{bare-arm,minimal,stm32}/mpconfigport.h: Disable super-optimisations.

jimmo · jimmo · commit 62fbbe0ef84f · 2024-01-25T15:35:48.000+11:00
bare-arm, minimal, and stm32-on-CM0 used to disable `CSUPEROPT`. This
re-instates this behavior by disabling
`MICROPY_APPLY_COMPILER_OPTIMISATIONS` instead.

Signed-off-by: Jim Mussared &lt;jim.mussared@gmail.com&gt;
diff --git a/ports/bare-arm/mpconfigport.h b/ports/bare-arm/mpconfigport.h
@@ -37,6 +37,9 @@
 // Python internal features
 #define MICROPY_ERROR_REPORTING                 (MICROPY_ERROR_REPORTING_NONE)
 
+// Just use -Os for everything to generate the smallest possible binary.
+#define MICROPY_APPLY_COMPILER_EXTRA_OPTIMISATIONS(f) f
+
 // Type definitions for the specific machine
 
 typedef int32_t mp_int_t; // must be pointer size
diff --git a/ports/minimal/mpconfigport.h b/ports/minimal/mpconfigport.h
@@ -21,6 +21,9 @@
 // Use the minimum headroom in the chunk allocator for parse nodes.
 #define MICROPY_ALLOC_PARSE_CHUNK_INIT    (16)
 
+// Just use -Os for everything to generate the smallest possible binary.
+#define MICROPY_APPLY_COMPILER_EXTRA_OPTIMISATIONS(f) f
+
 // type definitions for the specific machine
 
 typedef intptr_t mp_int_t; // must be pointer size
diff --git a/ports/stm32/mpconfigport.h b/ports/stm32/mpconfigport.h
@@ -55,6 +55,12 @@
 #define MICROPY_OPT_MAP_LOOKUP_CACHE (__CORTEX_M > 0)
 #endif
 
+#if __CORTEX_M == 0
+// Just use -Os for everything to avoid using extra flash. Using M0 as a stand-in
+// for "likely has small flash", this could be moved to the board config instead.
+#define MICROPY_APPLY_COMPILER_EXTRA_OPTIMISATIONS(f) f
+#endif
+
 // emitters
 #define MICROPY_PERSISTENT_CODE_LOAD (1)
 #ifndef MICROPY_EMIT_THUMB
