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Shrink sysent from 48 to 32 bytes
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Authored by trasz on Sep 21 2020, 12:52 PM.

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Summary

Shrink sysent from 48 to 32 bytes by shrinking some entries and reordering them.

This depends on https://reviews.freebsd.org/D26530.

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Repository
rS FreeBSD src repository
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Automatic diff as part of commit; lint not applicable.
Unit
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

You can shrink it to 32 bytes:
sy_nargs can be uint8_t, we definitely do not need more than 255 arguments
sy_flags can be uint8_t as well.

trasz retitled this revision from Shrink sysent from 48 to 40 bytes to Shrink sysent from 48 to 32 bytes.Wed, Sep 23, 2:02 PM
trasz edited the summary of this revision. (Show Details)

Note in the commit message that 48->32 is for LP64, for ILP32 it seems to be 32->28 (but I could miscount).

This revision is now accepted and ready to land.Wed, Sep 23, 3:05 PM