http://llvm.org/bugs/show_bug.cgi?id=20597
Bug ID: 20597
Summary: clang-cl: '@' args after /link should not be expanded
to response files
Product: clang
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Driver
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
The "/base" flag of MSVC's linker.exe (see
http://msdn.microsoft.com/en-us/library/f7f5138s.aspx) accepts two forms:
/base:{address[,size]}
or
/base:@filename,key
The latter construction is problematic for clang because of the '@' character.
In this case, '@' is not a response file, but a list of key-value pairs that
link.exe can read to establish the base address. However, if a user tries to
pass this argument to the linker via clang-cl, she would be forced to use:
clang-cl /link /base:@filename,key
In this case, clang commandline utilities will wrongly expand the '@' args to a
response file before the clang arg parser kicks in.
This bug could occur in theory, but I am not sure if it occurs in practice. I
am filing it here to keep track of it.
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