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1/*
2 * Copyright © 2018, VideoLAN and dav1d authors
3 * Copyright © 2023, Nathan Egge
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice, this
10 *    list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice,
13 *    this list of conditions and the following disclaimer in the documentation
14 *    and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef DAV1D_SRC_RISCV_ASM_S
29#define DAV1D_SRC_RISCV_ASM_S
30
31#include "config.h"
32
33#if !defined(PIC)
34#if defined(__PIC__)
35#define PIC __PIC__
36#elif defined(__pic__)
37#define PIC __pic__
38#endif
39#endif
40
41#ifndef PRIVATE_PREFIX
42#define PRIVATE_PREFIX dav1d_
43#endif
44
45#define PASTE(a,b) a ## b
46#define CONCAT(a,b) PASTE(a,b)
47
48#ifdef PREFIX
49#define EXTERN CONCAT(_,PRIVATE_PREFIX)
50#else
51#define EXTERN PRIVATE_PREFIX
52#endif
53
54.macro function name, export=0, ext=
55    .macro endfunc
56#ifdef __ELF__
57        .size   \name, . - \name
58#endif
59        .option pop
60        .purgem endfunc
61    .endm
62        .text
63        .option push
64    .ifnb \ext
65        .option arch, +\ext
66    .endif
67    .if \export
68        .global EXTERN\name
69#ifdef __ELF__
70        .type   EXTERN\name, %function
71        .hidden EXTERN\name
72#elif defined(__MACH__)
73        .private_extern EXTERN\name
74#endif
75EXTERN\name:
76    .else
77#ifdef __ELF__
78        .type \name, %function
79#endif
80    .endif
81\name:
82.endm
83
84.macro  const   name, export=0, align=2
85    .macro endconst
86#ifdef __ELF__
87        .size   \name, . - \name
88#endif
89        .purgem endconst
90    .endm
91#if defined(_WIN32)
92        .section        .rdata
93#elif !defined(__MACH__)
94        .section        .rodata
95#else
96        .const_data
97#endif
98        .align          \align
99    .if \export
100        .global EXTERN\name
101#ifdef __ELF__
102        .hidden EXTERN\name
103#elif defined(__MACH__)
104        .private_extern EXTERN\name
105#endif
106EXTERN\name:
107    .endif
108\name:
109.endm
110
111.macro thread_local name, align=3, quads=1
112    .macro end_thread_local
113        .size  \name, . - \name
114        .purgem end_thread_local
115    .endm
116        .section .tbss, "waT"
117        .align \align
118        .hidden \name
119\name:
120    .rept \quads
121        .quad 0
122    .endr
123        end_thread_local
124.endm
125
126#define L(x) .L ## x
127
128#endif /* DAV1D_SRC_RISCV_ASM_S */
129