Kenneth Culver writes:
 > >  > Basically, linux_mmap2 takes 6 args, and this looks here like only 5 args are
 > >  > making it in... I checked this because the sixth argument to linux_mmap2() in
 > >  > truss was showing 0x6, but when I printed out that arg from the kernel, it
 > >  > was showing 0x0. Am I correct here?
 > >  >
 > >  > Ken
 > >
 > > Yes.  According to http://john.fremlin.de/linux/asm/, linux used to
 > > parse only 5 args but now it parses six.  Try adding:
 > >      args[5] = tf->tf_ebp;
 > >
 > I don't think that arg is there:
 > 
 > Apr 23 10:36:13 ken /kernel: tf->tf_ebp = -1077938040
 > 
 > Ken

My guess is that we're not doing something we should be doing in
int0x80_syscall in order to get that last arg.  But I do not have
enough x86 knowledge to understand how the trapframe is constructed,
so I cannot tell what needs to be done.

Perhaps somebody with more x86 fu can help.

Sorry,

Drew

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