summaryrefslogtreecommitdiffstats
path: root/contrib/llvm/lib/CodeGen/ELFCodeEmitter.h
diff options
context:
space:
mode:
Diffstat (limited to 'contrib/llvm/lib/CodeGen/ELFCodeEmitter.h')
-rw-r--r--contrib/llvm/lib/CodeGen/ELFCodeEmitter.h78
1 files changed, 78 insertions, 0 deletions
diff --git a/contrib/llvm/lib/CodeGen/ELFCodeEmitter.h b/contrib/llvm/lib/CodeGen/ELFCodeEmitter.h
new file mode 100644
index 0000000..2ec1f6e
--- /dev/null
+++ b/contrib/llvm/lib/CodeGen/ELFCodeEmitter.h
@@ -0,0 +1,78 @@
+//===-- lib/CodeGen/ELFCodeEmitter.h ----------------------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef ELFCODEEMITTER_H
+#define ELFCODEEMITTER_H
+
+#include "llvm/CodeGen/ObjectCodeEmitter.h"
+#include <vector>
+
+namespace llvm {
+ class ELFWriter;
+ class ELFSection;
+
+ /// ELFCodeEmitter - This class is used by the ELFWriter to
+ /// emit the code for functions to the ELF file.
+ class ELFCodeEmitter : public ObjectCodeEmitter {
+ ELFWriter &EW;
+
+ /// Target machine description
+ TargetMachine &TM;
+
+ /// Section containing code for functions
+ ELFSection *ES;
+
+ /// Relocations - Record relocations needed by the current function
+ std::vector<MachineRelocation> Relocations;
+
+ /// JTRelocations - Record relocations needed by the relocation
+ /// section.
+ std::vector<MachineRelocation> JTRelocations;
+
+ /// FnStartPtr - Function offset from the beginning of ELFSection 'ES'
+ uintptr_t FnStartOff;
+ public:
+ explicit ELFCodeEmitter(ELFWriter &ew) : EW(ew), TM(EW.TM) {}
+
+ /// addRelocation - Register new relocations for this function
+ void addRelocation(const MachineRelocation &MR) {
+ Relocations.push_back(MR);
+ }
+
+ /// emitConstantPool - For each constant pool entry, figure out which
+ /// section the constant should live in and emit data to it
+ void emitConstantPool(MachineConstantPool *MCP);
+
+ /// emitJumpTables - Emit all the jump tables for a given jump table
+ /// info and record them to the appropriate section.
+ void emitJumpTables(MachineJumpTableInfo *MJTI);
+
+ void startFunction(MachineFunction &F);
+ bool finishFunction(MachineFunction &F);
+
+ /// emitLabel - Emits a label
+ virtual void emitLabel(MCSymbol *Label) {
+ assert("emitLabel not implemented");
+ }
+
+ /// getLabelAddress - Return the address of the specified LabelID,
+ /// only usable after the LabelID has been emitted.
+ virtual uintptr_t getLabelAddress(MCSymbol *Label) const {
+ assert("getLabelAddress not implemented");
+ return 0;
+ }
+
+ virtual void setModuleInfo(llvm::MachineModuleInfo* MMI) {}
+
+}; // end class ELFCodeEmitter
+
+} // end namespace llvm
+
+#endif
+
OpenPOWER on IntegriCloud