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[Bug runtime/17469] New: support kernel unwinding based on .eh_frame rather than .debug_frame data
- From: "fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Wed, 08 Oct 2014 18:30:56 +0000
- Subject: [Bug runtime/17469] New: support kernel unwinding based on .eh_frame rather than .debug_frame data
- Auto-submitted: auto-generated
https://sourceware.org/bugzilla/show_bug.cgi?id=17469
Bug ID: 17469
Summary: support kernel unwinding based on .eh_frame rather
than .debug_frame data
Product: systemtap
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: runtime
Assignee: systemtap at sourceware dot org
Reporter: fche at redhat dot com
Some kernel images come with .eh_frame vs. .debug_frame unwind data.
(The latter is popular with CFLAGS+=-fno-async-unwind-tables
machines such as x86.) The stap runtime is reportedly unable to
handle the former (for the kernel; for userspace backtracing it
is reportedly fine). We should make sure the runtime accepts
both eh* and debug* for both kernel & userspace.
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