10 files changed, 27 insertions, 24 deletions

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 0913be72c..3a57356ab 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -54,8 +54,10 @@ else()
     add_compile_options(
         -Wall
         -Werror=implicit-fallthrough
+        -Werror=missing-declarations
         -Werror=reorder
         -Wextra
+        -Wmissing-declarations
         -Wno-attributes
         -Wno-unused-parameter
     )
diff --git a/src/core/crypto/partition_data_manager.cpp b/src/core/crypto/partition_data_manager.cpp
index d64302f2e..7ed71ac3a 100644
--- a/src/core/crypto/partition_data_manager.cpp
+++ b/src/core/crypto/partition_data_manager.cpp
@@ -202,8 +202,8 @@ static std::array<Key128, 0x20> FindEncryptedMasterKeyFromHex(const std::vector<
     return out;
 }
 
-FileSys::VirtualFile FindFileInDirWithNames(const FileSys::VirtualDir& dir,
-                                            const std::string& name) {
+static FileSys::VirtualFile FindFileInDirWithNames(const FileSys::VirtualDir& dir,
+                                                   const std::string& name) {
     const auto upper = Common::ToUpper(name);
 
     for (const auto& fname : {name, name + ".bin", upper, upper + ".BIN"}) {
@@ -345,8 +345,7 @@ FileSys::VirtualFile PartitionDataManager::GetPackage2Raw(Package2Type type) con
     return package2.at(static_cast<size_t>(type));
 }
 
-bool AttemptDecrypt(const std::array<u8, 16>& key, Package2Header& header) {
-
+static bool AttemptDecrypt(const std::array<u8, 16>& key, Package2Header& header) {
     const std::vector<u8> iv(header.header_ctr.begin(), header.header_ctr.end());
     Package2Header temp = header;
     AESCipher<Key128> cipher(key, Mode::CTR);
diff --git a/src/core/hle/service/bcat/backend/boxcat.cpp b/src/core/hle/service/bcat/backend/boxcat.cpp
index f589864ee..5febe8fc1 100644
--- a/src/core/hle/service/bcat/backend/boxcat.cpp
+++ b/src/core/hle/service/bcat/backend/boxcat.cpp
@@ -18,6 +18,7 @@
 #include "core/hle/service/bcat/backend/boxcat.h"
 #include "core/settings.h"
 
+namespace Service::BCAT {
 namespace {
 
 // Prevents conflicts with windows macro called CreateFile
@@ -30,10 +31,6 @@ bool VfsDeleteFileWrap(FileSys::VirtualDir dir, std::string_view name) {
     return dir->DeleteFile(name);
 }
 
-} // Anonymous namespace
-
-namespace Service::BCAT {
-
 constexpr ResultCode ERROR_GENERAL_BCAT_FAILURE{ErrorModule::BCAT, 1};
 
 constexpr char BOXCAT_HOSTNAME[] = "api.yuzu-emu.org";
@@ -90,8 +87,6 @@ constexpr u32 PORT = 443;
 constexpr u32 TIMEOUT_SECONDS = 30;
 [[maybe_unused]] constexpr u64 VFS_COPY_BLOCK_SIZE = 1ULL << 24; // 4MB
 
-namespace {
-
 std::string GetBINFilePath(u64 title_id) {
     return fmt::format("{}bcat/{:016X}/launchparam.bin",
                        FileUtil::GetUserPath(FileUtil::UserPath::CacheDir), title_id);
diff --git a/src/core/hle/service/es/es.cpp b/src/core/hle/service/es/es.cpp
index 86f36915a..f8e9df4b1 100644
--- a/src/core/hle/service/es/es.cpp
+++ b/src/core/hle/service/es/es.cpp
@@ -4,6 +4,7 @@
 
 #include "core/crypto/key_manager.h"
 #include "core/hle/ipc_helpers.h"
+#include "core/hle/service/es/es.h"
 #include "core/hle/service/service.h"
 
 namespace Service::ES {
diff --git a/src/tests/core/core_timing.cpp b/src/tests/core/core_timing.cpp
index 1e3940801..ff2d11cc8 100644
--- a/src/tests/core/core_timing.cpp
+++ b/src/tests/core/core_timing.cpp
@@ -14,13 +14,14 @@
 #include "core/core.h"
 #include "core/core_timing.h"
 
+namespace {
 // Numbers are chosen randomly to make sure the correct one is given.
-static constexpr std::array<u64, 5> CB_IDS{{42, 144, 93, 1026, UINT64_C(0xFFFF7FFFF7FFFF)}};
-static constexpr int MAX_SLICE_LENGTH = 10000; // Copied from CoreTiming internals
+constexpr std::array<u64, 5> CB_IDS{{42, 144, 93, 1026, UINT64_C(0xFFFF7FFFF7FFFF)}};
+constexpr int MAX_SLICE_LENGTH = 10000; // Copied from CoreTiming internals
 
-static std::bitset<CB_IDS.size()> callbacks_ran_flags;
-static u64 expected_callback = 0;
-static s64 lateness = 0;
+std::bitset<CB_IDS.size()> callbacks_ran_flags;
+u64 expected_callback = 0;
+s64 lateness = 0;
 
 template <unsigned int IDX>
 void CallbackTemplate(u64 userdata, s64 cycles_late) {
@@ -31,7 +32,7 @@ void CallbackTemplate(u64 userdata, s64 cycles_late) {
     REQUIRE(lateness == cycles_late);
 }
 
-static u64 callbacks_done = 0;
+u64 callbacks_done = 0;
 
 void EmptyCallback(u64 userdata, s64 cycles_late) {
     ++callbacks_done;
@@ -48,8 +49,8 @@ struct ScopeInit final {
     Core::Timing::CoreTiming core_timing;
 };
 
