BuildSystem: Fix GCC compilation with new host GCC

Newer GCCs fail to compile GCC 15.2.0 because of how u8"" literals are
handled. This can be bypassed by compiling with -fno-char8_t

BAN/include/BAN/HashMap.h

@@ -98,7 +98,8 @@ namespace BAN
 
 		struct EntryHash
 		{
-			constexpr bool operator()(const Key& a)
+			template<detail::HashMapFindable<Key, HASH, COMP> U>
+			constexpr bool operator()(const U& a)
 			{
 				return HASH()(a);
 			}
@@ -110,7 +111,8 @@ namespace BAN
 
 		struct EntryComp
 		{
-			constexpr bool operator()(const Entry& a, const Key& b)
+			template<detail::HashMapFindable<Key, HASH, COMP> U>
+			constexpr bool operator()(const Entry& a, const U& b)
 			{
 				return COMP()(a.key, b);
 			}

kernel/arch/i686/Signal.S

@@ -59,7 +59,7 @@ signal_trampoline:
 	addl $24, %esp
 
 	// restore sigmask
-	movl $83, %eax      // SYS_SIGPROCMASK
+	movl $79, %eax      // SYS_SIGPROCMASK
 	movl $3,  %ebx      // SIG_SETMASK
 	leal 72(%esp), %ecx // set
 	xorl %edx, %edx     // oset

kernel/arch/x86_64/Signal.S

@@ -61,7 +61,7 @@ signal_trampoline:
 	addq $40, %rsp
 
 	// restore sigmask
-	movq $83, %rdi       // SYS_SIGPROCMASK
+	movq $79, %rdi       // SYS_SIGPROCMASK
 	movq $3,  %rsi       // SIG_SETMASK
 	leaq 192(%rsp), %rdx // set
 	xorq %r10, %r10      // oset

kernel/include/kernel/FS/Ext2/FileSystem.h

@@ -99,7 +99,8 @@ namespace Kernel
 		BAN::ErrorOr<uint32_t> reserve_free_block(uint32_t primary_bgd);
 		BAN::ErrorOr<void> release_block(uint32_t block);
 
-		BAN::HashMap<ino_t, BAN::RefPtr<Ext2Inode>>& inode_cache() { return m_inode_cache; }
+		BAN::ErrorOr<BAN::RefPtr<Ext2Inode>> open_inode(ino_t);
+		void remove_from_cache(ino_t);
 
 		const Ext2::Superblock& superblock() const { return m_superblock; }
 
@@ -155,6 +156,7 @@ namespace Kernel
 		BAN::RefPtr<Inode> m_root_inode;
 		BAN::Vector<uint32_t> m_superblock_backups;
 
+		Mutex m_inode_cache_lock;
 		BAN::HashMap<ino_t, BAN::RefPtr<Ext2Inode>> m_inode_cache;
 
 		BlockBufferManager m_buffer_manager;

kernel/include/kernel/FS/Ext2/Inode.h

@@ -55,7 +55,7 @@ namespace Kernel
 		BAN::ErrorOr<BAN::RefPtr<Inode>> find_inode_no_lock(BAN::StringView);
 
 		/* needs write end of the lock when allocate is true*/
-		BAN::ErrorOr<BAN::Optional<uint32_t>> block_from_indirect_block_no_lock(uint32_t& block, uint32_t index, uint32_t depth, bool allocate);
+		BAN::ErrorOr<BAN::Optional<uint32_t>> block_from_indirect_block_no_lock(uint32_t block, uint32_t index, uint32_t depth, bool allocate);
 		BAN::ErrorOr<BAN::Optional<uint32_t>> fs_block_of_data_block_index_no_lock(uint32_t data_block_index, bool allocate);
 
 		/* needs write end of the lock */
@@ -71,7 +71,13 @@ namespace Kernel
 	private:
 		Ext2Inode(Ext2FS& fs, Ext2::Inode inode, uint32_t ino);
 
-		static BAN::ErrorOr<BAN::RefPtr<Ext2Inode>> create(Ext2FS&, uint32_t);
+		BAN::Optional<uint32_t> block_cache_find(uint32_t block, uint32_t index) const;
+		void block_cache_remove(uint32_t block, uint32_t index);
+		void block_cache_add(uint32_t block, uint32_t index, uint32_t target);
+
+		BAN::RefPtr<Inode> dir_cache_find(BAN::StringView) const;
+		void dir_cache_remove(BAN::StringView);
+		void dir_cache_add(BAN::StringView, BAN::RefPtr<Inode>);
 
 	private:
 		struct ScopedSync
@@ -107,6 +113,27 @@ namespace Kernel
 		const uint32_t m_og_faddr;
 		const Ext2::Osd2 m_og_osd2;
 
+		struct BlockCacheEntry
+		{
+			mutable uint32_t freq;
+			uint32_t block;
+			uint32_t index;
+			uint32_t target;
+		};
+		mutable SpinLock m_block_cache_lock;
+		BAN::Array<BlockCacheEntry, 8> m_block_cache;
+
+		struct DirCacheEntry
+		{
+			mutable size_t freq { 0 };
+			BAN::RefPtr<Inode> inode;
+			size_t name_len { 0 };
+			char   name[256];
+		};
+		static constexpr size_t dir_cache_size = 32;
+		mutable RWLock m_dir_cache_lock;
+		BAN::Vector<DirCacheEntry> m_dir_cache;
+
 		friend class Ext2FS;
 		friend class BAN::RefPtr<Ext2Inode>;
 	};

kernel/include/kernel/FS/ProcFS/FileSystem.h

@@ -13,6 +13,8 @@ namespace Kernel
 		static void initialize();
 		static ProcFileSystem& get();
 
+		void post_scheduler_initialize();
+
 		BAN::ErrorOr<void> on_process_create(Process&);
 		void on_process_delete(Process&);
 

kernel/include/kernel/FS/ProcFS/Inode.h

@@ -76,7 +76,7 @@ namespace Kernel
 	class ProcROInode final : public TmpInode
 	{
 	public:
-		static BAN::ErrorOr<BAN::RefPtr<ProcROInode>> create_new(size_t (*callback)(off_t, BAN::ByteSpan), TmpFileSystem&, mode_t, uid_t, gid_t);
+		static BAN::ErrorOr<BAN::RefPtr<ProcROInode>> create_new(BAN::ErrorOr<size_t> (*callback)(off_t, BAN::ByteSpan, void*), TmpFileSystem&, void*, mode_t, uid_t, gid_t);
 		~ProcROInode() = default;
 
 	protected:
@@ -92,10 +92,11 @@ namespace Kernel
 		virtual bool has_hungup_impl() const override { return false; }
 
 	private:
-		ProcROInode(size_t (*callback)(off_t, BAN::ByteSpan), TmpFileSystem&, const TmpInodeInfo&);
+		ProcROInode(BAN::ErrorOr<size_t> (*callback)(off_t, BAN::ByteSpan, void*), TmpFileSystem&, void*, const TmpInodeInfo&);
 
 	private:
-		size_t (*m_callback)(off_t, BAN::ByteSpan);
+		BAN::ErrorOr<size_t> (*m_callback)(off_t, BAN::ByteSpan, void*);
+		void* m_argument;
 	};
 
 	class ProcSymlinkInode final : public TmpInode

kernel/include/kernel/FS/VirtualFileSystem.h

@@ -92,8 +92,9 @@ namespace Kernel
 		MountPoint* mount_from_root_inode(BAN::RefPtr<Inode>);
 
 	private:
-		Mutex					m_mutex;
 		BAN::RefPtr<FileSystem>	m_root_fs;
+
+		Mutex					m_mount_point_lock;
 		BAN::Vector<MountPoint>	m_mount_points;
 
 		friend class BAN::RefPtr<VirtualFileSystem>;

kernel/include/kernel/Lock/RWLock.h

@@ -1,7 +1,7 @@
 #pragma once
 
-#include <kernel/Lock/Mutex.h>
-#include <kernel/Lock/LockGuard.h>
+#include <kernel/Lock/SpinLock.h>
+#include <kernel/Lock/SpinLockAsMutex.h>
 
 namespace Kernel
 {
@@ -15,15 +15,18 @@ namespace Kernel
 
 		void rd_lock()
 		{
-			LockGuard _(m_mutex);
+			SpinLockGuard _(m_lock);
 			while (m_writers_waiting > 0 || m_writer != -1)
-				m_thread_blocker.block_indefinite(&m_mutex);
+			{
+				SpinLockGuardAsMutex smutex(_);
+				m_thread_blocker.block_indefinite(&smutex);
+			}
 			m_readers_active++;
 		}
 
 		void rd_unlock()
 		{
-			LockGuard _(m_mutex);
+			SpinLockGuard _(m_lock);
 			if (--m_readers_active == 0)
 				m_thread_blocker.unblock();
 		}
@@ -36,11 +39,14 @@ namespace Kernel
 				return;
 			}
 
-			LockGuard _(m_mutex);
+			SpinLockGuard _(m_lock);
 
 			m_writers_waiting++;
 			while (m_readers_active > 0 || m_writer != -1)
-				m_thread_blocker.block_indefinite(&m_mutex);
+			{
+				SpinLockGuardAsMutex smutex(_);
+				m_thread_blocker.block_indefinite(&smutex);
+			}
 			m_writers_waiting--;
 
 			m_writer = Thread::current_tid();
@@ -51,13 +57,13 @@ namespace Kernel
 		{
 			if (--m_writer_depth != 0)
 				return;
-			LockGuard _(m_mutex);
+			SpinLockGuard _(m_lock);
 			m_writer = -1;
 			m_thread_blocker.unblock();
 		}
 
 	private:
-		Mutex m_mutex;
+		SpinLock m_lock;
 		ThreadBlocker m_thread_blocker;
 		uint32_t m_readers_active  { 0 };
 		uint32_t m_writers_waiting { 0 };

kernel/include/kernel/Networking/NetworkInterface.h

@@ -65,6 +65,9 @@ namespace Kernel
 		}
 		virtual BAN::ErrorOr<void> send_bytes(BAN::MACAddress destination, EtherType protocol, BAN::Span<const BAN::ConstByteSpan> payload) = 0;
 
+	private:
+		BAN::ErrorOr<long> ioctl_impl(int, void*) override;
+
 	private:
 		const Type m_type;
 		char m_name[10];

kernel/include/kernel/OpenFileDescriptorSet.h

@@ -58,6 +58,8 @@ namespace Kernel
 		BAN::ErrorOr<size_t> recvmsg(int socket, msghdr& message, int flags);
 		BAN::ErrorOr<size_t> sendmsg(int socket, const msghdr& message, int flags);
 
+		int get_max_open_fd() const;
+
 		BAN::ErrorOr<VirtualFileSystem::File> file_of(int) const;
 		BAN::ErrorOr<BAN::String> path_of(int) const;
 		BAN::ErrorOr<BAN::RefPtr<Inode>> inode_of(int);

kernel/include/kernel/Processor.h

@@ -57,6 +57,12 @@ namespace Kernel
 			};
 		};
 
+		struct LoadStats
+		{
+			uint64_t ns_idle;
+			uint64_t ns_total;
+		};
+
 	public:
 		static Processor& create(ProcessorID id);
 		static Processor& initialize();
@@ -72,9 +78,6 @@ namespace Kernel
 		static void set_smp_enabled() { s_is_smp_enabled = true; }
 		static void wait_until_processors_ready();
 
-		static void toggle_should_print_cpu_load() { s_should_print_cpu_load = !s_should_print_cpu_load; }
-		static bool get_should_print_cpu_load() { return s_should_print_cpu_load; }
-
 		static ProcessorID bsp_id() { return s_bsp_id; }
 		static bool current_is_bsp() { return current_id() == bsp_id(); }
 
@@ -116,6 +119,8 @@ namespace Kernel
 		static void* get_current_page_table()					{ return read_gs_sized<void*>(offsetof(Processor, m_current_page_table)); }
 		static void set_current_page_table(void* page_table)	{ write_gs_sized<void*>(offsetof(Processor, m_current_page_table), page_table); }
 
+		static LoadStats get_load_stats(size_t index);
+
 		static void yield();
 		static Scheduler& scheduler() { return *read_gs_sized<Scheduler*>(offsetof(Processor, m_scheduler)); }
 
@@ -187,7 +192,6 @@ namespace Kernel
 		static ProcessorID s_bsp_id;
 		static BAN::Atomic<uint8_t> s_processor_count;
 		static BAN::Atomic<bool>    s_is_smp_enabled;
-		static BAN::Atomic<bool>    s_should_print_cpu_load;
 		static paddr_t              s_shared_page_paddr;
 		static vaddr_t              s_shared_page_vaddr;
 
@@ -207,10 +211,9 @@ namespace Kernel
 
 		Scheduler* m_scheduler { nullptr };
 
-		uint64_t m_start_ns { 0 };
-		uint64_t m_idle_ns { 0 };
-		uint64_t m_last_update_ns { 0 };
-		uint64_t m_next_update_ns { 0 };
+		BAN::Atomic<bool> m_load_stat_lock;
+		uint64_t m_load_start_ns { 0 };
+		LoadStats m_load_stats {};
 
 		BAN::Atomic<SMPMessage*> m_smp_pending { nullptr };
 		BAN::Atomic<SMPMessage*> m_smp_free    { nullptr };

kernel/kernel/Device/FramebufferDevice.cpp

@@ -356,51 +356,7 @@ namespace Kernel
 
 		void do_msync(uint32_t first_pixel, uint32_t pixel_count)
 		{
-			if (!Processor::get_should_print_cpu_load())
-				return m_framebuffer->sync_pixels_linear(first_pixel, pixel_count);
-
-			const uint32_t fb_width = m_framebuffer->width();
-
-			// If we are here (in FramebufferMemoryRegion), our terminal driver is FramebufferTerminalDriver
-			ASSERT(g_terminal_driver->has_font());
-			const auto& font = g_terminal_driver->font();
-
-			const uint32_t x = first_pixel % fb_width;
-			const uint32_t y = first_pixel / fb_width;
-
-			const uint32_t load_w = 16                 * font.width();
-			const uint32_t load_h = Processor::count() * font.height();
-
-			if (y >= load_h || x + pixel_count <= fb_width - load_w)
-				return m_framebuffer->sync_pixels_linear(first_pixel, pixel_count);
-
-			if (x >= fb_width - load_w && x + pixel_count <= fb_width)
-				return;
-
-			if (x < fb_width - load_w)
-				m_framebuffer->sync_pixels_linear(first_pixel, fb_width - load_w - x);
-
-			if (x + pixel_count > fb_width)
-			{
-				const uint32_t past_last_pixel = first_pixel + pixel_count;
-
-				first_pixel = (y + 1) * fb_width;
-				pixel_count = past_last_pixel - first_pixel;
-
-				const uint32_t cpu_load_end = load_h * fb_width;
-
-				while (pixel_count && first_pixel < cpu_load_end)
-				{
-					m_framebuffer->sync_pixels_linear(first_pixel, BAN::Math::min(pixel_count, fb_width - load_w));
-
-					const uint32_t advance = BAN::Math::min(pixel_count, fb_width);
-					pixel_count -= advance;
-					first_pixel += advance;
-				}
-
-				if (pixel_count)
-					m_framebuffer->sync_pixels_linear(first_pixel, pixel_count);
-			}
+			m_framebuffer->sync_pixels_linear(first_pixel, pixel_count);
 		}
 
 	private:

kernel/kernel/FS/Ext2/FileSystem.cpp

@@ -167,10 +167,36 @@ namespace Kernel
 
 	BAN::ErrorOr<void> Ext2FS::initialize_root_inode()
 	{
-		m_root_inode = TRY(Ext2Inode::create(*this, Ext2::Enum::ROOT_INO));
+		m_root_inode = TRY(open_inode(Ext2::Enum::ROOT_INO));
 		return {};
 	}
 
