Author: Alex Langford Date: 2023-06-12T14:53:44-07:00 New Revision: f09cca4c6f67c2ab135c391ea8090130c5327c02
URL: https://github.com/llvm/llvm-project/commit/f09cca4c6f67c2ab135c391ea8090130c5327c02 DIFF: https://github.com/llvm/llvm-project/commit/f09cca4c6f67c2ab135c391ea8090130c5327c02.diff LOG: [lldb] Remove lldb's DWARFAbbreviationDeclarationSet in favor of llvm's lldb's and llvm's implementations of DWARFAbbreviationDeclarationSet are now close enough (almost the same, actually) to replace lldb's with llvm's wholesale. llvm's is also tested against the same kinds of scenarios that lldb's is tested against so we can remove lldb's tests here. (see: llvm/unittests/DebugInfo/DWARF/DWARFDebugAbbrevTest.cpp). Differential Revision: https://reviews.llvm.org/D152476 Added: Modified: lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.h lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.cpp lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.cpp lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h lldb/unittests/SymbolFile/DWARF/SymbolFileDWARFTests.cpp Removed: ################################################################################ diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp b/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp index c8d5aad2ef8e7..0cd53463ee65e 100644 --- a/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp +++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp @@ -14,96 +14,20 @@ using namespace lldb; using namespace lldb_private; -// DWARFAbbreviationDeclarationSet::Clear() -void DWARFAbbreviationDeclarationSet::Clear() { - m_idx_offset = 0; - m_decls.clear(); -} - -// DWARFAbbreviationDeclarationSet::Extract() -llvm::Error -DWARFAbbreviationDeclarationSet::extract(const DWARFDataExtractor &data, - lldb::offset_t *offset_ptr) { - llvm::DataExtractor llvm_data = data.GetAsLLVM(); - const lldb::offset_t begin_offset = *offset_ptr; - m_offset = begin_offset; - Clear(); - DWARFAbbreviationDeclaration abbrevDeclaration; - uint32_t prev_abbr_code = 0; - while (true) { - llvm::Expected<llvm::DWARFAbbreviationDeclaration::ExtractState> es = - abbrevDeclaration.extract(llvm_data, offset_ptr); - if (!es) - return es.takeError(); - if (*es == llvm::DWARFAbbreviationDeclaration::ExtractState::Complete) - break; - if (m_idx_offset == 0) - m_idx_offset = abbrevDeclaration.getCode(); - else if (prev_abbr_code + 1 != abbrevDeclaration.getCode()) - m_idx_offset = UINT32_MAX; - - prev_abbr_code = abbrevDeclaration.getCode(); - m_decls.push_back(abbrevDeclaration); - } - return llvm::ErrorSuccess(); -} - -// DWARFAbbreviationDeclarationSet::GetAbbreviationDeclaration() -const DWARFAbbreviationDeclaration * -DWARFAbbreviationDeclarationSet::GetAbbreviationDeclaration( - uint32_t abbrCode) const { - if (m_idx_offset == UINT32_MAX) { - for (const auto &decl : m_decls) { - if (decl.getCode() == abbrCode) - return &decl; - } - return nullptr; - } - if (abbrCode < m_idx_offset || abbrCode >= m_idx_offset + m_decls.size()) - return nullptr; - return &m_decls[abbrCode - m_idx_offset]; -} - -// DWARFAbbreviationDeclarationSet::GetUnsupportedForms() -void DWARFAbbreviationDeclarationSet::GetUnsupportedForms( - std::set<dw_form_t> &invalid_forms) const { - for (const auto &decl : m_decls) { - for (const auto &attr : decl.attributes()) { - if (!DWARFFormValue::FormIsSupported(attr.Form)) - invalid_forms.insert(attr.Form); - } - } -} - -// Encode -// -// Encode the abbreviation table onto the end of the buffer provided into a -// byte representation as would be found in a ".debug_abbrev" debug information -// section. -// void -// DWARFAbbreviationDeclarationSet::Encode(BinaryStreamBuf& debug_abbrev_buf) -// const -//{ -// DWARFAbbreviationDeclarationCollConstIter pos; -// DWARFAbbreviationDeclarationCollConstIter end = m_decls.end(); -// for (pos = m_decls.begin(); pos != end; ++pos) -// pos->Append(debug_abbrev_buf); -// debug_abbrev_buf.Append8(0); -//} - // DWARFDebugAbbrev constructor DWARFDebugAbbrev::DWARFDebugAbbrev() : m_abbrevCollMap(), m_prev_abbr_offset_pos(m_abbrevCollMap.end()) {} // DWARFDebugAbbrev::Parse() llvm::Error DWARFDebugAbbrev::parse(const DWARFDataExtractor &data) { + llvm::DataExtractor llvm_data = data.GetAsLLVM(); lldb::offset_t offset = 0; - while (data.ValidOffset(offset)) { + while (llvm_data.isValidOffset(offset)) { uint32_t initial_cu_offset = offset; DWARFAbbreviationDeclarationSet abbrevDeclSet; - llvm::Error error = abbrevDeclSet.extract(data, &offset); + llvm::Error error = abbrevDeclSet.extract(llvm_data, &offset); if (error) return error; @@ -136,5 +60,8 @@ DWARFDebugAbbrev::GetAbbreviationDeclarationSet( void DWARFDebugAbbrev::GetUnsupportedForms( std::set<dw_form_t> &invalid_forms) const { for (const auto &pair : m_abbrevCollMap) - pair.second.GetUnsupportedForms(invalid_forms); + for (const auto &decl : pair.second) + for (const auto &attr : decl.attributes()) + if (!DWARFFormValue::FormIsSupported(attr.Form)) + invalid_forms.insert(attr.Form); } diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.h b/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.h index 27b5e9b0f9050..0a579e34b0013 100644 --- a/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.h +++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.h @@ -13,47 +13,12 @@ #include "lldb/lldb-private.h" #include "llvm/DebugInfo/DWARF/DWARFAbbreviationDeclaration.h" +#include "llvm/DebugInfo/DWARF/DWARFDebugAbbrev.h" #include <map> using DWARFAbbreviationDeclaration = llvm::DWARFAbbreviationDeclaration; - -typedef std::vector<DWARFAbbreviationDeclaration> - DWARFAbbreviationDeclarationColl; -typedef DWARFAbbreviationDeclarationColl::iterator - DWARFAbbreviationDeclarationCollIter; -typedef DWARFAbbreviationDeclarationColl::const_iterator - DWARFAbbreviationDeclarationCollConstIter; - -class DWARFAbbreviationDeclarationSet { -public: - DWARFAbbreviationDeclarationSet() : m_offset(DW_INVALID_OFFSET), m_decls() {} - - DWARFAbbreviationDeclarationSet(dw_offset_t offset, uint32_t idx_offset) - : m_offset(offset), m_idx_offset(idx_offset), m_decls() {} - - void Clear(); - dw_offset_t GetOffset() const { return m_offset; } - - /// Extract all abbrev decls in a set. Returns llvm::ErrorSuccess() on - /// success, and an appropriate llvm::Error object otherwise. - llvm::Error extract(const lldb_private::DWARFDataExtractor &data, - lldb::offset_t *offset_ptr); - // void Encode(BinaryStreamBuf& debug_abbrev_buf) const; - void GetUnsupportedForms(std::set<dw_form_t> &invalid_forms) const; - - const DWARFAbbreviationDeclaration * - GetAbbreviationDeclaration(uint32_t abbrCode) const; - - /// Unit test accessor functions. - /// @{ - uint32_t GetIndexOffset() const { return m_idx_offset; } - /// @} -private: - dw_offset_t m_offset; - uint32_t m_idx_offset = 0; - std::vector<DWARFAbbreviationDeclaration> m_decls; -}; +using DWARFAbbreviationDeclarationSet = llvm::DWARFAbbreviationDeclarationSet; typedef std::map<dw_offset_t, DWARFAbbreviationDeclarationSet> DWARFAbbreviationDeclarationCollMap; diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.cpp b/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.cpp index f26fb2f4c9a4d..a08637aef0669 100644 --- a/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.cpp +++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugInfoEntry.cpp @@ -812,12 +812,14 @@ lldb::offset_t DWARFDebugInfoEntry::GetFirstAttributeOffset() const { const DWARFAbbreviationDeclaration * DWARFDebugInfoEntry::GetAbbreviationDeclarationPtr(const DWARFUnit *cu) const { - if (cu) { - const DWARFAbbreviationDeclarationSet *abbrev_set = cu->GetAbbreviations(); - if (abbrev_set) - return abbrev_set->GetAbbreviationDeclaration(m_abbr_idx); - } - return nullptr; + if (!cu) + return nullptr; + + const DWARFAbbreviationDeclarationSet *abbrev_set = cu->GetAbbreviations(); + if (!abbrev_set) + return nullptr; + + return abbrev_set->getAbbreviationDeclaration(m_abbr_idx); } bool DWARFDebugInfoEntry::IsGlobalOrStaticScopeVariable() const { diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.cpp b/lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.cpp index 2fca6c0f661a0..8a9f098b153c1 100644 --- a/lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.cpp +++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFUnit.cpp @@ -440,7 +440,7 @@ const DWARFAbbreviationDeclarationSet *DWARFUnit::GetAbbreviations() const { } dw_offset_t DWARFUnit::GetAbbrevOffset() const { - return m_abbrevs ? m_abbrevs->GetOffset() : DW_INVALID_OFFSET; + return m_abbrevs ? m_abbrevs->getOffset() : DW_INVALID_OFFSET; } dw_offset_t DWARFUnit::GetLineTableOffset() { diff --git a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h index d3479721f0a31..191a5abcf265a 100644 --- a/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h +++ b/lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.h @@ -40,7 +40,6 @@ // Forward Declarations for this DWARF plugin class DebugMapModule; -class DWARFAbbreviationDeclarationSet; class DWARFCompileUnit; class DWARFDebugAbbrev; class DWARFDebugAranges; diff --git a/lldb/unittests/SymbolFile/DWARF/SymbolFileDWARFTests.cpp b/lldb/unittests/SymbolFile/DWARF/SymbolFileDWARFTests.cpp index e9289726717fd..9cbdeffc59a7f 100644 --- a/lldb/unittests/SymbolFile/DWARF/SymbolFileDWARFTests.cpp +++ b/lldb/unittests/SymbolFile/DWARF/SymbolFileDWARFTests.cpp @@ -16,7 +16,6 @@ #include "Plugins/ObjectFile/PECOFF/ObjectFilePECOFF.h" #include "Plugins/SymbolFile/DWARF/DWARFDataExtractor.h" -#include "Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.h" #include "Plugins/SymbolFile/DWARF/DWARFDebugArangeSet.h" #include "Plugins/SymbolFile/DWARF/DWARFDebugAranges.h" #include "Plugins/SymbolFile/DWARF/SymbolFileDWARF.h" @@ -68,252 +67,6 @@ TEST_F(SymbolFileDWARFTests, TestAbilitiesForDWARF) { EXPECT_EQ(expected_abilities, symfile->CalculateAbilities()); } -TEST_F(SymbolFileDWARFTests, TestAbbrevOrder1Start1) { - // Test that if we have a .debug_abbrev that contains ordered abbreviation - // codes that start at 1, that we get O(1) access. - - const auto byte_order = eByteOrderLittle; - const uint8_t addr_size = 4; - StreamString encoder(Stream::eBinary, addr_size, byte_order); - encoder.PutULEB128(1); // Abbrev code 1 - encoder.PutULEB128(DW_TAG_compile_unit); - encoder.PutHex8(DW_CHILDREN_yes); - encoder.PutULEB128(DW_AT_name); - encoder.PutULEB128(DW_FORM_strp); - encoder.PutULEB128(0); - encoder.PutULEB128(0); - - encoder.PutULEB128(2); // Abbrev code 2 - encoder.PutULEB128(DW_TAG_subprogram); - encoder.PutHex8(DW_CHILDREN_no); - encoder.PutULEB128(DW_AT_name); - encoder.PutULEB128(DW_FORM_strp); - encoder.PutULEB128(0); - encoder.PutULEB128(0); - - encoder.PutULEB128(0); // Abbrev code 0 (termination) - - DWARFDataExtractor data; - data.SetData(encoder.GetData(), encoder.GetSize(), byte_order); - DWARFAbbreviationDeclarationSet abbrev_set; - lldb::offset_t data_offset = 0; - llvm::Error error = abbrev_set.extract(data, &data_offset); - EXPECT_FALSE(bool(error)); - // Make sure we have O(1) access to each abbreviation by making sure the - // index offset is 1 and not UINT32_MAX - EXPECT_EQ(abbrev_set.GetIndexOffset(), 1u); - - auto abbrev1 = abbrev_set.GetAbbreviationDeclaration(1); - EXPECT_EQ(abbrev1->getTag(), DW_TAG_compile_unit); - EXPECT_TRUE(abbrev1->hasChildren()); - EXPECT_EQ(abbrev1->getNumAttributes(), 1u); - auto abbrev2 = abbrev_set.GetAbbreviationDeclaration(2); - EXPECT_EQ(abbrev2->getTag(), DW_TAG_subprogram); - EXPECT_FALSE(abbrev2->hasChildren()); - EXPECT_EQ(abbrev2->getNumAttributes(), 1u); -} - -TEST_F(SymbolFileDWARFTests, TestAbbrevOrder1Start5) { - // Test that if we have a .debug_abbrev that contains ordered abbreviation - // codes that start at 5, that we get O(1) access. - - const auto byte_order = eByteOrderLittle; - const uint8_t addr_size = 4; - StreamString encoder(Stream::eBinary, addr_size, byte_order); - encoder.PutULEB128(5); // Abbrev code 5 - encoder.PutULEB128(DW_TAG_compile_unit); - encoder.PutHex8(DW_CHILDREN_yes); - encoder.PutULEB128(DW_AT_name); - encoder.PutULEB128(DW_FORM_strp); - encoder.PutULEB128(0); - encoder.PutULEB128(0); - - encoder.PutULEB128(6); // Abbrev code 6 - encoder.PutULEB128(DW_TAG_subprogram); - encoder.PutHex8(DW_CHILDREN_no); - encoder.PutULEB128(DW_AT_name); - encoder.PutULEB128(DW_FORM_strp); - encoder.PutULEB128(0); - encoder.PutULEB128(0); - - encoder.PutULEB128(0); // Abbrev code 0 (termination) - - DWARFDataExtractor data; - data.SetData(encoder.GetData(), encoder.GetSize(), byte_order); - DWARFAbbreviationDeclarationSet abbrev_set; - lldb::offset_t data_offset = 0; - llvm::Error error = abbrev_set.extract(data, &data_offset); - EXPECT_FALSE(bool(error)); - // Make sure we have O(1) access to each abbreviation by making sure the - // index offset is 5 and not UINT32_MAX - EXPECT_EQ(abbrev_set.GetIndexOffset(), 5u); - - auto abbrev1 = abbrev_set.GetAbbreviationDeclaration(5); - EXPECT_EQ(abbrev1->getTag(), DW_TAG_compile_unit); - EXPECT_TRUE(abbrev1->hasChildren()); - EXPECT_EQ(abbrev1->getNumAttributes(), 