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Fix Crashes with GCC 15 #5088

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When building `WITH_PYTHON`, where a global list of modules is maintained, deleting a module also erases the entry in said global list.  This can lead to memory corruption if the global list is destructed before the module.
Using `on_shutdown()` instead means the module destructor is explicitly called before the global list can be destructed, preventing the issue.
Also add a comment to `Pass::~Pass()` to suggest the same for future passes that might try to use that (and see this commit in the blame if they need a reason why).
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Krystine Sherwin 2025-05-10 09:59:13 +12:00
parent c4af97c1c4
commit af75dce660
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2 changed files with 2 additions and 1 deletions
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passes/cmds/design.cc
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@ -28,7 +28,7 @@ std::vector<RTLIL::Design*> pushed_designs;
struct DesignPass : public Pass {
DesignPass() : Pass("design", "save, restore and reset current design") { }
~DesignPass() override {
void on_shutdown() override {
for (auto &it : saved_designs)
delete it.second;
saved_designs.clear();