gem5.opt 编译不过

[qqli579]

用这个命令编译scons ./build/RISCV/gem5.opt -j 64，报下面的错误：

In file included from build/RISCV/arch/generic/pcstate.hh:49,
                 from build/RISCV/arch/generic/isa.hh:45,
                 from build/RISCV/arch/riscv/isa.hh:39,
                 from build/RISCV/arch/riscv/tlb.hh:38,
                 from build/RISCV/arch/riscv/tlb.cc:32:
build/RISCV/arch/riscv/tlb.cc: In member function ‘gem5::Fault gem5::RiscvISA::TLB::doTranslate(const RequestPtr&, gem5::ThreadContext*, gem5::BaseMMU::Translation*, gem5::BaseMMU::Mode, bool&)’:
build/RISCV/base/trace.hh:188:54: error: ‘paddr’ may be used uninitialized [-Werror=maybe-uninitialized]
  188 |         ::gem5::Trace::getDebugLogger()->dprintf_flag(   \
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~
  189 |             ::gem5::curTick(), name(), #x, __VA_ARGS__); \
      |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
build/RISCV/arch/riscv/tlb.cc:1436:9: note: in expansion of macro ‘DPRINTF’
 1436 |         DPRINTF(TLB, "translate(vpn=%#x, asid=%#x): %#x pc%#x\n", vaddr,
      |         ^~~~~~~
build/RISCV/base/trace.hh:75:10: note: by argument 8 of type ‘const long unsigned int&’ to ‘void gem5::Trace::Logger::dprintf_flag(gem5::Tick, const string&, const string&, const char*, const Args& ...) [with Args = {long unsigned int, gem5::BitfieldType<gem5::bitfield_backend::Unsigned<long unsigned int, 59, 44> >, long unsigned int, long unsigned int}]’ declared here
   75 |     void dprintf_flag(Tick when, const std::string &name,
      |          ^~~~~~~~~~~~
build/RISCV/arch/riscv/tlb.cc:1264:10: note: ‘paddr’ declared here
 1264 |     Addr paddr;

用的xs-dev 分支。 还有你们的香山核在gem5里就是DerivO3CPU吗？

[shinezyy]

未来的版本会修复该问题。 对，用的是DerivO3CPU

[shinezyy]

可以参考这个pr进行修复：

https://github.com/OpenXiangShan/GEM5/pull/43