else:
self._dump_debug_rangesection(di, range_lists_sec)
+ def _dump_debug_rnglists_CU_header(self, cu):
+ self._emitline(' Table at Offset: %s:' % self._format_hex(cu.cu_offset, alternate=True))
+ self._emitline(' Length: %s' % self._format_hex(cu.unit_length, alternate=True))
+ self._emitline(' DWARF version: %d' % cu.version)
+ self._emitline(' Address size: %d' % cu.address_size)
+ self._emitline(' Segment size: %d' % cu.segment_selector_size)
+ self._emitline(' Offset entries: %d\n' % cu.offset_count)
+ if cu.offsets and len(cu.offsets):
+ self._emitline(' Offsets starting at 0x%x:' % cu.offset_table_offset)
+ for i_offset in enumerate(cu.offsets):
+ self._emitline(' [%6d] 0x%x' % i_offset)
+
def _dump_debug_rangesection(self, di, range_lists_sec):
# Last amended to match readelf 2.41
ver5 = range_lists_sec.version >= 5
addr_width = addr_size * 2 # In hex digits, 8 or 16
line_template = " %%08x %%0%dx %%0%dx %%s" % (addr_width, addr_width)
base_template = " %%08x %%0%dx (base address)" % (addr_width)
+ base_template_indexed = " %%08x %%0%dx (base address index) %%0%dx (base address)" % (addr_width, addr_width)
# In order to determine the base address of the range
# We need to know the corresponding CU.
cu_map = {die.attributes['DW_AT_ranges'].value : cu # Range list offset => CU
for cu in di.iter_CUs()
for die in cu.iter_DIEs()
- if 'DW_AT_ranges' in die.attributes}
-
- if ver5: # Dump by CUs - unsure at this point what does readelf do, ranges dump is buggy in 2.41
- self._emitline('Contents of the %s section:\n\n\n' % section_name)
- for cu in range_lists_sec.iter_CUs():
- self._emitline(' Table at Offset: %s:' % self._format_hex(cu.cu_offset, alternate=True))
- self._emitline(' Length: %s' % self._format_hex(cu.unit_length, alternate=True))
- self._emitline(' DWARF version: %d' % cu.version)
- self._emitline(' Address size: %d' % cu.address_size)
- self._emitline(' Segment size: %d' % cu.segment_selector_size)
- self._emitline(' Offset entries: %d\n' % cu.offset_count)
- # Is the offset table dumped too?
- for (i, range_list) in enumerate(range_lists_sec.iter_CU_range_lists_ex(cu)):
- list_offset = range_list[0].entry_offset
- range_list = list(range_lists_sec.translate_v5_entry(entry, cu_map[list_offset]) for entry in range_list)
- self._emitline(' Offset: %s, Index: %d' % (self._format_hex(list_offset, alternate=True), i))
- self._emitline(' Offset Begin End')
- self._dump_rangelist(range_list, cu_map, ver5, line_template, base_template)
- else: # Dump by DIE reference offset
- range_lists = list(range_lists_sec.iter_range_lists())
- if len(range_lists) == 0:
- # Present but empty ranges section - readelf outputs a message
- self._emitline("\nSection '%s' has no debugging data." % section_name)
- return
-
- self._emitline('Contents of the %s section:\n\n\n' % section_name)
+ if 'DW_AT_ranges' in die.attributes}
+
+ rcus = list(range_lists_sec.iter_CUs()) if ver5 else None
+ rcu_index = 0
+ next_rcu_offset = 0
+
+ range_lists = list(range_lists_sec.iter_range_lists())
+ if len(range_lists) == 0:
+ # Present but empty ranges section - readelf outputs a message
+ self._emitline("\nSection '%s' has no debugging data." % section_name)
+ return
+
+ self._emitline('Contents of the %s section:\n\n\n' % section_name)
+ if not ver5:
self._emitline(' Offset Begin End')
- for range_list in range_lists:
- if len(range_list) == 0: # working around a bogus behavior in readelf 2.41
- # No entries means no offset. Dirty hack: peek the stream position
- range_list_offset = range_lists_sec.stream.tell() - self._dwarfinfo.config.default_address_size*2
- self._emitline(' %08x <End of list>' % (range_list_offset))
- else:
- self._dump_rangelist(range_list, cu_map, ver5, line_template, base_template)
+ for range_list in range_lists:
+ # Emit CU headers before the curernt rangelist
+ if ver5 and range_list[0].entry_offset > next_rcu_offset:
+ while range_list[0].entry_offset > next_rcu_offset:
+ rcu = rcus[rcu_index]
+ self._dump_debug_rnglists_CU_header(rcu)
+ next_rcu_offset = rcu.offset_after_length + rcu.unit_length
+ rcu_index += 1
+ self._emitline(' Offset Begin End')
+ self._dump_rangelist(range_list, cu_map, ver5, line_template, base_template, base_template_indexed, range_lists_sec)
+
+ # TODO: trailing empty CUs, if any?
- def _dump_rangelist(self, range_list, cu_map, ver5, line_template, base_template):
+ def _dump_rangelist(self, range_list, cu_map, ver5, line_template, base_template, base_template_indexed, range_lists_sec):
# Weird discrepancy in binutils: for DWARFv5 it outputs entry offset,
# for DWARF<=4 list offset.
first = range_list[0]
base_ip = _get_cu_base(cu_map[first.entry_offset])
+ raw_v5_rangelist = None
for entry in range_list:
if isinstance(entry, RangeEntry):
postfix = ' (start == end)' if entry.begin_offset == entry.end_offset else ''
postfix))
elif isinstance(entry,RangeBaseAddressEntry):
base_ip = entry.base_address
- self._emitline(base_template % (
- entry.entry_offset if ver5 else first.entry_offset,
- entry.base_address))
+ # V5 base entries with index are reported differently in readelf - need to go back to the raw V5 format
+ # Maybe other subtypes too, but no such cases in the test corpus
+ raw_v5_entry = None
+ if ver5:
+ if not raw_v5_rangelist:
+ raw_v5_rangelist = range_lists_sec.get_range_list_at_offset_ex(range_list[0].entry_offset)
+ raw_v5_entry = next(re for re in raw_v5_rangelist if re.entry_offset == entry.entry_offset)
+ if raw_v5_entry and raw_v5_entry.entry_type == 'DW_RLE_base_addressx':
+ self._emitline(base_template_indexed % (
+ entry.entry_offset,
+ raw_v5_entry.index,
+ entry.base_address))
+ else:
+ self._emitline(base_template % (
+ entry.entry_offset if ver5 else first.entry_offset,
+ entry.base_address))
else:
raise NotImplementedError("Unknown object in a range list")
last = range_list[-1]
projects / pyelftools.git / commitdiff