Add valgrind-3.18.1-ppc64-lxsibzx-lxsihzx.patch

valgrind-3.18.1-ppc64-lxsibzx-lxsihzx.patch

@@ -0,0 +1,60 @@
+commit 6e08ee95f7f1b1c3fd434fa380cc5b2cc3e3f7c7
+Author: Carl Love <cel@us.ibm.com>
+Date:   Fri Oct 29 16:30:33 2021 -0500
+
+    Bug 444571 - PPC, fix the lxsibzx and lxsihzx so they only load their respective sized data.
+    
+    The lxsibzx was doing a 64-bit load.  The result was initializing
+    additional bytes in the register that should not have been initialized.
+    The memcheck/tests/linux/dlclose_leak test detected the issue.  The
+    code generation uses lxsibzx and stxsibx with -mcpu=power9.  Previously
+    the lbz and stb instructions were generated.
+    
+    The same issue was noted and fixed with the lxsihzx instruction.  The
+    memcheck/tests/linux/badrw test now passes as well.
+    
+    https://bugs.kde.org/show_bug.cgi?id=444571
+
+diff --git a/VEX/priv/guest_ppc_toIR.c b/VEX/priv/guest_ppc_toIR.c
+index d90d566ed..8afd77490 100644
+--- a/VEX/priv/guest_ppc_toIR.c
++++ b/VEX/priv/guest_ppc_toIR.c
+@@ -25359,19 +25359,17 @@ dis_vx_load ( UInt prefix, UInt theInstr )
+ 
+       else
+          irx_addr = mkexpr( EA );
+-
+-      byte = load( Ity_I64, irx_addr );
++      /* byte load */
++      byte = load( Ity_I8, irx_addr );
+       putVSReg( XT, binop( Iop_64HLtoV128,
+-                            binop( Iop_And64,
+-                                   byte,
+-                                   mkU64( 0xFF ) ),
++                           unop( Iop_8Uto64, byte ),
+                            mkU64( 0 ) ) );
+       break;
+    }
+ 
+    case 0x32D: // lxsihzx
+    {
+-      IRExpr *byte;
++      IRExpr *hword;
+       IRExpr* irx_addr;
+ 
+       DIP("lxsihzx %u,r%u,r%u\n", (UInt)XT, rA_addr, rB_addr);
+@@ -25382,11 +25380,10 @@ dis_vx_load ( UInt prefix, UInt theInstr )
+       else
+          irx_addr = mkexpr( EA );
+ 
+-      byte = load( Ity_I64, irx_addr );
++      hword = load( Ity_I16, irx_addr );
+       putVSReg( XT, binop( Iop_64HLtoV128,
+-                            binop( Iop_And64,
+-                                   byte,
+-                                   mkU64( 0xFFFF ) ),
++                            unop( Iop_16Uto64,
++                                  hword ),
+                            mkU64( 0 ) ) );
+       break;
+    }

valgrind.spec

@@ -91,6 +91,9 @@ Patch6: valgrind-3.18.1-dhat-tests-copy.patch
 # KDE#444242 s390x: Sign-extend "relative long" offset in EXRL
 Patch7: valgrind-3.18.1-s390x-EXRL.patch
 
+# KDE#444571 - PPC, fix lxsibzx and lxsihzx
+Patch8: valgrind-3.18.1-ppc64-lxsibzx-lxsihzx.patch
+
 BuildRequires: make
 BuildRequires: glibc-devel
 
@@ -230,6 +233,7 @@ Valgrind User Manual for details.
 
 %patch6 -p1
 %patch7 -p1
+%patch8 -p1
 
 %build
 # LTO triggers undefined symbols in valgrind.  Valgrind has a --enable-lto
@@ -462,6 +466,7 @@ fi
 * Mon Nov  1 2021 Mark Wielaard <mjw@fedoraproject.org>
 - Add valgrind-3.18.1-dhat-tests-copy.patch
 - Add valgrind-3.18.1-s390x-EXRL.patch
+- Add valgrind-3.18.1-ppc64-lxsibzx-lxsihzx.patch
 
 * Fri Oct 15 2021 Mark Wielaard <mjw@fedoraproject.org> - 3.18.0-1
 - Update to upstream 3.18.1 final