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cpu/esp32: fix unknown symbols for unused functions

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Fixes the problem that the compilation of an applications can throw unknown symbol errors for functions that aren't use at all. Thus, it is possible to remove the warning for unknown symbols and the compilation can abort if there are real unknown symbols.
This commit is contained in:
Gunar Schorcht 2019-08-06 07:39:33 +02:00
parent a55e1fcb15
commit e9ecca2c62
1 changed files with 2 additions and 2 deletions
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4
cpu/esp32/Makefile.include
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@ -100,7 +100,7 @@ CFLAGS += -DSDK_NOT_USED -DCONFIG_FREERTOS_UNICORE=1 -DESP_PLATFORM
CFLAGS += -DLOG_TAG_IN_BRACKETS
CFLAGS += -Wno-unused-parameter -Wformat=0
CFLAGS += -mlongcalls -mtext-section-literals -fstrict-volatile-bitfields
CFLAGS += -fdata-sections -fzero-initialized-in-bss
CFLAGS += -fdata-sections -ffunction-sections -fzero-initialized-in-bss
ASFLAGS += --longcalls --text-section-literals
ifneq ($(CONFIGS),)
@ -140,7 +140,7 @@ LINKFLAGS += -T$(RIOTCPU)/$(CPU)/ld/esp32.peripherals.ld
LINKFLAGS += -T$(RIOTCPU)/$(CPU)/ld/esp32.rom.ld
LINKFLAGS += -T$(RIOTCPU)/$(CPU)/ld/esp32.rom.nanofmt.ld
LINKFLAGS += -nostdlib -lgcc -u putchar -Wl,-gc-sections
LINKFLAGS += -Wl,--warn-unresolved-symbols
# The ELFFILE is the base one used for flashing
FLASHFILE ?= $(ELFFILE)