[Bug runtime/5947] New: make systemtap 0.6.2/0.131 work on F8 2.6.21.7-2.fc8xen

[Bug runtime/5947] New: make systemtap 0.6.2/0.131 work on F8 2.6.21.7-2.fc8xen

[eteo at redhat dot com]

There were numerous warnings treated as errors when using systemtap and kernel
of the following versions:

fluffy: ~/code/systemtap$ stap -V
SystemTap translator/driver (version 0.6.2/0.131 built 2008-03-16)
Copyright (C) 2005-2008 Red Hat, Inc. and others
This is free software; see the source for copying conditions.
fluffy: ~/code/systemtap$ uname -rm
2.6.21.7-2.fc8xen x86_64

The following commands were executed:
stap -ve 'probe begin { printf("hello world\n") }' -v &>log.txt
stap -DSTAPCONF_INODE_PRIVATE -ve 'probe begin { printf("hello world\n") }' -v
&>log2.txt

The errors are saved in log.txt and log2.txt.

Thanks,
Eugene

-- 
           Summary: make systemtap 0.6.2/0.131 work on F8 2.6.21.7-2.fc8xen
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: runtime
        AssignedTo: systemtap at sources dot redhat dot com
        ReportedBy: eteo at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=5947

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug runtime/5947] make systemtap 0.6.2/0.131 work on F8 2.6.21.7-2.fc8xen

[eteo at redhat dot com]

------- Additional Comments From eteo at redhat dot com  2008-03-17 03:28 -------
Created an attachment (id=2329)
 --> (http://sourceware.org/bugzilla/attachment.cgi?id=2329&action=view)
stap -ve 'probe begin { printf("hello world\n") }' -v &>log.txt


-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=5947

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug runtime/5947] make systemtap 0.6.2/0.131 work on F8 2.6.21.7-2.fc8xen

[eteo at redhat dot com]

------- Additional Comments From eteo at redhat dot com  2008-03-17 03:29 -------
Created an attachment (id=2330)
 --> (http://sourceware.org/bugzilla/attachment.cgi?id=2330&action=view)
stap -DSTAPCONF_INODE_PRIVATE -ve 'probe begin { printf("hello world\n") }' -v
&>log2.txt


-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=5947

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug runtime/5947] make systemtap 0.6.2/0.131 work on F8 2.6.21.7-2.fc8xen

[fche at redhat dot com]

------- Additional Comments From fche at redhat dot com  2008-03-17 13:40 -------
The operative gcc warning is "warning: pointer of type 'void *' used in
arithmetic", which is a consequence of -Wpointer-arith.  I don't know
why this warning is turned on in your build.

Regardless, our own code should not calculate with uncast void*'s, which
appears to be gnu-c-ism, but rather cast to char*'s first.

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=5947

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug runtime/5947] make systemtap 0.6.2/0.131 work on F8 2.6.21.7-2.fc8xen

[eteo at redhat dot com]

------- Additional Comments From eteo at redhat dot com  2008-03-17 14:00 -------
Looks like -Wpointer-arith is from /lib/modules/2.6.21.7-2.fc8xen/build/Makefile:

 315 CFLAGS          := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 316                    -fno-strict-aliasing -fno-common \
 317                    -Werror-implicit-function-declaration -Wpointer-arith

Removing -Wpointer-arith, and running scripts, will trigger the following error:

stap_872252efaf2a43c17f3b0b219f69fcf2_15559: Unknown symbol tsc_khz


-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=5947

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug runtime/5947] make systemtap 0.6.2/0.131 work on F8 2.6.21.7-2.fc8xen

[eteo at redhat dot com]

------- Additional Comments From eteo at redhat dot com  2008-03-17 14:14 -------
$ uname -rm
2.6.21.7-2.fc8xen x86_64

tsc_khz is not exported.

$ cat runtime/autoconf-tsc-khz.c 
#include <linux/version.h>
#include <asm/tsc.h>

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)) && defined(__i386__) <---
removing the arch test will work. x64 is not tested, and so it assumes that
tsc_khz is exported when it's not.

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=5947

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug runtime/5947] make systemtap 0.6.2/0.131 work on F8 2.6.21.7-2.fc8xen

[eteo at redhat dot com]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED


http://sourceware.org/bugzilla/show_bug.cgi?id=5947

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.

[Bug runtime/5947] make systemtap 0.6.2/0.131 work on F8 2.6.21.7-2.fc8xen

[eteo at redhat dot com]

------- Additional Comments From eteo at redhat dot com  2008-03-17 15:08 -------
runtime/autoconf* change committed:
http://sources.redhat.com/ml/systemtap-cvs/2008-q1/msg00202.html

-Wpointer-arith in kernel-xen reported:
https://bugzilla.redhat.com/show_bug.cgi?id=437807

Thanks,
Eugene

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|systemtap at sources dot    |eteo at redhat dot com
                   |redhat dot com              |


http://sourceware.org/bugzilla/show_bug.cgi?id=5947

------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.