[Bug kprobes/2408] [RHEL4 U4] Backport Kprobes fixes from mainline

["anil dot s dot keshavamurthy at intel dot com" <sourceware-bugzilla at sourceware dot org>]

------- Additional Comments From anil dot s dot keshavamurthy at intel dot com  2006-03-03 19:42 -------
Created an attachment (id=900)
 --> (http://sourceware.org/bugzilla/attachment.cgi?id=900&action=view)
Single patch to address all the Kprobes backport issues

Changes since previous attachment are:

1) Added the below check in kprobes exception handler code for all
arch.(suggested by Ananth/Yanmin)
 if (args->regs && user_mode(args->regs))
     return ret;
2) Fixed __kprobes macro which is not required for RHEL4(Bibo)
3) Added return 0; from arch_prepare_kprobe (suggested by Josh)
4)Back ported one more Fix of Ananth i,e Fix deadlock in function return probes

5) Removed trailing white space

Pending...Waiting for Prasanna's kprobe fault handler code to be merged.

Change summary:
------------------
 arch/i386/kernel/kprobes.c    |   50 ++++---
 arch/i386/kernel/process.c    |    8 -
 arch/ia64/kernel/jprobes.S    |   27 ++++
 arch/ia64/kernel/kprobes.c    |   75 ++++++++++-
 arch/ia64/kernel/process.c    |    7 -
 arch/ppc64/kernel/kprobes.c   |   28 +++-
 arch/ppc64/kernel/process.c   |    7 -
 arch/sparc64/kernel/kprobes.c |    4
 arch/x86_64/kernel/kprobes.c  |  133 ++------------------
 arch/x86_64/kernel/process.c  |    8 -
 include/asm-i386/kprobes.h    |   14 --
 include/asm-ia64/kprobes.h    |   23 +--
 include/asm-ppc64/kprobes.h   |   12 -
 include/asm-sparc64/kprobes.h |    9 -
 include/asm-x86_64/kprobes.h  |    6
 include/linux/kprobes.h       |    8 -
 include/linux/list.h	       |   21 +++
 kernel/kprobes.c	       |  274
++++++++++++++++++++++++++++++++----------
 kernel/module.c	       |    3
 kernel/sched.c 	       |    9 +
 
20 files changed, 431 insertions(+), 295 deletions(-)

TBD before posting the patch to RedHat:
------------------------------------
1) Delete changes related to sparc64.
2) Include Prasanna's final Kprobes fault handler code.
3) Refresh the patch against latest RH kernel version 2.6.9-34?

Thanks,
Anil


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #897 is|0                           |1
           obsolete|                            |


http://sourceware.org/bugzilla/show_bug.cgi?id=2408

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