Fix bugs/warnings from static analysis

Makefile

@@ -95,8 +95,8 @@ ifeq ($(WINDOWS_AUTO_BUILDER),1)
   EXTRA_INCLUDES := -I ../include/1 -I ../include/2 -I ../include/3 -I ../include/4
   EXTRA_CFLAGS := -Wno-expansion-to-defined
 else
-  EXTRA_INCLUDES :=
+  EXTRA_INCLUDES ?=
-  EXTRA_CFLAGS :=
+  EXTRA_CFLAGS ?=
 endif
 
 EXTRACT_ASSETS := $(PYTHON) ./extract_assets.py
@@ -591,7 +591,7 @@ SDL1_USED := 0
 SDL2_USED := 0
 
 # suppress warnings
-BACKEND_CFLAGS += -Wno-format-truncation
+BACKEND_CFLAGS += -Wno-format-truncation -Wno-format-security -Wno-trigraphs
 BACKEND_CFLAGS += $(EXTRA_CFLAGS)
 
 # for now, it's either SDL+GL or DXGI+DirectX, so choose based on WAPI
@@ -652,19 +652,19 @@ ifneq ($(SDL1_USED)$(SDL2_USED),00)
 endif
 
 ifeq ($(WINDOWS_BUILD),1)
-  CC_CHECK := $(CC) -fsyntax-only -fsigned-char $(BACKEND_CFLAGS) $(INCLUDE_CFLAGS) -Wall -Wextra -Wno-format-security $(VERSION_CFLAGS) $(GRUCODE_CFLAGS) -DWINSOCK
+  CC_CHECK := $(CC) -fsyntax-only -fsigned-char $(BACKEND_CFLAGS) $(INCLUDE_CFLAGS) -Wall -Wextra $(VERSION_CFLAGS) $(GRUCODE_CFLAGS) -DWINSOCK
   CFLAGS := $(OPT_FLAGS) $(INCLUDE_CFLAGS) $(BACKEND_CFLAGS) $(VERSION_CFLAGS) $(GRUCODE_CFLAGS) -fno-strict-aliasing -fwrapv -DWINSOCK
 
   ifeq ($(TARGET_BITS), 32)
     BACKEND_LDFLAGS += -ldbghelp
   endif
 else ifeq ($(TARGET_WEB),1)
-  CC_CHECK := $(CC) -fsyntax-only -fsigned-char $(BACKEND_CFLAGS) $(INCLUDE_CFLAGS) -Wall -Wextra -Wno-format-security $(VERSION_CFLAGS) $(GRUCODE_CFLAGS) -s USE_SDL=2
+  CC_CHECK := $(CC) -fsyntax-only -fsigned-char $(BACKEND_CFLAGS) $(INCLUDE_CFLAGS) -Wall -Wextra $(VERSION_CFLAGS) $(GRUCODE_CFLAGS) -s USE_SDL=2
   CFLAGS := $(OPT_FLAGS) $(INCLUDE_CFLAGS) $(BACKEND_CFLAGS) $(VERSION_CFLAGS) $(GRUCODE_CFLAGS) -fno-strict-aliasing -fwrapv -s USE_SDL=2
 
 # Linux / Other builds below
 else
-  CC_CHECK := $(CC) -fsyntax-only -fsigned-char $(BACKEND_CFLAGS) $(INCLUDE_CFLAGS) -Wall -Wextra -Wno-format-security $(VERSION_CFLAGS) $(GRUCODE_CFLAGS)
+  CC_CHECK := $(CC) -fsyntax-only -fsigned-char $(BACKEND_CFLAGS) $(INCLUDE_CFLAGS) -Wall -Wextra $(VERSION_CFLAGS) $(GRUCODE_CFLAGS)
   CFLAGS := $(OPT_FLAGS) $(INCLUDE_CFLAGS) $(BACKEND_CFLAGS) $(VERSION_CFLAGS) $(GRUCODE_CFLAGS) -fno-strict-aliasing -fwrapv
 
 endif

developer/static-analysis.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+make clean ; scan-build -disable-checker deadcode.DeadStores make BETTERCAMERA=1 NODRAWINGDISTANCE=1 DEBUG=1 IMMEDIATELOAD=1 DEVELOPMENT=1 STRICT=1 EXTRA_INCLUDES="-IC:/msys64/mingw64/include" -j

src/audio/heap.c

@@ -222,6 +222,10 @@ void *soundAlloc(struct SoundAllocPool *pool, u32 size) {
 #else
     u32 alignedSize = ALIGN16(size);
 
+    if (pool == NULL || pool->cur == NULL) {
+        return NULL;
+    }
+
     u8* start = pool->cur;
     if ((start + alignedSize <= pool->size + pool->start)) {
         bzero(start, alignedSize);
@@ -328,7 +332,7 @@ void *alloc_bank_or_seq(struct SoundMultiPool *arg0, s32 arg1, s32 size, s32 arg
     u16 secondVal;
 #endif
     u32 nullID = -1;
-    u8 *table;
+    u8 *table = NULL;
     u8 isSound;
 #ifndef VERSION_EU
     u16 firstVal;
@@ -349,6 +353,10 @@ void *alloc_bank_or_seq(struct SoundMultiPool *arg0, s32 arg1, s32 size, s32 arg
             isSound = TRUE;
         }
 
