Kernel: Improve kernel panic message and rename it 'panic'->'Panic'

BAN/include/BAN/Errors.h

@@ -5,8 +5,8 @@
 #include <string.h>
 
 #if defined(__is_kernel)
-	#include <kernel/panic.h>
+	#include <kernel/Panic.h>
-	#define MUST(error)	({ auto e = error; if (e.IsError()) Kernel::panic("{}", e.GetError()); e.Value(); })
+	#define MUST(error)	({ auto e = error; if (e.IsError()) Kernel::Panic("{}", e.GetError()); e.Value(); })
 #else
 	#error "NOT IMPLEMENTED"
 #endif

kernel/Makefile

@@ -32,6 +32,7 @@ BUILDDIR=$(abspath build)
 KERNEL_OBJS=			\
 $(KERNEL_ARCH_OBJS)		\
 kernel/build_libc.o		\
+kernel/font.o			\
 kernel/Input.o			\
 kernel/kernel.o			\
 kernel/kmalloc.o		\
@@ -41,6 +42,7 @@ kernel/RTC.o			\
 kernel/Serial.o			\
 kernel/Shell.o			\
 kernel/SSP.o			\
+kernel/TTY.o			\
 icxxabi.o				\
  
 OBJS=					\
@@ -81,7 +83,7 @@ $(ARCHDIR)/crtbegin.o $(ARCHDIR)/crtend.o:
 	$(CC) -MD -c $< -o $(BUILDDIR)/$@ $(CFLAGS)
  
 always:
-	mkdir -p $(BUILDDIR)/arch/i386
+	mkdir -p $(BUILDDIR)/$(ARCHDIR)
 	mkdir -p $(BUILDDIR)/kernel
 
 clean:

kernel/arch/i386/APIC.cpp

@@ -4,7 +4,7 @@
 #include <kernel/IO.h>
 #include <kernel/kprint.h>
 #include <kernel/Paging.h>
-#include <kernel/panic.h>
+#include <kernel/Panic.h>
 #include <kernel/PIC.h>
 #include <kernel/Serial.h>
 

kernel/arch/i386/IDT.cpp

@@ -1,6 +1,6 @@
 #include <kernel/APIC.h>
 #include <kernel/IDT.h>
-#include <kernel/panic.h>
+#include <kernel/Panic.h>
 #include <kernel/kprint.h>
 #include <kernel/Serial.h>
 
@@ -54,7 +54,7 @@ static void (*s_irq_handlers[0xFF])() { nullptr };
 		kprintln("eax=0x{8H}, ebx=0x{8H}, ecx=0x{8H}, edx=0x{8H}", eax, ebx, ecx, edx);	\
 		kprintln("esp=0x{8H}, ebp=0x{8H}", esp, ebp);									\
 		kprintln("CR0=0x{8H} CR2=0x{8H} CR3=0x{8H} CR4=0x{8H}", cr0, cr2, cr3, cr4);	\
-		Kernel::panic(msg);																\
+		Kernel::Panic(msg);																\
 	}
 
 #define INTERRUPT_HANDLER_ERR(i, msg)													\
@@ -76,7 +76,7 @@ static void (*s_irq_handlers[0xFF])() { nullptr };
 		kprintln("eax=0x{8H}, ebx=0x{8H}, ecx=0x{8H}, edx=0x{8H}", eax, ebx, ecx, edx);	\
 		kprintln("esp=0x{8H}, ebp=0x{8H}", esp, ebp);									\
 		kprintln("CR0=0x{8H} CR2=0x{8H} CR3=0x{8H} CR4=0x{8H}", cr0, cr2, cr3, cr4);	\
-		Kernel::panic(msg " (error code: 0x{8H})", error_code);							\
+		Kernel::Panic(msg " (error code: 0x{8H})", error_code);							\
 	}
 
