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[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-0.9.9-95-g3d98899
- From: mark at sourceware dot org
- To: systemtap-cvs at sourceware dot org
- Date: 6 Aug 2009 08:56:24 -0000
- Subject: [SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-0.9.9-95-g3d98899
- Reply-to: systemtap at sourceware dot org
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commit 3d9889977397098d14c5be50f1dfef1c3eeb508f
Author: Mark Wielaard <mjw@redhat.com>
Date: Thu Aug 6 10:41:46 2009 +0200
PR10491 Don't assign to REG_IP if it isn't an lvalue (s390 and ia64).
To fixup REG_IP to show the correct value after a [ku]probe trap we
assigned the address of the actual instruction pointer of the probed
instruction. That doesn't work on architectures, s390 and ia64, where
REG_IP is not a simple lvalue. Just don't try to fixup the address in
those cases. If this isn't enough, the uprobe_stmt_num.exp testcase
will point this out.
* runtime/regs.h: Define REG_IP_LVALUE for x86_64, i386, powerpc64 and arm.
* tapsets.cxx (dwarf_derived_probe_group::emit_module_decls): Only fixup
REG_IP when REG_IP_LVALUE is defined.
(uprobe_derived_probe_group::emit_module_decls): Likewise.
(kprobe_derived_probe_group::emit_module_decls): Likewise.
-----------------------------------------------------------------------
Summary of changes:
runtime/regs.h | 5 +++++
tapsets.cxx | 30 ++++++++++++++++++++++++++++++
2 files changed, 35 insertions(+), 0 deletions(-)
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systemtap: system-wide probe/trace tool