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[Core] Squeeze AVR some more with -mrelax and -mcall-prologues (#16269)

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Stefan Kerkmann 2022-02-27 04:05:03 +01:00 committed by GitHub
parent cb8528c33c
commit 156f0561f2
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1 changed files with 8 additions and 1 deletions
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platforms/avr/platform.mk
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@ -18,6 +18,13 @@ COMPILEFLAGS += -ffunction-sections
COMPILEFLAGS += -fdata-sections
COMPILEFLAGS += -fpack-struct
COMPILEFLAGS += -fshort-enums
COMPILEFLAGS += -mcall-prologues
# Linker relaxation is only possible if
# link time optimizations are not enabled.
ifeq ($(strip $(LTO_ENABLE)), no)
COMPILEFLAGS += -mrelax
endif
ASFLAGS += $(AVR_ASFLAGS)
@ -28,7 +35,7 @@ CFLAGS += -fno-strict-aliasing
CXXFLAGS += $(COMPILEFLAGS)
CXXFLAGS += -fno-exceptions -std=c++11
LDFLAGS +=-Wl,--gc-sections
LDFLAGS += -Wl,--gc-sections
OPT_DEFS += -DF_CPU=$(F_CPU)UL