 INTERRUPT_HANDLER____(0x00, "Division Error")
@@ -142,7 +142,7 @@ found:
     if (s_irq_handlers[irq])
         s_irq_handlers[irq]();
 	else
-		Kernel::panic("no handler for irq 0x{2H}\n", irq);
+		Kernel::Panic("no handler for irq 0x{2H}\n", irq);
 
 	APIC::EOI(irq);
 }
@@ -176,7 +176,7 @@ namespace IDT
 
 	static void unimplemented_trap()
 	{
-		Kernel::panic("Unhandeled IRQ");
+		Kernel::Panic("Unhandeled IRQ");
 	}
 
 	static void register_interrupt_handler(uint8_t index, void (*f)())

kernel/arch/i386/Paging.cpp

@@ -1,6 +1,6 @@
 #include <kernel/CPUID.h>
 #include <kernel/Paging.h>
-#include <kernel/panic.h>
+#include <kernel/Panic.h>
 
 #include <string.h>
 
@@ -58,8 +58,6 @@ namespace Paging
 			:: "r" (s_page_directory_pointer_table)
 			: "eax"
 		);
-
-		dprintln("Paging enabled");
 	}
 
 	void MapPage(uintptr_t address)

kernel/arch/i386/VESA.cpp

@@ -3,7 +3,7 @@
 #include <kernel/kmalloc.h>
 #include <kernel/multiboot.h>
 #include <kernel/Paging.h>
-#include <kernel/panic.h>
+#include <kernel/Panic.h>
 #include <kernel/Serial.h>
 #include <kernel/VESA.h>
 
@@ -26,6 +26,7 @@ namespace VESA
 	static uint32_t		s_width		= 0;
 	static uint32_t		s_height	= 0;
 	static uint8_t		s_mode		= 0;
+	static bool			s_initialized = false;
 
 	static uint32_t s_terminal_width  = 0;
 	static uint32_t s_terminal_height = 0;
@@ -82,6 +83,11 @@ namespace VESA
 		return s_terminal_height;
 	}
 
+	bool IsInitialized()
+	{
+		return s_initialized;
+	}
+
 	bool Initialize()
 	{
 		if (!(s_multiboot_info->flags & MULTIBOOT_FLAGS_FRAMEBUFFER))
@@ -132,6 +138,7 @@ namespace VESA
 
 		SetCursorPositionImpl(0, 0, Color::BRIGHT_WHITE);
 		ClearImpl(Color::BLACK);
+		s_initialized = true;
 		return true;
 	}
 

kernel/arch/i386/make.config

@@ -7,9 +7,7 @@ KERNEL_ARCH_OBJS=		\
 $(ARCHDIR)/APIC.o		\
 $(ARCHDIR)/boot.o		\
 $(ARCHDIR)/CPUID.o		\
-$(ARCHDIR)/font.o		\
 $(ARCHDIR)/GDT.o		\
 $(ARCHDIR)/IDT.o		\
 $(ARCHDIR)/Paging.o		\
-$(ARCHDIR)/TTY.o		\
 $(ARCHDIR)/VESA.o		\

kernel/include/kernel/Panic.h

@@ -0,0 +1,31 @@
+#pragma once
+
+#include <kernel/kprint.h>
+#include <kernel/Serial.h>
+#include <kernel/VESA.h>
+
+#define Panic(...) PanicImpl(__FILE__, __LINE__, __VA_ARGS__)
+
+namespace Kernel
+{
+
+	template<typename... Args>
+	__attribute__((__noreturn__))
+	static void PanicImpl(const char* file, int line, const char* message, Args... args)
+	{
+		if (VESA::IsInitialized())
+		{
+			kprint("\e[31mKernel panic at {}:{}\n", file, line);
+			kprint(message, args...);
+			kprint("\e[m\n");
+		}
+		else
+		{
+			derrorln("Kernel panic at {}:{}", file, line);
+			derrorln(message, args...);
+		}
+		asm volatile("cli; hlt");
+		__builtin_unreachable();
+	}
+
+}

