RuntimeLibcalls: Move __stack_smash_handler config to tablegen

Author: arsenm

llvm/include/llvm/IR/RuntimeLibcalls.td

@@ -1151,6 +1151,7 @@ defvar LibmHasFrexpF128 = LibcallImpls<(add frexp_f128), isNotOSWindowsOrIsCygwi
 defvar LibmHasLdexpF128 = LibcallImpls<(add ldexp_f128), isNotOSWindowsOrIsCygwinMinGW>;
 
 defvar has__stack_chk_fail = LibcallImpls<(add __stack_chk_fail), isNotOSOpenBSD>;
+defvar has__stack_smash_handler = LibcallImpls<(add __stack_smash_handler), isOSOpenBSD>;
 
 //===----------------------------------------------------------------------===//
 // Objective-C Runtime Libcalls
@@ -1229,7 +1230,7 @@ def AArch64SystemLibrary : SystemRuntimeLibrary<
        DarwinExp10, DarwinSinCosStret,
        LibmHasSinCosF32, LibmHasSinCosF64, LibmHasSinCosF128,
        DefaultLibmExp10,
-       has__stack_chk_fail)
+       has__stack_chk_fail, has__stack_smash_handler)
 >;
 
 // Prepend a # to every name
@@ -1506,7 +1507,7 @@ def ARMSystemLibrary
            LibcallImpls<(add __divmodsi4, __udivmodsi4),
                         RuntimeLibcallPredicate<[{TT.isOSBinFormatMachO() &&
                                                   (!TT.isiOS() || !TT.isOSVersionLT(5, 0))}]>>,
-           has__stack_chk_fail)> {
+           has__stack_chk_fail, has__stack_smash_handler)> {
   let DefaultLibcallCallingConv = LibcallCallingConv<[{
      (!TT.isOSDarwin() && !TT.isiOS() && !TT.isWatchOS() && !TT.isDriverKit()) ?
         (FloatABI == FloatABI::Hard ? CallingConv::ARM_AAPCS_VFP
@@ -2015,7 +2016,7 @@ def PPCSystemLibrary
            LibmHasSinCosPPCF128,
            AvailableIf<memcpy, isNotAIX>,
            LibcallImpls<(add Int128RTLibcalls), isPPC64>,
-           has__stack_chk_fail)>;
+           has__stack_chk_fail, has__stack_smash_handler)>;
 
 //===----------------------------------------------------------------------===//
 // RISCV Runtime Libcalls
@@ -2030,7 +2031,7 @@ def RISCVSystemLibrary
            exp10f, exp10, exp10l_f128,
            __riscv_flush_icache,
            LibcallImpls<(add Int128RTLibcalls), isRISCV64>,
-           has__stack_chk_fail)>;
+           has__stack_chk_fail, has__stack_smash_handler)>;
 
 //===----------------------------------------------------------------------===//
 // SPARC Runtime Libcalls
@@ -2098,7 +2099,7 @@ def SPARCSystemLibrary
        LibcallImpls<(add _Q_qtoll, _Q_qtoull, _Q_lltoq, _Q_ulltoq), isSPARC32>,
        LibcallImpls<(add SPARC64_MulDivCalls, Int128RTLibcalls), isSPARC64>,
        LibmHasSinCosF32, LibmHasSinCosF64, LibmHasSinCosF128,
-       has__stack_chk_fail)
+       has__stack_chk_fail, has__stack_smash_handler)
 >;
 
 //===----------------------------------------------------------------------===//
@@ -2159,7 +2160,8 @@ defvar X86CommonLibcalls =
        // FIXME: MSVCRT doesn't have powi. The f128 case is added as a
        // hack for one test relying on it.
        __powitf2_f128,
-       has__stack_chk_fail
+       has__stack_chk_fail,
+       has__stack_smash_handler
 );
 
 defvar Windows32DivRemMulCalls =
@@ -2328,5 +2330,6 @@ def LegacyDefaultSystemLibrary
          exp10f, exp10, exp10l_f128,
          __powisf2, __powidf2, __powitf2_f128,
          LibcallImpls<(add Int128RTLibcalls), isArch64Bit>,
-         has__stack_chk_fail
+         has__stack_chk_fail,
+         has__stack_smash_handler
 )>;

llvm/lib/IR/RuntimeLibcalls.cpp

@@ -78,9 +78,6 @@ void RuntimeLibcallsInfo::initLibcalls(const Triple &TT,
       setLibcallImpl(RTLIB::UNWIND_RESUME, RTLIB::_Unwind_SjLj_Resume);
   }
 
-  if (TT.isOSOpenBSD())
-    setLibcallImpl(RTLIB::STACK_SMASH_HANDLER, RTLIB::__stack_smash_handler);
-
   if (TT.isARM() || TT.isThumb()) {
     setARMLibcallNames(*this, TT, FloatABI, EABIVersion);
     return;