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Second try at making direct object emission produce the same results

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as llc + llvm-mc. This time ELF is not changed and I tested that llvm-gcc
bootstrap on darwin10 using darwin9's assembler and linker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121006 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2010-12-06 17:27:56 +00:00
parent 6d86492f5e
commit 0bbe0b440e
9 changed files with 26 additions and 55 deletions
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13
lib/MC/MCDwarf.cpp
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@@ -213,15 +213,8 @@ void MCDwarfFileTable::Emit(MCStreamer *MCOS,
// The first 4 bytes is the total length of the information for this
// compilation unit (not including these 4 bytes for the length).
// FIXME: We create the dummy TotalLength variable because LineEndSym points
// to the end of the section and the darwin assembler doesn't consider that
// difference an assembly time constant. It might be better for this to be
// proected by a flag.
MCSymbol *TotalLength = MCOS->getContext().CreateTempSymbol();
MCOS->EmitAssignment(TotalLength,
MakeStartMinusEndExpr(MCOS, LineStartSym, LineEndSym,
4));
MCOS->EmitSymbolValue(TotalLength, 4, 0);
MCOS->EmitAbsValue(MakeStartMinusEndExpr(MCOS, LineStartSym, LineEndSym,4),
4);
// Next 2 bytes is the Version, which is Dwarf 2.
MCOS->EmitIntValue(2, 2);
@@ -233,7 +226,7 @@ void MCDwarfFileTable::Emit(MCStreamer *MCOS,
// section to the end of the prologue. Not including the 4 bytes for the
// total length, the 2 bytes for the version, and these 4 bytes for the
// length of the prologue.
MCOS->EmitValue(MakeStartMinusEndExpr(MCOS, LineStartSym, ProEndSym,
MCOS->EmitAbsValue(MakeStartMinusEndExpr(MCOS, LineStartSym, ProEndSym,
(4 + 2 + 4)),
4, 0);