Everywhere: Replace a bundle of dbg with dbgln.

These changes are arbitrarily divided into multiple commits to make it
easier to find potentially introduced bugs with git bisect.

AK/Debug.h

@@ -129,3 +129,33 @@ constexpr bool debug_vmware_backdoor = true;
 #else
 constexpr bool debug_vmware_backdoor = false;
 #endif
+
+#ifdef FILEDESCRIPTION_DEBUG
+constexpr bool debug_file_description = true;
+#else
+constexpr bool debug_file_description = false;
+#endif
+
+#ifdef PROCFS_DEBUG
+constexpr bool debug_procfs = true;
+#else
+constexpr bool debug_procfs = false;
+#endif
+
+#ifdef VFS_DEBUG
+constexpr bool debug_vfs = true;
+#else
+constexpr bool debug_vfs = false;
+#endif
+
+#ifdef IOAPIC_DEBUG
+constexpr bool debug_ioapic = true;
+#else
+constexpr bool debug_ioapic = false;
+#endif
+
+#ifdef IRQ_DEBUG
+constexpr bool debug_irq = true;
+#else
+constexpr bool debug_irq = false;
+#endif

Kernel/Devices/USB/UHCIDescriptorTypes.h

@@ -124,7 +124,7 @@ struct alignas(16) TransferDescriptor final {
 
     void print()
     {
-        // FIXME: Use dbg() or klog() when we have something working.
+        // FIXME: Use dbgln() or klog() when we have something working.
         // We're using kprintf() for now because the output stands out from the rest of the text in the log
         kprintf("UHCI: TD(%p) @ 0x%08x: link_ptr=0x%08x, status=0x%08x, token=0x%08x, buffer_ptr=0x%08x\n", this, m_paddr, m_link_ptr, m_control_status, m_token, m_buffer_ptr);
 

Kernel/FileSystem/FileDescription.cpp

@@ -24,6 +24,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <AK/Debug.h>
 #include <AK/MemoryStream.h>
 #include <Kernel/Devices/BlockDevice.h>
 #include <Kernel/Devices/CharacterDevice.h>
@@ -40,8 +41,6 @@
 #include <Kernel/VM/MemoryManager.h>
 #include <LibC/errno_numbers.h>
 
-//#define FILEDESCRIPTION_DEBUG
-
 namespace Kernel {
 
 KResultOr<NonnullRefPtr<FileDescription>> FileDescription::create(Custody& custody)
@@ -50,9 +49,7 @@ KResultOr<NonnullRefPtr<FileDescription>> FileDescription::create(Custody& custo
     description->m_custody = custody;
     auto result = description->attach();
     if (result.is_error()) {
-#ifdef FILEDESCRIPTION_DEBUG
-        dbg() << "Failed to create file description for custody: " << result;
-#endif
+        dbgln<debug_file_description>("Failed to create file description for custody: {}", result);
         return result;
     }
     return description;
@@ -63,9 +60,7 @@ KResultOr<NonnullRefPtr<FileDescription>> FileDescription::create(File& file)
     auto description = adopt(*new FileDescription(file));
     auto result = description->attach();
     if (result.is_error()) {
-#ifdef FILEDESCRIPTION_DEBUG
-        dbg() << "Failed to create file description for file: " << result;
-#endif
+        dbgln<debug_file_description>("Failed to create file description for file: {}", result);
         return result;
     }
     return description;

Kernel/FileSystem/ProcFS.cpp

@@ -24,6 +24,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <AK/Debug.h>
 #include <AK/JsonArraySerializer.h>
 #include <AK/JsonObject.h>
 #include <AK/JsonObjectSerializer.h>
@@ -987,9 +988,7 @@ NonnullRefPtr<Inode> ProcFS::root_inode() const
 
 RefPtr<Inode> ProcFS::get_inode(InodeIdentifier inode_id) const
 {
-#ifdef PROCFS_DEBUG
-    dbg() << "ProcFS::get_inode(" << inode_id.index() << ")";
-#endif
+    dbgln<debug_procfs>("ProcFS::get_inode({})", inode_id.index());
     if (inode_id == root_inode()->identifier())
         return m_root_inode;
 
@@ -1102,9 +1101,7 @@ void ProcFSInode::did_seek(FileDescription& description, off_t new_offset)
 
