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Stub FXSave and FXRStor instructions. Necessary for launching dynamic apps from ld.so

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Ryan Houdek authored and Stefanos Kornilios Mitsis Poiitidis committed 2020-03-06 07:52:34 +02:00
1 parent febd707634
commit 3e4743512d
3 files changed
+17 -2
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Source/Interface/Core/OpcodeDispatcher.cpp
+12
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@@ -3150,6 +3150,14 @@ void OpDispatchBuilder::MOVDDUPOp(OpcodeArgs) {
StoreResult(Op, Res);
}
void OpDispatchBuilder::FXSaveOp(OpcodeArgs) {
}
void OpDispatchBuilder::FXRStoreOp(OpcodeArgs) {
}
#undef OpcodeArgs
void InstallOpcodeHandlers() {
@@ -3457,6 +3465,10 @@ constexpr uint16_t PF_F2 = 3;
{OPD(FEXCore::X86Tables::TYPE_GROUP_14, PF_66, 3), 1, &OpDispatchBuilder::PSRLDQ},
{OPD(FEXCore::X86Tables::TYPE_GROUP_14, PF_66, 7), 1, &OpDispatchBuilder::PSLL<16, true>},
// GROUP 15
{OPD(FEXCore::X86Tables::TYPE_GROUP_15, PF_NONE, 0), 1, &OpDispatchBuilder::FXSaveOp},
{OPD(FEXCore::X86Tables::TYPE_GROUP_15, PF_NONE, 1), 1, &OpDispatchBuilder::FXRStoreOp},
// GROUP 16
{OPD(FEXCore::X86Tables::TYPE_GROUP_16, PF_NONE, 0), 8, &OpDispatchBuilder::NOPOp},
{OPD(FEXCore::X86Tables::TYPE_GROUP_16, PF_F3, 0), 8, &OpDispatchBuilder::NOPOp},
Source/Interface/Core/OpcodeDispatcher.h
+3
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@@ -125,6 +125,9 @@ public:
template<size_t ElementSize>
void SHUFOp(OpcodeArgs);
void FXSaveOp(OpcodeArgs);
void FXRStoreOp(OpcodeArgs);
#undef OpcodeArgs
/**
Source/Interface/Core/X86Tables.cpp
+2 -2
View File
@@ -1294,8 +1294,8 @@ void InitializeInfoTables() {
{OPD(TYPE_GROUP_14, PF_F2, 7), 1, X86InstInfo{"", TYPE_INVALID, FLAGS_NONE, 0, nullptr}},
// GROUP 15
{OPD(TYPE_GROUP_15, PF_NONE, 0), 1, X86InstInfo{"FXSAVE", TYPE_MMX, FLAGS_NONE, 0, nullptr}}, // MMX/x87
{OPD(TYPE_GROUP_15, PF_NONE, 1), 1, X86InstInfo{"FXRSTOR", TYPE_MMX, FLAGS_NONE, 0, nullptr}}, // MMX/x87
{OPD(TYPE_GROUP_15, PF_NONE, 0), 1, X86InstInfo{"FXSAVE", TYPE_INST, FLAGS_MODRM | FLAGS_SF_MOD_DST, 0, nullptr}}, // MMX/x87
{OPD(TYPE_GROUP_15, PF_NONE, 1), 1, X86InstInfo{"FXRSTOR", TYPE_INST, FLAGS_MODRM, 0, nullptr}}, // MMX/x87
{OPD(TYPE_GROUP_15, PF_NONE, 2), 1, X86InstInfo{"LDMXCSR", TYPE_INST, FLAGS_MODRM | FLAGS_SF_MOD_DST | FLAGS_SF_MOD_MEM_ONLY, 0, nullptr}},
{OPD(TYPE_GROUP_15, PF_NONE, 3), 1, X86InstInfo{"STMXCSR", TYPE_INST, FLAGS_MODRM | FLAGS_SF_MOD_DST | FLAGS_SF_MOD_MEM_ONLY, 0, nullptr}},
{OPD(TYPE_GROUP_15, PF_NONE, 4), 1, X86InstInfo{"XSAVE", TYPE_PRIV, FLAGS_NONE, 0, nullptr}},