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Peter Hutterer authored
Let's use something that specializes in that task and does a better job of it than whatever we'll come up with. Due to how it's implemented the stacktrace will always show waitpid() as frame 0 now but we can live with that. gstack prints to stdout but litest_log() uses stderr, so we cannot just call system(), we have do do the pipe/fork/exec/waitpid/read dance. We could use that to filter the #0 frame showing waidpid() from gstack but meh. This drops the libunwind and addr2line dependency and replaces it with gstack instead. Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
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