IMP: PosixKit, to communicate with pureDarwin correctly.

IMP: Breakpoint interrupt has been implemented.
IMP: Interrupts handlers have been improved for AMD64 HAL.

3 files changed, 105 insertions, 17 deletions

diff --git a/dev/ZKAKit/HALKit/AMD64/HalCoreInterruptHandlerAMD64.cc b/dev/ZKAKit/HALKit/AMD64/HalCoreInterruptHandlerAMD64.cc
index f6956793..149f2391 100644
--- a/dev/ZKAKit/HALKit/AMD64/HalCoreInterruptHandlerAMD64.cc
+++ b/dev/ZKAKit/HALKit/AMD64/HalCoreInterruptHandlerAMD64.cc
@@ -7,6 +7,7 @@
 #include <ArchKit/ArchKit.h>
 #include <KernelKit/UserProcessScheduler.h>
 #include <NewKit/KString.h>
+#include <PosixKit/Signals.h>
 
 /// @brief Handle GPF fault.
 /// @param rsp
@@ -21,13 +22,26 @@ EXTERN_C void idt_handle_gpf(Kernel::UIntPtr rsp)
 EXTERN_C void idt_handle_pf(Kernel::UIntPtr rsp)
 {
 	kcout << "Kernel: Page Fault.\r";
-	Kernel::UserProcessScheduler::The().GetCurrentProcess().Leak().Crash();
+
+	kcout << "Kernel: SIGKILL set.\r";
+
+	auto process = Kernel::UserProcessScheduler::The().GetCurrentProcess();
+
+	process.Leak().ProcessSignal.SignalIP = 0UL;
+	process.Leak().ProcessSignal.SignalID = SIGKILL;
+	process.Leak().ProcessSignal.PreviousStatus = process.Leak().Status;
+
+	kcout << "Kernel: PRCFROZE status set..\r";
+
+	process.Leak().Status = Kernel::ProcessStatusKind::kFrozen;
+
+	process.Leak().Crash();
 }
 
 /// @brief Handle scheduler interrupt.
 EXTERN_C void idt_handle_scheduler(Kernel::UIntPtr rsp)
 {
-	kcout << "Kernel: IRQ0.\r";
+	kcout << "Kernel: Timer IRQ (Scheduler Notification).\r";
 	Kernel::UserProcessHelper::StartScheduling();
 }
 
@@ -35,16 +49,56 @@ EXTERN_C void idt_handle_scheduler(Kernel::UIntPtr rsp)
 /// @param rsp
 EXTERN_C void idt_handle_math(Kernel::UIntPtr rsp)
 {
-	kcout << "Kernel: Math.\r";
-	Kernel::UserProcessScheduler::The().GetCurrentProcess().Leak().Crash();
+	kcout << "Kernel: Math error (division by zero?).\r";
+
+	auto process = Kernel::UserProcessScheduler::The().GetCurrentProcess();
+
+	process.Leak().ProcessSignal.SignalIP = 0UL;
+	process.Leak().ProcessSignal.SignalID = SIGKILL;
+	process.Leak().ProcessSignal.PreviousStatus = process.Leak().Status;
+
+	kcout << "Kernel: PRCFROZE status set..\r";
+
+	process.Leak().Status = Kernel::ProcessStatusKind::kFrozen;
+
+	process.Leak().Crash();
 }
 
 /// @brief Handle any generic fault.
 /// @param rsp
 EXTERN_C void idt_handle_generic(Kernel::UIntPtr rsp)
 {
-	kcout << "Kernel: Generic Fault.\r";
-	Kernel::UserProcessScheduler::The().GetCurrentProcess().Leak().Crash();
+	kcout << "Kernel: Generic Process Fault.\r";
+
+	auto process = Kernel::UserProcessScheduler::The().GetCurrentProcess();
+
+	process.Leak().ProcessSignal.SignalIP = 0UL;
+	process.Leak().ProcessSignal.SignalID = SIGKILL;
+	process.Leak().ProcessSignal.PreviousStatus = process.Leak().Status;
+
+	kcout << "Kernel: PRCFROZE status set..\r";
+
+	process.Leak().Status = Kernel::ProcessStatusKind::kFrozen;
+
+	process.Leak().Crash();
+}
+
+EXTERN_C Kernel::Void idt_handle_breakpoint(Kernel::UIntPtr rip)
+{
+	auto process = Kernel::UserProcessScheduler::The().GetCurrentProcess();
+
+	kcout << "Kernel: Process RIP: " << Kernel::number(rip) << endl;
+	kcout << "Kernel: Process Name: " << process.Leak().Name << endl;
+
+	kcout << "Kernel: SIGTRAP set.\r";
+
+	process.Leak().ProcessSignal.SignalIP = rip;
+	process.Leak().ProcessSignal.SignalID = SIGTRAP;
+	process.Leak().ProcessSignal.PreviousStatus = process.Leak().Status;
+
+	kcout << "Kernel: PRCFROZE status set..\r";
+
+	process.Leak().Status = Kernel::ProcessStatusKind::kFrozen;
 }
 
