Toolchain halation map

Expose LTO and aggressive optimize flags that hide latent UB.

Cover visual for Toolchain halation map

Duration

14 business days

Format

Remote

Investment

₩11,800,000

Platform

Zephyr

Scope

We bisect compiler flags against a frozen test suite, document miscompiles or timing shifts, and recommend conservative defaults for production.

Included analyses

  • Flag matrix with size/speed deltas
  • UBSan triage playbook
  • LTO partition strategy
  • Linker script diff review
  • CI gate proposal for compiler bumps

Outcomes you can publish internally

  1. Flag recommendation memo
  2. CI gate snippet
  3. Risky pattern catalog

Lead advisor

Portrait for Noah Lee

Noah Lee

Systems validation lead for toolchain-sensitive stacks.

FAQ

Compiler brands?

ARM GCC, IAR, and LLVM—pick the one you standardize on.

Binary size?

We track text/rodata/data; bss assumptions validated with your linker map.

Out of scope?

No kernel-mode host tooling unless separately contracted.

Experience notes

“The toolchain halation map saved us from flipping LTO without a bisect plan.”

— Joon , Build engineer