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Add option to enable LTO easily (#5674)

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* Add option to enable LTO easily and disable features that cause compiling errors with LTO

* Add documentation about LTO option

* Add to show_options
This commit is contained in:
Drashna Jaelre 2019-05-02 08:03:42 -07:00 • committed by MechMerlin
parent 55d37d9fbc
commit 7e655a207e
3 changed files with 11 additions and 1 deletions
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7
tmk_core/common.mk
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@ -208,6 +208,13 @@ ifeq ($(strip $(SHARED_EP_ENABLE)), yes)
TMK_COMMON_DEFS += -DSHARED_EP_ENABLE
endif
ifeq ($(strip $(LINK_TIME_OPTIMIZATION_ENABLE)), yes)
EXTRAFLAGS += -flto
TMK_COMMON_DEFS += -DLINK_TIME_OPTIMIZATION_ENABLE
TMK_COMMON_DEFS += -DNO_ACTION_MACRO
TMK_COMMON_DEFS += -DNO_ACTION_FUNCTION
endif
# Bootloader address
ifdef STM32_BOOTLOADER_ADDRESS
TMK_COMMON_DEFS += -DSTM32_BOOTLOADER_ADDRESS=$(STM32_BOOTLOADER_ADDRESS)