1 files changed, 70 insertions, 0 deletions
diff --git a/user/clang/secure-plt.patch b/user/clang/secure-plt.patch
new file mode 100644
index 000000000..c1b4cb1de
--- /dev/null
+++ b/user/clang/secure-plt.patch
@@ -0,0 +1,70 @@
+Index: cfe/include/clang/Driver/Options.td
+===================================================================
+--- cfe/include/clang/Driver/Options.td
++++ cfe/include/clang/Driver/Options.td
+@@ -1957,6 +1957,7 @@
+ def mno_altivec : Flag<["-"], "mno-altivec">, Group<m_ppc_Features_Group>;
+ def mvsx : Flag<["-"], "mvsx">, Group<m_ppc_Features_Group>;
+ def mno_vsx : Flag<["-"], "mno-vsx">, Group<m_ppc_Features_Group>;
++def msecure_plt : Flag<["-"], "msecure-plt">, Group<m_ppc_Features_Group>;
+ def mpower8_vector : Flag<["-"], "mpower8-vector">,
+     Group<m_ppc_Features_Group>;
+ def mno_power8_vector : Flag<["-"], "mno-power8-vector">,
+Index: cfe/lib/Driver/ToolChains/Arch/PPC.h
+===================================================================
+--- cfe/lib/Driver/ToolChains/Arch/PPC.h
++++ cfe/lib/Driver/ToolChains/Arch/PPC.h
+@@ -29,10 +29,17 @@
+   Hard,
+ };
+ 
++enum class ReadGOTPtrMode {
++  Bss,
++  SecurePlt,
++};
++
+ FloatABI getPPCFloatABI(const Driver &D, const llvm::opt::ArgList &Args);
+ 
+ std::string getPPCTargetCPU(const llvm::opt::ArgList &Args);
+ const char *getPPCAsmModeForCPU(StringRef Name);
++ReadGOTPtrMode getPPCReadGOTPtrMode(const Driver &D,
++	                                const llvm::opt::ArgList &Args);
+ 
+ void getPPCTargetFeatures(const Driver &D, const llvm::Triple &Triple,
+                           const llvm::opt::ArgList &Args,
+Index: cfe/lib/Driver/ToolChains/Arch/PPC.cpp
+===================================================================
+--- cfe/lib/Driver/ToolChains/Arch/PPC.cpp
++++ cfe/lib/Driver/ToolChains/Arch/PPC.cpp
+@@ -106,6 +106,16 @@
+   ppc::FloatABI FloatABI = ppc::getPPCFloatABI(D, Args);
+   if (FloatABI == ppc::FloatABI::Soft)
+     Features.push_back("-hard-float");
++
++  ppc::ReadGOTPtrMode ReadGOT = ppc::getPPCReadGOTPtrMode(D, Args);
++  if (ReadGOT == ppc::ReadGOTPtrMode::SecurePlt)
++    Features.push_back("+secure-plt");
++}
++
++ppc::ReadGOTPtrMode ppc::getPPCReadGOTPtrMode(const Driver &D, const ArgList &Args) {
++  if (Args.getLastArg(options::OPT_msecure_plt))
++    return ppc::ReadGOTPtrMode::SecurePlt;
++  return ppc::ReadGOTPtrMode::Bss;
+ }
+ 
+ ppc::FloatABI ppc::getPPCFloatABI(const Driver &D, const ArgList &Args) {
+Index: cfe/test/Driver/ppc-features.cpp
+===================================================================
+--- cfe/test/Driver/ppc-features.cpp
++++ cfe/test/Driver/ppc-features.cpp
+@@ -22,6 +22,10 @@
+ // RUN: %clang -target powerpc-unknown-linux-gnu %s -msoft-float -mhard-float -### -o %t.o 2>&1 | FileCheck --check-prefix=CHECK-SOFTHARD %s
+ // CHECK-SOFTHARD-NOT: "-target-feature" "-hard-float"
+ 
++// check -msecure-plt option for ppc32
++// RUN: %clang -target powerpc-unknown-linux-gnu -msecure-plt %s  -### -o %t.o 2>&1 | FileCheck --check-prefix=CHECK-SECUREPLT %s
++// CHECK-SECUREPLT: "-target-feature" "+secure-plt"
++
+ // check -mfloat-abi=x option
+ // RUN: %clang -target powerpc-unknown-linux-gnu %s -mfloat-abi=x -### -o %t.o 2>&1 | FileCheck --check-prefix=CHECK-ERRMSG %s
+ // CHECK-ERRMSG: error: invalid float ABI '-mfloat-abi=x'