I created https://groups.google.com/g/generic-abi/c/satyPkuMisk ("Add new ch_type value: ELFCOMPRESS_ZSTD") after I saw that on LLVM side, Cole Kissane proposes that we add Zstandard as new compression method (mainly for .debug* sections, but also for some LLVM internal things) https://discourse.llvm.org/t/rfc-zstandard-as-a-second-compression-method-to-llvm/63399
This makes a lot of sense to me as I know compression/uncompression takes a lot of compile/link time. If people agree that this is a good direction, I wish that we can have a generic-abi value: ELFCOMPRESS_ZSTD 2. If that does not work, perhaps we need a GNU ABI value. We will need features from a bunch of tools: * GCC/Clang: perhaps we can introduce a new driver option -gz=zstd * GNU assembler: add --compress-debug-sections=zstd * GNU ld: add --compress-debug-sections=zstd * objcopy/llvm-objcopy: add --compress-debug-sections=zstd * gdb: support Zstandard * elfutils: support Zstandard
