[src/trunk]: src/lib/libc/stdlib make this smaller.

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/c4e90330e550
branches:  trunk
changeset: 820597:c4e90330e550
user:      christos <christos%NetBSD.org@localhost>
date:      Thu Jan 12 01:02:09 2017 +0000

description:
make this smaller.

diffstat:

 lib/libc/stdlib/malloc.c |  34 +++++++++++++++++++++-------------
 1 files changed, 21 insertions(+), 13 deletions(-)

diffs (60 lines):

diff -r d4feba1e8340 -r c4e90330e550 lib/libc/stdlib/malloc.c
--- a/lib/libc/stdlib/malloc.c  Thu Jan 12 00:43:55 2017 +0000
+++ b/lib/libc/stdlib/malloc.c  Thu Jan 12 01:02:09 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: malloc.c,v 1.56 2014/09/18 13:58:20 christos Exp $     */
+/*     $NetBSD: malloc.c,v 1.57 2017/01/12 01:02:09 christos Exp $     */
 
 /*
  * ----------------------------------------------------------------------------
@@ -84,21 +84,27 @@
 
 #include <sys/types.h>
 #if defined(__NetBSD__)
-#   define malloc_minsize               16U
-#   define HAS_UTRACE
-#   define UTRACE_LABEL "malloc",
-#include <sys/cdefs.h>
-#include "extern.h"
-#if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: malloc.c,v 1.56 2014/09/18 13:58:20 christos Exp $");
-#endif /* LIBC_SCCS and not lint */
+# define malloc_minsize               16U
+# ifdef _LIBC
+#  define HAS_UTRACE
+#  define UTRACE_LABEL "malloc",
 int utrace(const char *, void *, size_t);
-
-#include <reentrant.h>
+# endif
+# include <sys/cdefs.h>
+# include "extern.h"
+# if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: malloc.c,v 1.57 2017/01/12 01:02:09 christos Exp $");
+# endif /* LIBC_SCCS and not lint */
+# include <reentrant.h>
+# ifdef _REENTRANT
 extern int __isthreaded;
 static mutex_t thread_lock = MUTEX_INITIALIZER;
-#define _MALLOC_LOCK() if (__isthreaded) mutex_lock(&thread_lock);
-#define _MALLOC_UNLOCK()       if (__isthreaded) mutex_unlock(&thread_lock);
+#  define _MALLOC_LOCK()       if (__isthreaded) mutex_lock(&thread_lock);
+#  define _MALLOC_UNLOCK()     if (__isthreaded) mutex_unlock(&thread_lock);
+# else
+#  define _MALLOC_LOCK()       
+#  define _MALLOC_UNLOCK()
+# endif
 #endif /* __NetBSD__ */
 
 #if defined(__sparc__) && defined(sun)
@@ -472,8 +478,10 @@
                continue;
            b[j] = '\0';
            p = b;
+#ifdef _LIBC
        } else if (i == 1 && issetugid() == 0) {
            p = getenv("MALLOC_OPTIONS");
+#endif
        } else if (i == 1) {
            continue;
        } else {