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Retain space saving benefits when not using LTO

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bricky149
2023-10-04 22:24:07 +01:00
parent fe949d2ae3
commit 4a05e69e19
2 changed files with 11 additions and 1 deletions
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10
Makefile
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@ -170,9 +170,14 @@ CFLAGS = -Os -Wall -Werror -mcpu=cortex-m0 -fno-builtin -fshort-enums -fno-delet
ifeq ($(ENABLE_LTO), 1)
# CFLAGS += -flto
CFLAGS += -flto=2
else
# We get most of the space savings if LTO creates problems
CFLAGS += -ffunction-sections -fdata-sections
endif
# May cause unhelpful build failures
#CFLAGS += -Wpadded
CFLAGS += -DPRINTF_INCLUDE_CONFIG_H
CFLAGS += -DGIT_HASH=\"$(GIT_HASH)\"
ifeq ($(ENABLE_SWD),1)
@ -280,6 +285,11 @@ LDFLAGS = -mcpu=cortex-m0 -nostartfiles -Wl,-T,firmware.ld
# Use newlib-nano instead of newlib
LDFLAGS += --specs=nano.specs
ifeq ($(ENABLE_LTO), 0)
# Throw away unneeded func/data sections like LTO does
LDFLAGS += -Wl,--gc-sections
endif
ifeq ($(DEBUG),1)
ASFLAGS += -g
CFLAGS += -g