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Informational 17 Bitcoin

lvgl-sys: remove cmake build

BB6a279a9b View source ↗
Public commit record

What the developer wrote

Authored by Niklas Dusenlund

68/100 · Adequate
lvgl-sys: remove cmake build

Build LVGL directly with cc from an explicit source list and drop the
cmake crate dependency. Use the shared bitbox-lvgl-sys lv_conf.h for the
BB03 graphical simulator and remove the simulator-specific duplicate
config.

Remove cross compilation support in lvgl-sys for now.
✓ Descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context
The short version

What changed, and why it matters

This commit changes how a graphics library (LVGL) is compiled into the BitBox02 firmware build. It removes the CMake-based build and instead compiles the library's C source files directly using Rust's cc crate. It also merges a separate simulator-specific configuration file into a shared one. The visible configuration changes are: color depth increased from 16 to 32 bits, refresh period shortened from 33 ms to 17 ms, and log level changed from warnings to informational messages. These are build-system and configuration cleanups; there is no direct evidence in the commit of a security vulnerability being fixed.

Recommended action

Treat as a routine build-system and configuration maintenance commit. Review the new LVGL_C_FILES list for completeness and ensure the merged lv_conf.h still matches the intended hardware and simulator behavior. No security-specific action is required based on the supplied materials.

Security signals we found

01

Build-system refactor with dependency removal (cmake crate)

02

Configuration convergence: single lv_conf.h for firmware and graphical simulator

03

Functional config changes (color depth, refresh period, log level) are not security fixes

04

No changes to input validation, cryptography, memory allocation, or secure-storage code

Risk score

Why this scored 17/100

Our methodology →
Potential impact 2/30
Exploitability 1/25
Stealth signal 1/15
Affected reach 2/15
Confidence 8/10
Evidence quality 3/5
Human-validated context

Community notes

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