binutils Newspaper
JUNE 15, 2026
risc-v Ready to Land

RISC-V: improve a subset parsing diagnostic

Improves an error message in RISC-V subset parsing to include the specific invalid extension.

This patch enhances an error message in the RISC-V subset parsing code to include the specific invalid ISA extension that caused the error. This makes it easier for users to identify and correct problems in their assembler code. The improved diagnostic now reports the specific item along with the full argument.

In the Thread 1 participant
  1. Jiawei contributor

    Agrees with the patch, noting that including the specific invalid subset improves clarity.

    “Including the specific invalid subset makes this diagnostic easier to understand when the full subset argument is long.”

In Details

This patch improves the diagnostics in the RISC-V subset parsing code. Clear error messages are crucial for developers to understand and fix issues in their code. This change makes the assembler more user-friendly.

For Context

This patch improves the error messages generated by the RISC-V assembler when it encounters an invalid instruction set extension. By including the name of the invalid extension in the error message, the assembler makes it easier for developers to identify and fix the problem in their code.

Filed Under: binutilsrisc-vsubset parsingerror messagediagnostics