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objdump: identify WoA WinCOFF/ARM correctly 

Since LLVM currently only supports WinCOFF, assume that the input is WinCOFF
rather than another type of COFF file (ECOFF/XCOFF).  If the architecture is
detected as thumb (e.g. the file has a IMAGE_FILE_MACHINE_ARMNT magic) then use
a triple of thumbv7-windows.

This allows for objdump to properly handle WoA object files without having to
specify the target triple manually.

llvm-svn: 206446
This commit is contained in:
Saleem Abdulrasool 2014-04-17 06:17:23 +00:00
parent 1614b26886
commit 98938f1e0a
1 changed files with 6 additions and 0 deletions
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6
llvm/tools/llvm-objdump/llvm-objdump.cpp
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@ -167,6 +167,12 @@ static const Target *getTarget(const ObjectFile *Obj = NULL) {
// the best we can do here is indicate that it is mach-o.
if (Obj->isMachO())
TheTriple.setObjectFormat(Triple::MachO);
if (Obj->isCOFF()) {
const auto COFFObj = dyn_cast<COFFObjectFile>(Obj);
if (COFFObj->getArch() == Triple::thumb)
TheTriple.setTriple("thumbv7-windows");
}
}
} else
TheTriple.setTriple(Triple::normalize(TripleName));