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Kernel: Add support for profiling kmalloc()/kfree()

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Gunnar Beutner 2021-05-13 13:09:00 +02:00 • committed by Andreas Kling
parent 572bbf28cc
commit 277f333b2b
10 changed files with 84 additions and 2 deletions
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8
Kernel/Syscalls/execve.cpp
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@ -530,7 +530,13 @@ KResult Process::do_exec(NonnullRefPtr<FileDescription> main_program_description
set_dumpable(!executable_is_setid);
m_space = load_result.space.release_nonnull();
{
// We must disable global profiling (especially kfree tracing) here because
// we might otherwise end up walking the stack into the process' space that
// is about to be destroyed.
TemporaryChange global_profiling_disabler(g_profiling_all_threads, false);
m_space = load_result.space.release_nonnull();
}
MemoryManager::enter_space(*m_space);
auto signal_trampoline_region = m_space->allocate_region_with_vmobject(signal_trampoline_range.value(), g_signal_trampoline_region->vmobject(), 0, "Signal trampoline", PROT_READ | PROT_EXEC, true);