1u); - auto abbrev2 = abbrev_set.GetAbbreviationDeclaration(6); - EXPECT_EQ(abbrev2->getTag(), DW_TAG_subprogram); - EXPECT_FALSE(abbrev2->hasChildren()); - EXPECT_EQ(abbrev2->getNumAttributes(), 1u); -} - -TEST_F(SymbolFileDWARFTests, TestAbbrevOutOfOrder) { - // Test that if we have a .debug_abbrev that contains unordered abbreviation - // codes, that we can access the information correctly. - - const auto byte_order = eByteOrderLittle; - const uint8_t addr_size = 4; - StreamString encoder(Stream::eBinary, addr_size, byte_order); - encoder.PutULEB128(2); // Abbrev code 2 - encoder.PutULEB128(DW_TAG_compile_unit); - encoder.PutHex8(DW_CHILDREN_yes); - encoder.PutULEB128(DW_AT_name); - encoder.PutULEB128(DW_FORM_strp); - encoder.PutULEB128(0); - encoder.PutULEB128(0); - - encoder.PutULEB128(1); // Abbrev code 1 - encoder.PutULEB128(DW_TAG_subprogram); - encoder.PutHex8(DW_CHILDREN_no); - encoder.PutULEB128(DW_AT_name); - encoder.PutULEB128(DW_FORM_strp); - encoder.PutULEB128(0); - encoder.PutULEB128(0); - - encoder.PutULEB128(0); // Abbrev code 0 (termination) - - DWARFDataExtractor data; - data.SetData(encoder.GetData(), encoder.GetSize(), byte_order); - DWARFAbbreviationDeclarationSet abbrev_set; - lldb::offset_t data_offset = 0; - llvm::Error error = abbrev_set.extract(data, &data_offset); - EXPECT_FALSE(bool(error)); - // Make sure we don't have O(1) access to each abbreviation by making sure - // the index offset is UINT32_MAX - EXPECT_EQ(abbrev_set.GetIndexOffset(), UINT32_MAX); - - auto abbrev1 = abbrev_set.GetAbbreviationDeclaration(2); - EXPECT_EQ(abbrev1->getTag(), DW_TAG_compile_unit); - EXPECT_TRUE(abbrev1->hasChildren()); - EXPECT_EQ(abbrev1->getNumAttributes(), 1u); - auto abbrev2 = abbrev_set.GetAbbreviationDeclaration(1); - EXPECT_EQ(abbrev2->getTag(), DW_TAG_subprogram); - EXPECT_FALSE(abbrev2->hasChildren()); - EXPECT_EQ(abbrev2->getNumAttributes(), 1u); -} - -TEST_F(SymbolFileDWARFTests, TestAbbrevInvalidNULLTag) { - // Test that we detect when an abbreviation has a NULL tag and that we get - // an error when decoding. - - const auto byte_order = eByteOrderLittle; - const uint8_t addr_size = 4; - StreamString encoder(Stream::eBinary, addr_size, byte_order); - encoder.PutULEB128(1); // Abbrev code 1 - encoder.PutULEB128(0); // Invalid NULL tag here! - encoder.PutHex8(DW_CHILDREN_no); - encoder.PutULEB128(0); - encoder.PutULEB128(0); - - encoder.PutULEB128(0); // Abbrev code 0 (termination) - - DWARFDataExtractor data; - data.SetData(encoder.GetData(), encoder.GetSize(), byte_order); - DWARFAbbreviationDeclarationSet abbrev_set; - lldb::offset_t data_offset = 0; - llvm::Error error = abbrev_set.extract(data, &data_offset); - // Verify we get an error - EXPECT_TRUE(bool(error)); - EXPECT_EQ("abbreviation declaration requires a non-null tag", - llvm::toString(std::move(error))); -} - -TEST_F(SymbolFileDWARFTests, TestAbbrevNullAttrValidForm) { - // Test that we detect when an abbreviation has a NULL attribute and a non - // NULL form and that we get an error when decoding. - - const auto byte_order = eByteOrderLittle; - const uint8_t addr_size = 4; - StreamString