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Add valgrind-3.14.0-ppc64-lxvd2x.patch

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Mark Wielaard 2018-12-12 23:24:42 +01:00
parent 4483169069
commit 67a2524afc
2 changed files with 50 additions and 0 deletions
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47
valgrind-3.14.0-ppc64-lxvd2x.patch Normal file
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@ -0,0 +1,47 @@
commit b7d65cab4f3e9a6f66a496e723e53ed736c4d2e7
Author: Mark Wielaard <mark@klomp.org>
Date: Sun Dec 9 00:55:42 2018 +0100
Implement ppc64 lxvd2x as 128-bit load with double word swap for ppc64le.
This makes it possible for memcheck to know which part of the 128bit
vector is defined, even if the load is partly beyond an addressable block.
Partially resolves bug 386945.
diff --git a/VEX/priv/guest_ppc_toIR.c b/VEX/priv/guest_ppc_toIR.c
index a81dace..7af4973 100644
--- a/VEX/priv/guest_ppc_toIR.c
+++ b/VEX/priv/guest_ppc_toIR.c
@@ -20590,16 +20590,22 @@ dis_vx_load ( UInt theInstr )
}
case 0x34C: // lxvd2x
{
- IROp addOp = ty == Ity_I64 ? Iop_Add64 : Iop_Add32;
- IRExpr * high, *low;
- ULong ea_off = 8;
- IRExpr* high_addr;
+ IRExpr *t128;
DIP("lxvd2x %d,r%u,r%u\n", XT, rA_addr, rB_addr);
- high = load( Ity_I64, mkexpr( EA ) );
- high_addr = binop( addOp, mkexpr( EA ), ty == Ity_I64 ? mkU64( ea_off )
- : mkU32( ea_off ) );
- low = load( Ity_I64, high_addr );
- putVSReg( XT, binop( Iop_64HLtoV128, high, low ) );
+ t128 = load( Ity_V128, mkexpr( EA ) );
+
+ /* The data in the vec register should be in big endian order.
+ So if we just did a little endian load then swap around the
+ high and low double words. */
+ if (host_endness == VexEndnessLE) {
+ IRTemp high = newTemp(Ity_I64);
+ IRTemp low = newTemp(Ity_I64);
+ assign( high, unop(Iop_V128HIto64, t128) );
+ assign( low, unop(Iop_V128to64, t128) );
+ t128 = binop( Iop_64HLtoV128, mkexpr (low), mkexpr (high) );
+ }
+
+ putVSReg( XT, t128 );
break;
}
case 0x14C: // lxvdsx

3
valgrind.spec
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@ -139,6 +139,7 @@ Patch18: valgrind-3.14.0-final_tidyup.patch
# See also patches 10 to 16 (yes, there are this many...)
Patch19: valgrind-3.14.0-ppc64-ldbrx.patch
Patch20: valgrind-3.14.0-ppc64-unaligned-words.patch
Patch21: valgrind-3.14.0-ppc64-lxvd2x.patch
%if %{build_multilib}
# Ensure glibc{,-devel} is installed for both multilib arches
@ -292,6 +293,7 @@ Valgrind User Manual for details.
%patch18 -p1
%patch19 -p1
%patch20 -p1
%patch21 -p1
%build
CC=gcc
@ -530,6 +532,7 @@ fi
- Add valgrind-3.14.0-final_tidyup.patch
- Add valgrind-3.14.0-ppc64-ldbrx.patch
- Add valgrind-3.14.0-ppc64-unaligned-words.patch
- Add valgrind-3.14.0-ppc64-lxvd2x.patch
* Sat Dec 1 2018 Mark Wielaard <mjw@fedoraproject.org> - 3.14.0.5
- Add valgrind-3.14.0-wcsncmp.patch (#1645971)