4ee76a922a
Summary:
Currently these function return the raw content of the appropriate table
header, which means they are relative to the DW_AT_{loc,rng}list_base,
and one has to relocate them in order to do anything.
This changes the functions to perform the relocation themselves, which
seems more clearer, particularly as they are sitting right next to the
find{Rng,Loc}listFromOffset functions, but one *cannot* simply take the
result of these functions and take pass them there.
The only effect of this patch is to change what value is dumped for the
DW_AT_ranges attribute, which I think is for the better, as previously
the values appeared to point into thin air.
(The main reason I am looking at this is because I was trying to
implement equivalent functionality in lldb's DWARFUnit, and was stumped
by this behavior.
Reviewers: dblaikie, JDevlieghere, aprantl
Subscribers: hiraditya, llvm-commits, SouraVX
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D71006
52 lines
2.3 KiB
ArmAsm
52 lines
2.3 KiB
ArmAsm
# RUN: llvm-mc %s -filetype obj -triple=x86_64-pc-linux -o %t.o
|
|
# RUN: llvm-dwarfdump -v %t.o | FileCheck %s -match-full-lines
|
|
|
|
## Ensure bogus empty section names are not printed when dumping
|
|
## rnglists that reference debug_addr when it is not present (such as in .dwo files)
|
|
|
|
# CHECK: DW_AT_ranges [DW_FORM_rnglistx] (indexed (0x0) rangelist = 0x00000010
|
|
# CHECK-NEXT: [0x0000000000000000, 0x0000000000000001)
|
|
# CHECK-NEXT: [0x0000000000000000, 0x0000000000000002))
|
|
|
|
.section .debug_info.dwo,"e",@progbits
|
|
.long .Ldebug_info_dwo_end1-.Ldebug_info_dwo_start1 # Length of Unit
|
|
.Ldebug_info_dwo_start1:
|
|
.short 5 # DWARF version number
|
|
.byte 5 # DWARF Unit Type
|
|
.byte 8 # Address Size (in bytes)
|
|
.long 0 # Offset Into Abbrev. Section
|
|
.quad -6809755978868859807
|
|
.byte 1 # Abbrev [1] 0x14:0x32 DW_TAG_compile_unit
|
|
.byte 0 # DW_AT_ranges
|
|
.Ldebug_info_dwo_end1:
|
|
|
|
.section .debug_abbrev.dwo,"e",@progbits
|
|
.byte 1 # Abbreviation Code
|
|
.byte 17 # DW_TAG_compile_unit
|
|
.byte 0 # DW_CHILDREN_no
|
|
.byte 85 # DW_AT_ranges
|
|
.byte 35 # DW_FORM_rnglistx
|
|
.byte 0 # EOM(1)
|
|
.byte 0 # EOM(2)
|
|
|
|
.section .debug_rnglists.dwo,"e",@progbits
|
|
.long .Ldebug_rnglist_table_end1-.Ldebug_rnglist_table_start1 # Length
|
|
.Ldebug_rnglist_table_start1:
|
|
.short 5 # Version
|
|
.byte 8 # Address size
|
|
.byte 0 # Segment selector size
|
|
.long 1 # Offset entry count
|
|
.Lrnglists_dwo_table_base0:
|
|
.long .Ldebug_ranges0-.Lrnglists_dwo_table_base0
|
|
.Ldebug_ranges0:
|
|
.byte 1 # DW_RLE_base_addressx
|
|
.byte 0 # base address index
|
|
.byte 4 # DW_RLE_offset_pair
|
|
.byte 0 # starting offset
|
|
.byte 1 # ending offset
|
|
.byte 3 # DW_RLE_startx_length
|
|
.byte 1 # start index
|
|
.byte 2 # length
|
|
.byte 0 # DW_RLE_end_of_list
|
|
.Ldebug_rnglist_table_end1:
|