void
DWARFDebugRanges::Dump(Stream &s, const DataExtractor& debug_ranges_data, uint32_t* offset_ptr, dw_addr_t cu_base_addr)
{
uint32_t addr_size = s.GetAddressByteSize();
bool verbose = s.GetVerbose();
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 consits of 32 bits of 1's to be 64 bits
// of ones
if (begin == 0xFFFFFFFFull && addr_size == 4)
begin = DW_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 == DW_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);
}
}
}
//----------------------------------------------------------------------
// DumpCallback
//
// A callback function for the static DWARFDebugInfo::Parse() function
// that gets called each time a compile unit header or debug information
// entry is successfully parsed.
//
// This function dump DWARF information and obey recurse depth and
// whether a single DIE is to be dumped (or all of the data).
//----------------------------------------------------------------------
static dw_offset_t DumpCallback
(
SymbolFileDWARF* dwarf2Data,
DWARFCompileUnit* cu,
DWARFDebugInfoEntry* die,
const dw_offset_t next_offset,
const uint32_t curr_depth,
void* userData
)
{
DumpInfo* dumpInfo = (DumpInfo*)userData;
Stream *s = dumpInfo->strm;
bool show_parents = s->GetFlags().Test(DWARFDebugInfo::eDumpFlag_ShowAncestors);
if (die)
{
// Are we dumping everything?
if (dumpInfo->die_offset == DW_INVALID_OFFSET)
{
// Yes we are dumping everything. Obey our recurse level though
if (curr_depth < dumpInfo->recurse_depth)
die->Dump(dwarf2Data, cu, *s, 0);
}
else
{
// We are dumping a specific DIE entry by offset
if (dumpInfo->die_offset == die->GetOffset())
{
// We found the DIE we were looking for, dump it!
if (show_parents)
{
s->SetIndentLevel(0);
const uint32_t num_ancestors = dumpInfo->ancestors.size();
if (num_ancestors > 0)
{
for (uint32_t i=0; i<num_ancestors-1; ++i)
{
dumpInfo->ancestors[i].Dump(dwarf2Data, cu, *s, 0);
s->IndentMore();
}
}
}
dumpInfo->found_depth = curr_depth;
die->Dump(dwarf2Data, cu, *s, 0);
// Note that we found the DIE we were looking for
dumpInfo->found_die = true;
// Since we are dumping a single DIE, if there are no children we are done!
if (!die->HasChildren() || dumpInfo->recurse_depth == 0)
return DW_INVALID_OFFSET; // Return an invalid address to end parsing
}
else if (dumpInfo->found_die)
{
// Are we done with all the children?
if (curr_depth <= dumpInfo->found_depth)
return DW_INVALID_OFFSET;
// We have already found our DIE and are printing it's children. Obey
// our recurse depth and return an invalid offset if we get done
// dumping all of the children
if (dumpInfo->recurse_depth == UINT32_MAX || curr_depth <= dumpInfo->found_depth + dumpInfo->recurse_depth)
die->Dump(dwarf2Data, cu, *s, 0);
}
else if (dumpInfo->die_offset > die->GetOffset())
{
if (show_parents)
dumpInfo->ancestors.back() = *die;
}
}
// Keep up with our indent level
if (die->IsNULL())
{
if (show_parents)
dumpInfo->ancestors.pop_back();
if (curr_depth <= 1)
return cu->GetNextCompileUnitOffset();
else
s->IndentLess();
}
else if (die->HasChildren())
{
if (show_parents)
{
DWARFDebugInfoEntry null_die;
dumpInfo->ancestors.push_back(null_die);
}
s->IndentMore();
}
}
else
{
if (cu == NULL)
s->PutCString("NULL - cu");
// We have a compile unit, reset our indent level to zero just in case
s->SetIndentLevel(0);
// See if we are dumping everything?
if (dumpInfo->die_offset == DW_INVALID_OFFSET)
{
// We are dumping everything
if (cu)
{
cu->Dump(s);
return cu->GetFirstDIEOffset(); // Return true to parse all DIEs in this Compile Unit
}
else
{
return DW_INVALID_OFFSET;
}
}
else
{
if (show_parents)
{
dumpInfo->ancestors.clear();
dumpInfo->ancestors.resize(1);
}
// We are dumping only a single DIE possibly with it's children and
// we must find it's compile unit before we can dump it properly
if (cu && dumpInfo->die_offset < cu->GetFirstDIEOffset())
{
// Not found, maybe the DIE offset provided wasn't correct?