+	BAN::ErrorOr<BAN::RefPtr<Ext2Inode>> Ext2FS::open_inode(ino_t ino)
+	{
+		LockGuard _(m_inode_cache_lock);
+
+		auto it = m_inode_cache.find(ino);
+		if (it != m_inode_cache.end())
+			return it->value;
+
+		auto inode_location = TRY(locate_inode(ino));
+
+		auto block_buffer = TRY(get_block_buffer());
+		TRY(read_block(inode_location.block, block_buffer));
+
+		auto& inode = block_buffer.span().slice(inode_location.offset).as<Ext2::Inode>();
+
+		auto result = TRY(BAN::RefPtr<Ext2Inode>::create(*this, inode, ino));
+		TRY(m_inode_cache.insert(ino, result));
+		return result;
+	}
+
+	void Ext2FS::remove_from_cache(ino_t ino)
+	{
+		LockGuard _(m_inode_cache_lock);
+		m_inode_cache.remove(ino);
+	}
+
 	BAN::ErrorOr<uint32_t> Ext2FS::create_inode(const Ext2::Inode& ext2_inode)
 	{
 		auto bgd_buffer = TRY(m_buffer_manager.get_buffer());

kernel/kernel/FS/Ext2/Inode.cpp

@@ -42,24 +42,6 @@ namespace Kernel
 		return (m_ino - 1) / m_fs.superblock().blocks_per_group;
 	}
 
-	BAN::ErrorOr<BAN::RefPtr<Ext2Inode>> Ext2Inode::create(Ext2FS& fs, uint32_t inode_ino)
-	{
-		auto it = fs.inode_cache().find(inode_ino);
-		if (it != fs.inode_cache().end())
-			return it->value;
-
-		auto inode_location = TRY(fs.locate_inode(inode_ino));
-
-		auto block_buffer = TRY(fs.get_block_buffer());
-		TRY(fs.read_block(inode_location.block, block_buffer));
-
-		auto& inode = block_buffer.span().slice(inode_location.offset).as<Ext2::Inode>();
-
-		auto result = TRY(BAN::RefPtr<Ext2Inode>::create(fs, inode, inode_ino));
-		TRY(fs.inode_cache().insert(inode_ino, result));
-		return result;
-	}
-
 	Ext2Inode::~Ext2Inode()
 	{
 		if (m_nlink > 0)
@@ -89,57 +71,53 @@ namespace Kernel
 		return {};
 	}
 
-	BAN::ErrorOr<BAN::Optional<uint32_t>> Ext2Inode::block_from_indirect_block_no_lock(uint32_t& block, uint32_t index, uint32_t depth, bool allocate)
+	BAN::ErrorOr<BAN::Optional<uint32_t>> Ext2Inode::block_from_indirect_block_no_lock(uint32_t block, uint32_t index, uint32_t depth, bool allocate)
 	{
 		const uint32_t indices_per_fs_block = blksize() / sizeof(uint32_t);
 
-		if (block == 0 && !allocate)
-			return BAN::Optional<uint32_t>();
+		ASSERT(block != 0);
 
 		if (depth == 0)
+			return BAN::Optional<uint32_t>(block);
+
+		uint32_t local_index = index;
+		for (uint32_t i = 1; i < depth; i++)
+			local_index /= indices_per_fs_block;
+		local_index %= indices_per_fs_block;
+
+		uint32_t next_block = 0;
+
+		if (auto cached = block_cache_find(block, local_index); cached.has_value())
+			next_block = cached.value();
+
+		if (next_block == 0)
 		{
-			if (block == 0)
+			auto block_buffer = TRY(m_fs.get_block_buffer());
+			TRY(m_fs.read_block(block, block_buffer));
+			auto block_span = block_buffer.span().as_span<uint32_t>();
+
+			next_block = block_span[local_index];
+
+			if (next_block == 0)
 			{
-				block = TRY(m_fs.reserve_free_block(block_group()));
+				if (!allocate)
+					return BAN::Optional<uint32_t>();
+
+				auto zero_buffer = TRY(m_fs.get_block_buffer());
+				memset(zero_buffer.data(), 0, zero_buffer.size());
+
+				next_block = TRY(m_fs.reserve_free_block(block_group()));
+				TRY(m_fs.write_block(next_block, zero_buffer));
 				m_blocks++;
 
-				auto block_buffer = TRY(m_fs.get_block_buffer());
-				memset(block_buffer.data(), 0x00, block_buffer.size());
+				block_span[local_index] = next_block;
 				TRY(m_fs.write_block(block, block_buffer));
 			}
 
-			return BAN::Optional<uint32_t>(block);
+			block_cache_add(block, local_index, next_block);
 		}
 
-		auto block_buffer = TRY(m_fs.get_block_buffer());
-
-		bool needs_write = false;
-
-		if (block != 0)
-			TRY(m_fs.read_block(block, block_buffer));
-		else
-		{
-			block = TRY(m_fs.reserve_free_block(block_group()));
-			m_blocks++;
-
-			memset(block_buffer.data(), 0, block_buffer.size());
-
-			needs_write = true;
-		}
-
-		uint32_t divisor = 1;
-		for (uint32_t i = 1; i < depth; i++)
-			divisor *= indices_per_fs_block;
-
-		uint32_t& new_block = block_buffer.span().as_span<uint32_t>()[(index / divisor) % indices_per_fs_block];
-		const auto old_block = new_block;
-
-		const auto result = TRY(block_from_indirect_block_no_lock(new_block, index, depth - 1, allocate));
-
-		if (needs_write || old_block != new_block)
-			TRY(m_fs.write_block(block, block_buffer));
-
-		return result;
+		return block_from_indirect_block_no_lock(next_block, index, depth - 1, allocate);
 	}
 
 	BAN::ErrorOr<BAN::Optional<uint32_t>> Ext2Inode::fs_block_of_data_block_index_no_lock(uint32_t data_block_index, bool allocate)
@@ -166,16 +144,29 @@ namespace Kernel
 		}
 		data_block_index -= 12;
 
-		if (data_block_index < indices_per_block)
-			return block_from_indirect_block_no_lock(m_ext2_blocks.block[12], data_block_index, 1, allocate);
-		data_block_index -= indices_per_block;
+		uint32_t depth_block_count = indices_per_block;
+		for (size_t i = 0; i < 3; i++)
+		{
+			if (data_block_index < depth_block_count)
+			{
+				auto& block = m_ext2_blocks.block[12 + i];
+				if (block == 0)
+				{
+					if (!allocate)
+						return BAN::Optional<uint32_t>();
 
-		if (data_block_index < indices_per_block * indices_per_block)
-			return block_from_indirect_block_no_lock(m_ext2_blocks.block[13], data_block_index, 2, allocate);
-		data_block_index -= indices_per_block * indices_per_block;
+					auto zero_buffer = TRY(m_fs.get_block_buffer());
+					memset(zero_buffer.data(), 0, zero_buffer.size());
 
-		if (data_block_index < indices_per_block * indices_per_block * indices_per_block)
-			return block_from_indirect_block_no_lock(m_ext2_blocks.block[14], data_block_index, 3, allocate);
+					block = TRY(m_fs.reserve_free_block(block_group()));
+					TRY(m_fs.write_block(block, zero_buffer));
+					m_blocks++;
+				}
+				return block_from_indirect_block_no_lock(block, data_block_index, i + 1, allocate);
+			}
+			data_block_index -= indices_per_block;
+			depth_block_count *= indices_per_block;
+		}
 
 		ASSERT_NOT_REACHED();
 	}
@@ -542,7 +533,7 @@ done:
 
 		const uint32_t new_ino = TRY(m_fs.create_inode(initialize_new_inode_info(mode, uid, gid)));
 
-		auto inode_or_error = Ext2Inode::create(m_fs, new_ino);
+		auto inode_or_error = m_fs.open_inode(new_ino);
 		if (inode_or_error.is_error())
 		{
 			TRY(m_fs.delete_inode(new_ino));
@@ -568,7 +559,7 @@ done:
 
 		const uint32_t new_ino = TRY(m_fs.create_inode(initialize_new_inode_info(mode, uid, gid)));
 
-		auto inode_or_error = Ext2Inode::create(m_fs, new_ino);
+		auto inode_or_error = m_fs.open_inode(new_ino);
 		if (inode_or_error.is_error())
 		{
 			TRY(m_fs.delete_inode(new_ino));
@@ -814,7 +805,7 @@ needs_new_block:
 					}
 					else if (entry_name == ".."_sv)
 					{
-						auto parent = TRY(Ext2Inode::create(m_fs, entry.inode));
+						auto parent = TRY(m_fs.open_inode(entry.inode));
 						parent->m_nlink--;
 						TRY(parent->sync_inode_no_lock());
 					}
@@ -860,7 +851,7 @@ needs_new_block:
 				auto& entry = block_buffer.span().slice(offset).as<Ext2::LinkedDirectoryEntry>();
 				if (entry.inode && name == BAN::StringView(entry.name, entry.name_len))
 				{
-					auto inode = TRY(Ext2Inode::create(m_fs, entry.inode));
+					auto inode = TRY(m_fs.open_inode(entry.inode));
 					if (cleanup_directory && inode->mode().ifdir())
 					{
 						if (!TRY(inode->is_directory_empty_no_lock()))
@@ -878,11 +869,7 @@ needs_new_block:
 					// NOTE: If this was the last link to inode we must
 					//       remove it from inode cache to trigger cleanup
 					if (inode->nlink() == 0)
-					{
-						auto& cache = m_fs.inode_cache();
-						if (cache.contains(inode->ino()))
-							cache.remove(inode->ino());
-					}
+						m_fs.remove_from_cache(inode->ino());
 
 					// FIXME: This should expand the last inode if exists
 					entry.inode = 0;
@@ -892,6 +879,8 @@ needs_new_block:
 			}
 		}
 
+		dir_cache_remove(name);
+
 		return {};
 	}
 
@@ -948,6 +937,9 @@ needs_new_block:
 	{
 		ASSERT(mode().ifdir());
 
+		if (auto cached = dir_cache_find(file_name))
+			return cached;
+
 		auto block_buffer = TRY(m_fs.get_block_buffer());
 
 		for (uint32_t i = 0; i < max_used_data_block_count(); i++)
@@ -963,11 +955,129 @@ needs_new_block:
 				auto& entry = entry_span.as<const Ext2::LinkedDirectoryEntry>();
 				BAN::StringView entry_name(entry.name, entry.name_len);
 				if (entry.inode && entry_name == file_name)
-					return BAN::RefPtr<Inode>(TRY(Ext2Inode::create(m_fs, entry.inode)));
+				{
+					auto inode = BAN::RefPtr<Inode>(TRY(m_fs.open_inode(entry.inode)));
+					dir_cache_add(file_name, inode);
+					return inode;
+				}
 				entry_span = entry_span.slice(entry.rec_len);
 			}
 		}
 
 		return BAN::Error::from_errno(ENOENT);
 	}
+
+	BAN::Optional<uint32_t> Ext2Inode::block_cache_find(uint32_t block, uint32_t index) const
+	{
+		SpinLockGuard _(m_block_cache_lock);
+		for (const auto& cache : m_block_cache)
+		{
+			if (cache.block != block || cache.index != index)
+				continue;
+			cache.freq++;
+			return cache.target;
+		}
+		return {};
+	}
+
+	void Ext2Inode::block_cache_remove(uint32_t block, uint32_t index)
+	{
+		SpinLockGuard _(m_block_cache_lock);
+		for (auto& cache : m_block_cache)
+		{
+			if (cache.block != block || cache.index != index)
+				continue;
+			cache = {};
+			return;
+		}
+	}
+
+	void Ext2Inode::block_cache_add(uint32_t block, uint32_t index, uint32_t target)
+	{
+		SpinLockGuard _(m_block_cache_lock);
+
+		size_t min_freq = BAN::numeric_limits<size_t>::max();
+		size_t min_index = 0;
+		for (size_t i = 0; i < m_block_cache.size(); i++)
+		{
+			const auto& cache = m_block_cache[i];
+			if (cache.block == block && cache.index == index)
+			{
+				ASSERT(cache.target == target);
+				cache.freq++;
+				return;
+			}
+			if (cache.freq < min_freq)
+			{
+				min_freq = cache.freq;
+				min_index = i;
+			}
+		}
+
+		m_block_cache[min_index] = {
+			.freq = 1,
+			.block = block,
+			.index = index,
+			.target = target,
+		};
+	}
+
+	BAN::RefPtr<Inode> Ext2Inode::dir_cache_find(BAN::StringView name) const
+	{
+		RWLockRDGuard _(m_dir_cache_lock);
+		for (const auto& cache : m_dir_cache)
+		{
+			if (!cache.inode || name != BAN::StringView(cache.name, cache.name_len))
+				continue;
+			BAN::atomic_add_fetch(cache.freq, 1);
+			return cache.inode;
+		}
+		return {};
+	}
+
+	void Ext2Inode::dir_cache_remove(BAN::StringView name)
+	{
+		RWLockWRGuard _(m_dir_cache_lock);
+		for (auto& cache : m_dir_cache)
+		{
+			if (!cache.inode || name != BAN::StringView(cache.name, cache.name_len))
+				continue;
+			cache.freq = 0;
+			cache.inode = {};
+			return;
+		}
+	}
+
+	void Ext2Inode::dir_cache_add(BAN::StringView name, BAN::RefPtr<Inode> inode)
+	{
+		RWLockWRGuard _(m_dir_cache_lock);
+
+		if (m_dir_cache.empty() && m_dir_cache.resize(dir_cache_size).is_error())
+			return;
+
+		size_t min_freq = BAN::numeric_limits<size_t>::max();
+		size_t min_index = 0;
+		for (size_t i = 0; i < m_dir_cache.size(); i++)
+		{
+			const auto& cache = m_dir_cache[i];
+			if (cache.inode && name == BAN::StringView(cache.name, cache.name_len))
+			{
+				ASSERT(cache.inode == inode);
+				cache.freq++;
+				return;
+			}
+			if (cache.freq < min_freq)
+			{
+				min_freq  = cache.freq;
+				min_index = i;
+			}
+		}
+
+		auto& cache = m_dir_cache[min_index];
+		cache.freq     = 1;
+		cache.inode    = inode;
+		cache.name_len = name.size();
+		memcpy(cache.name, name.data(), name.size());
+	}
+
 }

kernel/kernel/FS/ProcFS/FileSystem.cpp

@@ -16,22 +16,23 @@ namespace Kernel
 		MUST(s_instance->TmpFileSystem::initialize(0555, 0, 0));
 
 		auto meminfo_inode = MUST(ProcROInode::create_new(
-			[](off_t offset, BAN::ByteSpan buffer) -> size_t
+			[](off_t offset, BAN::ByteSpan buffer, void*) -> BAN::ErrorOr<size_t>
 			{
 				ASSERT(offset >= 0);
 				if ((size_t)offset >= sizeof(full_meminfo_t))
 					return 0;
 
