[llvm] r237733 - [DWARF parser] Make DWARF parser more robust against missing compile/type units.
Alexey Samsonov
vonosmas at gmail.com
Thu May 28 17:01:31 PDT 2015
On Tue, May 26, 2015 at 1:35 PM, Filipe Cabecinhas <filcab at gmail.com> wrote:
> Throwing afl (or libFuzzer) at llvm-dwarfdump might do a lot. :)
Sure it does. We should first make significant improvements to LLVMObject
library so that it doesn't crash with report_fatal_error() if it's given a
broken executable. Luckily, we have all this std::error_code machinery.
However, we use it far less frequently than we should. Trying to tackle
this task
resulted in http://reviews.llvm.org/D10111.
>
>
> On Tuesday, May 26, 2015, Alexey Samsonov <vonosmas at gmail.com> wrote:
>
>> Fair enough. I will add such an input then. I guess there will be even
>> more once of those once/if I write llvm-dwarfdump-fuzzer :)
>>
>> On Tue, May 26, 2015 at 1:30 PM, Filipe Cabecinhas <filcab at gmail.com>
>> wrote:
>>
>>> If we want to be sure we're handling the errors correctly, we want
>>> invalid input. There's a bunch of them for macho
>>> (tests/Object/Inputs/macho{,64}-invalid-*) and bitcode
>>> (tests/Bitcode/Inputs/invalid-*).
>>>
>>> Filipe
>>>
>>>
>>> On Tuesday, May 26, 2015, Eric Christopher <echristo at gmail.com> wrote:
>>>
>>>> Could have a binary input?
>>>>
>>>> -eric
>>>>
>>>> On Tue, May 26, 2015 at 12:46 PM Alexey Samsonov <vonosmas at gmail.com>
>>>> wrote:
>>>>
>>>>> At this stage that would require producing a broken DWARF file,
>>>>> possibly by manually flipping bits in the output of clang/gcc. Do we really
>>>>> want this in the tree?
>>>>>
>>>>> On Tue, May 26, 2015 at 7:06 AM, Rafael Espíndola <
>>>>> rafael.espindola at gmail.com> wrote:
>>>>>
>>>>>> testcase?
>>>>>>
>>>>>> On 19 May 2015 at 17:54, Alexey Samsonov <vonosmas at gmail.com> wrote:
>>>>>> > Author: samsonov
>>>>>> > Date: Tue May 19 16:54:32 2015
>>>>>> > New Revision: 237733
>>>>>> >
>>>>>> > URL: http://llvm.org/viewvc/llvm-project?rev=237733&view=rev
>>>>>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_viewvc_llvm-2Dproject-3Frev-3D237733-26view-3Drev&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=mQ4LZ2PUj9hpadE3cDHZnIdEwhEBrbAstXeMaFoB9tg&m=i0RikhEETYZDN7aNgdqzao5KZVbb44wCscGgxV85vOo&s=WJCv3-sOyU-kNy7q14dfet81O5FN3uwSBCHo7z8kJxI&e=>
>>>>>> > Log:
>>>>>> > [DWARF parser] Make DWARF parser more robust against missing
>>>>>> compile/type units.
>>>>>> >
>>>>>> > DWARF standard claims that each compilation/type unit header in
>>>>>> > .debug_info/.debug_types section must be followed by corresponding
>>>>>> > compile/type unit DIE, possibly with its children. Two situations
>>>>>> > are possible:
>>>>>> >
>>>>>> > * compile/type unit DIE is missing because DWARF producer failed to
>>>>>> > emit it.
>>>>>> > * DWARF parser failed to parse unit DIE correctly, for instance if
>>>>>> it
>>>>>> > contains some unsupported attributes (see r237721, for instance).
>>>>>> >
>>>>>> > In either of these cases, the library, and the tools that use it
>>>>>> > (llvm-dwarfdump, llvm-symbolizer) should not crash. Insert
>>>>>> appropriate
>>>>>> > checks to protect against this.
