__NR_read           7 arch/x86/include/generated/uapi/asm/unistd_32.h #define __NR_read 3
__NR_read           4 arch/x86/include/generated/uapi/asm/unistd_64.h #define __NR_read 0
__NR_read           4 arch/x86/include/generated/uapi/asm/unistd_x32.h #define __NR_read (__X32_SYSCALL_BIT + 0)