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binutils: dwarf.c handle DWARF5 DW_LLE_start_end and DW_LLE_start_length.

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display_loclists_list only handled DW_LLE_offset_pair as bounded
location description. Also handle DW_LLE_start_end and DW_LLE_start_lenght.
These don't use the base_address.

binutils/ChangeLog:

      * dwarf.c (display_loclists_list): Handle DW_LLE_start_end and
      DW_LLE_start_length. Only add base_address for DW_LLE_offset_pair.
This commit is contained in:
Mark Wielaard 2020-09-29 00:02:06 +02:00
parent 9aed480c3a
commit 1c9f770d16
2 changed files with 24 additions and 4 deletions
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5
binutils/ChangeLog
View File

@ -1,3 +1,8 @@
2020-09-29 Mark Wielaard <mark@klomp.org>
* dwarf.c (display_loclists_list): Handle DW_LLE_start_end and
DW_LLE_start_length. Only add base_address for DW_LLE_offset_pair.
2020-09-25 Alan Modra <amodra@gmail.com>
* elfcomm.c (byte_put_little_endian, byte_put_big_endian): Support

23
binutils/dwarf.c
View File

@ -6055,7 +6055,9 @@ display_loclists_list (struct dwarf_section *section,
SAFE_BYTE_GET_AND_INC (llet, start, 1, section_end);
if (vstart && llet == DW_LLE_offset_pair)
if (vstart && (llet == DW_LLE_offset_pair
|| llet == DW_LLE_start_end
|| llet == DW_LLE_start_length))
{
off = offset + (vstart - *start_ptr);
@ -6076,7 +6078,18 @@ display_loclists_list (struct dwarf_section *section,
break;
case DW_LLE_offset_pair:
READ_ULEB (begin, start, section_end);
begin += base_address;
READ_ULEB (end, start, section_end);
end += base_address;
break;
case DW_LLE_start_end:
SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, section_end);
SAFE_BYTE_GET_AND_INC (end, start, pointer_size, section_end);
break;
case DW_LLE_start_length:
SAFE_BYTE_GET_AND_INC (begin, start, pointer_size, section_end);
READ_ULEB (end, start, section_end);
end += begin;
break;
case DW_LLE_base_address:
SAFE_BYTE_GET_AND_INC (base_address, start, pointer_size,
@ -6103,7 +6116,9 @@ display_loclists_list (struct dwarf_section *section,
}
if (llet == DW_LLE_end_of_list)
break;
if (llet != DW_LLE_offset_pair)
if (llet != DW_LLE_offset_pair
&& llet != DW_LLE_start_end
&& llet != DW_LLE_start_length)
continue;
if (start + 2 > section_end)
@ -6115,8 +6130,8 @@ display_loclists_list (struct dwarf_section *section,
READ_ULEB (length, start, section_end);
print_dwarf_vma (begin + base_address, pointer_size);
print_dwarf_vma (end + base_address, pointer_size);
print_dwarf_vma (begin, pointer_size);
print_dwarf_vma (end, pointer_size);
putchar ('(');
need_frame_base = decode_location_expression (start,