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Smellyhobo101
Newbie cheater
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Joined: 21 Sep 2014
Posts: 23
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 Posted: Wed Feb 21, 2018 8:57 pm Post subject: Loading DWARF debug information? |
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I've been working on modding this game called "Remnants of Naezith". Cheat Engine doesn't find any debug symbols for the game, but when I open up the exe in IDA it detects and loads "DWARF debug information". That provides all the function names and lots of variable names. Is there any way I can get CE to load this information? I can use IDA to generate a .map file that contains all the symbols, but CE doesn't load it when I set the symbol search path. The .map file contains all the symbols in a big list like this:
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00000001:0000000000118070 Player::flipAnimation(Animation &,int)
00000001:00000000001181D0 Player::spawnPlayer(void)
00000001:00000000001182B0 Player::addMSx(float)
00000001:00000000001183D0 Player::addMS(sf::Vector2<float>)
00000001:0000000000118400 Player::moveRight(void)
00000001:0000000000118600 Player::moveLeft(void)
00000001:0000000000118830 Player::applyFriction(void)
00000001:00000000001188B0 Player::addMSy(float)
00000001:00000000001188D0 Player::setMS(sf::Vector2<float>)
00000001:0000000000118930 Player::setMSx(float)
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I'm considering writing a LUA script that will parse this file and register all the symbols automatically, but before I do that I figured I would ask here if CE supports some way of loading these symbols already?
Thanks.
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Dark Byte
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Joined: 09 May 2003
Posts: 25287
Location: The netherlands
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| Posted: Thu Feb 22, 2018 12:16 am Post subject: |
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no, ce doesn't support DWARF at the moment (i havn't seen it used in windows often)
but if you use lua i suggest looking into the "SymbolList" class (createSymbolList()) and just fill it with the map info
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Smellyhobo101
Newbie cheater
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Joined: 21 Sep 2014
Posts: 23
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| Posted: Thu Feb 22, 2018 5:01 am Post subject: |
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That worked great, thanks.
For anyone else that is working with DWARF debug data, you can use this auto assembler script to import it:
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[ENABLE]
{$lua}
-- see if the file exists
local function file_exists(file)
local f = io.open(file, "rb")
if f then f:close() end
return f ~= nil
end
-- get all lines from a file, returns an empty
-- list/table if the file does not exist
local function lines_from(file)
if not file_exists(file) then return {} end
lines = {}
for line in io.lines(file) do
lines[#lines + 1] = line
end
return lines
end
-- this pattern captures the name, location, and size from each line.
-- Example line: AIManager::AIManager(void)\t.text\t0000000000401D60\t00000E6A\t(bunch of other junk)
-- psuedo pattern: (everything_not_tab) + "\teverything_not_tab\t" + (hex_number) + "\t" + (hex_number)
local pattern = "([^\t]+)" .. "\t[^\t]+\t" .. "(%x+)" .. "\t" .. "(%x+)"
-- Get table containing lines of text from "IDA_functions.txt"
local file = TrainerOrigin.."IDA_functions.txt"
local lines = lines_from(file)
sl = createSymbolList()
-- Iterate through the lines in the map file
for k,v in pairs(lines) do
-- Capture the section, offset, and symbol name
local name, location, size = string.match(v, pattern)
local location = tonumber("0x" .. location)
local size = tonumber("0x" .. size)
sl.addSymbol(process, name, location, size)
end
sl.register()
{$asm}
[DISABLE]
{$lua}
sl.unregister()
sl = nil
{$asm}
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Just copy/paste all the functions from the functions window in IDA into a file named IDA_functions.txt in your cheat table directory.[/quote]
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