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[Bug testsuite/10231] Systemtap variable references fail on custom kernels built on RHEL 5.3 on ppc64
- From: "roland at gnu dot org" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 16 Jun 2009 00:07:08 -0000
- Subject: [Bug testsuite/10231] Systemtap variable references fail on custom kernels built on RHEL 5.3 on ppc64
- References: <20090603083354.10231.prerna@linux.vnet.ibm.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From roland at gnu dot org 2009-06-16 00:07 -------
Blame GCC. The location list's first defined range is at .do_fork+0x48, but the
PC of interest is .do_fork+0 (the entry point).
Relevant snippets:
[643eda] subprogram
sibling [6446e5]
external
name "do_fork"
decl_file 1
decl_line 1347
prototyped
type [630f4a]
low_pc 0xc000000000082ad0 <.do_fork>
high_pc 0xc000000000082f14 <.get_task_mm>
frame_base location list [ c71f5]
[643f00] formal_parameter
name "clone_flags"
decl_file 1
decl_line 1341
type [630ecd]
location location list [ c7242]
[ c7242] 0xc000000000082b18 <.do_fork+0x48>..0xc000000000082b38 <.do_fork+0x68>
[ 0] reg3
0xc000000000082b38 <.do_fork+0x68>..0xc000000000082f14 <.get_task_mm>
[ 0] reg26
--
http://sourceware.org/bugzilla/show_bug.cgi?id=10231
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