static void
print_unfree_stats(const mtabent *mtabs)
{
/* print some information about where unfreed blocks were allocated */
Unfreed *unf=NULL;
int nlocs=0;
const mtabent *mtp;
mtp= mtabs;
/* first build table of files */
do {
char *myname= mtp->file;
int myline= mtp->line;
int ind;
if ((ind=lookup_loc(myname,myline,unf,nlocs))<0) {
/* extend table of pointers */
if(unf)
unf= (Unfreed *)realloc((void *)unf,
(unsigned)sizeof(Unfreed)*(nlocs+1));
else
unf= (Unfreed *)malloc((unsigned)sizeof(Unfreed));
unf[nlocs].file= mtp->file; /* just a reference, no copying */
unf[nlocs].line= mtp->line;
unf[nlocs].bytes= mtp->size;
unf[nlocs].count= 1;
nlocs++;
}
else {
/* found entry, got index back */
unf[ind].bytes+= mtp->size;
unf[ind].count++;
}
} while ( (mtp= mtp->next) );
/* at this point, unf contains an array of "Unfreed" structures,
nlocs has size */
qsort(unf,(unsigned)nlocs,sizeof(Unfreed),ltbytes);
{
int i;
(void)fprintf(stderr,"\n\n Summary of unfreed blocks by file and line\n");
(void)fprintf(stderr,
" ==========================================================\n");
for (i=0; i<_MYMALLOC_MAX_UNFREE_PRINT && i<nlocs; i++)
fprintf(stderr,"%16s:%4d %10d bytes (%6d block%s)\n",
unf[i].file,unf[i].line,unf[i].bytes,unf[i].count,
(unf[i].count==1)?"":"s");
if(nlocs>_MYMALLOC_MAX_UNFREE_PRINT)
(void)fprintf(stderr,"(more... %d total locations) \n",nlocs);
}
}
void
erts_lookup_function_info(FunctionInfo* fi, BeamInstr* pc, int full_info)
{
BeamInstr** low;
BeamInstr** high;
BeamInstr** mid;
Range* rp;
fi->current = NULL;
fi->needed = 5;
fi->loc = LINE_INVALID_LOCATION;
rp = find_range(range_tables, pc);
#ifdef ERTS_SLAVE_EMU_ENABLED
if (slave_initialised && rp == 0)
rp = find_range(slave_range_tables, pc);
#endif
if (rp == 0) {
return;
}
low = (BeamInstr **) (rp->start + MI_FUNCTIONS);
high = low + rp->start[MI_NUM_FUNCTIONS];
while (low < high) {
mid = low + (high-low) / 2;
if (pc < mid[0]) {
high = mid;
} else if (pc < mid[1]) {
fi->current = mid[0]+2;
if (full_info) {
BeamInstr** fp = (BeamInstr **) (rp->start +
MI_FUNCTIONS);
int idx = mid - fp;
lookup_loc(fi, pc, rp->start, idx);
}
return;
} else {
low = mid + 1;
}
}
}
void
erts_lookup_function_info(FunctionInfo* fi, BeamInstr* pc, int full_info)
{
ErtsCodeInfo** low;
ErtsCodeInfo** high;
ErtsCodeInfo** mid;
Range* rp;
BeamCodeHeader* hdr;
fi->mfa = NULL;
fi->needed = 5;
fi->loc = LINE_INVALID_LOCATION;
rp = find_range(pc);
if (rp == 0) {
return;
}
hdr = (BeamCodeHeader*) rp->start;
low = hdr->functions;
high = low + hdr->num_functions;
while (low < high) {
mid = low + (high-low) / 2;
if (pc < (BeamInstr*)(mid[0])) {
high = mid;
} else if (pc < (BeamInstr*)(mid[1])) {
fi->mfa = &mid[0]->mfa;
if (full_info) {
ErtsCodeInfo** fp = hdr->functions;
int idx = mid - fp;
lookup_loc(fi, pc, hdr, idx);
}
return;
} else {
low = mid + 1;
}
}
}