1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
//===--- Compression.h - C decls for compression libraries ------*- C++ -*-===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2023 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
//
// Includes and definitions to allow us to use the compression libraries
// (zlib, zstd and liblzma) in the backtracing module.
//
//===----------------------------------------------------------------------===//
#ifndef SWIFT_BACKTRACING_COMPRESSION_H
#define SWIFT_BACKTRACING_COMPRESSION_H
#include <stdint.h>
#include <stdlib.h>
// Right now, we're soft linking to zlib/zstd/liblzma, so that users don't
// need it installed (but if they try to do something that requires it,
// they'll see an error message).
//
// As a result, we've grabbed copies of the relevant definitions here so
// that we don't need to install the -dev packages in order to build Swift.
#if SWIFT_BACKTRACE_STATIC_ZLIB
#include "zlib.h"
#else
// This is the version we took the z_stream structure from
#define ZLIB_VERSION "1.2.11"
#define Z_OK 0
#define Z_STREAM_END 1
#define Z_NO_FLUSH 0
typedef struct z_stream_s {
uint8_t *next_in;
unsigned avail_in;
unsigned long total_in;
uint8_t *next_out;
unsigned avail_out;
unsigned long total_out;
const char *msg;
struct internal_state *state;
void (*zalloc)(void *, unsigned, unsigned);
void (*zfree)(void *, void *);
void *opaque;
int data_type;
unsigned long adler;
unsigned long reserved;
} z_stream;
typedef z_stream *z_streamp;
#endif
#if SWIFT_BACKTRACE_STATIC_ZSTD
#include "zstd.h"
#else
typedef struct ZSTD_inBuffer_s {
const void *src;
size_t size;
size_t pos;
} ZSTD_inBuffer;
typedef struct ZSTD_outBuffer_s {
void *dst;
size_t size;
size_t pos;
} ZSTD_outBuffer;
#endif
#if SWIFT_BACKTRACE_STATIC_LIBLZMA
#include "lzma.h"
#else
typedef enum {
LZMA_OK = 0,
LZMA_STREAM_END = 1,
LZMA_NO_CHECK = 2,
LZMA_UNSUPPORTED_CHECK = 3,
LZMA_GET_CHECK = 4,
LZMA_MEM_ERROR = 5,
LZMA_MEMLIMIT_ERROR = 6,
LZMA_FORMAT_ERROR = 7,
LZMA_OPTIONS_ERROR = 8,
LZMA_DATA_ERROR = 9,
LZMA_BUF_ERROR = 10,
LZMA_PROG_ERROR = 11,
} lzma_ret;
typedef enum {
LZMA_RUN = 0,
LZMA_SYNC_FLUSH = 1,
LZMA_FULL_FLUSH = 2,
LZMA_FULL_BARRIER = 4,
LZMA_FINISH = 3
} lzma_action;
typedef enum {
LZMA_RESERVED_ENUM = 0,
} lzma_reserved_enum;
typedef struct {
void *(*alloc)(void *, size_t, size_t);
void (*free)(void *, void *);
void *opaque;
} lzma_allocator;
typedef struct lzma_internal_s lzma_internal;
typedef struct {
const uint8_t *next_in;
size_t avail_in;
uint64_t total_in;
uint8_t *next_out;
size_t avail_out;
uint64_t total_out;
const lzma_allocator *allocator;
lzma_internal *internal;
void *reserved_ptr1;
void *reserved_ptr2;
void *reserved_ptr3;
void *reserved_ptr4;
uint64_t reserved_int1;
uint64_t reserved_int2;
size_t reserved_int3;
size_t reserved_int4;
lzma_reserved_enum reserved_enum1;
lzma_reserved_enum reserved_enum2;
} lzma_stream;
#define LZMA_STREAM_INIT {0}
#endif
#ifdef __cplusplus
namespace swift {
extern "C" {
#endif
// The Swift importer can't cope with complex macros; it will do inline
// functions, however.
static inline lzma_stream lzma_stream_init() {
return (lzma_stream)LZMA_STREAM_INIT;
}
static inline z_stream zlib_stream_init() {
return (z_stream){ 0 };
}
#ifdef __cplusplus
} // extern "C"
} // namespace swift
#endif
#endif // SWIFT_BACKTRACING_COMPRESSION_H
|
