1991/1011/port/devkprof.c (diff list | history)

1991/1009/sys/src/9/port/devkprof.c:9,15 – 1991/1011/sys/src/9/port/devkprof.c:9,16 (short | long | prev | next)
1990/03292
1991/1006		#define LRES 3 /* log of PC resolution */
1990/03292
1991/1006		struct{
1991/1011		struct {
1991/1006		int minpc; int maxpc; int nbuf;
1991/1009/sys/src/9/port/devkprof.c:37,44 – 1991/1011/sys/src/9/port/devkprof.c:38,45
1991/1006		kprof.minpc = KTZERO; kprof.maxpc = (ulong)&etext; kprof.nbuf = (kprof.maxpc-kprof.minpc) >> LRES; kprof.buf = ialloc(kprof.nbuf*sizeof kprof.buf[0], 0); kproftab[0].length = kprof.nbuf*sizeof kprof.buf[0];
1991/1011		kprof.buf = ialloc(conf.nmach * kprof.nbuf*sizeof kprof.buf[0], 0); kproftab[0].length = conf.nmach * kprof.nbuf*sizeof kprof.buf[0];
1990/0330		} void
1991/1009/sys/src/9/port/devkprof.c:113,119 – 1991/1011/sys/src/9/port/devkprof.c:114,120
1990/03292		case Kprofdirqid:
1990/0330		return devdirread(c, a, n, kproftab, Nkproftab, devgen);
1990/03292		case Kprofdataqid:
1991/1006		end = kprof.nbuf*sizeof kprof.buf[0];
1991/1011		end = conf.nmach * kprof.nbuf*sizeof kprof.buf[0];
1991/1006		if(offset >= end){
1990/0330		n = 0;
1990/03292		break;
1991/1009/sys/src/9/port/devkprof.c:135,141 – 1991/1011/sys/src/9/port/devkprof.c:136,142
1991/1006		switch((int)(c->qid.path&~CHDIR)){ case Kprofctlqid: if(strncmp(a, "startclr", 8) == 0){ memset((char *)kprof.buf, 0, kprof.nbuf*sizeof kprof.buf[0]);
1991/1011		memset((char *)kprof.buf, 0, conf.nmach * kprof.nbuf*sizeof kprof.buf[0]);
1991/1006		kprof.time = 1; }else if(strncmp(a, "start", 5) == 0) kprof.time = 1;
1991/1009/sys/src/9/port/devkprof.c:152,157 – 1991/1011/sys/src/9/port/devkprof.c:153,159
1990/03292		kproftimer(ulong pc) {
1991/1009		extern void spldone(void);
1991/1011		ulong *buf;
1991/1009
1991/1006		if(kprof.time == 0) return;
1991/1009/sys/src/9/port/devkprof.c:162,172 – 1991/1011/sys/src/9/port/devkprof.c:164,175
1990/1004		if(pc>=(ulong)spllo && pc<=(ulong)spldone) pc = m->splpc;
1990/0928
1991/1007		kprof.buf[0] += TK2MS(1);
1991/1011		buf = kprof.buf+kprof.nbuf*m->machno; buf[0] += TK2MS(1);
1991/1006		if(kprof.minpc<=pc && pc<kprof.maxpc){ pc -= kprof.minpc;
1990/0330		pc >>= LRES;
1991/1007		kprof.buf[pc] += TK2MS(1);
1991/1011		buf[pc] += TK2MS(1);
1990/0331		} else
1991/1007		kprof.buf[1] += TK2MS(1);
1991/1011		buf[1] += TK2MS(1);
1990/03292		}