X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FMC%2FMCObjectWriter.cpp;h=6cee76d0400ac7d35f1bc75b68d3d8efe5b0d9c4;hb=345ed9806a0ab5d680da1ff78fe3df7ebbc6107d;hp=ab85e31abb003a73ad926a11285497de7e1412dc;hpb=53b2338a1d061ad15a858ff0d641431f4d4ac101;p=oota-llvm.git

diff --git a/lib/MC/MCObjectWriter.cpp b/lib/MC/MCObjectWriter.cpp
index ab85e31abb0..6cee76d0400 100644
--- a/lib/MC/MCObjectWriter.cpp
+++ b/lib/MC/MCObjectWriter.cpp
@@ -1,4 +1,4 @@
-//===- lib/MC/MCObjetWriter.cpp - MCObjetWriter implementation ------------===//
+//===- lib/MC/MCObjectWriter.cpp - MCObjectWriter implementation ----------===//
 //
 //                     The LLVM Compiler Infrastructure
 //
@@ -13,3 +13,29 @@ using namespace llvm;
 
 MCObjectWriter::~MCObjectWriter() {
 }
+
+/// Utility function to encode a SLEB128 value.
+void MCObjectWriter::EncodeSLEB128(int64_t Value, raw_ostream &OS) {
+  bool More;
+  do {
+    uint8_t Byte = Value & 0x7f;
+    // NOTE: this assumes that this signed shift is an arithmetic right shift.
+    Value >>= 7;
+    More = !((((Value == 0 ) && ((Byte & 0x40) == 0)) ||
+              ((Value == -1) && ((Byte & 0x40) != 0))));
+    if (More)
+      Byte |= 0x80; // Mark this byte that that more bytes will follow.
+    OS << char(Byte);
+  } while (More);
+}
+
+/// Utility function to encode a ULEB128 value.
+void MCObjectWriter::EncodeULEB128(uint64_t Value, raw_ostream &OS) {
+  do {
+    uint8_t Byte = Value & 0x7f;
+    Value >>= 7;
+    if (Value != 0)
+      Byte |= 0x80; // Mark this byte that that more bytes will follow.
+    OS << char(Byte);
+  } while (Value != 0);
+}