-				full_meminfo_t meminfo;
-				meminfo.page_size = PAGE_SIZE;
-				meminfo.free_pages = Heap::get().free_pages();
-				meminfo.used_pages = Heap::get().used_pages();
+				const full_meminfo_t meminfo {
+					.page_size = PAGE_SIZE,
+					.free_pages = Heap::get().free_pages(),
+					.used_pages = Heap::get().used_pages(),
+				};
 
 				size_t bytes = BAN::Math::min<size_t>(sizeof(full_meminfo_t) - offset, buffer.size());
 				memcpy(buffer.data(), (uint8_t*)&meminfo + offset, bytes);
 				return bytes;
 			},
-			*s_instance, 0444, 0, 0
+			*s_instance, nullptr, 0444, 0, 0
 		));
 		MUST(static_cast<TmpDirectoryInode*>(s_instance->root_inode().ptr())->link_inode(*meminfo_inode, "meminfo"_sv));
 
@@ -48,6 +49,35 @@ namespace Kernel
 		MUST(static_cast<TmpDirectoryInode*>(s_instance->root_inode().ptr())->link_inode(*self_inode, "self"_sv));
 	}
 
+	void ProcFileSystem::post_scheduler_initialize()
+	{
+		MUST(s_instance->root_inode()->create_directory("cpu"_sv, Inode::Mode::IFDIR | 0555, 0, 0));
+		auto cpu_directory = MUST(s_instance->root_inode()->find_inode("cpu"_sv));
+
+		for (size_t i = 0; i < Processor::count(); i++)
+		{
+			auto cpu_inode = MUST(ProcROInode::create_new(
+				[](off_t offset, BAN::ByteSpan buffer, void* index_ptr) -> BAN::ErrorOr<size_t>
+				{
+					ASSERT(offset >= 0);
+
+					const size_t index = reinterpret_cast<uintptr_t>(index_ptr);
+					const auto load_stats = Processor::get_load_stats(index);
+
+					auto string = TRY(BAN::String::formatted("{} {}", load_stats.ns_idle, load_stats.ns_total));
+					if (static_cast<size_t>(offset) >= string.size())
+						return 0;
+
+					const size_t bytes = BAN::Math::min<size_t>(string.size() - offset, buffer.size());
+					memcpy(buffer.data(), string.data() + offset, bytes);
+					return bytes;
+				},
+				*s_instance, reinterpret_cast<void*>(i), 0444, 0, 0
+			));
+			MUST(cpu_directory->link_inode(MUST(BAN::String::formatted("{}", i)), cpu_inode));
+		}
+	}
+
 	ProcFileSystem& ProcFileSystem::get()
 	{
 		ASSERT(s_instance);

kernel/kernel/FS/ProcFS/Inode.cpp

@@ -95,19 +95,20 @@ namespace Kernel
 		return (m_process.*m_callback)();
 	}
 
-	BAN::ErrorOr<BAN::RefPtr<ProcROInode>> ProcROInode::create_new(size_t (*callback)(off_t, BAN::ByteSpan), TmpFileSystem& fs, mode_t mode, uid_t uid, gid_t gid)
+	BAN::ErrorOr<BAN::RefPtr<ProcROInode>> ProcROInode::create_new(BAN::ErrorOr<size_t> (*callback)(off_t, BAN::ByteSpan, void*), TmpFileSystem& fs, void* argument, mode_t mode, uid_t uid, gid_t gid)
 	{
 		auto inode_info = create_inode_info(Mode::IFREG | mode, uid, gid);
 
-		auto* inode_ptr = new ProcROInode(callback, fs, inode_info);
+		auto* inode_ptr = new ProcROInode(callback, fs, argument, inode_info);
 		if (inode_ptr == nullptr)
 			return BAN::Error::from_errno(ENOMEM);
 		return BAN::RefPtr<ProcROInode>::adopt(inode_ptr);
 	}
 
-	ProcROInode::ProcROInode(size_t (*callback)(off_t, BAN::ByteSpan), TmpFileSystem& fs, const TmpInodeInfo& inode_info)
+	ProcROInode::ProcROInode(BAN::ErrorOr<size_t> (*callback)(off_t, BAN::ByteSpan, void*), TmpFileSystem& fs, void* argument, const TmpInodeInfo& inode_info)
 		: TmpInode(fs, MUST(fs.allocate_inode(inode_info)), inode_info)
 		, m_callback(callback)
+		, m_argument(argument)
 	{
 		m_mode |= Inode::Mode::IFREG;
 	}
@@ -116,7 +117,7 @@ namespace Kernel
 	{
 		if (offset < 0)
 			return BAN::Error::from_errno(EINVAL);
-		return m_callback(offset, buffer);
+		return TRY(m_callback(offset, buffer, m_argument));
 	}
 
 	BAN::ErrorOr<BAN::RefPtr<ProcSymlinkInode>> ProcSymlinkInode::create_new(BAN::ErrorOr<BAN::String> (*callback)(void*), void (*destructor)(void*), void* data, TmpFileSystem& fs, mode_t mode, uid_t uid, gid_t gid)

kernel/kernel/FS/VirtualFileSystem.cpp

@@ -210,14 +210,14 @@ namespace Kernel
 		if (!file.inode->mode().ifdir())
 			return BAN::Error::from_errno(ENOTDIR);
 
-		LockGuard _(m_mutex);
+		LockGuard _(m_mount_point_lock);
 		TRY(m_mount_points.emplace_back(file_system, BAN::move(file)));
 		return {};
 	}
 
 	VirtualFileSystem::MountPoint* VirtualFileSystem::mount_from_host_inode(BAN::RefPtr<Inode> inode)
 	{
-		LockGuard _(m_mutex);
+		LockGuard _(m_mount_point_lock);
 		for (MountPoint& mount : m_mount_points)
 			if (*mount.host.inode == *inode)
 				return &mount;
@@ -226,53 +226,52 @@ namespace Kernel
 
 	VirtualFileSystem::MountPoint* VirtualFileSystem::mount_from_root_inode(BAN::RefPtr<Inode> inode)
 	{
-		LockGuard _(m_mutex);
+		LockGuard _(m_mount_point_lock);
 		for (MountPoint& mount : m_mount_points)
 			if (*mount.target->root_inode() == *inode)
 				return &mount;
 		return nullptr;
 	}
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wstack-usage="
 	BAN::ErrorOr<VirtualFileSystem::File> VirtualFileSystem::file_from_relative_path(BAN::RefPtr<Inode> root_inode, const File& parent, const Credentials& credentials, BAN::StringView path, int flags)
 	{
-		LockGuard _(m_mutex);
-
 		auto inode = parent.inode;
 		ASSERT(inode);
 
-		BAN::String canonical_path;
-		TRY(canonical_path.append(parent.canonical_path));
-		if (!canonical_path.empty() && canonical_path.back() == '/')
-			canonical_path.pop_back();
-		ASSERT(canonical_path.empty() || canonical_path.back() != '/');
+		char canonical_buf[PATH_MAX];
+		size_t canonical_len = parent.canonical_path.size();
+		if (!parent.canonical_path.empty() && parent.canonical_path.back() == '/')
+			canonical_len--;
+		memcpy(canonical_buf, parent.canonical_path.data(), canonical_len);
+		ASSERT(canonical_len == 0 || canonical_buf[canonical_len - 1] != '/');
 
-		BAN::Vector<BAN::String> path_parts;
-
-		const auto append_string_view_in_reverse =
-			[&path_parts](BAN::StringView path) -> BAN::ErrorOr<void>
-			{
-				auto split_path = TRY(path.split('/'));
-				TRY(path_parts.reserve(path_parts.size() + split_path.size()));
-				for (size_t i = split_path.size(); i > 0; i--)
-				{
-					TRY(path_parts.emplace_back());
-					TRY(path_parts.back().append(split_path[i - 1]));
-				}
-				return {};
-			};
-		TRY(append_string_view_in_reverse(path));
+		char path_storage[PATH_MAX];
 
 		size_t link_depth = 0;
-
-		while (!path_parts.empty())
+		for (;;)
 		{
-			BAN::String path_part = BAN::move(path_parts.back());
-			path_parts.pop_back();
+			const auto path_part = [&path] {
+				size_t off = 0;
+				while (off < path.size() && path[off] == '/')
+					off++;
 
-			if (path_part.empty() || path_part == "."_sv)
+				size_t len = 0;
+				while (off + len < path.size() && path[off + len] != '/')
+					len++;
+
+				const auto result = path.substring(off, len);
+				path = path.substring(off + len);
+				return result;
+			}();
+
+			if (path_part.empty())
+				break;
+			if (path_part == "."_sv)
 				continue;
 
-			auto orig = inode;
+			auto orig_inode = inode;
 
 			// resolve file name
 			{
@@ -289,26 +288,26 @@ namespace Kernel
 
 				if (path_part == ".."_sv)
 				{
-					if (!canonical_path.empty())
-					{
-						ASSERT(canonical_path.front() == '/');
-						while (canonical_path.back() != '/')
-							canonical_path.pop_back();
-						canonical_path.pop_back();
-					}
+					while (canonical_len && canonical_buf[canonical_len - 1] != '/')
+						canonical_len--;
+					if (canonical_len)
+						canonical_len--;
 				}
 				else
 				{
 					if (auto* mount_point = mount_from_host_inode(inode))
 						inode = mount_point->target->root_inode();
-					TRY(canonical_path.push_back('/'));
-					TRY(canonical_path.append(path_part));
+					if (canonical_len + 1 + path_part.size() > sizeof(canonical_buf))
+						return BAN::Error::from_errno(ENAMETOOLONG);
+					canonical_buf[canonical_len++] = '/';
+					memcpy(canonical_buf + canonical_len, path_part.data(), path_part.size());
+					canonical_len += path_part.size();
 				}
 			}
 
 			if (!inode->mode().iflnk())
 				continue;
-			if ((flags & O_NOFOLLOW) && path_parts.empty())
+			if ((flags & O_NOFOLLOW) && !path.find([](char ch) { return ch != '/'; }).has_value())
 				continue;
 
 			// resolve symbolic links
@@ -320,21 +319,26 @@ namespace Kernel
 				if (link_target.front() == '/')
 				{
 					inode = root_inode;
-					canonical_path.clear();
+					canonical_len = 0;
 				}
 				else
 				{
-					inode = orig;
+					inode = orig_inode;
 
-					while (canonical_path.back() != '/')
-						canonical_path.pop_back();
-					canonical_path.pop_back();
+					while (canonical_len && canonical_buf[canonical_len - 1] != '/')
+						canonical_len--;
+					if (canonical_len)
+						canonical_len--;
 				}
 
-				TRY(append_string_view_in_reverse(link_target.sv()));
+				if (link_target.size() + path.size() > sizeof(path_storage))
+					return BAN::Error::from_errno(ENAMETOOLONG);
+				memcpy(path_storage, link_target.data(), link_target.size());
+				memcpy(path_storage + link_target.size(), path.data(), path.size());
+				path = BAN::StringView(path_storage, link_target.size() + path.size());
 
 				link_depth++;
-				if (link_depth > 100)
+				if (link_depth > SYMLOOP_MAX)
 					return BAN::Error::from_errno(ELOOP);
 			}
 		}
@@ -342,17 +346,14 @@ namespace Kernel
 		if (!inode->can_access(credentials, flags))
 			return BAN::Error::from_errno(EACCES);
 
-		if (canonical_path.empty())
-			TRY(canonical_path.push_back('/'));
+		if (canonical_len == 0)
+			canonical_buf[canonical_len++] = '/';
 
-		File file;
-		file.inode = inode;
-		file.canonical_path = BAN::move(canonical_path);
+		BAN::String canonical_path;
+		TRY(canonical_path.append(BAN::StringView(canonical_buf, canonical_len)));
 
-		if (file.canonical_path.empty())
-			TRY(file.canonical_path.push_back('/'));
-
-		return file;
+		return File(BAN::move(inode), BAN::move(canonical_path));
 	}
+#pragma GCC diagnostic pop
 
 }

kernel/kernel/IDT.cpp

@@ -256,6 +256,18 @@ namespace Kernel
 
 				break;
 			}
+			case ISR::GeneralProtectionFault:
+			{
+				const uint8_t* ip = reinterpret_cast<const uint8_t*>(interrupt_stack->ip);
+				for (const auto& safe_user : s_safe_user_page_faults)
+				{
+					if (ip < safe_user.ip_start || ip >= safe_user.ip_end)
+						continue;
+					interrupt_stack->ip = reinterpret_cast<vaddr_t>(safe_user.ip_fault);
+					return;
+				}
+				break;
+			}
 			case ISR::DeviceNotAvailable:
 			{
 				if (pid == 0 || !Thread::current().is_userspace())

kernel/kernel/Input/InputDevice.cpp

@@ -197,9 +197,6 @@ namespace Kernel
 					}
 					else switch (key_event.keycode)
 					{
-						case LibInput::keycode_function(1):
-							Processor::toggle_should_print_cpu_load();
-							break;
 						case LibInput::keycode_function(11):
 							DevFileSystem::get().initiate_disk_cache_drop();
 							break;

kernel/kernel/Memory/FileBackedRegion.cpp

@@ -93,7 +93,7 @@ namespace Kernel
 
 	void SharedFileData::sync_no_lock(size_t page_index)
 	{
-		if (pages[page_index] == 0 || BAN::atomic_load(writers[page_index]) == 0)
+		if (pages[page_index] == 0 || BAN::atomic_load(writers[page_index]) > 0)
 			return;
 
 		uint8_t page_buffer[PAGE_SIZE];
@@ -108,8 +108,9 @@ namespace Kernel
 
 	BAN::ErrorOr<void> FileBackedRegion::msync(vaddr_t address, size_t size, int flags)
 	{
-		if (flags != MS_SYNC)
-			dprintln("async file backed mmap msync");
+		// TODO: maybe do something with the flags :)
+		(void)flags;
+
 		if (m_type != Type::SHARED)
 			return {};
 

kernel/kernel/Networking/NetworkInterface.cpp

@@ -3,6 +3,8 @@
 #include <kernel/FS/DevFS/FileSystem.h>
 #include <kernel/Networking/NetworkInterface.h>
 
