COFF: Find C++ mangled name for symbols starting with underscore.
Symbol foo is mangled as _foo in C and ?foo@@... in C++ on x86. findMangle has to remove prefix underscore before mangle a given name as a C++ symbol. llvm-svn: 241874
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@ -281,7 +281,14 @@ void SymbolTable::mangleMaybe(Undefined *U) {
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return;
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// In Microsoft ABI, a non-member function name is mangled this way.
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std::string Prefix = ("?" + U->getName() + "@@Y").str();
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std::string Prefix;
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if (Config->is64()) {
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Prefix = ("?" + U->getName() + "@@Y").str();
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} else {
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if (!U->getName().startswith("_"))
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return;
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Prefix = ("?" + U->getName().substr(1) + "@@Y").str();
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}
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for (auto Pair : Symtab) {
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StringRef Name = Pair.first;
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if (!Name.startswith(Prefix))
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@ -10,7 +10,8 @@ CHECK1-NEXT: 0 0
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CHECK1-NEXT: 1 0x1008 exportfn1
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CHECK1-NEXT: 2 0x1010 exportfn2
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# RUN: lld -flavor link2 /out:%t.dll /dll %t.obj /export:exportfn1,@5 /export:exportfn2
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# RUN: lld -flavor link2 /out:%t.dll /dll %t.obj /export:exportfn1,@5 \
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# RUN: /export:exportfn2 /export:mangled
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# RUN: llvm-objdump -p %t.dll | FileCheck -check-prefix=CHECK2 %s
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CHECK2: Export Table:
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@ -24,6 +25,7 @@ CHECK2-NEXT: 4 0
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CHECK2-NEXT: 5 0x1008 exportfn1
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CHECK2-NEXT: 6 0x1010 exportfn2
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CHECK2-NEXT: 7 0x1010 exportfn3
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CHECK2-NEXT: 8 0x1010 mangled
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# RUN: lld -flavor link2 /out:%t.dll /dll %t.obj /export:exportfn1,@5,noname /export:exportfn2
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# RUN: llvm-objdump -p %t.dll | FileCheck -check-prefix=CHECK3 %s
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