private void markStartOfTry(Program program, AddressRange callSite, Address lpAddr) {
		Address csMinAddr = callSite.getMinAddress();
		Address csMaxAddr = callSite.getMaxAddress();
		String startTryComment = "try { // try from " + csMinAddr + " to " + csMaxAddr +
			" has its CatchHandler @ " + lpAddr;
		String existingComment = program.getListing().getComment(CommentType.PRE, csMinAddr);
		if (existingComment == null || !existingComment.contains(startTryComment)) {
			String mergedComment = StringUtilities.mergeStrings(existingComment, startTryComment);
			SetCommentCmd setCommentCmd =
				new SetCommentCmd(csMinAddr, CommentType.PRE, mergedComment);
			setCommentCmd.applyTo(program);
		}
	}
Creates an analyzer for marking up the GCC exception handling information.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/exceptionhandlers/gcc/GccExceptionAnalyzer.java