Enable -fuse-init-array for Android X86/MIPS.

The dynamic linker of Android does not support .ctors/.dtors.
We should emit .init_array and .fini_array regardless the
gcc version.

NOTE: This patch does not affect the ARM backend, because
it is required to generate .init_array and .fini_array
for program targeting ARM AAPCS and AEABI.

llvm-svn: 168309

diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index b95b8fa..a56d37b 100644 (file)
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -2230,7 +2230,8 @@ Tool &Linux::SelectTool(const Compilation &C, const JobAction &JA,
 
 void Linux::addClangTargetOptions(ArgStringList &CC1Args) const {
   const Generic_GCC::GCCVersion &V = GCCInstallation.getVersion();
-  if (V >= Generic_GCC::GCCVersion::Parse("4.7.0"))
+  if (V >= Generic_GCC::GCCVersion::Parse("4.7.0") ||
+      getTriple().getEnvironment() == llvm::Triple::Android)
     CC1Args.push_back("-fuse-init-array");
 }
 

diff --git a/clang/test/Driver/constructors.c b/clang/test/Driver/constructors.c
index ca2cac2..71f24cf 100644 (file)
--- a/clang/test/Driver/constructors.c
+++ b/clang/test/Driver/constructors.c
@@ -10,5 +10,21 @@
 // RUN:     --sysroot=%S/Inputs/basic_linux_tree \
 // RUN:   | FileCheck --check-prefix=CHECK-GCC-4-6 %s
 
-
 // CHECK-GCC-4-6-NOT:  -fuse-init-array
+
+// RUN: %clang -no-canonical-prefixes %s -### -fsyntax-only 2>&1       \
+// RUN:     -target arm-unknown-linux-androideabi \
+// RUN:     --sysroot=%S/Inputs/basic_android_tree/sysroot \
+// RUN:   | FileCheck --check-prefix=CHECK-ANDROID %s
+
+// RUN: %clang -no-canonical-prefixes %s -### -fsyntax-only 2>&1       \
+// RUN:     -target mipsel-unknown-linux-android \
+// RUN:     --sysroot=%S/Inputs/basic_android_tree/sysroot \
+// RUN:   | FileCheck --check-prefix=CHECK-ANDROID %s
+
+// RUN: %clang -no-canonical-prefixes %s -### -fsyntax-only 2>&1       \
+// RUN:     -target i386-unknown-linux-android \
+// RUN:     --sysroot=%S/Inputs/basic_android_tree/sysroot \
+// RUN:   | FileCheck --check-prefix=CHECK-ANDROID %s
+
+// CHECK-ANDROID: -fuse-init-array