This is the mail archive of the
mailing list for the GDB project.
Re: [RFA] ppc-linux-nat.c AltiVec regs ptrace
On Wed, Feb 20, 2002 at 06:06:55PM -0500, Elena Zannoni wrote:
> Daniel Jacobowitz writes:
> > I'm confused.
> Yeah, you are not the only one.
> > On i386, glibc defines PTRACE_GETFPXREGS. On PowerPC, in current FSF
> > glibc, sys/ptrace.h does not define anything along these lines at all.
> OK, I have downloaded glibc 2.2.5, and sysdeps/unix/sysv/linux/sys/ptrace.h
> defines PTRACE_GETFPXREGS.
> Then on my system, I have /usr/include/sys/ptrace.h which also defines it.
> But I think I have an older version of glibc installed.
> What I am not understanding is where the installed file comes from, is
> it the same as sysdeps/unix/sysv/linux/sys/ptrace.h?
The way the glibc build process works is a mess. Every target has a
list of sysdep directories. The first matching file is installed. In
this case, it is sysdeps/unix/sysv/linux/powerpc/sys/ptrace.h. When
looking for a file in the glibc source, I recommend always getting a
list of all files by that name first.
> > If there are outstanding patches to glibc, which defines
> > PTRACE_GETFPXREGS on PowerPC, then they are still mutable. They should
> > be updated to a reasonable value.
> I think that rather than oustanding patches we may have older versions.
> I see that in glibc2.2.5 the file
> doesn't use the values 18 and 19.
> If I determine that the version of glibc I have used is obsolete, then
> I can clean that up. Let me have a look.
Hopefully I've clarified this a little. And you seem to have found the
file in question.
Daniel Jacobowitz Carnegie Mellon University
MontaVista Software Debian GNU/Linux Developer