#include
#include
#include
#include
#include
MODULE_LICENSE("Dual BSD/GPL");
static int hello_init(void)
{
struct task_struct *task,*p;
struct list_head *pos;
int count=0;
printk(KERN_ALERT"Hello World enter begin:\n");
task=&init_task;
list_for_each(pos,&task->tasks)
{
p=list_entry(pos, struct task_struct, tasks);
count++;
printk(KERN_ALERT"%d--->%s\n",p->pid,p->comm);
}
printk(KERN_ALERT"the number of process is:%d\n",count);
return 0;
}
static void hello_exit(void)
{
printk(KERN_ALERT"hello world exit\n");
}
module_init(hello_init);
module_exit(hello_exit);
/*Makefile文件：
obj-m :=process.o
CURRENT_PATH := $(shell pwd)
LINUX_KERNEL_PATH := /lib/modules/`uname -r`/build
all:
make -C $(LINUX_KERNEL_PATH) M=$(CURRENT_PATH) modules
clean:
rm -rf .*.cmd *.o *.mod.c *.ko .tmp_versions Module.symvers .Makefile.swp
*/
luther@gliethttp:/vobs/tmp$ make
make -C /lib/modules/`uname -r`/build M=/vobs/tmp modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.27-7-generic'
CC [M] /vobs/tmp/process.o
Building modules, stage 2.
MODPOST 1 modules
LD [M] /vobs/tmp/process.ko
make[1]: Leaving directory `/usr/src/linux-headers-2.6.27-7-generic'
luther@gliethttp:/vobs/tmp$ insmod ./process.ko |dmesg
[ 6326.126304] Hello World enter begin:
[ 6326.126328] 1--->init
[ 6326.126333] 2--->kthreadd
[ 6326.126338] 3--->migration/0
[ 6326.126342] 4--->ksoftirqd/0
[ 6326.126347] 5--->watchdog/0
[ 6326.126351] 6--->migration/1
[ 6326.126355] 7--->ksoftirqd/1
[ 6326.126359] 8--->watchdog/1
[ 6326.126364] 9--->events/0
[ 6326.126368] 10--->events/1
[ 6326.126372] 11--->khelper
[ 6326.126377] 51--->kintegrityd/0
[ 6326.126382] 52--->kintegrityd/1
[ 6326.126386] 54--->kblockd/0
[ 6326.126390] 55--->kblockd/1
[ 6326.126395] 57--->kacpid
[ 6326.126399] 58--->kacpi_notify
[ 6326.126403] 161--->cqueue
[ 6326.126408] 165--->kseriod
[ 6326.126412] 210--->pdflush
[ 6326.126416] 211--->pdflush
[ 6326.126420] 212--->kswapd0
[ 6326.126425] 254--->aio/0
[ 6326.126429] 255--->aio/1
[ 6326.126433] 1242--->ksuspend_usbd
[ 6326.126438] 1244--->khubd
[ 6326.126442] 1277--->ata/0
[ 6326.126446] 1283--->ata/1
[ 6326.126450] 1290--->ata_aux
[ 6326.126455] 1302--->khpsbpkt
[ 6326.126459] 2045--->scsi_eh_0
[ 6326.126463] 2046--->scsi_eh_1
[ 6326.126468] 2095--->knodemgrd_0
[ 6326.126472] 2107--->scsi_eh_2
[ 6326.126477] 2108--->scsi_eh_3
[ 6326.126481] 2247--->kjournald
[ 6326.126485] 2422--->udevd
[ 6326.126490] 2613--->kmmcd
[ 6326.126494] 2832--->kpsmoused
[ 6326.126498] 3670--->b43
[ 6326.126502] 4483--->portmap
[ 6326.126507] 4505--->rpc.statd
[ 6326.126511] 4513--->rpciod/0
[ 6326.126516] 4514--->rpciod/1
[ 6326.126520] 4524--->nfsiod
[ 6326.126525] 4532--->rpc.idmapd
[ 6326.126529] 4674--->getty
[ 6326.126534] 4675--->getty
[ 6326.126538] 4681--->getty
[ 6326.126542] 4683--->getty
[ 6326.126547] 4684--->getty
[ 6326.126551] 4859--->acpid
[ 6326.126555] 4893--->kondemand/0
[ 6326.126560] 4895--->kondemand/1
[ 6326.126565] 4976--->syslogd
[ 6326.126569] 5026--->dd
[ 6326.126573] 5028--->klogd
