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Write the section header in the end.
One could make the argument for writing it immediately after the ELF header, but writing it in the middle of the sections like we were doing just makes it harder for no reason. llvm-svn: 234400
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dfc57dd379
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26a13bd558
@ -1676,8 +1676,6 @@ void ELFObjectWriter::WriteObject(MCAssembler &Asm,
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createIndexedSections(Asm, const_cast<MCAsmLayout &>(Layout), GroupMap,
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RevGroupMap, SectionIndexMap);
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unsigned NumRegularSections = Asm.size();
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// Compute symbol table information.
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computeSymbolTable(Asm, Layout, SectionIndexMap, RevGroupMap);
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@ -1696,7 +1694,8 @@ void ELFObjectWriter::WriteObject(MCAssembler &Asm,
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ComputeSectionOrder(Asm, Sections);
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unsigned NumSections = Sections.size();
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SectionOffsetMapTy SectionOffsetMap;
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for (unsigned i = 0; i < NumRegularSections + 1; ++i) {
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for (unsigned i = 0; i < NumSections; ++i) {
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const MCSectionELF &Section = *Sections[i];
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const MCSectionData &SD = Asm.getOrCreateSectionData(Section);
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@ -1713,29 +1712,11 @@ void ELFObjectWriter::WriteObject(MCAssembler &Asm,
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const unsigned SectionHeaderOffset = FileOff;
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uint64_t SectionHeaderEntrySize = is64Bit() ?
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sizeof(ELF::Elf64_Shdr) : sizeof(ELF::Elf32_Shdr);
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FileOff += (NumSections + 1) * SectionHeaderEntrySize;
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for (unsigned i = NumRegularSections + 1; i < NumSections; ++i) {
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const MCSectionELF &Section = *Sections[i];
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const MCSectionData &SD = Asm.getOrCreateSectionData(Section);
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FileOff = RoundUpToAlignment(FileOff, SD.getAlignment());
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// Remember the offset into the file for this section.
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SectionOffsetMap[&Section] = FileOff;
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// Get the size of the section in the output file (including padding).
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FileOff += GetSectionFileSize(Layout, SD);
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}
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// Write out the ELF header ...
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WriteHeader(Asm, SectionHeaderOffset, NumSections + 1);
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// ... then the regular sections ...
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// + because of .shstrtab
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for (unsigned i = 0; i < NumRegularSections + 1; ++i)
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// ... then the sections ...
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for (unsigned i = 0; i < NumSections; ++i)
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WriteDataSectionData(Asm, Layout, *Sections[i]);
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uint64_t Padding = OffsetToAlignment(OS.tell(), NaturalAlignment);
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@ -1743,10 +1724,6 @@ void ELFObjectWriter::WriteObject(MCAssembler &Asm,
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// ... then the section header table ...
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writeSectionHeader(Asm, GroupMap, Layout, SectionIndexMap, SectionOffsetMap);
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// ... and then the remaining sections ...
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for (unsigned i = NumRegularSections + 1; i < NumSections; ++i)
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WriteDataSectionData(Asm, Layout, *Sections[i]);
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}
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bool ELFObjectWriter::IsSymbolRefDifferenceFullyResolvedImpl(
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@ -42,7 +42,7 @@ barf: @ @barf
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@ OBJ-NEXT: Flags [ (0x0)
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@ OBJ-NEXT: ]
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@ OBJ-NEXT: Address: 0x0
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@ OBJ-NEXT: Offset: 0x22C
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@ OBJ-NEXT: Offset:
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@ OBJ-NEXT: Size: 16
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@ OBJ-NEXT: Link: 6
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@ OBJ-NEXT: Info: 1
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@ -53,7 +53,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x3C8
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 72
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -38,7 +38,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x490
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -40,7 +40,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x398
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -35,7 +35,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x390
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -35,7 +35,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x390
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -36,7 +36,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x390
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -35,7 +35,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x390
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -36,7 +36,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x390
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -44,7 +44,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x3A0
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -35,7 +35,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x390
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -38,7 +38,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x390
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -36,7 +36,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x390
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -36,7 +36,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x390
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -36,7 +36,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x390
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -38,7 +38,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x390
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -43,7 +43,7 @@ f:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x398
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -355,7 +355,7 @@ f37:
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0xE70
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 1752
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// CHECK-NEXT: Link: 7
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// CHECK-NEXT: Info: 4
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@ -19,7 +19,7 @@
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x2E8
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 48
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// CHECK-NEXT: Link: 6
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// CHECK-NEXT: Info: 1
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@ -41,7 +41,7 @@ defined3:
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// CHECK-NEXT: Flags [ (0x0)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x320
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 6
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// CHECK-NEXT: Info: 1
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