Group the decoded system calls by ABI and sort the calls within each ABI.

[jhb]

Summary

Group the decoded system calls by ABI and sort the calls within each ABI.

I originally was just going to use a single sorted list, but I think it
is better to group the calls by ABI. Once I make a first pass adding more
decodings for the native ABI I plan to add decoding for freebsd32 to match
all the calls handled in the native ABI.

Test Plan

• Compared truss output of my system call exerciser for amd64 and i386 binaries under amd64.

[kib]

I never realized how truss matches syscall to the table. Doing it by name is somewhat ridiculous, but I see the point.

If you keep the table ordered alphabetically, you could use binary search instead of linear.

[bdrewery]

In D3823#78888, @kib wrote:

I never realized how truss matches syscall to the table. Doing it by name is somewhat ridiculous, but I see the point.

If you keep the table ordered alphabetically, you could use binary search instead of linear.

This table isn't used for searching anymore. It's in a separate dynamic list which has unknown syscalls added to it as discovered. I'm working on making that list into a hash table.