+        if (table == NULL) {
+            return NULL;
+        }
+
         firstVal  = (tp->entries[0].id == (s8)nullID ? SOUND_LOAD_STATUS_NOT_LOADED : table[tp->entries[0].id]);
         secondVal = (tp->entries[1].id == (s8)nullID ? SOUND_LOAD_STATUS_NOT_LOADED : table[tp->entries[1].id]);
 

src/audio/load.c

@@ -758,8 +758,8 @@ u8 get_missing_bank(u32 seqId, s32 *nonNullCount, s32 *nullCount) {
 }
 
 struct AudioBank *load_banks_immediate(s32 seqId, u8 *arg1) {
-    void *ret;
+    void *ret = NULL;
-    u32 bankId;
+    u32 bankId = 0;
     u16 offset;
     u8 i;
 

src/audio/seqplayer.c

@@ -1020,7 +1020,7 @@ GLOBAL_ASM("asm/non_matchings/seq_channel_layer_process_script_us.s")
 #endif
 
 u8 get_instrument(struct SequenceChannel *seqChannel, u8 instId, struct Instrument **instOut, struct AdsrSettings *adsr) {
-    struct Instrument *inst;
+    struct Instrument *inst = NULL;
 #ifdef VERSION_EU
     inst = get_instrument_inner(seqChannel->bankId, instId);
     if (inst == NULL)
@@ -1063,8 +1063,10 @@ u8 get_instrument(struct SequenceChannel *seqChannel, u8 instId, struct Instrume
         || ((uintptr_t) gBankLoadedPool.temporary.pool.start <= (uintptr_t) inst
             && (uintptr_t) inst <= (uintptr_t)(gBankLoadedPool.temporary.pool.start
                                    + gBankLoadedPool.temporary.pool.size))) {
+        if (inst != NULL) {
             adsr->envelope = inst->envelope;
             adsr->releaseRate = inst->releaseRate;
+        }
         *instOut = inst;
         instId++;
         return instId;
@@ -1114,7 +1116,7 @@ void sequence_channel_process_script(struct SequenceChannel *seqChannel) {
     u8 cmd;    // v1, s1
     u8 loBits; // t0, a0
     s32 offset;
-    s8 value; // sp53, 4b
+    s8 value = 0; // sp53, 4b
     u8 temp;
     s8 tempSigned;
     UNUSED u8 temp2;
@@ -1678,7 +1680,7 @@ void sequence_player_process_sequence(struct SequencePlayer *seqPlayer) {
     u8 cmd;
     u8 loBits;
     u8 temp;
-    s32 value;
+    s32 value = 0;
     s32 i;
     u16 u16v;
     u32 u32v;

src/audio/synthesis.c

@@ -600,11 +600,11 @@ u64 *synthesis_process_notes(s16 *aiBuf, s32 bufLen, u64 *cmd) {
     UNUSED u8 pad7[0x0c];                    // sp100
     UNUSED s32 tempBufLen;
 #ifdef VERSION_EU
-    s32 sp130;  //sp128, sp104
+    s32 sp130 = 0;  //sp128, sp104
     UNUSED u32 pad9;
 #else
     UNUSED u32 pad9;
-    s32 sp130;  //sp128, sp104
+    s32 sp130 = 0;  //sp128, sp104
 #endif
     s32 nAdpcmSamplesProcessed; // signed required for US
     s32 t0;

src/engine/math_util.c

@@ -17,7 +17,7 @@ void *vec3f_copy(Vec3f dest, Vec3f src) {
     dest[0] = src[0];
     dest[1] = src[1];
     dest[2] = src[2];
-    return &dest; //! warning: function returns address of local variable
+    return dest;
 }
 
 /// Set vector 'dest' to (x, y, z)
@@ -25,7 +25,7 @@ void *vec3f_set(Vec3f dest, f32 x, f32 y, f32 z) {
     dest[0] = x;
     dest[1] = y;
     dest[2] = z;
-    return &dest; //! warning: function returns address of local variable
+    return dest;
 }
 
 /// Add vector 'a' to 'dest'
@@ -33,7 +33,7 @@ void *vec3f_add(Vec3f dest, Vec3f a) {
     dest[0] += a[0];
     dest[1] += a[1];
     dest[2] += a[2];
-    return &dest; //! warning: function returns address of local variable
+    return dest;
 }
 
 /// Make 'dest' the sum of vectors a and b.
@@ -41,7 +41,7 @@ void *vec3f_sum(Vec3f dest, Vec3f a, Vec3f b) {
     dest[0] = a[0] + b[0];
     dest[1] = a[1] + b[1];
     dest[2] = a[2] + b[2];
-    return &dest; //! warning: function returns address of local variable
+    return dest;
 }
 
 /// Multiply vector 'dest' by a
@@ -50,7 +50,7 @@ void *vec3f_mul(Vec3f dest, f32 a)
     dest[0] *= a;
     dest[1] *= a;
     dest[2] *= a;
-    return &dest; //! warning: function returns address of local variable
+    return dest;
 }
 
 /// Copy vector src to dest
@@ -58,7 +58,7 @@ void *vec3s_copy(Vec3s dest, Vec3s src) {
     dest[0] = src[0];
     dest[1] = src[1];
     dest[2] = src[2];
-    return &dest; //! warning: function returns address of local variable
+    return dest;
 }
 
 /// Set vector 'dest' to (x, y, z)
@@ -66,7 +66,7 @@ void *vec3s_set(Vec3s dest, s16 x, s16 y, s16 z) {
     dest[0] = x;
     dest[1] = y;
     dest[2] = z;
-    return &dest; //! warning: function returns address of local variable
+    return dest;
 }
 
 /// Add vector a to 'dest'
@@ -74,7 +74,7 @@ void *vec3s_add(Vec3s dest, Vec3s a) {
     dest[0] += a[0];
     dest[1] += a[1];
     dest[2] += a[2];
-    return &dest; //! warning: function returns address of local variable
+    return dest;
 }
 
