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1 /*
2  * Copyright (C) 2013 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #pragma once
18 
19 // Some FreeBSD source includes <complex.h> and assumes <math.h> from that.
20 #include <math.h>
21 #include <float.h>
22 
23 #define __weak_reference(sym,alias)     \
24     __asm__(".weak " #alias);           \
25     __asm__(".equ "  #alias ", " #sym)
26 
27 #define __strong_reference(sym,aliassym) \
28     extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)))
29 
30 #define __warn_references(sym,msg) /* ignored */
31 
32 // digittoint is in BSD's <ctype.h>, but not ours, so we have a secret
33 // implementation in libm. We reuse parts of libm in the NDK's
34 // libandroid_support, where it's a static library, so we want all our
35 // "hidden" functions start with a double underscore --- being HIDDEN
36 // in the ELF sense is not sufficient.
37 #define digittoint __libm_digittoint
38 int digittoint(char ch);
39 
40 // Similarly rename _scan_nan.
41 #define _scan_nan __libm_scan_nan
42 
43 // FreeBSD exports these in <math.h> but we don't.
44 double cospi(double);
45 double sinpi(double);
46