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.

Kernel/TTY/TTY.cpp

@@ -24,6 +24,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <AK/Debug.h>
 #include <AK/ScopeGuard.h>
 #include <Kernel/Process.h>
 #include <Kernel/TTY/TTY.h>
@@ -304,19 +305,19 @@ void TTY::flush_input()
 void TTY::set_termios(const termios& t)
 {
     m_termios = t;
-#ifdef TTY_DEBUG
-    dbg() << tty_name() << " set_termios: "
-          << "ECHO=" << should_echo_input()
-          << ", ISIG=" << should_generate_signals()
-          << ", ICANON=" << in_canonical_mode()
-          << ", ECHOE=" << ((m_termios.c_lflag & ECHOE) != 0)
-          << ", ECHOK=" << ((m_termios.c_lflag & ECHOK) != 0)
-          << ", ECHONL=" << ((m_termios.c_lflag & ECHONL) != 0)
-          << ", ISTRIP=" << ((m_termios.c_iflag & ISTRIP) != 0)
-          << ", ICRNL=" << ((m_termios.c_iflag & ICRNL) != 0)
-          << ", INLCR=" << ((m_termios.c_iflag & INLCR) != 0)
-          << ", IGNCR=" << ((m_termios.c_iflag & IGNCR) != 0);
-#endif
+
+    dbgln<debug_tty>("{} set_termios: ECHO={}, ISIG={}, ICANON={}, ECHOE={}, ECHOK={}, ECHONL={}, ISTRIP={}, ICRNL={}, INLCR={}, IGNCR={}",
+        tty_name(),
+        should_echo_input(),
+        should_generate_signals(),
+        in_canonical_mode(),
+        ((m_termios.c_lflag & ECHOE) != 0),
+        ((m_termios.c_lflag & ECHOK) != 0),
+        ((m_termios.c_lflag & ECHONL) != 0),
+        ((m_termios.c_iflag & ISTRIP) != 0),
+        ((m_termios.c_iflag & ICRNL) != 0),
+        ((m_termios.c_iflag & INLCR) != 0),
+        ((m_termios.c_iflag & IGNCR) != 0));
 }
 
 int TTY::ioctl(FileDescription&, unsigned request, FlatPtr arg)

Kernel/VM/AnonymousVMObject.cpp

@@ -24,14 +24,12 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <AK/Debug.h>
 #include <Kernel/Process.h>
 #include <Kernel/VM/AnonymousVMObject.h>
 #include <Kernel/VM/MemoryManager.h>
 #include <Kernel/VM/PhysicalPage.h>
 
-//#define COMMIT_DEBUG
-//#define PAGE_FAULT_DEBUG
-
 namespace Kernel {
 
 RefPtr<VMObject> AnonymousVMObject::clone()
@@ -474,9 +472,7 @@ PageFaultResponse AnonymousVMObject::handle_cow_fault(size_t page_index, Virtual
     }
 
     u8* dest_ptr = MM.quickmap_page(*page);
-#ifdef PAGE_FAULT_DEBUG
-    dbg() << "      >> COW " << page->paddr() << " <- " << page_slot->paddr();
-#endif
+    dbgln<debug_page_fault>("      >> COW {} <- {}", page->paddr(), page_slot->paddr());
     {
         SmapDisabler disabler;
         void* fault_at;

Kernel/VM/ContiguousVMObject.cpp

@@ -24,14 +24,13 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <AK/Debug.h>
 #include <Kernel/VM/ContiguousVMObject.h>
 #include <Kernel/VM/MemoryManager.h>
 #include <Kernel/VM/PhysicalPage.h>
 
 namespace Kernel {
 
-//#define CONTIGUOUS_VMOBJECT_DEBUG
-
 NonnullRefPtr<ContiguousVMObject> ContiguousVMObject::create_with_size(size_t size)
 {
     return adopt(*new ContiguousVMObject(size));
@@ -43,9 +42,7 @@ ContiguousVMObject::ContiguousVMObject(size_t size)
     auto contiguous_physical_pages = MM.allocate_contiguous_supervisor_physical_pages(size);
     for (size_t i = 0; i < page_count(); i++) {
         physical_pages()[i] = contiguous_physical_pages[i];
-#ifdef CONTIGUOUS_VMOBJECT_DEBUG
-        dbg() << "Contiguous page[" << i << "]: " << physical_pages()[i]->paddr();
-#endif
+        dbgln<debug_contiguous_vmobject>("Contiguous page[{}]: {}", i, physical_pages()[i]->paddr());
     }
 }
 

