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#define FPinit() fpinit() /* remove this if math lib is linked */
void FPrestore(void*);
void FPsave(void*);
Timer* addclock0link(void (*)(void), int);
Cname* addelem(Cname*, char*);
void addprog(Proc*);
void addrootfile(char*, uchar*, ulong);
Block* adjustblock(Block*, int);
Block* allocb(int);
int anyhigher(void);
int anyready(void);
void _assert(char*);
Block* bl2mem(uchar*, Block*, int);
int blocklen(Block*);
int breakhit(Ureg *ur, Proc*);
void callwithureg(void(*)(Ureg*));
char* channame(Chan*);
int canlock(Lock*);
int canqlock(QLock*);
void cclose(Chan*);
int canrlock(RWlock*);
void chandevinit(void);
void chandevreset(void);
void chandevshutdown(void);
Dir* chandirstat(Chan*);
void chanfree(Chan*);
void chanrec(Mnt*);
void checkalarms(void);
void checkb(Block*, char*);
void cinit(void);
Chan* cclone(Chan*);
void cclose(Chan*);
void closeegrp(Egrp*);
void closefgrp(Fgrp*);
void closemount(Mount*);
void closepgrp(Pgrp*);
void closesigs(Skeyset*);
void cmderror(Cmdbuf*, char*);
int cmount(Chan*, Chan*, int, char*);
void cnameclose(Cname*);
Block* concatblock(Block*);
void confinit(void);
void copen(Chan*);
Block* copyblock(Block*, int);
int cread(Chan*, uchar*, int, vlong);
Chan* cunique(Chan*);
Chan* createdir(Chan*, Mhead*);
void cunmount(Chan*, Chan*);
void cupdate(Chan*, uchar*, int, vlong);
void cursorenable(void);
void cursordisable(void);
int cursoron(int);
void cursoroff(int);
void cwrite(Chan*, uchar*, int, vlong);
void debugkey(Rune, char *, void(*)(), int);
int decref(Ref*);
Chan* devattach(int, char*);
Block* devbread(Chan*, long, ulong);
long devbwrite(Chan*, Block*, ulong);
Chan* devclone(Chan*);
void devcreate(Chan*, char*, int, ulong);
void devdir(Chan*, Qid, char*, vlong, char*, long, Dir*);
long devdirread(Chan*, char*, long, Dirtab*, int, Devgen*);
Devgen devgen;
void devinit(void);
int devno(int, int);
void devpower(int);
Dev* devbyname(char*);
Chan* devopen(Chan*, int, Dirtab*, int, Devgen*);
void devpermcheck(char*, ulong, int);
void devremove(Chan*);
void devreset(void);
void devshutdown(void);
int devstat(Chan*, uchar*, int, Dirtab*, int, Devgen*);
Walkqid* devwalk(Chan*, Chan*, char**, int, Dirtab*, int, Devgen*);
int devwstat(Chan*, uchar*, int);
void disinit(void*);
void disfault(void*, char*);
int domount(Chan**, Mhead**);
void drawactive(int);
void drawcmap(void);
void dumpstack(void);
Fgrp* dupfgrp(Fgrp*);
void egrpcpy(Egrp*, Egrp*);
int emptystr(char*);
int eqchan(Chan*, Chan*, int);
int eqqid(Qid, Qid);
void error(char*);
void errorf(char*, ...);
#pragma varargck argpos errorf 1
void errstr(char*, int);
void excinit(void);
void exhausted(char*);
void exit(int);
void reboot(void);
void halt(void);
int export(int, char*, int);
uvlong fastticks(uvlong*);
uvlong fastticks2ns(uvlong);
void fdclose(Fgrp*, int);
Chan* fdtochan(Fgrp*, int, int, int, int);
int findmount(Chan**, Mhead**, int, int, Qid);
void free(void*);
void freeb(Block*);
void freeblist(Block*);
void freeskey(Signerkey*);
void getcolor(ulong, ulong*, ulong*, ulong*);
ulong getmalloctag(void*);
ulong getrealloctag(void*);
void gotolabel(Label*);
void hnputl(void*, ulong);
void hnputs(void*, ushort);
Block* iallocb(int);
void iallocsummary(void);
void ilock(Lock*);
int incref(Ref*);
int iprint(char*, ...);
#pragma varargck argpos iprint 1
void isdir(Chan*);
int iseve(void);
int islo(void);
void iunlock(Lock*);
void ixsummary(void);
void kbdclock(void);
int kbdcr2nl(Queue*, int);
int kbdputc(Queue*, int);
void kbdrepeat(int);
void kproc(char*, void(*)(void*), void*, int);
int kfgrpclose(Fgrp*, int);
void kprocchild(Proc*, void (*)(void*), void*);
int kprint(char*, ...);
void (*kproftick)(ulong);
void ksetenv(char*, char*, int);
void kstrcpy(char*, char*, int);
void kstrdup(char**, char*);
long latin1(Rune*, int);
void lock(Lock*);
void logopen(Log*);
void logclose(Log*);
char* logctl(Log*, int, char**, Logflag*);
void logn(Log*, int, void*, int);
long logread(Log*, void*, ulong, long);
void logb(Log*, int, char*, ...);
#define pragma varargck argpos logb 3
Cmdtab* lookupcmd(Cmdbuf*, Cmdtab*, int);
void machinit(void);
extern void machbreakinit(void);
extern Instr machinstr(ulong addr);
extern void machbreakset(ulong addr);
extern void machbreakclear(ulong addr, Instr i);
extern ulong machnextaddr(Ureg *ur);
void* malloc(ulong);
void* mallocz(ulong, int);
Block* mem2bl(uchar*, int);
int memusehigh(void);
