This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1233014
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1233014
Title:
Use CFLAGS=-grecord-gcc-switches
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
Hi!
Tools, like systemtap, need to circumvent some bugs in GCC, notably in
the way it reports debugging data for highly-optimized programs.
Systemtap includes workarounds but they are only reliable when the
kernel is using some options. Therefore, systemtap needs to know with
which option GCC was invoked.
For example, LTS kernels for Precise are using GCC 4.6.3 Precise which
has a bug related to -mfentry and produce incorrect offsets for
debugging symbols (off by 5). Systemtap includes a workaround for this
but it can only be reliably detected if it knows that -mfentry flag
was requested.
This can be done by using CFLAGS=-grecord-gcc-switches. Please, use it
for all future release, even when the version of GCC used has no known
bug.
Thanks.
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