How to extend Risc-V P extension in riscv-gcc and riscv-binutils?

• riscv-binutils-gdb

  4 139 9.8 C

  Discontinued RISC-V backports for binutils-gdb. Development is done upstream at the FSF.

  

binutils: https://github.com/riscvarchive/riscv-binutils-gdb/pull/257

• riscv-gcc

  3 359 0.0
  

gcc: https://github.com/riscv-collab/riscv-gcc/pull/258

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• binutils-gdb

  1 2 9.8 C

My recent upstream commit (itself) is slightly old (because some handlings have changed since), so I'll propose this draft Zfb implementation for reference when you add instructions.

• riscv-opcodes

  5 615 7.7 Python

  RISC-V Opcodes

  

Add instruction's match and mask values and optionally add DECLARE_INSN definitions (include/opcode/riscv-opc.h). You can use riscv-opcodes to generate those mask/match values.

• riscv-binutils-devmemo

  1 0 3.5 Python

  binutils development memo (for RISC-V)

Add CSRs to the testsuite (gas/testsuite/gas/riscv/csr-dw-regnums.s and gas/testsuite/gas/riscv/csr.s) and update expected results updating ... many files. This is exhausting and I even made a script to do that (csr-new.py in my internal Binutils maintenance scripts; you will need to modify csr-new.py to support new CSR classes)

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