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authorDamien George <damien@micropython.org>2021-02-18 11:51:01 +1100
committerDamien George <damien@micropython.org>2021-02-19 10:42:16 +1100
commit466ad35a725742928ef7b12522cc75929083af35 (patch)
tree96473b52581fcb328e0b4ddfc0a483f3f97e6552
parentd4b45898f58aae66c706ca5f832f11727daef46b (diff)
esp32/boards: Enable size optimisation for builds.
This enables -Os for compilation, but still keeps full assertion messages. With IDF v4.2, -Os changes the GENERIC firmware size from 1512176 down to 1384640, and the GENERIC_SPIRAM firmware is now 1452320 which fits in the allocated partition. Signed-off-by: Damien George <damien@micropython.org>
-rw-r--r--ports/esp32/boards/sdkconfig.base6
1 files changed, 6 insertions, 0 deletions
diff --git a/ports/esp32/boards/sdkconfig.base b/ports/esp32/boards/sdkconfig.base
index c84dd606b..91e68c7bf 100644
--- a/ports/esp32/boards/sdkconfig.base
+++ b/ports/esp32/boards/sdkconfig.base
@@ -4,6 +4,12 @@
CONFIG_IDF_TARGET="esp32"
CONFIG_IDF_FIRMWARE_CHIP_ID=0x0000
+# Compiler options: use -Os to reduce size, but keep full assertions
+# (CONFIG_COMPILER_OPTIMIZATION_LEVEL_RELEASE is for IDF 4.0.2)
+CONFIG_COMPILER_OPTIMIZATION_LEVEL_RELEASE=y
+CONFIG_COMPILER_OPTIMIZATION_SIZE=y
+CONFIG_COMPILER_OPTIMIZATION_ASSERTIONS_ENABLE=y
+
# Application manager
CONFIG_APP_EXCLUDE_PROJECT_VER_VAR=y
CONFIG_APP_EXCLUDE_PROJECT_NAME_VAR=y