sys_recvfrom 808 include/linux/syscalls.h asmlinkage long sys_recvfrom(int, void __user *, size_t, unsigned, sys_recvfrom 607 include/uapi/asm-generic/unistd.h __SC_COMP(__NR_recvfrom, sys_recvfrom, compat_sys_recvfrom) sys_recvfrom 607 tools/include/uapi/asm-generic/unistd.h __SC_COMP(__NR_recvfrom, sys_recvfrom, compat_sys_recvfrom)