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Alex Bennee <kernel-hacker@bennee.com> writes: > By default we build our software with -O3 which brings in a host of > optimisations which make following code in GDB a pain. [...] > An alternate approach is to compile with -O3 but turn off specific > optimisations which make life tricky for gdb. [...] There is an increasing appreciation in gcc land for the need to debug fully optimized programs, which is manifesting itself with gradual improvements in the quality of debugging information gcc emits. For those cases where the data is outright missing or incorrect, you will get more sympathy for such bug reports than perhaps in the past. None of that may actually unravel inherent phenomena such as "funky execution order" or "compressed backtraces", but they should improve accurate visibility of those source-level constructs that survive into the binary stage. - FChE
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