b18489c8bf
As written in the comment in this patch, symbol names specified with /export option is resolved in a special way; for /export:foo, linker finds a foo@<number> symbol if such symbols exists. On Windows, a function in stdcall calling convention is mangled with a leading underscore and following "@" and numbers. This name mangling is kind of automatic, so you can sometimes omit _ and @number when specifying a symbol. /export option is that case. Previously, if a file in an archive file foo.lib provides a symbol _fn@8, and /export:fn is specified, LLD failed to resolve the symbol. It only tried to find _fn, and failed to find _fn@8. With this patch, _fn@8 will be searched on the second iteration. Differential Revision: http://reviews.llvm.org/D3736 llvm-svn: 208754
53 lines
1.9 KiB
Plaintext
53 lines
1.9 KiB
Plaintext
# RUN: yaml2obj %p/Inputs/export.obj.yaml > %t.obj
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#
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# RUN: lld -flavor link /out:%t1.dll /dll /entry:init \
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# RUN: /export:exportfn1 /export:exportfn2 -- %t.obj
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# RUN: llvm-objdump -p %t1.dll | FileCheck -check-prefix=CHECK1 %s
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CHECK1: Export Table:
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CHECK1: DLL name: export.test.tmp1.dll
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CHECK1: Ordinal RVA Name
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CHECK1-NEXT: 1 0x2008 exportfn1
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CHECK1-NEXT: 2 0x2010 exportfn2
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# RUN: lld -flavor link /out:%t2.dll /dll /subsystem:console /entry:init \
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# RUN: /export:exportfn1,@5 /export:exportfn2 -- %t.obj
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# RUN: llvm-objdump -p %t2.dll | FileCheck -check-prefix=CHECK2 %s
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CHECK2: Export Table:
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CHECK2: DLL name: export.test.tmp2.dll
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CHECK2: Ordinal RVA Name
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CHECK2-NEXT: 5 0x2008 exportfn1
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CHECK2-NEXT: 6 0x2010 exportfn2
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# RUN: lld -flavor link /out:%t3.dll /dll /subsystem:console /entry:init \
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# RUN: /export:exportfn1,@5,noname /export:exportfn2 -- %t.obj
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# RUN: llvm-objdump -p %t3.dll | FileCheck -check-prefix=CHECK3 %s
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CHECK3: Export Table:
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CHECK3: DLL name: export.test.tmp3.dll
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CHECK3: Ordinal RVA Name
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CHECK3-NEXT: 5 0x2008
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CHECK3-NEXT: 6 0x2010 exportfn2
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# RUN: lld -flavor link /out:%t4.dll /dll /entry:init \
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# RUN: /def:%p/Inputs/exports.def -- %t.obj
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# RUN: llvm-objdump -p %t4.dll | FileCheck -check-prefix=CHECK4 %s
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CHECK4: Export Table:
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CHECK4: DLL name: export.test.tmp4.dll
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CHECK4: Ordinal RVA Name
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CHECK4-NEXT: 5 0x2008 exportfn1
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CHECK4-NEXT: 6 0x2010 exportfn2
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CHECK4-NEXT: 7 0x2010 exportfn5
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CHECK4-NEXT: 8 0x2010 exportfn3@256
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# RUN: lld -flavor link /out:%t5.dll /dll /entry:init \
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# RUN: /export:exportfn7 -- %t.obj
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# RUN: llvm-objdump -p %t5.dll | FileCheck -check-prefix=CHECK5 %s
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CHECK5: Export Table:
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CHECK5: DLL name: export.test.tmp5.dll
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CHECK5: Ordinal RVA Name
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CHECK5-NEXT: 1 0x2010 exportfn7
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