feat: kernel: stability improvements on the scheduler and AMD64 HAL.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

1 files changed, 27 insertions, 15 deletions

diff --git a/src/kernel/HALKit/AMD64/HalCoreInterruptHandler.cc b/src/kernel/HALKit/AMD64/HalCoreInterruptHandler.cc
index 14ec5f60..040f5daa 100644
--- a/src/kernel/HALKit/AMD64/HalCoreInterruptHandler.cc
+++ b/src/kernel/HALKit/AMD64/HalCoreInterruptHandler.cc
@@ -31,26 +31,32 @@ static void hal_idt_send_eoi(UInt8 vector) {
 /// @param rsp
 EXTERN_C Kernel::Void idt_handle_gpf(Kernel::UIntPtr rsp) {
   auto process = Kernel::UserProcessScheduler::The().TheCurrentProcess();
-  process.Crash();
+
+  if (process) process.Crash();
 
   hal_idt_send_eoi(13);
 
-  process.Signal.SignalArg = rsp;
-  process.Signal.SignalID  = SIGKILL;
-  process.Signal.Status    = process.Status;
+  if (process) {
+    process.Signal.SignalArg = rsp;
+    process.Signal.SignalID  = SIGKILL;
+    process.Signal.Status    = process.Status;
+  }
 }
 
 /// @brief Handle page fault.
 /// @param rsp
 EXTERN_C void idt_handle_pf(Kernel::UIntPtr rsp) {
   auto process = Kernel::UserProcessScheduler::The().TheCurrentProcess();
-  process.Crash();
+
+  if (process) process.Crash();
 
   hal_idt_send_eoi(14);
 
-  process.Signal.SignalArg = rsp;
-  process.Signal.SignalID  = SIGKILL;
-  process.Signal.Status    = process.Status;
+  if (process) {
+    process.Signal.SignalArg = rsp;
+    process.Signal.SignalID  = SIGKILL;
+    process.Signal.Status    = process.Status;
+  }
 }
 
 /// @brief Handle scheduler interrupt.
@@ -73,21 +79,24 @@ EXTERN_C void idt_handle_scheduler(Kernel::UIntPtr rsp) {
 /// @param rsp
 EXTERN_C void idt_handle_math(Kernel::UIntPtr rsp) {
   auto process = Kernel::UserProcessScheduler::The().TheCurrentProcess();
-  process.Crash();
+
+  if (process) process.Crash();
 
   hal_idt_send_eoi(8);
 
-  process.Signal.SignalArg = rsp;
-  process.Signal.SignalID  = sig_generate_unique<SIGKILL>();
-  ;
-  process.Signal.Status = process.Status;
+  if (process) {
+    process.Signal.SignalArg = rsp;
+    process.Signal.SignalID  = sig_generate_unique<SIGKILL>();
+    process.Signal.Status    = process.Status;
+  }
 }
 
 /// @brief Handle any generic fault.
 /// @param rsp
 EXTERN_C void idt_handle_generic(Kernel::UIntPtr rsp) {
   auto process = Kernel::UserProcessScheduler::The().TheCurrentProcess();
-  process.Crash();
+
+  if (process) process.Crash();
 
   hal_idt_send_eoi(30);
 
@@ -104,6 +113,8 @@ EXTERN_C void idt_handle_generic(Kernel::UIntPtr rsp) {
 EXTERN_C Kernel::Void idt_handle_breakpoint(Kernel::UIntPtr rip) {
   auto process = Kernel::UserProcessScheduler::The().TheCurrentProcess();
 
+  if (process) process.Crash();
+
   hal_idt_send_eoi(3);
 
   process.Signal.SignalArg = rip;
@@ -118,7 +129,8 @@ EXTERN_C Kernel::Void idt_handle_breakpoint(Kernel::UIntPtr rip) {
 /// @param rsp
 EXTERN_C void idt_handle_ud(Kernel::UIntPtr rsp) {
   auto process = Kernel::UserProcessScheduler::The().TheCurrentProcess();
-  process.Crash();
+
+  if (process) process.Crash();
 
   hal_idt_send_eoi(6);