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GP-1573 dwarf - fix check for bad func address

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dev747368
2021-12-02 22:19:33 +00:00
parent b5927ce849
commit 08f64f2b5e
1 changed files with 6 additions and 1 deletions
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7
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf4/next/DWARFFunctionImporter.java
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@@ -22,6 +22,7 @@ import java.util.stream.Collectors;
import ghidra.app.cmd.comments.AppendCommentCmd; import ghidra.app.cmd.comments.AppendCommentCmd;
import ghidra.app.cmd.label.SetLabelPrimaryCmd; import ghidra.app.cmd.label.SetLabelPrimaryCmd;
import ghidra.app.util.bin.format.dwarf4.*; import ghidra.app.util.bin.format.dwarf4.*;
import ghidra.app.util.bin.format.dwarf4.attribs.DWARFNumericAttribute;
import ghidra.app.util.bin.format.dwarf4.encoding.*; import ghidra.app.util.bin.format.dwarf4.encoding.*;
import ghidra.app.util.bin.format.dwarf4.expression.*; import ghidra.app.util.bin.format.dwarf4.expression.*;
import ghidra.program.database.data.DataTypeUtilities; import ghidra.program.database.data.DataTypeUtilities;
@@ -176,7 +177,11 @@ public class DWARFFunctionImporter {
return true; return true;
} }
if (diea.getLowPC(-1) == 0) { // fetch the low_pc attribute directly instead of calling diea.getLowPc() to avoid
// any fixups applied by lower level code
DWARFNumericAttribute attr =
diea.getAttribute(DWARFAttribute.DW_AT_low_pc, DWARFNumericAttribute.class);
if (attr != null && attr.getUnsignedValue() == 0) {
return true; return true;
} }