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-rw-r--r--sysdeps/unix/sysv/linux/sysdep.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sysdep.h b/sysdeps/unix/sysv/linux/sysdep.h
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+++ b/sysdeps/unix/sysv/linux/sysdep.h
@@ -0,0 +1,25 @@
+/* Copyright (C) 2015-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* Set error number and return -1. A target may choose to return the
+ internal function, __syscall_error, which sets errno and returns -1.
+ We use -1l, instead of -1, so that it can be casted to (void *). */
+#define INLINE_SYSCALL_ERROR_RETURN_VALUE(err) \
+ ({ \
+ __set_errno (err); \
+ -1l; \
+ })