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-rw-r--r--include/sys/syscall.h14
1 files changed, 10 insertions, 4 deletions
diff --git a/include/sys/syscall.h b/include/sys/syscall.h
index aef1f998f..4c8ede843 100644
--- a/include/sys/syscall.h
+++ b/include/sys/syscall.h
@@ -19,13 +19,19 @@
#ifndef _SYSCALL_H
#define _SYSCALL_H 1
-/* This file provides us with the nicely useful _syscall[0-5] macros. */
+/* The _syscall#() macros are for uClibc internal use only.
+ * User application code should use syscall() instead.
+ *
+ * The kernel provided _syscall[0-6] macros from asm/unistd.h are not suitable
+ * for use in uClibc as they lack PIC support etc, so for uClibc we use our own
+ * local _syscall# macros to be certain all such variations are handled
+ * properly.
+ */
+
#include <features.h>
+#include <bits/sysnum.h>
#if defined _LIBC && (defined IS_IN_libc || defined NOT_IN_libc)
# include <bits/syscalls.h>
-#else
-# include <asm/unistd.h>
-# include <bits/sysnum.h>
#endif
#endif