This is the mail archive of the
systemtap@sourceware.org
mailing list for the systemtap project.
[Bug translator/2465] possible wrong function.entry address given by systemtap
- From: "guanglei at cn dot ibm dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 27 Apr 2006 02:38:13 -0000
- Subject: [Bug translator/2465] possible wrong function.entry address given by systemtap
- References: <20060316093856.2465.guanglei@cn.ibm.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From guanglei at cn dot ibm dot com 2006-04-27 02:38 -------
(In reply to comment #5)
> Can you check whether the fix from last week corrected your particular problem?
Pls see comment #13 of bug 2453
http://sourceware.org/bugzilla/show_bug.cgi?id=2453#c13
I also tried on 2.6.15.4 again with the latest code from CVS, it also works for
me :-) :
the file generead by -p3:
...
static struct kprobe dwarf_kprobe_0[1]= {
{.addr= (void *) 0xc0000000001f015c}
};
...
objdump of kernel:
c0000000001f015c <.elv_dequeue_request>:
c0000000001f015c: e8 04 00 00 ld r0,0(r4)
c0000000001f0160: 7c 00 22 78 xor r0,r0,r4
c0000000001f0164: 21 20 00 00 subfic r9,r0,0
c0000000001f0168: 7c 09 01 14 adde r0,r9,r0
c0000000001f016c: 0b 00 00 00 tdnei r0,0
c0000000001f0170: e9 24 00 00 ld r9,0(r4)
stap -vvv output:
/home/root> stap a.stp -vvv
Created temporary directory "/tmp/stapxIXO09"
Searched '/usr/local/share/systemtap/tapset/2.6.15.4/ppc64/*.stp', match count 0
Searched '/usr/local/share/systemtap/tapset/2.6.15.4/*.stp', match count 0
Searched '/usr/local/share/systemtap/tapset/2.6.15/ppc64/*.stp', match count 0
Searched '/usr/local/share/systemtap/tapset/2.6.15/*.stp', match count 0
Searched '/usr/local/share/systemtap/tapset/2.6/ppc64/*.stp', match count 0
Searched '/usr/local/share/systemtap/tapset/2.6/*.stp', match count 0
Searched '/usr/local/share/systemtap/tapset/ppc64/*.stp', match count 1
Searched '/usr/local/share/systemtap/tapset/*.stp', match count 15
Pass 1: parsed user script and 16 library script(s) in 230usr/0sys/335real ms.
parsed 'elv_dequeue_request' -> func 'elv_dequeue_request'
pattern 'kernel' matches module 'kernel'
focused on module 'kernel' = [c000000000000000-c0000000007b66a8, bias 0]
pattern 'elv_dequeue_request' matches function 'elv_dequeue_request'
selected function elv_dequeue_request
prologue searching function 'elv_dequeue_request'
0xc0000000001f015c-0xc0000000001f01b4@block/elevator.c:513
checking line record 0xc0000000001f015c@include/linux/list.h:255
prologue found function 'elv_dequeue_request' (naked) = 0xc0000000001f015c
probe elv_dequeue_request@block/elevator.c:513 pc=0xc0000000001f015c
pattern 'kernel' matches module 'kernel'
Eliding unused function warn
Eliding unused function exit
Eliding unused function error
Pass 2: analyzed script: 1 probe(s), 1 function(s), 0 global(s) in
440usr/140sys/1071real ms.
Probe #0 locks nothing
Running grep " [tT] " /proc/kallsyms | sort -k 1,8 -s -o
/tmp/stapxIXO09/symbols.sorted
Pass 3: translated to C into "/tmp/stapxIXO09/stap_3582.c" in
140usr/100sys/261real ms.
Running make -C "/lib/modules/2.6.15.4/build" M="/tmp/stapxIXO09" modules V=1
make: Entering directory `/usr/src/linux-2.6.15.4'
mkdir -p /tmp/stapxIXO09/.tmp_versions
make -f scripts/Makefile.build obj=/tmp/stapxIXO09
gcc -m64 -Wp,-MD,/tmp/stapxIXO09/.stap_3582.o.d -nostdinc -isystem
/usr/lib/gcc/ppc64-redhat-linux/3.4.5/include -D__KERNEL__ -Iinclude -include
include/linux/autoconf.h -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs
-fno-strict-aliasing -fno-common -ffreestanding -Os -fomit-frame-pointer -g
-msoft-float -pipe -mminimal-toc -mtraceback=none -mcall-aixdesc -mtune=power4
-mno-altivec -funit-at-a-time -mstring -Wa,-maltivec
-Wdeclaration-after-statement -Wno-unused
-I"/usr/local/share/systemtap/runtime" -DMODULE -DKBUILD_BASENAME=stap_3582
-DKBUILD_MODNAME=stap_3582 -c -o /tmp/stapxIXO09/.tmp_stap_3582.o
/tmp/stapxIXO09/stap_3582.c
Building modules, stage 2.
make -rR -f /usr/src/linux-2.6.15.4/scripts/Makefile.modpost
scripts/mod/modpost -m -a -i /usr/src/linux-2.6.15.4/Module.symvers vmlinux
/tmp/stapxIXO09/stap_3582.o
gcc -m64 -Wp,-MD,/tmp/stapxIXO09/.stap_3582.mod.o.d -nostdinc -isystem
/usr/lib/gcc/ppc64-redhat-linux/3.4.5/include -D__KERNEL__ -Iinclude -include
include/linux/autoconf.h -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs
-fno-strict-aliasing -fno-common -ffreestanding -Os -fomit-frame-pointer -g
-msoft-float -pipe -mminimal-toc -mtraceback=none -mcall-aixdesc -mtune=power4
-mno-altivec -funit-at-a-time -mstring -Wa,-maltivec
-Wdeclaration-after-statement -DKBUILD_BASENAME=stap_3582
-DKBUILD_MODNAME=stap_3582 -DMODULE -c -o /tmp/stapxIXO09/stap_3582.mod.o
/tmp/stapxIXO09/stap_3582.mod.c
ld -m elf64ppc -r -o /tmp/stapxIXO09/stap_3582.ko /tmp/stapxIXO09/stap_3582.o
/tmp/stapxIXO09/stap_3582.mod.o
make: Leaving directory `/usr/src/linux-2.6.15.4'
Pass 4: compiled C into "stap_3582.ko" in 3640usr/310sys/8361real ms.
Pass 5: starting run.
Running sudo /usr/local/libexec/systemtap/stpd -r -u root -d 3582
/tmp/stapxIXO09/stap_3582.ko
here
here
here
--
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution| |FIXED
http://sourceware.org/bugzilla/show_bug.cgi?id=2465
------- You are receiving this mail because: -------
You are the assignee for the bug, or are watching the assignee.