diff options
Diffstat (limited to 'lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp')
| -rw-r--r-- | lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp index f09151c7acf..0e31cbb45c8 100644 --- a/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp +++ b/lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp @@ -21,6 +21,7 @@ #include "lldb/Core/PluginManager.h" #include "lldb/Core/Section.h" #include "lldb/Core/Stream.h" +#include "lldb/Symbol/DWARFCallFrameInfo.h" #include "lldb/Symbol/SymbolContext.h" #include "lldb/Host/Host.h" @@ -1513,6 +1514,57 @@ ObjectFileELF::GetSymtab() return m_symtab_ap.get(); } +Symbol * +ObjectFileELF::ResolveSymbolForAddress(const Address& so_addr, bool verify_unique) +{ + if (!m_symtab_ap.get()) + return nullptr; // GetSymtab() should be called first. + + const SectionList *section_list = GetSectionList(); + if (!section_list) + return nullptr; + + if (DWARFCallFrameInfo *eh_frame = GetUnwindTable().GetEHFrameInfo()) + { + AddressRange range; + if (eh_frame->GetAddressRange (so_addr, range)) + { + const addr_t file_addr = range.GetBaseAddress().GetFileAddress(); + Symbol * symbol = verify_unique ? m_symtab_ap->FindSymbolContainingFileAddress(file_addr) : nullptr; + if (symbol) + return symbol; + + // Note that a (stripped) symbol won't be found by GetSymtab()... + lldb::SectionSP eh_sym_section_sp = section_list->FindSectionContainingFileAddress(file_addr); + if (eh_sym_section_sp.get()) + { + addr_t section_base = eh_sym_section_sp->GetFileAddress(); + addr_t offset = file_addr - section_base; + uint64_t symbol_id = m_symtab_ap->GetNumSymbols(); + + Symbol eh_symbol( + symbol_id, // Symbol table index. + "???", // Symbol name. + false, // Is the symbol name mangled? + eSymbolTypeCode, // Type of this symbol. + true, // Is this globally visible? + false, // Is this symbol debug info? + false, // Is this symbol a trampoline? + true, // Is this symbol artificial? + eh_sym_section_sp, // Section in which this symbol is defined or null. + offset, // Offset in section or symbol value. + range.GetByteSize(), // Size in bytes of this symbol. + true, // Size is valid. + 0); // Symbol flags. + if (symbol_id == m_symtab_ap->AddSymbol(eh_symbol)) + return m_symtab_ap->SymbolAtIndex(symbol_id); + } + } + } + return nullptr; +} + + bool ObjectFileELF::IsStripped () { |
