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Remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21408 91177308-0d34-0410-b5e6-96231b3b80d8
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@@ -1,10 +1,10 @@
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//===- llvm/Linker.h - Module Linker Interface ------------------*- C++ -*-===//
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//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Reid Spencer and is distributed under the
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// This file was developed by Reid Spencer and is distributed under the
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// University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the interface to the module/file/archive linker.
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@@ -22,15 +22,15 @@ namespace llvm {
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class Module;
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/// This class provides the core functionality of linking in LLVM. It retains a
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/// Module object which is the composite of the modules and libraries linked
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/// into it. The composite Module can be retrieved via the getModule() method.
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/// In this case the Linker still retains ownership of the Module. If the
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/// releaseModule() method is used, the ownership of the Module is transferred
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/// Module object which is the composite of the modules and libraries linked
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/// into it. The composite Module can be retrieved via the getModule() method.
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/// In this case the Linker still retains ownership of the Module. If the
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/// releaseModule() method is used, the ownership of the Module is transferred
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/// to the caller and the Linker object is only suitable for destruction.
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/// The Linker can link Modules from memory, bytecode files, or bytecode
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/// archives. It retains a set of search paths in which to find any libraries
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/// presented to it. By default, the linker will generate error and warning
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/// messages to std::cerr but this capability can be turned off with the
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/// The Linker can link Modules from memory, bytecode files, or bytecode
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/// archives. It retains a set of search paths in which to find any libraries
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/// presented to it. By default, the linker will generate error and warning
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/// messages to std::cerr but this capability can be turned off with the
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/// QuietWarnings and QuietErrors flags. It can also be instructed to verbosely
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/// print out the linking actions it is taking with the Verbose flag.
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/// @brief The LLVM Linker.
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@@ -41,14 +41,14 @@ class Linker {
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public:
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/// This type is used to pass the linkage items (libraries and files) to
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/// the LinkItems function. It is composed of string/bool pairs. The string
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/// provides the name of the file or library (as with the -l option). The
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/// bool should be true for libraries and false for files, signifying
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/// provides the name of the file or library (as with the -l option). The
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/// bool should be true for libraries and false for files, signifying
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/// "isLibrary".
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/// @brief A list of linkage items
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typedef std::vector<std::pair<std::string,bool> > ItemList;
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/// This enumeration is used to control various optional features of the
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/// linker.
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/// linker.
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enum ControlFlags {
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Verbose = 1, ///< Print to std::cerr what steps the linker is taking
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QuietWarnings = 2, ///< Don't print errors and warnings to std::cerr.
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@@ -78,33 +78,33 @@ class Linker {
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/// @{
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public:
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/// This method gets the composite module into which linking is being
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/// done. The Composite module starts out empty and accumulates modules
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/// done. The Composite module starts out empty and accumulates modules
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/// linked into it via the various LinkIn* methods. This method does not
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/// release the Module to the caller. The Linker retains ownership and will
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/// destruct the Module when the Linker is destructed.
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/// destruct the Module when the Linker is destructed.
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/// @see releaseModule
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/// @brief Get the linked/composite module.
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Module* getModule() const { return Composite; }
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/// This method releases the composite Module into which linking is being
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/// done. Ownership of the composite Module is transferred to the caller who
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/// must arrange for its destruct. After this method is called, the Linker
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/// terminates the linking session for the returned Module. It will no
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/// longer utilize the returned Module but instead resets itself for
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/// subsequent linking as if the constructor had been called. The Linker's
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/// LibPaths and flags to be reset, and memory will be released.
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/// @brief Release the linked/composite module.
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/// must arrange for its destruct. After this method is called, the Linker
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/// terminates the linking session for the returned Module. It will no
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/// longer utilize the returned Module but instead resets itself for
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/// subsequent linking as if the constructor had been called. The Linker's
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/// LibPaths and flags to be reset, and memory will be released.
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/// @brief Release the linked/composite module.
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Module* releaseModule();
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/// This method gets the list of libraries that form the path that the
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/// Linker will search when it is presented with a library name.
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/// Linker will search when it is presented with a library name.
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/// @brief Get the Linkers library path
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const std::vector<sys::Path>& getLibPaths() const { return LibPaths; }
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/// This method returns an error string suitable for printing to the user.
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/// The return value will be empty unless an error occurred in one of the
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/// LinkIn* methods. In those cases, the LinkIn* methods will have returned
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/// true, indicating an error occurred. At most one error is retained so
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/// true, indicating an error occurred. At most one error is retained so
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/// this function always returns the last error that occurred. Note that if
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/// the Quiet control flag is not set, the error string will have already
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/// been printed to std::cerr.
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@@ -124,7 +124,7 @@ class Linker {
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void addPath(const sys::Path& path);
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/// Add a set of paths to the list of paths that the linker will search. The
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/// Linker accumulates the set of libraries added. The \p paths will be
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/// Linker accumulates the set of libraries added. The \p paths will be
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/// added to the end of the Linker's list. Order will be retained.
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/// @brief Add a set of paths.
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void addPaths(const std::vector<std::string>& paths);
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@@ -140,14 +140,14 @@ class Linker {
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/// @brief Set control flags.