encoder(Stream::eBinary, addr_size, byte_order); - encoder.PutULEB128(1); // Abbrev code 1 - encoder.PutULEB128(DW_TAG_compile_unit); - encoder.PutHex8(DW_CHILDREN_no); - encoder.PutULEB128(0); // Invalid NULL DW_AT - encoder.PutULEB128(DW_FORM_strp); // With a valid form - encoder.PutULEB128(0); - encoder.PutULEB128(0); - - encoder.PutULEB128(0); // Abbrev code 0 (termination) - - DWARFDataExtractor data; - data.SetData(encoder.GetData(), encoder.GetSize(), byte_order); - DWARFAbbreviationDeclarationSet abbrev_set; - lldb::offset_t data_offset = 0; - llvm::Error error = abbrev_set.extract(data, &data_offset); - // Verify we get an error - EXPECT_TRUE(bool(error)); - EXPECT_EQ("malformed abbreviation declaration attribute. Either the " - "attribute or the form is zero while the other is not", - llvm::toString(std::move(error))); -} - -TEST_F(SymbolFileDWARFTests, TestAbbrevValidAttrNullForm) { - // Test that we detect when an abbreviation has a valid attribute and a - // NULL form and that we get an error when decoding. - - const auto byte_order = eByteOrderLittle; - const uint8_t addr_size = 4; - StreamString encoder(Stream::eBinary, addr_size, byte_order); - encoder.PutULEB128(1); // Abbrev code 1 - encoder.PutULEB128(DW_TAG_compile_unit); - encoder.PutHex8(DW_CHILDREN_no); - encoder.PutULEB128(DW_AT_name); // Valid attribute - encoder.PutULEB128(0); // NULL form - encoder.PutULEB128(0); - encoder.PutULEB128(0); - - encoder.PutULEB128(0); // Abbrev code 0 (termination) - - DWARFDataExtractor data; - data.SetData(encoder.GetData(), encoder.GetSize(), byte_order); - DWARFAbbreviationDeclarationSet abbrev_set; - lldb::offset_t data_offset = 0; - llvm::Error error = abbrev_set.extract(data, &data_offset); - // Verify we get an error - EXPECT_TRUE(bool(error)); - EXPECT_EQ("malformed abbreviation declaration attribute. Either the " - "attribute or the form is zero while the other is not", - llvm::toString(std::move(error))); -} - -TEST_F(SymbolFileDWARFTests, TestAbbrevMissingTerminator) { - // Test that we detect when an abbreviation has a valid attribute and a - // form, but is missing the NULL attribute and form that terminates an - // abbreviation - - const auto byte_order = eByteOrderLittle; - const uint8_t addr_size = 4; - StreamString encoder(Stream::eBinary, addr_size, byte_order); - encoder.PutULEB128(1); // Abbrev code 1 - encoder.PutULEB128(DW_TAG_compile_unit); - encoder.PutHex8(DW_CHILDREN_no); - encoder.PutULEB128(DW_AT_name); - encoder.PutULEB128(DW_FORM_strp); - // Don't add the NULL DW_AT and NULL DW_FORM terminator - - DWARFDataExtractor data; - data.SetData(encoder.GetData(), encoder.GetSize(), byte_order); - DWARFAbbreviationDeclarationSet abbrev_set; - lldb::offset_t data_offset = 0; - llvm::Error error = abbrev_set.extract(data, &data_offset); - // Verify we get an error - EXPECT_TRUE(bool(error)); - EXPECT_EQ("abbreviation declaration attribute list was not terminated with a " - "null entry", - llvm::toString(std::move(error))); -} - TEST_F(SymbolFileDWARFTests, ParseArangesNonzeroSegmentSize) { // This `.debug_aranges` table header is a valid 32bit big-endian section // according to the DWARFv5 spec:6.2.1, but contains segment selectors which _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
