mirror of
https://github.com/RGBCube/serenity
synced 2025-07-25 18:47:34 +00:00
Kernel: Make sure threads which don't do any syscalls are terminated
Steps to reproduce: $ cat loop.c int main() { for (;;); } $ gcc -o loop loop.c $ ./loop Terminating this process wasn't previously possible because we only checked whether the thread should be terminated on syscall exit.
This commit is contained in:
parent
c980a51776
commit
3c3a1726df
3 changed files with 20 additions and 0 deletions
|
@ -4,6 +4,7 @@
|
|||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*/
|
||||
|
||||
#include <AK/ScopeGuard.h>
|
||||
#include <Kernel/API/Syscall.h>
|
||||
#include <Kernel/Arch/x86/CPU.h>
|
||||
#include <Kernel/Panic.h>
|
||||
|
@ -129,6 +130,14 @@ NEVER_INLINE void syscall_handler(TrapFrame* trap)
|
|||
{
|
||||
auto& regs = *trap->regs;
|
||||
auto current_thread = Thread::current();
|
||||
{
|
||||
ScopedSpinLock lock(g_scheduler_lock);
|
||||
current_thread->set_may_die_immediately(false);
|
||||
}
|
||||
ScopeGuard reset_may_die_immediately = [¤t_thread] {
|
||||
ScopedSpinLock lock(g_scheduler_lock);
|
||||
current_thread->set_may_die_immediately(true);
|
||||
};
|
||||
VERIFY(current_thread->previous_mode() == Thread::PreviousMode::UserMode);
|
||||
auto& process = current_thread->process();
|
||||
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue