[PowerPC] Fix ELF interpreter name for powerpc64le-linux

On PowerPC LE the system uses the /lib64/ld64.so.2 dynamic linker name
instead of /lib64/ld64.so.1 (to indicate the ELFv2 ABI version).

This fixes the clang driver to pass the appropriate -dynamic-linker
setting, and adds some more tests to linux-ld.c.

llvm-svn: 211360

5 files changed, 26 insertions, 1 deletions

diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp
index 2f866215e18..a86f06ac9d0 100644
--- a/clang/lib/Driver/Tools.cpp
+++ b/clang/lib/Driver/Tools.cpp
@@ -6917,9 +6917,10 @@ static StringRef getLinuxDynamicLinker(const ArgList &Args,
   } else if (ToolChain.getArch() == llvm::Triple::ppc)
     return "/lib/ld.so.1";
   else if (ToolChain.getArch() == llvm::Triple::ppc64 ||
-           ToolChain.getArch() == llvm::Triple::ppc64le ||
            ToolChain.getArch() == llvm::Triple::systemz)
     return "/lib64/ld64.so.1";
+  else if (ToolChain.getArch() == llvm::Triple::ppc64le)
+    return "/lib64/ld64.so.2";
   else if (ToolChain.getArch() == llvm::Triple::sparcv9)
     return "/lib64/ld-linux.so.2";
   else
diff --git a/clang/test/Driver/Inputs/ubuntu_14.04_multiarch_tree/usr/lib/powerpc64le-linux-gnu/crt1.o b/clang/test/Driver/Inputs/ubuntu_14.04_multiarch_tree/usr/lib/powerpc64le-linux-gnu/crt1.o
new file mode 100644
index 00000000000..e69de29bb2d
--- /dev/null
+++ b/clang/test/Driver/Inputs/ubuntu_14.04_multiarch_tree/usr/lib/powerpc64le-linux-gnu/crt1.o
diff --git a/clang/test/Driver/Inputs/ubuntu_14.04_multiarch_tree/usr/lib/powerpc64le-linux-gnu/crti.o b/clang/test/Driver/Inputs/ubuntu_14.04_multiarch_tree/usr/lib/powerpc64le-linux-gnu/crti.o
new file mode 100644
index 00000000000..e69de29bb2d
--- /dev/null
+++ b/clang/test/Driver/Inputs/ubuntu_14.04_multiarch_tree/usr/lib/powerpc64le-linux-gnu/crti.o
diff --git a/clang/test/Driver/Inputs/ubuntu_14.04_multiarch_tree/usr/lib/powerpc64le-linux-gnu/crtn.o b/clang/test/Driver/Inputs/ubuntu_14.04_multiarch_tree/usr/lib/powerpc64le-linux-gnu/crtn.o
new file mode 100644
index 00000000000..e69de29bb2d
--- /dev/null
+++ b/clang/test/Driver/Inputs/ubuntu_14.04_multiarch_tree/usr/lib/powerpc64le-linux-gnu/crtn.o
diff --git a/clang/test/Driver/linux-ld.c b/clang/test/Driver/linux-ld.c
index c4a2e836b22..769be3c0662 100644
--- a/clang/test/Driver/linux-ld.c
+++ b/clang/test/Driver/linux-ld.c
@@ -347,6 +347,23 @@
 // CHECK-X86-64-UBUNTU-13-10-ARM: "{{.*}}/usr/lib/gcc-cross/arm-linux-gnueabi/4.7{{/|\\\\}}crtend.o"
 // CHECK-X86-64-UBUNTU-13-10-ARM: "{{.*}}/usr/lib/gcc-cross/arm-linux-gnueabi/4.7/../../../../arm-linux-gnueabi/lib/../lib{{/|\\\\}}crtn.o"
 //
+// Check Ubuntu 14.04 on powerpc64le.
+// RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
+// RUN:     --target=powerpc64le-unknown-linux-gnu \
+// RUN:     --sysroot=%S/Inputs/ubuntu_14.04_multiarch_tree \
+// RUN:   | FileCheck --check-prefix=CHECK-UBUNTU-14-04-PPC64LE %s
+// CHECK-UBUNTU-14-04-PPC64LE: "{{.*}}ld{{(.exe)?}}" "--sysroot=[[SYSROOT:[^"]+]]"
+// CHECK-UBUNTU-14-04-PPC64LE: "{{.*}}/usr/lib/gcc/powerpc64le-linux-gnu/4.8/../../../powerpc64le-linux-gnu{{/|\\\\}}crt1.o"
+// CHECK-UBUNTU-14-04-PPC64LE: "{{.*}}/usr/lib/gcc/powerpc64le-linux-gnu/4.8/../../../powerpc64le-linux-gnu{{/|\\\\}}crti.o"
+// CHECK-UBUNTU-14-04-PPC64LE: "{{.*}}/usr/lib/gcc/powerpc64le-linux-gnu/4.8{{/|\\\\}}crtbegin.o"
+// CHECK-UBUNTU-14-04-PPC64LE: "-L[[SYSROOT]]/usr/lib/gcc/powerpc64le-linux-gnu/4.8"
+// CHECK-UBUNTU-14-04-PPC64LE: "-L[[SYSROOT]]/usr/lib/gcc/powerpc64le-linux-gnu/4.8/../../../powerpc64le-linux-gnu"
+// CHECK-UBUNTU-14-04-PPC64LE: "-L[[SYSROOT]]/lib/powerpc64le-linux-gnu"
+// CHECK-UBUNTU-14-04-PPC64LE: "-L[[SYSROOT]]/usr/lib/powerpc64le-linux-gnu"
+// CHECK-UBUNTU-14-04-PPC64LE: "-L[[SYSROOT]]/usr/lib/gcc/powerpc64le-linux-gnu/4.8/../../.."
+// CHECK-UBUNTU-14-04-PPC64LE: "{{.*}}/usr/lib/gcc/powerpc64le-linux-gnu/4.8{{/|\\\\}}crtend.o"
+// CHECK-UBUNTU-14-04-PPC64LE: "{{.*}}/usr/lib/gcc/powerpc64le-linux-gnu/4.8/../../../powerpc64le-linux-gnu{{/|\\\\}}crtn.o"
+//
 // Check fedora 18 on arm.
 // RUN: %clang -no-canonical-prefixes %s -### -o %t.o 2>&1 \
 // RUN:     --target=armv7-unknown-linux-gnueabihf \
@@ -422,6 +439,13 @@
 // CHECK-ARM-HF: "-m" "armelf_linux_eabi"
 // CHECK-ARM-HF: "-dynamic-linker" "{{.*}}/lib/ld-linux-armhf.so.3"
 //
+// RUN: %clang %s -### -o %t.o 2>&1 \
+// RUN:     --target=powerpc64le-linux-gnu \
+// RUN:   | FileCheck --check-prefix=CHECK-PPC64LE %s
+// CHECK-PPC64LE: "{{.*}}ld{{(.exe)?}}"
+// CHECK-PPC64LE: "-m" "elf64lppc"
+// CHECK-PPC64LE: "-dynamic-linker" "{{.*}}/lib64/ld64.so.2"
+//
 // Check that we do not pass --hash-style=gnu and --hash-style=both to linker
 // and provide correct path to the dynamic linker and emulation mode when build
 // for MIPS platforms.