skilld
All skills
nvidia avatar

/jetson-build-source

@87053a0
by NVIDIA Corporationnvidia/skills3.5k stars
427

Use when you need to rebuild the BSP overlay — DT, OOT modules, or kernel — from changes under bsp_sources/. Triggers: build bsp, rebuild dtb, rebuild kernel.

Requires /jetson-promote-image /jetson-init-image /jetson-init-source /jetson-set-target /jetson-init-target

Ask your Agent

Use this Skill: https://skilld.dev/gh/nvidia/skills/jetson-build-source

This session only. Nothing lands on disk.

referencesupstream-recipe.md

≈856 tokens on demand. Your agent reads this file only when SKILL.md points to it.

Upstream NVIDIA Build Recipe (reference)

Reference material for ../SKILL.md — the verbatim NVIDIA build recipe this skill drives + the three deliberate divergences.

NVIDIA's Jetson Linux Developer Guide

→ Kernel Customization in the Developer Guide for the active BSP release is the authoritative source. The current online archive lives under https://docs.nvidia.com/jetson/archives/ — pick the release that matches the workspace's bsp_image.version and follow Software Development → Kernel → Kernel Customization. Verbatim official steps (paths adjusted to use <install-path> as NVIDIA writes it):

# Prerequisites
sudo apt install git build-essential bc flex bison libssl-dev zstd

# Build kernel
cd <install-path>/Linux_for_Tegra/source
export CROSS_COMPILE=<toolchain-path>/aarch64-none-linux-gnu/bin/aarch64-none-linux-gnu-
make -C kernel

# Install kernel
export INSTALL_MOD_PATH=<install-path>/Linux_for_Tegra/rootfs/
sudo -E make install -C kernel
cp kernel/kernel-noble/arch/arm64/boot/Image \
  <install-path>/Linux_for_Tegra/kernel/Image

# Build + install OOT modules
export KERNEL_HEADERS=$PWD/kernel/kernel-noble
export kernel_name=noble
make modules
sudo -E make modules_install
cd <install-path>/Linux_for_Tegra && sudo ./tools/l4t_update_initrd.sh

# Build + install DTBs
cd <install-path>/Linux_for_Tegra/source
make dtbs
cp kernel-devicetree/generic-dts/dtbs/* \
  <install-path>/Linux_for_Tegra/kernel/dtb/

Three divergences from this skill

NVIDIA's docs This skill
$PWD == Linux_for_Tegra/source $PWD == $KS == <source.root_path>/bsp_sources (workspace-side checkout, not the BSP-shipped source tree). The user's customize-* edits live in $KS.
cp / sudo install writes directly into bsp_image Outputs stay in-tree under $KS; jetson-build-source writes a manifest, jetson-promote-image does the bsp_image copy under Deploy.
Always builds full chain (kernel → modules → dtbs) Build modes (dt/oot/kernel/full) match the dirty-repo profile; skips unaffected legs.

The build commands themselves are identical — this skill just points them at the workspace source root and skips legs the dirty set doesn't imply.

Spec status

Locked in for v0.x:

  • Build modes — dt, oot, kernel, full, plus auto-dispatch from the dirty repo set; manual selection via the argument-hint skill argument.
  • Toolchain ownership — jetson-init-source resolves and authors source.toolchain; this skill reads only.
  • Env / repo-list source of truth — kernel_src_build_env.sh sourced from the extracted BSP.
  • Build driver — drive NVIDIA's Linux_for_Tegra/source/Makefile
    • kernel/Makefile against $KS. Do not replicate nvidia-dtbs / modules / kernel recipes in skill code.
  • No overlay staging. Build outputs stay in-tree; the manifest at $MANIFEST is the contract to jetson-promote-image.
  • Dirty-repo detection — watermark file .build-state.yaml comparing per-repo HEADs, plus working-tree diff for uncommitted edits.
  • Trace-to-dirty manifest policy — manifest emits only artifacts whose source files map to a dirty repo's kbuild target. Baseline-divergence noise is filtered out.
  • Install consolidation — opt-in for dt/oot/kernel modes, default-on for full. User-owned stage dir, no sudo.

Source: SKILL.md on GitHub

Third-party checks

No alerts3mo3 checks · Risk SAFE
  • Gen Agent Trust Hub3mo

    The 'jetson-build-source' skill is a legitimate development tool for rebuilding NVIDIA Jetson kernel-side artifacts. It uses standard build utilities and follows established NVIDIA development workflows without exhibiting malicious patterns.

  • Socket3mo

    No alerts

  • Snyk3mo

    Risk: LOW · No issues

Provenance

Signed by skilld at 87053a0. This ties the file your Agent reads to that commit on GitHub. It does not review the instructions.

Last checked against GitHub 1 hour ago.

Activeupdated 3 months ago

Capability

version
0.0.1
argument-hint
dt | oot | kernel | full
Other metadata
metadata
{
  "data-classification": "public",
  "author": "Jetson Team",
  "team": "pts",
  "tags": [
    "bsp",
    "build"
  ],
  "domain": "meta"
}

README badge

README badge for nvidia/skills/jetson-build-source