Linux binary vs FreeBSD binary

F

fbsd_

I'm working on a project about recompiling Linux binaries to FreeBSD. No, I'm not talking about Linux binary compatibility. I want to do something different. I know FreeBSD and Linux are two different OSes, and it's very hard or maybe impossible to do something like that, but all fine... I will find a way. By the way, I just recompiled one of the hello world software written in c to FBSD. I need some more information about FreeBSD's binary differences.
So I have been searching for differences between FBSD and Linux binary and already found these:

1)Linked libraries are different
2)ELF header different
..?


Note: Assume that architectures are the same(trying on x86_64)
Thanks...
 
some info,
forums.freebsd.org

Other - FreeBSD AMD64 ABI

Hello, background: I'm Assembly programmer for both Intel's x86 and AMD64 architectures, been programming for these architecture for more than 10 years in non-UNIX-like operating systems; to be more precise: Windows NT based operating systems. I was able to find the numeric kernel services...
forums.freebsd.org forums.freebsd.org
 
You don't compile binaries but we know what you meant. It isn't hard or impossible in every situation to compile C code to FreeBSD. Especially any helloworld.c code. The problems come up with ABI compatibility and targeted code.
 
C ABI is the same, everything about ELF objects is exactly the same, syscall conventions are different I believe.

fbsd_ said:
No, I'm not talking about Linux binary compatibility. I want to do something different. I know FreeBSD and Linux are two different OSes, and it's very hard or maybe impossible to do something like that, but all fine... I will find a way.
Click to expand...
I'm getting teenage angst vibes from this :)

fbsd_ said:
By the way, I just recompiled one of the hello world software written in c to FBSD.
Click to expand...
You did?
 
shkhln said:
C ABI is the same, everything about ELF objects is exactly the same, syscall conventions are different I believe.


I'm getting teenage angst vibes from this :)


You did?
Click to expand...
Hahah. It's hard to hide the angry teenager inside me. Don't mind it.
 
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