ubuntu12.04 /usr/include/asm-generic/unistd.h 中的系统调用号是错的?

在ubuntu12.04的 /usr/include/asm-generic/unistd.h 文件中内容如下:

#define __NR_io_setup 0
__SC_COMP(__NR_io_setup, sys_io_setup, compat_sys_io_setup)
#define __NR_io_destroy 1
__SYSCALL(__NR_io_destroy, sys_io_destroy)
#define __NR_io_submit 2
__SC_COMP(__NR_io_submit, sys_io_submit, compat_sys_io_submit)
#define __NR_io_cancel 3
__SYSCALL(__NR_io_cancel, sys_io_cancel)
#define __NR_io_getevents 4
__SC_COMP(__NR_io_getevents, sys_io_getevents, compat_sys_io_getevents)

/* fs/xattr.c */
#define __NR_setxattr 5
__SYSCALL(__NR_setxattr, sys_setxattr)
#define __NR_lsetxattr 6
__SYSCALL(__NR_lsetxattr, sys_lsetxattr)
#define __NR_fsetxattr 7
__SYSCALL(__NR_fsetxattr, sys_fsetxattr)
#define __NR_getxattr 8
__SYSCALL(__NR_getxattr, sys_getxattr)
#define __NR_lgetxattr 9
__SYSCALL(__NR_lgetxattr, sys_lgetxattr)
#define __NR_fgetxattr 10
__SYSCALL(__NR_fgetxattr, sys_fgetxattr)
#define __NR_listxattr 11
__SYSCALL(__NR_listxattr, sys_listxattr)
#define __NR_llistxattr 12
__SYSCALL(__NR_llistxattr, sys_llistxattr)
#define __NR_flistxattr 13
__SYSCALL(__NR_flistxattr, sys_flistxattr)
#define __NR_removexattr 14
__SYSCALL(__NR_removexattr, sys_removexattr)
#define __NR_lremovexattr 15
__SYSCALL(__NR_lremovexattr, sys_lremovexattr)
#define __NR_fremovexattr 16
__SYSCALL(__NR_fremovexattr, sys_fremovexattr)

/* fs/dcache.c */
#define __NR_getcwd 17
__SYSCALL(__NR_getcwd, sys_getcwd)

/* fs/cookies.c */
#define __NR_lookup_dcookie 18
__SC_COMP(__NR_lookup_dcookie, sys_lookup_dcookie, compat_sys_lookup_dcookie)

/* fs/eventfd.c */
#define __NR_eventfd2 19
__SYSCALL(__NR_eventfd2, sys_eventfd2)

/* fs/eventpoll.c */
#define __NR_epoll_create1 20
__SYSCALL(__NR_epoll_create1, sys_epoll_create1)
#define __NR_epoll_ctl 21
__SYSCALL(__NR_epoll_ctl, sys_epoll_ctl)
#define __NR_epoll_pwait 22
__SC_COMP(__NR_epoll_pwait, sys_epoll_pwait, compat_sys_epoll_pwait)

/* fs/fcntl.c */
#define __NR_dup 23
__SYSCALL(__NR_dup, sys_dup)
#define __NR_dup3 24
__SYSCALL(__NR_dup3, sys_dup3)
#define __NR3264_fcntl 25
__SC_COMP_3264(__NR3264_fcntl, sys_fcntl64, sys_fcntl, compat_sys_fcntl64)

/* fs/inotify_user.c */
#define __NR_inotify_init1 26
__SYSCALL(__NR_inotify_init1, sys_inotify_init1)
#define __NR_inotify_add_watch 27
__SYSCALL(__NR_inotify_add_watch, sys_inotify_add_watch)
#define __NR_inotify_rm_watch 28
__SYSCALL(__NR_inotify_rm_watch, sys_inotify_rm_watch)

/* fs/ioctl.c */
#define __NR_ioctl 29
__SC_COMP(__NR_ioctl, sys_ioctl, compat_sys_ioctl)

/* fs/ioprio.c */
#define __NR_ioprio_set 30
__SYSCALL(__NR_ioprio_set, sys_ioprio_set)
#define __NR_ioprio_get 31
__SYSCALL(__NR_ioprio_get, sys_ioprio_get)

/* fs/locks.c */
#define __NR_flock 32
__SYSCALL(__NR_flock, sys_flock)

/* fs/namei.c */
#define __NR_mknodat 33
__SYSCALL(__NR_mknodat, sys_mknodat)
#define __NR_mkdirat 34
__SYSCALL(__NR_mkdirat, sys_mkdirat)
#define __NR_unlinkat 35
__SYSCALL(__NR_unlinkat, sys_unlinkat)
#define __NR_symlinkat 36
__SYSCALL(__NR_symlinkat, sys_symlinkat)
#define __NR_linkat 37
__SYSCALL(__NR_linkat, sys_linkat)
#define __NR_renameat 38
__SYSCALL(__NR_renameat, sys_renameat)

