MCJIT support for non-function sections.
Move to a by-section allocation and relocation scheme. This allows
better support for sections which do not contain externally visible
symbols.
Flesh out the relocation address vs. local storage address separation a
bit more as well. Remote process JITs use this to tell the relocation
resolution code where the code will live when it executes.
The startFunctionBody/endFunctionBody interfaces to the JIT and the
memory manager are deprecated. They'll stick around for as long as the
old JIT does, but the MCJIT doesn't use them anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148258 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-rtdyld/llvm-rtdyld.cpp b/tools/llvm-rtdyld/llvm-rtdyld.cpp
index 0065880..9fec7c4 100644
--- a/tools/llvm-rtdyld/llvm-rtdyld.cpp
+++ b/tools/llvm-rtdyld/llvm-rtdyld.cpp
@@ -51,12 +51,30 @@
class TrivialMemoryManager : public RTDyldMemoryManager {
public:
SmallVector<sys::MemoryBlock, 16> FunctionMemory;
+ SmallVector<sys::MemoryBlock, 16> DataMemory;
+
+ uint8_t *allocateCodeSection(uintptr_t Size, unsigned Alignment,
+ unsigned SectionID);
+ uint8_t *allocateDataSection(uintptr_t Size, unsigned Alignment,
+ unsigned SectionID);
uint8_t *startFunctionBody(const char *Name, uintptr_t &Size);
void endFunctionBody(const char *Name, uint8_t *FunctionStart,
uint8_t *FunctionEnd);
};
+uint8_t *TrivialMemoryManager::allocateCodeSection(uintptr_t Size,
+ unsigned Alignment,
+ unsigned SectionID) {
+ return (uint8_t*)sys::Memory::AllocateRWX(Size, 0, 0).base();
+}
+
+uint8_t *TrivialMemoryManager::allocateDataSection(uintptr_t Size,
+ unsigned Alignment,
+ unsigned SectionID) {
+ return (uint8_t*)sys::Memory::AllocateRWX(Size, 0, 0).base();
+}
+
uint8_t *TrivialMemoryManager::startFunctionBody(const char *Name,
uintptr_t &Size) {
return (uint8_t*)sys::Memory::AllocateRWX(Size, 0, 0).base();