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GP-1778 corrected AddressMapDB bug

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ghidra1
2022-05-04 09:36:28 -04:00
parent de74f99231
commit 17c0b78756
1 changed files with 12 additions and 6 deletions
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Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/map/AddressMapDB.java
+12 -6
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@@ -15,8 +15,6 @@
*/
package ghidra.program.database.map;
import static generic.util.UnsignedDataUtils.*;
import java.io.IOException;
import java.util.*;
@@ -831,16 +829,24 @@ public class AddressMapDB implements AddressMap {
maxBase = maxAddress.getOffset() & BASE_MASK;
}
long numBases = (maxBase >>> 32) - (minBase >>> 32);
long minSegment = minBase >>> 32;
long maxSegment = maxBase >>> 32;
long numBases;
if (minSegment <= maxSegment) {
numBases = maxSegment - minSegment + 1;
}
else {
numBases = maxSegment + (0x100000000L - minSegment) + 1;
}
if (numBases > 2) {
throw new UnsupportedOperationException("Can't create address bases for a range that" +
"extends across more than two upper 32 bit segments!");
}
for (long base = minBase; unsignedLessThanOrEqual(base, maxBase); base +=
(MAX_OFFSET + 1)) {
getBaseAddressIndex(minAddress.getNewAddress(base), false, INDEX_CREATE);
getBaseAddressIndex(minAddress.getNewAddress(minBase), false, INDEX_CREATE);
if (minBase != maxBase) {
getBaseAddressIndex(minAddress.getNewAddress(maxBase), false, INDEX_CREATE);
}
}