>On 5/25/26 10:02 AM, Wentao Guan wrote: >>> Additionally, many distributions already switched to gendwarfksyms last >>> year. Unless someone provides a good reason to keep genksyms around, >>> I expect it will be deprecated soon and eventually removed. It would be >>> more valuable to show whether the same optimization is worthwhile for >>> gendwarfksyms. >> I see gendwarfksyms use crc32 from <zlib.h>, which from zlib1g-dev and >> zlib1g. > > Ah, I forgot about this, so gendwarfksyms should already be well > optimized. I think that is the most important thing.
Which way do you prefer? There are two ways now: 1. this work, 2. import zlib like gendwarfksyms and remove the huge crctab, but need make sure any arch do not cause performance regression? (Assert the user libs precompile with +crc32 is right?) I do some early tests show that: 1) zlib in x86 fast than genksym software 2) zlib in arm64 debian precompile slow than genksym software(crc32 not in armv8) 3) zlib in arm64 recompile with +crc32 same speed with genksyms hardware BRs Wentao Guan
