[Driver] Support -muclibc / -mglibc command line options for a couple
of MIPS toolchains.
The uCLibc implemented for multiple architectures. A couple of MIPS toolchains
contains both uCLibc and glibc implementation so these options allow to select
used C library.
Initially -muclibc / -mglibc (as well as -mbionic) have been implemented in gcc
for various architectures so they are not MIPS specific.
llvm-svn: 215552
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 801ba2f..985c72b 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -5377,6 +5377,11 @@
return A && (A->getValue() == StringRef(Value));
}
+bool mips::isUCLibc(const ArgList &Args) {
+ Arg *A = Args.getLastArg(options::OPT_m_libc_Group);
+ return A && A->getOption().matches(options::OPT_muclibc);
+}
+
bool mips::isNaN2008(const ArgList &Args, const llvm::Triple &Triple) {
if (Arg *NaNArg = Args.getLastArg(options::OPT_mnan_EQ))
return llvm::StringSwitch<bool>(NaNArg->getValue())
@@ -7302,7 +7307,11 @@
.Case("n32", "/lib32")
.Case("n64", "/lib64")
.Default("/lib");
- StringRef LibName = IsNaN2008 ? "ld-linux-mipsn8.so.1" : "ld.so.1";
+ StringRef LibName;
+ if (mips::isUCLibc(Args))
+ LibName = IsNaN2008 ? "ld-uClibc-mipsn8.so.0" : "ld-uClibc.so.0";
+ else
+ LibName = IsNaN2008 ? "ld-linux-mipsn8.so.1" : "ld.so.1";
return (LibDir + "/" + LibName).str();
} else if (ToolChain.getArch() == llvm::Triple::ppc)