我目前正在尝试为nRF52板编译项目。使用make clean时，收到错误消息Makefile.common:12: *** Too many open files. Stop.（Makefile.com的第12行只显示include $(TEMPLATE_PATH)Makefile.posix）。
我可以在线找到解决此问题的每个解决方案都涉及增加系统可以立即打开的文件数量。不幸的是，我尝试将它一直增加到20000（这显然足以使我的计算机上的内存过载），它仍然给出了相同的错误消息。所以我认为这不是一个实际的解决方案，而且这个问题表明makefile本身有问题。有没有导致这种情况发生的罪魁祸首？
如果它很重要，我正在使用Ubuntu 18.04。 makefile粘贴在下面。
TARGETS := nrf52832_xxaa
OUTPUT_DIRECTORY := _build
SDK_ROOT := $(realpath ../../../../../..)
PROJ_DIR := ../../..
$(OUTPUT_DIRECTORY)/nrf52832_xxaa.out: \
LINKER_SCRIPT := ble_app_hrs_gcc_nrf52.ld
# Source files common to all targets
SRC_FILES += \
$(SDK_ROOT)/modules/nrfx/mdk/gcc_startup_nrf52.S \
$(SDK_ROOT)/components/libraries/button/app_button.c \
$(SDK_ROOT)/components/libraries/util/app_error.c \
$(SDK_ROOT)/components/libraries/util/app_error_weak.c \
$(SDK_ROOT)/components/libraries/scheduler/app_scheduler.c \
$(SDK_ROOT)/components/libraries/timer/app_timer.c \
$(SDK_ROOT)/components/libraries/util/app_util_platform.c \
$(SDK_ROOT)/components/libraries/crc16/crc16.c \
$(SDK_ROOT)/components/libraries/fds/fds.c \
$(SDK_ROOT)/components/libraries/hardfault/hardfault_implementation.c \
$(SDK_ROOT)/components/libraries/util/nrf_assert.c \
$(SDK_ROOT)/components/libraries/fstorage/fstorage.c \
$(SDK_ROOT)/components/libraries/experimental_memobj/nrf_memobj.c \
$(SDK_ROOT)/components/libraries/pwr_mgmt/nrf_pwr_mgmt.c \
$(SDK_ROOT)/components/libraries/sensorsim/sensorsim.c \
$(SDK_ROOT)/components/drivers_nrf/nrf_drv_clock.c \
$(SDK_ROOT)/components/drivers_nrf/nrfx_drv_gpiote.c \
$(SDK_ROOT)/components/drivers_nrf/nrfx_uart.c \
$(PROJ_DIR)/main.c \
$(SDK_ROOT)/external/segger_rtt/SEGGER_RTT.c \
$(SDK_ROOT)/external/segger_rtt/SEGGER_RTT_Syscalls_GCC.c \
$(SDK_ROOT)/external/segger_rtt/SEGGER_RTT_printf.c \
$(SDK_ROOT)/components/ble/common/ble_advdata.c \
$(SDK_ROOT)/components/ble/ble_advertising/ble_advertising.c \
$(SDK_ROOT)/components/ble/common/ble_conn_params.c \
$(SDK_ROOT)/components/ble/common/ble_conn_state.c \
$(SDK_ROOT)/components/ble/common/ble_srv_common.c \
$(SDK_ROOT)/components/ble/peer_manager/gatt_cache_manager.c \
$(SDK_ROOT)/components/ble/peer_manager/gatts_cache_manager.c \
$(SDK_ROOT)/components/ble/peer_manager/id_manager.c \
$(SDK_ROOT)/components/ble/peer_manager/peer_data_storage.c \
$(SDK_ROOT)/components/ble/peer_manager/peer_database.c \
$(SDK_ROOT)/components/ble/peer_manager/peer_id.c \
$(SDK_ROOT)/components/ble/peer_manager/peer_manager.c \
$(SDK_ROOT)/components/ble/peer_manager/pm_buffer.c \
$(SDK_ROOT)/components/ble/peer_manager/pm_mutex.c \
$(SDK_ROOT)/components/ble/peer_manager/security_dispatcher.c \
$(SDK_ROOT)/components/ble/peer_manager/security_manager.c \
$(SDK_ROOT)/components/ble/ble_services/ble_bas/ble_bas.c \
$(SDK_ROOT)/components/ble/ble_services/ble_dis/ble_dis.c \
$(SDK_ROOT)/components/ble/ble_services/ble_hrs/ble_hrs.c \
$(SDK_ROOT)/components/softdevice/common/softdevice_handler/softdevice_handler.c \
$(SDK_ROOT)/components/softdevice/common/softdevice_handler/softdevice_handler_appsh.c \
