency on |
| 17 // that toolchain's object so that we can be sure we loaded the toolchain |
| 18 // before generating the build for that target. |
| 19 // |
| 20 // Note on threadsafety: The label of the toolchain never changes so can |
| 21 // safetly be accessed from any thread at any time (we do this when asking for |
| 22 // the toolchain name). But the values in the toolchain do, so these can't |
| 23 // be accessed until this Item is resolved. |
| 24 class Toolchain : public Item { |
| 25 public: |
| 26 enum ToolType { |
| 27 TYPE_NONE = 0, |
| 28 TYPE_CC, |
| 29 TYPE_CXX, |
| 30 TYPE_ASM, |
| 31 TYPE_ALINK, |
| 32 TYPE_SOLINK, |
| 33 TYPE_SOLINK_MODULE, |
| 34 TYPE_LINK, |
| 35 TYPE_STAMP, |
| 36 TYPE_COPY, |
| 37 |
| 38 TYPE_NUMTYPES // Must be last. |
| 39 }; |
| 40 |
| 41 static const char* kToolCc; |
| 42 static const char* kToolCxx; |
| 43 static const char* kToolAsm; |
| 44 static const char* kToolAlink; |
| 45 static const char* kToolSolink; |
| 46 static const char* kToolSolinkModule; |
| 47 static const char* kToolLink; |
| 48 static const char* kToolStamp; |
| 49 static const char* kToolCopy; |
| 50 |
| 51 struct Tool { |
| 52 Tool(); |
| 53 ~Tool(); |
| 54 |
| 55 bool empty() const { |
| 56 return command.empty() && depfile.empty() && deps.empty() && |
| 57 description.empty() && pool.empty() && restat.empty() && |
| 58 rspfile.empty() && rspfile_content.empty(); |
| 59 } |
| 60 |
| 61 std::string command; |
| 62 std::string depfile; |
| 63 std::string deps; |
| 64 std::string description; |
| 65 std::string pool; |
| 66 std::string restat; |
| 67 std::string rspfile; |
| 68 std::string rspfile_content; |
| 69 }; |
| 70 |
| 71 Toolchain(const Label& label); |
| 72 virtual ~Toolchain(); |
| 73 |
| 74 // Item overrides. |
| 75 virtual Toolchain* AsToolchain() OVERRIDE; |
| 76 virtual const Toolchain* AsToolchain() const OVERRIDE; |
| 77 |
| 78 // Returns TYPE_NONE on failure. |
| 79 static ToolType ToolNameToType(const base::StringPiece& str); |
| 80 static std::string ToolTypeToName(ToolType type); |
| 81 |
| 82 const Tool& GetTool(ToolType type) const; |
| 83 void SetTool(ToolType type, const Tool& t); |
| 84 |
| 85 const std::string& environment() const { return environment_; } |
| 86 void set_environment(const std::string& env) { environment_ = env; } |
| 87 |
| 88 private: |
| 89 Tool tools_[TYPE_NUMTYPES]; |
| 90 |
| 91 std::string environment_; |
| 92 }; |
| 93 |
| 94 #endif // TOOLS_GN_TOOLCHAIN_H_ |
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