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Update LZMA SDK to 24.09

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Nikolaj Schlej 2025-02-14 06:45:33 +01:00
parent e66bc7d8dc
commit 65fb4a86b6
19 changed files with 3262 additions and 1394 deletions
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123
common/LZMA/SDK/C/Bra.h
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@ -1,64 +1,105 @@
/* Bra.h -- Branch converters for executables
2013-01-18 : Igor Pavlov : Public domain */
2024-01-20 : Igor Pavlov : Public domain */
#ifndef __BRA_H
#define __BRA_H
#ifndef ZIP7_INC_BRA_H
#define ZIP7_INC_BRA_H
#include "7zTypes.h"
EXTERN_C_BEGIN
/*
These functions convert relative addresses to absolute addresses
in CALL instructions to increase the compression ratio.
In:
data - data buffer
size - size of data
ip - current virtual Instruction Pinter (IP) value
state - state variable for x86 converter
encoding - 0 (for decoding), 1 (for encoding)
Out:
state - state variable for x86 converter
/* #define PPC BAD_PPC_11 // for debug */
Returns:
The number of processed bytes. If you call these functions with multiple calls,
you must start next call with first byte after block of processed bytes.
#define Z7_BRANCH_CONV_DEC_2(name) z7_ ## name ## _Dec
#define Z7_BRANCH_CONV_ENC_2(name) z7_ ## name ## _Enc
#define Z7_BRANCH_CONV_DEC(name) Z7_BRANCH_CONV_DEC_2(BranchConv_ ## name)
#define Z7_BRANCH_CONV_ENC(name) Z7_BRANCH_CONV_ENC_2(BranchConv_ ## name)
#define Z7_BRANCH_CONV_ST_DEC(name) z7_BranchConvSt_ ## name ## _Dec
#define Z7_BRANCH_CONV_ST_ENC(name) z7_BranchConvSt_ ## name ## _Enc
#define Z7_BRANCH_CONV_DECL(name) Byte * name(Byte *data, SizeT size, UInt32 pc)
#define Z7_BRANCH_CONV_ST_DECL(name) Byte * name(Byte *data, SizeT size, UInt32 pc, UInt32 *state)
typedef Z7_BRANCH_CONV_DECL( (*z7_Func_BranchConv));
typedef Z7_BRANCH_CONV_ST_DECL((*z7_Func_BranchConvSt));
#define Z7_BRANCH_CONV_ST_X86_STATE_INIT_VAL 0
Z7_BRANCH_CONV_ST_DECL (Z7_BRANCH_CONV_ST_DEC(X86));
Z7_BRANCH_CONV_ST_DECL (Z7_BRANCH_CONV_ST_ENC(X86));
#define Z7_BRANCH_FUNCS_DECL(name) \
Z7_BRANCH_CONV_DECL (Z7_BRANCH_CONV_DEC_2(name)); \
Z7_BRANCH_CONV_DECL (Z7_BRANCH_CONV_ENC_2(name));
Z7_BRANCH_FUNCS_DECL (BranchConv_ARM64)
Z7_BRANCH_FUNCS_DECL (BranchConv_ARM)
Z7_BRANCH_FUNCS_DECL (BranchConv_ARMT)
Z7_BRANCH_FUNCS_DECL (BranchConv_PPC)
Z7_BRANCH_FUNCS_DECL (BranchConv_SPARC)
Z7_BRANCH_FUNCS_DECL (BranchConv_IA64)
Z7_BRANCH_FUNCS_DECL (BranchConv_RISCV)
/*
These functions convert data that contain CPU instructions.
Each such function converts relative addresses to absolute addresses in some
branch instructions: CALL (in all converters) and JUMP (X86 converter only).
Such conversion allows to increase compression ratio, if we compress that data.
There are 2 types of converters:
Byte * Conv_RISC (Byte *data, SizeT size, UInt32 pc);
Byte * ConvSt_X86(Byte *data, SizeT size, UInt32 pc, UInt32 *state);
Each Converter supports 2 versions: one for encoding
and one for decoding (_Enc/_Dec postfixes in function name).
In params:
data : data buffer
size : size of data
pc : current virtual Program Counter (Instruction Pointer) value
In/Out param:
state : pointer to state variable (for X86 converter only)
Return:
The pointer to position in (data) buffer after last byte that was processed.
If the caller calls converter again, it must call it starting with that position.
But the caller is allowed to move data in buffer. So pointer to
current processed position also will be changed for next call.
Also the caller must increase internal (pc) value for next call.
Each converter has some characteristics: Endian, Alignment, LookAhead.
Type Endian Alignment LookAhead
x86 little 1 4
X86 little 1 4
ARMT little 2 2
RISCV little 2 6
ARM little 4 0
ARM64 little 4 0
PPC big 4 0
SPARC big 4 0
IA64 little 16 0
size must be >= Alignment + LookAhead, if it's not last block.
If (size < Alignment + LookAhead), converter returns 0.
(data) must be aligned for (Alignment).
processed size can be calculated as:
SizeT processed = Conv(data, size, pc) - data;
if (processed == 0)
it means that converter needs more data for processing.
If (size < Alignment + LookAhead)
then (processed == 0) is allowed.
Example:
UInt32 ip = 0;
for ()
{
; size must be >= Alignment + LookAhead, if it's not last block
SizeT processed = Convert(data, size, ip, 1);
data += processed;
size -= processed;
ip += processed;
}
Example code for conversion in loop:
UInt32 pc = 0;
size = 0;
for (;;)
{
size += Load_more_input_data(data + size);
SizeT processed = Conv(data, size, pc) - data;
if (processed == 0 && no_more_input_data_after_size)
break; // we stop convert loop
data += processed;
size -= processed;
pc += processed;
}
*/
#define x86_Convert_Init(state) { state = 0; }
SizeT x86_Convert(Byte *data, SizeT size, UInt32 ip, UInt32 *state, int encoding);
SizeT ARM_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
SizeT ARMT_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
SizeT PPC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
SizeT SPARC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
SizeT IA64_Convert(Byte *data, SizeT size, UInt32 ip, int encoding);
EXTERN_C_END
#endif