$(SDK_ROOT)/components/nfc/ndef/connection_handover/nfc_ble_pair_msg.c \
# Include folders common to all targets
INC_FOLDERS += \
$(SDK_ROOT)/components/nfc/ndef/generic/message \
$(SDK_ROOT)/components/nfc/t2t_lib \
$(SDK_ROOT)/components/ble/ble_services/ble_ancs_c \
$(SDK_ROOT)/components/ble/ble_services/ble_ias_c \
$(SDK_ROOT)/components/libraries/pwm \
$(SDK_ROOT)/components/softdevice/s132/headers/nrf52 \
$(SDK_ROOT)/components/drivers_nrf/hal \
$(SDK_ROOT)/components/ble/ble_services/ble_gls \
$(SDK_ROOT)/components/libraries/fstorage \
$(SDK_ROOT)/components/nfc/ndef/text \
$(SDK_ROOT)/components/libraries/gpiote \
$(SDK_ROOT)/components/libraries/bootloader_dfu \
$(SDK_ROOT)/components/nfc/ndef/connection_handover \
$(SDK_ROOT)/components/nfc/ndef/generic/record \
$(SDK_ROOT)/components/ble/ble_advertising \
$(SDK_ROOT)/components/ble/ble_services/ble_bas_c \
$(SDK_ROOT)/modules/nrfx/drivers/include \
$(SDK_ROOT)/components/libraries/experimental_task_manager \
$(SDK_ROOT)/components/ble/ble_services/ble_hrs_c \
$(SDK_ROOT)/components/nfc/ndef/connection_handover/le_oob_rec \
$(SDK_ROOT)/components/libraries/queue \
$(SDK_ROOT)/components/libraries/pwr_mgmt \
$(SDK_ROOT)/components/ble/ble_dtm \
$(SDK_ROOT)/components/toolchain/CMSIS/include \
$(SDK_ROOT)/components/ble/ble_services/ble_rscs_c \
$(SDK_ROOT)/components/ble/common \
$(SDK_ROOT)/components/ble/ble_services/ble_lls \
$(SDK_ROOT)/components/nfc/ndef/connection_handover/ac_rec \
$(SDK_ROOT)/components/ble/ble_services/ble_bas \
$(SDK_ROOT)/components/libraries/experimental_section_vars \
$(SDK_ROOT)/components/softdevice/s132/headers \
$(SDK_ROOT)/components/ble/ble_services/ble_ans_c \
$(SDK_ROOT)/components/libraries/slip \
$(SDK_ROOT)/components/drivers_nrf/delay \
$(SDK_ROOT)/components/libraries/mem_manager \
$(SDK_ROOT)/components/ble/ble_services/ble_nus_c \
$(SDK_ROOT)/components/softdevice/common \
$(SDK_ROOT)/components/ble/ble_services/ble_ias \
$(SDK_ROOT)/components/libraries/low_power_pwm \
$(SDK_ROOT)/components/nfc/ndef/connection_handover/ep_oob_rec \
$(SDK_ROOT)/components/nfc/ndef/parser/message \
$(SDK_ROOT)/components/nfc/ndef/parser/record \
$(SDK_ROOT)/components/ble/ble_services/ble_dfu \
$(SDK_ROOT)/components \
$(SDK_ROOT)/components/libraries/scheduler \
$(SDK_ROOT)/components/ble/ble_services/ble_lbs \
$(SDK_ROOT)/components/ble/ble_services/ble_hts \
$(SDK_ROOT)/components/libraries/crc16 \
$(SDK_ROOT)/components/nfc/t2t_parser \
$(SDK_ROOT)/components/libraries/util \
../config \
$(SDK_ROOT)/components/libraries/ecc \
$(SDK_ROOT)/components/libraries/hardfault \
$(SDK_ROOT)/components/ble/ble_services/ble_cscs \
$(SDK_ROOT)/components/libraries/hci \
$(SDK_ROOT)/components/libraries/timer \
$(SDK_ROOT)/components/libraries/led_softblink \
$(SDK_ROOT)/components/nfc/ndef/parser \
$(SDK_ROOT)/components/nfc/ndef/connection_handover \
$(SDK_ROOT)/components/ble/ble_services/ble_cts_c \
$(SDK_ROOT)/components/nfc/ndef/connection_handover/le_oob_rec \
$(SDK_ROOT)/components/ble/ble_services/ble_nus \