 /// Make 'dest' the sum of vectors a and b.
@@ -82,7 +82,7 @@ void *vec3s_sum(Vec3s dest, Vec3s a, Vec3s b) {
     dest[0] = a[0] + b[0];
     dest[1] = a[1] + b[1];
     dest[2] = a[2] + b[2];
-    return &dest; //! warning: function returns address of local variable
+    return dest;
 }
 
 /// Make 'dest' the difference of vectors a and b.
@@ -90,7 +90,7 @@ void *vec3f_dif(Vec3f dest, Vec3f a, Vec3f b) {
     dest[0] = a[0] - b[0];
     dest[1] = a[1] - b[1];
     dest[2] = a[2] - b[2];
-    return &dest; //! warning: function returns address of local variable
+    return dest;
 }
 
 /// Convert short vector a to float vector 'dest'
@@ -98,7 +98,7 @@ void *vec3s_to_vec3f(Vec3f dest, Vec3s a) {
     dest[0] = a[0];
     dest[1] = a[1];
     dest[2] = a[2];
-    return &dest; //! warning: function returns address of local variable
+    return dest;
 }
 
 /**
@@ -110,7 +110,7 @@ void *vec3f_to_vec3s(Vec3s dest, Vec3f a) {
     dest[0] = a[0] + ((a[0] > 0) ? 0.5f : -0.5f);
     dest[1] = a[1] + ((a[1] > 0) ? 0.5f : -0.5f);
     dest[2] = a[2] + ((a[2] > 0) ? 0.5f : -0.5f);
-    return &dest; //! warning: function returns address of local variable
+    return dest;
 }
 
 /**
@@ -122,7 +122,7 @@ void *find_vector_perpendicular_to_plane(Vec3f dest, Vec3f a, Vec3f b, Vec3f c)
     dest[0] = (b[1] - a[1]) * (c[2] - b[2]) - (c[1] - b[1]) * (b[2] - a[2]);
     dest[1] = (b[2] - a[2]) * (c[0] - b[0]) - (c[2] - b[2]) * (b[0] - a[0]);
     dest[2] = (b[0] - a[0]) * (c[1] - b[1]) - (c[0] - b[0]) * (b[1] - a[1]);
-    return &dest; //! warning: function returns address of local variable
+    return dest;
 }
 
 /// Make vector 'dest' the cross product of vectors a and b.
@@ -130,7 +130,7 @@ void *vec3f_cross(Vec3f dest, Vec3f a, Vec3f b) {
     dest[0] = a[1] * b[2] - b[1] * a[2];
     dest[1] = a[2] * b[0] - b[2] * a[0];
     dest[2] = a[0] * b[1] - b[0] * a[1];
-    return &dest; //! warning: function returns address of local variable
+    return dest;
 }
 
 /// Scale vector 'dest' so it has length 1
@@ -141,7 +141,7 @@ void *vec3f_normalize(Vec3f dest) {
     dest[0] *= invsqrt;
     dest[1] *= invsqrt;
     dest[2] *= invsqrt;
-    return &dest; //! warning: function returns address of local variable
+    return dest;
 }
 
 /// Get length of vector 'a'
@@ -883,7 +883,7 @@ void anim_spline_init(struct MarioState* m, Vec4s *keyFrames) {
  * Returns TRUE when the last point is reached, FALSE otherwise.
  */
 s32 anim_spline_poll(struct MarioState* m, Vec3f result) {
-    Vec4f weights;
+    Vec4f weights = { 0 };
     s32 i;
     s32 hasEnded = FALSE;
 

src/engine/surface_load.c

@@ -303,6 +303,8 @@ static void stub_surface_load_1(void) {
  * @param vertexIndices Helper which tells positions in vertexData to start reading vertices
  */
 static struct Surface *read_surface_data(s16 *vertexData, s16 **vertexIndices) {
+    if (vertexData == NULL || vertexIndices == NULL || *vertexIndices == NULL) { return NULL; }
+
     struct Surface *surface;
     register s32 x1, y1, z1;
     register s32 x2, y2, z2;
@@ -594,9 +596,8 @@ u32 get_area_terrain_size(s16 *data) {
  * boxes (water, gas, JRB fog).
  */
 void load_area_terrain(s16 index, s16 *data, s8 *surfaceRooms, s16 *macroObjects) {
-    s16 terrainLoadType;
+    s16 terrainLoadType = 0;
-    s16 *vertexData;
+    s16 *vertexData = NULL;
-    UNUSED s32 unused;
 
     // Initialize the data for this.
     gEnvironmentRegions = NULL;

src/game/area.c

@@ -309,13 +309,15 @@ void unload_mario_area(void) {
 }
 
 void change_area(s32 index) {
-    s32 areaFlags = gCurrentArea->flags;
+    s32 areaFlags = (gCurrentArea != NULL) ? gCurrentArea->flags : 0;
 
     if (gCurrAreaIndex != index) {
         unload_area();
         load_area(index);
 
