diff options
Diffstat (limited to 'src/core/support/wrap_memcpy.c')
| -rw-r--r-- | src/core/support/wrap_memcpy.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/core/support/wrap_memcpy.c b/src/core/support/wrap_memcpy.c new file mode 100644 index 0000000000..ac30668ec1 --- /dev/null +++ b/src/core/support/wrap_memcpy.c @@ -0,0 +1,50 @@ +/* + * + * Copyright 2016, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include <string.h> + +/* Provide a wrapped memcpy for targets that need to be backwards + * compatible with older libc's. + * + * Enable by setting LDFLAGS=-Wl,-wrap,memcpy when linking. + */ + +#ifdef __linux__ +#ifdef __x86_64__ +__asm__(".symver memcpy,memcpy@GLIBC_2.2.5"); +#endif + +void *__wrap_memcpy(void *destination, const void *source, size_t num) { + return memcpy(destination, source, num); +} +#endif |