From edd1fc14b3c3e05b14c3ab1917515a11bc477aca Mon Sep 17 00:00:00 2001
From: Andrea Brancaleoni <miwaxe@gmail.com>
Date: Tue, 8 Sep 2015 22:33:28 +0200
Subject: [PATCH 4/7] fix dynamic linker paths

---
 lib/Driver/Tools.cpp | 43 ++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 38 insertions(+), 5 deletions(-)

diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 19ebbb9..4384829 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -7958,7 +7958,14 @@ static std::string getLinuxDynamicLinker(const ArgList &Args,
       return "/system/bin/linker64";
     else
       return "/system/bin/linker";
-  } else if (Arch == llvm::Triple::x86 || Arch == llvm::Triple::sparc ||
+  } else if (Arch == llvm::Triple::x86) {
+    switch (ToolChain.getTriple().getEnvironment()) {
+      case llvm::Triple::Musl:
+        return "/lib/ld-musl-i386.so.1";
+      default:
+        return "/lib/ld-linux.so.2";
+      }
+  } else if (Arch == llvm::Triple::sparc ||
              Arch == llvm::Triple::sparcel)
     return "/lib/ld-linux.so.2";
   else if (Arch == llvm::Triple::aarch64)
@@ -7970,14 +7977,34 @@ static std::string getLinuxDynamicLinker(const ArgList &Args,
         tools::arm::getARMFloatABI(ToolChain.getDriver(), Args, ToolChain.getTriple()) == "hard")
       return "/lib/ld-linux-armhf.so.3";
     else
-      return "/lib/ld-linux.so.3";
+      switch (ToolChain.getTriple().getEnvironment()) {
+        case llvm::Triple::Musl:
+        case llvm::Triple::MuslEABI:
+          return "/lib/ld-musl-arm.so.1";
+        case llvm::Triple::MuslEABIHF:
+          return "/lib/ld-musl-armhf.so.1";
+        case llvm::Triple::GNUEABIHF:
+          return "/lib/ld-linux-armhf.so.1";
+        default:
+          return "/lib/ld-linux.so.3";
+        }
   } else if (Arch == llvm::Triple::armeb || Arch == llvm::Triple::thumbeb) {
     // TODO: check which dynamic linker name.
     if (ToolChain.getTriple().getEnvironment() == llvm::Triple::GNUEABIHF ||
         tools::arm::getARMFloatABI(ToolChain.getDriver(), Args, ToolChain.getTriple()) == "hard")
       return "/lib/ld-linux-armhf.so.3";
     else
-      return "/lib/ld-linux.so.3";
+      switch (ToolChain.getTriple().getEnvironment()) {
+        case llvm::Triple::Musl:
+        case llvm::Triple::MuslEABI:
+          return "/lib/ld-musl-arm.so.1";
+        case llvm::Triple::MuslEABIHF:
+          return "/lib/ld-musl-armhf.so.1";
+        case llvm::Triple::GNUEABIHF:
+          return "/lib/ld-linux-armhf.so.1";
+        default:
+          return "/lib/ld-linux.so.3";
+        }
   } else if (Arch == llvm::Triple::mips || Arch == llvm::Triple::mipsel ||
              Arch == llvm::Triple::mips64 || Arch == llvm::Triple::mips64el) {
     StringRef CPUName;
@@ -8014,8 +8041,14 @@ static std::string getLinuxDynamicLinker(const ArgList &Args,
   else if (Arch == llvm::Triple::x86_64 &&
            ToolChain.getTriple().getEnvironment() == llvm::Triple::GNUX32)
     return "/libx32/ld-linux-x32.so.2";
-  else
-    return "/lib64/ld-linux-x86-64.so.2";
+  else {
+    switch (ToolChain.getTriple().getEnvironment()) {
+    case llvm::Triple::Musl:
+      return "/lib/ld-musl-x86_64.so.1";
+    default:
+      return "/lib64/ld-linux-x86-64.so.2";
+    }
+  }
 }
 
 static void AddRunTimeLibs(const ToolChain &TC, const Driver &D,
-- 
2.5.1