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-rw-r--r--REORG.TODO/sysdeps/unix/sysv/linux/sysdep.h68
1 files changed, 68 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/sysdep.h b/REORG.TODO/sysdeps/unix/sysv/linux/sysdep.h
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index 0000000000..1c24766e48
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+++ b/REORG.TODO/sysdeps/unix/sysv/linux/sysdep.h
@@ -0,0 +1,68 @@
+/* Copyright (C) 2015-2017 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/>.  */
+
+#include <bits/wordsize.h>
+#include <kernel-features.h>
+
+/* 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;					\
+  })
+
+/* Provide a dummy argument that can be used to force register
+   alignment for register pairs if required by the syscall ABI.  */
+#ifdef __ASSUME_ALIGNED_REGISTER_PAIRS
+#define __ALIGNMENT_ARG 0,
+#define __ALIGNMENT_COUNT(a,b) b
+#else
+#define __ALIGNMENT_ARG
+#define __ALIGNMENT_COUNT(a,b) a
+#endif
+
+/* Provide a common macro to pass 64-bit value on syscalls.  */
+#if __WORDSIZE == 64 || defined __ASSUME_WORDSIZE64_ILP32
+# define SYSCALL_LL(val)   (val)
+# define SYSCALL_LL64(val) (val)
+#else
+#define SYSCALL_LL(val)   \
+  __LONG_LONG_PAIR ((val) >> 31, (val))
+#define SYSCALL_LL64(val) \
+  __LONG_LONG_PAIR ((long) ((val) >> 32), (long) ((val) & 0xffffffff))
+#endif
+
+/* Provide a common macro to pass 64-bit value on pread and pwrite
+   syscalls.  */
+#ifdef __ASSUME_PRW_DUMMY_ARG
+# define SYSCALL_LL_PRW(val)   0, SYSCALL_LL (val)
+# define SYSCALL_LL64_PRW(val) 0, SYSCALL_LL64 (val)
+#else
+# define SYSCALL_LL_PRW(val)   __ALIGNMENT_ARG SYSCALL_LL (val)
+# define SYSCALL_LL64_PRW(val) __ALIGNMENT_ARG SYSCALL_LL64 (val)
+#endif
+
+/* Provide a macro to pass the off{64}_t argument on p{readv,writev}{64}.  */
+#define LO_HI_LONG(val) \
+ (long) (val), \
+ (long) (((uint64_t) (val)) >> 32)
+
+/* Exports the __send symbol on send.c linux implementation (some ABI have
+   it missing due the usage of a old generic version without it).  */
+#define HAVE_INTERNAL_SEND_SYMBOL	1