2 * Copyright (C) 2013 Jolla Ltd.
3 * Contact: Thomas Perl <thomas.perl@jollamobile.com>
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
18 #ifndef HYBRIS_FLOATING_POINT_ABI_H_
19 #define HYBRIS_FLOATING_POINT_ABI_H_
22 * Make sure to use FP_ATTRIB on all functions that are loaded from
23 * Android (bionic libc) libraries to make sure floating point arguments
24 * are passed the right way.
26 * See: http://wiki.debian.org/ArmHardFloatPort/VfpComparison
27 * http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html
29 * It doesn't hurt to have it added for non-floating point arguments and
30 * return types, even though it does not really have any effect.
32 * If you use the convenience macros in hybris/internal/binding.h, your
33 * wrapper functions will automatically make use of this attribute.
37 # define FP_ATTRIB __attribute__((pcs("aapcs")))
42 #endif /* HYBRIS_FLOATING_POINT_ABI_H_ */