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fix: Build with -fno-exceptions (#1412)

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## Summary

**What is the goal of this PR?**

Until today, I sincerely thought we were building without exception
support. The codebase is not set up with any exception handling
infrastructure. The SKILL.md file specifies no exceptions.

I just learned that we actually were building with exceptions enabled,
with `-fexceptions` coming from
~/.platformio/packages/framework-arduinoespressif32-libs/esp32c3/pioarduino-build.py.

This change removes the `-fexceptions` flag and adds `-fno-exceptions`.
The result is **53,670 bytes in flash savings**.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**NO**_
This commit is contained in:
Zach Nelson
2026-03-18 11:41:18 -05:00
committed by GitHub
parent 99721c081b
commit d6951f81b7
1 changed files with 2 additions and 0 deletions
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2
platformio.ini
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@@ -36,9 +36,11 @@ build_flags =
-DPNG_MAX_BUFFERED_PIXELS=16416 -DPNG_MAX_BUFFERED_PIXELS=16416
-Wno-bidi-chars -Wno-bidi-chars
-Wl,--wrap=panic_print_backtrace,--wrap=panic_abort -Wl,--wrap=panic_print_backtrace,--wrap=panic_abort
-fno-exceptions
build_unflags = build_unflags =
-std=gnu++11 -std=gnu++11
-fexceptions
; Board configuration ; Board configuration
board_build.flash_mode = dio board_build.flash_mode = dio