void microdelay(int);
uvlong mk64fract(uvlong, uvlong);
void mkqid(Qid*, vlong, ulong, int);
void modinit(void);
Chan* mntauth(Chan*, char*);
long mntversion(Chan*, char*, int, int);
void mountfree(Mount*);
void mousetrack(int, int, int, int);
uvlong ms2fastticks(ulong);
ulong msize(void*);
void mul64fract(uvlong*, uvlong, uvlong);
void muxclose(Mnt*);
Chan* namec(char*, int, int, ulong);
Chan* newchan(void);
Egrp* newegrp(void);
Fgrp* newfgrp(Fgrp*);
Mount* newmount(Mhead*, Chan*, int, char*);
Pgrp* newpgrp(void);
Proc* newproc(void);
char* nextelem(char*, char*);
void nexterror(void);
Cname* newcname(char*);
int notify(Ureg*);
void notkilled(void);
int nrand(int);
uvlong ns2fastticks(uvlong);
int okaddr(ulong, ulong, int);
int openmode(ulong);
Block* packblock(Block*);
Block* padblock(Block*, int);
void panic(char*, ...);
Cmdbuf* parsecmd(char*, int);
void pexit(char*, int);
void pgrpcpy(Pgrp*, Pgrp*);
#define poperror() up->nerrlab--
int poolread(char*, int, ulong);
void poolsize(Pool *, int, int);
int postnote(Proc *, int, char *, int);
int pprint(char*, ...);
int preemption(int);
void printinit(void);
void procctl(Proc*);
void procdump(void);
void procinit(void);
Proc* proctab(int);
void (*proctrace)(Proc*, int, vlong);
int progfdprint(Chan*, int, int, char*, int);
int pullblock(Block**, int);
Block* pullupblock(Block*, int);
Block* pullupqueue(Queue*, int);
void putmhead(Mhead*);
void putstrn(char*, int);
void qaddlist(Queue*, Block*);
Block* qbread(Queue*, int);
long qbwrite(Queue*, Block*);
Queue* qbypass(void (*)(void*, Block*), void*);
int qcanread(Queue*);
void qclose(Queue*);
int qconsume(Queue*, void*, int);
Block* qcopy(Queue*, int, ulong);
int qdiscard(Queue*, int);
void qflush(Queue*);
void qfree(Queue*);
int qfull(Queue*);
Block* qget(Queue*);
void qhangup(Queue*, char*);
int qisclosed(Queue*);
int qiwrite(Queue*, void*, int);
int qlen(Queue*);
void qlock(QLock*);
void qnoblock(Queue*, int);
Queue* qopen(int, int, void (*)(void*), void*);
int qpass(Queue*, Block*);
int qpassnolim(Queue*, Block*);
int qproduce(Queue*, void*, int);
void qputback(Queue*, Block*);
long qread(Queue*, void*, int);
Block* qremove(Queue*);
void qreopen(Queue*);
void qsetlimit(Queue*, int);
void qunlock(QLock*);
int qwindow(Queue*);
int qwrite(Queue*, void*, int);
void randominit(void);
ulong randomread(void*, ulong);
void* realloc(void*, ulong);
int readnum(ulong, char*, ulong, ulong, int);
int readnum_vlong(ulong, char*, ulong, vlong, int);
int readstr(ulong, char*, ulong, char*);
void ready(Proc*);
void renameproguser(char*, char*);
void renameuser(char*, char*);
void resrcwait(char*);
int return0(void*);
void rlock(RWlock*);
void runlock(RWlock*);
Proc* runproc(void);
void sched(void);
void schedinit(void);
long seconds(void);
void (*serwrite)(char*, int);
int setcolor(ulong, ulong, ulong, ulong);
int setlabel(Label*);
void setmalloctag(void*, ulong);
int setpri(int);
void setrealloctag(void*, ulong);
char* skipslash(char*);
void sleep(Rendez*, int(*)(void*), void*);
void* smalloc(ulong);
int splhi(void);
int spllo(void);
void splx(int);
void splxpc(int);
void swiproc(Proc*, int);
ulong _tas(ulong*);
void timeradd(Timer*);
void timerdel(Timer*);
void timersinit(void);
void timerintr(Ureg*, uvlong);
void timerset(uvlong);
ulong tk2ms(ulong);
#define TK2MS(x) ((x)*(1000/HZ))
uvlong tod2fastticks(vlong);
vlong todget(vlong*);
void todfix(void);
void todsetfreq(vlong);
void todinit(void);
void todset(vlong, vlong, int);
int tready(void*);
Block* trimblock(Block*, int, int);
void tsleep(Rendez*, int (*)(void*), void*, int);
int uartgetc(void);
void uartputc(int);
void uartputs(char*, int);
long unionread(Chan*, void*, long);
void unlock(Lock*);
void userinit(void);
ulong userpc(void);
void validname(char*, int);
void validstat(uchar*, int);
void validwstatname(char*);
int wakeup(Rendez*);
int walk(Chan**, char**, int, int, int*);
void werrstr(char*, ...);
void wlock(RWlock*);
void wunlock(RWlock*);
void* xalloc(ulong);
void* xallocz(ulong, int);
void xfree(void*);
void xhole(ulong, ulong);
void xinit(void);
int xmerge(void*, void*);
void* xspanalloc(ulong, int, ulong);
void xsummary(void);
void validaddr(void*, ulong, int);
void* vmemchr(void*, int, int);
void hnputv(void*, vlong);
void hnputl(void*, ulong);
void hnputs(void*, ushort);
vlong nhgetv(void*);
ulong nhgetl(void*);
ushort nhgets(void*);
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