feat(ELF): dynamic symbols global visibility option

boricj · Aug 17, 2024 · 1486064 · 1486064
1 parent 5c95bb3
commit 1486064
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/main/java/ghidra/app/util/exporter/ElfRelocatableObjectExporter.java b/src/main/java/ghidra/app/util/exporter/ElfRelocatableObjectExporter.java
@@ -76,6 +76,7 @@ public class ElfRelocatableObjectExporter extends Exporter {
  private boolean generateSectionNamesStringTable;
  private boolean generateSectionComment;
  private boolean generateStringAndSymbolTables;
+ private boolean globalDynamicSymbols;
  private SymbolPreference symbolNamePreference;
  private boolean generateRelocationTables;
  private int relocationTableFormat;
@@ -108,6 +109,8 @@ public class ElfRelocatableObjectExporter extends Exporter {
  private static final String OPTION_GEN_STRTAB = "Generate string & symbol tables";
  private static final String OPTION_PREF_SYMNAME = "Symbol name preference";
  private static final String OPTION_GEN_COMMENT = "Generate .comment section";
+ private static final String OPTION_DYN_SYMBOLS_GLOBAL =
+ "Give dynamic symbols global visibility";
  private static final String OPTION_GEN_REL = "Generate relocation tables";
  private static final String OPTION_REL_FMT = "Relocation table format";
 
@@ -299,6 +302,7 @@ Byte.class, autodetectElfData(program)),
  new Option(OPTION_GROUP_ELF_HEADER, OPTION_GEN_SHSTRTAB, true),
  new Option(OPTION_GROUP_ELF_HEADER, OPTION_GEN_COMMENT, true),
  new Option(OPTION_GROUP_SYMBOLS, OPTION_GEN_STRTAB, true),
+ new Option(OPTION_GROUP_SYMBOLS, OPTION_DYN_SYMBOLS_GLOBAL, false),
  new EnumDropDownOption<>(OPTION_GROUP_SYMBOLS, OPTION_PREF_SYMNAME,
  SymbolPreference.class, DEFAULT_SYMBOL_PREFERENCE),
  new Option(OPTION_GROUP_RELOCATIONS, OPTION_GEN_REL, true),
@@ -320,6 +324,7 @@ public void setOptions(List<Option> options) {
  OptionUtils.getOption(OPTION_GEN_SHSTRTAB, options, false);
  generateSectionComment = OptionUtils.getOption(OPTION_GEN_COMMENT, options, false);
  generateStringAndSymbolTables = OptionUtils.getOption(OPTION_GEN_STRTAB, options, false);
+ globalDynamicSymbols = OptionUtils.getOption(OPTION_DYN_SYMBOLS_GLOBAL, options, false);
  symbolNamePreference =
  OptionUtils.getOption(OPTION_PREF_SYMNAME, options, DEFAULT_SYMBOL_PREFERENCE);
  generateRelocationTables = OptionUtils.getOption(OPTION_GEN_REL, options, false);
@@ -416,7 +421,7 @@ else if (obj instanceof Function) {
  }
 
  private byte determineSymbolVisibility(Symbol symbol) {
- if (!symbol.isDynamic()) {
+ if (!symbol.isDynamic() || globalDynamicSymbols) {
  return ElfSymbol.STB_GLOBAL;
  }