>>>>>> >
>>>>>> > Modified:
>>>>>> > llvm/trunk/include/llvm/DebugInfo/DWARF/DWARFUnit.h
>>>>>> > llvm/trunk/lib/DebugInfo/DWARF/DWARFCompileUnit.cpp
>>>>>> > llvm/trunk/lib/DebugInfo/DWARF/DWARFContext.cpp
>>>>>> > llvm/trunk/lib/DebugInfo/DWARF/DWARFTypeUnit.cpp
>>>>>> > llvm/trunk/lib/DebugInfo/DWARF/DWARFUnit.cpp
>>>>>> > llvm/trunk/tools/dsymutil/DwarfLinker.cpp
>>>>>> >
>>>>>> > Modified: llvm/trunk/include/llvm/DebugInfo/DWARF/DWARFUnit.h
>>>>>> > URL:
>>>>>> http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/DebugInfo/DWARF/DWARFUnit.h?rev=237733&r1=237732&r2=237733&view=diff
>>>>>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_viewvc_llvm-2Dproject_llvm_trunk_include_llvm_DebugInfo_DWARF_DWARFUnit.h-3Frev-3D237733-26r1-3D237732-26r2-3D237733-26view-3Ddiff&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=mQ4LZ2PUj9hpadE3cDHZnIdEwhEBrbAstXeMaFoB9tg&m=i0RikhEETYZDN7aNgdqzao5KZVbb44wCscGgxV85vOo&s=UdM4yDUJGI81iOHT3gWMDhnYdYi5sDeMyoD249yK-9Y&e=>
>>>>>> >
>>>>>> ==============================================================================
>>>>>> > --- llvm/trunk/include/llvm/DebugInfo/DWARF/DWARFUnit.h (original)
>>>>>> > +++ llvm/trunk/include/llvm/DebugInfo/DWARF/DWARFUnit.h Tue May 19
>>>>>> 16:54:32 2015
>>>>>> > @@ -195,9 +195,8 @@ public:
>>>>>> > BaseAddr = base_addr;
>>>>>> > }
>>>>>> >
>>>>>> > - const DWARFDebugInfoEntryMinimal *
>>>>>> > - getCompileUnitDIE(bool extract_cu_die_only = true) {
>>>>>> > - extractDIEsIfNeeded(extract_cu_die_only);
>>>>>> > + const DWARFDebugInfoEntryMinimal *getUnitDIE(bool
>>>>>> ExtractUnitDIEOnly = true) {
>>>>>> > + extractDIEsIfNeeded(ExtractUnitDIEOnly);
>>>>>> > return DieArray.empty() ? nullptr : &DieArray[0];
>>>>>> > }
>>>>>> >
>>>>>> > @@ -226,8 +225,7 @@ public:
>>>>>> > /// It is illegal to call this method with a DIE that hasn't be
>>>>>> > /// created by this unit. In other word, it's illegal to call
>>>>>> this
>>>>>> > /// method on a DIE that isn't accessible by following
>>>>>> > - /// children/sibling links starting from this unit's
>>>>>> > - /// getCompileUnitDIE().
>>>>>> > + /// children/sibling links starting from this unit's
>>>>>> getUnitDIE().