kernel/include/kernel/VESA.h

@@ -26,6 +26,7 @@ namespace VESA
 	};
 
 	bool Initialize();
+	bool IsInitialized();
 	void PutBitmapAt(const uint8_t*, uint32_t, uint32_t, Color);
 	void PutBitmapAt(const uint8_t*, uint32_t, uint32_t, Color, Color);
 	void PutCharAt(uint16_t, uint32_t, uint32_t, Color, Color);

kernel/include/kernel/kprint.h

@@ -3,5 +3,5 @@
 #include <BAN/Formatter.h>
 #include <kernel/TTY.h>
 
-#define kprint(...)			BAN::Formatter::print(TTY::PutCharCurrent, __VA_ARGS__)
+#define kprint(...)		BAN::Formatter::print(TTY::PutCharCurrent, __VA_ARGS__)
 #define kprintln(...)	BAN::Formatter::println(TTY::PutCharCurrent, __VA_ARGS__)

kernel/include/kernel/panic.h

@@ -1,19 +0,0 @@
-#pragma once
-
-#include <kernel/kprint.h>
-
-namespace Kernel
-{
-
-	template<typename... Args>
-	__attribute__((__noreturn__))
-	static void panic(const char* message, Args... args)
-	{
-		kprint("\e[31mKernel panic: ");
-		kprint(message, args...);
-		kprint("\e[m\n");
-		asm volatile("cli; hlt");
-		__builtin_unreachable();
-	}
-
-}

kernel/kernel/Input.cpp

@@ -307,7 +307,7 @@ namespace Input
 		}
 		else
 		{
-			Kernel::panic("Unknown target");
+			Kernel::Panic("Unknown target");
 		}
 	}
 
@@ -317,20 +317,20 @@ namespace Input
 		{
 			auto& command = s_command_queue.Front();
 			if (command.target != TARGET_KEYBOARD && command.target != TARGET_MOUSE)
-				Kernel::panic("Undefined target for command 0x{2H}", command.command);
+				Kernel::Panic("Undefined target for command 0x{2H}", command.command);
 
 			if (command._sent == 0 && command._ack == 0)
 			{
 				command._sent++;
 				if (!i8042_command(command.target, command.command))
-					Kernel::panic("PS/2 command oof {}, 0x{2H}", command.target, command.command);
+					Kernel::Panic("PS/2 command oof {}, 0x{2H}", command.target, command.command);
 			}
 
 			if (command._sent == 1 && command._ack == 1 && command.has_data)
 			{
 				command._sent++;
 				if (!i8042_command(command.target, command.data))
-					Kernel::panic("PS/2 data oof {}, 0x{2H}", command.target, command.data);
+					Kernel::Panic("PS/2 data oof {}, 0x{2H}", command.target, command.data);
 			}
 			
 			if (command._sent > 0 && PIT::ms_since_boot() > s_command_sent + 1000)
@@ -349,14 +349,14 @@ namespace Input
 					{
 						case I8042_KB_RESET:
 							if (s_command_response[0] != I8042_KB_SELF_TEST_PASS)
-								Kernel::panic("PS/2 Keyboard self test failed");
+								Kernel::Panic("PS/2 Keyboard self test failed");
 							break;
 						case I8042_KB_SET_SCAN_CODE_SET:
 							break;
 						case I8042_KB_SET_LEDS:
 							break;
 						default:
-							Kernel::panic("PS/2 Keyboard unhandled command");
+							Kernel::Panic("PS/2 Keyboard unhandled command");
 					}
 				}
 				else if (command.target == TARGET_MOUSE)
@@ -365,16 +365,16 @@ namespace Input
 					{
 						case I8042_MOUSE_RESET:
 							if (s_command_response[0] != I8042_MOUSE_SELF_TEST_PASS)
-								Kernel::panic("PS/2 Mouse self test failed");
+								Kernel::Panic("PS/2 Mouse self test failed");
 							if (s_command_response[1] != 0x00)
-								Kernel::panic("PS/2 Mouse invalid byte sent after self test");
+								Kernel::Panic("PS/2 Mouse invalid byte sent after self test");
 							break;
 						case I8042_MOUSE_ENABLE:
 							break;
 						case I8042_MOUSE_DISABLE:
 							break;
 						default:
-							Kernel::panic("PS/2 Mouse unhandled command");
+							Kernel::Panic("PS/2 Mouse unhandled command");
 					}
 				}
 