+        if (gCurrentArea != NULL) {
             gCurrentArea->flags = areaFlags;
+        }
         for (int i = 0; i < MAX_PLAYERS; i++) {
             gMarioStates[i].marioObj->oActiveParticleFlags = 0;
         }

src/game/camera.c

@@ -1451,7 +1451,7 @@ s32 update_fixed_camera(struct Camera *c, Vec3f focus, UNUSED Vec3f pos) {
     f32 focusFloorOff;
     f32 goalHeight;
     f32 ceilHeight;
-    f32 heightOffset;
+    f32 heightOffset = 0;
     f32 distCamToFocus;
     UNUSED u8 filler2[8];
     f32 scaleToMario = 0.5f;
@@ -4917,7 +4917,7 @@ void play_sound_if_cam_switched_to_lakitu_or_mario(void) {
  * Handles input for radial, outwards radial, parallel tracking, and 8 direction mode.
  */
 s32 radial_camera_input(struct Camera *c, UNUSED f32 unused) {
-    s16 dummy;
+    s16 dummy = 0;
 
     if ((gCameraMovementFlags & CAM_MOVE_ENTERED_ROTATE_SURFACE) || !(gCameraMovementFlags & CAM_MOVE_ROTATE)) {
 
@@ -5160,7 +5160,7 @@ s32 determine_dance_cutscene(UNUSED struct Camera *c) {
  * @return `pullResult` or `pushResult` depending on Mario's door action
  */
 u8 open_door_cutscene(u8 pullResult, u8 pushResult) {
-    s16 result;
+    s16 result = 0;
 
     if (sMarioCamState->action == ACT_PULLING_DOOR) {
         result = pullResult;
@@ -11286,7 +11286,7 @@ struct CutsceneSplinePoint sCcmOutsideCreditsSplineFocus[] = {
 void play_cutscene(struct Camera *c) {
     UNUSED u32 pad[3];
     UNUSED s16 unusedYawFocToMario;
-    s16 cutsceneDuration;
+    s16 cutsceneDuration = 0;
     u8 oldCutscene;
 
     unusedYawFocToMario = sAreaYaw;

src/game/envfx_bubbles.c

@@ -520,10 +520,10 @@ Gfx *envfx_update_bubble_particles(s32 mode, UNUSED Vec3s marioPos, Vec3s camFro
     s32 i;
     s16 radius, pitch, yaw;
 
-    Vec3s vertex1;
+    Vec3s vertex1 = { 0 };
-    Vec3s vertex2;
+    Vec3s vertex2 = { 0 };
-    Vec3s vertex3;
+    Vec3s vertex3 = { 0 };
-    Vec3s interpolatedVertices[3];
+    Vec3s interpolatedVertices[3] = { 0 };
 
     static Vec3s prevVertex1;
     static Vec3s prevVertex2;

src/game/ingame_menu.c

@@ -1818,12 +1818,12 @@ s8 gDialogCourseActNum = 1;
 
 void render_dialog_entries(void) {
 #ifdef VERSION_EU
-    s8 lowerBound;
+    s8 lowerBound = 0;
 #endif
     void **dialogTable;
     struct DialogEntry *dialog;
 #ifdef VERSION_US
-    s8 lowerBound;
+    s8 lowerBound = 0;
 #endif
 #ifdef VERSION_EU
     gInGameLanguage = eu_get_language();

src/game/level_update.c

@@ -756,7 +756,7 @@ static void initiate_painting_warp_node(struct WarpNode *pWarpNode) {
  * Check is Mario has entered a painting, and if so, initiate a warp.
  */
 void initiate_painting_warp(void) {
-    if (gCurrentArea->paintingWarpNodes != NULL && gMarioState->floor != NULL) {
+    if (gCurrentArea != NULL && gCurrentArea->paintingWarpNodes != NULL && gMarioState->floor != NULL) {
         struct WarpNode *pWarpNode = get_painting_warp_node();
 
         if (pWarpNode != NULL) {

src/game/mario.c

@@ -242,7 +242,7 @@ void update_mario_pos_for_anim(struct MarioState *m) {
  * Finds the vertical translation from Mario's animation.
  */
 s16 return_mario_anim_y_translation(struct MarioState *m) {
-    Vec3s translation;
+    Vec3s translation = { 0 };
     find_mario_anim_flags_and_translation(m->marioObj, 0, translation);
 
     return translation[1];

src/game/mario_actions_airborne.c

@@ -523,7 +523,7 @@ s32 act_backflip(struct MarioState *m) {
 }
 
 s32 act_freefall(struct MarioState *m) {
-    s32 animation;
+    s32 animation = 0;
 
     if (m->input & INPUT_B_PRESSED) {
         return set_mario_action(m, ACT_DIVE, 0);
@@ -1033,7 +1033,7 @@ s32 act_burning_fall(struct MarioState *m) {
 }
 
 s32 act_crazy_box_bounce(struct MarioState *m) {
-    f32 minSpeed;
+    f32 minSpeed = 32;
 
     if (m->actionTimer == 0) {
         switch (m->actionArg) {

src/game/mario_actions_cutscene.c

@@ -966,9 +966,9 @@ s32 act_unlocking_star_door(struct MarioState *m) {
 }
 
 s32 act_entering_star_door(struct MarioState *m) {
-    f32 targetDX;
+    f32 targetDX = 0;
-    f32 targetDZ;
+    f32 targetDZ = 0;
-    s16 targetAngle;
+    s16 targetAngle = 0;
 
     if (m->actionTimer++ == 0) {
         if (m->interactObj != NULL) {

src/game/mario_actions_moving.c

@@ -166,6 +166,8 @@ void update_sliding_angle(struct MarioState *m, f32 accel, f32 lossFactor) {
     s16 facingDYaw;
 
     struct Surface *floor = m->floor;
+    if (floor == NULL) { return; }
+
     s16 slopeAngle = atan2s(floor->normal.z, floor->normal.x);
     f32 steepness = sqrtf(floor->normal.x * floor->normal.x + floor->normal.z * floor->normal.z);
     UNUSED f32 normalY = floor->normal.y;
@@ -289,6 +291,7 @@ void apply_slope_accel(struct MarioState *m) {
     f32 slopeAccel;
 
     struct Surface *floor = m->floor;
+    if (floor == NULL) { return; }
     f32 steepness = sqrtf(floor->normal.x * floor->normal.x + floor->normal.z * floor->normal.z);
 
