SIMD-0431: Loader V3: Minimum Extend Program Size

[buffalojoec]

Problem

SIMD-0431 adds a minimum size requirement to the Loader V3 program. The program must be updated to enforce this check once the feature is enabled.

Summary of Changes

Implements SIMD-0431 by adding a check for the extension size's minimuim requirement.

The additional_bytes requested must be at least 10 KiB (MINIMUM_EXTEND_PROGRAM_BYTES), unless the account is smaller than MAX_PERMITTED_DATA_LEN - MINIMUM_EXTEND_PROGRAM_BYTES, in which case additional_bytes must equal the headroom.

[mergify]

The Firedancer team maintains a line-for-line reimplementation of the
native programs, and until native programs are moved to BPF, those
implementations must exactly match their Agave counterparts.
If this PR represents a change to a native program implementation (not
tests), please include a reviewer from the Firedancer team. And please
keep refactors to a minimum.

[joncinque]

The program change and tests look great!

The CI failures look legit, since they're from CLI tests that extend programs. Most likely those tests are using numbers that are too small.

[buffalojoec]

The program change and tests look great!

The CI failures look legit, since they're from CLI tests that extend programs. Most likely those tests are using numbers that are too small.

Yeah, whoops I forgot I'd also have to handle the CLI in this same change. Added one more commit for that!

[codecov-commenter]

Codecov Report

❌ Patch coverage is 20.45455% with 35 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.1%. Comparing base (4bdffa6) to head (abf53b8).
⚠️ Report is 19 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##           master    #9859     +/-   ##
=========================================
- Coverage    83.1%    83.1%   -0.1%     
=========================================
  Files         861      861             
  Lines      322079   322122     +43     
=========================================
- Hits       267922   267865     -57     
- Misses      54157    54257    +100     

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[joncinque]

Looks great! Just the tiny nit on the error, but you can take it or leave it

[joncinque]

Looks good, just a merge conflict now

[joncinque]

Looks great to me!

[buffalojoec]

Sorry @joncinque I had to rebase onto #11685. Also @Lichtso need SVM approval for merge.

[joncinque]

Looks great to me!