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When tracing, fatal() dumps RP instruction address queue

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This commit is contained in:
Jim
2011-08-14 13:34:07 -04:00
parent 703940e525
commit 479acd4788
1 changed files with 21 additions and 1 deletions
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22
em.c
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@@ -536,6 +536,8 @@ typedef struct {
TRACEUSER is a macro that is true if the current user is being traced
*/
#define MAXRPQ 8
FILE *tracefile; /* trace.log file */
int traceflags; /* each bit is a trace flag */
int savetraceflags;
@@ -544,6 +546,8 @@ typedef struct {
short numtraceprocs; /* # of procedures we're tracing */
unsigned long traceinstcount; /* only trace if instcount > this */
short tracetriggered; /* Ctrl-T toggles tracing */
short tracerpqx; /* rpq index to store next RP */
unsigned int tracerpq[MAXRPQ];/* last 16 locations executed */
#endif
} gv_t;
@@ -1886,6 +1890,15 @@ static void fatal(char *msg) {
}
#ifndef NOTRACE
printf("RP queue:");
i = gvp->tracerpqx;
while(1) {
printf(" %o/%o", gvp->tracerpq[i]>>16, gvp->tracerpq[i]&0xFFFF);
i = (i+1) & (MAXRPQ-1);
if (i == gvp->tracerpqx)
break;
}
printf("\n");
printf("STLB calls: %d misses: %d hitrate: %5.2f%%\n", gvp->mapvacalls, gvp->mapvamisses, (double)(gvp->mapvacalls-gvp->mapvamisses)/gvp->mapvacalls*100.0);
printf("Supercache calls: %d misses: %d hitrate: %5.2f%%\n", gvp->supercalls, gvp->supermisses, (double)(gvp->supercalls-gvp->supermisses)/gvp->supercalls*100.0);
#endif
@@ -4378,8 +4391,10 @@ main (int argc, char **argv) {
/* initialize global variables */
if (sizeof(gv) > 16*1024)
if (sizeof(gv) > 16*1024) {
printf("em: size of global vars = %lu\n", sizeof(gv));
fatal(NULL);
}
gvp = &gv;
gvp->physmem = physmem;
@@ -4400,6 +4415,9 @@ main (int argc, char **argv) {
gvp->numtraceprocs = 0;
gvp->traceinstcount = 0;
gvp->tracetriggered = 1;
gvp->tracerpqx = 0;
for (i=0; i<MAXRPQ; i++)
gvp->tracerpq[i] = 0;
#endif
invalidate_brp();
eap = &gvp->brp[0];
@@ -4921,6 +4939,8 @@ fetch:
(TRACEUSER && ((gvp->traceseg == 0) || (gvp->traceseg == (RPH & 0xFFF))))
)
gvp->traceflags = gvp->savetraceflags;
gvp->tracerpq[gvp->tracerpqx] = RP;
gvp->tracerpqx = (gvp->tracerpqx+1) & (MAXRPQ-1);
#endif
/* hack to activate trace in 32I mode */