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void setFlags(unsigned flags) { Flags = flags; }
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/// This method is the main interface to the linker. It can be used to
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/// This method is the main interface to the linker. It can be used to
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/// link a set of linkage items into a module. A linkage item is either a
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/// file name with fully qualified path, or a library for which the Linker's
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/// LibraryPath will be utilized to locate the library. The bool value in
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/// the LinkItemKind should be set to true for libraries. This function
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/// allows linking to preserve the order of specification associated with
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/// the command line, or for other purposes. Each item will be linked in
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/// turn as it occurs in \p Items.
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/// the LinkItemKind should be set to true for libraries. This function
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/// allows linking to preserve the order of specification associated with
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/// the command line, or for other purposes. Each item will be linked in
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/// turn as it occurs in \p Items.
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/// @returns true if an error occurred, false otherwise
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/// @see LinkItemKind
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/// @see getLastError
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@@ -156,11 +156,11 @@ class Linker {
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const ItemList& Items // Set of libraries/files to link in
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);
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/// This function links the bytecode \p Files into the composite module.
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/// Note that this does not do any linking of unresolved symbols. The \p
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/// Files are all completely linked into \p HeadModule regardless of
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/// unresolved symbols. This function just loads each bytecode file and
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/// calls LinkInModule on them.
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/// This function links the bytecode \p Files into the composite module.
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/// Note that this does not do any linking of unresolved symbols. The \p
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/// Files are all completely linked into \p HeadModule regardless of
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/// unresolved symbols. This function just loads each bytecode file and
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/// calls LinkInModule on them.
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/// @returns true if an error occurs, false otherwise
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/// @see getLastError
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/// @brief Link in multiple files.
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@@ -179,11 +179,11 @@ class Linker {
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const sys::Path& File ///< File to link in.
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);
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/// This function provides a way to selectively link in a set of modules,
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/// found in libraries, based on the unresolved symbols in the composite
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/// This function provides a way to selectively link in a set of modules,
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/// found in libraries, based on the unresolved symbols in the composite
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/// module. Each item in \p Libraries should be the base name of a library,
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/// as if given with the -l option of a linker tool. The Linker's LibPaths
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/// are searched for the \p Libraries and any found will be linked in with
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/// are searched for the \p Libraries and any found will be linked in with
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/// LinkInArchive. If an error occurs, the Linker's error string is set.
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/// @see LinkInArchive
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/// @see getLastError
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@@ -193,9 +193,9 @@ class Linker {
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const std::vector<std::string> & Libraries ///< Libraries to link in
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);
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/// This function provides a way to selectively link in a set of modules,
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/// This function provides a way to selectively link in a set of modules,
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/// found in one library, based on the unresolved symbols in the composite
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/// module.The \p Library should be the base name of a library, as if given
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/// module.The \p Library should be the base name of a library, as if given
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/// with the -l option of a linker tool. The Linker's LibPaths are searched
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/// for the \P Library and if found, it will be linked in with via the
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/// LinkInArchive method. If an error occurs, the Linker's error string is
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@@ -209,25 +209,25 @@ class Linker {
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);
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/// This function links one bytecode archive, \p Filename, into the module.
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/// The archive is searched to resolve outstanding symbols. Any modules in
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/// the archive that resolve outstanding symbols will be linked in. The
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/// library is searched repeatedly until no more modules that resolve
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/// The archive is searched to resolve outstanding symbols. Any modules in
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/// the archive that resolve outstanding symbols will be linked in. The
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/// library is searched repeatedly until no more modules that resolve
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/// symbols can be found. If an error occurs, the error string is set.
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/// To speed up this function, ensure the the archive has been processed
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/// To speed up this function, ensure the the archive has been processed
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/// llvm-ranlib or the S option was given to llvm-ar when the archive was
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/// created. These tools add a symbol table to the archive which makes the
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/// search for undefined symbols much faster.
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/// @see getLastError
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/// @returns true if an error occurs, otherwise false.
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/// @returns true if an error occurs, otherwise false.
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/// @brief Link in one archive.
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bool LinkInArchive(
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bool LinkInArchive(
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const sys::Path& Filename ///< Filename of the archive to link
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);
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/// This method links the \p Src module into the Linker's Composite module
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/// by calling LinkModules. All the other LinkIn* methods eventually
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/// result in calling this method to link a Module into the Linker's
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/// composite.
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/// by calling LinkModules. All the other LinkIn* methods eventually
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/// result in calling this method to link a Module into the Linker's
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/// composite.
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/// @see LinkModules
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/// @returns True if an error occurs, false otherwise.
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/// @brief Link in a module.
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@@ -235,11 +235,11 @@ class Linker {
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Module* Src ///< Module linked into \p Dest
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) { return LinkModules(Composite, Src, &Error); }
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/// This is the heart of the linker. This method will take unconditional
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/// This is the heart of the linker. This method will take unconditional
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/// control of the \p Src module and link it into the \p Dest module. The
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/// \p Src module will be destructed or subsumed by this method. In either
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/// case it is not usable by the caller after this method is invoked. Only
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/// the \p Dest module will remain. The \p Src module is linked into the
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/// the \p Dest module will remain. The \p Src module is linked into the
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/// Linker's composite module such that types, global variables, functions,
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/// and etc. are matched and resolved. If an error occurs, this function
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/// returns true and ErrorMsg is set to a descriptive message about the
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@@ -277,7 +277,7 @@ class Linker {
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std::string Error; ///< Text of error that occurred.
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std::string ProgramName; ///< Name of the program being linked
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/// @}
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};
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} // End llvm namespace
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