platform_bionic/libc/arch-x86/static_function_dispatch.S
Haibo Huang e141362aa1 Change memcpy ifunc to return memmove for x86
It is cleaner to do this with ifunc. This is a partial revert of:
https://android-review.googlesource.com/c/platform/bionic/+/693863

Test: run bionic unit test
Change-Id: I5fb5745fc98807805aedb94b683e959e2a76a25d
2018-11-13 14:23:19 -08:00

52 lines
2.2 KiB
ArmAsm

/*
* Copyright (C) 2018 The Android Open Source Project
* 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.
*
* 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 <private/bionic_asm.h>
#define FUNCTION_DELEGATE(name, impl) \
ENTRY(name); \
jmp impl; \
END(name)
FUNCTION_DELEGATE(memcmp, memcmp_generic)
FUNCTION_DELEGATE(memset, memset_generic)
FUNCTION_DELEGATE(__memset_chk, __memset_chk_generic)
FUNCTION_DELEGATE(memcpy, memmove_generic)
FUNCTION_DELEGATE(memmove, memmove_generic)
FUNCTION_DELEGATE(strcpy, strcpy_generic)
FUNCTION_DELEGATE(strncpy, strncpy_generic)
FUNCTION_DELEGATE(strlen, strlen_generic)
FUNCTION_DELEGATE(strcmp, strcmp_generic)
FUNCTION_DELEGATE(strncmp, strncmp_generic)
FUNCTION_DELEGATE(strcat, strcat_generic)
FUNCTION_DELEGATE(wmemcmp, wmemcmp_freebsd)
FUNCTION_DELEGATE(wcscat, wcscat_freebsd)
FUNCTION_DELEGATE(strncat, strncat_openbsd)
FUNCTION_DELEGATE(strlcat, strlcat_openbsd)
FUNCTION_DELEGATE(strlcpy, strlcpy_openbsd)
FUNCTION_DELEGATE(wcscpy, wcscpy_freebsd)