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[Bug translator/4915] imperfect prologue searching heuristics for inlined functions
- From: "fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 14 Aug 2007 17:22:32 -0000
- Subject: [Bug translator/4915] imperfect prologue searching heuristics for inlined functions
- References: <20070810201910.4915.wcohen@redhat.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From fche at redhat dot com 2007-08-14 17:22 -------
I'm seeing some debugging info errors for sys_open and sys_access on
2.6.9-55.0.2.EL[smp]. They don't fit quite into the current "trouble cases"
for the prologue searcher (resolve_prologue_endings), in that what seems
to be happening is that a small function without a prologue calls an inlined
friend that does have a real prologue. The gcc-emitted debugging info appears
to be valid (or at least plausible) for an int parameter, but a char* sibling
is invalid until the inlined prologue of the second function.
I don't know whether it's worth trying to improve the systemtap-side heuristics,
or beat on the old compiler. Or neither? Opinions please?
--
What |Removed |Added
----------------------------------------------------------------------------
Summary|Incorrect code for accessing|imperfect prologue searching
|function argument |heuristics for inlined
| |functions
http://sourceware.org/bugzilla/show_bug.cgi?id=4915
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