Kunezingcingo zesistimu eziyi-116; imibhalo yalokhu ingatholakala emakhasini endoda. Ucingo lwesistimu luyisicelo somsebenzi osebenzayo ku-kernel ukunikeza uhlobo oluthile lwesevisi esikhundleni sayo.
Athini amakholi wesistimu ku-Linux?
Ikholi yesistimu ithi ukuxhumana okuyisisekelo phakathi kohlelo lokusebenza ne-Linux kernel. Izingcingo zesistimu nemisebenzi yokusonga umtapo wezincwadi Izingcingo zesistimu ngokuvamile azisetshenziswa ngokuqondile, kodwa kunalokho kusetshenziswa imisebenzi yokugoqa ku-glibc (noma mhlawumbe omunye umtapo wolwazi).
Ngiluthola kanjani uhlu lwamakholi wesistimu ku-Linux?
Ngingaluthola kanjani uhlu lwezingcingo zesistimu ye-Linux nenombolo yama-args abawathatha ngokuzenzakalelayo?
- Zibhale ngokwakho. Ku-arch ngayinye (ziyahlukahluka phakathi kwama-arches ku-linux). …
- Hlaziya amakhasi okwenziwa ngesandla.
- Bhala umbhalo ozama ukushayela i-syscall ngayinye ngo-0, 1, 2… args kuze kube uhlelo lwakheka.
Ingabe i-printf ikholi yesistimu?
Imisebenzi yelabhulali ingase cela izingcingo zesistimu (isb. i-printf igcina ibiza ukubhala ), kodwa lokho kuncike ekutheni umsebenzi welabhulali ngowani (imisebenzi yezibalo ngokuvamile ayidingi ukusebenzisa i-kernel). Izingcingo Zesistimu ku-OS zisetshenziswa ekuxhumaneni ne-OS. Isb. Bhala() ungasetshenziswa okuthile ohlelweni noma ohlelweni.
Iyini i-exec () ikholi yesistimu?
Kukhompyutha, i-exec ingumsebenzi we uhlelo lokusebenza osebenzisa ifayela elisebenzisekayo kumongo wenqubo ekhona kakade, emiselela oqalisekayo odlule. … Kuzitoliki zomyalo we-OS, umyalo owakhelwe ngaphakathi we-exec uthatha indawo yenqubo yegobolondo nohlelo olushiwo.
Ingabe ukufunda ucingo lwesistimu?
Kuzinhlelo zokusebenza ezihambisana ne-POSIX zesimanje, a uhlelo oludinga ukufinyelela idatha kusuka kufayela eligcinwe ohlelweni lwefayela isebenzisa ikholi yesistimu efundiwe. Ifayela likhonjwa ngencazelo yefayela evame ukutholwa ocingweni lwangaphambilini ukuze livulwe.
Kuyini ikholi yesistimu ku-Unix?
Izingcingo zesistimu ze-UNIX Ucingo lwesistimu luyilokho nje igama elishoyo - isicelo sokuthi isistimu yokusebenza yenze okuthile egameni lohlelo lomsebenzisi. Izingcingo zesistimu ziyimisebenzi esetshenziswa ku-kernel ngokwayo. Kumhleli, ucingo lwesistimu luvela njengocingo olujwayelekile lwe-C.
Ingabe i-malloc ikholi yesistimu?
malloc() kuwumkhuba ongasetshenziswa ukwaba inkumbulo ngendlela eguquguqukayo.. Kodwa sicela uqaphele ukuthi I-"malloc" akuyona ikholi yesistimu, inikezwa umtapo wezincwadi we-C. Inkumbulo ingacelwa ngesikhathi sokusebenza nge-malloc call futhi le nkumbulo ibuyiselwa endaweni "yenqwaba" ( yangaphakathi?).
Ingabe imfoloko ucingo lwesistimu?
Kukhompyutha, ikakhulukazi kumongo wesistimu yokusebenza ye-Unix nokufana kwayo nokusebenza, imfoloko i umsebenzi lapho inqubo idala ikhophi yayo. Iwukuxhumana okudingekayo ukuze kuthotshelwe i-POSIX kanye namazinga Okucaciswa Okukodwa kwe-UNIX.
Ingabe ikholi yesistimu iwukuphazamiseka?
Impendulo yombuzo wakho wesibili ithi amakholi wesistimu awaphazamisi ngoba azivuswa ngokulinganayo yi-hardware. Inqubo iyaqhubeka nokusakaza ikhodi yayo kukholi yesistimu, kodwa hhayi ngokuphazamiseka.
Kuyini ukubiza kwesistimu kuchaza ngesibonelo?
Ucingo lwesistimu luthi indlela yokuthi izinhlelo zihlanganyele nesistimu yokusebenza. Uhlelo lwekhompuyutha lushaya ucingo lwesistimu uma lenza isicelo ku-kernel yesistimu yokusebenza. Ucingo lwesistimu luhlinzeka ngamasevisi esistimu yokusebenza ezinhlelweni zomsebenzisi nge-Application Program Interface(API).
Yiziphi izigaba ezinhlanu ezinkulu zezingcingo zesistimu?
Izimpendulo: Izinhlobo zezingcingo Zesistimu Yezingcingo zingahlelwa cishe zibe izigaba ezinhlanu ezinkulu: ukulawulwa kwenqubo, ukukhohlisa kwefayela, ukukhohlisa kwedivayisi, ukugcinwa kolwazi, nokuxhumana.
Yini ebiza izingcingo zesistimu?
Nini uhlelo lomsebenzisi icela ikholi yesistimu, umyalo wekholi wesistimu uyasetshenziswa, okubangela ukuthi iphrosesa iqale ukwenza isibambi sezingcingo sesizinda sokuvikela i-kernel. … Ishintshela ku-kernel stack ehlotshaniswa nentambo yokushaya ucingo. Ishayela umsebenzi owenza ikholi yesistimu eceliwe.