esp-idf/components/esp32/component.mk

#
# Component Makefile
#

COMPONENT_SRCDIRS := . hwcrypto
LIBS ?=
ifndef CONFIG_NO_BLOBS
LIBS += core rtc net80211 pp wpa smartconfig coexist wps wpa2 espnow phy mesh
endif

ifdef CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY  
   # This linker script must come before esp32.common.ld
   LINKER_SCRIPTS += esp32.extram.bss.ld
endif

#Linker scripts used to link the final application.
#Warning: These linker scripts are only used when the normal app is compiled; the bootloader
#specifies its own scripts.
LINKER_SCRIPTS += $(COMPONENT_BUILD_DIR)/esp32.common.ld esp32.rom.ld esp32.peripherals.ld

#Force pure functions from libgcc.a to be linked from ROM
LINKER_SCRIPTS += esp32.rom.libgcc.ld

#SPI-RAM incompatible functions can be used in when the SPI RAM 
#workaround is not enabled.
ifndef CONFIG_SPIRAM_CACHE_WORKAROUND
LINKER_SCRIPTS += esp32.rom.spiram_incompatible_fns.ld
endif

ifdef CONFIG_NEWLIB_NANO_FORMAT
LINKER_SCRIPTS += esp32.rom.nanofmt.ld
endif

ifndef CONFIG_SPI_FLASH_ROM_DRIVER_PATCH
LINKER_SCRIPTS += esp32.rom.spiflash.ld
endif

#ld_include_panic_highint_hdl is added as an undefined symbol because otherwise the
#linker will ignore panic_highint_hdl.S as it has no other files depending on any
#symbols in it.
COMPONENT_ADD_LDFLAGS += $(COMPONENT_PATH)/libhal.a \
                         -L$(COMPONENT_PATH)/lib \
                         $(addprefix -l,$(LIBS)) \
                         -L $(COMPONENT_PATH)/ld \
                         -T esp32_out.ld \
                         -u ld_include_panic_highint_hdl \
                         $(addprefix -T ,$(LINKER_SCRIPTS)) \

COMPONENT_ADD_LDFRAGMENTS += ld/esp32_fragments.lf linker.lf

ALL_LIB_FILES := $(patsubst %,$(COMPONENT_PATH)/lib/lib%.a,$(LIBS))

COMPONENT_SUBMODULES += lib

# final linking of project ELF depends on all binary libraries, and
# all linker scripts (except esp32_out.ld, as this is code generated here.)
COMPONENT_ADD_LINKER_DEPS := $(ALL_LIB_FILES) \
                            $(addprefix ld/, $(filter-out $(COMPONENT_BUILD_DIR)/esp32.common.ld, $(LINKER_SCRIPTS))) \
                            $(COMPONENT_BUILD_DIR)/esp32.common.ld

# Preprocess esp32.ld linker script into esp32_out.ld
#
# The library doesn't really depend on esp32_out.ld, but it
# saves us from having to add the target to a Makefile.projbuild
$(COMPONENT_LIBRARY): esp32_out.ld

esp32_out.ld: $(COMPONENT_PATH)/ld/esp32.ld ../include/sdkconfig.h
	$(CC) -I ../include -C -P -x c -E $< -o $@

COMPONENT_EXTRA_CLEAN := esp32_out.ld $(COMPONENT_BUILD_DIR)/esp32.common.ld

# disable stack protection in files which are involved in initialization of that feature
stack_check.o: CFLAGS := $(filter-out -fstack-protector%, $(CFLAGS))
cpu_start.o: CFLAGS := $(filter-out -fstack-protector%, $(CFLAGS))
Initial public version 2016-08-17 15:08:22 +00:00			`#`
			`# Component Makefile`
			`#`

