diff options
Diffstat (limited to 'source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.cpp')
| -rw-r--r-- | source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.cpp | 204 |
1 files changed, 93 insertions, 111 deletions
diff --git a/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.cpp b/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.cpp index fc2831f22438..78fe571c50cf 100644 --- a/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.cpp +++ b/source/Plugins/SymbolFile/DWARF/DWARFDebugRanges.cpp @@ -15,135 +15,117 @@ using namespace lldb_private; using namespace std; -DWARFDebugRanges::DWARFDebugRanges() : - m_range_map() -{ -} +DWARFDebugRanges::DWARFDebugRanges() : m_range_map() {} -DWARFDebugRanges::~DWARFDebugRanges() -{ -} +DWARFDebugRanges::~DWARFDebugRanges() {} -void -DWARFDebugRanges::Extract(SymbolFileDWARF* dwarf2Data) -{ - DWARFRangeList range_list; - lldb::offset_t offset = 0; - dw_offset_t debug_ranges_offset = offset; - while (Extract(dwarf2Data, &offset, range_list)) - { - range_list.Sort(); - m_range_map[debug_ranges_offset] = range_list; - debug_ranges_offset = offset; - } +void DWARFDebugRanges::Extract(SymbolFileDWARF *dwarf2Data) { + DWARFRangeList range_list; + lldb::offset_t offset = 0; + dw_offset_t debug_ranges_offset = offset; + while (Extract(dwarf2Data, &offset, range_list)) { + range_list.Sort(); + m_range_map[debug_ranges_offset] = range_list; + debug_ranges_offset = offset; + } } -bool -DWARFDebugRanges::Extract(SymbolFileDWARF* dwarf2Data, lldb::offset_t *offset_ptr, DWARFRangeList &range_list) -{ - range_list.Clear(); - - lldb::offset_t range_offset = *offset_ptr; - const DWARFDataExtractor& debug_ranges_data = dwarf2Data->get_debug_ranges_data(); - uint32_t addr_size = debug_ranges_data.GetAddressByteSize(); +bool DWARFDebugRanges::Extract(SymbolFileDWARF *dwarf2Data, + lldb::offset_t *offset_ptr, + DWARFRangeList &range_list) { + range_list.Clear(); - while (debug_ranges_data.ValidOffsetForDataOfSize(*offset_ptr, 2 * addr_size)) - { - dw_addr_t begin = debug_ranges_data.GetMaxU64(offset_ptr, addr_size); - dw_addr_t end = debug_ranges_data.GetMaxU64(offset_ptr, addr_size); - if (!begin && !end) - { - // End of range list - break; - } - // Extend 4 byte addresses that consists of 32 bits of 1's to be 64 bits - // of ones - switch (addr_size) - { - case 2: - if (begin == 0xFFFFull) - begin = LLDB_INVALID_ADDRESS; - break; + lldb::offset_t range_offset = *offset_ptr; + const DWARFDataExtractor &debug_ranges_data = + dwarf2Data->get_debug_ranges_data(); + uint32_t addr_size = debug_ranges_data.GetAddressByteSize(); - case 4: - if (begin == 0xFFFFFFFFull) - begin = LLDB_INVALID_ADDRESS; - break; + while ( + debug_ranges_data.ValidOffsetForDataOfSize(*offset_ptr, 2 * addr_size)) { + dw_addr_t begin = debug_ranges_data.GetMaxU64(offset_ptr, addr_size); + dw_addr_t end = debug_ranges_data.GetMaxU64(offset_ptr, addr_size); + if (!begin && !end) { + // End of range list + break; + } + // Extend 4 byte addresses that consists of 32 bits of 1's to be 64 bits + // of ones + switch (addr_size) { + case 2: + if (begin == 0xFFFFull) + begin = LLDB_INVALID_ADDRESS; + break; - case 8: - break; + case 4: + if (begin == 0xFFFFFFFFull) + begin = LLDB_INVALID_ADDRESS; + break; - default: - assert(!"DWARFRangeList::Extract() unsupported address size."); - break; - } + case 8: + break; - // Filter out empty ranges - if (begin < end) - range_list.Append(DWARFRangeList::Entry(begin, end - begin)); + default: + assert(!"DWARFRangeList::Extract() unsupported address size."); + break; } - // Make sure we consumed at least something - return range_offset != *offset_ptr; -} - + // Filter out empty ranges + if (begin < end) + range_list.Append(DWARFRangeList::Entry(begin, end - begin)); + } -void -DWARFDebugRanges::Dump(Stream &s, const DWARFDataExtractor& debug_ranges_data, lldb::offset_t *offset_ptr, dw_addr_t cu_base_addr) -{ - uint32_t addr_size = s.GetAddressByteSize(); - bool verbose = s.GetVerbose(); + // Make sure we consumed at least something + return range_offset != *offset_ptr; +} - dw_addr_t base_addr = cu_base_addr; - while (debug_ranges_data.ValidOffsetForDataOfSize(*offset_ptr, 2 * addr_size)) - { - dw_addr_t begin = debug_ranges_data.GetMaxU64(offset_ptr, addr_size); - dw_addr_t end = debug_ranges_data.GetMaxU64(offset_ptr, addr_size); - // Extend 4 byte addresses that consists of 32 bits of 1's to be 64 bits - // of ones - if (begin == 0xFFFFFFFFull && addr_size == 4) - begin = LLDB_INVALID_ADDRESS; +void DWARFDebugRanges::Dump(Stream &s, + const DWARFDataExtractor &debug_ranges_data, + lldb::offset_t *offset_ptr, + dw_addr_t cu_base_addr) { + uint32_t addr_size = s.GetAddressByteSize(); + bool verbose = s.GetVerbose(); - s.Indent(); - if (verbose) - { - s.AddressRange(begin, end, sizeof (dw_addr_t), " offsets = "); - } + dw_addr_t base_addr = cu_base_addr; + while ( + debug_ranges_data.ValidOffsetForDataOfSize(*offset_ptr, 2 * addr_size)) { + dw_addr_t begin = debug_ranges_data.GetMaxU64(offset_ptr, addr_size); + dw_addr_t end = debug_ranges_data.GetMaxU64(offset_ptr, addr_size); + // Extend 4 byte addresses that consists of 32 bits of 1's to be 64 bits + // of ones + if (begin == 0xFFFFFFFFull && addr_size == 4) + begin = LLDB_INVALID_ADDRESS; + s.Indent(); + if (verbose) { + s.AddressRange(begin, end, sizeof(dw_addr_t), " offsets = "); + } - if (begin == 0 && end == 0) - { - s.PutCString(" End"); - break; - } - else if (begin == LLDB_INVALID_ADDRESS) - { - // A base address selection entry - base_addr = end; - s.Address(base_addr, sizeof (dw_addr_t), " Base address = "); - } - else - { - // Convert from offset to an address - dw_addr_t begin_addr = begin + base_addr; - dw_addr_t end_addr = end + base_addr; + if (begin == 0 && end == 0) { + s.PutCString(" End"); + break; + } else if (begin == LLDB_INVALID_ADDRESS) { + // A base address selection entry + base_addr = end; + s.Address(base_addr, sizeof(dw_addr_t), " Base address = "); + } else { + // Convert from offset to an address + dw_addr_t begin_addr = begin + base_addr; + dw_addr_t end_addr = end + base_addr; - s.AddressRange(begin_addr, end_addr, sizeof (dw_addr_t), verbose ? " ==> addrs = " : NULL); - } + s.AddressRange(begin_addr, end_addr, sizeof(dw_addr_t), + verbose ? " ==> addrs = " : NULL); } + } } -bool -DWARFDebugRanges::FindRanges(dw_offset_t debug_ranges_offset, DWARFRangeList& range_list) const -{ - range_map_const_iterator pos = m_range_map.find(debug_ranges_offset); - if (pos != m_range_map.end()) - { - range_list = pos->second; - return true; - } - return false; +bool DWARFDebugRanges::FindRanges(dw_addr_t debug_ranges_base, + dw_offset_t debug_ranges_offset, + DWARFRangeList &range_list) const { + dw_addr_t debug_ranges_address = debug_ranges_base + debug_ranges_offset; + range_map_const_iterator pos = m_range_map.find(debug_ranges_address); + if (pos != m_range_map.end()) { + range_list = pos->second; + return true; + } + return false; } - - - |