我安装了所有依赖项（git，g ++，python，zlib，m4，protobuf，swig和pydot）并从“https://raw.githubusercontent.com/arm-university/arm-gem5-rsk/master/clone.sh $ bash clone.sh”克隆了gem5项目。当我尝试使用“scons build / ARM / gem5.opt”构建它时，会出现以下错误：
In file included from build/ARM/arch/arm/semihosting.cc:40:
build/ARM/arch/arm/semihosting.hh:267:31: error: constexpr function
never produces a constant expression
[-Winvalid-constexpr]
static constexpr RetErrno retError(SemiErrno e) {
^
build/ARM/arch/arm/semihosting.hh:268:16: note: non-constexpr
constructor 'pair<unsigned long long, unsigned long
long &, false>' cannot be used in a constant expression
return RetErrno((uint64_t)-1, e);
^
/Library/Developer/CommandLineTools/usr/include/c++/v1/utility:436:5:
note: declared here
pair(_U1&& __u1, _U2&& __u2)
^
In file included from build/ARM/arch/arm/semihosting.cc:40:
build/ARM/arch/arm/semihosting.hh:271:31: error: constexpr function
never produces a constant expression
[-Winvalid-constexpr]
static constexpr RetErrno retOK(uint64_t r) {
^
build/ARM/arch/arm/semihosting.hh:272:16: note: non-constexpr
constructor 'pair<unsigned long long &, int, false>'
cannot be used in a constant expression
return RetErrno(r, 0);
^
/Library/Developer/CommandLineTools/usr/include/c++/v1/utility:436:5:
note: declared here
pair(_U1&& __u1, _U2&& __u2)
^
build/ARM/arch/arm/semihosting.cc:474:18: warning: 'tmpnam' is
deprecated: This function is provided for
compatibility reasons only. Due to security concerns inherent in the
design of tmpnam(3), it is highly
recommended that you use mkstemp(3) instead. [-Wdeprecated-
declarations]
char *path = tmpnam(buf.data());
^
/usr/include/stdio.h:186:1: note: 'tmpnam' has been explicitly marked
deprecated here
__deprecated_msg("This function is provided for compatibility reasons
only. Due to security concerns inheren...
^
/usr/include/sys/cdefs.h:180:48: note: expanded from macro
'__deprecated_msg'
#define __deprecated_msg(_msg) __attribute__((deprecated(_msg)))
我需要安装gem5模拟器，我该如何修复它们？
我通过在filegem5 / src / arch / arm / semihosting.hh中将constexpr更改为const来修复错误。