mbedtls: Use hardware accelerated AES, SHA, bignum 2016-09-08 09:41:43 +00:00			`COMPONENT_SRCDIRS := . hwcrypto`
Add --warn-undefined-variables to MAKEFLAGS Fix warnings where undefined vars are used. Make Kconfig emit "FOO=" for unset bool options To ensure make variables are always defined, even if empty. When writing auto.conf, include symbols disabled by dependency to make sure all make variables are always defined. Fixes espressif/esp-idf#137 Cherry-picked from https://github.com/espressif/esp-idf/pull/138 2016-12-03 22:11:22 +00:00			`LIBS ?=`
build system: Restore ifdef/ifndef in Makefiles, clean up examples build 2017-09-05 05:50:31 +00:00			`ifndef CONFIG_NO_BLOBS`
add mesh feature 2018-02-27 10:22:20 +00:00			`LIBS += core rtc net80211 pp wpa smartconfig coexist wps wpa2 espnow phy mesh`
kconfig: Add an option for skipping binary blobs 2017-08-10 05:16:36 +00:00			`endif`
mbedtls: Use hardware accelerated AES, SHA, bignum 2016-09-08 09:41:43 +00:00
doc: update document of external memory 2018-09-21 06:33:18 +00:00			`ifdef CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY`
			`# This linker script must come before esp32.common.ld`
			`LINKER_SCRIPTS += esp32.extram.bss.ld`
			`endif`

Add initial SPI RAM support. This adds support for an ESP-PSRAM32 chip connected to the default flash pins and GPIO 16 and 17. The RAM is mapped to address 0x3F800000, but otherwise ignored by esp-idf as of yet. 2017-07-20 08:26:35 +00:00			`#Linker scripts used to link the final application.`
			`#Warning: These linker scripts are only used when the normal app is compiled; the bootloader`
			`#specifies its own scripts.`
tools: implement linker script generation 2018-04-18 02:57:45 +00:00			`LINKER_SCRIPTS += $(COMPONENT_BUILD_DIR)/esp32.common.ld esp32.rom.ld esp32.peripherals.ld`
ld: add ld for bt/trace, choose different ld by menuconfig 2016-08-19 10:45:49 +00:00
esp32: force pure math functions from libgcc to be linked from ROM 2018-06-28 04:48:31 +00:00			`#Force pure functions from libgcc.a to be linked from ROM`
			`LINKER_SCRIPTS += esp32.rom.libgcc.ld`

Add initial SPI RAM support. This adds support for an ESP-PSRAM32 chip connected to the default flash pins and GPIO 16 and 17. The RAM is mapped to address 0x3F800000, but otherwise ignored by esp-idf as of yet. 2017-07-20 08:26:35 +00:00			`#SPI-RAM incompatible functions can be used in when the SPI RAM`
			`#workaround is not enabled.`
			`ifndef CONFIG_SPIRAM_CACHE_WORKAROUND`
			`LINKER_SCRIPTS += esp32.rom.spiram_incompatible_fns.ld`
			`endif`

build system: Restore ifdef/ifndef in Makefiles, clean up examples build 2017-09-05 05:50:31 +00:00			`ifdef CONFIG_NEWLIB_NANO_FORMAT`
build system: Project ELF should depend on linker scripts, binary libraries TW#7816 2016-12-12 04:54:30 +00:00			`LINKER_SCRIPTS += esp32.rom.nanofmt.ld`
newlib: add "full" formatting support, add missing functions - add two versions of libc: libc.a and libc_nano.a. First one has full C99 formatting support, second one uses “nano” formatting functions available in ROM. - fix linker error for fmod, fmodf, atof, atoff - update tests 2016-11-07 10:43:29 +00:00			`endif`

build system: Restore ifdef/ifndef in Makefiles, clean up examples build 2017-09-05 05:50:31 +00:00			`ifndef CONFIG_SPI_FLASH_ROM_DRIVER_PATCH`
spi_flash: Fixed bug in SPI flash ROM driver to work with embedded flash chip 1) fixed SPI_read_status: added check for flash busy flag in matrix mode 2) fixed SPI_page_program: enable write before writing data to SPI FIFO 3) SPI flash ROM funcs replacement is controlled via menuconfig option 2017-03-09 07:29:00 +00:00			`LINKER_SCRIPTS += esp32.rom.spiflash.ld`
			`endif`