-static void AdvanceAndCheck(Core::Timing::CoreTiming& core_timing, u32 idx, u32 context = 0,
-                            int expected_lateness = 0, int cpu_downcount = 0) {
+void AdvanceAndCheck(Core::Timing::CoreTiming& core_timing, u32 idx, u32 context = 0,
+                     int expected_lateness = 0, int cpu_downcount = 0) {
     callbacks_ran_flags = 0;
     expected_callback = CB_IDS[idx];
     lateness = expected_lateness;
@@ -62,6 +63,7 @@ static void AdvanceAndCheck(Core::Timing::CoreTiming& core_timing, u32 idx, u32
 
     REQUIRE(decltype(callbacks_ran_flags)().set(idx) == callbacks_ran_flags);
 }
+} // Anonymous namespace
 
 TEST_CASE("CoreTiming[BasicOrder]", "[core]") {
     ScopeInit guard;
diff --git a/src/video_core/engines/fermi_2d.cpp b/src/video_core/engines/fermi_2d.cpp
index 85d308e26..bace6affb 100644
--- a/src/video_core/engines/fermi_2d.cpp
+++ b/src/video_core/engines/fermi_2d.cpp
@@ -28,7 +28,7 @@ void Fermi2D::CallMethod(const GPU::MethodCall& method_call) {
     }
 }
 
-std::pair<u32, u32> DelimitLine(u32 src_1, u32 src_2, u32 dst_1, u32 dst_2, u32 src_line) {
+static std::pair<u32, u32> DelimitLine(u32 src_1, u32 src_2, u32 dst_1, u32 dst_2, u32 src_line) {
     const u32 line_a = src_2 - src_1;
     const u32 line_b = dst_2 - dst_1;
     const u32 excess = std::max<s32>(0, line_a - src_line + src_1);
diff --git a/src/video_core/shader/control_flow.cpp b/src/video_core/shader/control_flow.cpp
index 6d313963a..e00a3fb70 100644
--- a/src/video_core/shader/control_flow.cpp
+++ b/src/video_core/shader/control_flow.cpp
@@ -587,8 +587,6 @@ bool TryQuery(CFGRebuildState& state) {
     return true;
 }
 
-} // Anonymous namespace
-
 void InsertBranch(ASTManager& mm, const BlockBranchInfo& branch_info) {
     const auto get_expr = ([&](const Condition& cond) -> Expr {
         Expr result{};
@@ -655,6 +653,8 @@ void DecompileShader(CFGRebuildState& state) {
     state.manager->Decompile();
 }
 
+} // Anonymous namespace
+
 std::unique_ptr<ShaderCharacteristics> ScanFlow(const ProgramCode& program_code, u32 start_address,
                                                 const CompilerSettings& settings,
                                                 Registry& registry) {
diff --git a/src/video_core/textures/decoders.cpp b/src/video_core/textures/decoders.cpp
index 7df5f1452..fae8638ec 100644
--- a/src/video_core/textures/decoders.cpp
+++ b/src/video_core/textures/decoders.cpp
@@ -11,6 +11,7 @@
 #include "video_core/textures/texture.h"
 
 namespace Tegra::Texture {
+namespace {
 
 /**
  * This table represents the internal swizzle of a gob,
@@ -174,6 +175,8 @@ void SwizzledData(u8* const swizzled_data, u8* const unswizzled_data, const bool
     }
 }
 
+} // Anonymous namespace
+
 void CopySwizzledData(u32 width, u32 height, u32 depth, u32 bytes_per_pixel,
                       u32 out_bytes_per_pixel, u8* const swizzled_data, u8* const unswizzled_data,
                       bool unswizzle, u32 block_height, u32 block_depth, u32 width_spacing) {
diff --git a/src/video_core/textures/decoders.h b/src/video_core/textures/decoders.h
index e5eac3f3b..9f2d6d308 100644
--- a/src/video_core/textures/decoders.h
+++ b/src/video_core/textures/decoders.h
@@ -56,8 +56,7 @@ void UnswizzleSubrect(u32 subrect_width, u32 subrect_height, u32 dest_pitch, u32
                       u32 bytes_per_pixel, u8* swizzled_data, u8* unswizzled_data, u32 block_height,
                       u32 offset_x, u32 offset_y);
 
-void SwizzleKepler(const u32 width, const u32 height, const u32 dst_x, const u32 dst_y,
-                   const u32 block_height, const std::size_t copy_size, const u8* source_data,
-                   u8* swizzle_data);
+void SwizzleKepler(u32 width, u32 height, u32 dst_x, u32 dst_y, u32 block_height,
+                   std::size_t copy_size, const u8* source_data, u8* swizzle_data);
 
 } // namespace Tegra::Texture
diff --git a/src/yuzu/applets/profile_select.cpp b/src/yuzu/applets/profile_select.cpp
index 6aff38735..4bc8ee726 100644
--- a/src/yuzu/applets/profile_select.cpp
+++ b/src/yuzu/applets/profile_select.cpp
@@ -17,6 +17,7 @@
 #include "yuzu/applets/profile_select.h"
 #include "yuzu/main.h"
 
+namespace {
 QString FormatUserEntryText(const QString& username, Common::UUID uuid) {
     return QtProfileSelectionDialog::tr(
                "%1\n%2", "%1 is the profile username, %2 is the formatted UUID (e.g. "
@@ -41,6 +42,7 @@ QPixmap GetIcon(Common::UUID uuid) {
 
     return icon.scaled(64, 64, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
 }
+} // Anonymous namespace
 
 QtProfileSelectionDialog::QtProfileSelectionDialog(QWidget* parent)
     : QDialog(parent), profile_manager(std::make_unique<Service::Account::ProfileManager>()) {