diff options
Diffstat (limited to 'lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp')
| -rw-r--r-- | lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp | 209 |
1 files changed, 92 insertions, 117 deletions
diff --git a/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp b/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp index 6773d0762a2..fe6df913b76 100644 --- a/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp +++ b/lldb/source/Plugins/SymbolFile/DWARF/DWARFDebugAbbrev.cpp @@ -18,74 +18,63 @@ using namespace std; //---------------------------------------------------------------------- // DWARFAbbreviationDeclarationSet::Clear() //---------------------------------------------------------------------- -void -DWARFAbbreviationDeclarationSet::Clear() -{ - m_idx_offset = 0; - m_decls.clear(); +void DWARFAbbreviationDeclarationSet::Clear() { + m_idx_offset = 0; + m_decls.clear(); } - //---------------------------------------------------------------------- // DWARFAbbreviationDeclarationSet::Extract() //---------------------------------------------------------------------- -bool -DWARFAbbreviationDeclarationSet::Extract(const DWARFDataExtractor& data, lldb::offset_t *offset_ptr) -{ - const lldb::offset_t begin_offset = *offset_ptr; - m_offset = begin_offset; - Clear(); - DWARFAbbreviationDeclaration abbrevDeclaration; - dw_uleb128_t prev_abbr_code = 0; - while (abbrevDeclaration.Extract(data, offset_ptr)) - { - m_decls.push_back(abbrevDeclaration); - if (m_idx_offset == 0) - m_idx_offset = abbrevDeclaration.Code(); - else - { - if (prev_abbr_code + 1 != abbrevDeclaration.Code()) - m_idx_offset = UINT32_MAX; // Out of order indexes, we can't do O(1) lookups... - } - prev_abbr_code = abbrevDeclaration.Code(); +bool DWARFAbbreviationDeclarationSet::Extract(const DWARFDataExtractor &data, + lldb::offset_t *offset_ptr) { + const lldb::offset_t begin_offset = *offset_ptr; + m_offset = begin_offset; + Clear(); + DWARFAbbreviationDeclaration abbrevDeclaration; + dw_uleb128_t prev_abbr_code = 0; + while (abbrevDeclaration.Extract(data, offset_ptr)) { + m_decls.push_back(abbrevDeclaration); + if (m_idx_offset == 0) + m_idx_offset = abbrevDeclaration.Code(); + else { + if (prev_abbr_code + 1 != abbrevDeclaration.Code()) + m_idx_offset = + UINT32_MAX; // Out of order indexes, we can't do O(1) lookups... } - return begin_offset != *offset_ptr; + prev_abbr_code = abbrevDeclaration.Code(); + } + return begin_offset != *offset_ptr; } - //---------------------------------------------------------------------- // DWARFAbbreviationDeclarationSet::Dump() //---------------------------------------------------------------------- -void -DWARFAbbreviationDeclarationSet::Dump(Stream *s) const -{ - std::for_each (m_decls.begin(), m_decls.end(), bind2nd(std::mem_fun_ref(&DWARFAbbreviationDeclaration::Dump),s)); +void DWARFAbbreviationDeclarationSet::Dump(Stream *s) const { + std::for_each( + m_decls.begin(), m_decls.end(), + bind2nd(std::mem_fun_ref(&DWARFAbbreviationDeclaration::Dump), s)); } - //---------------------------------------------------------------------- // DWARFAbbreviationDeclarationSet::GetAbbreviationDeclaration() //---------------------------------------------------------------------- -const DWARFAbbreviationDeclaration* -DWARFAbbreviationDeclarationSet::GetAbbreviationDeclaration(dw_uleb128_t abbrCode) const -{ - if (m_idx_offset == UINT32_MAX) - { - DWARFAbbreviationDeclarationCollConstIter pos; - DWARFAbbreviationDeclarationCollConstIter end = m_decls.end(); - for (pos = m_decls.begin(); pos != end; ++pos) - { - if (pos->Code() == abbrCode) - return &(*pos); - } - } - else - { - uint32_t idx = abbrCode - m_idx_offset; - if (idx < m_decls.size()) - return &m_decls[idx]; +const DWARFAbbreviationDeclaration * +DWARFAbbreviationDeclarationSet::GetAbbreviationDeclaration( + dw_uleb128_t abbrCode) const { + if (m_idx_offset == UINT32_MAX) { + DWARFAbbreviationDeclarationCollConstIter pos; + DWARFAbbreviationDeclarationCollConstIter end = m_decls.end(); + for (pos = m_decls.begin(); pos != end; ++pos) { + if (pos->Code() == abbrCode) + return &(*pos); } - return NULL; + } else { + uint32_t idx = abbrCode - m_idx_offset; + if (idx < m_decls.size()) + return &m_decls[idx]; + } + return NULL; } //---------------------------------------------------------------------- @@ -94,22 +83,20 @@ DWARFAbbreviationDeclarationSet::GetAbbreviationDeclaration(dw_uleb128_t abbrCod // Append an abbreviation declaration with a sequential code for O(n) // lookups. Handy when creating an DWARFAbbreviationDeclarationSet. //---------------------------------------------------------------------- -dw_uleb128_t -DWARFAbbreviationDeclarationSet::AppendAbbrevDeclSequential(const DWARFAbbreviationDeclaration& abbrevDecl) -{ - // Get the next abbreviation code based on our current array size - dw_uleb128_t code = m_decls.size()+1; +dw_uleb128_t DWARFAbbreviationDeclarationSet::AppendAbbrevDeclSequential( + const