>>>>>> > uint32_t getDIEIndex(const DWARFDebugInfoEntryMinimal *DIE) {
>>>>>> > assert(!DieArray.empty() && DIE >= &DieArray[0] &&
>>>>>> > DIE < &DieArray[0] + DieArray.size());
>>>>>> >
>>>>>> > Modified: llvm/trunk/lib/DebugInfo/DWARF/DWARFCompileUnit.cpp
>>>>>> > URL:
>>>>>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/DWARF/DWARFCompileUnit.cpp?rev=237733&r1=237732&r2=237733&view=diff
>>>>>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_viewvc_llvm-2Dproject_llvm_trunk_lib_DebugInfo_DWARF_DWARFCompileUnit.cpp-3Frev-3D237733-26r1-3D237732-26r2-3D237733-26view-3Ddiff&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=mQ4LZ2PUj9hpadE3cDHZnIdEwhEBrbAstXeMaFoB9tg&m=i0RikhEETYZDN7aNgdqzao5KZVbb44wCscGgxV85vOo&s=q9Qw5_oJ_WYHkzMoXhKy_3DjR5vajUv8gQ4HRKAbXj8&e=>
>>>>>> >
>>>>>> ==============================================================================
>>>>>> > --- llvm/trunk/lib/DebugInfo/DWARF/DWARFCompileUnit.cpp (original)
>>>>>> > +++ llvm/trunk/lib/DebugInfo/DWARF/DWARFCompileUnit.cpp Tue May 19
>>>>>> 16:54:32 2015
>>>>>> > @@ -22,9 +22,10 @@ void DWARFCompileUnit::dump(raw_ostream
>>>>>> > << " (next unit at " << format("0x%08x", getNextUnitOffset())
>>>>>> > << ")\n";
>>>>>> >
>>>>>> > - const DWARFDebugInfoEntryMinimal *CU = getCompileUnitDIE(false);
>>>>>> > - assert(CU && "Null Compile Unit?");
>>>>>> > - CU->dump(OS, this, -1U);
>>>>>> > + if (const DWARFDebugInfoEntryMinimal *CU = getUnitDIE(false))
>>>>>> > + CU->dump(OS, this, -1U);
>>>>>> > + else
>>>>>> > + OS << "<compile unit can't be parsed!>\n\n";
>>>>>> > }
>>>>>> >
>>>>>> > // VTable anchor.
>>>>>> >
>>>>>> > Modified: llvm/trunk/lib/DebugInfo/DWARF/DWARFContext.cpp
>>>>>> > URL:
>>>>>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/DWARF/DWARFContext.cpp?rev=237733&r1=237732&r2=237733&view=diff
>>>>>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_viewvc_llvm-2Dproject_llvm_trunk_lib_DebugInfo_DWARF_DWARFContext.cpp-3Frev-3D237733-26r1-3D237732-26r2-3D237733-26view-3Ddiff&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=mQ4LZ2PUj9hpadE3cDHZnIdEwhEBrbAstXeMaFoB9tg&m=i0RikhEETYZDN7aNgdqzao5KZVbb44wCscGgxV85vOo&s=HJVL60uJ4lybBLyg2Qcq9DDCYOza6L53QTPT0GfYrpU&e=>
>>>>>> >
>>>>>> ==============================================================================
>>>>>> > --- llvm/trunk/lib/DebugInfo/DWARF/DWARFContext.cpp (original)
>>>>>> > +++ llvm/trunk/lib/DebugInfo/DWARF/DWARFContext.cpp Tue May 19
>>>>>> 16:54:32 2015
>>>>>> > @@ -140,9 +140,11 @@ void DWARFContext::dump(raw_ostream &OS,
>>>>>> > OS << "\n.debug_line contents:\n";
>>>>>> > for (const auto &CU : compile_units()) {
>>>>>> > savedAddressByteSize = CU->getAddressByteSize();
>>>>>> > - unsigned stmtOffset =
>>>>>> > -
>>>>>> CU->getCompileUnitDIE()->getAttributeValueAsSectionOffset(
>>>>>> > - CU.get(), DW_AT_stmt_list, -1U);
>>>>>> > + const auto *CUDIE = CU->getUnitDIE();
>>>>>> > + if (CUDIE == nullptr)
>>>>>> > + continue;
>>>>>> > + unsigned stmtOffset =
>>>>>> CUDIE->getAttributeValueAsSectionOffset(
>>>>>> > + CU.get(), DW_AT_stmt_list, -1U);
>>>>>> > if (stmtOffset != -1U) {
>>>>>> > DataExtractor lineData(getLineSection().Data,
>>>>>> isLittleEndian(),
>>>>>> > savedAddressByteSize);
>>>>>> > @@ -321,13 +323,14 @@ const DWARFDebugFrame *DWARFContext::get
>>>>>> > }
>>>>>> >
>>>>>> > const DWARFLineTable *
>>>>>> > -DWARFContext::getLineTableForUnit(DWARFUnit *cu) {
>>>>>> > +DWARFContext::getLineTableForUnit(DWARFUnit *U) {
>>>>>> > if (!Line)
>>>>>> > Line.reset(new DWARFDebugLine(&getLineSection().Relocs));
>>>>>> > -
>>>>>> > + const auto *UnitDIE = U->getUnitDIE();
>>>>>> > + if (UnitDIE == nullptr)
>>>>>> > + return nullptr;
>>>>>> > unsigned stmtOffset =
>>>>>> > - cu->getCompileUnitDIE()->getAttributeValueAsSectionOffset(
>>>>>> > - cu, DW_AT_stmt_list, -1U);
>>>>>> > + UnitDIE->getAttributeValueAsSectionOffset(U,
>>>>>> DW_AT_stmt_list, -1U);
>>>>>> > if (stmtOffset == -1U)
>>>>>> > return nullptr; // No line table for this compile unit.