[ 6326.126577] 5051--->dbus-daemon
[ 6326.126582] 5073--->avahi-daemon
[ 6326.126586] 5074--->avahi-daemon
[ 6326.126591] 5104--->sshd
[ 6326.126595] 5151--->cupsd
[ 6326.126599] 5411--->exim4
[ 6326.126604] 5467--->hddtemp
[ 6326.126608] 5563--->lockd
[ 6326.126612] 5564--->nfsd4
[ 6326.126616] 5565--->nfsd
[ 6326.126620] 5566--->nfsd
[ 6326.126625] 5567--->nfsd
[ 6326.126629] 5568--->nfsd
[ 6326.126633] 5569--->nfsd
[ 6326.126637] 5570--->nfsd
[ 6326.126641] 5571--->nfsd
[ 6326.126645] 5572--->nfsd
[ 6326.126650] 5576--->rpc.mountd
[ 6326.126654] 5620--->nmbd
[ 6326.126658] 5622--->smbd
[ 6326.126663] 5634--->smbd
[ 6326.126667] 5648--->winbindd
[ 6326.126671] 5656--->winbindd
[ 6326.126676] 5680--->xinetd
[ 6326.126680] 5694--->hald
[ 6326.126684] 5697--->console-kit-dae
[ 6326.126689] 5698--->hald-runner
[ 6326.126694] 5780--->hald-addon-inpu
[ 6326.126698] 5790--->hald-addon-cpuf
[ 6326.126703] 5791--->hald-addon-acpi
[ 6326.126708] 5794--->hald-addon-stor
[ 6326.126712] 5844--->bluetoothd
[ 6326.126717] 5853--->btaddconn
[ 6326.126721] 5854--->btdelconn
[ 6326.126726] 5869--->krfcommd
[ 6326.126730] 5908--->NetworkManager
[ 6326.126735] 5919--->wpa_supplicant
[ 6326.126740] 5924--->nm-system-setti
[ 6326.126744] 5944--->gdm
[ 6326.126749] 5947--->gdm
[ 6326.126753] 5952--->Xorg
[ 6326.126758] 5968--->system-tools-ba
[ 6326.126763] 6004--->atd
[ 6326.126767] 6032--->cron
[ 6326.126771] 6106--->loop0
[ 6326.126775] 6122--->kjournald
[ 6326.126780] 6131--->getty
[ 6326.126784] 6182--->x-session-manag
[ 6326.126788] 6189--->dhclient
[ 6326.126793] 6283--->scim-launcher
[ 6326.126798] 6311--->scim-helper-man
[ 6326.126803] 6312--->scim-panel-gtk
[ 6326.126808] 6314--->scim-launcher
[ 6326.126812] 6330--->ssh-agent
[ 6326.126817] 6346--->dbus-launch
[ 6326.126822] 6349--->dbus-daemon
[ 6326.126826] 6353--->pulseaudio
[ 6326.126831] 6356--->gconf-helper
[ 6326.126835] 6358--->gconfd-2
[ 6326.126840] 6364--->seahorse-agent
[ 6326.126844] 6368--->gvfsd
[ 6326.126849] 6374--->gnome-keyring-d
[ 6326.126854] 6376--->gnome-settings-
[ 6326.126859] 6379--->gvfs-fuse-daemo
[ 6326.126864] 6384--->gnome-keyring-d
[ 6326.126868] 6386--->metacity
[ 6326.126873] 6409--->gnome-panel
[ 6326.126877] 6411--->nautilus
[ 6326.126882] 6415--->bonobo-activati
[ 6326.126886] 6428--->gnome-screensav
[ 6326.126891] 6432--->gvfs-hal-volume
[ 6326.126896] 6434--->gvfs-gphoto2-vo
[ 6326.126901] 6437--->gvfsd-burn
[ 6326.126905] 6442--->multiload-apple
[ 6326.126910] 6445--->trashapplet
[ 6326.126915] 6446--->sensors-applet
[ 6326.126919] 6449--->gvfsd-trash
[ 6326.126925] 6460--->fast-user-switc
[ 6326.126931] 6463--->mixer_applet2
[ 6326.126936] 6468--->bluetooth-apple
[ 6326.126940] 6469--->nm-applet
[ 6326.126945] 6471--->evolution-alarm
[ 6326.126950] 6472--->python
[ 6326.126954] 6473--->update-notifier
[ 6326.126959] 6482--->gnome-power-man
[ 6326.126964] 6581--->notification-da
[ 6326.126968] 6626--->sh
[ 6326.126973] 6627--->gnome-terminal.
