[llvm-commits] [llvm] r96095 - in /llvm/trunk/lib/MC: MCAssembler.cpp MCMachOStreamer.cpp
Daniel Dunbar
daniel at zuster.org
Sat Feb 13 01:29:02 PST 2010
Author: ddunbar
Date: Sat Feb 13 03:29:02 2010
New Revision: 96095
URL: http://llvm.org/viewvc/llvm-project?rev=96095&view=rev
Log:
MC/Mach-O: Start emitting fixups/relocations for instructions.
Modified:
llvm/trunk/lib/MC/MCAssembler.cpp
llvm/trunk/lib/MC/MCMachOStreamer.cpp
Modified: llvm/trunk/lib/MC/MCAssembler.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCAssembler.cpp?rev=96095&r1=96094&r2=96095&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCAssembler.cpp (original)
+++ llvm/trunk/lib/MC/MCAssembler.cpp Sat Feb 13 03:29:02 2010
@@ -23,6 +23,10 @@
#include "llvm/Support/MachO.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Debug.h"
+
+// FIXME: Gross.
+#include "../Target/X86/X86FixupKinds.h"
+
#include <vector>
using namespace llvm;
@@ -50,8 +54,11 @@
static unsigned getFixupKindLog2Size(MCFixupKind Kind) {
switch (Kind) {
default: llvm_unreachable("invalid fixup kind!");
+ case X86::reloc_pcrel_1byte:
case FK_Data_1: return 0;
case FK_Data_2: return 1;
+ case X86::reloc_pcrel_4byte:
+ case X86::reloc_riprel_4byte:
case FK_Data_4: return 2;
case FK_Data_8: return 3;
}
Modified: llvm/trunk/lib/MC/MCMachOStreamer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCMachOStreamer.cpp?rev=96095&r1=96094&r2=96095&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCMachOStreamer.cpp (original)
+++ llvm/trunk/lib/MC/MCMachOStreamer.cpp Sat Feb 13 03:29:02 2010
@@ -382,12 +382,23 @@
CurSectionData->setHasInstructions(true);
- // FIXME: Relocations!
SmallVector<MCFixup, 4> Fixups;
SmallString<256> Code;
raw_svector_ostream VecOS(Code);
Emitter->EncodeInstruction(Inst, VecOS, Fixups);
- EmitBytes(VecOS.str(), 0);
+ VecOS.flush();
+
+ // Add the fixups and data.
+ MCDataFragment *DF = dyn_cast_or_null<MCDataFragment>(getCurrentFragment());
+ if (!DF)
+ DF = new MCDataFragment(CurSectionData);
+ for (unsigned i = 0, e = Fixups.size(); i != e; ++i) {
+ MCFixup &F = Fixups[i];
+ DF->getFixups().push_back(MCAsmFixup(DF->getContents().size()+F.getOffset(),
+ *F.getValue(),
+ F.getKind()));
+ }
+ DF->getContents().append(Code.begin(), Code.end());
}
void MCMachOStreamer::Finish() {
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