--- a/objgrep/frontend.c	Fri Jul 04 08:46:32 2014 +0000
+++ b/objgrep/frontend.c	Fri Jul 04 16:37:51 2014 +0000
@@ -30,6 +30,7 @@
 struct symbol *flash_symbols, *ram_symbols;
 unsigned num_flash_symbols, num_ram_symbols;
 char *binfilename;
+int verbose;
 
 enter_symbol(name, valstr, symsrc)
 	char *name, *valstr;
@@ -68,6 +69,8 @@
 			"This module's symbols deduced from section relocs:";
 
 	sprintf(cmdline, "objgrep -rs %s %s %s", objfile, secname, binfilename);
+	if (verbose)
+		printf("Running %s\n", cmdline);
 	f = popen(cmdline, "r");
 	if (!f) {
 		perror("popen");
@@ -192,7 +195,7 @@
 
 	p = buf;
 	for (sym = head; sym; sym = sym->next)
-		*p = sym;
+		*p++ = sym;
 }
 
 unsigned
@@ -251,20 +254,32 @@
 	struct symbol **input, **output;
 	unsigned final_count;
 
+	if (verbose)
+		printf("Total symbols to process: %u\n", total);
 	input = malloc(sizeof(void *) * total);
 	if (!input) {
 		perror("malloc");
 		exit(1);
 	}
+	if (verbose)
+		printf("Turning linked list into linear array\n");
 	fill_input_array(head, input);
+	if (verbose)
+		printf("Sorting by name\n");
 	qsort(input, total, sizeof(void *), sort_by_name);
+	if (verbose)
+		printf("Allocating output array\n");
 	output = malloc(sizeof(void *) * total);
 	if (!output) {
 		perror("malloc");
 		exit(1);
 	}
+	if (verbose)
+		printf("Processing duplicates\n");
 	final_count = dedup_symbols(input, output, total);
 	free(input);
+	if (verbose)
+		printf("%u symbols left, sorting by value\n", final_count);
 	qsort(output, final_count, sizeof(void *), sort_by_value);
 	emit_final_symbols(output, final_count);
 	free(output);
@@ -274,12 +289,25 @@
 main(argc, argv)
 	char **argv;
 {
-	if (argc != 3) {
-		fprintf(stderr, "usage: %s listfile binfile\n", argv[0]);
-		exit(1);
-	}
-	binfilename = argv[2];
-	process_list_file(argv[1]);
+	int c;
+	extern int optind;
+
+	while ((c = getopt(argc, argv, "v")) != EOF)
+		switch (c) {
+		case 'v':
+			verbose++;
+			continue;
+		default:
+		usage:
+			fprintf(stderr, "usage: %s [-v] listfile binfile\n",
+				argv[0]);
+			exit(1);
+		}
+	if (argc - optind != 2)
+		goto usage;
+
+	binfilename = argv[optind+1];
+	process_list_file(argv[optind]);
 	if (flash_symbols) {
 		printf("Flash symbols:\n\n");
 		sort_and_emit_symbols(flash_symbols, num_flash_symbols);