// *ostrm_ptr << "DIE at offset " << HEX32 << dumpInfo->die_offset << " was not found." << endl;
return DW_INVALID_OFFSET;
}
else
{
// See if the DIE is in this compile unit?
if (cu && dumpInfo->die_offset < cu->GetNextCompileUnitOffset())
{
// This DIE is in this compile unit!
if (s->GetVerbose())
cu->Dump(s); // Dump the compile unit for the DIE in verbose mode
return next_offset;
// // We found our compile unit that contains our DIE, just skip to dumping the requested DIE...
// return dumpInfo->die_offset;
}
else
{
// Skip to the next compile unit as the DIE isn't in the current one!
if (cu)
{
return cu->GetNextCompileUnitOffset();
}
else
{
return DW_INVALID_OFFSET;
}
}
}
}
}
// Just return the current offset to parse the next CU or DIE entry
return next_offset;
}
void
DWARFFormValue::Dump(Stream &s, const DWARFDataExtractor* debug_str_data, const DWARFCompileUnit* cu) const
{
uint64_t uvalue = Unsigned();
bool cu_relative_offset = false;
bool verbose = s.GetVerbose();
switch (m_form)
{
case DW_FORM_addr: s.Address(uvalue, sizeof (uint64_t)); break;
case DW_FORM_flag:
case DW_FORM_data1: s.PutHex8(uvalue); break;
case DW_FORM_data2: s.PutHex16(uvalue); break;
case DW_FORM_sec_offset:
case DW_FORM_data4: s.PutHex32(uvalue); break;
case DW_FORM_ref_sig8:
case DW_FORM_data8: s.PutHex64(uvalue); break;
case DW_FORM_string: s.QuotedCString(AsCString(NULL)); break;
case DW_FORM_exprloc:
case DW_FORM_block:
case DW_FORM_block1:
case DW_FORM_block2:
case DW_FORM_block4:
if (uvalue > 0)
{
switch (m_form)
{
case DW_FORM_exprloc:
case DW_FORM_block: s.Printf("<0x%" PRIx64 "> ", uvalue); break;
case DW_FORM_block1: s.Printf("<0x%2.2x> ", (uint8_t)uvalue); break;
case DW_FORM_block2: s.Printf("<0x%4.4x> ", (uint16_t)uvalue); break;
case DW_FORM_block4: s.Printf("<0x%8.8x> ", (uint32_t)uvalue); break;
default: break;
}
const uint8_t* data_ptr = m_value.data;
if (data_ptr)
{
const uint8_t* end_data_ptr = data_ptr + uvalue; // uvalue contains size of block
while (data_ptr < end_data_ptr)
{
s.Printf("%2.2x ", *data_ptr);
++data_ptr;
}
}
else
s.PutCString("NULL");
}
break;
case DW_FORM_sdata: s.PutSLEB128(uvalue); break;
case DW_FORM_udata: s.PutULEB128(uvalue); break;
case DW_FORM_strp:
if (debug_str_data)
{
if (verbose)
s.Printf(" .debug_str[0x%8.8x] = ", (uint32_t)uvalue);
const char* dbg_str = AsCString(debug_str_data);
if (dbg_str)
s.QuotedCString(dbg_str);
}
else
{
s.PutHex32(uvalue);
}
break;
case DW_FORM_ref_addr:
{
if (cu->GetVersion() <= 2)
s.Address(uvalue, sizeof (uint64_t) * 2);
else
s.Address(uvalue, 4 * 2);// 4 for DWARF32, 8 for DWARF64, but we don't support DWARF64 yet
break;
}
case DW_FORM_ref1: cu_relative_offset = true; if (verbose) s.Printf("cu + 0x%2.2x", (uint8_t)uvalue); break;
case DW_FORM_ref2: cu_relative_offset = true; if (verbose) s.Printf("cu + 0x%4.4x", (uint16_t)uvalue); break;
case DW_FORM_ref4: cu_relative_offset = true; if (verbose) s.Printf("cu + 0x%4.4x", (uint32_t)uvalue); break;
case DW_FORM_ref8: cu_relative_offset = true; if (verbose) s.Printf("cu + 0x%8.8" PRIx64, uvalue); break;
case DW_FORM_ref_udata: cu_relative_offset = true; if (verbose) s.Printf("cu + 0x%" PRIx64, uvalue); break;
// All DW_FORM_indirect attributes should be resolved prior to calling this function
case DW_FORM_indirect: s.PutCString("DW_FORM_indirect"); break;
case DW_FORM_flag_present: break;
default:
s.Printf("DW_FORM(0x%4.4x)", m_form);
break;
}
if (cu_relative_offset)
{
if (verbose)
s.PutCString(" => ");
s.Printf("{0x%8.8" PRIx64 "}", (uvalue + (cu ? cu->GetOffset() : 0)));
}
}