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[driver] Fix so that clang can find correct path prefix for libc object files 

from GNU binutils supporting multi-arch folder for ARM target.
Patch by Jiangning Liu <jiangning.liu@arm.com>.

llvm-svn: 160060
This commit is contained in:
Chad Rosier 2012-07-11 19:08:21 +00:00
parent b17122859b
commit 4dce73af05
1 changed files with 5 additions and 0 deletions
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5
clang/lib/Driver/ToolChains.cpp
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@ -1905,6 +1905,11 @@ static std::string getMultiarchTriple(const llvm::Triple TargetTriple,
// common linux triples that don't quite match the Clang triple for both
// 32-bit and 64-bit targets. Multiarch fixes its install triples to these
// regardless of what the actual target triple is.
case llvm::Triple::arm:
case llvm::Triple::thumb:
if (llvm::sys::fs::exists(SysRoot + "/lib/arm-linux-gnueabi"))
return "arm-linux-gnueabi";
return TargetTriple.str();
case llvm::Triple::x86:
if (llvm::sys::fs::exists(SysRoot + "/lib/i386-linux-gnu"))
return "i386-linux-gnu";