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-rw-r--r--llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp4
-rw-r--r--llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp2
-rw-r--r--llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp4
-rw-r--r--llvm/lib/CodeGen/AsmPrinter/DIE.cpp5
-rw-r--r--llvm/lib/MC/MCAsmStreamer.cpp6
-rw-r--r--llvm/lib/MC/MCCodeView.cpp2
-rw-r--r--llvm/lib/MC/MCParser/COFFAsmParser.cpp15
-rw-r--r--llvm/lib/MC/MCStreamer.cpp5
-rw-r--r--llvm/lib/MC/WinCOFFStreamer.cpp15
9 files changed, 42 insertions, 16 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index f0537e04165..de0a4f0befa 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -1689,7 +1689,9 @@ void AsmPrinter::EmitLabelPlusOffset(const MCSymbol *Label, uint64_t Offset,
unsigned Size,
bool IsSectionRelative) const {
if (MAI->needsDwarfSectionOffsetDirective() && IsSectionRelative) {
- OutStreamer->EmitCOFFSecRel32(Label);
+ OutStreamer->EmitCOFFSecRel32(Label, Offset);
+ if (Size > 4)
+ OutStreamer->EmitZeros(Size - 4);
return;
}
diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
index 6c1cc7e519e..0185c380cc3 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
@@ -149,7 +149,7 @@ void AsmPrinter::emitDwarfSymbolReference(const MCSymbol *Label,
if (!ForceOffset) {
// On COFF targets, we have to emit the special .secrel32 directive.
if (MAI->needsDwarfSectionOffsetDirective()) {
- OutStreamer->EmitCOFFSecRel32(Label);
+ OutStreamer->EmitCOFFSecRel32(Label, /*Offset=*/0);
return;
}
diff --git a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
index 8dde4a1031b..408b34a3cdc 100644
--- a/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
@@ -801,7 +801,7 @@ void CodeViewDebug::emitDebugInfoForFunction(const Function *GV,
OS.AddComment("Function type index");
OS.EmitIntValue(getFuncIdForSubprogram(GV->getSubprogram()).getIndex(), 4);
OS.AddComment("Function section relative address");
- OS.EmitCOFFSecRel32(Fn);
+ OS.EmitCOFFSecRel32(Fn, /*Offset=*/0);
OS.AddComment("Function section index");
OS.EmitCOFFSectionIndex(Fn);
OS.AddComment("Flags");
@@ -2279,7 +2279,7 @@ void CodeViewDebug::emitDebugInfoForGlobal(const DIGlobalVariable *DIGV,
OS.AddComment("Type");
OS.EmitIntValue(getCompleteTypeIndex(DIGV->getType()).getIndex(), 4);
OS.AddComment("DataOffset");
- OS.EmitCOFFSecRel32(GVSym);
+ OS.EmitCOFFSecRel32(GVSym, /*Offset=*/0);
OS.AddComment("Segment");
OS.EmitCOFFSectionIndex(GVSym);
OS.AddComment("Name");
diff --git a/llvm/lib/CodeGen/AsmPrinter/DIE.cpp b/llvm/lib/CodeGen/AsmPrinter/DIE.cpp
index 622e4dc9258..8ae2f2487ca 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DIE.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DIE.cpp
@@ -495,7 +495,8 @@ void DIELabel::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const {
AP->EmitLabelReference(Label, SizeOf(AP, Form),
Form == dwarf::DW_FORM_strp ||
Form == dwarf::DW_FORM_sec_offset ||
- Form == dwarf::DW_FORM_ref_addr);
+ Form == dwarf::DW_FORM_ref_addr ||
+ Form == dwarf::DW_FORM_data4);
}
/// SizeOf - Determine size of label value in bytes.
@@ -642,7 +643,7 @@ void DIEEntry::EmitValue(const AsmPrinter *AP, dwarf::Form Form) const {
MCSection *Section = Unit->getSection();
if (Section) {
const MCSymbol *SectionSym = Section->getBeginSymbol();
- AP->EmitLabelPlusOffset(SectionSym, Addr, SizeOf(AP, Form));
+ AP->EmitLabelPlusOffset(SectionSym, Addr, SizeOf(AP, Form), true);
return;
}
}
diff --git a/llvm/lib/MC/MCAsmStreamer.cpp b/llvm/lib/MC/MCAsmStreamer.cpp
index 7227f1e25d8..817009a6536 100644
--- a/llvm/lib/MC/MCAsmStreamer.cpp
+++ b/llvm/lib/MC/MCAsmStreamer.cpp
@@ -150,7 +150,7 @@ public:
void EndCOFFSymbolDef() override;
void EmitCOFFSafeSEH(MCSymbol const *Symbol) override;
void EmitCOFFSectionIndex(MCSymbol const *Symbol) override;
- void EmitCOFFSecRel32(MCSymbol const *Symbol) override;
+ void EmitCOFFSecRel32(MCSymbol const *Symbol, uint64_t Offset) override;
void emitELFSize(MCSymbol *Symbol, const MCExpr *Value) override;
void EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment) override;
@@ -617,9 +617,11 @@ void MCAsmStreamer::EmitCOFFSectionIndex(MCSymbol const *Symbol) {
EmitEOL();
}
-void MCAsmStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
+void MCAsmStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol, uint64_t Offset) {
OS << "\t.secrel32\t";
Symbol->print(OS, MAI);
+ if (Offset != 0)
+ OS << '+' << Offset;
EmitEOL();
}
diff --git a/llvm/lib/MC/MCCodeView.cpp b/llvm/lib/MC/MCCodeView.cpp
index 22bdba1ca2b..3773542cf8a 100644
--- a/llvm/lib/MC/MCCodeView.cpp
+++ b/llvm/lib/MC/MCCodeView.cpp
@@ -200,7 +200,7 @@ void CodeViewContext::emitLineTableForFunction(MCObjectStreamer &OS,
OS.EmitIntValue(unsigned(ModuleSubstreamKind::Lines), 4);
OS.emitAbsoluteSymbolDiff(LineEnd, LineBegin, 4);
OS.EmitLabel(LineBegin);
- OS.EmitCOFFSecRel32(FuncBegin);
+ OS.EmitCOFFSecRel32(FuncBegin, /*Offset=*/0);
OS.EmitCOFFSectionIndex(FuncBegin);
// Actual line info.