DWARFAbbreviationDeclaration &abbrevDecl) { + // Get the next abbreviation code based on our current array size + dw_uleb128_t code = m_decls.size() + 1; - // Push the new declaration on the back - m_decls.push_back(abbrevDecl); + // Push the new declaration on the back + m_decls.push_back(abbrevDecl); - // Update the code for this new declaration - m_decls.back().SetCode(code); + // Update the code for this new declaration + m_decls.back().SetCode(code); - return code; // return the new abbreviation code! + return code; // return the new abbreviation code! } - //---------------------------------------------------------------------- // Encode // @@ -117,8 +104,9 @@ DWARFAbbreviationDeclarationSet::AppendAbbrevDeclSequential(const DWARFAbbreviat // into a byte representation as would be found in a ".debug_abbrev" // debug information section. //---------------------------------------------------------------------- -//void -//DWARFAbbreviationDeclarationSet::Encode(BinaryStreamBuf& debug_abbrev_buf) const +// void +// DWARFAbbreviationDeclarationSet::Encode(BinaryStreamBuf& debug_abbrev_buf) +// const //{ // DWARFAbbreviationDeclarationCollConstIter pos; // DWARFAbbreviationDeclarationCollConstIter end = m_decls.end(); @@ -127,76 +115,63 @@ DWARFAbbreviationDeclarationSet::AppendAbbrevDeclSequential(const DWARFAbbreviat // debug_abbrev_buf.Append8(0); //} - //---------------------------------------------------------------------- // DWARFDebugAbbrev constructor //---------------------------------------------------------------------- -DWARFDebugAbbrev::DWARFDebugAbbrev() : - m_abbrevCollMap(), - m_prev_abbr_offset_pos(m_abbrevCollMap.end()) -{ -} - +DWARFDebugAbbrev::DWARFDebugAbbrev() + : m_abbrevCollMap(), m_prev_abbr_offset_pos(m_abbrevCollMap.end()) {} //---------------------------------------------------------------------- // DWARFDebugAbbrev::Parse() //---------------------------------------------------------------------- -void -DWARFDebugAbbrev::Parse(const DWARFDataExtractor& data) -{ - lldb::offset_t offset = 0; +void DWARFDebugAbbrev::Parse(const DWARFDataExtractor &data) { + lldb::offset_t offset = 0; - while (data.ValidOffset(offset)) - { - uint32_t initial_cu_offset = offset; - DWARFAbbreviationDeclarationSet abbrevDeclSet; + while (data.ValidOffset(offset)) { + uint32_t initial_cu_offset = offset; + DWARFAbbreviationDeclarationSet abbrevDeclSet; - if (abbrevDeclSet.Extract(data, &offset)) - m_abbrevCollMap[initial_cu_offset] = abbrevDeclSet; - else - break; - } - m_prev_abbr_offset_pos = m_abbrevCollMap.end(); + if (abbrevDeclSet.Extract(data, &offset)) + m_abbrevCollMap[initial_cu_offset] = abbrevDeclSet; + else + break; + } + m_prev_abbr_offset_pos = m_abbrevCollMap.end(); } //---------------------------------------------------------------------- // DWARFDebugAbbrev::Dump() //---------------------------------------------------------------------- -void -DWARFDebugAbbrev::Dump(Stream *s) const -{ - if (m_abbrevCollMap.empty()) - { - s->PutCString("< EMPTY >\n"); - return; - } - - DWARFAbbreviationDeclarationCollMapConstIter pos; - for (pos = m_abbrevCollMap.begin(); pos != m_abbrevCollMap.end(); ++pos) - { - s->Printf("Abbrev table for offset: 0x%8.8x\n", pos->first); - pos->second.Dump(s); - } +void DWARFDebugAbbrev::Dump(Stream *s) const { + if (m_abbrevCollMap.empty()) { + s->PutCString("< EMPTY >\n"); + return; + } + + DWARFAbbreviationDeclarationCollMapConstIter pos; + for (pos = m_abbrevCollMap.begin(); pos != m_abbrevCollMap.end(); ++pos) { + s->Printf("Abbrev table for offset: 0x%8.8x\n", pos->first); + pos->second.Dump(s); + } } - //---------------------------------------------------------------------- // DWARFDebugAbbrev::GetAbbreviationDeclarationSet() //---------------------------------------------------------------------- -const DWARFAbbreviationDeclarationSet* -DWARFDebugAbbrev::GetAbbreviationDeclarationSet(dw_offset_t cu_abbr_offset) const -{ - DWARFAbbreviationDeclarationCollMapConstIter end = m_abbrevCollMap.end(); - DWARFAbbreviationDeclarationCollMapConstIter pos; - if (m_prev_abbr_offset_pos != end && m_prev_abbr_offset_pos->first == cu_abbr_offset) - return &(m_prev_abbr_offset_pos->second); - else - { - pos = m_abbrevCollMap.find(cu_abbr_offset); - m_prev_abbr_offset_pos = pos; - } - - if (pos != m_abbrevCollMap.end()) - return &(pos->second); - return NULL; +const DWARFAbbreviationDeclarationSet * +DWARFDebugAbbrev::GetAbbreviationDeclarationSet( + dw_offset_t cu_abbr_offset) const { + DWARFAbbreviationDeclarationCollMapConstIter end = m_abbrevCollMap.end(); + DWARFAbbreviationDeclarationCollMapConstIter pos; + if (m_prev_abbr_offset_pos != end && + m_prev_abbr_offset_pos->first == cu_abbr_offset) + return &(m_prev_abbr_offset_pos->second); + else { + pos = m_abbrevCollMap.find(cu_abbr_offset); + m_prev_abbr_offset_pos = pos; + } + + if (pos != m_abbrevCollMap.end()) + return &(pos->second); + return NULL; } |