/* fs/namespace.c */
#define __NR_umount2 39
__SYSCALL(__NR_umount2, sys_umount)
#define __NR_mount 40
__SC_COMP(__NR_mount, sys_mount, compat_sys_mount)
#define __NR_pivot_root 41
__SYSCALL(__NR_pivot_root, sys_pivot_root)

/* fs/nfsctl.c */
#define __NR_nfsservctl 42
__SYSCALL(__NR_nfsservctl, sys_ni_syscall)

/* fs/open.c */
#define __NR3264_statfs 43
__SC_COMP_3264(__NR3264_statfs, sys_statfs64, sys_statfs, \
compat_sys_statfs64)
#define __NR3264_fstatfs 44
__SC_COMP_3264(__NR3264_fstatfs, sys_fstatfs64, sys_fstatfs, \
compat_sys_fstatfs64)
#define __NR3264_truncate 45
__SC_COMP_3264(__NR3264_truncate, sys_truncate64, sys_truncate, \
compat_sys_truncate64)
#define __NR3264_ftruncate 46
__SC_COMP_3264(__NR3264_ftruncate, sys_ftruncate64, sys_ftruncate, \
compat_sys_ftruncate64)

#define __NR_fallocate 47
__SC_COMP(__NR_fallocate, sys_fallocate, compat_sys_fallocate)
#define __NR_faccessat 48
__SYSCALL(__NR_faccessat, sys_faccessat)
#define __NR_chdir 49
__SYSCALL(__NR_chdir, sys_chdir)
#define __NR_fchdir 50
__SYSCALL(__NR_fchdir, sys_fchdir)
#define __NR_chroot 51
__SYSCALL(__NR_chroot, sys_chroot)
#define __NR_fchmod 52
__SYSCALL(__NR_fchmod, sys_fchmod)
#define __NR_fchmodat 53
__SYSCALL(__NR_fchmodat, sys_fchmodat)
#define __NR_fchownat 54
__SYSCALL(__NR_fchownat, sys_fchownat)
#define __NR_fchown 55
__SYSCALL(__NR_fchown, sys_fchown)
#define __NR_openat 56
__SC_COMP(__NR_openat, sys_openat, compat_sys_openat)
#define __NR_close 57
__SYSCALL(__NR_close, sys_close)
#define __NR_vhangup 58
__SYSCALL(__NR_vhangup, sys_vhangup)

/* fs/pipe.c */
#define __NR_pipe2 59
__SYSCALL(__NR_pipe2, sys_pipe2)

/* fs/quota.c */
#define __NR_quotactl 60
__SYSCALL(__NR_quotactl, sys_quotactl)

/* fs/readdir.c */
#define __NR_getdents64 61
__SC_COMP(__NR_getdents64, sys_getdents64, compat_sys_getdents64)

/* fs/read_write.c */
#define __NR3264_lseek 62
__SC_3264(__NR3264_lseek, sys_llseek, sys_lseek)
#define __NR_read 63
__SYSCALL(__NR_read, sys_read)
#define __NR_write 64
__SYSCALL(__NR_write, sys_write)
#define __NR_readv 65
__SC_COMP(__NR_readv, sys_readv, compat_sys_readv)
#define __NR_writev 66
__SC_COMP(__NR_writev, sys_writev, compat_sys_writev)
#define __NR_pread64 67
__SC_COMP(__NR_pread64, sys_pread64, compat_sys_pread64)
#define __NR_pwrite64 68
__SC_COMP(__NR_pwrite64, sys_pwrite64, compat_sys_pwrite64)
#define __NR_preadv 69
__SC_COMP(__NR_preadv, sys_preadv, compat_sys_preadv)
#define __NR_pwritev 70
__SC_COMP(__NR_pwritev, sys_pwritev, compat_sys_pwritev)






在汇编代码中;
.section .data
output: .asciz "This is a test string\n"
output_end:
.equ len, output_end-output
.section .text
.globl _start
_start:
movl $64,%eax
movl $1,%ebx
movl $output,%ecx
movl $len,%edx
int $0x80
movl $1,%eax
movl $0,%ebx
int $0x80
运行时没有输出,而
.section .data
output: .asciz "This is a test string\n"
output_end:
.equ len, output_end-output
.section .text
.globl _start
_start:
movl $4,%eax
movl $1,%ebx
movl $output,%ecx
movl $len,%edx
int $0x80
movl $1,%eax
movl $0,%ebx
int $0x80
输出了This is a test string


真的是文件出错了?
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在/usr/include/i386-linux-gnu/asm/unistd_32.h

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