[Driver] Add driver support for Fuchsia
Provide toolchain and tool support for Fuchsia operating system.
Fuchsia uses compiler-rt as the runtime library and libc++, libc++abi
and libunwind as the C++ standard library. lld is used as a default
linker.
Differential Revision: https://reviews.llvm.org/D25117
llvm-svn: 283420
diff --git a/clang/test/Driver/fuchsia.c b/clang/test/Driver/fuchsia.c
new file mode 100644
index 0000000..026d8a1
--- /dev/null
+++ b/clang/test/Driver/fuchsia.c
@@ -0,0 +1,40 @@
+// RUN: %clang %s -### --target=x86_64-unknown-fuchsia \
+// RUN: --sysroot=%S/platform 2>&1 | FileCheck %s
+// CHECK: {{.*}}clang{{.*}}" "-cc1"
+// CHECK: "-fuse-init-array"
+// CHECK: "-isysroot" "[[SYSROOT:[^"]+]]"
+// CHECK: "-internal-externc-isystem" "[[SYSROOT]]{{/|\\\\}}include"
+// CHECK: {{.*}}lld{{.*}}" "-flavor" "gnu"
+// CHECK: "--sysroot=[[SYSROOT]]"
+// CHECK: "-pie"
+// CHECK: "--build-id"
+// CHECK: "-dynamic-linker" "ld.so.1"
+// CHECK: Scrt1.o
+// CHECK-NOT: crti.o
+// CHECK-NOT: crtbegin.o
+// CHECK: "-L[[SYSROOT]]/lib"
+// CHECK: "{{.*[/\\]}}libclang_rt.builtins-x86_64.a"
+// CHECK: "-lc"
+// CHECK-NOT: crtend.o
+// CHECK-NOT: crtn.o
+
+// RUN: %clang %s -### --target=x86_64-unknown-fuchsia -rtlib=libgcc 2>&1 \
+// RUN: | FileCheck %s -check-prefix=CHECK-RTLIB
+// CHECK-RTLIB: error: invalid runtime library name in argument '-rtlib=libgcc'
+
+// RUN: %clang %s -### --target=x86_64-unknown-fuchsia -static 2>&1 \
+// RUN: | FileCheck %s -check-prefix=CHECK-STATIC
+// CHECK-STATIC: "-Bstatic"
+// CHECK-STATIC: "-Bdynamic"
+// CHECK-STATIC: "-lc"
+
+// RUN: %clang %s -### --target=x86_64-unknown-fuchsia -shared 2>&1 \
+// RUN: | FileCheck %s -check-prefix=CHECK-SHARED
+// CHECK-SHARED-NOT: "-pie"
+// CHECK-SHARED: "-shared"
+
+// RUN: %clang %s -### --target=x86_64-unknown-fuchsia -r 2>&1 \
+// RUN: | FileCheck %s -check-prefix=CHECK-RELOCATABLE
+// CHECK-RELOCATABLE-NOT: "-pie"
+// CHECK-RELOCATABLE-NOT: "--build-id"
+// CHECK-RELOCATABLE: "-r"