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/**
* \file lzma/bcj.h
* \brief Branch/Call/Jump conversion filters
*/
/*
* Author: Lasse Collin
*
* This file has been put into the public domain.
* You can do whatever you want with this file.
*
* See ../lzma.h for information about liblzma as a whole.
*/
#ifndef LZMA_H_INTERNAL
# error Never include this file directly. Use <lzma.h> instead.
#endif
/* Filter IDs for lzma_filter.id */
#define LZMA_FILTER_X86 LZMA_VLI_C(0x04)
/**<
* Filter for x86 binaries
*/
#define LZMA_FILTER_POWERPC LZMA_VLI_C(0x05)
/**<
* Filter for Big endian PowerPC binaries
*/
#define LZMA_FILTER_IA64 LZMA_VLI_C(0x06)
/**<
* Filter for IA-64 (Itanium) binaries.
*/
#define LZMA_FILTER_ARM LZMA_VLI_C(0x07)
/**<
* Filter for ARM binaries.
*/
#define LZMA_FILTER_ARMTHUMB LZMA_VLI_C(0x08)
/**<
* Filter for ARM-Thumb binaries.
*/
#define LZMA_FILTER_SPARC LZMA_VLI_C(0x09)
/**<
* Filter for SPARC binaries.
*/
/**
* \brief Options for BCJ filters
*
* The BCJ filters never change the size of the data. Specifying options
* for them is optional: if pointer to options is NULL, default value is
* used. You probably never need to specify options to BCJ filters, so just
* set the options pointer to NULL and be happy.
*
* If options with non-default values have been specified when encoding,
* the same options must also be specified when decoding.
*
* \note At the moment, none of the BCJ filters support
* LZMA_SYNC_FLUSH. If LZMA_SYNC_FLUSH is specified,
* LZMA_OPTIONS_ERROR will be returned. If there is need,
* partial support for LZMA_SYNC_FLUSH can be added in future.
* Partial means that flushing would be possible only at
* offsets that are multiple of 2, 4, or 16 depending on
* the filter, except x86 which cannot be made to support
* LZMA_SYNC_FLUSH predictably.
*/
typedef struct {
/**
* \brief Start offset for conversions
*
* This setting is useful only when the same filter is used
* _separately_ for multiple sections of the same executable file,
* and the sections contain cross-section branch/call/jump
* instructions. In that case it is beneficial to set the start
* offset of the non-first sections so that the relative addresses
* of the cross-section branch/call/jump instructions will use the
* same absolute addresses as in the first section.
*
* When the pointer to options is NULL, the default value (zero)
* is used.
*/
uint32_t start_offset;
} lzma_options_bcj;