tools/gn/ninja_binary_target_writer.h

   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_NINJA_BINARY_TARGET_WRITER_H_
   6 #define TOOLS_GN_NINJA_BINARY_TARGET_WRITER_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "tools/gn/ninja_target_writer.h"
  10 #include "tools/gn/toolchain.h"
  11
  12 // Writes a .ninja file for a binary target type (an executable, a shared
  13 // library, or a static library).
  14 class NinjaBinaryTargetWriter : public NinjaTargetWriter {
  15  public:
  16   NinjaBinaryTargetWriter(const Target* target,
  17                           const Toolchain* toolchain,
  18                           std::ostream& out);
  19   virtual ~NinjaBinaryTargetWriter();
  20
  21   virtual void Run() OVERRIDE;
  22
  23  private:
  24   typedef std::set<OutputFile> OutputFileSet;
  25
  26   void WriteCompilerVars();
  27   void WriteSources(std::vector<OutputFile>* object_files);
  28   void WriteLinkerStuff(const std::vector<OutputFile>& object_files);
  29   void WriteLinkerFlags(const Toolchain::Tool& tool,
  30                         const OutputFile& windows_manifest);
  31   void WriteLibs(const Toolchain::Tool& tool);
  32
  33   // Writes the build line for linking the target. Includes newline.
  34   void WriteLinkCommand(const OutputFile& external_output_file,
  35                         const OutputFile& internal_output_file,
  36                         const std::vector<OutputFile>& object_files);
  37
  38   // Writes the stamp line for a source set. These are not linked.
  39   void WriteSourceSetStamp(const std::vector<OutputFile>& object_files);
  40
  41   // Gets all target dependencies and classifies them, as well as accumulates
  42   // object files from source sets we need to link.
  43   void GetDeps(std::set<OutputFile>* extra_object_files,
  44                std::vector<const Target*>* linkable_deps,
  45                std::vector<const Target*>* non_linkable_deps) const;
  46
  47   // Classifies the dependency as linkable or nonlinkable with the current
  48   // target, adding it to the appropriate vector. If the dependency is a source
  49   // set we should link in, the source set's object files will be appended to
  50   // |extra_object_files|.
  51   void ClassifyDependency(const Target* dep,
  52                           std::set<OutputFile>* extra_object_files,
  53                           std::vector<const Target*>* linkable_deps,
  54                           std::vector<const Target*>* non_linkable_deps) const;
  55
  56   // Writes the implicit dependencies for the link or stamp line. This is
  57   // the "||" and everything following it on the ninja line.
  58   //
  59   // The implicit dependencies are the non-linkable deps passed in as an
  60   // argument, plus the data file depdencies in the target.
  61   void WriteImplicitDependencies(
  62       const std::vector<const Target*>& non_linkable_deps);
  63
  64   Toolchain::ToolType tool_type_;
  65
  66   DISALLOW_COPY_AND_ASSIGN(NinjaBinaryTargetWriter);
  67 };
  68
  69 #endif  // TOOLS_GN_NINJA_BINARY_TARGET_WRITER_H_
  70