kernel/kernel/SSP.cpp

@@ -1,4 +1,4 @@
-#include <kernel/panic.h>
+#include <kernel/Panic.h>
 
 #include <stdint.h>
 #include <stdlib.h>
@@ -16,7 +16,7 @@ __BEGIN_DECLS
 __attribute__((noreturn))
 void __stack_chk_fail(void)
 {
-	Kernel::panic("Stack smashing detected");
+	Kernel::Panic("Stack smashing detected");
 	abort();
 }
 

kernel/kernel/TTY.cpp

@@ -1,5 +1,5 @@
 #include <kernel/kmalloc.h>
-#include <kernel/panic.h>
+#include <kernel/Panic.h>
 #include <kernel/Serial.h>
 #include <kernel/TTY.h>
 #include <kernel/VESA.h>
@@ -242,7 +242,7 @@ void TTY::HandleAnsiEscape(uint16_t ch)
 void TTY::RenderFromBuffer(uint32_t x, uint32_t y)
 {
 	if (x >= m_width || y >= m_height)
-		Kernel::panic("invalid render from buffer, {} {}", x, y);
+		Kernel::Panic("invalid render from buffer, {} {}", x, y);
 	const auto& cell = m_buffer[y * m_width + x];
 	VESA::PutCharAt(cell.character, x, y, cell.foreground, cell.background);
 }

kernel/kernel/kernel.cpp

@@ -2,12 +2,10 @@
 #include <kernel/GDT.h>
 #include <kernel/IDT.h>
 #include <kernel/Input.h>
-#include <kernel/IO.h>
 #include <kernel/kmalloc.h>
 #include <kernel/kprint.h>
 #include <kernel/multiboot.h>
 #include <kernel/Paging.h>
-#include <kernel/panic.h>
 #include <kernel/PIC.h>
 #include <kernel/PIT.h>
 #include <kernel/RTC.h>
@@ -62,8 +60,15 @@ extern "C" void kernel_main(multiboot_info_t* mbi, uint32_t magic)
 		return;
 	}
 
+
+	dprintln("hello from 64 bit protected mode!");
+
 	Paging::Initialize();
 
+	dprintln("paging enabled");
+
+	return;
+
 	s_multiboot_info = mbi;
 
 	if (!VESA::Initialize())

kernel/kernel/kmalloc.cpp

@@ -1,6 +1,6 @@
 #include <kernel/multiboot.h>
 #include <kernel/kmalloc.h>
-#include <kernel/panic.h>
+#include <kernel/Panic.h>
 #include <kernel/Serial.h>
 
 #include <stdint.h>
@@ -48,7 +48,7 @@ static bool s_initialized = false;
 void kmalloc_initialize()
 {
 	if (!(s_multiboot_info->flags & (1 << 6)))
-		Kernel::panic("Kmalloc: Bootloader didn't provide a memory map");
+		Kernel::Panic("Kmalloc: Bootloader didn't provide a memory map");
 
