ROM size: misc gcc flags
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keepkeyjon commented
Some misc gcc flags that save around 2k:
diff --git a/cmake/caches/device.cmake b/cmake/caches/device.cmake
index 436a23bc..9f4014b5 100644
--- a/cmake/caches/device.cmake
+++ b/cmake/caches/device.cmake
@@ -22,7 +22,13 @@ set(ARCH_FLAGS
-msoft-float \
-ffunction-sections \
-fdata-sections \
- -fno-common \
+ -fno-exceptions \
+ -fno-unwind-tables \
+ -fno-math-errno \
+ -fcommon \
+ -fno-zero-initialized-in-bss \
+ -fmerge-constants \
+ -fmerge-all-constants \
-fstack-protector-all" CACHE STRING "")
set(WARN_FLAGS
TODO: check validity on each of these. -fno-zero-initialized-in-bss
could, for example, change behavior if assumptions are violated.