24.22.8.1. gem5 THE_ISA

Generated code at: build/<ISA>/config/the_isa.hh which e.g. for ARM contains:

#ifndef __CONFIG_THE_ISA_HH__
#define __CONFIG_THE_ISA_HH__

#define ARM_ISA 1
#define MIPS_ISA 2
#define NULL_ISA 3
#define POWER_ISA 4
#define RISCV_ISA 5
#define SPARC_ISA 6
#define X86_ISA 7

enum class Arch {
  ArmISA = ARM_ISA,
  MipsISA = MIPS_ISA,
  NullISA = NULL_ISA,
  PowerISA = POWER_ISA,
  RiscvISA = RISCV_ISA,
  SparcISA = SPARC_ISA,
  X86ISA = X86_ISA
};

#define THE_ISA ARM_ISA
#define TheISA ArmISA
#define THE_ISA_STR "arm"

#endif // __CONFIG_THE_ISA_HH__

Generation code: src/SConscript at def makeTheISA.

Tested on gem5 b1623cb2087873f64197e503ab8894b5e4d4c7b4.