add gpio

hc

2023-12-04 f33f61bdb7ca6d5ebe7a78f9d8694b91360279ac

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vdso.lds
vdsox32.lds
vdso32-syscall-syms.lds
vdso32-sysenter-syms.lds
vdso32-int80-syms.lds
vdso-image-*.c
vdso2c