Kernel/VM/RangeAllocator.cpp

@@ -25,12 +25,12 @@
  */
 
 #include <AK/BinarySearch.h>
+#include <AK/Debug.h>
 #include <AK/QuickSort.h>
 #include <Kernel/Random.h>
 #include <Kernel/Thread.h>
 #include <Kernel/VM/RangeAllocator.h>
 
-//#define VRA_DEBUG
 #define VM_GUARD_PAGES
 
 namespace Kernel {
@@ -78,11 +78,18 @@ Vector<Range, 2> Range::carve(const Range& taken)
         parts.append({ base(), taken.base().get() - base().get() });
     if (taken.end() < end())
         parts.append({ taken.end(), end().get() - taken.end().get() });
-#ifdef VRA_DEBUG
-    dbg() << "VRA: carve: take " << String::format("%x", taken.base().get()) << "-" << String::format("%x", taken.end().get() - 1) << " from " << String::format("%x", base().get()) << "-" << String::format("%x", end().get() - 1);
-    for (size_t i = 0; i < parts.size(); ++i)
-        dbg() << "        " << String::format("%x", parts[i].base().get()) << "-" << String::format("%x", parts[i].end().get() - 1);
-#endif
+
+    if constexpr (debug_vra) {
+        dbgln("VRA: carve: take {:x}-{:x} from {:x}-{:x}",
+            taken.base().get(),
+            taken.end().get() - 1,
+            base().get(),
+            end().get() - 1);
+
+        for (size_t i = 0; i < parts.size(); ++i)
+            dbgln("        {:x}-{:x}", parts[i].base().get(), parts[i].end().get() - 1);
+    }
+
     return parts;
 }
 
@@ -122,17 +129,15 @@ Range RangeAllocator::allocate_anywhere(size_t size, size_t alignment)
 
         Range allocated_range(VirtualAddress(aligned_base), size);
         if (available_range == allocated_range) {
-#ifdef VRA_DEBUG
-            dbg() << "VRA: Allocated perfect-fit anywhere(" << String::format("%zu", size) << ", " << String::format("%zu", alignment) << "): " << String::format("%x", allocated_range.base().get());
-#endif
+            dbgln<debug_vra>("VRA: Allocated perfect-fit anywhere({}, {}): {}", size, alignment, allocated_range.base().get());
             m_available_ranges.remove(i);
             return allocated_range;
         }
         carve_at_index(i, allocated_range);
-#ifdef VRA_DEBUG
-        dbg() << "VRA: Allocated anywhere(" << String::format("%zu", size) << ", " << String::format("%zu", alignment) << "): " << String::format("%x", allocated_range.base().get());
-        dump();
-#endif
+        if constexpr (debug_vra) {
+            dbgln<debug_vra>("VRA: Allocated anywhere({}, {}): {}", size, alignment, allocated_range.base().get());
+            dump();
+        }
         return allocated_range;
     }
     klog() << "VRA: Failed to allocate anywhere: " << size << ", " << alignment;
@@ -155,10 +160,12 @@ Range RangeAllocator::allocate_specific(VirtualAddress base, size_t size)
             return allocated_range;
         }
         carve_at_index(i, allocated_range);
-#ifdef VRA_DEBUG
-        dbg() << "VRA: Allocated specific(" << size << "): " << String::format("%x", available_range.base().get());
-        dump();
-#endif
+
+        if constexpr (debug_vra) {
+            dbgln("VRA: Allocated specific({}): {}", size, available_range.base().get());
+            dump();
+        }
+
         return allocated_range;
     }
     dbgln("VRA: Failed to allocate specific range: {}({})", base, size);
@@ -172,10 +179,10 @@ void RangeAllocator::deallocate(Range range)
     ASSERT(range.size());
     ASSERT(range.base() < range.end());
 
-#ifdef VRA_DEBUG
-    dbg() << "VRA: Deallocate: " << String::format("%x", range.base().get()) << "(" << range.size() << ")";
-    dump();
-#endif
+    if constexpr (debug_vra) {
+        dbgln("VRA: Deallocate: {}({})", range.base().get(), range.size());
+        dump();
+    }
 
     ASSERT(!m_available_ranges.is_empty());
 

Kernel/VM/Region.cpp

@@ -24,6 +24,7 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <AK/Debug.h>
 #include <AK/Memory.h>
 #include <AK/StringView.h>
 #include <Kernel/FileSystem/Inode.h>
@@ -35,8 +36,6 @@
 #include <Kernel/VM/Region.h>
 #include <Kernel/VM/SharedInodeVMObject.h>
 
