IMPL: Better panic screen, fixing CUSA as in the gh issue.

Signed-off-by: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>

1 files changed, 93 insertions, 0 deletions

diff --git a/dev/Kernel/HALKit/AMD64/HalKernelPanic.cc b/dev/Kernel/HALKit/AMD64/HalKernelPanic.cc
new file mode 100644
index 00000000..ac41f7fa
--- /dev/null
+++ b/dev/Kernel/HALKit/AMD64/HalKernelPanic.cc
@@ -0,0 +1,93 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, Theater Quality Corp, all rights reserved.
+
+------------------------------------------- */
+
+#include <NewKit/KernelPanic.h>
+#include <ArchKit/ArchKit.h>
+#include <KernelKit/Timer.h>
+#include <KernelKit/DebugOutput.h>
+#include <NewKit/KString.h>
+#include <FirmwareKit/Handover.h>
+#include <KernelKit/FileMgr.h>
+#include <Mod/GfxMgr/FBMgr.h>
+#include <Mod/GfxMgr/TextMgr.h>
+#include <NewKit/Utils.h>
+
+/* Each error code is attributed with an ID, which will prompt a string onto the
+ * screen. Wait for debugger... */
+
+namespace Kernel
+{
+	/// @brief Dumping factory class.
+	class RecoveryFactory final
+	{
+	public:
+		STATIC Void Recover() noexcept;
+	};
+
+	/***********************************************************************************/
+	/// @brief Stops execution of the kernel.
+	/// @param id kernel stop ID.
+	/***********************************************************************************/
+	Void ke_panic(const Kernel::Int32& id, const Char* message)
+	{
+		fb_init();
+
+		auto panic_text = RGB(0xff, 0xff, 0xff);
+
+		auto y = 10;
+		auto x = 10;
+
+		Char* message_apicid = new Char[128];
+		rt_set_memory(message_apicid, 0, 128);
+
+		rt_copy_memory((VoidPtr) "panic id: ", message_apicid, rt_string_len("panic id: "));
+		rt_to_string(message_apicid + rt_string_len("panic id: "), (UIntPtr)id, 10);
+
+		fb_render_string(message_apicid, y, x, panic_text);
+
+		y += 10;
+
+		fb_render_string((message ? message : "message: panic raised, going nowhere after this!"), y, x, panic_text);
+
+		y += 10;
+
+		Char* message_cr2 = new Char[128];
+		rt_set_memory(message_cr2, 0, 128);
+
+		rt_copy_memory((VoidPtr) "cr2: ", message_cr2, rt_string_len("cr2: "));
+		rt_to_string(message_cr2 + rt_string_len("cr2: "), (UIntPtr)hal_read_cr2(), 10);
+
+		fb_render_string(message_cr2, y, x, panic_text);
+
+		kcout << message_apicid;
+		kcout << message_cr2;
+
+		y += 10;
+
+		fb_clear();
+
+		RecoveryFactory::Recover();
+	}
+
+	Void RecoveryFactory::Recover() noexcept
+	{
+		while (YES)
+		{
+			HAL::rt_halt();
+		}
+	}
+
+	void ke_runtime_check(bool expr, const Char* file, const Char* line)
+	{
+		if (!expr)
+		{
+			kcout << "FAILED: FILE: " << file << endl;
+			kcout << "FAILED: LINE: " << line << endl;
+
+			ke_panic(RUNTIME_CHECK_FAILED, file); // Runtime Check failed
+		}
+	}
+} // namespace Kernel