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LibC: Mark atexit() entries as 'called' before calling them

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This guards as from recursing into an atexit callback if exit() is called
from within it.
This commit is contained in:
Itamar 2021-03-29 15:36:42 +03:00 • committed by Andreas Kling
parent deda7c8995
commit 9eaa6527f7
1 changed files with 1 additions and 1 deletions
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2
Userland/Libraries/LibC/cxxabi.cpp
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@ -101,10 +101,10 @@ void __cxa_finalize(void* dso_handle)
bool needs_calling = !exit_entry.has_been_called && (!dso_handle || dso_handle == exit_entry.dso_handle); bool needs_calling = !exit_entry.has_been_called && (!dso_handle || dso_handle == exit_entry.dso_handle);
if (needs_calling) { if (needs_calling) {
dbgln_if(GLOBAL_DTORS_DEBUG, "__cxa_finalize: calling entry[{}] {:p}({:p}) dso: {:p}", entry_index, exit_entry.method, exit_entry.parameter, exit_entry.dso_handle); dbgln_if(GLOBAL_DTORS_DEBUG, "__cxa_finalize: calling entry[{}] {:p}({:p}) dso: {:p}", entry_index, exit_entry.method, exit_entry.parameter, exit_entry.dso_handle);
exit_entry.method(exit_entry.parameter);
unlock_atexit_handlers(); unlock_atexit_handlers();
exit_entry.has_been_called = true; exit_entry.has_been_called = true;
lock_atexit_handlers(); lock_atexit_handlers();
exit_entry.method(exit_entry.parameter);
} }
} }
} }