From cd50a82701f113f26b14850cca88291e77f0a44b Mon Sep 17 00:00:00 2001 From: "A. Wilcox" Date: Tue, 22 Nov 2022 01:36:05 -0600 Subject: user/llvm8: Move to legacy/ We don't need LLVM 8 in-tree any more. The last dependent was Qt Creator. LLVM 14 is the new hotness. Closes: #460, #871 --- legacy/llvm8/more-secure-plt.patch | 145 +++++++++++++++++++++++++++++++++++++ 1 file changed, 145 insertions(+) create mode 100644 legacy/llvm8/more-secure-plt.patch (limited to 'legacy/llvm8/more-secure-plt.patch') diff --git a/legacy/llvm8/more-secure-plt.patch b/legacy/llvm8/more-secure-plt.patch new file mode 100644 index 000000000..8b18a6db2 --- /dev/null +++ b/legacy/llvm8/more-secure-plt.patch @@ -0,0 +1,145 @@ +--- llvm/lib/Target/PowerPC/PPCISelLowering.cpp ++++ llvm/lib/Target/PowerPC/PPCISelLowering.cpp +@@ -2769,8 +2769,12 @@ SDValue PPCTargetLowering::LowerGlobalTLSAddress(SDValue Op, + SDValue GOTReg = DAG.getRegister(PPC::X2, MVT::i64); + GOTPtr = DAG.getNode(PPCISD::ADDIS_GOT_TPREL_HA, dl, + PtrVT, GOTReg, TGA); +- } else +- GOTPtr = DAG.getNode(PPCISD::PPC32_GOT, dl, PtrVT); ++ } else { ++ if (isPositionIndependent()) ++ GOTPtr = DAG.getNode(PPCISD::PPC32_PICGOT, dl, PtrVT); ++ else ++ GOTPtr = DAG.getNode(PPCISD::PPC32_GOT, dl, PtrVT); ++ } + SDValue TPOffset = DAG.getNode(PPCISD::LD_GOT_TPREL_L, dl, + PtrVT, TGA, GOTPtr); + return DAG.getNode(PPCISD::ADD_TLS, dl, PtrVT, TPOffset, TGATLS); +@@ -4941,7 +4945,8 @@ PrepareCall(SelectionDAG &DAG, SDValue &Callee, SDValue &InFlag, SDValue &Chain, + if (auto *G = dyn_cast(Callee)) + GV = G->getGlobal(); + bool Local = TM.shouldAssumeDSOLocal(*Mod, GV); +- bool UsePlt = !Local && Subtarget.isTargetELF() && !isPPC64; ++ bool UsePlt = !Local && Subtarget.isTargetELF() && !isPPC64 && ++ TM.isPositionIndependent(); + + if (isFunctionGlobalAddress(Callee)) { + GlobalAddressSDNode *G = cast(Callee); +--- llvm/lib/Target/PowerPC/PPCSubtarget.cpp ++++ llvm/lib/Target/PowerPC/PPCSubtarget.cpp +@@ -138,7 +138,8 @@ void PPCSubtarget::initSubtargetFeatures(StringRef CPU, StringRef FS) { + if (isDarwin()) + HasLazyResolverStubs = true; + +- if (TargetTriple.isOSNetBSD() || TargetTriple.isOSOpenBSD()) ++ if (TargetTriple.isOSNetBSD() || TargetTriple.isOSOpenBSD() || ++ TargetTriple.isMusl()) + SecurePlt = true; + + if (HasSPE && IsPPC64) +--- llvm/test/CodeGen/PowerPC/2008-10-28-f128-i32.ll ++++ llvm/test/CodeGen/PowerPC/2008-10-28-f128-i32.ll +@@ -62,7 +62,7 @@ define i64 @__fixunstfdi(ppc_fp128 %a) nounwind readnone { + ; CHECK-NEXT: lfd 4, 328(1) + ; CHECK-NEXT: fmr 1, 31 + ; CHECK-NEXT: fmr 2, 30 +-; CHECK-NEXT: bl __gcc_qmul@PLT ++; CHECK-NEXT: bl __gcc_qmul + ; CHECK-NEXT: lis 3, 16864 + ; CHECK-NEXT: stfd 1, 280(1) + ; CHECK-NEXT: fmr 29, 1 +@@ -84,7 +84,7 @@ define i64 @__fixunstfdi(ppc_fp128 %a) nounwind readnone { + ; CHECK-NEXT: lfd 4, 360(1) + ; CHECK-NEXT: lfd 1, 352(1) + ; CHECK-NEXT: lfd 2, 344(1) +-; CHECK-NEXT: bl __gcc_qsub@PLT ++; CHECK-NEXT: bl __gcc_qsub + ; CHECK-NEXT: mffs 0 + ; CHECK-NEXT: mtfsb1 31 + ; CHECK-NEXT: lis 