     UNUSED f32 normalY = floor->normal.y;
@@ -380,7 +383,7 @@ void update_shell_speed(struct MarioState *m) {
         m->forwardVel += 1.1f;
     } else if (m->forwardVel <= targetSpeed) {
         m->forwardVel += 1.1f - m->forwardVel / 58.0f;
-    } else if (m->floor->normal.y >= 0.95f) {
+    } else if (m->floor != NULL && m->floor->normal.y >= 0.95f) {
         m->forwardVel -= 1.0f;
     }
 
@@ -456,7 +459,7 @@ void update_walking_speed(struct MarioState *m) {
         m->forwardVel += 1.1f;
     } else if (m->forwardVel <= targetSpeed) {
         m->forwardVel += 1.1f - m->forwardVel / 43.0f;
-    } else if (m->floor->normal.y >= 0.95f) {
+    } else if (m->floor != NULL && m->floor->normal.y >= 0.95f) {
         m->forwardVel -= 1.0f;
     }
 

src/game/mario_actions_stationary.c

@@ -184,7 +184,7 @@ void play_anim_sound(struct MarioState *m, u32 actionState, s32 animFrame, u32 s
 
 s32 act_start_sleeping(struct MarioState *m) {
 #ifndef VERSION_JP
-    s32 animFrame;
+    s32 animFrame = 0;
 #endif
 
     if (check_common_idle_cancels(m)) {

src/game/mario_actions_submerged.c

@@ -1132,7 +1132,7 @@ static void update_metal_water_walking_speed(struct MarioState *m) {
         m->forwardVel += 1.1f;
     } else if (m->forwardVel <= val) {
         m->forwardVel += 1.1f - m->forwardVel / 43.0f;
-    } else if (m->floor->normal.y >= 0.95f) {
+    } else if (m->floor != NULL && m->floor->normal.y >= 0.95f) {
         m->forwardVel -= 1.0f;
     }
 

src/game/moving_texture.c

@@ -860,7 +860,7 @@ Gfx *geo_movtex_draw_nocolor(s32 callContext, struct GraphNode *node, UNUSED Mat
  */
 Gfx *geo_movtex_draw_colored(s32 callContext, struct GraphNode *node, UNUSED Mat4 mtx) {
     s32 i;
-    s16 *movtexVerts;
+    s16 *movtexVerts = NULL;
     struct GraphNodeGenerated *asGenerated;
     Gfx *gfx = NULL;
 
@@ -872,6 +872,7 @@ Gfx *geo_movtex_draw_colored(s32 callContext, struct GraphNode *node, UNUSED Mat
                 asGenerated->fnNode.node.flags =
                     (asGenerated->fnNode.node.flags & 0xFF) | (gMovtexColored[i].layer << 8);
                 movtexVerts = segmented_to_virtual(gMovtexColored[i].movtexVerts);
+                if (movtexVerts == NULL) { continue; }
                 update_moving_texture_offset(movtexVerts, MOVTEX_ATTR_COLORED_S);
                 gfx = movtex_gen_list(movtexVerts, &gMovtexColored[i], MOVTEX_LAYOUT_COLORED);
                 break;
@@ -952,7 +953,7 @@ Gfx *geo_movtex_draw_colored_2_no_update(s32 callContext, struct GraphNode *node
  * Note that the final TTC only has one big treadmill though.
  */
 Gfx *geo_movtex_update_horizontal(s32 callContext, struct GraphNode *node, UNUSED Mat4 mtx) {
-    void *movtexVerts;
+    void *movtexVerts = NULL;
 
     if (callContext == GEO_CONTEXT_RENDER) {
         struct GraphNodeGenerated *asGenerated = (struct GraphNodeGenerated *) node;
@@ -971,7 +972,9 @@ Gfx *geo_movtex_update_horizontal(s32 callContext, struct GraphNode *node, UNUSE
                 movtexVerts = segmented_to_virtual(ttc_movtex_tris_small_surface_treadmill);
                 break;
         }
+        if (movtexVerts != NULL) {
             update_moving_texture_offset(movtexVerts, MOVTEX_ATTR_COLORED_S);
         }
+    }
     return NULL;
 }

src/game/object_helpers.c

@@ -454,7 +454,8 @@ s16 obj_angle_to_point(struct Object *obj, f32 pointX, f32 pointZ) {
 s16 obj_turn_toward_object(struct Object *obj, struct Object *target, s16 angleIndex, s16 turnAmount) {
     f32 a, b, c, d;
     UNUSED s32 unused;
-    s16 targetAngle, startAngle;
+    s16 targetAngle = 0;
+    s16 startAngle = 0;
 
     switch (angleIndex) {
         case O_MOVE_ANGLE_PITCH_INDEX:
@@ -1316,7 +1317,7 @@ void cur_obj_apply_drag_xz(f32 dragStrength) {
 }
 
 static s32 cur_obj_move_xz(f32 steepSlopeNormalY, s32 careAboutEdgesAndSteepSlopes) {
-    struct Surface *intendedFloor;
+    struct Surface *intendedFloor = NULL;
 
