ld_bss_is_noload (ethteck#305)

* ld_bss_is_noload

* black

CHANGELOG.md

@@ -1,5 +1,12 @@
 # splat Release Notes
 
+### 0.17.4
+
+* New yaml option: `ld_bss_is_noload`
+  * Allows to control if `bss` sections (and derivatived sections) will be put on a `NOLOAD` segment on the generated linker script or not.
+  * Applies to all `bss` (`sbss`, `common`, `scommon`, etc) sections.
+  * Defaults to `True`, meaning `bss` sections will be put on `NOLOAD` segments.
+
 ### 0.17.3
 
 * Move wiki to the `docs` folder

docs/Configuration.md

@@ -392,6 +392,15 @@ Possible values:
 Specifies the starting offset for rom address symbols in the linker script.
 
 
+### ld_bss_is_noload
+
+Allows to control if `bss` sections (and derivatived sections) will be put on a `NOLOAD` segment on the generated linker script or not.
+
+Applies to all `bss` (`sbss`, `common`, `scommon`, etc) sections.
+
+Defaults to `True`, meaning `bss` sections will be put on `NOLOAD` segments.
+
+
 ## C file options
 
 ### create_c_files

segtypes/common/bss.py

@@ -11,6 +11,8 @@ def get_linker_section(self) -> str:
 
     @staticmethod
     def is_noload() -> bool:
+        if not options.opts.ld_bss_is_noload:
+            return False
         return True
 
     def disassemble_data(self, rom_bytes: bytes):

split.py

@@ -25,7 +25,7 @@
 from segtypes.segment import Segment
 from util import log, options, palettes, symbols, relocs
 
-VERSION = "0.17.3"
+VERSION = "0.17.4"
 
 parser = argparse.ArgumentParser(
     description="Split a rom given a rom, a config, and output directory"

util/options.py

@@ -124,6 +124,8 @@ class SplatOpts:
     segment_symbols_style: str
     # Specifies the starting offset for rom address symbols in the linker script.
     ld_rom_start: int
+    # Allows to control if `bss` sections (and derivatived sections) will be put on a `NOLOAD` segment on the generated linker script or not.
+    ld_bss_is_noload: bool
 
     ################################################################################
     # C file options
@@ -413,6 +415,7 @@ def parse_endianness() -> Literal["big", "little"]:
             "segment_symbols_style", str, ["splat", "makerom"], "splat"
         ),
         ld_rom_start=p.parse_opt("ld_rom_start", int, 0),
+        ld_bss_is_noload=p.parse_opt("ld_bss_is_noload", bool, True),
         create_c_files=p.parse_opt("create_c_files", bool, True),
         auto_decompile_empty_functions=p.parse_opt(
             "auto_decompile_empty_functions", bool, True