From 5c5d036086eaecfed1d4b2f0eecfbe2b88466efd Mon Sep 17 00:00:00 2001
From: mrb0nk500 <b0nk@b0nk.xyz>
Date: Wed, 26 May 2021 16:41:20 -0400
Subject: Added the abillity to have more than one active state.

I also figured out how to get libtcc working properly.
---
 libtcc-test.c | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 73 insertions(+), 4 deletions(-)

diff --git a/libtcc-test.c b/libtcc-test.c
index eae8e97..fddd143 100644
--- a/libtcc-test.c
+++ b/libtcc-test.c
@@ -1,6 +1,17 @@
 #include <libtcc.h>
 #include <stdint.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+typedef struct tcc_state tcc_state;
+
+struct tcc_state {
+	TCCState *s;
+	tcc_state *prev;
+	tcc_state *next;
+};
 
 const char *files[] = {
 	"test.c",
@@ -8,22 +19,80 @@ const char *files[] = {
 	NULL
 };
 
+tcc_state *states = NULL;
+tcc_state *last_state = NULL;
+
+int is_ready = 0;
+
+void print_sym(void *ctx, const char *name, const void *val) {
+	printf("symbol: %s, address: %p\n", name, val);
+	is_ready = 1;
+}
+
+tcc_state *make_state(TCCState *s) {
+	tcc_state *new_state = malloc(sizeof(tcc_state));
+	memset(new_state, 0, sizeof(tcc_state));
+	(last_state) ? (last_state->next = new_state) : (states = new_state);
+
+	new_state->s = s;
+	new_state->prev = (last_state) ? last_state : NULL;
+	new_state->next = NULL;
+
+	last_state = new_state;
+
+	return new_state;
+}
+
+void free_states(tcc_state *st) {
+	tcc_state *state;
+	TCCState *s;
+
+	if (st != NULL) {
+		state = st;
+		s = st->s;
+		st = st->next;
+		memset(state, 0, sizeof(tcc_state));
+		tcc_delete(s);
+		free(state);
+		state = NULL;
+		free_states(st);
+	}
+}
+
+void cleanup() {
+	if (states) {
+		free_states(states);
+	}
+}
+
 int main(int argc, char **argv) {
-	TCCState *s = tcc_new();
 	int (*start)(void);
 
-	tcc_set_output_type(s, TCC_OUTPUT_MEMORY);
+	tcc_state *st = make_state(tcc_new());
+	tcc_set_output_type(st->s, TCC_OUTPUT_MEMORY);
 
 	for (int i = 0; files[i]; i++) {
-		if (tcc_add_file(s, files[i])) {
+		/*printf("files[%i]: %s\n", i, files[i]);*/
+		if (tcc_add_file(st->s, files[i]) < 0) {
 			printf("oof, press f, failed to compile %s.\n", files[i]);
+			cleanup();
 			return 1;
 		}
 	}
 
-	start = tcc_get_symbol(s, "start");
+	tcc_relocate(st->s, TCC_RELOCATE_AUTO);
+
+	/*while (!is_ready) {
+		tcc_list_symbols(st->s, NULL, &print_sym);
+	}
+	is_ready = 0;*/
+
+	start = tcc_get_symbol(st->s, "start");
+	/*printf("start: %p\n", start);*/
 
 	int ret = start();
 
+	cleanup();
+
 	return 0;
 }
-- 
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