+#include <netinet/in.h>
+#include <net/if.h>
 #include <sys/sysmacros.h>
 #include <string.h>
 
@@ -25,7 +27,7 @@ namespace Kernel
 	}
 
 	NetworkInterface::NetworkInterface(Type type)
-		: CharacterDevice(0400, 0, 0)
+		: CharacterDevice(0664, 0, 0)
 		, m_type(type)
 	{
 		m_rdev = get_rdev(type);
@@ -43,4 +45,95 @@ namespace Kernel
 		}
 	}
 
+	BAN::ErrorOr<long> NetworkInterface::ioctl_impl(int request, void* arg)
+	{
+		if (arg == nullptr)
+		{
+			dprintln("No argument provided");
+			return BAN::Error::from_errno(EINVAL);
+		}
+
+		auto* ifreq = reinterpret_cast<struct ifreq*>(arg);
+
+		switch (request)
+		{
+			case SIOCGIFADDR:
+			{
+				auto& ifru_addr = *reinterpret_cast<sockaddr_in*>(&ifreq->ifr_ifru.ifru_addr);
+				ifru_addr.sin_family = AF_INET;
+				ifru_addr.sin_addr.s_addr = get_ipv4_address().raw;
+				return 0;
+			}
+			case SIOCSIFADDR:
+			{
+				auto& ifru_addr = *reinterpret_cast<const sockaddr_in*>(&ifreq->ifr_ifru.ifru_addr);
+				if (ifru_addr.sin_family != AF_INET)
+					return BAN::Error::from_errno(EADDRNOTAVAIL);
+				set_ipv4_address(BAN::IPv4Address { ifru_addr.sin_addr.s_addr });
+				dprintln("IPv4 address set to {}", get_ipv4_address());
+				return 0;
+			}
+			case SIOCGIFNETMASK:
+			{
+				auto& ifru_netmask = *reinterpret_cast<sockaddr_in*>(&ifreq->ifr_ifru.ifru_netmask);
+				ifru_netmask.sin_family = AF_INET;
+				ifru_netmask.sin_addr.s_addr = get_netmask().raw;
+				return 0;
+			}
+			case SIOCSIFNETMASK:
+			{
+				auto& ifru_netmask = *reinterpret_cast<const sockaddr_in*>(&ifreq->ifr_ifru.ifru_netmask);
+				if (ifru_netmask.sin_family != AF_INET)
+					return BAN::Error::from_errno(EADDRNOTAVAIL);
+				set_netmask(BAN::IPv4Address { ifru_netmask.sin_addr.s_addr });
+				dprintln("Netmask set to {}", get_netmask());
+				return 0;
+			}
+			case SIOCGIFGWADDR:
+			{
+				auto& ifru_gwaddr = *reinterpret_cast<sockaddr_in*>(&ifreq->ifr_ifru.ifru_gwaddr);
+				ifru_gwaddr.sin_family = AF_INET;
+				ifru_gwaddr.sin_addr.s_addr = get_gateway().raw;
+				return 0;
+			}
+			case SIOCSIFGWADDR:
+			{
+				auto& ifru_gwaddr = *reinterpret_cast<const sockaddr_in*>(&ifreq->ifr_ifru.ifru_gwaddr);
+				if (ifru_gwaddr.sin_family != AF_INET)
+					return BAN::Error::from_errno(EADDRNOTAVAIL);
+				set_gateway(BAN::IPv4Address { ifru_gwaddr.sin_addr.s_addr });
+				dprintln("Gateway set to {}", get_gateway());
+				return 0;
+			}
+			case SIOCGIFHWADDR:
+			{
+				auto mac_address = get_mac_address();
+				ifreq->ifr_ifru.ifru_hwaddr.sa_family = AF_INET;
+				memcpy(ifreq->ifr_ifru.ifru_hwaddr.sa_data, &mac_address, sizeof(mac_address));
+				return 0;
+			}
+			case SIOCGIFNAME:
+			{
+				auto& ifrn_name = ifreq->ifr_ifrn.ifrn_name;
+				ASSERT(name().size() < sizeof(ifrn_name));
+				memcpy(ifrn_name, name().data(), name().size());
+				ifrn_name[name().size()] = '\0';
+				return 0;
+			}
+			case SIOCGIFFLAGS:
+			{
+				int flags = 0;
+				if (link_up())
+					flags |= IFF_UP | IFF_RUNNING;
+				if (m_type == Type::Loopback)
+					flags |= IFF_LOOPBACK;
+				ifreq->ifr_ifru.ifru_flags = flags;
+				return 0;
+			}
+		}
+
+		return CharacterDevice::ioctl_impl(request, arg);
+	}
+
+
 }

kernel/kernel/Networking/NetworkSocket.cpp

@@ -110,83 +110,20 @@ namespace Kernel
 
 	BAN::ErrorOr<long> NetworkSocket::ioctl_impl(int request, void* arg)
 	{
-		if (!arg)
-		{
-			dprintln("No argument provided");
-			return BAN::Error::from_errno(EINVAL);
-		}
-
-		auto interface = TRY(this->interface(nullptr, 0));
-		auto* ifreq = reinterpret_cast<struct ifreq*>(arg);
-
 		switch (request)
 		{
 			case SIOCGIFADDR:
-			{
-				auto& ifru_addr = *reinterpret_cast<sockaddr_in*>(&ifreq->ifr_ifru.ifru_addr);
-				ifru_addr.sin_family = AF_INET;
-				ifru_addr.sin_addr.s_addr = interface->get_ipv4_address().raw;
-				return 0;
-			}
 			case SIOCSIFADDR:
-			{
-				auto& ifru_addr = *reinterpret_cast<const sockaddr_in*>(&ifreq->ifr_ifru.ifru_addr);
-				if (ifru_addr.sin_family != AF_INET)
-					return BAN::Error::from_errno(EADDRNOTAVAIL);
-				interface->set_ipv4_address(BAN::IPv4Address { ifru_addr.sin_addr.s_addr });
-				dprintln("IPv4 address set to {}", interface->get_ipv4_address());
-				return 0;
-			}
 			case SIOCGIFNETMASK:
-			{
-				auto& ifru_netmask = *reinterpret_cast<sockaddr_in*>(&ifreq->ifr_ifru.ifru_netmask);
-				ifru_netmask.sin_family = AF_INET;
-				ifru_netmask.sin_addr.s_addr = interface->get_netmask().raw;
-				return 0;
-			}
 			case SIOCSIFNETMASK:
-			{
-				auto& ifru_netmask = *reinterpret_cast<const sockaddr_in*>(&ifreq->ifr_ifru.ifru_netmask);
-				if (ifru_netmask.sin_family != AF_INET)
-					return BAN::Error::from_errno(EADDRNOTAVAIL);
-				interface->set_netmask(BAN::IPv4Address { ifru_netmask.sin_addr.s_addr });
-				dprintln("Netmask set to {}", interface->get_netmask());
-				return 0;
-			}
 			case SIOCGIFGWADDR:
-			{
-				auto& ifru_gwaddr = *reinterpret_cast<sockaddr_in*>(&ifreq->ifr_ifru.ifru_gwaddr);
-				ifru_gwaddr.sin_family = AF_INET;
-				ifru_gwaddr.sin_addr.s_addr = interface->get_gateway().raw;
-				return 0;
-			}
 			case SIOCSIFGWADDR:
-			{
-				auto& ifru_gwaddr = *reinterpret_cast<const sockaddr_in*>(&ifreq->ifr_ifru.ifru_gwaddr);
-				if (ifru_gwaddr.sin_family != AF_INET)
-					return BAN::Error::from_errno(EADDRNOTAVAIL);
-				interface->set_gateway(BAN::IPv4Address { ifru_gwaddr.sin_addr.s_addr });
-				dprintln("Gateway set to {}", interface->get_gateway());
-				return 0;
-			}
 			case SIOCGIFHWADDR:
-			{
-				auto mac_address = interface->get_mac_address();
-				ifreq->ifr_ifru.ifru_hwaddr.sa_family = AF_INET;
-				memcpy(ifreq->ifr_ifru.ifru_hwaddr.sa_data, &mac_address, sizeof(mac_address));
-				return 0;
-			}
 			case SIOCGIFNAME:
-			{
-				auto& ifrn_name = ifreq->ifr_ifrn.ifrn_name;
-				ASSERT(interface->name().size() < sizeof(ifrn_name));
-				memcpy(ifrn_name, interface->name().data(), interface->name().size());
-				ifrn_name[interface->name().size()] = '\0';
-				return 0;
-			}
-			default:
-				return BAN::Error::from_errno(EINVAL);
+				return TRY(interface(nullptr, 0))->ioctl(request, arg);
 		}
+
+		return Socket::ioctl_impl(request, arg);
 	}
 
 	BAN::ErrorOr<void> NetworkSocket::getsockname_impl(sockaddr* address, socklen_t* address_len)

kernel/kernel/OpenFileDescriptorSet.cpp

@@ -853,6 +853,15 @@ namespace Kernel
 		return inode->sendmsg(message, flags | (is_nonblock ? MSG_DONTWAIT : 0));
 	}
 
+	int OpenFileDescriptorSet::get_max_open_fd() const
+	{
+		LockGuard _(m_mutex);
+		for (int fd = m_open_files.size() - 1; fd > 0; fd--)
+			if (m_open_files[fd])
+				return fd;
+		return -1;
+	}
+
 	BAN::ErrorOr<VirtualFileSystem::File> OpenFileDescriptorSet::file_of(int fd) const
 	{
 		LockGuard _(m_mutex);

kernel/kernel/Process.cpp

@@ -1862,25 +1862,22 @@ namespace Kernel
 		sys_pselect_t arguments;
 		TRY(read_from_user(user_arguments, &arguments, sizeof(sys_pselect_t)));
 
-		MemoryRegion* readfd_region = nullptr;
-		MemoryRegion* writefd_region = nullptr;
-		MemoryRegion* errorfd_region = nullptr;
+		const int max_nfds = BAN::Math::min(m_open_file_descriptors.get_max_open_fd(), FD_SETSIZE) + 1;
+		if (arguments.nfds > max_nfds)
+			arguments.nfds = max_nfds;
 
-		BAN::ScopeGuard _([&] {
-			if (readfd_region)
-				readfd_region->unpin();
-			if (writefd_region)
-				writefd_region->unpin();
-			if (errorfd_region)
-				errorfd_region->unpin();
-		});
+		const auto init_fd_set = [](fd_set* user, fd_set* target) -> BAN::ErrorOr<void> {
+			if (user == nullptr)
+				FD_ZERO(target);
+			else
+				TRY(read_from_user(user, target, sizeof(fd_set)));
+			return {};
+		};
 
-		if (arguments.readfds)
-			readfd_region = TRY(validate_and_pin_pointer_access(arguments.readfds, sizeof(fd_set), true));
-		if (arguments.writefds)
-			writefd_region = TRY(validate_and_pin_pointer_access(arguments.writefds, sizeof(fd_set), true));
-		if (arguments.errorfds)
-			errorfd_region = TRY(validate_and_pin_pointer_access(arguments.errorfds, sizeof(fd_set), true));
+		fd_set rfds, wfds, efds;
+		TRY(init_fd_set(arguments.readfds,  &rfds));
+		TRY(init_fd_set(arguments.writefds, &wfds));
+		TRY(init_fd_set(arguments.errorfds, &efds));
 
 		const auto old_sigmask = Thread::current().m_signal_block_mask;
 		if (arguments.sigmask)
@@ -1902,36 +1899,39 @@ namespace Kernel
 				timeout.tv_nsec;
 		}
 
+		fd_set ret_rfds, ret_wfds, ret_efds;
+		FD_ZERO(&ret_rfds);
+		FD_ZERO(&ret_wfds);
+		FD_ZERO(&ret_efds);
+
 		{
-			fd_set rfds, wfds, efds;
-			FD_ZERO(&rfds);
-			FD_ZERO(&wfds);
-			FD_ZERO(&efds);
 
 			size_t return_value = 0;
 			for (int fd = 0; fd < arguments.nfds; fd++)
 			{
-				auto inode_or_error = m_open_file_descriptors.inode_of(fd);
-				if (inode_or_error.is_error())
+				const bool wantr = FD_ISSET(fd, &rfds);
+				const bool wantw = FD_ISSET(fd, &wfds);
+				const bool wante = FD_ISSET(fd, &efds);
+				if (!wantr && !wantw && !wante)
 					continue;
 
-				auto inode = inode_or_error.release_value();
-				if (arguments.readfds  && FD_ISSET(fd, arguments.readfds)  && inode->can_read())
-					{ FD_SET(fd, &rfds); return_value++; }
-				if (arguments.writefds && FD_ISSET(fd, arguments.writefds) && inode->can_write())
-					{ FD_SET(fd, &wfds); return_value++; }
-				if (arguments.errorfds && FD_ISSET(fd, arguments.errorfds) && inode->has_error())
-					{ FD_SET(fd, &efds); return_value++; }
+				auto inode = TRY(m_open_file_descriptors.inode_of(fd));
+				if (wantr && inode->can_read())
+					{ FD_SET(fd, &ret_rfds); return_value++; }
+				if (wantw && inode->can_write())
+					{ FD_SET(fd, &ret_wfds); return_value++; }
+				if (wante && inode->has_error())
+					{ FD_SET(fd, &ret_efds); return_value++; }
 			}
 
 			if (return_value || SystemTimer::get().ns_since_boot() >= waketime_ns)
 			{
 				if (arguments.readfds)
-					memcpy(arguments.readfds, &rfds, sizeof(fd_set));
+					TRY(write_to_user(arguments.readfds,  &ret_rfds, sizeof(fd_set)));
 				if (arguments.writefds)
-					memcpy(arguments.writefds, &wfds, sizeof(fd_set));
+					TRY(write_to_user(arguments.writefds, &ret_wfds, sizeof(fd_set)));
 				if (arguments.errorfds)
-					memcpy(arguments.errorfds, &efds, sizeof(fd_set));
+					TRY(write_to_user(arguments.errorfds, &ret_efds, sizeof(fd_set)));
 				return return_value;
 			}
 		}
@@ -1940,20 +1940,17 @@ namespace Kernel
 		for (int fd = 0; fd < arguments.nfds; fd++)
 		{
 			uint32_t events = 0;
-			if (arguments.readfds && FD_ISSET(fd, arguments.readfds))
+			if (FD_ISSET(fd, &rfds))
 				events |= EPOLLIN;
-			if (arguments.writefds && FD_ISSET(fd, arguments.writefds))
+			if (FD_ISSET(fd, &wfds))
 				events |= EPOLLOUT;
-			if (arguments.errorfds && FD_ISSET(fd, arguments.errorfds))
+			if (FD_ISSET(fd, &efds))
 				events |= EPOLLERR;
 			if (events == 0)
 				continue;
 
