minimize the size of symbol file

[lilili87222]

Is your feature request related to a problem? Please describe.

command
ipsw dyld extract dyld_shared_cache_arm64 --all --output /Users/xxx/Desktop/extracted

this command extract dyld file ,but those files is larger than those create by xcode.
for example, DriverKit,file create by xcode is 512k,while file create by ipsw is 2M.

The impact of this is the symbol file size if very large if I extract all . about 20G,while files create by xcode only 2G-4G

Describe the solution you'd like

Can this extract file that minimize the size ?

Describe alternatives you've considered

Can this extract file that minimize the size ?

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