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
    • 4.1.11.3.1. Extension
    • 4.1.11.3.2. Supported Instructions
    • 4.1.11.3.3. Examples
  • 4.1.11.4. BF16 Vector Support (RVV Intrinsics)
    • 4.1.11.4.1. Extension
    • 4.1.11.4.2. Nuclei BF16 RVV Intrinsic Naming Scheme
    • 4.1.11.4.3. RVV Instructions Supported by Nuclei BF16
    • 4.1.11.4.4. RVV Intrinsics Supported by Nuclei BF16
    • 4.1.11.4.5. Examples
• 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