 /// @brief Handle #UD fault.
@@ -52,7 +106,18 @@ EXTERN_C void idt_handle_generic(Kernel::UIntPtr rsp)
 EXTERN_C void idt_handle_ud(Kernel::UIntPtr rsp)
 {
 	kcout << "Kernel: Undefined Opcode.\r";
-	Kernel::UserProcessScheduler::The().GetCurrentProcess().Leak().Crash();
+
+	auto process = Kernel::UserProcessScheduler::The().GetCurrentProcess();
+
+	process.Leak().ProcessSignal.SignalIP = 0UL;
+	process.Leak().ProcessSignal.SignalID = SIGKILL;
+	process.Leak().ProcessSignal.PreviousStatus = process.Leak().Status;
+
+	kcout << "Kernel: PRCFROZE status set..\r";
+
+	process.Leak().Status = Kernel::ProcessStatusKind::kFrozen;
+
+	process.Leak().Crash();
 }
 
 /// @brief Enter syscall from assembly.
@@ -91,7 +156,7 @@ EXTERN_C Kernel::Void hal_kernel_call_enter(Kernel::UIntPtr rcx_kerncall_index,
 {
 	if (rcx_kerncall_index < kKerncalls.Count())
 	{
-		kcout << "kerncall: Enter Kcall.\r";
+		kcout << "kerncall: Enter Kernel Call List.\r";
 
 		if (kKerncalls[rcx_kerncall_index].fHooked)
 		{
@@ -101,14 +166,14 @@ EXTERN_C Kernel::Void hal_kernel_call_enter(Kernel::UIntPtr rcx_kerncall_index,
 			}
 			else
 			{
-				kcout << "kerncall: syscall isn't valid at all! (is nullptr)\r";
+				kcout << "kerncall: Kernel call isn't valid at all! (is nullptr)\r";
 			}
 		}
 		else
 		{
-			kcout << "kerncall: syscall isn't hooked at all! (is set to false)\r";
+			kcout << "kerncall: Kernel call isn't hooked at all! (is set to false)\r";
 		}
 
-		kcout << "kerncall: Exit Kcall.\r";
+		kcout << "kerncall: Exit Kernel Calls.\r";
 	}
 }
diff --git a/dev/ZKAKit/HALKit/AMD64/HalInterruptAPI.asm b/dev/ZKAKit/HALKit/AMD64/HalInterruptAPI.asm
index 9121edb9..293dafde 100644
--- a/dev/ZKAKit/HALKit/AMD64/HalInterruptAPI.asm
+++ b/dev/ZKAKit/HALKit/AMD64/HalInterruptAPI.asm
@@ -50,15 +50,42 @@ extern idt_handle_pf
 extern ke_io_write
 extern idt_handle_ud
 extern idt_handle_generic
+extern idt_handle_breakpoint
 
 section .text
 
 IntNormal 0
 IntNormal 1
-
 IntNormal 2
 
-IntNormal 3
+section .data
+
+__ZKA_INT_3_GET_RIP:
+    dq 0
+__ZKA_INT_3_GET_RIP_END:
+
+section .text
+
+;; @brief Triggers a breakpoint and freeze the process. RIP is also fetched.
+__ZKA_INT_3:
+    cli
+
+    mov al, 0x20
+    out 0x20, al
+    out 0xA0, al
+
+    push rax
+    mov rax, idt_handle_breakpoint
+
+    lea rcx, [rel __ZKA_INT_3_GET_RIP]
+    mov [rcx], rcx
+
+    call rax
+    pop rax
+
+    sti
+    o64 iret
+
 IntNormal 4
 IntNormal 5
 
diff --git a/dev/ZKAKit/HALKit/AMD64/Storage/AHCI-DMA.cc b/dev/ZKAKit/HALKit/AMD64/Storage/AHCI-DMA.cc
index 8ac97a14..dd9a07b2 100644
--- a/dev/ZKAKit/HALKit/AMD64/Storage/AHCI-DMA.cc
+++ b/dev/ZKAKit/HALKit/AMD64/Storage/AHCI-DMA.cc
@@ -242,8 +242,6 @@ Kernel::Void drv_std_read(Kernel::UInt64 lba, Kernel::Char* buffer, Kernel::Size
 		{
 			return; // Error in task file
 		}
-
-		kcout << Kernel::number((kAhciPort->Ci & 1)) << endl;
 	}
 }
 
@@ -311,8 +309,6 @@ Kernel::Void drv_std_write(Kernel::UInt64 lba, Kernel::Char* buffer, Kernel::Siz
 			Kernel::ke_stop(RUNTIME_CHECK_UNEXCPECTED);
 			return; // Error in task file
 		}
-
-		kcout << Kernel::number((kAhciPort->Ci & 1)) << endl;
 	}
 }