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-rw-r--r--include/llvm/ExecutionEngine/ExecutionEngine.h64
1 files changed, 57 insertions, 7 deletions
diff --git a/include/llvm/ExecutionEngine/ExecutionEngine.h b/include/llvm/ExecutionEngine/ExecutionEngine.h
index 233084d..4dca870 100644
--- a/include/llvm/ExecutionEngine/ExecutionEngine.h
+++ b/include/llvm/ExecutionEngine/ExecutionEngine.h
@@ -18,11 +18,11 @@
#include "llvm-c/ExecutionEngine.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
-#include "llvm/ADT/ValueMap.h"
+#include "llvm/IR/ValueHandle.h"
+#include "llvm/IR/ValueMap.h"
#include "llvm/MC/MCCodeGenInfo.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Mutex.h"
-#include "llvm/Support/ValueHandle.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetOptions.h"
#include <map>
@@ -48,6 +48,11 @@ class RTDyldMemoryManager;
class Triple;
class Type;
+namespace object {
+ class Archive;
+ class ObjectFile;
+}
+
/// \brief Helper class for helping synchronize access to the global address map
/// table.
class ExecutionEngineState {
@@ -106,7 +111,7 @@ class ExecutionEngine {
ExecutionEngineState EEState;
/// The target data for the platform for which execution is being performed.
- const DataLayout *TD;
+ const DataLayout *DL;
/// Whether lazy JIT compilation is enabled.
bool CompilingLazily;
@@ -125,7 +130,7 @@ protected:
/// optimize for the case where there is only one module.
SmallVector<Module*, 1> Modules;
- void setDataLayout(const DataLayout *td) { TD = td; }
+ void setDataLayout(const DataLayout *Val) { DL = Val; }
/// getMemoryforGV - Allocate memory for a global variable.
virtual char *getMemoryForGV(const GlobalVariable *GV);
@@ -204,9 +209,36 @@ public:
Modules.push_back(M);
}
+ /// addObjectFile - Add an ObjectFile to the execution engine.
+ ///
+ /// This method is only supported by MCJIT. MCJIT will immediately load the
+ /// object into memory and adds its symbols to the list used to resolve
+ /// external symbols while preparing other objects for execution.
+ ///
+ /// Objects added using this function will not be made executable until
+ /// needed by another object.
+ ///
+ /// MCJIT will take ownership of the ObjectFile.
+ virtual void addObjectFile(object::ObjectFile *O) {
+ llvm_unreachable(
+ "ExecutionEngine subclass doesn't implement addObjectFile.");
+ }
+
+ /// addArchive - Add an Archive to the execution engine.
+ ///
+ /// This method is only supported by MCJIT. MCJIT will use the archive to
+ /// resolve external symbols in objects it is loading. If a symbol is found
+ /// in the Archive the contained object file will be extracted (in memory)
+ /// and loaded for possible execution.
+ ///
+ /// MCJIT will take ownership of the Archive.
+ virtual void addArchive(object::Archive *A) {
+ llvm_unreachable("ExecutionEngine subclass doesn't implement addArchive.");
+ }
+
//===--------------------------------------------------------------------===//
- const DataLayout *getDataLayout() const { return TD; }
+ const DataLayout *getDataLayout() const { return DL; }
/// removeModule - Remove a Module from the list of modules. Returns true if
/// M is found.
@@ -232,7 +264,7 @@ public:
///
/// This function is deprecated for the MCJIT execution engine.
///
- /// FIXME: the JIT and MCJIT interfaces should be disentangled or united
+ /// FIXME: the JIT and MCJIT interfaces should be disentangled or united
/// again, if possible.
///
virtual void *getPointerToNamedFunction(const std::string &Name,
@@ -430,6 +462,24 @@ public:
llvm_unreachable("No support for an object cache");
}
+ /// setProcessAllSections (MCJIT Only): By default, only sections that are
+ /// "required for execution" are passed to the RTDyldMemoryManager, and other
+ /// sections are discarded. Passing 'true' to this method will cause
+ /// RuntimeDyld to pass all sections to its RTDyldMemoryManager regardless
+ /// of whether they are "required to execute" in the usual sense.
+ ///
+ /// Rationale: Some MCJIT clients want to be able to inspect metadata
+ /// sections (e.g. Dwarf, Stack-maps) to enable functionality or analyze
+ /// performance. Passing these sections to the memory manager allows the
+ /// client to make policy about the relevant sections, rather than having
+ /// MCJIT do it.
+ virtual void setProcessAllSections(bool ProcessAllSections) {
+ llvm_unreachable("No support for ProcessAllSections option");
+ }
+
+ /// Return the target machine (if available).
+ virtual TargetMachine *getTargetMachine() { return NULL; }
+
/// DisableLazyCompilation - When lazy compilation is off (the default), the
/// JIT will eagerly compile every function reachable from the argument to
/// getPointerToFunction. If lazy compilation is turned on, the JIT will only
@@ -550,7 +600,7 @@ public:
WhichEngine = w;
return *this;
}
-
+
/// setMCJITMemoryManager - Sets the MCJIT memory manager to use. This allows
/// clients to customize their memory allocation policies for the MCJIT. This
/// is only appropriate for the MCJIT; setting this and configuring the builder