-//#define PAGE_FAULT_DEBUG
-
 namespace Kernel {
 
 Region::Region(const Range& range, NonnullRefPtr<VMObject> vmobject, size_t offset_in_vmobject, const String& name, u8 access, bool cacheable, bool kernel, bool shared)
@@ -411,9 +410,7 @@ PageFaultResponse Region::handle_fault(const PageFault& fault)
             return PageFaultResponse::ShouldCrash;
         }
         if (vmobject().is_inode()) {
-#ifdef PAGE_FAULT_DEBUG
-            dbg() << "NP(inode) fault in Region{" << this << "}[" << page_index_in_region << "]";
-#endif
+            dbgln<debug_page_fault>("NP(inode) fault in Region({})[{}]", this, page_index_in_region);
             return handle_inode_fault(page_index_in_region);
         }
 
@@ -438,14 +435,10 @@ PageFaultResponse Region::handle_fault(const PageFault& fault)
     }
     ASSERT(fault.type() == PageFault::Type::ProtectionViolation);
     if (fault.access() == PageFault::Access::Write && is_writable() && should_cow(page_index_in_region)) {
-#ifdef PAGE_FAULT_DEBUG
-        dbg() << "PV(cow) fault in Region{" << this << "}[" << page_index_in_region << "] at " << fault.vaddr();
-#endif
+        dbgln<debug_page_fault>("PV(cow) fault in Region({})[{}] at {}", this, page_index_in_region, fault.vaddr());
         auto* phys_page = physical_page(page_index_in_region);
         if (phys_page->is_shared_zero_page() || phys_page->is_lazy_committed_page()) {
-#ifdef PAGE_FAULT_DEBUG
-            dbg() << "NP(zero) fault in Region{" << this << "}[" << page_index_in_region << "] at " << fault.vaddr();
-#endif
+            dbgln<debug_page_fault>("NP(zero) fault in Region({})[{}] at {}", this, page_index_in_region, fault.vaddr());
             return handle_zero_fault(page_index_in_region);
         }
         return handle_cow_fault(page_index_in_region);
@@ -479,18 +472,14 @@ PageFaultResponse Region::handle_zero_fault(size_t page_index_in_region)
 
     if (page_slot->is_lazy_committed_page()) {
         page_slot = static_cast<AnonymousVMObject&>(*m_vmobject).allocate_committed_page(page_index_in_vmobject);
-#ifdef PAGE_FAULT_DEBUG
-        dbg() << "      >> ALLOCATED COMMITTED " << page_slot->paddr();
-#endif
+        dbgln<debug_page_fault>("      >> ALLOCATED COMMITTED {}", page_slot->paddr());
     } else {
         page_slot = MM.allocate_user_physical_page(MemoryManager::ShouldZeroFill::Yes);
         if (page_slot.is_null()) {
             klog() << "MM: handle_zero_fault was unable to allocate a physical page";
             return PageFaultResponse::OutOfMemory;
         }
-#ifdef PAGE_FAULT_DEBUG
-        dbg() << "      >> ALLOCATED " << page_slot->paddr();
-#endif
+        dbgln<debug_page_fault>("      >> ALLOCATED {}", page_slot->paddr());
     }
 
     if (!remap_vmobject_page(page_index_in_vmobject)) {
@@ -529,14 +518,10 @@ PageFaultResponse Region::handle_inode_fault(size_t page_index_in_region)
     auto page_index_in_vmobject = translate_to_vmobject_page(page_index_in_region);
     auto& vmobject_physical_page_entry = inode_vmobject.physical_pages()[page_index_in_vmobject];
 
-#ifdef PAGE_FAULT_DEBUG
-    dbg() << "Inode fault in " << name() << " page index: " << page_index_in_region;
-#endif
+    dbgln<debug_page_fault>("Inode fault in {} page index: {}", name(), page_index_in_region);
 
     if (!vmobject_physical_page_entry.is_null()) {
-#ifdef PAGE_FAULT_DEBUG
-        dbg() << ("MM: page_in_from_inode() but page already present. Fine with me!");
-#endif
+        dbgln<debug_page_fault>("MM: page_in_from_inode() but page already present. Fine with me!");
         if (!remap_vmobject_page(page_index_in_vmobject))
             return PageFaultResponse::OutOfMemory;
         return PageFaultResponse::Continue;