一个弱智的问题，Ｌｉｎｕｘ内核有没有ｍａｉｎ（）函数？？

alessandro

不知道内核是否也也一般的ｃ程序一样有ｍａｉｎ函数？如果有的话在哪点？

fangshun

没有main剩下的就只有函数了！

xdw_jack

有很多的main函数，一下是linux-2.4.20中的：

Defined as a function in:
==========================
fs/umsdos/mangle.c, line 483
fs/udf/crc.c, line 110
fs/udf/crc.c, line 139
net/khttpd/make_times_h.c, line 64
drivers/net/hamradio/soundmodem/gentbl.c, line 635
drivers/char/conmakehash.c, line 79
drivers/char/ip2/ip2mkdev.c, line 16
drivers/char/ip2/ip2stat.c, line 41
drivers/char/ip2/ip2trace.c, line 44
drivers/scsi/aic7xxx/aicasm/aicasm.c, line 114
drivers/sound/bin2hex.c, line 5
drivers/sound/hex2hex.c, line 68
drivers/pci/gen-devlist.c, line 30
drivers/video/sis/init.c, line 4406
drivers/zorro/gen-devlist.c, line 29
drivers/atm/fore200e_mkfirm.c, line 35
arch/x86_64/tools/offset.c, line 20
arch/x86_64/boot/tools/build.c, line 72
arch/ppc64/kernel/mk_defs.c, line 45
arch/ppc64/kernel/checks.c, line 35
arch/ppc64/boot/addSystemMap.c, line 46
arch/ppc64/boot/addRamDisk.c, line 34
arch/ppc64/boot/mknote.c, line 17
arch/ppc64/boot/addnote.c, line 67
arch/i386/boot/tools/build.c, line 72
arch/alpha/boot/tools/objstrip.c, line 51
arch/alpha/kernel/check_asm.c, line 6
arch/sparc/boot/piggyback.c, line 70
arch/sparc/boot/btfixupprep.c, line 77
arch/mips/galileo-boards/ev64120/compressed/burner.c, line 26
arch/mips/boot/elf2ecoff.c, line 265
arch/mips/boot/addinitrd.c, line 39
arch/ppc/kernel/checks.c, line 26
arch/ppc/kernel/mk_defs.c, line 35
arch/ppc/kernel/find_name.c, line 13
arch/ppc/boot/utils/mktree.c, line 38
arch/ppc/boot/utils/addnote.c, line 80
arch/ppc/boot/utils/hack-coff.c, line 33
arch/ppc/boot/utils/mknote.c, line 20
arch/ppc/boot/utils/mkprep.c, line 88
arch/ppc/boot/common/dummy.c, line 4
arch/m68k/kernel/m68k_defs.c, line 22
arch/m68k/tools/amiga/dmesg.c, line 41
arch/sparc64/boot/piggyback.c, line 41
arch/ia64/tools/print_offsets.c, line 184
arch/s390/kernel/asm-offsets.c, line 17
arch/cris/boot/tools/build.c, line 107
arch/cris/kernel/hexify.c, line 4
arch/s390x/kernel/asm-offsets.c, line 17
scripts/tkparse.c, line 821
scripts/split-include.c, line 44
scripts/mkdep.c, line 576
scripts/lxdialog/lxdialog.c, line 57
scripts/docproc.c, line 12

Defined as a function prototype in:
====================================
drivers/char/rio/proto.h, line 163
drivers/scsi/aic7xxx/aicasm/aicasm.c, line 111
arch/arm/boot/compressed/misc.c, line 307


