ports: Add libarchive port

Also don't depend on mesa or Xlib. We only need the protocol headers to
compile the project

ports/bzip2/build.sh

@@ -0,0 +1,36 @@
+#!/bin/bash ../install.sh
+
+NAME='bzip2'
+VERSION='1.0.8'
+DOWNLOAD_URL="https://sourceware.org/pub/bzip2/bzip2-$VERSION.tar.gz#ab5a03176ee106d3f0fa90e381da478ddae405918153cca248e682cd0c4a2269"
+
+configure() {
+	:
+}
+
+build() {
+	make -j$(nproc) -f Makefile-libbz2_so CC="$CC" || exit 1
+}
+
+install() {
+	cp -v libbz2.so.$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
+
+	cp -v bzlib.h $BANAN_SYSROOT/usr/include/ || exit 1
+
+	cat > $BANAN_SYSROOT/usr/lib/pkgconfig/bzip2.pc << EOF
+prefix=/usr
+exec_prefix=\${prefix}
+bindir=\${exec_prefix}/bin
+libdir=\${exec_prefix}/lib
+includedir=\${prefix}/include
+
+Name: bzip2
+Description: A file compression library
+Version: $VERSION
+Libs: -L\${libdir} -lbz2
+Cflags: -I\${includedir}
+EOF
+}

ports/libarchive/build.sh

@@ -0,0 +1,23 @@
+#!/bin/bash ../install.sh
+
+NAME='libarchive'
+VERSION='3.8.6'
+DOWNLOAD_URL="https://github.com/libarchive/libarchive/releases/download/v$VERSION/libarchive-$VERSION.tar.xz#8ac57c1f5e99550948d1fe755c806d26026e71827da228f36bef24527e372e6f"
+DEPENDENCIES=('zlib' 'zstd' 'bzip2' 'xz')
+
+configure() {
+	cmake --fresh -B build -S . -G Ninja  \
+		--toolchain="$BANAN_TOOLCHAIN_DIR/Toolchain.txt" \
+		-DCMAKE_INSTALL_PREFIX=/usr \
+		-DCMAKE_BUILD_TYPE=Release \
+		-DENABLE_TEST=OFF \
+		|| exit 1
+}
+
+build() {
+	cmake --build build || exit 1
+}
+
+install() {
+	cmake --install build || exit 1
+}

ports/xbanan/build.sh

@@ -2,8 +2,8 @@
 
 NAME='xbanan'
 VERSION='git'
-DOWNLOAD_URL="https://git.bananymous.com/Bananymous/xbanan.git#b228ef13c41adff2738acaeda5db804ebf493bfd"
-DEPENDENCIES=('mesa' 'libX11' 'xorgproto')
+DOWNLOAD_URL="https://git.bananymous.com/Bananymous/xbanan.git#b2c642f03d2e498e9d6acd55cc89a5e76c220811"
+DEPENDENCIES=('xorgproto')
 
 configure() {
 	cmake --fresh -B build -S . -G Ninja \

userspace/libraries/LibC/include/bits/types/uthread.h

@@ -48,19 +48,7 @@ struct uthread
 	uintptr_t dtv[1 + 256];
 };
 
-#if defined(__x86_64__)
-#define _get_uthread() ({ \
-		struct uthread* _uthread; \
-		__asm__ volatile("movq %%fs:0, %0" : "=r"(_uthread)); \
-		_uthread; \
-	})
-#elif defined(__i686__)
-#define _get_uthread() ({ \
-		struct uthread* _uthread; \
-		__asm__ volatile("movl %%gs:0, %0" : "=r"(_uthread)); \
-		_uthread; \
-	})
-#endif
+#define _get_uthread() ((struct uthread*)__builtin_thread_pointer())
 
 __END_DECLS
 

userspace/libraries/LibGUI/Window.cpp

@@ -96,12 +96,12 @@ namespace LibGUI
 			return on_socket_error(function);
 		}
 
-		packet.serialize(m_in_buffer.span());
+		packet.serialize(m_out_buffer.span());
 
 		size_t total_sent = 0;
 		while (total_sent < serialized_size)
 		{
-			const ssize_t nsend = send(m_server_fd, m_in_buffer.data() + total_sent, serialized_size - total_sent, 0);
+			const ssize_t nsend = send(m_server_fd, m_out_buffer.data() + total_sent, serialized_size - total_sent, 0);
 			if (nsend < 0)
 				dwarnln("send: {}", strerror(errno));
 			if (nsend <= 0)
@@ -327,15 +327,14 @@ namespace LibGUI
 					m_in_buffer_size += nrecv;
 			}
 
