/**
* vim: set ts=4 :
* =============================================================================
* SourcePawn
* Copyright (C) 2004-2008 AlliedModders LLC. All rights reserved.
* =============================================================================
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, version 3.0, as published by the
* Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, AlliedModders LLC gives you permission to link the
* code of this program (as well as its derivative works) to "Half-Life 2," the
* "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
* by the Valve Corporation. You must obey the GNU General Public License in
* all respects for all other code used. Additionally, AlliedModders LLC grants
* this exception to all derivative works. AlliedModders LLC defines further
* exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
* or <http://www.sourcemod.net/license.php>.
*
* Version: $Id$
*/
#ifndef _INCLUDE_SPFILE_HEADERS_H
#define _INCLUDE_SPFILE_HEADERS_H
/**
* @file sp_file_headers.h
* @brief Defines the structure present in a SourcePawn compiled binary.
*
* Note: These structures should be 1-byte packed to match the file format.
*/
#include <stddef.h>
#if defined __GNUC__ || defined HAVE_STDINT_
#include <stdint.h>
#else
#if !defined HAVE_STDINT_H
typedef unsigned __int64 uint64_t; /**< 64bit unsigned integer */
typedef __int64 int64_t; /**< 64bit signed integer */
typedef unsigned __int32 uint32_t; /**< 32bit unsigned integer */
typedef __int32 int32_t; /**< 32bit signed integer */
typedef unsigned __int16 uint16_t; /**< 16bit unsigned integer */
typedef __int16 int16_t; /**< 16bit signed integer */
typedef unsigned __int8 uint8_t; /**< 8bit unsigned integer */
typedef __int8 int8_t; /**< 8bit signed integer */
#define HAVE_STDINT_H
#endif
#endif
#define SPFILE_MAGIC 0x53504646 /**< Source Pawn File Format (SPFF) */
#define SPFILE_VERSION 0x0102 /**< File format version */
//:TODO: better compiler/nix support
#if defined __GNUC__
#pragma pack(1) /* structures must be packed (byte-aligned) */
#else
#pragma pack(push)
#pragma pack(1) /* structures must be packed (byte-aligned) */
#endif
#define SPFILE_COMPRESSION_NONE 0 /**< No compression in file */
#define SPFILE_COMPRESSION_GZ 1 /**< GZ compression */
/**
* @brief File section header format.
*/
typedef struct sp_file_section_s
{
uint32_t nameoffs; /**< Relative offset into global string table */
uint32_t dataoffs; /**< Offset into the data section of the file */
uint32_t size; /**< Size of the section's entry in the data section */
} sp_file_section_t;
/**
* @brief File header format. If compression is 0, then disksize may be 0
* to mean that only the imagesize is needed.
*/
typedef struct sp_file_hdr_s
{
uint32_t magic; /**< Magic number */
uint16_t version; /**< Version code */
uint8_t compression;/**< Compression algorithm */
uint32_t disksize; /**< Size on disk */
uint32_t imagesize; /**< Size in memory */
uint8_t sections; /**< Number of sections */
uint32_t stringtab; /**< Offset to string table */
uint32_t dataoffs; /**< Offset to file proper (any compression starts here) */
} sp_file_hdr_t;
#define SP_FLAG_DEBUG (1<<0) /**< Debug information is present in the file */
#define SP_CODEVERS_JIT1 9 /**< Code version for JIT1 */
#define SP_CODEVERS_JIT2 10 /**< Code version for JIT2 */
/**
* @brief File-encoded format of the ".code" section.
*/
typedef struct sp_file_code_s
{
uint32_t codesize; /**< Codesize in bytes */
uint8_t cellsize; /**< Cellsize in bytes */
uint8_t codeversion; /**< Version of opcodes supported */
uint16_t flags; /**< Flags */
uint32_t main; /**< Address to "main," if any */
uint32_t code; /**< Relative offset to code */
} sp_file_code_t;
/**
* @brief File-encoded format of the ".data" section.
*/
typedef struct sp_file_data_s
{
uint32_t datasize; /**< Size of data section in memory */
uint32_t memsize; /**< Total mem required (includes data) */
uint32_t data; /**< File offset to data (helper) */
} sp_file_data_t;
/**
* @brief File-encoded format of the ".publics" section.
*/
typedef struct sp_file_publics_s
{
uint32_t address; /**< Address relative to code section */
uint32_t name; /**< Index into nametable */
} sp_file_publics_t;
/**
* @brief File-encoded format of the ".natives" section.
*/
typedef struct sp_file_natives_s
{
uint32_t name; /**< Index into nametable */
} sp_file_natives_t;
/**
* @brief File-encoded format of the ".pubvars" section.
*/
typedef struct sp_file_pubvars_s
{
uint32_t address; /**< Address relative to the DAT section */
uint32_t name; /**< Index into nametable */
} sp_file_pubvars_t;
/**
* @brief File-encoded tag info.
*/
typedef struct sp_file_tag_s
{
uint32_t tag_id; /**< Tag ID from compiler */
uint32_t name; /**< Index into nametable */
} sp_file_tag_t;
/**
* @brief File-encoded debug information table.