>>>>>> >
>>>>>> > @@ -337,7 +340,7 @@ DWARFContext::getLineTableForUnit(DWARFU
>>>>>> >
>>>>>> > // We have to parse it first.
>>>>>> > DataExtractor lineData(getLineSection().Data, isLittleEndian(),
>>>>>> > - cu->getAddressByteSize());
>>>>>> > + U->getAddressByteSize());
>>>>>> > return Line->getOrParseLineTable(lineData, stmtOffset);
>>>>>> > }
>>>>>> >
>>>>>> >
>>>>>> > Modified: llvm/trunk/lib/DebugInfo/DWARF/DWARFTypeUnit.cpp
>>>>>> > URL:
>>>>>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/DWARF/DWARFTypeUnit.cpp?rev=237733&r1=237732&r2=237733&view=diff
>>>>>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_viewvc_llvm-2Dproject_llvm_trunk_lib_DebugInfo_DWARF_DWARFTypeUnit.cpp-3Frev-3D237733-26r1-3D237732-26r2-3D237733-26view-3Ddiff&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=mQ4LZ2PUj9hpadE3cDHZnIdEwhEBrbAstXeMaFoB9tg&m=i0RikhEETYZDN7aNgdqzao5KZVbb44wCscGgxV85vOo&s=CKRMfE-kGYuRa3LpYSaggn0lntWaEmnHl811uBLEi58&e=>
>>>>>> >
>>>>>> ==============================================================================
>>>>>> > --- llvm/trunk/lib/DebugInfo/DWARF/DWARFTypeUnit.cpp (original)
>>>>>> > +++ llvm/trunk/lib/DebugInfo/DWARF/DWARFTypeUnit.cpp Tue May 19
>>>>>> 16:54:32 2015
>>>>>> > @@ -33,7 +33,8 @@ void DWARFTypeUnit::dump(raw_ostream &OS
>>>>>> > << " (next unit at " << format("0x%08x", getNextUnitOffset())
>>>>>> > << ")\n";
>>>>>> >
>>>>>> > - const DWARFDebugInfoEntryMinimal *CU = getCompileUnitDIE(false);
>>>>>> > - assert(CU && "Null Compile Unit?");
>>>>>> > - CU->dump(OS, this, -1U);
>>>>>> > + if (const DWARFDebugInfoEntryMinimal *TU = getUnitDIE(false))
>>>>>> > + TU->dump(OS, this, -1U);
>>>>>> > + else
>>>>>> > + OS << "<type unit can't be parsed!>\n\n";
>>>>>> > }
>>>>>> >
>>>>>> > Modified: llvm/trunk/lib/DebugInfo/DWARF/DWARFUnit.cpp
>>>>>> > URL:
>>>>>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/DWARF/DWARFUnit.cpp?rev=237733&r1=237732&r2=237733&view=diff
>>>>>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_viewvc_llvm-2Dproject_llvm_trunk_lib_DebugInfo_DWARF_DWARFUnit.cpp-3Frev-3D237733-26r1-3D237732-26r2-3D237733-26view-3Ddiff&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=mQ4LZ2PUj9hpadE3cDHZnIdEwhEBrbAstXeMaFoB9tg&m=i0RikhEETYZDN7aNgdqzao5KZVbb44wCscGgxV85vOo&s=ONzxT5tM7jRAOqxX9shQH-CMGyvjBMnqGzlxdK0hAz0&e=>
>>>>>> >
>>>>>> ==============================================================================
>>>>>> > --- llvm/trunk/lib/DebugInfo/DWARF/DWARFUnit.cpp (original)
>>>>>> > +++ llvm/trunk/lib/DebugInfo/DWARF/DWARFUnit.cpp Tue May 19
>>>>>> 16:54:32 2015
>>>>>> > @@ -310,8 +310,11 @@ void DWARFUnit::clearDIEs(bool KeepCUDie
>>>>>> > }
>>>>>> >
>>>>>> > void DWARFUnit::collectAddressRanges(DWARFAddressRangesVector
>>>>>> &CURanges) {
>>>>>> > - // First, check if CU DIE describes address ranges for the unit.
