On 9/25/23 00:11, Kyle Huey via Dwarf-discuss wrote:
Most likely the .debug_info section is SHF_COMPRESSED. Try compiling
with -gz=none.
Also note that there are different approaches that have been used.
If the section content starts with "ZLIB"
a struct is present and the content is zlib/libz
compressed. (I find the naming hard to keep straight,
libz/zlib meaning the same thing, link it in with -lz).
The Elf section name may start with .z, as for example
.zdebug_info for the .debug_info section
meaning .debug_info is libz compressed.
Using section (Elf) flag SHF_COMPRESSED
a struct begins the section with a type and size
libz case ELFCOMPRESS_ZLIB
libzstd case ELFCOMPRESS_ZSTD (link it in with -lzstd)
Hopefully you will not need to handle more than one case.
David Anderson
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