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From: Mark Kettenis <mark.kettenis@xs4all.nl>
To: eliz@gnu.org
Cc: gdb@sourceware.org
Subject: Re: Calling __stdcall functions in the inferior
Date: Fri, 12 Oct 2012 09:54:00 -0000	[thread overview]
Message-ID: <201210120953.q9C9rqfu020865@glazunov.sibelius.xs4all.nl> (raw)
In-Reply-To: <83a9vs89r9.fsf@gnu.org> (message from Eli Zaretskii on Fri, 12	Oct 2012 08:50:02 +0200)

> Date: Fri, 12 Oct 2012 08:50:02 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> 
> Is there a way to call __stdcall functions in the inferior from GDB,
> while debugging a C program?  The case in point is GetLastError, but
> any other function from the Windows API has this problem.

Probably not.  We only implement the System V and Darwin calling
conventions for i386.

I'm not familliar with the Windows world (and don't really have a
desire to become familliar).  But I assume "normal" (non-__stdcall)
functions use the System V calling conventions?  In that case there
are two things that will need to happen:

* You'll need to implement Windows-specific push_dummy_call and/or
  push_dummy_code gdbarch methods for calling __stdcall functions.

* You'll need to figure out a way to distinguish __stdcall functions
  from "normal" functions.

If you decide to have a go at this, please create a new
i386-windows-tdep.c file to put all the Windows-specific i386 code.


  reply	other threads:[~2012-10-12  9:54 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-12  6:50 Eli Zaretskii
2012-10-12  9:54 ` Mark Kettenis [this message]
2012-10-12 10:20   ` John Gilmore
2012-10-12 10:44     ` Eli Zaretskii
2012-10-12 10:42   ` Eli Zaretskii
2012-10-12 11:28     ` Pedro Alves
2012-10-12 13:26       ` Eli Zaretskii
2012-10-15 13:17         ` Pierre Muller
2012-10-12 11:45     ` Mark Kettenis
2012-10-12 13:25       ` Eli Zaretskii

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