     f32 intendedX = o->oPosX + o->oVelX;
     f32 intendedZ = o->oPosZ + o->oVelZ;
@@ -1350,7 +1351,7 @@ static s32 cur_obj_move_xz(f32 steepSlopeNormalY, s32 careAboutEdgesAndSteepSlop
             // Don't walk off an edge
             o->oMoveFlags |= OBJ_MOVE_HIT_EDGE;
             return FALSE;
-        } else if (intendedFloor->normal.y > steepSlopeNormalY) {
+        } else if (intendedFloor != NULL && intendedFloor->normal.y > steepSlopeNormalY) {
             // Allow movement onto a slope, provided it's not too steep
             o->oPosX = intendedX;
             o->oPosZ = intendedZ;
@@ -1360,7 +1361,7 @@ static s32 cur_obj_move_xz(f32 steepSlopeNormalY, s32 careAboutEdgesAndSteepSlop
             o->oMoveFlags |= OBJ_MOVE_HIT_EDGE;
             return FALSE;
         }
-    } else if ((ny = intendedFloor->normal.y) > steepSlopeNormalY || o->oPosY > intendedFloorHeight) {
+    } else if (intendedFloor != NULL && ((ny = intendedFloor->normal.y) > steepSlopeNormalY || o->oPosY > intendedFloorHeight)) {
         // Allow movement upward, provided either:
         // - The target floor is flat enough (e.g. walking up stairs)
         // - We are above the target floor (most likely in the air)

src/game/paintings.c

@@ -703,7 +703,9 @@ void painting_generate_mesh(struct Painting *painting, s16 *mesh, s16 numTris) {
 
     gPaintingMesh = mem_pool_alloc(gEffectsMemoryPool, numTris * sizeof(struct PaintingMeshVertex));
     if (gPaintingMesh == NULL) {
+        return;
     }
+
     // accesses are off by 1 since the first entry is the number of vertices
     for (i = 0; i < numTris; i++) {
         gPaintingMesh[i].pos[0] = mesh[i * 3 + 1];
@@ -735,7 +737,9 @@ void painting_calculate_triangle_normals(s16 *mesh, s16 numVtx, s16 numTris) {
 
     gPaintingTriNorms = mem_pool_alloc(gEffectsMemoryPool, numTris * sizeof(Vec3f));
     if (gPaintingTriNorms == NULL) {
+        return;
     }
+
     for (i = 0; i < numTris; i++) {
         s16 tri = numVtx * 3 + i * 3 + 2; // Add 2 because of the 2 length entries preceding the list
         s16 v0 = mesh[tri];
@@ -864,6 +868,11 @@ Gfx *render_painting(u8 *img, s16 tWidth, s16 tHeight, s16 *textureMap, s16 mapV
     Gfx *gfx = dlist;
 
     if (verts == NULL || dlist == NULL) {
+        return NULL;
+    }
+
+    if (img == NULL) {
+        return NULL;
     }
 
     gLoadBlockTexture(gfx++, tWidth, tHeight, G_IM_FMT_RGBA, img);
@@ -950,6 +959,7 @@ Gfx *painting_model_view_transform(struct Painting *painting) {
     Gfx *gfx = dlist;
 
     if (rotX == NULL || rotY == NULL || translate == NULL || dlist == NULL) {
+        return NULL;
     }
 
     guTranslate(translate, painting->posX, painting->posY, painting->posZ);
@@ -1055,7 +1065,7 @@ Gfx *display_painting_rippling(struct Painting *painting) {
     s16 *neighborTris = segmented_to_virtual(seg2_painting_mesh_neighbor_tris);
     s16 numVtx = mesh[0];
     s16 numTris = mesh[numVtx * 3 + 1];
-    Gfx *dlist;
+    Gfx *dlist = NULL;
 
     // Generate the mesh and its lighting data
     painting_generate_mesh(painting, mesh, numVtx);

src/game/shadow.c

@@ -201,7 +201,7 @@ f32 get_water_level_below_shadow(struct Shadow *s) {
  *                          be dimmed based on its distance to the floor
  */
 s8 init_shadow(struct Shadow *s, f32 xPos, f32 yPos, f32 zPos, s16 shadowScale, u8 overwriteSolidity) {
-    f32 waterLevel;
+    f32 waterLevel = 0;
     f32 floorSteepness;
     struct FloorGeometry *floorGeometry;
 
@@ -312,7 +312,7 @@ void make_shadow_vertex_at_xyz(Vtx *vertices, s8 index, f32 relX, f32 relY, f32
         vtxY += 5;
         vtxZ += 5;
     }
-    make_vertex(vertices, index, vtxX, vtxY, vtxZ, textureX << 5, textureY << 5, 255, 255, 255,
+    make_vertex(vertices, index, vtxX, vtxY, vtxZ, (u16)textureX << 5, (u16)textureY << 5, 255, 255, 255,
                 alpha // shadows are black
     );
 }

src/goddard/debug_utils.c

@@ -837,7 +837,7 @@ s32 is_newline(char c) {
 
 /* 23CBA8 -> 23CCF0; orig name: func_8018E3D8 */
 s32 gd_fread_line(char *buf, u32 size, struct GdFile *f) {
-    signed char c;
+    signed char c = 0;
     u32 pos = 0;
     UNUSED u32 pad1c;
 

src/goddard/joints.c

@@ -657,7 +657,7 @@ void func_80190574(s32 a0, struct ObjJoint *a1, struct ObjJoint *a2, f32 x, f32
     UNUSED u32 pad268;
     UNUSED u32 sp264 = 0;
     UNUSED u32 sp258[3]; // unused vec?
-    struct GdVec3f sp24C;
+    struct GdVec3f sp24C = { 0 };
     struct GdVec3f sp240;
     UNUSED u32 pad238[2];
     s32 sp234; // i?

