[riscv64-8u]hotspot/make/linux/makefiles/.make: No such file or directory

[sendaoYan]

gmake[6]: Leaving directory '/home/yansendao/git/riscv-port-jdk8u-ysd/build/linux-riscv64-normal-server-release/hotspot/linux_riscv_compiler2/product'
touch linux_riscv_compiler2/product
gmake[5]: Leaving directory '/home/yansendao/git/riscv-port-jdk8u-ysd/build/linux-riscv64-normal-server-release/hotspot'
cd linux_riscv_compiler2/product && /usr/bin/gmake  VERBOSE="" LOG_LEVEL="debug" -R -I /home/yansendao/git/riscv-port-jdk8u-ysd/make/common -rR -I/home/yansendao/git/riscv-port-jdk8u-ysd/make/common -j1 " LP64=1 "
gmake[5]: Entering directory '/home/yansendao/git/riscv-port-jdk8u-ysd/build/linux-riscv64-normal-server-release/hotspot/linux_riscv_compiler2/product'
flags.make:124: /home/yansendao/git/riscv-port-jdk8u-ysd/hotspot/make/linux/makefiles/.make: No such file or directory
gmake[5]: *** No rule to make target '/home/yansendao/git/riscv-port-jdk8u-ysd/hotspot/make/linux/makefiles/.make'.  Stop.
gmake[5]: Leaving directory '/home/yansendao/git/riscv-port-jdk8u-ysd/build/linux-riscv64-normal-server-release/hotspot/linux_riscv_compiler2/product'
gmake[4]: *** [/home/yansendao/git/riscv-port-jdk8u-ysd/hotspot/make/linux/Makefile:284: product] Error 2
gmake[4]: Leaving directory '/home/yansendao/git/riscv-port-jdk8u-ysd/build/linux-riscv64-normal-server-release/hotspot'
gmake[3]: *** [Makefile:231: generic_build2] Error 2
gmake[3]: Leaving directory '/home/yansendao/git/riscv-port-jdk8u-ysd/hotspot/make'
gmake[2]: *** [Makefile:177: product] Error 2
gmake[2]: Leaving directory '/home/yansendao/git/riscv-port-jdk8u-ysd/hotspot/make'
gmake[1]: *** [HotspotWrapper.gmk:45: /home/yansendao/git/riscv-port-jdk8u-ysd/build/linux-riscv64-normal-server-release/hotspot/_hotspot.timestamp] Error 2
gmake[1]: Leaving directory '/home/yansendao/git/riscv-port-jdk8u-ysd/make'
make: *** [/home/yansendao/git/riscv-port-jdk8u-ysd//make/Main.gmk:110: hotspot-only] Error 2

make.log flags.make.log