> >From what I understand, the following should print "Hello, world." on
> stdout. I stole the code from the Linux HOWTO, but I think it should
> work on FreeBSD as well. Instead, the call to write returns 9 (EBADF).
I disassembled FreeBSD programs (create a small C prog, compile, and use
objdump), and it looks more like this: (I haven't tested this yet, but it is definitely
stack based, not register based, the part which I haven't tested is if the placing
the int $0x80 behind a call is required)
pusl $len
pushl $Msg
pushl $1
mov $4,%eax
call _basicsyscall
addl $12,%esp
.
.
.
_basicsyscall: int $0x80
ret
> As a related question, can anyone point me to the source for the int
> 0x80 handler? I've looked all over but can't find it.
On the libc side?
It is very fragmented in several files using a lot of macro
code. If you wish I can look up the names for you (I did this some weeks ago)
I never searched for the kernel side. (the actual 0x80 handler)
Marco van de Voort ([EMAIL PROTECTED])
<http://www.stack.nl/~marcov/xtdlib.htm>
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