4. Nuclei Toolchain

• 4.1. GNU Toolchain
  • 4.1.1. About GNU Toolchain
  • 4.1.2. Extensions Support
  • 4.1.3. General Options
  • 4.1.4. Nuclei Custom Options
  • 4.1.5. Libraries
  • 4.1.6. Changelog
  • 4.1.7. Install and Setup
  • 4.1.8. Testsuite
  • 4.1.9. Checking GNU Version
  • 4.1.10. Known Issues
    • 4.1.10.1. sscanf Format Specifiers Issue in Newlib-nano
    • 4.1.10.2. GDB RISC-V Memory Access at Address 0 When Symbols Are Missing
    • 4.1.10.3. Access to Address 0 Is Compiled Into ebreak
    • 4.1.10.4. naked Attribute With Variadic Functions Is Not Supported
    • 4.1.10.5. -Wa,-adhlns Breaks the Frame Unwind Information for GDB Debugging
  • 4.1.11. Nuclei Custom BFloat16 Extension
    • 4.1.11.1. Introduction
    • 4.1.11.2. Register Configuration
    • 4.1.11.3. BF16 Scalar Support
    • 4.1.11.4. BF16 Vector Support (RVV Intrinsics)
  • 4.1.12. Nuclei Custom VPU Extension
    • 4.1.12.1. Introduction
    • 4.1.12.2. Extension
    • 4.1.12.3. Supported Instructions
    • 4.1.12.4. Intrinsic Naming Convention
    • 4.1.12.5. Nuclei Custom Intrinsics
    • 4.1.12.6. Examples
  • 4.1.13. Nuclei Custom Xxlvw Extension
    • 4.1.13.1. Introduction
    • 4.1.13.2. Extension
    • 4.1.13.3. Supported Instructions
    • 4.1.13.4. Intrinsic Naming Convention
    • 4.1.13.5. Nuclei Custom Intrinsics
    • 4.1.13.6. Examples
• 4.2. LLVM Toolchain
  • 4.2.1. About LLVM Toolchain
  • 4.2.2. Extensions Support
  • 4.2.3. General Options
  • 4.2.4. Install and Setup
  • 4.2.5. Changelog
  • 4.2.6. Checking LLVM Version
  • 4.2.7. Known Issues
    • 4.2.7.1. Nuclei -mtune support bug in the LLVM 2025.10 toolchain
• 4.3. Changelog
  • 4.3.1. Version 2026.10
  • 4.3.2. Version 2025.10
  • 4.3.3. Version 2025.02
  • 4.3.4. Version 2024.06