Referenced (in 78 files total) in:
======================================
fs/umsdos/mangle.c, line 483
fs/udf/crc.c, 2 times
net/khttpd/make_times_h.c, line 64
drivers/net/wan/farsync.c, line 1700
drivers/net/hamradio/soundmodem/gentbl.c, line 635
drivers/net/skfp/smtparse.c, line 441
drivers/char/conmakehash.c, line 79
drivers/char/ip2/ip2mkdev.c, line 16
drivers/char/ip2/ip2stat.c, line 41
drivers/char/ip2/ip2trace.c, line 44
drivers/char/rio/proto.h, line 163
drivers/char/agp/agpgart_be.c, line 5048
drivers/scsi/sun3_NCR5380.c, 5 times
drivers/scsi/mac_NCR5380.c, 5 times
drivers/scsi/atari_NCR5380.c, 5 times
drivers/scsi/NCR5380.c, 4 times
drivers/scsi/AM53C974.c, 2 times
drivers/scsi/aic7xxx/aicasm/aicasm.c, 2 times
drivers/sound/bin2hex.c, line 5
drivers/sound/hex2hex.c, line 68
drivers/pci/gen-devlist.c, line 30
drivers/isdn/hisax/rawhdlc.c, line 520
drivers/sbus/char/uctrl.c, line 75
drivers/video/sis/init.c, line 4406
drivers/zorro/gen-devlist.c, line 29
drivers/usb/hid-core.c, line 479
drivers/usb/storage/usb.c, line 1079
drivers/atm/fore200e_mkfirm.c, line 35
drivers/i2c/i2c-core.c, line 1411
drivers/media/video/msp3400.c, 19 times
drivers/mtd/devices/blkmtd.c, line 335
drivers/mtd/maps/cstm_mips_ixx.c, 2 times
arch/x86_64/tools/offset.c, line 20
arch/x86_64/boot/tools/build.c, line 72
arch/ppc64/kernel/mk_defs.c, line 45
arch/ppc64/kernel/rtas-proc.c, line 505
arch/ppc64/kernel/checks.c, line 35
arch/ppc64/boot/addSystemMap.c, line 46
arch/ppc64/boot/addRamDisk.c, line 34
arch/ppc64/boot/mknote.c, line 17
arch/ppc64/boot/addnote.c, line 67
arch/i386/boot/tools/build.c, line 72
arch/alpha/boot/tools/mkbb.c, line 84
arch/alpha/boot/tools/objstrip.c, line 51
arch/alpha/kernel/check_asm.c, line 6
arch/sparc/boot/piggyback.c, line 70
arch/sparc/boot/btfixupprep.c, line 101
arch/mips/galileo-boards/ev64120/compressed/doit.c, line 43
arch/mips/galileo-boards/ev64120/compressed/burner.c, line 26
arch/mips/boot/elf2ecoff.c, line 265
arch/mips/boot/addinitrd.c, line 39
arch/ppc/platforms/proc_rtas.c, line 496
arch/ppc/platforms/pmac_pic.c, line 480
arch/ppc/kernel/checks.c, line 26
arch/ppc/kernel/mk_defs.c, line 35
arch/ppc/kernel/find_name.c, line 13
arch/ppc/boot/utils/mktree.c, line 38
arch/ppc/boot/utils/addnote.c, line 80
arch/ppc/boot/utils/hack-coff.c, line 33
arch/ppc/boot/utils/mknote.c, line 20
arch/ppc/boot/utils/mkprep.c, line 88
arch/ppc/boot/common/dummy.c, line 4
arch/m68k/kernel/m68k_defs.c, line 22
arch/m68k/tools/amiga/dmesg.c, line 41
arch/sparc64/kernel/pci_sabre.c, line 1619
arch/sparc64/boot/piggyback.c, line 41
arch/arm/boot/compressed/misc.c, line 307
arch/ia64/tools/print_offsets.c, line 184
arch/s390/kernel/asm-offsets.c, line 17
arch/cris/boot/tools/build.c, line 107
arch/cris/kernel/hexify.c, line 4
arch/s390x/kernel/asm-offsets.c, line 17
scripts/tkparse.c, line 821
scripts/split-include.c, line 44
scripts/mkdep.c, line 576
scripts/lxdialog/lxdialog.c, line 57
scripts/docproc.c, line 12
Documentation/networking/ifenslave.c, line 125

alessandro

怎么会有这么多ｍａｉｎ函数呢？

hxl666888

那里可以得到这些函数的源代码呢?有没有函数大全?

xdw_jack

linux内核源代码里呀
到www.kernel.org里面下载

owl

内核源码中的main函数和普通用户程序中的不同。普通程序的main函数的作用是告诉操作系统自己的执行入口。而操作系统本身就用不着这样费事，直接跳转就是了。