mirror of
https://github.com/LongSoft/UEFITool.git
synced 2024-11-23 00:18:23 +08:00
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
|
/* Bra.h -- Branch converters for executables
|
||
|
|
2009-02-07 : Igor Pavlov : Public domain */
|
||
|
|
|
||
|
|
#ifndef __BRA_H
|
||
|
|
#define __BRA_H
|
||
|
|
|
||
|
|
#include "Types.h"
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
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
|
||
|
|
|
||
|
|
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.
|
||
|
|
|
||
|
|
Type Endian Alignment LookAhead
|
||
|
|
|
||
|
|
x86 little 1 4
|
||
|
|
ARMT little 2 2
|
||
|
|
ARM 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.
|
||
|
|
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
*/
|
||
|
|
|
||
|
|
#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);
|
||
|
|
|
||
|
|
#ifdef __cplusplus
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif
|