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Re: [PATCH] Take 3 vDSO patch for ppc/ppc64
- From: Benjamin Herrenschmidt <benh at kernel dot crashing dot org>
- To: Tom Gall <tom_gall at vnet dot ibm dot com>
- Cc: libc-alpha at sources dot redhat dot com, munroesj at us dot ibm dot com, decimal at us dot ibm dot com
- Date: Thu, 10 Nov 2005 18:29:17 +1100
- Subject: Re: [PATCH] Take 3 vDSO patch for ppc/ppc64
- References: <Pine.LNX.4.64.0511031913010.13006@pacifica>
On Thu, 2005-11-03 at 19:17 -0600, Tom Gall wrote:
> Greetings,
>
> New this time is just some formatting cleanup to make sure it's compliant
> with gnu style. Hopefully a step in the right direction.....
Did I miss something ? I can't find where NEED_DL_SYSINFO_DSO is defined
for powerpc ... This is necessary afaik, for the vDSO symbols to be
"found" by glibc.
In fact, this should have been done a long time ago (all my applogies if
it's there and I just missed it) since that's the only way that I know
for gcc stackframe unwinder to work properly with any recent kernel that
puts the signal trampolines in the vDSO... it needs to get to the DWARF
infos and I've been explained that the way it got there was via glibc
getting the vDSO symbols in.
Ben.