-			auto inode_or_error = m_open_file_descriptors.inode_of(fd);
-			if (inode_or_error.is_error())
-				continue;
-
-			TRY(epoll->ctl(EPOLL_CTL_ADD, fd, inode_or_error.release_value(), { .events = events, .data = { .fd = fd }}));
+			auto inode = TRY(m_open_file_descriptors.inode_of(fd));
+			TRY(epoll->ctl(EPOLL_CTL_ADD, fd, inode, { .events = events, .data = { .fd = fd }}));
 		}
 
 		BAN::Vector<epoll_event> event_buffer;
@@ -1961,25 +1958,24 @@ namespace Kernel
 
 		const size_t waited_events = TRY(epoll->wait(event_buffer.span(), waketime_ns));
 
-		if (arguments.readfds)
-			FD_ZERO(arguments.readfds);
-		if (arguments.writefds)
-			FD_ZERO(arguments.writefds);
-		if (arguments.errorfds)
-			FD_ZERO(arguments.errorfds);
-
 		size_t return_value = 0;
 		for (size_t i = 0; i < waited_events; i++)
 		{
 			const int fd = event_buffer[i].data.fd;
-			if (arguments.readfds && event_buffer[i].events & (EPOLLIN | EPOLLHUP))
-				{ FD_SET(fd, arguments.readfds);  return_value++; }
-			if (arguments.writefds && event_buffer[i].events & (EPOLLOUT))
-				{ FD_SET(fd, arguments.writefds); return_value++; }
-			if (arguments.errorfds && event_buffer[i].events & (EPOLLERR))
-				{ FD_SET(fd, arguments.errorfds); return_value++; }
+			if (FD_ISSET(fd, &rfds) && event_buffer[i].events & (EPOLLIN | EPOLLHUP))
+				{ FD_SET(fd, &ret_rfds); return_value++; }
+			if (FD_ISSET(fd, &wfds) && event_buffer[i].events & (EPOLLOUT))
+				{ FD_SET(fd, &ret_wfds); return_value++; }
+			if (FD_ISSET(fd, &efds) && event_buffer[i].events & (EPOLLERR))
+				{ FD_SET(fd, &ret_efds); return_value++; }
 		}
 
+		if (arguments.readfds)
+			TRY(write_to_user(arguments.readfds,  &ret_rfds, sizeof(fd_set)));
+		if (arguments.writefds)
+			TRY(write_to_user(arguments.writefds, &ret_wfds, sizeof(fd_set)));
+		if (arguments.errorfds)
+			TRY(write_to_user(arguments.errorfds, &ret_efds, sizeof(fd_set)));
 		return return_value;
 	}
 

kernel/kernel/Processor.cpp

@@ -23,7 +23,6 @@ namespace Kernel
 	ProcessorID          Processor::s_bsp_id                     { PROCESSOR_NONE };
 	BAN::Atomic<uint8_t> Processor::s_processor_count            { 0 };
 	BAN::Atomic<bool>    Processor::s_is_smp_enabled             { false };
-	BAN::Atomic<bool>    Processor::s_should_print_cpu_load      { false };
 	paddr_t              Processor::s_shared_page_paddr          { 0 };
 	vaddr_t              Processor::s_shared_page_vaddr          { 0 };
 
@@ -598,6 +597,26 @@ namespace Kernel
 		set_interrupt_state(state);
 	}
 
+	Processor::LoadStats Processor::get_load_stats(size_t index)
+	{
+		ASSERT(index < Processor::count());
+
+		auto& processor = s_processors[s_processor_ids[index].as_u32()];
+
+		bool expected = false;
+		while (!processor.m_load_stat_lock.compare_exchange(expected, true))
+		{
+			Processor::pause();
+			expected = false;
+		}
+
+		const auto load_stats = processor.m_load_stats;
+
+		processor.m_load_stat_lock.store(false);
+
+		return load_stats;
+	}
+
 	void Processor::yield()
 	{
 		auto state = get_interrupt_state();
@@ -605,47 +624,32 @@ namespace Kernel
 
 		ASSERT(!Thread::current().has_spinlock());
 
-		auto& processor_info = s_processors[current_id().as_u32()];
+		auto& processor = s_processors[current_id().as_u32()];
 
 		{
-			constexpr uint64_t load_update_interval_ns = 1'000'000'000;
-
-			const uint64_t current_ns = SystemTimer::get().ns_since_boot();
-
-			if (scheduler().is_idle())
-				processor_info.m_idle_ns += current_ns - processor_info.m_start_ns;
-
-			if (current_ns >= processor_info.m_next_update_ns)
+			bool expected = false;
+			while (!processor.m_load_stat_lock.compare_exchange(expected, true))
 			{
-				if (s_should_print_cpu_load && g_terminal_driver)
-				{
-					const uint64_t duration_ns = current_ns - processor_info.m_last_update_ns;
-					const uint64_t load_x1000  = 100'000 * (duration_ns - BAN::Math::min(processor_info.m_idle_ns, duration_ns)) / duration_ns;
-
-					uint32_t x = g_terminal_driver->width() - 16;
-					uint32_t y = current_id().as_u32();
-					const auto proc_putc =
-						[&x, y](char ch)
-						{
-							if (x < g_terminal_driver->width() && y < g_terminal_driver->height())
-								g_terminal_driver->putchar_at(ch, x++, y, TerminalColor::WHITE, TerminalColor::BLACK);
-						};
-
-					BAN::Formatter::print(proc_putc, "CPU { 2}: { 3}.{3}%", current_id(), load_x1000 / 1000, load_x1000 % 1000);
-				}
-
-				processor_info.m_idle_ns         = 0;
-				processor_info.m_last_update_ns  = current_ns;
-				processor_info.m_next_update_ns += load_update_interval_ns;
+				Processor::pause();
+				expected = false;
 			}
+
+			const uint64_t elapsed_ns = SystemTimer::get().ns_since_boot() - processor.m_load_start_ns;
+
+			auto& load_stats = processor.m_load_stats;
+			if (scheduler().is_idle())
+				load_stats.ns_idle += elapsed_ns;
+			load_stats.ns_total += elapsed_ns;
+
+			processor.m_load_stat_lock.store(false);
 		}
 
 		if (!scheduler().is_idle())
 			Thread::current().set_cpu_time_stop();
 
-		asm_yield_trampoline(processor_info.stack_top_vaddr());
+		asm_yield_trampoline(processor.stack_top_vaddr());
 
-		processor_info.m_start_ns = SystemTimer::get().ns_since_boot();
+		processor.m_load_start_ns = SystemTimer::get().ns_since_boot();
 
 		if (!scheduler().is_idle())
 			Thread::current().set_cpu_time_start();

kernel/kernel/Storage/DiskCache.cpp

@@ -1,5 +1,6 @@
 #include <BAN/ScopeGuard.h>
 #include <kernel/BootInfo.h>
+#include <kernel/Lock/LockGuard.h>
 #include <kernel/Memory/Heap.h>
 #include <kernel/Memory/PageTable.h>
 #include <kernel/Storage/DiskCache.h>

kernel/kernel/Thread.cpp

@@ -10,10 +10,14 @@
 #include <kernel/Thread.h>
 #include <kernel/Timer/Timer.h>
 #include <kernel/UserCopy.h>
+#include <sys/syscall.h>
 
 namespace Kernel
 {
 
+	static_assert(SYS_SIGPROCMASK == 79, "this is hard coded in arch/*/Signal.S");
+	static_assert(SIG_SETMASK     ==  3, "this is hard coded in arch/*/Signal.S");
+
 #if ARCH(x86_64)
 	static constexpr vaddr_t s_user_stack_addr_start = 0x0000700000000000;
 #elif ARCH(i686)
@@ -582,9 +586,15 @@ namespace Kernel
 		const uint64_t full_pending_mask = m_signal_pending_mask | process().signal_pending_mask();
 		const uint64_t signals = full_pending_mask & ~m_signal_block_mask;
 		for (size_t sig = _SIGMIN; sig <= _SIGMAX; sig++)
-			if (signals & (static_cast<uint64_t>(1) << sig))
-				if (is_terminating_signal(sig) || is_abnormal_terminating_signal(sig))
-					return true;
+		{
+			if (!(signals & (static_cast<uint64_t>(1) << sig)))
+				continue;
+			if (!is_terminating_signal(sig) && !is_abnormal_terminating_signal(sig))
+				continue;
+			SpinLockGuard _(m_process->m_signal_lock);
+			if (m_process->m_signal_handlers[sig].sa_handler == SIG_DFL)
+				return true;
+		}
 		return false;
 	}
 

kernel/kernel/kernel.cpp

@@ -211,6 +211,8 @@ static void init2(void*)
 
 	SystemTimer::get().initialize_tsc();
 
+	ProcFileSystem::get().post_scheduler_initialize();
+
 	auto console = MUST(DevFileSystem::get().root_inode()->find_inode(cmdline.console));
 	ASSERT(console->is_tty());
 	static_cast<Kernel::TTY*>(console.ptr())->set_as_current();

ports/SDL2/build.sh

@@ -20,5 +20,5 @@ build() {
 }
 
 install() {
-	cmake --install build || exit 1
+	DESTDIR="$DESTDIR" cmake --install build || exit 1
 }

ports/SDL2_image/build.sh

@@ -19,5 +19,5 @@ build() {
 }
 
 install() {
-	cmake --install build || exit 1
+	DESTDIR="$DESTDIR" cmake --install build || exit 1
 }

ports/SDL2_mixer/build.sh

@@ -23,5 +23,5 @@ build() {
 }
 
 install() {
-	cmake --install build || exit 1
+	DESTDIR="$DESTDIR" cmake --install build || exit 1
 }

ports/SpecSeek/build.sh

@@ -19,5 +19,5 @@ build() {
 }
 
 install() {
-	cp -v bin/gcc/$specseek_arch/specseek_$specseek_arch "$BANAN_SYSROOT/usr/bin/specseek" || exit 1
+	cp -v bin/gcc/$specseek_arch/specseek_$specseek_arch "$DESTDIR/usr/bin/specseek" || exit 1
 }

ports/SuperTux/build.sh

@@ -24,5 +24,5 @@ build() {
 }
 
 install() {
-	cmake --install build || exit 1
+	DESTDIR="$DESTDIR" cmake --install build || exit 1
 }

ports/SuperTuxKart/build.sh

@@ -24,5 +24,5 @@ build() {
 }
 
 install() {
-	cmake --install build || exit 1
+	DESTDIR="$DESTDIR" cmake --install build || exit 1
 }

ports/bash/build.sh

@@ -16,7 +16,7 @@ CONFIGURE_OPTIONS=(
 )
 
 post_install() {
-	if [ ! -L $BANAN_SYSROOT/usr/bin/sh ]; then
-		ln -s bash $BANAN_SYSROOT/usr/bin/sh
+	if [ ! -L $DESTDIR/usr/bin/sh ]; then
+		ln -s bash $DESTDIR/usr/bin/sh
 	fi
 }

ports/bzip2/build.sh

@@ -13,14 +13,16 @@ build() {
 }
 
 install() {
-	cp -v libbz2.so.$VERSION $BANAN_SYSROOT/usr/lib/ || exit 1
-	ln -svf libbz2.so.$VERSION $BANAN_SYSROOT/usr/lib/libbz2.so || exit 1
-	ln -svf libbz2.so.$VERSION $BANAN_SYSROOT/usr/lib/libbz2.so.1 || exit 1
-	ln -svf libbz2.so.$VERSION $BANAN_SYSROOT/usr/lib/libbz2.so.1.0 || exit 1
+	mkdir -p "$DESTDIR/usr/lib"
+	cp -v   libbz2.so.$VERSION "$DESTDIR/usr/lib/" || exit 1
+	ln -svf libbz2.so.$VERSION "$DESTDIR/usr/lib/libbz2.so"     || exit 1
+	ln -svf libbz2.so.$VERSION "$DESTDIR/usr/lib/libbz2.so.1"   || exit 1
+	ln -svf libbz2.so.$VERSION "$DESTDIR/usr/lib/libbz2.so.1.0" || exit 1
 
-	cp -v bzlib.h $BANAN_SYSROOT/usr/include/ || exit 1
+	mkdir -p "$DESTDIR/usr/include"
+	cp -v bzlib.h "$DESTDIR/usr/include/" || exit 1
 
-	cat > $BANAN_SYSROOT/usr/lib/pkgconfig/bzip2.pc << EOF
+	cat > $DESTDIR/usr/lib/pkgconfig/bzip2.pc << EOF
 prefix=/usr
 exec_prefix=\${prefix}
 bindir=\${exec_prefix}/bin

ports/ca-certificates/build.sh

@@ -13,10 +13,10 @@ build() {
 }
 
 install() {
-	rm -rf "$BANAN_SYSROOT/etc/cacert/extracted"
-	mkdir -p "$BANAN_SYSROOT/etc/cacert/extracted"
+	rm -rf "$DESTDIR/etc/cacert/extracted"
+	mkdir -p "$DESTDIR/etc/cacert/extracted"
 
