Add xcc700 and rcc700 compiler apps

[KenVanHoeylandt]

Summary by CodeRabbit

• New Features
  • Added two mini C compiler apps for ESP32: rcc700 generates RV32 ELF files, and xcc700 generates Xtensa ELF files.
  • Both accept a C source file and an optional output path; without one, the output filename uses the .elf extension.
  • Each compiler supports a subset of C and reports build statistics.
• Bug Fixes
  • Updated list-view test icons to use the default shared icon font.
• Documentation
  • Added usage instructions, supported-feature details, and licensing information for both apps.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

• Configuration used: Organization UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: 81a15d86-50e4-4bed-809a-243f7f0b53b4

📥 Commits

Reviewing files that changed from the base of the PR and between bd71a2f and e0aeb62.

📒 Files selected for processing (2)

• Apps/M5UnitTest/main/Source/TestListView.cpp
• LICENSE.md

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📝 Walkthrough

Walkthrough

Adds two self-hosting mini C compiler apps. xcc700 emits Xtensa code, and rcc700 emits RV32 code. Each app includes SDK and component configuration, a Tactility wrapper for command-line arguments and file flags, app metadata, and documentation. The compiler implementations parse supported C constructs and generate ELF output. The change also updates the repository license statement and the icon font used by a list-view unit test.

Priority: ⬇️ Low

Merge Risk: 🟡 Moderate · up to e0aeb

Long tokens in source files can corrupt compiler memory or disrupt compilation in either new app. Add bounds checks before merging.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 19.47% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 113 functions across 5 files. (1 skipped:…	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the main change: adding the xcc700 and rcc700 compiler apps.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 19.47% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 113 functions across 5 files. (1 skipped: 1 unsupported.)

• Fix all pre-merge checks with AI

✨ Finishing Touches 💡 1

📝 Generate docstrings 💡

• Commit to this branch
• Create a new PR

🧪 Generate unit tests (beta)

• Commit to this branch
• Create a new PR

• Autopilot · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

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[coderabbitai]

Actionable comments posted: 3

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ℹ️ Review info

⚙️ Run configuration

• Configuration used: Organization UI
• Review profile: CHILL
• Plan: Advanced
• Run ID: 6ffca81a-72c6-4dc5-93ec-75fbba026ce5

📥 Commits

Reviewing files that changed from the base of the PR and between 9c05145 and bd71a2f.

📒 Files selected for processing (14)

• Apps/Rcc700/CMakeLists.txt
• Apps/Rcc700/LICENSE
• Apps/Rcc700/README.md
• Apps/Rcc700/main/CMakeLists.txt
• Apps/Rcc700/main/Source/rcc700.c
• Apps/Rcc700/main/Source/tactility.c
• Apps/Rcc700/manifest.properties
• Apps/Xcc700/CMakeLists.txt
• Apps/Xcc700/LICENSE
• Apps/Xcc700/README.md
• Apps/Xcc700/main/CMakeLists.txt
• Apps/Xcc700/main/Source/tactility.c
• Apps/Xcc700/main/Source/xcc700.c
• Apps/Xcc700/manifest.properties

Included review availability: This review used your included allowance. Your plan provides up to 1 included review per hour; 0 remain after this review.

[KenVanHoeylandt]

@valdanylchuk If you are ever in the neighbourhood of Amsterdam, I owe you a coffee (at the very least).
Thanks for the super useful compiler projects!