From: Steve Munroe <sjmunroe@us.ibm.com>
To: libc-hacker@sources.redhat.com
Cc: Paul Mackerras <pmac@au1.ibm.com>
Subject: Questions about VDSO
Date: Thu, 04 Nov 2004 22:11:00 -0000 [thread overview]
Message-ID: <OFA3D401F5.C8553C26-ON86256F42.00780720-86256F42.0079EC36@us.ibm.com> (raw)
I am (finally) starting to look at enabling the GLIBC side of VDSO for
PPC/PPC64 but have some questions about the details.
It looks like I need to define NEED_DL_SYSINFO in dl-sysdep.h to set up
the basic processing of AT_SYSINFO and AT_SYSINFO_EHDR. But looking at the
i386 and ia64 examples it is not obvious what is needed for the general
concept and what is specific to those platforms. For example I don't think
PPC needs USE_DL_SYSINFO, DL_SYSINFO_DEFAULT, or DL_SYSINFO_IMPLEMENTATION
because we are not changing the syscall mechanism for powerpc. Am I
missing something?
Also there does not seem to be any kernel_feature specific enable for
VDSO. So can I assume that a NEED_DL_SYSINFO GLIBC can run safely on a
none VDSO kernel?
Steven J. Munroe
Linux on Power Toolchain Architect
IBM Corporation, Linux Technology Center
next reply other threads:[~2004-11-04 22:11 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-04 22:11 Steve Munroe [this message]
2004-11-04 23:18 ` Roland McGrath
2004-11-05 16:13 ` Steve Munroe
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