From 23ac1f4f98accc3bb84e81be264d8408be372028 Mon Sep 17 00:00:00 2001
From: Nicholas Noll <nbnoll@eml.cc>
Date: Sun, 17 May 2020 18:28:05 -0700
Subject: fix: bugs associated to map reallocating

---
 sys/cmd/cc/cc.c | 38 +++++++++++++++++++++++---------------
 1 file changed, 23 insertions(+), 15 deletions(-)

(limited to 'sys/cmd/cc/cc.c')

diff --git a/sys/cmd/cc/cc.c b/sys/cmd/cc/cc.c
index 39ad5f2..3dae0fd 100644
--- a/sys/cmd/cc/cc.c
+++ b/sys/cmd/cc/cc.c
@@ -12,7 +12,7 @@ hash_string(byte* s)
     int32 h;
 
     h = 0; 
-    if (h != 0) {
+    if (s != nil) {
         for (; *s; ++s) {
             h += *s;
             h  = (h << 10);
@@ -58,7 +58,7 @@ static
 int
 morestrtab(StrTab *tab, int n)
 {
-    MAP_GROW(tab, string, int32, n, HASH, mem·sys.alloc, mem·sys.free, nil);
+    MAP_GROW(tab, string, int32, n, HASH, ·calloc, ·free, nil);
 }
 
 static
@@ -106,7 +106,7 @@ openio(byte *path)
 
     // See if we have already opened file;
     // If so, and it hasn't been flagged return it
-    for (it = C.iostk; it != C.io + 1; ++it) {
+    for (it = C.iostk; it != C.io; ++it) {
         if ((uintptr)it->path == (uintptr)path) {
             if (it->kind & IOonce) {
                 return nil;
@@ -119,6 +119,9 @@ openio(byte *path)
         panicf("out of I/O space!");
 
     C.io->f    = io·open(path, "r");
+    if (!C.io->f) {
+        panicf("file %s not found", path);
+    }
     C.io->path = path;
     bufio·initreader(&C.io->buf, asrdr(io·read), C.io->f);
 
@@ -176,19 +179,19 @@ byte *directives[NUM_DIRECTIVES] = { DIRECTIVES };
 struct Compiler C = { 0 }; 
 
 // -----------------------------------------------------------------------
-// flag handlers
+// cli flag handlers
 
 void
 pushinclude(byte *dirs)
 {
     string d, s, *it, *end;
 
-    while (*dirs != 0) {
+    while (*dirs != '\0') {
         d = strchr(dirs, ' ');
         if (d != nil)
             *d = '\0';
 
-        s = d;
+        s = dirs;
         intern(&s);
         for (it = C.inc.dir, end = it + C.inc.len; it != end; ++it) {
             if ((uintptr)s == (uintptr)(*it))
@@ -198,15 +201,13 @@ pushinclude(byte *dirs)
         if (C.inc.len == C.inc.cap) {
             C.inc.cap += 20;
             C.inc.dir = realloc(C.inc.dir, C.inc.cap*sizeof(*C.inc.dir));
-            C.inc.dir[C.inc.len++] = s;
         }
-
+        C.inc.dir[C.inc.len++] = s;
 Nextdir:
         if (d == nil)
             break;
         dirs = d + 1;
     }
-
 }
 
 // -----------------------------------------------------------------------
@@ -233,6 +234,9 @@ init(void)
     C.inc.dir[C.inc.len++] = ".";
 
     C.outfile = nil;
+    C.io      = C.iostk;
+    memset(C.iostk, 0, sizeof(C.iostk));
+
     C.lxr     = (Lexer){ 0 };
 }
 
@@ -241,14 +245,14 @@ compile(byte *path)
 {
     Io    *io;
     Token tok;
-    byte *p, file[400];
+    byte *p, out[400];
 
-    strcpy(file, path);
-    p = utf8·findrrune(file, '/');
+    strcpy(out, path);
+    p = utf8·findrrune(out, '/');
     if (p) 
         *p++ = '\0';
     else
-        p = file; 
+        p = out; 
 
     if (!C.outfile) {
         C.outfile = p;
@@ -263,9 +267,9 @@ compile(byte *path)
         }
     }
 
-    C.lxr.io = openio(file);
+    C.lxr.io = openio(path);
     while (tok = lex(&C.lxr), tok.kind > Aeof) {
-        ;
+        puttok(tok);
     }
     freeio(C.lxr.io);
 
@@ -305,6 +309,10 @@ main(int argc, byte *argv[])
         exit(1);
     }
 
+    // NOTE: This is just for my comfort during debugging.
+    pushinclude("/home/nolln/root/include");
+    pushinclude("/home/nolln/root/include/vendor/libc");
+    
     src = (argc == 0) ? "<stdin>" : argv[0];
     intern(&src);
 
-- 
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