-			size_t bytes_handled = 0;
-			while (m_in_buffer_size - bytes_handled >= sizeof(PacketHeader))
+			BAN::ConstByteSpan in_span = m_in_buffer.span().slice(0, m_in_buffer_size);
+			while (in_span.size() >= sizeof(PacketHeader))
 			{
-				BAN::ConstByteSpan packet_span = m_in_buffer.span().slice(bytes_handled);
-				const auto header = packet_span.as<const PacketHeader>();
-				if (packet_span.size() < header.size || header.size < sizeof(LibGUI::PacketHeader))
+				const auto header = in_span.as<const PacketHeader>();
+				if (in_span.size() < header.size || header.size < sizeof(LibGUI::PacketHeader))
 					break;
-				packet_span = packet_span.slice(0, header.size);
 
+				const auto packet_span = in_span.slice(0, header.size);
 				switch (header.type)
 				{
 #define TRY_OR_BREAK(...) ({ auto&& e = (__VA_ARGS__); if (e.is_error()) break; e.release_value(); })
@@ -402,16 +401,16 @@ namespace LibGUI
 						break;
 				}
 
-				bytes_handled += header.size;
+				in_span = in_span.slice(header.size);
 			}
 
 			// NOTE: this will only move a single partial packet, so this is fine
-			m_in_buffer_size -= bytes_handled;
 			memmove(
 				m_in_buffer.data(),
-				m_in_buffer.data() + bytes_handled,
-				m_in_buffer_size
+				in_span.data(),
+				in_span.size()
 			);
+			m_in_buffer_size = in_span.size();
 
 			if (m_in_buffer_size >= sizeof(LibGUI::PacketHeader))
 			{

userspace/libraries/LibGUI/include/LibGUI/Packet.h

@@ -35,9 +35,6 @@
 #define DEFINE_PACKET_EXTRA(name, extra, ...) \
 	struct name \
 	{ \
-		static constexpr PacketType type = PacketType::name; \
-		static constexpr uint32_t type_u32 = static_cast<uint32_t>(type); \
- \
 		extra; \
  \
 		FOR_EACH(FIELD_DECL, __VA_ARGS__) \
@@ -45,8 +42,7 @@
 		size_t serialized_size() const \
 		{ \
 			size_t serialized_size = 0; \
-			serialized_size += Serialize::serialized_size_impl<uint32_t>(0); \
-			serialized_size += Serialize::serialized_size_impl<uint32_t>(type_u32); \
+			serialized_size += Serialize::serialized_size_impl(PacketHeader {}); \
 			FOR_EACH(ADD_SERIALIZED_SIZE, __VA_ARGS__) \
 			return serialized_size; \
 		} \
@@ -54,16 +50,17 @@
 		void serialize(BAN::ByteSpan buffer) const \
 		{ \
 			const uint32_t serialized_size = this->serialized_size(); \
-			Serialize::serialize_impl<uint32_t>(buffer, serialized_size); \
-			Serialize::serialize_impl<uint32_t>(buffer, type_u32); \
+			Serialize::serialize_impl(buffer, PacketHeader { \
+				.size = serialized_size, \
+				.type = PacketType::name, \
+			}); \
 			FOR_EACH(SERIALIZE, __VA_ARGS__); \
 		} \
  \
 		static BAN::ErrorOr<name> deserialize(BAN::ConstByteSpan buffer) \
 		{ \
-			const uint32_t size_u32 = TRY(Serialize::deserialize_impl<uint32_t>(buffer)); \
-			const uint32_t type_u32 = TRY(Serialize::deserialize_impl<uint32_t>(buffer)); \
-			if (type_u32 != name::type_u32 || size_u32 != buffer.size() + 2 * sizeof(uint32_t)) \
+			const auto header = TRY(Serialize::deserialize_impl<PacketHeader>(buffer)); \
+			if (header.type != PacketType::name || header.size != buffer.size() + sizeof(PacketHeader)) \
 				return BAN::Error::from_errno(EINVAL); \
 			name value; \
 			FOR_EACH(DESERIALIZE, __VA_ARGS__) \