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760cc57bef
Move the backtracing code into a new Runtime module. This means renaming the Swift Runtime's CMake target because otherwise there will be a name clash. rdar://124913332
169 lines
3.7 KiB
C++
169 lines
3.7 KiB
C++
//===--- Compression.h - C decls for compression libraries ------*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2023 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// Includes and definitions to allow us to use the compression libraries
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// (zlib, zstd and liblzma) in the backtracing module.
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_BACKTRACING_COMPRESSION_H
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#define SWIFT_BACKTRACING_COMPRESSION_H
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#include <stdint.h>
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#include <stdlib.h>
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// Right now, we're soft linking to zlib/zstd/liblzma, so that users don't
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// need it installed (but if they try to do something that requires it,
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// they'll see an error message).
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//
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// As a result, we've grabbed copies of the relevant definitions here so
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// that we don't need to install the -dev packages in order to build Swift.
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#if SWIFT_BACKTRACE_STATIC_ZLIB
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#include "zlib.h"
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#else
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// This is the version we took the z_stream structure from
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#define ZLIB_VERSION "1.2.11"
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#define Z_OK 0
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#define Z_STREAM_END 1
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#define Z_NO_FLUSH 0
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typedef struct z_stream_s {
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uint8_t *next_in;
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unsigned avail_in;
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unsigned long total_in;
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uint8_t *next_out;
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unsigned avail_out;
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unsigned long total_out;
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const char *msg;
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struct internal_state *state;
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void (*zalloc)(void *, unsigned, unsigned);
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void (*zfree)(void *, void *);
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void *opaque;
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int data_type;
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unsigned long adler;
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unsigned long reserved;
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} z_stream;
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typedef z_stream *z_streamp;
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#endif
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#if SWIFT_BACKTRACE_STATIC_ZSTD
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#include "zstd.h"
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#else
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typedef struct ZSTD_inBuffer_s {
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const void *src;
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size_t size;
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size_t pos;
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} ZSTD_inBuffer;
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typedef struct ZSTD_outBuffer_s {
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void *dst;
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size_t size;
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size_t pos;
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} ZSTD_outBuffer;
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#endif
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#if SWIFT_BACKTRACE_STATIC_LIBLZMA
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#include "lzma.h"
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#else
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typedef enum {
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LZMA_OK = 0,
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LZMA_STREAM_END = 1,
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LZMA_NO_CHECK = 2,
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LZMA_UNSUPPORTED_CHECK = 3,
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LZMA_GET_CHECK = 4,
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LZMA_MEM_ERROR = 5,
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LZMA_MEMLIMIT_ERROR = 6,
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LZMA_FORMAT_ERROR = 7,
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LZMA_OPTIONS_ERROR = 8,
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LZMA_DATA_ERROR = 9,
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LZMA_BUF_ERROR = 10,
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LZMA_PROG_ERROR = 11,
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} lzma_ret;
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typedef enum {
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LZMA_RUN = 0,
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LZMA_SYNC_FLUSH = 1,
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LZMA_FULL_FLUSH = 2,
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LZMA_FULL_BARRIER = 4,
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LZMA_FINISH = 3
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} lzma_action;
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typedef enum {
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LZMA_RESERVED_ENUM = 0,
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} lzma_reserved_enum;
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typedef struct {
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void *(*alloc)(void *, size_t, size_t);
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void (*free)(void *, void *);
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void *opaque;
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} lzma_allocator;
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typedef struct lzma_internal_s lzma_internal;
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typedef struct {
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const uint8_t *next_in;
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size_t avail_in;
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uint64_t total_in;
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uint8_t *next_out;
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size_t avail_out;
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uint64_t total_out;
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const lzma_allocator *allocator;
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lzma_internal *internal;
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void *reserved_ptr1;
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void *reserved_ptr2;
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void *reserved_ptr3;
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void *reserved_ptr4;
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uint64_t reserved_int1;
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uint64_t reserved_int2;
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size_t reserved_int3;
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size_t reserved_int4;
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lzma_reserved_enum reserved_enum1;
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lzma_reserved_enum reserved_enum2;
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} lzma_stream;
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#define LZMA_STREAM_INIT {0}
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#endif
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#ifdef __cplusplus
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namespace swift {
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namespace runtime {
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#endif
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// The Swift importer can't cope with complex macros; it will do inline
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// functions, however.
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static inline lzma_stream lzma_stream_init() {
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return (lzma_stream)LZMA_STREAM_INIT;
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}
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static inline z_stream zlib_stream_init() {
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return (z_stream){ 0 };
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}
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#ifdef __cplusplus
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} // namespace runtime
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} // namespace swift
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#endif
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#endif // SWIFT_BACKTRACING_COMPRESSION_H
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