Import sources from 2011-03-30 iso image

sys/src/libthread/lib.c

@@ -0,0 +1,38 @@
+#include <u.h>
+#include <libc.h>
+#include <thread.h>
+#include "threadimpl.h"
+
+static long totalmalloc;
+
+void*
+_threadmalloc(long size, int z)
+{
+	void *m;
+
+	m = malloc(size);
+	if (m == nil)
+		sysfatal("Malloc of size %ld failed: %r", size);
+	setmalloctag(m, getcallerpc(&size));
+	totalmalloc += size;
+	if (size > 100000000) {
+		fprint(2, "Malloc of size %ld, total %ld\n", size, totalmalloc);
+		abort();
+	}
+	if (z)
+		memset(m, 0, size);
+	return m;
+}
+
+void
+_threadsysfatal(char *fmt, va_list arg)
+{
+	char buf[1024];	/* size doesn't matter; we're about to exit */
+
+	vseprint(buf, buf+sizeof(buf), fmt, arg);
+	if(argv0)
+		fprint(2, "%s: %s\n", argv0, buf);
+	else
+		fprint(2, "%s\n", buf);
+	threadexitsall(buf);
+}