src/goddard/renderer.c

@@ -888,7 +888,7 @@ void gd_printf(const char *format, ...) {
     UNUSED u32 pad150;
     char buf[0x100]; // 50
     char *csr = buf; // 4c
-    char spec[8];    // 44; goddard specifier string
+    char spec[8] = { 0 };    // 44; goddard specifier string
     UNUSED u32 pad40;
     union PrintVal val; // 38;
     va_list args;       // 34

src/goddard/shape_helper.c

@@ -745,8 +745,8 @@ void get_OBJ_shape(struct ObjShape *shape) {
     s32 faceVtxIndex;
     struct GdVec3f tempVec;
     struct ObjFace *newFace;
-    struct ObjVertex *vtxArr[4000];
+    struct ObjVertex *vtxArr[4000] = { 0 };
-    struct ObjFace *faceArr[4000];
+    struct ObjFace *faceArr[4000] = { 0 };
     s32 faceCount = 0;
     s32 vtxCount = 0;
 
@@ -1065,7 +1065,7 @@ struct GdFile *get_shape_from_file(struct ObjShape *shape, char *fileName) {
 /* @ 247F78 for 0x69c; orig name: Unknown801997A8 */
 struct ObjShape *make_grid_shape(enum ObjTypeFlag gridType, s32 a1, s32 a2, s32 a3, s32 a4) {
     UNUSED u32 pad1074;
-    void *objBuf[32][32]; // vertex or particle depending on gridType
+    void *objBuf[32][32] = { 0 }; // vertex or particle depending on gridType
     f32 sp70;
     f32 sp6C;
     f32 sp68;
@@ -1156,13 +1156,17 @@ struct ObjShape *make_grid_shape(enum ObjTypeFlag gridType, s32 a1, s32 a2, s32
 
     if (gridType == OBJ_TYPE_PARTICLES) {
         for (parI = 0; parI <= a3; parI++) {
-            ((struct ObjParticle *) objBuf[parI][0])->unk54 |= 2;
+            struct ObjParticle* p1 = ((struct ObjParticle *) objBuf[parI][0]);
-            ((struct ObjParticle *) objBuf[parI][a4])->unk54 |= 2;
+            if (p1 != NULL) { p1->unk54 |= 2; }
+            struct ObjParticle* p2 =  ((struct ObjParticle *) objBuf[parI][a4]);
+            if (p2 != NULL) { p2->unk54 |= 2; }
         }
 
         for (parI = 0; parI <= a4; parI++) {
-            ((struct ObjParticle *) objBuf[0][parI])->unk54 |= 2;
+            struct ObjParticle* p1 = ((struct ObjParticle *) objBuf[0][parI]);
-            ((struct ObjParticle *) objBuf[a3][parI])->unk54 |= 2;
+            if (p1 != NULL) { p1->unk54 |= 2; }
+            struct ObjParticle* p2 = ((struct ObjParticle *) objBuf[a3][parI]);
+            if (p2 != NULL) { p2->unk54 |= 2; }
         }
     }
 

src/menu/level_select_menu.c

@@ -207,7 +207,7 @@ s32 intro_play_its_a_me_mario(void) {
 }
 
 s32 lvl_intro_update(s16 arg1, UNUSED s32 arg2) {
-    s32 retVar;
+    s32 retVar = 0;
 
     switch (arg1) {
         case 0:

src/menu/star_select.c

@@ -114,7 +114,7 @@ void bhv_act_selector_init(void) {
     if (gCurrCourseNum == 0) { return; }
 
     s16 i = 0;
-    s32 selectorModelIDs[10];
+    s32 selectorModelIDs[10] = { 0 };
     u8 stars = save_file_get_star_flags(gCurrSaveFileNum - 1, gCurrCourseNum - 1);
 
     sVisibleStars = 0;

src/pc/controller/controller_sdl1.c

@@ -275,7 +275,7 @@ static u32 controller_sdl_rawkey(void) {
         return ret;
     }
 
-    for (int i = 0; i < MAX_MOUSEBUTTONS; ++i) {
+    for (u32 i = 1; i < MAX_MOUSEBUTTONS; ++i) {
         if (last_mouse & SDL_BUTTON(i)) {
             const u32 ret = VK_OFS_SDL_MOUSE + i;
             last_mouse = 0;

src/pc/controller/controller_sdl2.c

@@ -310,7 +310,7 @@ static u32 controller_sdl_rawkey(void) {
         return ret;
     }
 
-    for (int i = 0; i < MAX_MOUSEBUTTONS; ++i) {
+    for (u32 i = 1; i < MAX_MOUSEBUTTONS; ++i) {
         if (last_mouse & SDL_BUTTON(i)) {
             const u32 ret = VK_OFS_SDL_MOUSE + i;
             last_mouse = 0;

src/pc/fs/fs_packtype_zip.c

@@ -436,8 +436,12 @@ static bool pack_zip_seek(UNUSED void *pack, fs_file_t *file, const int64_t ofs)
             if (inflateInit2(&zstream, -MAX_WBITS) != Z_OK)
                 return false;
             // reset the underlying file handle back to the start
-            if (fseek(zipfile->fstream, ent->ofs, SEEK_SET) != 0)
+            if (fseek(zipfile->fstream, ent->ofs, SEEK_SET) != 0) {
+                if (zstream.zfree) {
+                    zstream.zfree(zstream.opaque, zstream.state);
+                }
                 return false;
+            }
             // free and replace the old one
             inflateEnd(&zipfile->zstream);
             memcpy(&zipfile->zstream, &zstream, sizeof(zstream));

src/pc/gfx/gfx_opengl.c

@@ -627,7 +627,8 @@ static void gfx_opengl_init(void) {
     if (!tex_cache) sys_fatal("out of memory allocating texture cache");
 