>>>>>> > - const auto &CUDIERanges =
>>>>>> getCompileUnitDIE()->getAddressRanges(this);
>>>>>> > + const auto *U = getUnitDIE();
>>>>>> > + if (U == nullptr)
>>>>>> > + return;
>>>>>> > + // First, check if unit DIE describes address ranges for the
>>>>>> whole unit.
>>>>>> > + const auto &CUDIERanges = U->getAddressRanges(this);
>>>>>> > if (!CUDIERanges.empty()) {
>>>>>> > CURanges.insert(CURanges.end(), CUDIERanges.begin(),
>>>>>> CUDIERanges.end());
>>>>>> > return;
>>>>>> >
>>>>>> > Modified: llvm/trunk/tools/dsymutil/DwarfLinker.cpp
>>>>>> > URL:
>>>>>> http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/dsymutil/DwarfLinker.cpp?rev=237733&r1=237732&r2=237733&view=diff
>>>>>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_viewvc_llvm-2Dproject_llvm_trunk_tools_dsymutil_DwarfLinker.cpp-3Frev-3D237733-26r1-3D237732-26r2-3D237733-26view-3Ddiff&d=AwMFaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=mQ4LZ2PUj9hpadE3cDHZnIdEwhEBrbAstXeMaFoB9tg&m=i0RikhEETYZDN7aNgdqzao5KZVbb44wCscGgxV85vOo&s=lthJ-pbHL4ZQvFR0n9YmO2E7a1DFd4N2iMCAXNF-VrM&e=>
>>>>>> >
>>>>>> ==============================================================================
>>>>>> > --- llvm/trunk/tools/dsymutil/DwarfLinker.cpp (original)
>>>>>> > +++ llvm/trunk/tools/dsymutil/DwarfLinker.cpp Tue May 19 16:54:32
>>>>>> 2015
>>>>>> > @@ -729,7 +729,7 @@ void DwarfStreamer::emitLocationsForUnit
>>>>>> > const DWARFSection &InputSec = Dwarf.getLocSection();
>>>>>> > DataExtractor Data(InputSec.Data, Dwarf.isLittleEndian(),
>>>>>> AddressSize);
>>>>>> > DWARFUnit &OrigUnit = Unit.getOrigUnit();
>>>>>> > - const auto *OrigUnitDie = OrigUnit.getCompileUnitDIE(false);
>>>>>> > + const auto *OrigUnitDie = OrigUnit.getUnitDIE(false);
>>>>>> > int64_t UnitPcOffset = 0;
>>>>>> > uint64_t OrigLowPc = OrigUnitDie->getAttributeValueAsAddress(
>>>>>> > &OrigUnit, dwarf::DW_AT_low_pc, -1ULL);
>>>>>> > @@ -2203,7 +2203,7 @@ void DwarfLinker::patchRangesForUnit(con
>>>>>> > OrigDwarf.isLittleEndian(),
>>>>>> AddressSize);
>>>>>> > auto InvalidRange = FunctionRanges.end(), CurrRange =
>>>>>> InvalidRange;
>>>>>> > DWARFUnit &OrigUnit = Unit.getOrigUnit();
>>>>>> > - const auto *OrigUnitDie = OrigUnit.getCompileUnitDIE(false);
>>>>>> > + const auto *OrigUnitDie = OrigUnit.getUnitDIE(false);
>>>>>> > uint64_t OrigLowPc = OrigUnitDie->getAttributeValueAsAddress(
>>>>>> > &OrigUnit, dwarf::DW_AT_low_pc, -1ULL);
>>>>>> > // Ranges addresses are based on the unit's low_pc. Compute the
>>>>>> > @@ -2287,7 +2287,7 @@ static void insertLineSequence(std::vect