[ 6326.126977] 6631--->firefox
[ 6326.126982] 6643--->run-mozilla.sh
[ 6326.126987] 6647--->firefox-bin
[ 6326.126992] 6648--->gnome-pty-helpe
[ 6326.126996] 7121--->bash
[ 6326.127000] 7150--->vim
[ 6326.127005] 7183--->loop1
[ 6326.127009] 7251--->smplayer
[ 6326.127013] 7282--->mplayer
[ 6326.127017] 7283--->mplayer
[ 6326.127022] 7343--->bash
[ 6326.127026] 7551--->bash
[ 6326.127030] 7567--->vim
[ 6326.127034] 7571--->bash
[ 6326.127039] 7753--->bash
[ 6326.127043] 7978--->insmod
[ 6326.127047] 7981--->udevd
[ 6326.127051] the number of process is:162
[ 6497.680803] hello world exit
[ 6500.975158] Hello World enter begin:
[ 6500.975183] 1--->init
[ 6500.975188] 2--->kthreadd
[ 6500.975193] 3--->migration/0
[ 6500.975197] 4--->ksoftirqd/0
[ 6500.975201] 5--->watchdog/0
[ 6500.975205] 6--->migration/1
[ 6500.975210] 7--->ksoftirqd/1
[ 6500.975214] 8--->watchdog/1
[ 6500.975218] 9--->events/0
[ 6500.975222] 10--->events/1
[ 6500.975226] 11--->khelper
[ 6500.975231] 51--->kintegrityd/0
[ 6500.975235] 52--->kintegrityd/1
[ 6500.975240] 54--->kblockd/0
[ 6500.975244] 55--->kblockd/1
[ 6500.975248] 57--->kacpid
[ 6500.975252] 58--->kacpi_notify
[ 6500.975256] 161--->cqueue
[ 6500.975261] 165--->kseriod
[ 6500.975265] 210--->pdflush
[ 6500.975269] 211--->pdflush
[ 6500.975273] 212--->kswapd0
[ 6500.975277] 254--->aio/0
[ 6500.975281] 255--->aio/1
[ 6500.975285] 1242--->ksuspend_usbd
[ 6500.975290] 1244--->khubd
[ 6500.975294] 1277--->ata/0
[ 6500.975298] 1283--->ata/1
[ 6500.975302] 1290--->ata_aux
[ 6500.975306] 1302--->khpsbpkt
[ 6500.975311] 2045--->scsi_eh_0
[ 6500.975315] 2046--->scsi_eh_1
[ 6500.975319] 2095--->knodemgrd_0
[ 6500.975323] 2107--->scsi_eh_2
[ 6500.975328] 2108--->scsi_eh_3
[ 6500.975332] 2247--->kjournald
[ 6500.975336] 2422--->udevd
[ 6500.975340] 2613--->kmmcd
[ 6500.975344] 2832--->kpsmoused
[ 6500.975349] 3670--->b43
[ 6500.975353] 4483--->portmap
[ 6500.975357] 4505--->rpc.statd
[ 6500.975361] 4513--->rpciod/0
[ 6500.975366] 4514--->rpciod/1
[ 6500.975370] 4524--->nfsiod
[ 6500.975374] 4532--->rpc.idmapd
[ 6500.975378] 4674--->getty
[ 6500.975382] 4675--->getty
[ 6500.975386] 4681--->getty
[ 6500.975390] 4683--->getty
[ 6500.975395] 4684--->getty
[ 6500.975399] 4859--->acpid
[ 6500.975403] 4893--->kondemand/0
[ 6500.975408] 4895--->kondemand/1
[ 6500.975412] 4976--->syslogd
[ 6500.975416] 5026--->dd
[ 6500.975420] 5028--->klogd
[ 6500.975424] 5051--->dbus-daemon
[ 6500.975429] 5073--->avahi-daemon
[ 6500.975433] 5074--->avahi-daemon
[ 6500.975437] 5104--->sshd
[ 6500.975441] 5151--->cupsd
[ 6500.975445] 5411--->exim4
[ 6500.975449] 5467--->hddtemp
[ 6500.975453] 5563--->lockd
[ 6500.975458] 5564--->nfsd4
[ 6500.975462] 5565--->nfsd
[ 6500.975466] 5566--->nfsd
[ 6500.975470] 5567--->nfsd
[ 6500.975474] 5568--->nfsd
[ 6500.975478] 5569--->nfsd
[ 6500.975482] 5570--->nfsd
[ 6500.975486] 5571--->nfsd
[ 6500.975490] 5572--->nfsd
[ 6500.975494] 5576--->rpc.mountd
[ 6500.975498] 5620--->nmbd
[ 6500.975502] 5622--->smbd
[ 6500.975506] 5634--->smbd
[ 6500.975510] 5648--->winbindd
