Created attachment 616 [details] 复现用例 Description of problem: mktime函数返回结果错误；同样的小例子，anolis86环境上返回92，ubuntu环境上返回255 Version-Release number of selected component (if applicable): How reproducible: gcc mktime.c ; ./a.out ; echo $? Actual results: anolis86环境上返回92 yansendao@aqa-tests:[SuperTest]> gcc mktime.c ; ./a.out ; echo $? 255 yansendao@aqa-tests:[SuperTest]> gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/home/yansendao/gcc/gcc-12.1.0/install/libexec/gcc/x86_64-pc-linux-gnu/12.1.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: configure --prefix=/home/yansendao/gcc/gcc-12.1.0/install --enable-lto --disable-multilib Thread model: posix Supported LTO compression algorithms: zlib gcc version 12.1.0 (GCC) yansendao@aqa-tests:[SuperTest]> cat /etc/os-release NAME="Ubuntu" VERSION="20.04.4 LTS (Focal Fossa)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 20.04.4 LTS" VERSION_ID="20.04" HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" VERSION_CODENAME=focal UBUNTU_CODENAME=focal yansendao@aqa-tests:[SuperTest]> uname -a Linux aqa-tests 5.4.0-110-generic #124-Ubuntu SMP Thu Apr 14 19:46:19 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux yansendao@aqa-tests:[SuperTest]> cat mktime.c #include <time.h> int main() { struct tm tval = { -1, -1, -1, -1, -1, -1, -1, -1, 1 }; return mktime( & tval ); } Expected results: ubuntu环境上返回255 yansendao@aqa-tests:[SuperTest]> /usr/bin/gcc mktime.c ; ./a.out ; echo $? 255 yansendao@aqa-tests:[SuperTest]> /usr/bin/gcc -v Using built-in specs. COLLECT_GCC=/usr/bin/gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/9/lto-wrapper OFFLOAD_TARGET_NAMES=nvptx-none:hsa OFFLOAD_TARGET_DEFAULT=1 Target: x86_64-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Ubuntu 9.4.0-1ubuntu1~20.04.1' --with-bugurl=file:///usr/share/doc/gcc-9/README.Bugs --enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++,gm2 --prefix=/usr --with-gcc-major-version-only --program-suffix=-9 --program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib --with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-offload-targets=nvptx-none=/build/gcc-9-Av3uEd/gcc-9-9.4.0/debian/tmp-nvptx/usr,hsa --without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu Thread model: posix gcc version 9.4.0 (Ubuntu 9.4.0-1ubuntu1~20.04.1) yansendao@aqa-tests:[SuperTest]> cat /etc/os-release NAME="Ubuntu" VERSION="20.04.4 LTS (Focal Fossa)" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 20.04.4 LTS" VERSION_ID="20.04" HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" VERSION_CODENAME=focal UBUNTU_CODENAME=focal yansendao@aqa-tests:[SuperTest]> uname -a Linux aqa-tests 5.4.0-110-generic #124-Ubuntu SMP Thu Apr 14 19:46:19 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux Additional info: