exit.c:(.text+0x18): undefined reference to `_exit' when using arm-none-eabi-gcc

Question

I\'m new to the field of microcontrollers. I need to port an IDE which is compiling programs for AVR microcontrollers to compile programs for ARM microcontrollers. I have ju

Answer 1

I had the same problem. The solution was as follows:

• Add options -ffreestanding -flto into compiler call line.
• And add options -flto -ffreestanding -nostdlib into linker call line.