3, .LCPI0_1@ha +@@ -117,7 +117,7 @@ define i64 @__fixunstfdi(ppc_fp128 %a) nounwind readnone { + ; CHECK-NEXT: .LBB0_5: # %bb1 + ; CHECK-NEXT: li 4, 0 + ; CHECK-NEXT: mr 3, 30 +-; CHECK-NEXT: bl __floatditf@PLT ++; CHECK-NEXT: bl __floatditf + ; CHECK-NEXT: lis 3, 17392 + ; CHECK-NEXT: stfd 1, 208(1) + ; CHECK-NEXT: fmr 29, 1 +@@ -140,7 +140,7 @@ define i64 @__fixunstfdi(ppc_fp128 %a) nounwind readnone { + ; CHECK-NEXT: lfd 4, 232(1) + ; CHECK-NEXT: lfd 1, 224(1) + ; CHECK-NEXT: lfd 2, 216(1) +-; CHECK-NEXT: bl __gcc_qadd@PLT ++; CHECK-NEXT: bl __gcc_qadd + ; CHECK-NEXT: blt 2, .LBB0_7 + ; CHECK-NEXT: # %bb.6: # %bb1 + ; CHECK-NEXT: fmr 2, 28 +@@ -163,7 +163,7 @@ define i64 @__fixunstfdi(ppc_fp128 %a) nounwind readnone { + ; CHECK-NEXT: stw 3, 248(1) + ; CHECK-NEXT: lfd 3, 256(1) + ; CHECK-NEXT: lfd 4, 248(1) +-; CHECK-NEXT: bl __gcc_qsub@PLT ++; CHECK-NEXT: bl __gcc_qsub + ; CHECK-NEXT: stfd 2, 176(1) + ; CHECK-NEXT: fcmpu 0, 2, 27 + ; CHECK-NEXT: stfd 1, 168(1) +@@ -205,7 +205,7 @@ define i64 @__fixunstfdi(ppc_fp128 %a) nounwind readnone { + ; CHECK-NEXT: lfd 4, 72(1) + ; CHECK-NEXT: lfd 1, 64(1) + ; CHECK-NEXT: lfd 2, 56(1) +-; CHECK-NEXT: bl __gcc_qsub@PLT ++; CHECK-NEXT: bl __gcc_qsub + ; CHECK-NEXT: mffs 0 + ; CHECK-NEXT: mtfsb1 31 + ; CHECK-NEXT: lis 3, .LCPI0_2@ha +@@ -260,7 +260,7 @@ define i64 @__fixunstfdi(ppc_fp128 %a) nounwind readnone { + ; CHECK-NEXT: lfd 4, 136(1) + ; CHECK-NEXT: lfd 1, 128(1) + ; CHECK-NEXT: lfd 2, 120(1) +-; CHECK-NEXT: bl __gcc_qsub@PLT ++; CHECK-NEXT: bl __gcc_qsub + ; CHECK-NEXT: mffs 0 + ; CHECK-NEXT: mtfsb1 31 + ; CHECK-NEXT: lis 3, .LCPI0_0@ha +--- llvm/test/CodeGen/PowerPC/2010-02-12-saveCR.ll ++++ llvm/test/CodeGen/PowerPC/2010-02-12-saveCR.ll +@@ -11,7 +11,7 @@ entry: + ; CHECK-DAG: ori [[T2:[0-9]+]], [[T2]], 34492 + ; CHECK-DAG: stwx [[T1]], 1, [[T2]] + ; CHECK-DAG: addi 3, 1, 28 +-; CHECK: bl bar@PLT ++; CHECK: bl bar + %x = alloca [100000 x i8] ; <[100000 x i8]*> [#uses=1] + %"alloca point" = bitcast i32 0 to i32 ; [#uses=0] + %x1 = bitcast [100000 x i8]* %x to i8* ; [#uses=1] +--- llvm/test/CodeGen/PowerPC/available-externally.ll ++++ llvm/test/CodeGen/PowerPC/available-externally.ll +@@ -14,7 +14,7 @@ target triple = "powerpc-unknown-linux-gnu" + define i32 @foo(i64 %x) nounwind { + entry: + ; STATIC: foo: +-; STATIC: bl exact_log2@PLT ++; STATIC: bl exact_log2 + ; STATIC: blr + + ; PIC: foo: +--- llvm/test/CodeGen/PowerPC/stubs.ll ++++ llvm/test/CodeGen/PowerPC/stubs.ll +@@ -6,4 +6,4 @@ entry: + } + + ; CHECK: test1: +-; CHECK: bl __floatditf@PLT ++; CHECK: bl __floatditf +--- llvm/test/CodeGen/PowerPC/umulo-128-legalisation-lowering.ll ++++ llvm/test/CodeGen/PowerPC/umulo-128-legalisation-lowering.ll +@@ -72,7 +72,7 @@ define { i128, i8 } @muloti_test(i128 %l, i128 %r) unnamed_addr #0 { + ; PPC32-NEXT: mr 28, 9 + ; PPC32-NEXT: mr 23, 6 + ; PPC32-NEXT: mr 24, 5 +-; PPC32-NEXT: bl __multi3@PLT ++; PPC32-NEXT: bl __multi3 + ; PPC32-NEXT: mr 7, 4 + ; PPC32-NEXT: mullw 4, 24, 30 + ; PPC32-NEXT: mullw 8, 29, 23 -- cgit v1.2.3-70-g09d2