>>>>>> > void DwarfLinker::patchLineTableForUnit(CompileUnit &Unit,
>>>>>> > DWARFContext &OrigDwarf) {
>>>>>> > const DWARFDebugInfoEntryMinimal *CUDie =
>>>>>> > - Unit.getOrigUnit().getCompileUnitDIE();
>>>>>> > + Unit.getOrigUnit().getUnitDIE();
>>>>>> > uint64_t StmtList = CUDie->getAttributeValueAsSectionOffset(
>>>>>> > &Unit.getOrigUnit(), dwarf::DW_AT_stmt_list, -1ULL);
>>>>>> > if (StmtList == -1ULL)
>>>>>> > @@ -2461,7 +2461,7 @@ bool DwarfLinker::link(const DebugMap &M
>>>>>> > // In a first phase, just read in the debug info and store the
>>>>>> DIE
>>>>>> > // parent links that we will use during the next phase.
>>>>>> > for (const auto &CU : DwarfContext.compile_units()) {
>>>>>> > - auto *CUDie = CU->getCompileUnitDIE(false);
>>>>>> > + auto *CUDie = CU->getUnitDIE(false);
>>>>>> > if (Options.Verbose) {
>>>>>> > outs() << "Input compilation unit:";
>>>>>> > CUDie->dump(outs(), CU.get(), 0);
>>>>>> > @@ -2476,7 +2476,7 @@ bool DwarfLinker::link(const DebugMap &M
>>>>>> > // references require the ParentIdx to be setup for every CU in
>>>>>> > // the object file before calling this.
>>>>>> > for (auto &CurrentUnit : Units)
>>>>>> > -
>>>>>> lookForDIEsToKeep(*CurrentUnit.getOrigUnit().getCompileUnitDIE(), *Obj,
>>>>>> > + lookForDIEsToKeep(*CurrentUnit.getOrigUnit().getUnitDIE(),
>>>>>> *Obj,
>>>>>> > CurrentUnit, 0);
>>>>>> >
>>>>>> > // The calls to applyValidRelocs inside cloneDIE will walk the
>>>>>> > @@ -2489,7 +2489,7 @@ bool DwarfLinker::link(const DebugMap &M
>>>>>> > // to clone/emit.
>>>>>> > if (!ValidRelocs.empty())
>>>>>> > for (auto &CurrentUnit : Units) {
>>>>>> > - const auto *InputDIE =
>>>>>> CurrentUnit.getOrigUnit().getCompileUnitDIE();
>>>>>> > + const auto *InputDIE =
>>>>>> CurrentUnit.getOrigUnit().getUnitDIE();
>>>>>> > CurrentUnit.setStartOffset(OutputDebugInfoSize);
>>>>>> > DIE *OutputDIE = cloneDIE(*InputDIE, CurrentUnit, 0 /*
>>>>>> PCOffset */,
>>>>>> > 11 /* Unit Header size */);
>>>>>> >
>>>>>> >
>>>>>> > _______________________________________________
>>>>>> > llvm-commits mailing list
>>>>>> > llvm-commits at cs.uiuc.edu
>>>>>> > http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Alexey Samsonov
>>>>> vonosmas at gmail.com
>>>>> _______________________________________________
>>>>> llvm-commits mailing list
>>>>> llvm-commits at cs.uiuc.edu
>>>>> http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
>>>>>
>>>>
>>>
>>> --
>>> F
>>>
>>>
>>
>>
>> --
>> Alexey Samsonov
>> vonosmas at gmail.com
>>
>
>
> --
> F
>
>
--
Alexey Samsonov
vonosmas at gmail.com
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