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Re: [patch] Build arm-elf-gdb on mingw host
- From: Daniel Jacobowitz <drow at false dot org>
- To: Eli Zaretskii <eliz at gnu dot org>
- Cc: Dave Murphy <wintermute2k4 at ntlworld dot com>,gdb-patches at sources dot redhat dot com
- Date: Sun, 25 Sep 2005 23:59:37 -0400
- Subject: Re: [patch] Build arm-elf-gdb on mingw host
- References: <4337317B.email@example.com> <firstname.lastname@example.org>
On Mon, Sep 26, 2005 at 06:46:10AM +0300, Eli Zaretskii wrote:
> > Date: Mon, 26 Sep 2005 00:23:39 +0100
> > From: Dave Murphy <email@example.com>
> > When building the bfd/doc directory under mingw/msys chew.c converts
> > line endings to crlf. I've patched so the files are read as binary,
> > preventing this conversion.
> Why? What's wrong with having the output from chew have CRLF line
> endings on Windows?
Yeah, I'm wondering about this too.
> > SIGTRAP isn't defined in the MinGW headers, I patched remote-sim.c to
> > define this if it's not defined.
> I don't think this is a good idea. It is much better (and widely
> practiced) to #ifdef away portions of code that use SIGTRAP, like
> #ifdef SIGTRAP
> ... code that depends on SIGTRAP ...
In this case, unfortunately, it's a bit more complicated to fix. You
can find a similar workaround patch from Paul Brook in the archives,
and my discussion (with Mark?) about it. The gdb<->sim interface uses
"signals", meaning the host signal numbers. And without SIGTRAP we
can't step or breakpoint. Thus, a lot of files in sim already define
They ought to be converted to the relatively new "gdb/signals.h" header
in include/, but the simulators are also concerned with actual host
signals in places, so a simple search and replace isn't right either.
It's going to take a little investigation to fix this properly.