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Make sure the STT_FILE symbol is the first one in the symbol table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114285 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -34,6 +34,15 @@
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#include <vector>
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#include <vector>
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using namespace llvm;
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using namespace llvm;
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static unsigned GetType(const MCSymbolData &SD) {
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uint32_t Type = (SD.getFlags() & (0xf << ELF_STT_Shift)) >> ELF_STT_Shift;
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assert(Type == ELF::STT_NOTYPE || Type == ELF::STT_OBJECT ||
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Type == ELF::STT_FUNC || Type == ELF::STT_SECTION ||
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Type == ELF::STT_FILE || Type == ELF::STT_COMMON ||
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Type == ELF::STT_TLS);
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return Type;
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}
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namespace {
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namespace {
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class ELFObjectWriterImpl {
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class ELFObjectWriterImpl {
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@ -64,6 +73,10 @@ namespace {
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// Support lexicographic sorting.
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// Support lexicographic sorting.
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bool operator<(const ELFSymbolData &RHS) const {
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bool operator<(const ELFSymbolData &RHS) const {
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if (GetType(*SymbolData) == ELF::STT_FILE)
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return true;
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if (GetType(*RHS.SymbolData) == ELF::STT_FILE)
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return false;
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return SymbolData->getSymbol().getName() <
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return SymbolData->getSymbol().getName() <
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RHS.SymbolData->getSymbol().getName();
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RHS.SymbolData->getSymbol().getName();
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}
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}
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23
test/MC/ELF/file.s
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23
test/MC/ELF/file.s
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@ -0,0 +1,23 @@
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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 the STT_FILE symbol precedes the other local symbols.
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.file "foo"
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foa:
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// CHECK: # Symbol 1
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// CHECK-NEXT: (('st_name', 1) # 'foo'
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// CHECK-NEXT: ('st_bind', 0)
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// CHECK-NEXT: ('st_type', 4)
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// CHECK-NEXT: ('st_other', 0)
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// CHECK-NEXT: ('st_shndx', 65521)
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// CHECK-NEXT: ('st_value', 0)
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// CHECK-NEXT: ('st_size', 0)
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// CHECK-NEXT: ),
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// CHECK-NEXT: # Symbol 2
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// CHECK-NEXT: (('st_name', 5) # 'foa'
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// CHECK-NEXT: ('st_bind', 0)
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// CHECK-NEXT: ('st_type', 0)
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// CHECK-NEXT: ('st_other', 0)
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// CHECK-NEXT: ('st_shndx', 1)
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// CHECK-NEXT: ('st_value', 0)
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// CHECK-NEXT: ('st_size', 0)
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