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<rdar://problem/10413589>

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Fixed a potential crasher where we weren't checking we got a valid DIE in
a compile unit.

llvm-svn: 145226
This commit is contained in:
Greg Clayton 2011-11-28 03:29:03 +00:00
parent cbe1a331ae
commit 129d12c00c
1 changed files with 22 additions and 19 deletions
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41
lldb/source/Plugins/SymbolFile/DWARF/SymbolFileDWARF.cpp
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@ -1007,27 +1007,30 @@ SymbolFileDWARF::ParseCompileUnitLineTable (const SymbolContext &sc)
if (dwarf_cu)
{
const DWARFDebugInfoEntry *dwarf_cu_die = dwarf_cu->GetCompileUnitDIEOnly();
const dw_offset_t cu_line_offset = dwarf_cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_stmt_list, DW_INVALID_OFFSET);
if (cu_line_offset != DW_INVALID_OFFSET)
if (dwarf_cu_die)
{
std::auto_ptr<LineTable> line_table_ap(new LineTable(sc.comp_unit));
if (line_table_ap.get())
const dw_offset_t cu_line_offset = dwarf_cu_die->GetAttributeValueAsUnsigned(this, dwarf_cu, DW_AT_stmt_list, DW_INVALID_OFFSET);
if (cu_line_offset != DW_INVALID_OFFSET)
{
ParseDWARFLineTableCallbackInfo info = {
line_table_ap.get(),
m_obj_file->GetSectionList(),
0,
0,
m_debug_map_symfile != NULL,
false,
DWARFDebugLine::Row(),
SectionSP(),
SectionSP()
};
uint32_t offset = cu_line_offset;
DWARFDebugLine::ParseStatementTable(get_debug_line_data(), &offset, ParseDWARFLineTableCallback, &info);
sc.comp_unit->SetLineTable(line_table_ap.release());
return true;
std::auto_ptr<LineTable> line_table_ap(new LineTable(sc.comp_unit));
if (line_table_ap.get())
{
ParseDWARFLineTableCallbackInfo info = {
line_table_ap.get(),
m_obj_file->GetSectionList(),
0,
0,
m_debug_map_symfile != NULL,
false,
DWARFDebugLine::Row(),
SectionSP(),
SectionSP()
};
uint32_t offset = cu_line_offset;
DWARFDebugLine::ParseStatementTable(get_debug_line_data(), &offset, ParseDWARFLineTableCallback, &info);
sc.comp_unit->SetLineTable(line_table_ap.release());
return true;
}
}
}
}