 InodeMetadata ProcFSInode::metadata() const
 {
-#ifdef PROCFS_DEBUG
-    dbg() << "ProcFSInode::metadata(" << index() << ")";
-#endif
+    dbgln<debug_procfs>("ProcFSInode::metadata({})", index());
     InodeMetadata metadata;
     metadata.inode = identifier();
     metadata.ctime = mepoch;
@@ -1113,9 +1110,7 @@ InodeMetadata ProcFSInode::metadata() const
     auto proc_parent_directory = to_proc_parent_directory(identifier());
     auto proc_file_type = to_proc_file_type(identifier());
 
-#ifdef PROCFS_DEBUG
-    dbg() << "  -> pid: " << to_pid(identifier()).value() << ", fi: " << proc_file_type << ", pdi: " << proc_parent_directory;
-#endif
+    dbgln<debug_procfs>("  -> pid={}, fi={}, pdi={}", to_pid(identifier()).value(), (int)proc_file_type, (int)proc_parent_directory);
 
     if (is_process_related_file(identifier())) {
         ProcessID pid = to_pid(identifier());
@@ -1180,18 +1175,14 @@ InodeMetadata ProcFSInode::metadata() const
 
 ssize_t ProcFSInode::read_bytes(off_t offset, ssize_t count, UserOrKernelBuffer& buffer, FileDescription* description) const
 {
-#ifdef PROCFS_DEBUG
-    dbg() << "ProcFS: read_bytes offset: " << offset << " count: " << count;
-#endif
+    dbgln<debug_procfs>("ProcFS: read_bytes offset: {} count: {}", offset, count);
     ASSERT(offset >= 0);
     ASSERT(buffer.user_or_kernel_ptr());
 
     if (!description)
         return -EIO;
     if (!description->data()) {
-#ifdef PROCFS_DEBUG
-        dbgln("ProcFS: Do not have cached data!");
-#endif
+        dbgln<debug_procfs>("ProcFS: Do not have cached data!");
         return -EIO;
     }
 
@@ -1215,9 +1206,7 @@ InodeIdentifier ProcFS::ProcFSDirectoryEntry::identifier(unsigned fsid) const
 
 KResult ProcFSInode::traverse_as_directory(Function<bool(const FS::DirectoryEntryView&)> callback) const
 {
-#ifdef PROCFS_DEBUG
-    dbg() << "ProcFS: traverse_as_directory " << index();
-#endif
+    dbgln<debug_procfs>("ProcFS: traverse_as_directory {}", index());
 
     if (!Kernel::is_directory(identifier()))
         return ENOTDIR;

Kernel/FileSystem/VirtualFileSystem.cpp

@@ -24,6 +24,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <AK/Debug.h>
 #include <AK/LexicalPath.h>
 #include <AK/Singleton.h>
 #include <AK/StringBuilder.h>
@@ -132,7 +133,7 @@ KResult VFS::unmount(Inode& guest_inode)
         }
     }
 
-    dbg() << "VFS: Nothing mounted on inode " << guest_inode.identifier();
+    dbgln("VFS: Nothing mounted on inode {}", guest_inode.identifier());
     return ENODEV;
 }
 
@@ -401,9 +402,7 @@ KResultOr<NonnullRefPtr<FileDescription>> VFS::create(StringView path, int optio
         return EROFS;
 
     LexicalPath p(path);
-#ifdef VFS_DEBUG
-    dbg() << "VFS::create: '" << p.basename() << "' in " << parent_inode.identifier();
-#endif
+    dbgln<debug_vfs>("VFS::create: '{}' in {}", p.basename(), parent_inode.identifier());
     uid_t uid = owner.has_value() ? owner.value().uid : current_process->euid();
     gid_t gid = owner.has_value() ? owner.value().gid : current_process->egid();
     auto inode_or_error = parent_inode.create_child(p.basename(), mode, 0, uid, gid);
@@ -445,9 +444,7 @@ KResult VFS::mkdir(StringView path, mode_t mode, Custody& base)
         return EROFS;
 
     LexicalPath p(path);
-#ifdef VFS_DEBUG
-    dbg() << "VFS::mkdir: '" << p.basename() << "' in " << parent_inode.identifier();
-#endif
+    dbgln<debug_vfs>("VFS::mkdir: '{}' in {}", p.basename(), parent_inode.identifier());
     return parent_inode.create_child(p.basename(), S_IFDIR | mode, 0, current_process->euid(), current_process->egid()).result();
 }
 