-	cp -vf "../cacert-${VERSION//./-}.pem" "$BANAN_SYSROOT/etc/cacert/cacert.pem"
+	cp -vf "../cacert-${VERSION//./-}.pem" "$DESTDIR/etc/cacert/cacert.pem"
 	awk '/-----BEGIN CERTIFICATE-----/ {c=1;n++} c {print > sprintf("cert%03d.pem", n)} /-----END CERTIFICATE-----/ {c=0}' "../cacert-${VERSION//./-}.pem"
-	mv cert*.pem "$BANAN_SYSROOT/etc/cacert/extracted/"
+	mv cert*.pem "$DESTDIR/etc/cacert/extracted/"
 }

ports/cairo/build.sh

@@ -22,5 +22,5 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 }

ports/cmake/build.sh

@@ -21,6 +21,6 @@ build() {
 }
 
 install() {
-	cmake --install build || exit 1
-	cp $BANAN_TOOLCHAIN_DIR/cmake-platform/* $BANAN_SYSROOT/usr/share/cmake-3.26/Modules/Platform/
+	DESTDIR="$DESTDIR" cmake --install build || exit 1
+	cp $BANAN_TOOLCHAIN_DIR/cmake-platform/* $DESTDIR/usr/share/cmake-3.26/Modules/Platform/
 }

ports/dbus/build.sh

@@ -25,5 +25,5 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 }

ports/doom/build.sh

@@ -18,6 +18,9 @@ build() {
 }
 
 install() {
-	cp doomgeneric/doomgeneric "${BANAN_SYSROOT}/bin/doom" || exit 1
-	cp ../doom1.wad "$BANAN_SYSROOT/home/user/" || exit 1
+	mkdir -p "$DESTDIR/usr/bin"
+	cp -vf doomgeneric/doomgeneric "$DESTDIR/usr/bin/doom"
+
+	mkdir -p "$DESTDIR/home/user"
+	cp -vf ../doom1.wad "$DESTDIR/home/user/"
 }

ports/ffmpeg/build.sh

@@ -3,7 +3,7 @@
 NAME='ffmpeg'
 VERSION='8.0.1'
 DOWNLOAD_URL="https://ffmpeg.org/releases/ffmpeg-$VERSION.tar.xz#05ee0b03119b45c0bdb4df654b96802e909e0a752f72e4fe3794f487229e5a41"
-DEPENDENCIES=('SDL2')
+DEPENDENCIES=('SDL2' 'openssl')
 CONFIGURE_OPTIONS=(
 	'--prefix=/usr'
 	'--target-os=none'
@@ -13,6 +13,8 @@ CONFIGURE_OPTIONS=(
 	'--enable-cross-compile'
 	'--enable-shared'
 	'--enable-gpl'
+	'--enable-version3'
+	'--enable-openssl'
 )
 
 configure() {

ports/fontconfig/build.sh

@@ -23,7 +23,7 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 }
 
 post_install() {
@@ -39,9 +39,9 @@ post_install() {
 		tar xf "$font_name.tar.bz2" || exit 1
 	fi
 
-	mkdir -p "$BANAN_SYSROOT/usr/share/fonts/TTF" || exit 1
-	cp "$font_name/ttf/"* "$BANAN_SYSROOT/usr/share/fonts/TTF/" || exit 1
-	cp "$font_name/fontconfig/"* "$BANAN_SYSROOT/usr/share/fontconfig/conf.avail/" || exit 1
+	mkdir -p "$DESTDIR/usr/share/fonts/TTF" || exit 1
+	cp "$font_name/ttf/"* "$DESTDIR/usr/share/fonts/TTF/" || exit 1
+	cp "$font_name/fontconfig/"* "$DESTDIR/usr/share/fontconfig/conf.avail/" || exit 1
 
 	popd &>/dev/null
 }

ports/gdk-pixbuf/build.sh

@@ -23,5 +23,5 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 }

ports/glib/build.sh

@@ -22,5 +22,5 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 }

ports/glm/build.sh

@@ -18,5 +18,5 @@ build() {
 }
 
 install() {
-	cmake --install build || exit 1
+	DESTDIR="$DESTDIR" cmake --install build || exit 1
 }

ports/glu/build.sh

@@ -17,5 +17,5 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 }

ports/gtk3/build.sh

@@ -3,7 +3,7 @@
 NAME='gtk'
 VERSION='3.24.49'
 DOWNLOAD_URL="https://gitlab.gnome.org/GNOME/gtk/-/archive/$VERSION/gtk-$VERSION.tar.gz#a2958d82986c81794e953a3762335fa7c78948706d23cced421f7245ca544cbc"
-DEPENDENCIES=('glib' 'gdk-pixbuf' 'pango' 'libatk' 'libepoxy' 'libXrandr')
+DEPENDENCIES=('glib' 'gdk-pixbuf' 'pango' 'libatk' 'libepoxy' 'libXrandr' 'libXcursor' 'libXinerama')
 CONFIGURE_OPTIONS=(
 	'-Dprefix=/usr'
 	'-Dtests=false'
@@ -26,5 +26,5 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 }

ports/halflife/build.sh

@@ -14,5 +14,5 @@ build() {
 }
 
 install() {
-    ./waf install --destdir=$BANAN_SYSROOT/home/user/halflife || exit 1
+	./waf install --destdir="$DESTDIR/home/user/halflife" || exit 1
 }

ports/harfbuzz/build.sh

@@ -3,7 +3,7 @@
 NAME='harfbuzz'
 VERSION='12.2.0'
 DOWNLOAD_URL="https://github.com/harfbuzz/harfbuzz/releases/download/$VERSION/harfbuzz-$VERSION.tar.xz#ecb603aa426a8b24665718667bda64a84c1504db7454ee4cadbd362eea64e545"
-DEPENDENCIES=('glib' 'freetype')
+DEPENDENCIES=('glib' 'freetype' 'icu')
 CONFIGURE_OPTIONS=(
 	'-Dprefix=/usr'
 	'-Dtests=disabled'
@@ -23,7 +23,7 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 }
 
 post_install() {

ports/icu/build.sh

@@ -4,7 +4,6 @@ NAME='icu'
 VERSION='78.1'
 DOWNLOAD_URL="https://github.com/unicode-org/icu/releases/download/release-$VERSION/icu4c-$VERSION-sources.tgz#6217f58ca39b23127605cfc6c7e0d3475fe4b0d63157011383d716cb41617886"
 TAR_CONTENT='icu'
-_DEPENDENCIES=('ca-certificates' 'openssl' 'zlib' 'zstd')
 CONFIG_SUB=('source/config.sub')
 CONFIGURE_OPTIONS=(
 	"--with-cross-build=$BANAN_PORT_DIR/icu/icu-$VERSION-$BANAN_ARCH/source/build-host"

ports/install.sh

@@ -43,8 +43,10 @@ export MESON_CROSS_FILE="$BANAN_PORT_DIR/$BANAN_ARCH-banan_os-meson.txt"
 if [ ! -f "$MESON_CROSS_FILE" ] || [ "$MESON_CROSS_FILE" -ot "$BANAN_TOOLCHAIN_DIR/meson-cross-file.in" ]; then
 	cp "$BANAN_TOOLCHAIN_DIR/meson-cross-file.in" "$MESON_CROSS_FILE"
 	sed -i "s|ARCH|$BANAN_ARCH|" "$MESON_CROSS_FILE"
-	sed -i "s|CMAKE|$BANAN_CMAKE|" "$MESON_CROSS_FILE"
 	sed -i "s|SYSROOT|$BANAN_SYSROOT|" "$MESON_CROSS_FILE"
+	sed -i "s|PKG_CONFIG|$BANAN_PORT_DIR/pkg-config|" "$MESON_CROSS_FILE"
+	sed -i "s|CMAKE_BINARY|$BANAN_CMAKE|" "$MESON_CROSS_FILE"
+	sed -i "s|CMAKE_TOOLCHAIN|$BANAN_TOOLCHAIN_DIR/Toolchain.txt|" "$MESON_CROSS_FILE"
 fi
 
 MAKE_BUILD_TARGETS=('all')
@@ -250,6 +252,7 @@ if (( $needs_compile )); then
 	sha256sum "$BANAN_SYSROOT/usr/lib/libc.a" > "../.compile_hash"
 fi
 
+DESTDIR="$BANAN_SYSROOT"
 pre_install
 install
 grep -qsxF "$NAME-$VERSION" "$installed_file" || echo "$NAME-$VERSION" >> "$installed_file"

ports/libarchive/build.sh

@@ -19,5 +19,5 @@ build() {
 }
 
 install() {
-	cmake --install build || exit 1
+	DESTDIR="$DESTDIR" cmake --install build || exit 1
 }

ports/libatk/build.sh

@@ -22,5 +22,5 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 }

ports/libepoxy/build.sh

@@ -23,5 +23,5 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 }

ports/libffi/build.sh

@@ -4,3 +4,6 @@ NAME='libffi'
 VERSION='3.5.2'
 DOWNLOAD_URL="https://github.com/libffi/libffi/releases/download/v$VERSION/libffi-$VERSION.tar.gz#f3a3082a23b37c293a4fcd1053147b371f2ff91fa7ea1b2a52e335676bac82dc"
 CONFIG_SUB=('config.sub')
+CONFIGURE_OPTIONS=(
+	'--disable-static'
+)

ports/libsndfile/build.sh

@@ -3,7 +3,6 @@
 NAME='libsndfile'
 VERSION='1.2.2'
 DOWNLOAD_URL="https://github.com/libsndfile/libsndfile/releases/download/$VERSION/libsndfile-$VERSION.tar.xz#3799ca9924d3125038880367bf1468e53a1b7e3686a934f098b7e1d286cdb80e"
-_DEPENDENCIES=('ca-certificates' 'openssl' 'zlib' 'zstd')
 CONFIG_SUB=('build-aux/config.sub')
 CONFIGURE_OPTIONS=(
 	'CFLAGS=-std=c11'

ports/libuv/build.sh

@@ -18,5 +18,5 @@ build() {
 }
 
 install() {
-	cmake --install build || exit 1
+	DESTDIR="$DESTDIR" cmake --install build || exit 1
 }

ports/libxml2/build.sh

@@ -23,5 +23,5 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 }

ports/links/build.sh

@@ -3,7 +3,7 @@
 NAME='links'
 VERSION='2.30'
 DOWNLOAD_URL="http://links.twibright.com/download/links-$VERSION.tar.gz#7f0d54f4f7d1f094c25c9cbd657f98bc998311122563b1d757c9aeb1d3423b9e"
-DEPENDENCIES=('ca-certificates' 'openssl' 'zlib' 'zstd' 'libpng' 'libjpeg' 'libtiff' 'libwebp')
+DEPENDENCIES=('openssl' 'zlib' 'zstd' 'libpng' 'libjpeg' 'libtiff' 'libwebp')
 
 post_configure() {
 	config_defines=(
@@ -50,5 +50,6 @@ build() {
 }
 
 install() {
-	cp -v links "$BANAN_SYSROOT/usr/bin/" || exit 1
+	mkdir -p "$DESTDIR/usr/bin"
+	cp -v links "$DESTDIR/usr/bin/" || exit 1
 }

ports/lua/build.sh

@@ -13,5 +13,5 @@ build() {
 }
 
 install() {
-	make install PLAT=posix INSTALL_TOP="$BANAN_SYSROOT/usr" || exit 1
+	make install PLAT=posix INSTALL_TOP="$DESTDIR/usr" || exit 1
 }

ports/lynx/build.sh

@@ -4,7 +4,7 @@ NAME='lynx'
 VERSION='2.9.2'
 DOWNLOAD_URL="https://invisible-island.net/archives/lynx/tarballs/lynx$VERSION.tar.gz#99f8f28f860094c533100d1cedf058c27fb242ce25e991e2d5f30ece4457a3bf"
 TAR_CONTENT="lynx$VERSION"
-DEPENDENCIES=('ncurses' 'ca-certificates' 'openssl' 'zlib')
+DEPENDENCIES=('ncurses' 'openssl' 'zlib')
 CONFIG_SUB=('config.sub')
 CONFIGURE_OPTIONS=(
 	'--without-system-type'

ports/mesa/build.sh

@@ -74,8 +74,9 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 
-	ln -sf osmesa.pc $BANAN_SYSROOT/usr/lib/pkgconfig/opengl.pc
-	ln -sf libOSMesa.so $BANAN_SYSROOT/usr/lib/libGL.so
+	mkdir -p "$DESTDIR/usr/lib/pkgconfig"
+	ln -sf osmesa.pc $DESTDIR/usr/lib/pkgconfig/opengl.pc
+	ln -sf libOSMesa.so $DESTDIR/usr/lib/libGL.so
 }

ports/nyancat/build.sh

@@ -9,5 +9,6 @@ configure() {
 }
 
 install() {
-	cp src/nyancat "$BANAN_SYSROOT/usr/bin/"
+	mkdir -p "$DESTDIR/usr/bin"
+	cp src/nyancat "$DESTDIR/usr/bin/"
 }

ports/openal-soft/build.sh

@@ -21,5 +21,5 @@ build() {
 }
 
 install() {
-	cmake --install build || exit 1
+	DESTDIR="$DESTDIR" cmake --install build || exit 1
 }

ports/openssl/build.sh

@@ -11,16 +11,16 @@ configure() {
 }
 
 post_install() {
-	rm -f "$BANAN_SYSROOT/etc/ssl/certs"/*
+	rm -f "$DESTDIR/etc/ssl/certs"/*
 
-	ln -svf "../cacert/cacert.pem" "$BANAN_SYSROOT/etc/ssl/cert.pem"
-	ln -svf "../../cacert/cacert.pem" "$BANAN_SYSROOT/etc/ssl/certs/ca-certificates.crt"
-	ln -svf "../../cacert/cacert.pem" "$BANAN_SYSROOT/etc/ssl/certs/ca-bundle.crt"
+	ln -svf "../cacert/cacert.pem" "$DESTDIR/etc/ssl/cert.pem"
+	ln -svf "../../cacert/cacert.pem" "$DESTDIR/etc/ssl/certs/ca-certificates.crt"
+	ln -svf "../../cacert/cacert.pem" "$DESTDIR/etc/ssl/certs/ca-bundle.crt"
 
 	openssl rehash "$BANAN_SYSROOT/etc/cacert/extracted"
 	find "$BANAN_SYSROOT/etc/cacert/extracted" -type l -print0 |
 	while IFS= read -r -d '' link; do
-		ln -s "../../cacert/extracted/$(readlink "$link")" "$BANAN_SYSROOT/etc/ssl/certs/${link##*/}"
+		ln -s "../../cacert/extracted/$(readlink "$link")" "$DESTDIR/etc/ssl/certs/${link##*/}"
 		rm "$link"
 	done
 }

ports/pango/build.sh

@@ -3,7 +3,7 @@
 NAME='pango'
 VERSION='1.57.0'
 DOWNLOAD_URL="https://gitlab.gnome.org/GNOME/pango/-/archive/$VERSION/pango-$VERSION.tar.gz#1b2e2f683dfb5adec3faf17087ade8c648f10a5d3d0e17e421e0ac1a39e6740e"
-DEPENDENCIES=('glib' 'fontconfig' 'cairo' 'fribidi')
+DEPENDENCIES=('glib' 'fontconfig' 'cairo' 'fribidi' 'libXft')
 CONFIGURE_OPTIONS=(
 	'-Dprefix=/usr'
 	'-Dbuild-testsuite=false'
@@ -22,5 +22,5 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 }

ports/pcre2/build.sh

@@ -4,3 +4,6 @@ NAME='pcre2'
 VERSION='10.45'
 DOWNLOAD_URL="https://github.com/PCRE2Project/pcre2/releases/download/pcre2-$VERSION/pcre2-$VERSION.tar.gz#0e138387df7835d7403b8351e2226c1377da804e0737db0e071b48f07c9d12ee"
 CONFIG_SUB=('config.sub')
+CONFIGURE_OPTIONS=(
+	'--disable-static'
+)

ports/physfs/build.sh

@@ -20,5 +20,5 @@ build() {
 }
 
 install() {
-	cmake --install build || exit 1
+	DESTDIR="$DESTDIR" cmake --install build || exit 1
 }

ports/pixman/build.sh

@@ -21,5 +21,5 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 }

ports/qemu/build.sh

@@ -10,6 +10,7 @@ CONFIGURE_OPTIONS=(
 	'--target-list=x86_64-softmmu'
 	'--disable-tpm'
 	'--disable-docs'
+	'--enable-slirp'
 )
 
 pre_configure() {

ports/quake2/build.sh

@@ -31,9 +31,9 @@ build() {
 }
 
 install() {
-	cp -v build/quake2-soft "${BANAN_SYSROOT}/bin/quake2" || exit 1
+	mkdir -p "$DESTDIR/usr/bin"
+	cp -vf build/quake2-soft "$DESTDIR/usr/bin/quake2" || exit 1
 
