forked from OSchip/llvm-project
Symbols defined as the difference of other two end up in the ABS section.
llvm-svn: 117451
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d2893dd0b9
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cc1b168ef6
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@ -863,7 +863,7 @@ void ELFObjectWriterImpl::ComputeSymbolTable(MCAssembler &Asm) {
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if (it->isCommon()) {
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assert(!Local);
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MSD.SectionIndex = ELF::SHN_COMMON;
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} else if (Symbol.isAbsolute()) {
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} else if (Symbol.isAbsolute() || RefSymbol.isVariable()) {
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MSD.SectionIndex = ELF::SHN_ABS;
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} else if (RefSymbol.isUndefined()) {
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MSD.SectionIndex = ELF::SHN_UNDEF;
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@ -871,11 +871,8 @@ void ELFObjectWriterImpl::ComputeSymbolTable(MCAssembler &Asm) {
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// are able to set it.
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if (GetBinding(*it) == ELF::STB_LOCAL)
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SetBinding(*it, ELF::STB_GLOBAL);
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} else if (Symbol.isVariable()) {
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MSD.SectionIndex = SectionIndexMap.lookup(&RefSymbol.getSection());
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assert(MSD.SectionIndex && "Invalid section index!");
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} else {
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MSD.SectionIndex = SectionIndexMap.lookup(&Symbol.getSection());
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MSD.SectionIndex = SectionIndexMap.lookup(&RefSymbol.getSection());
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assert(MSD.SectionIndex && "Invalid section index!");
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}
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@ -0,0 +1,16 @@
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// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | elf-dump | FileCheck %s
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// Test that zed will be an ABS symbol
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.Lfoo:
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.Lbar:
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zed = .Lfoo - .Lbar
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// CHECK: # Symbol 0x00000001
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// CHECK-NEXT: (('st_name', 0x00000001) # 'zed'
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// CHECK-NEXT: ('st_bind', 0x00000000)
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// CHECK-NEXT: ('st_type', 0x00000000)
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// CHECK-NEXT: ('st_other', 0x00000000)
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// CHECK-NEXT: ('st_shndx', 0x0000fff1)
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// CHECK-NEXT: ('st_value', 0x00000000)
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// CHECK-NEXT: ('st_size', 0x00000000)
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