 	// Validate kmalloc memory
 	bool valid = false;
@@ -70,7 +70,7 @@ void kmalloc_initialize()
 	}
 
 	if (!valid)
-		Kernel::panic("Kmalloc: Could not find {} MB of memory", (double)(s_kmalloc_eternal_end - s_kmalloc_node_base));
+		Kernel::Panic("Kmalloc: Could not find {} MB of memory", (double)(s_kmalloc_eternal_end - s_kmalloc_node_base));
 
 	s_kmalloc_node_count = 1;
 	s_kmalloc_node_head = (kmalloc_node*)s_kmalloc_node_base;
@@ -90,7 +90,9 @@ void kmalloc_initialize()
 
 void kmalloc_dump_nodes()
 {
-	if (!s_initialized) Kernel::panic("kmalloc not initialized!");
+	if (!s_initialized)
+		Kernel::Panic("kmalloc not initialized!");
+	
 	dprintln("Kmalloc memory available {} MB", (float)s_kmalloc_available / MB);
 	dprintln("Kmalloc memory allocated {} MB", (float)s_kmalloc_allocated / MB);
 	dprintln("Using {}/{} nodes", s_kmalloc_node_count, s_kmalloc_max_nodes);
@@ -103,13 +105,14 @@ void kmalloc_dump_nodes()
 
 void* kmalloc_eternal(size_t size)
 {
-	if (!s_initialized) Kernel::panic("kmalloc not initialized!");
+	if (!s_initialized)
+		Kernel::Panic("kmalloc not initialized!");
 
 	if (size % ALIGN)
 		size += ALIGN - (size % ALIGN);
 
 	if (s_kmalloc_eternal_ptr % ALIGN)
-		Kernel::panic("Unaligned ptr in kmalloc_eternal");
+		Kernel::Panic("Unaligned ptr in kmalloc_eternal");
 
 	if (s_kmalloc_eternal_ptr + size > s_kmalloc_eternal_end)
 	{
@@ -124,7 +127,8 @@ void* kmalloc_eternal(size_t size)
 
 void* kmalloc(size_t size)
 {
-	if (!s_initialized) Kernel::panic("kmalloc not initialized!");
+	if (!s_initialized)
+		Kernel::Panic("kmalloc not initialized!");
 
 	if (size % ALIGN)
 		size += ALIGN - (size % ALIGN);
@@ -155,7 +159,7 @@ void* kmalloc(size_t size)
 	{
 		valid_node.free = false;
 		if (valid_node.addr % ALIGN)
-			Kernel::panic("Unaligned ptr in kmalloc");
+			Kernel::Panic("Unaligned ptr in kmalloc");
 		return (void*)valid_node.addr;
 	}
 
@@ -184,13 +188,13 @@ void* kmalloc(size_t size)
 	s_kmalloc_available -= size;
 
 	if (valid_node.addr % ALIGN)
-		Kernel::panic("Unaligned ptr in kmalloc");
+		Kernel::Panic("Unaligned ptr in kmalloc");
 	return (void*)valid_node.addr;
 }
 
 void kfree(void* addr)
 {
-	if (!s_initialized) Kernel::panic("kmalloc not initialized!");
+	if (!s_initialized) Kernel::Panic("kmalloc not initialized!");
 
 	if (addr == nullptr)
 		return;

libc/stdio/putchar.cpp

@@ -1,7 +1,7 @@
 #include <stdio.h>
 
 #if defined(__is_libk)
-	#include <kernel/panic.h>
+	#include <kernel/Panic.h>
 #else
 	#include <stdlib.h>
 #endif
@@ -9,7 +9,7 @@
 int putchar(int c)
 {
 #if defined(__is_libk)
-	Kernel::panic("Please use kprint() instead of stdio");
+	Kernel::Panic("Please use kprint() instead of stdio");
 #else
 	abort();
 #endif

libc/stdlib/abort.cpp

@@ -2,14 +2,14 @@
 #include <stdio.h>
 
 #if defined(__is_libk)
-#include <kernel/panic.h>
+#include <kernel/Panic.h>
 #endif
 
 __attribute__((__noreturn__))
 void abort(void)
 {
 #if defined(__is_libk)
-	Kernel::panic("abort()");
+	Kernel::Panic("abort()");
 #else
 	printf("abort()\n");
 #endif