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revolution 08 Feb 2018, 09:12
The second isn't valid because of the line continuation backslash. "export" can't process the "include" directive. That would make it an inline macro which fasm doesn't support and "export" hasn't been coded to look for it.
The others are fine depending upon the contents of your "mydll.inc" file. BTW: These questions don't really relate to DLLs in particular, they are more tied to macro processing. Because "export", "import" and "library" are macros, not keywords. |
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08 Feb 2018, 09:12 |
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Ali.Z 08 Feb 2018, 10:09
ah thats sad, then i have to export every function using ,\
thanks rev. ok two more questions: - whats the keyword SHAREABLE <- and where i can use it .exe or .dll? and which section? - how to share data between .dll and .exe say in my exe i have ( check db 01 ) can my dll read and write it? |
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08 Feb 2018, 10:09 |
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revolution 08 Feb 2018, 15:24
Shareable is for sharing memory between processes. Within a single process all code can always read/write all memory that is mapped and has the proper permissions. DLLs don't get any sort of special memory allocation, it is all the same memory.
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08 Feb 2018, 15:24 |
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revolution 08 Feb 2018, 16:30
Ali.A wrote: ah thats sad, then i have to export every function using ,\ File: my_exports.inc Code: my_exports equ \ proc1,"proc1",\ proc2,"proc2",\ proc3,"proc3",\ proc4,"proc4" Code: include 'my_exports.inc' export 'MYDLL.DLL',my_exports |
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08 Feb 2018, 16:30 |
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Ali.Z 09 Feb 2018, 06:42
thanks for this rev, im not sure how to use this?
Code: BOOL WINAPI DllMain( _In_ HINSTANCE hinstDLL, _In_ DWORD fdwReason, _In_ LPVOID lpvReserved ); push 0 ; reserved push 1 ; attach but what should i push for hinstdll and when i try to call dllmain it gives me undefined symbol, thats my issue with dll main entry point. and i tried couple ways, sometimes it gives me EIP=0 lol. _________________ Asm For Wise Humans |
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09 Feb 2018, 06:42 |
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revolution 09 Feb 2018, 06:55
The DllMain function is called by the OS when the DLL is linked during program load/startup. Normally you won't call it from your own code.
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09 Feb 2018, 06:55 |
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Ali.Z 09 Feb 2018, 07:34
then why its not loading, and crashing .. when i debug it using olly i see eip=0
is there any specific code should be under dll entry point? |
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09 Feb 2018, 07:34 |
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revolution 09 Feb 2018, 07:34
Show your code.
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09 Feb 2018, 07:34 |
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Ali.Z 09 Feb 2018, 07:53
i just figured out why eip was 0.
i called a function that takes no parameters (void) and pushed 0 before calling it, thus when the execution hit RET/RETN the return value is 0 and whats why eip was 0. just a stupid mistake. |
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09 Feb 2018, 07:53 |
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Ali.Z 07 Jul 2018, 02:55
can i embed my dll in my exe?
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07 Jul 2018, 02:55 |
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DimonSoft 08 Jul 2018, 12:15
Ali.A wrote: can i embed my dll in my exe? You can but you wouldn’t generally want to since most antivirus crapware will call it something like Trojan.Dropper which would make your users being afraid of your program. |
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08 Jul 2018, 12:15 |
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Ali.Z 08 Jul 2018, 15:08
im not sure about AV flase positives, but i think embedding without compressing and/or packing shouldnt trigger AV alarms.
the question goes here, im sure fasm does not have options for embedding, so is it possible to achieve this without third-party tool? |
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08 Jul 2018, 15:08 |
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Ali.Z 11 Jul 2018, 20:02
ok no one answered, then what about static linking?
any idea? |
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11 Jul 2018, 20:02 |
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DimonSoft 11 Jul 2018, 21:30
Define the meaning of “embedding” for your task. I’m sure you already have to know what can be done to include an arbitrary file into your EXE if you’re trying to write your own DLL.
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11 Jul 2018, 21:30 |
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Ali.Z 11 Jul 2018, 22:04
section '.somename' code readable executable
file "my.dll" :'( i just had too much pressure |
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11 Jul 2018, 22:04 |
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