Add support for reading DWARF-5 info

mentioned in issue infrastructure/apertis-issues#360 (closed)

added 1 commit

2e229b22 - Release dwarf2sources version 0.2.3

Tested with:

With DWARF-4:

$ gcc  -g -gdwarf-4 -ffile-prefix-map=/home/andrunko/work/imx-code-signing-tool=. -o csf_parser csf_parser.c extract_csf.c
$ objdump -W csf_parser| grep comp_dir
    <15>   DW_AT_comp_dir    : (indirect string, offset: 0xdc): ./code/hab_csf_parser
    <1531>   DW_AT_comp_dir    : (indirect string, offset: 0xdc): ./code/hab_csf_parser
    DW_AT_comp_dir     DW_FORM_strp
    DW_AT_comp_dir     DW_FORM_strp
$ rm -f foo.json && dwarf2sources -o foo.json ./csf_parser
$ cat foo.json 
{"./csf_parser":{"units":[{"comp_dir":"./code/hab_csf_parser","comp_name":"csf_parser.c"},{"comp_dir":"./code/hab_csf_parser","comp_name":"extract_csf.c"}]}}

With DWARF-5:

$ gcc  -g -ffile-prefix-map=/home/andrunko/work/imx-code-signing-tool=. -o csf_parser csf_parser.c extract_csf.c
$ objdump -W csf_parser| grep comp_dir
    <16>   DW_AT_comp_dir    : (indirect line string, offset: 0xd): ./code/hab_csf_parser
    <144c>   DW_AT_comp_dir    : (indirect line string, offset: 0xd): ./code/hab_csf_parser
    DW_AT_comp_dir     DW_FORM_line_strp
    DW_AT_comp_dir     DW_FORM_line_strp
$ rm -f foo.json && dwarf2sources -o foo.json ./csf_parser
$ cat foo.json 
{"./csf_parser":{"units":[{"comp_dir":"./code/hab_csf_parser","comp_name":"csf_parser.c"},{"comp_dir":"./code/hab_csf_parser","comp_name":"extract_csf.c"}]}}

added 2 commits

558f8f28 - Add support for reading DWARF-5 info
e81edd59 - Release dwarf2sources version 0.2.3

Compare with previous version

From section 7.4.3 of https://dwarfstd.org/doc/DWARF5.pdf:

DW_FORM_line_strp offset in .debug_line_str
...
DW_FORM_strp offset in .debug_str

Add support for reading DWARF-5 info

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