#!/bin/sed -nf

# should not have been exported at all
/#define[[:space:]]\+__NR_\(sys_epoll_\|arch_specific_syscall\|syscalls\|syscall_count\|syscall_max\|available\|reserved\|unused\)/d

# should not be named this way
s/__NR_\(arm\|xtensa\)_fadvise64_64/__NR_fadvise64_64/

# legacy names
s/__NR_get_cpu/__NR_getcpu/
s/__NR_madvise1/__NR_madvise/
s/__NR_paccept/__NR_accept4/

# generate
s/#define[[:space:]]\+__NR_\([a-z_][^[:space:]]\+\)\([[:space:]].*\)\?$/#ifdef __NR_\1\n[__NR_\1 \& 0xffff] = "\1",\n#endif/p