Hi, I have a custom implementation of memcpy() function and don't want to use implementation provided by libc.a. Things works fine with toolchain version 12.3 and my local implementation in utils.c is considered. But when I move to toolchain version 14.2 , I am getting below error.
Linking ... /opt/arm-gnu-toolchain-*-aarch64-none-elf/bin/aarch64-none-elf-gcc \ -nodefaultlibs \ -nostartfiles \ -mcpu=cortex-a55 \ -Wl,--gc-sections \ -Wl,--build-id=none \ -T /opt/test.lds \ -Wl,-Map=/opt/test.map \ -Wl,--no-warn-rwx-segments \ /opt/test.o /opt/utils.o \ -L /opt/arm-gnu-toolchain-*-aarch64-none-elf/aarch64-none-elf/lib \ -Wl,--start-group -l:libc.a -l:libgcc.a -Wl,--end-group \ -o /opt/test.elf /opt/arm-gnu-toolchain-14.2.rel1-x86_64-aarch64-none-elf/bin/../lib/gcc/aarch64-none-elf/14.2.1/../../../../aarch64-none-elf/bin/ld: /opt/arm-gnu-toolchain-14.2.rel1-x86_64-aarch64-none-elf/aarch64-none-elf/lib/libc.a(libc_a-memcpy.o): in function `memcpy': /data/jenkins/workspace/GNU-toolchain/arm-14/src/newlib-cygwin/newlib/libc/machine/aarch64/memcpy.S:60: multiple definition of `memcpy'; /opt/utils.o:/opt/utils.c:247: first defined here collect2: error: ld returned 1 exit status make: *** [Makefile:282: linkobj] Error 1 Need help on how to use custom implementation of memcpy() (but use all other standard functions from libc.a). Also, any idea on why the issue is with 14.2 and not with earlier versions (like 12.3) ? Regards,
