GCC_CFLAGS = -Os   -mcmodel=medlow -DIN_GCC  -DCROSS_DIRECTORY_STRUCTURE  -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include 
INHIBIT_LIBC_CFLAGS = -Dinhibit_libc
TARGET_SYSTEM_ROOT = /opt/riscv/riscv32-unknown-elf
NO_PIE_CFLAGS =