-	baseq2_tar=$(realpath ../baseq2.tar.gz || exit 1)
-	cd "$BANAN_SYSROOT/home/user/"
-	tar xf $baseq2_tar
+	mkdir -p "$DESTDIR/home/user"
+	tar xf ../baseq2.tar.gz -C "$DESTDIR/home/user/"
 }

ports/sdl12-compat/build.sh

@@ -20,5 +20,5 @@ build() {
 }
 
 install() {
-	cmake --install build || exit 1
+	DESTDIR="$DESTDIR" cmake --install build || exit 1
 }

ports/shared-mime-info/build.sh

@@ -24,5 +24,5 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 }

ports/tcc/build.sh

@@ -26,5 +26,5 @@ configure() {
 }
 
 post_install() {
-	ln -sf $tcc_arch-tcc $BANAN_SYSROOT/usr/bin/tcc
+	ln -sf $tcc_arch-tcc $DESTDIR/usr/bin/tcc
 }

ports/tcl/build.sh

@@ -18,5 +18,5 @@ build() {
 }
 
 install() {
-	make -C unix install "DESTDIR=$BANAN_SYSROOT" || exit 1
+	make -C unix install "DESTDIR=$DESTDIR" || exit 1
 }

ports/timidity/build.sh

@@ -19,9 +19,10 @@ post_install() {
 	fi
 
 	eawpats_dir="/usr/share/eawpats"
-	mkdir -p "$BANAN_SYSROOT/$eawpats_dir"
-	unzip -qod "$BANAN_SYSROOT/$eawpats_dir" ../eawpats.zip
+	mkdir -p "$DESTDIR/$eawpats_dir"
+	unzip -qod "$DESTDIR/$eawpats_dir" ../eawpats.zip
 
-	cp "$BANAN_SYSROOT/$eawpats_dir/timidity.cfg" "$BANAN_SYSROOT/etc/"
-	sed -i "s|^dir .*$|dir $eawpats_dir|g" "$BANAN_SYSROOT/etc/timidity.cfg"
+	mkdir -p "$DESTDIR/etc"
+	cp "$DESTDIR/$eawpats_dir/timidity.cfg" "$DESTDIR/etc/"
+	sed -i "s|^dir .*$|dir $eawpats_dir|g" "$DESTDIR/etc/timidity.cfg"
 }

ports/tinygb/build.sh

@@ -15,5 +15,5 @@ build() {
 }
 
 install() {
-	cp -v tinygb "$BANAN_SYSROOT"/usr/bin || exit 1
+	cp -v tinygb "$DESTDIR/usr/bin/" || exit 1
 }

ports/tuxracer/build.sh

@@ -31,9 +31,9 @@ post_install() {
 		tar xf "tuxracer-data-$VERSION.tar.gz" || exit 1
 	fi
 
-	mkdir -p "$BANAN_SYSROOT/usr/share/tuxracer" || exit 1
-	cp -r "tuxracer-data-$VERSION"/* "$BANAN_SYSROOT/usr/share/tuxracer/" || exit 1
-	find "$BANAN_SYSROOT/usr/share/tuxracer" -type f -exec chmod 644 {} +
+	mkdir -p "$DESTDIR/usr/share/tuxracer" || exit 1
+	cp -r "tuxracer-data-$VERSION"/* "$DESTDIR/usr/share/tuxracer/" || exit 1
+	find "$DESTDIR/usr/share/tuxracer" -type f -exec chmod 644 {} +
 
 	popd
 }

ports/xash3d-fwgs/build.sh

@@ -3,7 +3,7 @@
 NAME='xash3d-fwgs'
 VERSION='git'
 DOWNLOAD_URL="https://github.com/FWGS/xash3d-fwgs.git#da1b9ad80d76156a5cbd54d3ce87edb32634ea87"
-DEPENDENCIES=('SDL2' 'freetype')
+DEPENDENCIES=('SDL2' 'freetype' 'bzip2' 'libvorbis')
 
 configure() {
 	git submodule update --init --recursive || exit 1
@@ -22,13 +22,12 @@ build() {
 }
 
 install() {
-    ./waf install --destdir=$BANAN_SYSROOT/home/user/halflife || exit 1
-	patchelf --add-needed libxash.so $BANAN_SYSROOT/home/user/halflife/xash3d
+	./waf install --destdir="$DESTDIR/usr/share/games/halflife" || exit 1
 
-	cat > $BANAN_SYSROOT/home/user/halflife/start.sh << EOF
+	cat > "$DESTDIR/home/user/halflife/start.sh" << EOF
 #!/bin/Shell
 export LD_LIBRARY_PATH=/home/user/halflife
 ./xash3d -console
 EOF
-	chmod +x $BANAN_SYSROOT/home/user/halflife/start.sh
+	chmod +x $DESTDIR/home/user/halflife/start.sh
 }

ports/xbanan/build.sh

@@ -18,10 +18,11 @@ build() {
 }
 
 install() {
-	cp -v build/xbanan/xbanan "$BANAN_SYSROOT/usr/bin" || exit 1
+	mkdir -p "$DESTDIR/usr/bin"
+	cp -v build/xbanan/xbanan "$DESTDIR/usr/bin/" || exit 1
 
-	mkdir -p "$BANAN_SYSROOT/usr/share/fonts/X11"
-	cp -r fonts/misc "$BANAN_SYSROOT/usr/share/fonts/X11/" || exit 1
+	mkdir -p "$DESTDIR/usr/share/fonts/X11"
+	cp -r fonts/misc "$DESTDIR/usr/share/fonts/X11/" || exit 1
 }
 
 post_install() {

ports/xorgproto/build.sh

@@ -21,5 +21,5 @@ build() {
 }
 
 install() {
-	meson install --destdir="$BANAN_SYSROOT" -C build || exit 1
+	meson install --destdir="$DESTDIR" -C build || exit 1
 }

ports/xz/build.sh

@@ -20,5 +20,5 @@ build() {
 }
 
 install() {
-	cmake --install build ||exit 1
+	DESTDIR="$DESTDIR" cmake --install build ||exit 1
 }

ports/zlib/build.sh

@@ -17,5 +17,5 @@ build() {
 }
 
 install() {
-	cmake --install build || exit 1
+	DESTDIR="$DESTDIR" cmake --install build || exit 1
 }

ports/zstd/build.sh

@@ -16,5 +16,5 @@ build() {
 }
 
 install() {
-	cmake --install _build ||exit 1
+	DESTDIR="$DESTDIR" cmake --install _build ||exit 1
 }

toolchain/Toolchain.txt

@@ -16,13 +16,11 @@ set(TOOLCHAIN_PREFIX $ENV{BANAN_TOOLCHAIN_PREFIX})
 set(CMAKE_SYSTEM_NAME banan-os)
 set(CMAKE_SYSTEM_PROCESSOR ${BANAN_ARCH})
 
-set(CMAKE_SYSROOT ${BANAN_SYSROOT})
-set(CMAKE_STAGING_PREFIX ${BANAN_SYSROOT}/usr)
-
+set(CMAKE_FIND_ROOT_PATH ${BANAN_SYSROOT})
 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
 set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
 set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
-set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE BOTH)
+set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
 
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED True)

toolchain/build.sh

@@ -130,7 +130,8 @@ build_gcc () {
 		--enable-shared \
 		--enable-lto \
 		--disable-nls \
-		--enable-languages=c,c++
+		--enable-languages=c,c++ \
+		CXXFLAGS='-fno-char8_t'
 
 	XCFLAGS=""
 	if [ $BANAN_ARCH = "x86_64" ]; then

toolchain/meson-cross-file.in

@@ -11,11 +11,12 @@ ar = 'ARCH-pc-banan_os-ar'
 ld = 'ARCH-pc-banan_os-ld'
 objcopy = 'ARCH-pc-banan_os-objcopy'
 strip = 'ARCH-pc-banan_os-strip'
-pkg-config = 'pkg-config'
-cmake = 'CMAKE'
+pkg-config = 'PKG_CONFIG'
+cmake = 'CMAKE_BINARY'
 
 glib-compile-schemas = '/usr/bin/glib-compile-schemas'
 glib-compile-resources = '/usr/bin/glib-compile-resources'
 
 [properties]
 sys_root='SYSROOT'
+cmake_toolchain_file='CMAKE_TOOLCHAIN'

userspace/libraries/LibC/include/stdio.h

@@ -127,6 +127,8 @@ int		vsnprintf(char* __restrict s, size_t n, const char* __restrict format, va_l
 int		vsprintf(char* __restrict s, const char* __restrict format, va_list ap);
 int		vsscanf(const char* __restrict s, const char* __restrict format, va_list arg);
 
+void __fseterr(FILE* stream);
+
 __END_DECLS
 
 #endif

userspace/libraries/LibC/include/stdlib.h

@@ -75,8 +75,8 @@ int					mblen(const char* s, size_t n);
 size_t				mbstowcs(wchar_t* __restrict pwcs, const char* __restrict s, size_t n);
 int					mbtowc(wchar_t* __restrict pwc, const char* __restrict s, size_t n);
 char*				mkdtemp(char* _template);
-char*				mktemp(char* _template);
 int					mkstemp(char* _template);
+int					mkostemp(char* _template, int flags);
 long				mrand48(void);
 long				nrand48(unsigned short xsubi[3]);
 int					posix_memalign(void** memptr, size_t alignment, size_t size);
@@ -109,6 +109,10 @@ int					unsetenv(const char* name);
 size_t				wcstombs(char* __restrict s, const wchar_t* __restrict pwcs, size_t n);
 int					wctomb(char* s, wchar_t wchar);
 
+char*	mktemp(char* _template);
+int		mkstemps(char* _template, int suffixlen);
+int		mkostemps(char* _template, int suffixlen, int flags);
+
 __END_DECLS
 
 #endif

userspace/libraries/LibC/include/sys/file.h

@@ -6,9 +6,9 @@
 __BEGIN_DECLS
 
 #define LOCK_UN 0
-#define LOCK_EX 1
-#define LOCK_SH 2
-#define LOCK_NB 4
+#define LOCK_SH 1
+#define LOCK_EX 2
+#define LOCK_NB (1 << 2)
 
 int flock(int fd, int op);
 

userspace/libraries/LibC/spawn.cpp

@@ -1,12 +1,8 @@
-#include <BAN/Atomic.h>
-
 #include <errno.h>
 #include <fcntl.h>
 #include <spawn.h>
 #include <stdlib.h>
 #include <string.h>
-#include <sys/banan-os.h>
-#include <sys/mman.h>
 #include <unistd.h>
 
 #define TODO_FUNC(name, ...) int name(__VA_ARGS__) { dwarnln("TODO: " #name); errno = ENOTSUP; return -1; }
@@ -205,20 +201,6 @@ int posix_spawn_file_actions_addopen(posix_spawn_file_actions_t* __restrict file
 
 static int do_posix_spawn(pid_t* __restrict pid, const char* __restrict path, const posix_spawn_file_actions_t* file_actions, const posix_spawnattr_t* __restrict attrp, char* const argv[], char* const envp[], bool do_path_resolution)
 {
-	// MAP_SHARED | MAP_ANONYMOUS is not supported :D
-
-	const auto smo_key = smo_create(sizeof(int), PROT_READ | PROT_WRITE);
-	if (smo_key == -1)
-		return errno;
-
-	void* addr = smo_map(smo_key);
-	smo_delete(smo_key);
-	if (addr == MAP_FAILED)
-		return errno;
-
-	auto& child_status = *static_cast<BAN::Atomic<int>*>(addr);
-	child_status = INT_MAX;
-
 	const pid_t child_pid = fork();
 	if (child_pid == 0)
 	{
@@ -227,7 +209,6 @@ static int do_posix_spawn(pid_t* __restrict pid, const char* __restrict path, co
 				auto ret = __VA_ARGS__; \
 				if (ret != (err)) \
 					break; \
-				child_status = errno; \
 				exit(127); \
 			} while (false)
 
@@ -249,7 +230,7 @@ static int do_posix_spawn(pid_t* __restrict pid, const char* __restrict path, co
 			if (attrp->flags & POSIX_SPAWN_SETSIGDEF)
 				for (int sig = _SIGMIN; sig <= _SIGMAX; sig++)
 					if (attrp->sigdefault & (1ull << sig))
-						DIE_ON_ERROR(NULL, signal(sig, SIG_DFL));
+						DIE_ON_ERROR(SIG_ERR, signal(sig, SIG_DFL));
 
 			if (attrp->flags & POSIX_SPAWN_SETSIGMASK)
 				DIE_ON_ERROR(-1, sigprocmask(SIG_SETMASK, &attrp->sigmask, nullptr));
@@ -287,31 +268,13 @@ static int do_posix_spawn(pid_t* __restrict pid, const char* __restrict path, co
 
