Re: [PATCH 1/4] 'catch syscall' feature -- Architecture-independent part

[Pedro Alves <pedro@codesourcery.com>]

On Wednesday 05 November 2008 19:08:49, Eli Zaretskii wrote:
> > From: Pedro Alves <pedro@codesourcery.com>
> > Date: Wed, 5 Nov 2008 18:56:26 +0000
> > Cc: bauerman@br.ibm.com,
> >  sergiodj@linux.vnet.ibm.com
> > 
> > What's wrong with "break ReadFile" ?
> 
> Does it work for you?  

...  it does.  It's a function exported from a regular dll, just like
all other functions exported from other dlls.  I can only infer that
you haven't gone through the trouble of trying it yourself.

> And if the breakpoint breaks, can you easily 
> see the arguments of the call?
> 

No, but that's not different from breaking on any other function
in any other system when you don't have debug info for it.
To solve this, the real solution is to make GDB make use
of MSFT's PDB debug info, not to somehow make up a new method
to extract arguments from plain regular code.

This is *no different* from breaking on the "read" function in libc.so
on linux, without debug info for libc.so.  Eventually the libc
'read' function calls the real 'read' syscall, just like on Windows.

-- 
Pedro Alves