static int bbAdd(Sdb *db, ut64 from, ut64 to, ut64 jump, ut64 fail) {
ut64 block_start = getCrossingBlock (db, "bbs", from, to);
int add = 1;
if (block_start == UT64_MAX) {
// add = 1;
} else if (block_start == from) {
// check if size is the same,
add = 0;
} else {
/*
from = start address of new basic block
to = end address of new basic block
jump = destination basic block
fail = fallback jump of basic block
addr = previous closer basic block start address
addr_end = previous closer basic block start address
*/
// found a possible block
if (from > block_start) {
// from inside
// RESIZE this
sdb_num_set (db, Fbb(block_start), from, 0);
sdb_num_set (db, FbbTo(block_start), from, 0);
sdb_array_set_num (db, FbbTo(block_start), 0, from, 0);
sdb_array_set_num (db, FbbTo(block_start), 1, UT64_MAX, 0);
} else {
// < the current runs into a known block
to = block_start;
jump = block_start;
fail = UT64_MAX;
}
}
if (add) {
sdb_array_add_num (db, "bbs", from, 0);
sdb_num_set (db, Fbb(from), to, 0);
sdb_array_set_num (db, FbbTo(from), 0, jump, 0);
sdb_array_set_num (db, FbbTo(from), 1, fail, 0);
sdb_num_min (db, "min", from, 0);
sdb_num_max (db, "max", to, 0);
}
return 0;
}
static int bbAdd (Sdb *db, ut64 from, ut64 to, ut64 jump, ut64 fail) {
ut64 addr_end, addr = sdb_array_get_closer_num (db, "bbs", from);
int add = 1;
if (addr == UT64_MAX) {
// add = 1;
} else if (addr == from) {
// check if size is the same,
eprintf ("basic block already analyzed\n");
add = 0;
} else {
/*
from = start address of new basic block
to = end address of new basic block
jump = destination basic block
fail = fallback jump of basic block
addr = previous closer basic block start address
addr_end = previous closer basic block start address
*/
addr_end = sdb_num_get (db, Fbb(addr), NULL);
if (addr_end) {
if (from >= addr && from < addr_end) {
eprintf ("OVERLAPS MUST SPLIT\n");
/* reduce current basic block to from */
eprintf ("Shrink basic block 0x%08"PFMT64x" to %d\n", addr, (int)(from-addr));
sdb_num_set (db, Fbb(addr), addr + from-addr, 0);
sdb_num_set (db, FbbTo(addr), from, 0);
//to = addr_end; // ???
}
}
}
if (add) {
sdb_array_add_num (db, "bbs", from, 0);
sdb_num_set (db, Fbb(from), to, 0);
if (jump != UT64_MAX)
sdb_array_set_num (db, FbbTo(from), 0, jump, 0);
if (fail != UT64_MAX)
sdb_array_set_num (db, FbbTo(from), 1, fail, 0);
sdb_num_min (db, "min", from, 0);
sdb_num_max (db, "max", to, 0);
}
return 0;
}
