Resource : How do you achieve exact same binary on a resourced file

kamelito · 29 April 2021, 23:27

I find quite tedious to have an identical file after having resourced a medium sized program. (15k lines for example)

What are the tricks/options/steps... you use/take to have the same file after reassembling a quite long resourced file?
cheers.

meynaf · 30 April 2021, 08:00

First step is to get a file that has the exact same size. Normally turning off all asm optimizations is enough.
Then compare the files and check the diffs one by one. It is sometimes just impossible to produce an identical exe (unless you know and can use the exact same tools that were originally used), but if you know that all diffs don't have any impact (i.e. reloc table ordered differently) then it's enough (at least for me).

kamelito · 30 April 2021, 10:06

When I use "save executable" it is the same file, but if I save source then assemble it is not.

meynaf · 30 April 2021, 10:15

If "save executable" just makes a copy of the file this sounds quite normal...

kamelito · 30 April 2021, 10:59

You can have it with symbols so I thought it was not

kamelito · 30 April 2021, 17:17

I’m fed up looking for errors leading to crash in some areas I’m gonna use IRA instead.

29 April 2021, 23:27	#1
kamelito Zone Friend Join Date: May 2006 Location: France Posts: 1,803	Resource : How do you achieve exact same binary on a resourced file I find quite tedious to have an identical file after having resourced a medium sized program. (15k lines for example) What are the tricks/options/steps... you use/take to have the same file after reassembling a quite long resourced file? cheers.

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30 April 2021, 08:00	#2
meynaf son of 68k Join Date: Nov 2007 Location: Lyon / France Age: 51 Posts: 5,335	First step is to get a file that has the exact same size. Normally turning off all asm optimizations is enough. Then compare the files and check the diffs one by one. It is sometimes just impossible to produce an identical exe (unless you know and can use the exact same tools that were originally used), but if you know that all diffs don't have any impact (i.e. reloc table ordered differently) then it's enough (at least for me).

30 April 2021, 10:06	#3
kamelito Zone Friend Join Date: May 2006 Location: France Posts: 1,803	When I use "save executable" it is the same file, but if I save source then assemble it is not.

30 April 2021, 10:15	#4
meynaf son of 68k Join Date: Nov 2007 Location: Lyon / France Age: 51 Posts: 5,335	If "save executable" just makes a copy of the file this sounds quite normal...

30 April 2021, 10:59	#5
kamelito Zone Friend Join Date: May 2006 Location: France Posts: 1,803	You can have it with symbols so I thought it was not

30 April 2021, 17:17	#6
kamelito Zone Friend Join Date: May 2006 Location: France Posts: 1,803	I’m fed up looking for errors leading to crash in some areas I’m gonna use IRA instead.

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