https://bugs.llvm.org/show_bug.cgi?id=33284
Bug ID: 33284
Summary: LLD .def file parser cannot resolve names of fastcall
exports
Product: lld
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: COFF
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
The Microsoft tools will make a DLL that exports "@foo@8" out of the following
.c file and .def file:
$ cat foo.c
int __fastcall foo(int x, int y) { return x + y; }
$ cat foo.def
EXPORTS
foo
# Use a 32-bit compiler
$ cl -c foo.c && link -dll -out:foo.dll foo.obj
Microsoft (R) C/C++ Optimizing Compiler Version 19.00.24215.1 for x86
Copyright (C) Microsoft Corporation. All rights reserved.
foo.c
Microsoft (R) Incremental Linker Version 14.00.24215.1
Copyright (C) Microsoft Corporation. All rights reserved.
Creating library foo.lib and object foo.exp
$ llvm-nm foo.lib
...
foo.dll:
00000000 T @foo@8
00000000 T __imp_@foo@8
If you substitute lld-link into the above command, I get:
C:\src\llvm-project\build\bin\lld-link.exe: warning: <root>: undefined symbol:
_foo
error: link failed
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