diff --git a/llvm/lib/MC/MCParser/COFFAsmParser.cpp b/llvm/lib/MC/MCParser/COFFAsmParser.cpp
index 2c9f9eb0cda..f4114795a92 100644
--- a/llvm/lib/MC/MCParser/COFFAsmParser.cpp
+++ b/llvm/lib/MC/MCParser/COFFAsmParser.cpp
@@ -455,13 +455,26 @@ bool COFFAsmParser::ParseDirectiveSecRel32(StringRef, SMLoc) {
if (getParser().parseIdentifier(SymbolID))
return TokError("expected identifier in directive");
+ int64_t Offset = 0;
+ SMLoc OffsetLoc;
+ if (getLexer().is(AsmToken::Plus)) {
+ OffsetLoc = getLexer().getLoc();
+ if (getParser().parseAbsoluteExpression(Offset))
+ return true;
+ }
+
if (getLexer().isNot(AsmToken::EndOfStatement))
return TokError("unexpected token in directive");
+ if (Offset < 0 || Offset > UINT32_MAX)
+ return Error(OffsetLoc,
+ "invalid '.secrel32' directive offset, can't be less "
+ "than zero or greater than UINT32_MAX");
+
MCSymbol *Symbol = getContext().getOrCreateSymbol(SymbolID);
Lex();
- getStreamer().EmitCOFFSecRel32(Symbol);
+ getStreamer().EmitCOFFSecRel32(Symbol, Offset);
return false;
}
diff --git a/llvm/lib/MC/MCStreamer.cpp b/llvm/lib/MC/MCStreamer.cpp
index 5cfa3ae80ce..fb28f856f67 100644
--- a/llvm/lib/MC/MCStreamer.cpp
+++ b/llvm/lib/MC/MCStreamer.cpp
@@ -125,7 +125,7 @@ void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
if (!IsSectionRelative)
EmitValueImpl(MCSymbolRefExpr::create(Sym, getContext()), Size);
else
- EmitCOFFSecRel32(Sym);
+ EmitCOFFSecRel32(Sym, /*Offset=*/0);
}
void MCStreamer::EmitDTPRel64Value(const MCExpr *Value) {
@@ -689,8 +689,7 @@ void MCStreamer::EmitCOFFSafeSEH(MCSymbol const *Symbol) {
void MCStreamer::EmitCOFFSectionIndex(MCSymbol const *Symbol) {
}
-void MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
-}
+void MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol, uint64_t Offset) {}
/// EmitRawText - If this file is backed by an assembly streamer, this dumps
/// the specified string in the output .s file. This capability is
diff --git a/llvm/lib/MC/WinCOFFStreamer.cpp b/llvm/lib/MC/WinCOFFStreamer.cpp
index 5c6407ef1e5..6383d879403 100644
--- a/llvm/lib/MC/WinCOFFStreamer.cpp
+++ b/llvm/lib/MC/WinCOFFStreamer.cpp
@@ -195,11 +195,20 @@ void MCWinCOFFStreamer::EmitCOFFSectionIndex(MCSymbol const *Symbol) {
DF->getContents().resize(DF->getContents().size() + 2, 0);
}
-void MCWinCOFFStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
+void MCWinCOFFStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol,
+ uint64_t Offset) {
MCDataFragment *DF = getOrCreateDataFragment();
- const MCSymbolRefExpr *SRE = MCSymbolRefExpr::create(Symbol, getContext());
- MCFixup Fixup = MCFixup::create(DF->getContents().size(), SRE, FK_SecRel_4);
+ // Create Symbol A for the relocation relative reference.
+ const MCExpr *MCE = MCSymbolRefExpr::create(Symbol, getContext());
+ // Add the constant offset, if given.
+ if (Offset)
+ MCE = MCBinaryExpr::createAdd(
+ MCE, MCConstantExpr::create(Offset, getContext()), getContext());
+ // Build the secrel32 relocation.
+ MCFixup Fixup = MCFixup::create(DF->getContents().size(), MCE, FK_SecRel_4);
+ // Record the relocation.
DF->getFixups().push_back(Fixup);
+ // Emit 4 bytes (zeros) to the object file.
DF->getContents().resize(DF->getContents().size() + 4, 0);
}
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