     // check GL version
-    int vmajor, vminor;
+    int vmajor = 0;
+    int vminor = 0;
     bool is_es = false;
     gl_get_version(&vmajor, &vminor, &is_es);
     if (vmajor < 2 && vminor < 1 && !is_es)

src/pc/gfx/gfx_pc.c

@@ -1239,7 +1239,7 @@ static void gfx_dp_load_block(uint8_t tile, uint32_t uls, uint32_t ult, uint32_t
     SUPPORT_CHECK(ult == 0);
     
     // The lrs field rather seems to be number of pixels to load
-    uint32_t word_size_shift;
+    uint32_t word_size_shift = 0;
     switch (rdp.texture_to_load.siz) {
         case G_IM_SIZ_4b:
             word_size_shift = 0; // Or -1? It's unused in SM64 anyway.
@@ -1267,7 +1267,7 @@ static void gfx_dp_load_tile(uint8_t tile, uint32_t uls, uint32_t ult, uint32_t
     SUPPORT_CHECK(uls == 0);
     SUPPORT_CHECK(ult == 0);
 
-    uint32_t word_size_shift;
+    uint32_t word_size_shift = 0;
     switch (rdp.texture_to_load.siz) {
         case G_IM_SIZ_4b:
             word_size_shift = 0; // Or -1? It's unused in SM64 anyway.
@@ -1680,6 +1680,7 @@ static void gfx_run_dl(Gfx* cmd) {
             {
                 int32_t lrx, lry, tile, ulx, uly;
                 uint32_t uls, ult, dsdx, dtdy;
+                tile = 0;
 #ifdef F3DEX_GBI_2E
                 lrx = (int32_t)(C0(0, 24) << 8) >> 8;
                 lry = (int32_t)(C1(0, 24) << 8) >> 8;

src/pc/network/discord/discord.c

@@ -186,11 +186,13 @@ static bool ns_discord_initialize(enum NetworkType networkType) {
         }
 
         // set up manager pointers
+        if (app.core != NULL) {
             app.users = app.core->get_user_manager(app.core);
             app.achievements = app.core->get_achievement_manager(app.core);
             app.activities = app.core->get_activity_manager(app.core);
             app.application = app.core->get_application_manager(app.core);
             app.lobbies = app.core->get_lobby_manager(app.core);
+        }
 
         // register launch params
         register_launch_command();

src/pc/network/network.c

@@ -1,10 +1,9 @@
+#include "socket/socket.h"
 #include <stdio.h>
 #include "network.h"
 #include "object_fields.h"
 #include "object_constants.h"
-#include "game/object_list_processor.h"
 #include "behavior_table.h"
-#include "socket/socket.h"
 #ifdef DISCORD_SDK
 #include "discord/discord.h"
 #endif

src/pc/network/packets/packet_lua_sync_table.c

@@ -91,7 +91,7 @@ static bool packet_read_lnt(struct Packet* p, struct LSTNetworkType* lnt) {
                 LOG_ERROR("received lua sync table with invalid value length: %d", valueLength);
                 return false;
             }
-            lnt->value.string = calloc(valueLength + 1, sizeof(u8));
+            lnt->value.string = calloc(valueLength + 1, sizeof(char));
             packet_read(p, lnt->value.string, valueLength * sizeof(u8));
             return true;
         }

src/pc/network/packets/packet_mod_list.c

@@ -104,7 +104,7 @@ void network_receive_mod_list(struct Packet* p) {
         u16 nameLength = 0;
         packet_read(p, &nameLength, sizeof(u16));
 
-        char* name = (char*)calloc(nameLength + 1, sizeof(u8));
+        char* name = (char*)calloc(nameLength + 1, sizeof(char));
         packet_read(p, name, nameLength * sizeof(u8));
 
         u16 size = 0;

src/pc/network/socket/socket.c

@@ -1,5 +1,5 @@
-#include <stdio.h>
 #include "socket.h"
+#include <stdio.h>
 #include "pc/configfile.h"
 #include "pc/debuglog.h"
 #include "pc/djui/djui.h"

src/pc/network/socket/socket.h

@@ -1,14 +1,14 @@
 #ifndef SOCKET_H
 #define SOCKET_H
 
-#include "../network.h"
-
 #ifdef WINSOCK
 #include "socket_windows.h"
 #else
 #include "socket_linux.h"
 #endif
 
+#include "../network.h"
+
 extern struct NetworkSystem gNetworkSystemSocket;
 
 SOCKET socket_initialize(void);

src/pc/network/socket/socket_windows.c

@@ -1,6 +1,6 @@
 #ifdef WINSOCK
-#include <stdio.h>
 #include "socket_windows.h"
+#include <stdio.h>
 #include "pc/debuglog.h"
 
 SOCKET socket_initialize(void) {

src/pc/platform.c

@@ -107,8 +107,8 @@ static inline bool copy_userdata(const char *userdir) {
 
     // also try to copy the config
     path[len] = oldpath[len] = 0;
-    strncat(path, "/" CONFIGFILE_DEFAULT, sizeof(path) - 1);
+    strncat(path, "/" CONFIGFILE_DEFAULT, SYS_MAX_PATH - 1);
-    strncat(oldpath, "/" CONFIGFILE_DEFAULT, sizeof(oldpath) - 1);
+    strncat(oldpath, "/" CONFIGFILE_DEFAULT, SYS_MAX_PATH - 1);
     fs_sys_copy_file(oldpath, path);
 
     return ret;