[ 6500.975514] 5656--->winbindd
[ 6500.975519] 5680--->xinetd
[ 6500.975523] 5694--->hald
[ 6500.975527] 5697--->console-kit-dae
[ 6500.975531] 5698--->hald-runner
[ 6500.975535] 5780--->hald-addon-inpu
[ 6500.975540] 5790--->hald-addon-cpuf
[ 6500.975544] 5791--->hald-addon-acpi
[ 6500.975549] 5794--->hald-addon-stor
[ 6500.975554] 5844--->bluetoothd
[ 6500.975558] 5853--->btaddconn
[ 6500.975562] 5854--->btdelconn
[ 6500.975566] 5869--->krfcommd
[ 6500.975571] 5908--->NetworkManager
[ 6500.975575] 5919--->wpa_supplicant
[ 6500.975579] 5924--->nm-system-setti
[ 6500.975584] 5944--->gdm
[ 6500.975588] 5947--->gdm
[ 6500.975592] 5952--->Xorg
[ 6500.975596] 5968--->system-tools-ba
[ 6500.975600] 6004--->atd
[ 6500.975604] 6032--->cron
[ 6500.975608] 6106--->loop0
[ 6500.975612] 6122--->kjournald
[ 6500.975616] 6131--->getty
[ 6500.975620] 6182--->x-session-manag
[ 6500.975625] 6189--->dhclient
[ 6500.975629] 6283--->scim-launcher
[ 6500.975634] 6311--->scim-helper-man
[ 6500.975638] 6312--->scim-panel-gtk
[ 6500.975642] 6314--->scim-launcher
[ 6500.975647] 6330--->ssh-agent
[ 6500.975651] 6346--->dbus-launch
[ 6500.975655] 6349--->dbus-daemon
[ 6500.975660] 6353--->pulseaudio
[ 6500.975664] 6356--->gconf-helper
[ 6500.975668] 6358--->gconfd-2
[ 6500.975673] 6364--->seahorse-agent
[ 6500.975677] 6368--->gvfsd
[ 6500.975681] 6374--->gnome-keyring-d
[ 6500.975687] 6376--->gnome-settings-
[ 6500.975691] 6379--->gvfs-fuse-daemo
[ 6500.975695] 6384--->gnome-keyring-d
[ 6500.975700] 6386--->metacity
[ 6500.975704] 6409--->gnome-panel
[ 6500.975708] 6411--->nautilus
[ 6500.975713] 6415--->bonobo-activati
[ 6500.975717] 6428--->gnome-screensav
[ 6500.975722] 6432--->gvfs-hal-volume
[ 6500.975726] 6434--->gvfs-gphoto2-vo
[ 6500.975731] 6437--->gvfsd-burn
[ 6500.975735] 6442--->multiload-apple
[ 6500.975739] 6445--->trashapplet
[ 6500.975744] 6446--->sensors-applet
[ 6500.975748] 6449--->gvfsd-trash
[ 6500.975752] 6460--->fast-user-switc
[ 6500.975757] 6463--->mixer_applet2
[ 6500.975761] 6468--->bluetooth-apple
[ 6500.975766] 6469--->nm-applet
[ 6500.975770] 6471--->evolution-alarm
[ 6500.975774] 6472--->python
[ 6500.975778] 6473--->update-notifier
[ 6500.975783] 6482--->gnome-power-man
[ 6500.975787] 6581--->notification-da
[ 6500.975791] 6626--->sh
[ 6500.975796] 6627--->gnome-terminal.
[ 6500.975800] 6631--->firefox
[ 6500.975805] 6643--->run-mozilla.sh
[ 6500.975809] 6647--->firefox-bin
[ 6500.975813] 6648--->gnome-pty-helpe
[ 6500.975818] 7121--->bash
[ 6500.975822] 7150--->vim
[ 6500.975826] 7183--->loop1
[ 6500.975830] 7251--->smplayer
[ 6500.975834] 7282--->mplayer
[ 6500.975838] 7283--->mplayer
[ 6500.975842] 7343--->bash
[ 6500.975846] 7551--->bash
[ 6500.975850] 7567--->vim
[ 6500.975854] 7571--->bash
[ 6500.975858] 7753--->bash
[ 6500.975862] 8031--->a.out
[ 6500.975866] 8032--->a.out // 这是打开的2个sleep测试程序,所以可见comm就是进程的名字
[ 6500.975870] 8048--->insmod
[ 6500.975874] 8051--->udevd
[ 6500.975878] the number of process is:164
luther@gliethttp:/vobs/tmp$
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