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Index > Main > Can I include library code without using third-party linker?
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Jin X



Joined: 06 Mar 2004
Posts: 133
Location: Russia
Jin X 04 Apr 2018, 09:23
Hello!
Can I include library code without using third-party linker?
Post 04 Apr 2018, 09:23
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 20299
Location: In your JS exploiting you and your system
revolution 04 Apr 2018, 09:38
There is the file directive in fasm, so it could be done in theory. But you would have to write your own processing code (i.e. load, store, etc.) because AFAIAA no one else has done it yet.
Post 04 Apr 2018, 09:38
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Jin X



Joined: 06 Mar 2004
Posts: 133
Location: Russia
Jin X 04 Apr 2018, 10:08
revolution, file??? I'm saying about library, not raw data.
Post 04 Apr 2018, 10:08
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DimonSoft



Joined: 03 Mar 2010
Posts: 1228
Location: Belarus
DimonSoft 04 Apr 2018, 10:13
Jin X wrote:
revolution, file??? I'm saying about library, not raw data.

revolution wrote:
But you would have to write your own processing code (i.e. load, store, etc.)
Post 04 Apr 2018, 10:13
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 20299
Location: In your JS exploiting you and your system
revolution 04 Apr 2018, 10:13
Jin X wrote:
revolution, file??? I'm saying about library, not raw data.
Yeah, but a library is really just a file on disc. It can be parsed within fasm source code with file, load, store, virtual, etc.
Post 04 Apr 2018, 10:13
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Jin X



Joined: 06 Mar 2004
Posts: 133
Location: Russia
Jin X 04 Apr 2018, 10:18
revolution wrote:
It can be parsed within fasm source code with file, load, store, virtual, etc.
It's too mad idea Smile
I'm asking about build-in solution...
Post 04 Apr 2018, 10:18
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 20299
Location: In your JS exploiting you and your system
revolution 04 Apr 2018, 10:21
Jin X wrote:
I'm asking about build-in solution...
It currently doesn't exist. Hence the other suggestion.
Post 04 Apr 2018, 10:21
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Tomasz Grysztar



Joined: 16 Jun 2003
Posts: 8351
Location: Kraków, Poland
Tomasz Grysztar 04 Apr 2018, 10:26
Jin X wrote:
revolution wrote:
It can be parsed within fasm source code with file, load, store, virtual, etc.
It's too mad idea Smile
I'm asking about build-in solution...
It is not so mad, in fact I have been considering writing some linking macros for fasmg (as all the formatters for fasmg are also in form of macros already). And since the directives that revolution mentioned would suffice for such purpose, such macros could probably be ported to fasm 1 too, because these directives are mostly compatible between fasm 1 and fasm g.
Post 04 Apr 2018, 10:26
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Jin X



Joined: 06 Mar 2004
Posts: 133
Location: Russia
Jin X 04 Apr 2018, 10:37
Ok, but can I use includes like win32a.inc for MS COFF output format (to link it with library that I need by external linker)?

The following codes don't work...
Code:
format MS COFF

include 'win32axp.inc'

.code
 
start:

                invoke  MessageBox, 0, 'Hello!', 'Hi', MB_OK or MB_ICONWARNING or MB_TASKMODAL or MB_SETFOREGROUND
                invoke  ExitProcess, 0

.end    start


Code:
format  MS COFF

include 'win32axp.inc'

.code
 
start:

                cinvoke printf, <'Hello World!',13,10>
                invoke  ExitProcess, 0

section '.idata' import data readable

library kernel32, 'kernel32.dll',\
        msvcrt, 'msvcrt.dll'

        import_kernel32
        all_api
 
import  msvcrt,\
        printf, 'printf'
Post 04 Apr 2018, 10:37
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
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revolution 04 Apr 2018, 10:48
"MS COFF" doesn't work like that. Instead you need to use extrn and public. The linker handles all the other stuff like kernel32 etc.
Post 04 Apr 2018, 10:48
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