1 files changed, 136 insertions, 0 deletions
diff --git a/main/llvm/llvm-alpine-linux.patch b/main/llvm/llvm-alpine-linux.patch
new file mode 100644
index 0000000000..8bef4b1777
--- /dev/null
+++ b/main/llvm/llvm-alpine-linux.patch
@@ -0,0 +1,136 @@
+--- a/include/llvm/ADT/Triple.h
++++ b/include/llvm/ADT/Triple.h
+@@ -117,7 +117,10 @@
+     EABI,
+     MachO,
+     Android,
+-    ELF
++    ELF,
++    Musl,
++    MuslEABI,
++    MuslEABIHF
+   };
+ 
+ private:
+--- a/lib/Support/Triple.cpp.orig
++++ b/lib/Support/Triple.cpp
+@@ -153,6 +153,9 @@ const char *Triple::getEnvironmentTypeName(EnvironmentType Kind) {
+   case MachO: return "macho";
+   case Android: return "android";
+   case ELF: return "elf";
++  case Musl: return "musl";
++  case MuslEABI: return "muslgnueabi";
++  case MuslEABIHF: return "muslgnueabihf";
+   }
+ 
+   llvm_unreachable("Invalid EnvironmentType!");
+@@ -305,6 +308,9 @@ static Triple::EnvironmentType parseEnvironment(StringRef EnvironmentName) {
+     .StartsWith("macho", Triple::MachO)
+     .StartsWith("android", Triple::Android)
+     .StartsWith("elf", Triple::ELF)
++    .StartsWith("muslgnueabihf", Triple::MuslEABIHF)
++    .StartsWith("muslgnueabi", Triple::MuslEABI)
++    .StartsWith("musl", Triple::Musl)
+     .Default(Triple::UnknownEnvironment);
+ }
+ 
+--- a/tools/clang/lib/Driver/ToolChains.cpp
++++ b/tools/clang/lib/Driver/ToolChains.cpp
+@@ -1118,20 +1118,23 @@ void Generic_GCC::GCCInstallationDetector::print(raw_ostream &OS) const {
+   static const char *const ARMTriples[] = { "arm-linux-gnueabi",
+                                             "arm-linux-androideabi" };
+   static const char *const ARMHFTriples[] = { "arm-linux-gnueabihf",
+-                                              "armv7hl-redhat-linux-gnueabi" };
++                                              "armv7hl-redhat-linux-gnueabi",
++                                              "armv6-alpine-linux-muslgnueabihf",
++                                              "armv7-alpine-linux-muslgnueabihf" };
+ 
+   static const char *const X86_64LibDirs[] = { "/lib64", "/lib" };
+   static const char *const X86_64Triples[] = {
+     "x86_64-linux-gnu", "x86_64-unknown-linux-gnu", "x86_64-pc-linux-gnu",
+     "x86_64-redhat-linux6E", "x86_64-redhat-linux", "x86_64-suse-linux",
+-    "x86_64-manbo-linux-gnu", "x86_64-linux-gnu", "x86_64-slackware-linux"
++    "x86_64-manbo-linux-gnu", "x86_64-linux-gnu", "x86_64-slackware-linux",
++    "x86_64-alpine-linux-musl"
+   };
+   static const char *const X86LibDirs[] = { "/lib32", "/lib" };
+   static const char *const X86Triples[] = {
+     "i686-linux-gnu", "i686-pc-linux-gnu", "i486-linux-gnu", "i386-linux-gnu",
+     "i386-redhat-linux6E", "i686-redhat-linux", "i586-redhat-linux",
+     "i386-redhat-linux", "i586-suse-linux", "i486-slackware-linux",
+-    "i686-montavista-linux"
++    "i686-montavista-linux", "i486-alpine-linux-musl"
+   };
+ 
+   static const char *const MIPSLibDirs[] = { "/lib" };
+@@ -2166,6 +2169,7 @@ Tool *Solaris::buildLinker() const {
+ /// Distribution (very bare-bones at the moment).
+ 
+ enum Distro {
++  AlpineLinux,
+   ArchLinux,
+   DebianLenny,
+   DebianSqueeze,
+@@ -2276,6 +2280,9 @@ static Distro DetectDistro(llvm::Triple::ArchType Arch) {
+   if (llvm::sys::fs::exists("/etc/arch-release"))
+     return ArchLinux;
+ 
++  if (llvm::sys::fs::exists("/etc/alpine-release"))
++    return AlpineLinux;
++
+   return UnknownDistro;
+ }
+ 
+--- a/tools/clang/lib/Driver/Tools.cpp
++++ b/tools/clang/lib/Driver/Tools.cpp
+@@ -6355,16 +6355,28 @@ static StringRef getLinuxDynamicLinker(const ArgList &Args,
+                                        const toolchains::Linux &ToolChain) {
+   if (ToolChain.getTriple().getEnvironment() == llvm::Triple::Android)
+     return "/system/bin/linker";
+-  else if (ToolChain.getArch() == llvm::Triple::x86)
+-    return "/lib/ld-linux.so.2";
+-  else if (ToolChain.getArch() == llvm::Triple::aarch64)
++  else if (ToolChain.getArch() == 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 (ToolChain.getArch() == llvm::Triple::aarch64)
+     return "/lib/ld-linux-aarch64.so.1";
+   else if (ToolChain.getArch() == llvm::Triple::arm ||
+            ToolChain.getArch() == llvm::Triple::thumb) {
+-    if (ToolChain.getTriple().getEnvironment() == llvm::Triple::GNUEABIHF)
++    switch (ToolChain.getTriple().getEnvironment()) {
++    case llvm::Triple::Musl:
++    case llvm::Triple::MuslEABI:
++      return "/lib/ld-musl-arm.so.3";
++    case llvm::Triple::MuslEABIHF:
++      return "/lib/ld-musl-armhf.so.3";
++    case llvm::Triple::GNUEABIHF:
+       return "/lib/ld-linux-armhf.so.3";
+-    else
++    default:
+       return "/lib/ld-linux.so.3";
++    }
+   } else if (ToolChain.getArch() == llvm::Triple::mips ||
+              ToolChain.getArch() == llvm::Triple::mipsel)
+     return "/lib/ld.so.1";
+@@ -6380,8 +6392,14 @@ static StringRef getLinuxDynamicLinker(const ArgList &Args,
+            ToolChain.getArch() == llvm::Triple::ppc64le ||
+            ToolChain.getArch() == llvm::Triple::systemz)
+     return "/lib64/ld64.so.1";
+-  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";
++    }
++  }
+ }
+ 
+ void gnutools::Link::ConstructJob(Compilation &C, const JobAction &JA,