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-rw-r--r--libc/string/cris/memcopy.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/libc/string/cris/memcopy.h b/libc/string/cris/memcopy.h
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+++ b/libc/string/cris/memcopy.h
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+/* Copyright (C) 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ Modified for use in uClibc (C) 2007 Axis Communications AB.
+ Minimal modifications: include path name and #undef of WORD_COPY_FWD/BWD
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#include "../generic/memcopy.h"
+
+/* We override the word-copying macros, partly because misalignment in one
+ pointer isn't cause for a special function, partly because we want to
+ get rid of all the static functions in generic/memcopy.c; these macros
+ are only used in memmove.c since we have arch-specific mempcpy, memcpy and
+ memset. */
+
+#undef OP_T_THRES
+#define OP_T_THRES OPSIZ
+
+#undef WORD_COPY_FWD
+#define WORD_COPY_FWD(dst_bp, src_bp, nbytes_left, nbytes) \
+ do \
+ { \
+ unsigned long enddst_bp = dst_bp + nbytes - (nbytes % OPSIZ); \
+ nbytes_left = (nbytes % OPSIZ); \
+ while (dst_bp < (unsigned long) enddst_bp) \
+ { \
+ op_t x = *(op_t *) src_bp; \
+ src_bp += sizeof x; \
+ *(op_t *) dst_bp = x; \
+ dst_bp += sizeof x; \
+ } \
+ } while (0)
+
+#undef WORD_COPY_BWD
+#define WORD_COPY_BWD(dst_bp, src_bp, nbytes_left, nbytes) \
+ do \
+ { \
+ unsigned long enddst_bp = dst_bp - nbytes + (nbytes % OPSIZ); \
+ nbytes_left = (nbytes % OPSIZ); \
+ while (dst_bp > enddst_bp) \
+ { \
+ op_t x; \
+ src_bp -= sizeof x; \
+ x = *(op_t *) src_bp; \
+ dst_bp -= sizeof x; \
+ *(op_t *) dst_bp = x; \
+ } \
+ } while (0)