private void markAsError(Address relocationAddress, String symbolName, String msg,
			MessageLog log) {
		symbolName = StringUtils.isEmpty(symbolName) ? "<noname>" : symbolName;
		log.appendMsg("MinGW Relocation Error: at " + relocationAddress + ", Symbol = " +
			symbolName + ": " + msg);
		BookmarkManager bookmarkManager = program.getBookmarkManager();
		bookmarkManager.setBookmark(relocationAddress, BookmarkType.ERROR, "MinGW Relocation",
			"MinGW Relocation Error: Symbol = " + symbolName + ": " + msg);
	}
External Import Address List (IAT) Symbol Record
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/analysis/MingwRelocationAnalyzer.java