Stacktraces with dwarf symbols #280
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added 4 commits
January 31, 2024 21:21
We want this to always be visible, so the log level must be the highest possible. Unfortunately, that's quite the hack around the existing API and how fatal behaves. The log API stopped scaling already a while ago and needs considerable refactoring to consider the various use-cases that emerged since it was first created on alpha versions of bemanitools.
Because we are using mingw, we can't just use window's dbghelp library as the symbols created are in dwarf format. Fortunately, the dwarfstack library already provides all the facilities to easily print very descriptive stacktraces, including function names, file names and line numbers, when dwarf symbols are available. This moves the incomplete exception handling portion from signal to a separate module as well to improve scoping.
Adjust inject to utilize the new feature. This also requires including the dwarfstack.dll in all distribution packages.
Expecting to improve debugability significantly. Stacktraces can be enhanced with function names, file names and line numbers when symbols are included in all exe and dll files. Furthermore, this also improves debugger usage as symbols can be imported to help navigate disassembly/decompiled code.
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Decided to start pushing changes of my on-going refactoring and development streak to a dedicated development branch. The blast radius of all these changes is very large and everything needs extensive testing once I am somewhat "done" with the main development work. Avoid disruptions on master to still allow pushing bugfixes and allow releases. |
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Split out from #278.
Introduces nice stacktraces using the dwarf symbols generated by mingw. The current implementation works but isn't optimal as it requires an additional library. Following up to this with making it optional and load it dynamically somehow.