tools: implement linker script generation 2018-04-18 02:57:45 +00:00			`#ld_include_panic_highint_hdl is added as an undefined symbol because otherwise the`
Break out high-level interrupts so a component can override them 2017-04-18 09:14:32 +00:00			`#linker will ignore panic_highint_hdl.S as it has no other files depending on any`
			`#symbols in it.`
build system: Use component.mk for all components, refactor bootloader build For config-only components, component.mk should now contain "COMPONENT_CONFIG_ONLY := 1" Also refactored some of the generation of linker paths, library list. This required cleaning up the way the bootloader project works, it's now mostly independent from the parent. 2017-06-23 04:08:01 +00:00			`COMPONENT_ADD_LDFLAGS += $(COMPONENT_PATH)/libhal.a \`
build system: Project ELF should depend on linker scripts, binary libraries TW#7816 2016-12-12 04:54:30 +00:00			`-L$(COMPONENT_PATH)/lib \`
			`$(addprefix -l,$(LIBS)) \`
			`-L $(COMPONENT_PATH)/ld \`
			`-T esp32_out.ld \`
Break out high-level interrupts so a component can override them 2017-04-18 09:14:32 +00:00			`-u ld_include_panic_highint_hdl \`
tools: implement linker script generation 2018-04-18 02:57:45 +00:00			`$(addprefix -T ,$(LINKER_SCRIPTS)) \`

			`COMPONENT_ADD_LDFRAGMENTS += ld/esp32_fragments.lf linker.lf`
Initial public version 2016-08-17 15:08:22 +00:00
Make: Add some "magic" to try and pull git submodules if missing 2016-08-19 06:20:28 +00:00			`ALL_LIB_FILES := $(patsubst %,$(COMPONENT_PATH)/lib/lib%.a,$(LIBS))`

build system: Refactor SubmoduleCheck to work project-wide Required at project level because some components use header files in other components' submodules, and one component with a submodule (esptool.py) doesn't have or need a component.mk. 2016-11-16 00:12:48 +00:00			`COMPONENT_SUBMODULES += lib`
Make: Add some "magic" to try and pull git submodules if missing 2016-08-19 06:20:28 +00:00
build system: Project ELF should depend on linker scripts, binary libraries TW#7816 2016-12-12 04:54:30 +00:00			`# final linking of project ELF depends on all binary libraries, and`
			`# all linker scripts (except esp32_out.ld, as this is code generated here.)`
tools: implement linker script generation 2018-04-18 02:57:45 +00:00			`COMPONENT_ADD_LINKER_DEPS := $(ALL_LIB_FILES) \`
			`$(addprefix ld/, $(filter-out $(COMPONENT_BUILD_DIR)/esp32.common.ld, $(LINKER_SCRIPTS))) \`
			`$(COMPONENT_BUILD_DIR)/esp32.common.ld`
esp32: Pass memory layout linker script through C preprocessor C preprocessor is a bit icky, but with ULP we will have 3 possible variables influencing the memory layout and 9 linker scripts is too many! 2016-09-21 01:04:16 +00:00
			`# Preprocess esp32.ld linker script into esp32_out.ld`
			`#`
			`# The library doesn't really depend on esp32_out.ld, but it`
			`# saves us from having to add the target to a Makefile.projbuild`
doc: update document of external memory 2018-09-21 06:33:18 +00:00			`$(COMPONENT_LIBRARY): esp32_out.ld`
esp32: Pass memory layout linker script through C preprocessor C preprocessor is a bit icky, but with ULP we will have 3 possible variables influencing the memory layout and 9 linker scripts is too many! 2016-09-21 01:04:16 +00:00
			`esp32_out.ld: $(COMPONENT_PATH)/ld/esp32.ld ../include/sdkconfig.h`
			`$(CC) -I ../include -C -P -x c -E $< -o $@`

tools: implement linker script generation 2018-04-18 02:57:45 +00:00			`COMPONENT_EXTRA_CLEAN := esp32_out.ld $(COMPONENT_BUILD_DIR)/esp32.common.ld`
esp32: Adds Stack Smashing Protection Feature These changes add posibility to enable GCC stack protector via menuconfig for all source files in project. 2017-11-15 08:09:54 +00:00
			`# disable stack protection in files which are involved in initialization of that feature`
			`stack_check.o: CFLAGS := $(filter-out -fstack-protector%, $(CFLAGS))`
add mesh feature 2018-02-27 10:22:20 +00:00			`cpu_start.o: CFLAGS := $(filter-out -fstack-protector%, $(CFLAGS))`