Bug#928240: etw: Segmentation fault at start

[Steinar H. Gunderson]

On Tue, Apr 30, 2019 at 11:23:52PM +0100, Simon McVittie wrote:
>> On a quick analysis: It appears that etw tries to find its own path by
>> opening /proc/self/maps (code is in etw/prefix.c), looking for an executable
>> mapping (r-xp) that contains the string "", and then looking at the path.
> This seems unnecessarily complicated? /proc/self/maps is Linux-specific,
> and if relying on Linux-specific things is acceptable, then
> evaluating the symlink /proc/self/exe seems a lot easier. (See
> e.g. Sys_FindExecutableName() in darkplaces.)

Yes; it seems to be written by someone whose primary experience was with
Windows, given that it talks about LINUX and not Linux. :-)

However, given that we are in deep freeze, you probably want the smallest
possible fix for buster.

/* Steinar */
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