 #undef DIE_ON_ERROR
 
-		child_status = 0;
-
 		auto* func = do_path_resolution ? execvpe : execve;
 		func(path, argv, envp);
 		exit(127);
 	}
 
 	if (child_pid == -1)
-	{
-		munmap(addr, sizeof(int));
 		return errno;
-	}
-
-	while (child_status == INT_MAX)
-		sched_yield();
-
-	const int child_status_copy = child_status;
-	munmap(addr, sizeof(int));
-
-	if (child_status_copy != 0)
-	{
-		while (waitpid(child_pid, nullptr, 0) == -1 && errno == EINTR)
-			continue;
-		return child_status_copy;
-	}
 
 	if (pid != nullptr)
 		*pid = child_pid;

userspace/libraries/LibC/stdio.cpp

@@ -134,6 +134,12 @@ void clearerr(FILE* file)
 	file->error = false;
 }
 
+void __fseterr(FILE* file)
+{
+	ScopeLock _(file);
+	file->error = true;
+}
+
 char* ctermid(char* buffer)
 {
 	static char s_buffer[L_ctermid];
@@ -398,7 +404,8 @@ FILE* freopen(const char* pathname, const char* mode_str, FILE* file)
 
 	if (pathname)
 	{
-		fclose(file);
+		fflush(file);
+		close(file->fd);
 		file->fd = open(pathname, mode, 0666);
 		file->mode = mode & O_ACCMODE;
 		if (file->fd == -1)

userspace/libraries/LibC/stdlib.cpp

@@ -475,31 +475,36 @@ int system(const char* command)
 	return stat_val;
 }
 
-static size_t temp_template_count_x(const char* _template)
+static void randomize_temp(char* buffer)
 {
-	const size_t len = strlen(_template);
-	for (size_t i = 0; i < len; i++)
-		if (_template[len - i - 1] != 'X')
-			return i;
-	return len;
+	// FIXME: don't use rand()
+	const uint32_t value = rand() & 0xFFFFFF;
+	sprintf(buffer, "%06x", value);
 }
 
-static void generate_temp_template(char* _template, size_t x_count)
+static char* validate_temp_template(char* _template, int suffixlen)
 {
-	const size_t len = strlen(_template);
-	for (size_t i = 0; i < x_count; i++)
+	const size_t length = strlen(_template);
+	if (suffixlen < 0 || length < static_cast<size_t>(suffixlen + 6))
 	{
-		const uint8_t nibble = rand() & 0xF;
-		_template[len - i - 1] = (nibble < 10)
-			? ('0' + nibble)
-			: ('a' + nibble - 10);
+		errno = EINVAL;
+		return nullptr;
 	}
+
+	char* xptr = _template + length - suffixlen - 6;
+	if (memcmp(xptr, "XXXXXX", 6) != 0)
+	{
+		errno = EINVAL;
+		return nullptr;
+	}
+
+	return xptr;
 }
 
 char* mktemp(char* _template)
 {
-	const size_t x_count = temp_template_count_x(_template);
-	if (x_count < 6)
+	char* xptr = validate_temp_template(_template, 0);
+	if (xptr == nullptr)
 	{
 		errno = EINVAL;
 		_template[0] = '\0';
@@ -508,18 +513,22 @@ char* mktemp(char* _template)
 
 	for (;;)
 	{
-		generate_temp_template(_template, x_count);
+		randomize_temp(xptr);
 
 		struct stat st;
-		if (stat(_template, &st) == 0)
+		if (stat(_template, &st) == -1)
+		{
+			if (errno != ENOENT)
+				_template[0] = '\0';
 			return _template;
+		}
 	}
 }
 
 char* mkdtemp(char* _template)
 {
-	const size_t x_count = temp_template_count_x(_template);
-	if (x_count < 6)
+	char* xptr = validate_temp_template(_template, 0);
+	if (xptr == nullptr)
 	{
 		errno = EINVAL;
 		return nullptr;
@@ -527,8 +536,7 @@ char* mkdtemp(char* _template)
 
 	for (;;)
 	{
-		generate_temp_template(_template, x_count);
-
+		randomize_temp(xptr);
 		if (mkdir(_template, S_IRUSR | S_IWUSR | S_IXUSR) != -1)
 			return _template;
 		if (errno != EEXIST)
@@ -538,8 +546,26 @@ char* mkdtemp(char* _template)
 
 int mkstemp(char* _template)
 {
-	const size_t x_count = temp_template_count_x(_template);
-	if (x_count < 6)
+	return mkostemps(_template, 0, 0);
+}
+
+int mkostemp(char* _template, int flags)
+{
+	return mkostemps(_template, 0, flags);
+}
+
+int mkstemps(char* _template, int suffixlen)
+{
+	return mkostemps(_template, suffixlen, 0);
+}
+
+int mkostemps(char* _template, int suffixlen, int flags)
+{
+	flags &= O_APPEND | O_CLOEXEC | O_SYNC;
+	flags |= O_RDWR | O_CREAT | O_EXCL;
+
+	char* xptr = validate_temp_template(_template, suffixlen);
+	if (xptr == nullptr)
 	{
 		errno = EINVAL;
 		return -1;
@@ -547,10 +573,8 @@ int mkstemp(char* _template)
 
 	for (;;)
 	{
-		generate_temp_template(_template, x_count);
-
-		int fd = open(_template, O_RDWR | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR);
-		if (fd != -1)
+		randomize_temp(xptr);
+		if (int fd = open(_template, flags, 0600); fd != -1)
 			return fd;
 		if (errno != EEXIST)
 			return -1;

userspace/libraries/LibC/sys/mman.cpp

@@ -1,5 +1,7 @@
+#include <fcntl.h>
 #include <pthread.h>
 #include <sys/mman.h>
+#include <sys/stat.h>
 #include <sys/syscall.h>
 #include <unistd.h>
 
@@ -40,38 +42,35 @@ int posix_madvise(void* addr, size_t len, int advice)
 	(void)addr;
 	(void)len;
 	(void)advice;
-	fprintf(stddbg, "TODO: posix_madvise");
 	return 0;
 }
 
-#include <BAN/Assert.h>
-#include <BAN/Debug.h>
-#include <errno.h>
-
-int mlock(const void*, size_t)
+int mlock(const void* addr, size_t len)
 {
-	ASSERT_NOT_REACHED();
+	(void)addr;
+	(void)len;
+	return 0;
 }
 
-int munlock(const void*, size_t)
+int munlock(const void* addr, size_t len)
 {
-	ASSERT_NOT_REACHED();
+	(void)addr;
+	(void)len;
+	return 0;
 }
 
 int shm_open(const char* name, int oflag, mode_t mode)
 {
-	(void)name;
-	(void)oflag;
-	(void)mode;
-	dwarnln("TODO: shm_open");
-	errno = ENOTSUP;
-	return -1;
+	if (mkdir("/tmp/shm", 0777) == -1 && errno != EEXIST)
+		return -1;
+	char path[PATH_MAX];
+	sprintf(path, "/tmp/shm%s", name);
+	return open(path, oflag | O_CLOEXEC, mode);
 }
 
 int shm_unlink(const char* name)
 {
-	(void)name;
-	dwarnln("TODO: shm_unlink");
-	errno = ENOTSUP;
-	return -1;
+	char path[PATH_MAX];
+	sprintf(path, "/tmp/shm%s", name);
+	return unlink(path);
 }

userspace/libraries/LibGUI/Window.cpp

@@ -300,10 +300,10 @@ namespace LibGUI
 		return {};
 	}
 
-	void Window::wait_events()
+	void Window::wait_events(const timespec* timeout)
 	{
 		epoll_event dummy;
-		epoll_wait(m_epoll_fd, &dummy, 1, -1);
+		epoll_pwait2(m_epoll_fd, &dummy, 1, timeout, nullptr);
 	}
 
 	void Window::poll_events()

userspace/libraries/LibGUI/include/LibGUI/Window.h

@@ -66,7 +66,7 @@ namespace LibGUI
 		uint32_t width() const { return m_width; }
 		uint32_t height() const { return m_height; }
 
-		void wait_events();
+		void wait_events(const timespec* timeout = nullptr);
 		void poll_events();
 
 		void set_socket_error_callback(BAN::Function<void()> callback)                                                       { m_socket_error_callback = callback; }

userspace/programs/TaskBar/main.cpp

@@ -4,9 +4,10 @@
 
 #include <dirent.h>
 #include <fcntl.h>
-#include <time.h>
+#include <inttypes.h>
 #include <sys/socket.h>
 #include <sys/un.h>
+#include <time.h>
 
 static BAN::ErrorOr<long long> read_integer_from_file(const char* file)
 {
@@ -63,6 +64,77 @@ static BAN::String get_battery_percentage()
 	return result;
 }
 
+static BAN::String get_cpu_load(bool show_long)
+{
+	struct LoadStats
+	{
+		uint64_t idle_ns;
+		uint64_t total_ns;
+	};
+
+	static BAN::Vector<LoadStats> cpu_stats;
+
+	BAN::Vector<LoadStats> delta_stats;
+	(void)delta_stats.reserve(show_long ? cpu_stats.size() : 1);
+
+	for (size_t i = 0;; i++)
+	{
+		char buffer[PATH_MAX];
+		sprintf(buffer, "/proc/cpu/%zu", i);
+
+		FILE* fp = fopen(buffer, "r");
+		if (fp == nullptr)
+			break;
+
+		LoadStats stats;
+		if (fscanf(fp, "%" SCNu64 " %" SCNu64, &stats.idle_ns, &stats.total_ns) == 2)
+		{
+			if (i >= cpu_stats.size())
+				MUST(cpu_stats.resize(i + 1, {}));
+
+			const LoadStats delta {
+				.idle_ns  = stats.idle_ns  - cpu_stats[i].idle_ns,
+				.total_ns = stats.total_ns - cpu_stats[i].total_ns,
+			};
+			cpu_stats[i] = stats;
+
+			if (show_long)
+				(void)delta_stats.push_back(delta);
+			else
+			{
+				if (delta_stats.empty())
+					(void)delta_stats.push_back(delta);
+				else
+				{
+					delta_stats[0].idle_ns  += delta.idle_ns;
+					delta_stats[0].total_ns += delta.total_ns;
+				}
+			}
+		}
+
+		fclose(fp);
+	}
+
+	BAN::String result;
+	(void)result.append("CPU");
+
+	for (size_t i = 0; i < delta_stats.size(); i++)
+	{
+		const uint64_t idle_10000 = 10'000 * delta_stats[i].idle_ns / delta_stats[i].total_ns;
+		const uint64_t load_10000 = 10'000 - idle_10000;
+
+		auto string = BAN::String::formatted(" {}.{2}%", load_10000 / 100, load_10000 % 100);
+		if (string.is_error())
+			continue;
+
+		(void)result.append(string.release_value());
+	}
+
+	(void)result.append(" | "_sv);
+
+	return result;
+}
+
 static int open_audio_server_fd()
 {
 	int fd = socket(AF_UNIX, SOCK_STREAM, 0);
@@ -106,10 +178,12 @@ static BAN::String get_audio_volume()
 	return MUST(BAN::String::formatted("vol {}% | ", response / 10));
 }
 
-static BAN::ErrorOr<BAN::String> get_task_bar_string()
+static BAN::ErrorOr<BAN::String> get_task_bar_string(bool show_long)
 {
 	BAN::String result;
 
+	TRY(result.append(get_cpu_load(show_long)));
+
 	TRY(result.append(get_battery_percentage()));
 
 	TRY(result.append(get_audio_volume()));
@@ -144,6 +218,12 @@ int main()
 
 	window->set_position(0, 0);
 
+	bool show_long = false;
+	window->set_mouse_button_event_callback([&](auto event) {
+		if (event.pressed)
+			show_long = !show_long;
+	});
+
 	window->texture().fill(bg_color);
 	window->invalidate();
 
@@ -153,7 +233,7 @@ int main()
 	const auto update_string =
 		[&]()
 		{
-			auto text_or_error = get_task_bar_string();
+			auto text_or_error = get_task_bar_string(show_long);
 			if (text_or_error.is_error())
 				return;
 			const auto text = text_or_error.release_value();
@@ -176,6 +256,8 @@ int main()
 
 	while (is_running)
 	{
+		window->poll_events();
+
 		update_string();
 
 		constexpr uint64_t ns_per_s = 1'000'000'000;
@@ -193,10 +275,10 @@ int main()
 
 		uint64_t sleep_ns = target_ns - current_ns;
 
-		timespec sleep_ts;
-		sleep_ts.tv_sec  = sleep_ns / ns_per_s;
-		sleep_ts.tv_nsec = sleep_ns % ns_per_s;
+		timespec timeout_ts;
+		timeout_ts.tv_sec  = sleep_ns / ns_per_s;
+		timeout_ts.tv_nsec = sleep_ns % ns_per_s;
 
-		nanosleep(&sleep_ts, nullptr);
+		window->wait_events(&timeout_ts);
 	}
 }

userspace/programs/resolver/main.cpp

@@ -66,7 +66,7 @@ struct DNSEntry
 
 	DNSEntry(DNSEntry&& other)
 	{
-		*this = BAN::move(other);
+		initialize_no_clear(BAN::move(other));
 	}
 
 	~DNSEntry() { clear(); }
@@ -74,6 +74,12 @@ struct DNSEntry
 	DNSEntry& operator=(DNSEntry&& other)
 	{
 		clear();
+		initialize_no_clear(BAN::move(other));
+		return *this;
+	}
+
+	void initialize_no_clear(DNSEntry&& other)
+	{
 		valid_until = other.valid_until;
 		switch (type = other.type)
 		{
@@ -88,7 +94,6 @@ struct DNSEntry
 				ASSERT_NOT_REACHED();
 		}
 		other.clear();
-		return *this;
 	}
 
 	void clear()
@@ -448,6 +453,7 @@ int main(int, char**)
 
 				if (send(client.socket, &addr, sizeof(addr), 0) == -1)
 					dprintln("send: {}", strerror(errno));
+				dwarnln("{} -> {}", client.query.data(), inet_ntoa({ .s_addr = resolved->raw }));
 				client.close = true;
 				break;
 			}
@@ -460,14 +466,8 @@ int main(int, char**)
 
 			if (!client.query.empty())
 			{
-				static uint8_t buffer[4096];
-				ssize_t nrecv = recv(client.socket, buffer, sizeof(buffer), 0);
-				if (nrecv < 0)
-					dprintln("{}", strerror(errno));
-				if (nrecv <= 0)
-					client.close = true;
-				else
-					dprintln("Client already has a query");
+				dprintln("unexpected data from client");
+				client.close = true;
 				continue;
 			}
 
@@ -480,8 +480,11 @@ int main(int, char**)
 
 			BAN::Optional<BAN::IPv4Address> result;
 
+			// TODO: add and parse /etc/hosts
 			if (*hostname && strcmp(query->data(), hostname) == 0)
 				result = BAN::IPv4Address(ntohl(INADDR_LOOPBACK));
+			else if (strcmp(query->data(), "localhost") == 0)
+				result = BAN::IPv4Address(ntohl(INADDR_LOOPBACK));
 			else if (auto resolved = resolve_from_dns_cache(dns_cache, query.value()); resolved.has_value())
 				result = resolved.release_value();