Improve 'next' segment rom pos finding behavior

CHANGELOG.md

@@ -1,5 +1,8 @@
 # splat Release Notes
 
+### 0.21.2
+* Fix bugs involving segments not having proper end rom positions if followed by segments with "auto" rom addresses; splat will now skip over these properly
+
 ### 0.21.1
 
 * Fix duplicated symbol resolution in symbol_addrs.txt file.

src/splat/scripts/split.py

@@ -56,10 +56,16 @@ def initialize_segments(config_segments: Union[dict, list]) -> List[Segment]:
 
         this_start = Segment.parse_segment_start(seg_yaml)
 
-        if i == len(config_segments) - 1 and Segment.parse_segment_file_path(seg_yaml):
-            next_start: Optional[int] = 0
-        else:
-            next_start = Segment.parse_segment_start(config_segments[i + 1])
+        j = i + 1
+        while j < len(config_segments):
+            next_start = Segment.parse_segment_start(config_segments[j])
+            if next_start is not None:
+                break
+            j += 1
+        if next_start is None:
+            log.error(
+                "Next segment address could not be found. Segments list must end with a rom end pos marker ([0x10000000])"
+            )
 
         if segment_class.is_noload():
             # Pretend bss's rom address is after the last actual rom segment

src/splat/segtypes/common/group.py

@@ -30,11 +30,15 @@ def __init__(
         self.subsegments: List[Segment] = self.parse_subsegments(yaml)
 
     def get_next_seg_start(self, i, subsegment_yamls):
-        return (
-            self.rom_end
-            if i == len(subsegment_yamls) - 1
-            else Segment.parse_segment_start(subsegment_yamls[i + 1])
-        )
+        j = i + 1
+        while j < len(subsegment_yamls):
+            ret = Segment.parse_segment_start(subsegment_yamls[j])
+            if ret is not None:
+                return ret
+            j += 1
+
+        # Fallback
+        return self.rom_end
 
     def parse_subsegments(self, yaml) -> List[Segment]:
         ret: List[Segment] = []