*/
typedef struct sp_fdbg_info_s
{
uint32_t num_files; /**< number of files */
uint32_t num_lines; /**< number of lines */
uint32_t num_syms; /**< number of symbols */
uint32_t num_arrays; /**< number of symbols which are arrays */
} sp_fdbg_info_t;
/**
* @brief File-encoded debug file table.
*/
typedef struct sp_fdbg_file_s
{
uint32_t addr; /**< Address into code */
uint32_t name; /**< Offset into debug nametable */
} sp_fdbg_file_t;
/**
* @brief File-encoded debug line table.
*/
typedef struct sp_fdbg_line_s
{
uint32_t addr; /**< Address into code */
uint32_t line; /**< Line number */
} sp_fdbg_line_t;
#define SP_SYM_VARIABLE 1 /**< Cell that has an address and that can be fetched directly (lvalue) */
#define SP_SYM_REFERENCE 2 /**< VARIABLE, but must be dereferenced */
#define SP_SYM_ARRAY 3 /**< Symbol is an array */
#define SP_SYM_REFARRAY 4 /**< An array passed by reference (i.e. a pointer) */
#define SP_SYM_FUNCTION 9 /**< Symbol is a function */
#define SP_SYM_VARARGS 11 /**< Variadic argument start. */
/**
* @brief File-encoded debug symbol information.
*/
typedef struct sp_fdbg_symbol_s
{
int32_t addr; /**< Address rel to DAT or stack frame */
int16_t tagid; /**< Tag id */
uint32_t codestart; /**< Start scope validity in code */
uint32_t codeend; /**< End scope validity in code */
uint8_t ident; /**< Variable type */
uint8_t vclass; /**< Scope class (local vs global) */
uint16_t dimcount; /**< Dimension count (for arrays) */
uint32_t name; /**< Offset into debug nametable */
} sp_fdbg_symbol_t;
/**
* @brief File-encoded debug symbol array dimension info.
*/
typedef struct sp_fdbg_arraydim_s
{
int16_t tagid; /**< Tag id */
uint32_t size; /**< Size of dimension */
} sp_fdbg_arraydim_t;
/** Typedef for .names table */
typedef char * sp_file_nametab_t;
/**
* @brief File encoding for the dbg.natives table.
*
* This header is followed by variable length entries of sp_fdbg_native.
*/
typedef struct sp_fdbg_ntvtab_s
{
uint32_t num_entries; /**< Number of entries. */
} sp_fdbg_ntvtab_t;
#define SP_NTVDBG_VARARGS (1<<0) /**< Formal args are followed by '...' */
/**
* @brief File encoding of native debug info.
*
* Each entry is followed by an sp_fdbg_ntvarg_t for each narg.
*/
typedef struct sp_fdbg_native_s
{
uint32_t index; /**< Native index in the plugin. */
uint32_t name; /**< Offset into debug nametable. */
int16_t tagid; /**< Return tag. */
uint16_t nargs; /**< Number of formal arguments. */
} sp_fdbg_native_t;
/**
* @brief File encoding of native arguments.
*
* Each entry is followed by an sp_fdbg_arraydim_t for each dimcount.
*/
typedef struct fp_fdbg_ntvarg_s
{
uint8_t ident; /**< Variable type */
int16_t tagid; /**< Tag id */
uint16_t dimcount; /**< Dimension count (for arrays) */
uint32_t name; /**< Offset into debug nametable */
} sp_fdbg_ntvarg_t;
#if defined __linux__
#pragma pack() /* reset default packing */
#else
#pragma pack(pop) /* reset previous packing */
#endif
/**
* Okay, my mistake here. I apologize. I changed the packing by accident and there is no
* version bump aside from the presence of the native debug table. Cat's out of the bag
* for SourceMod and we have no choice but to shim compat for the old version. For people
* parsing plugins on their own, use the presence of the native debug table to decide this.
* If there are no natives (really, there is a very very low chance of this), heuristics
* might be necessary. I've bumped the version to 0x0102 but there may have been plugins
* in the 0x0101 window with no natives.
*/
/**
* @brief Unpacked file-encoded debug symbol array dimension info.
*/
typedef struct sp_u_fdbg_arraydim_s
{
int16_t tagid; /**< Tag id */
uint32_t size; /**< Size of dimension */
} sp_u_fdbg_arraydim_t;
/**
* @brief Unpacked file-encoded debug symbol information.
*/
typedef struct sp_u_fdbg_symbol_s
{
int32_t addr; /**< Address rel to DAT or stack frame */
int16_t tagid; /**< Tag id */
uint32_t codestart; /**< Start scope validity in code */
uint32_t codeend; /**< End scope validity in code */
uint8_t ident; /**< Variable type */
uint8_t vclass; /**< Scope class (local vs global) */
uint16_t dimcount; /**< Dimension count (for arrays) */
uint32_t name; /**< Offset into debug nametable */
} sp_u_fdbg_symbol_t;
#endif //_INCLUDE_SPFILE_HEADERS_H