Kernel/Interrupts/IOAPIC.cpp

@@ -24,6 +24,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <AK/Debug.h>
 #include <AK/Optional.h>
 #include <AK/StringView.h>
 #include <Kernel/ACPI/MultiProcessorParser.h>
@@ -201,13 +202,14 @@ void IOAPIC::configure_redirection_entry(int index, u8 interrupt_vector, u8 deli
     u32 redirection_entry1 = interrupt_vector | (delivery_mode & 0b111) << 8 | logical_destination << 11 | active_low << 13 | trigger_level_mode << 15 | masked << 16;
     u32 redirection_entry2 = destination << 24;
     write_register((index << 1) + IOAPIC_REDIRECTION_ENTRY_OFFSET, redirection_entry1);
-#ifdef IOAPIC_DEBUG
-    dbg() << "IOAPIC Value: 0x" << String::format("%x", read_register((index << 1) + IOAPIC_REDIRECTION_ENTRY_OFFSET));
-#endif
+
+    if constexpr (debug_ioapic)
+        dbgln("IOAPIC Value: {:#x}", read_register((index << 1) + IOAPIC_REDIRECTION_ENTRY_OFFSET));
+
     write_register((index << 1) + IOAPIC_REDIRECTION_ENTRY_OFFSET + 1, redirection_entry2);
-#ifdef IOAPIC_DEBUG
-    dbg() << "IOAPIC Value: 0x" << String::format("%x", read_register((index << 1) + 0x11));
-#endif
+
+    if constexpr (debug_ioapic)
+        dbgln("IOAPIC Value: {:#x}", read_register((index << 1) + 0x11));
 }
 
 void IOAPIC::mask_all_redirection_entries() const
@@ -319,17 +321,15 @@ void IOAPIC::write_register(u32 index, u32 value) const
     InterruptDisabler disabler;
     m_regs->select = index;
     m_regs->window = value;
-#ifdef IOAPIC_DEBUG
-    dbg() << "IOAPIC Writing, Value 0x" << String::format("%x", m_regs->window) << " @ offset 0x" << String::format("%x", m_regs->select);
-#endif
+
+    dbgln<debug_ioapic>("IOAPIC Writing, Value {:#x} @ offset {:#x}", (u32)m_regs->window, (u32)m_regs->select);
 }
 u32 IOAPIC::read_register(u32 index) const
 {
     InterruptDisabler disabler;
     m_regs->select = index;
-#ifdef IOAPIC_DEBUG
-    dbg() << "IOAPIC Reading, Value 0x" << String::format("%x", m_regs->window) << " @ offset 0x" << String::format("%x", m_regs->select);
-#endif
+    dbgln<debug_ioapic>("IOAPIC Reading, Value {:#x} @ offset {:#x}", (u32)m_regs->window, (u32)m_regs->select);
     return m_regs->window;
 }
+
 }

Kernel/Interrupts/IRQHandler.cpp

@@ -24,6 +24,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <AK/Debug.h>
 #include <Kernel/Arch/i386/CPU.h>
 #include <Kernel/Interrupts/IRQHandler.h>
 #include <Kernel/Interrupts/InterruptManagement.h>
@@ -45,9 +46,7 @@ IRQHandler::~IRQHandler()
 
 bool IRQHandler::eoi()
 {
-#ifdef IRQ_DEBUG
-    dbg() << "EOI IRQ " << interrupt_number();
-#endif
+    dbgln<debug_irq>("EOI IRQ {}", interrupt_number());
     if (!m_shared_with_others) {
         ASSERT(!m_responsible_irq_controller.is_null());
         m_responsible_irq_controller->eoi(*this);
@@ -58,9 +57,7 @@ bool IRQHandler::eoi()
 
 void IRQHandler::enable_irq()
 {
-#ifdef IRQ_DEBUG
-    dbg() << "Enable IRQ " << interrupt_number();
-#endif
+    dbgln<debug_irq>("Enable IRQ {}", interrupt_number());
     m_enabled = true;
     if (!m_shared_with_others)
         m_responsible_irq_controller->enable(*this);
@@ -68,9 +65,7 @@ void IRQHandler::enable_irq()
 
 void IRQHandler::disable_irq()
 {
-#ifdef IRQ_DEBUG
-    dbg() << "Disable IRQ " << interrupt_number();
-#endif
+    dbgln<debug_irq>("Disable IRQ {}", interrupt_number());
     m_enabled = false;
     if (!m_shared_with_others)
         m_responsible_irq_controller->disable(*this);

Kernel/KResult.h

@@ -177,3 +177,11 @@ private:
 };
 
 }
+
+template<>
+struct AK::Formatter<Kernel::KResult> : Formatter<int> {
+    void format(FormatBuilder& builder, Kernel::KResult value)
+    {
+        return Formatter<int>::format(builder, value);
+    }
+};