$(SDK_ROOT)/components/libraries/twi_mngr \
$(SDK_ROOT)/components/ble/ble_services/ble_hids \
$(SDK_ROOT)/components/libraries/strerror \
$(SDK_ROOT)/components/libraries/crc32 \
$(SDK_ROOT)/components/nfc/ndef/connection_handover/ble_oob_advdata \
$(SDK_ROOT)/components/libraries/usbd/class/audio \
$(SDK_ROOT)/components/libraries/sensorsim \
$(SDK_ROOT)/components/nfc/t2t_lib \
$(SDK_ROOT)/components/ble/peer_manager \
$(SDK_ROOT)/components/ble/ble_services/ble_tps \
$(SDK_ROOT)/components/ble/ble_services/ble_dis \
$(SDK_ROOT)/components/nfc/ndef/uri \
$(SDK_ROOT)/components/libraries/button \
$(SDK_ROOT)/components/libraries/twi \
$(SDK_ROOT)/components/nfc/ndef/connection_handover/ep_oob_rec \
$(SDK_ROOT)/external/segger_rtt \
$(SDK_ROOT)/components/ble/ble_services/ble_lbs_c \
$(SDK_ROOT)/components/libraries/sha256 \
$(SDK_ROOT)/components/ble/ble_racp \
$(SDK_ROOT)/components/libraries/fds \
$(SDK_ROOT)/components/nfc/ndef/launchapp \
$(SDK_ROOT)/components/ble/ble_services/ble_rscs \
$(SDK_ROOT)/components/nfc/ndef/connection_handover/hs_rec \
$(SDK_ROOT)/components/nfc/t2t_lib/hal_t2t \
$(SDK_ROOT)/components/nfc/ndef/connection_handover/ac_rec \
$(SDK_ROOT)/components/ble/ble_services/ble_hrs \
# Libraries common to all targets
LIB_FILES += \
# Optimization flags
OPT = -O3 -g3
# Uncomment the line below to enable link time optimization
#OPT += -flto
# C flags common to all targets
CFLAGS += $(OPT)
CFLAGS += -DBLE_STACK_SUPPORT_REQD
CFLAGS += -DBOARD_PCA10040
CFLAGS += -DCONFIG_GPIO_AS_PINRESET
CFLAGS += -DFLOAT_ABI_HARD
CFLAGS += -DNRF52
CFLAGS += -DNRF52832_XXAA
CFLAGS += -DNRF52_PAN_74
CFLAGS += -DNRF_SD_BLE_API_VERSION=6
CFLAGS += -DS132
CFLAGS += -DSOFTDEVICE_PRESENT
CFLAGS += -DSWI_DISABLE0
CFLAGS += -mcpu=cortex-m4
CFLAGS += -mthumb -mabi=aapcs
CFLAGS += -Wall -Werror
CFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
# keep every function in a separate section, this allows linker to discard unused ones
CFLAGS += -ffunction-sections -fdata-sections -fno-strict-aliasing
CFLAGS += -fno-builtin -fshort-enums
# C++ flags common to all targets
CXXFLAGS += $(OPT)
# Assembler flags common to all targets
ASMFLAGS += -g3
ASMFLAGS += -mcpu=cortex-m4
ASMFLAGS += -mthumb -mabi=aapcs
ASMFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
ASMFLAGS += -DBLE_STACK_SUPPORT_REQD
ASMFLAGS += -DBOARD_PCA10040
ASMFLAGS += -DCONFIG_GPIO_AS_PINRESET
ASMFLAGS += -DFLOAT_ABI_HARD
ASMFLAGS += -DNRF52
ASMFLAGS += -DNRF52832_XXAA
ASMFLAGS += -DNRF52_PAN_74
ASMFLAGS += -DNRF_SD_BLE_API_VERSION=6
ASMFLAGS += -DS132
ASMFLAGS += -DSOFTDEVICE_PRESENT
ASMFLAGS += -DSWI_DISABLE0
# Linker flags
LDFLAGS += $(OPT)
LDFLAGS += -mthumb -mabi=aapcs -L$(SDK_ROOT)/modules/nrfx/mdk -T$(LINKER_SCRIPT)
LDFLAGS += -mcpu=cortex-m4
LDFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
# let linker dump unused sections
LDFLAGS += -Wl,--gc-sections
# use newlib in nano version
LDFLAGS += --specs=nano.specs
nrf52832_xxaa: CFLAGS += -D__HEAP_SIZE=8192
nrf52832_xxaa: CFLAGS += -D__STACK_SIZE=8192
nrf52832_xxaa: ASMFLAGS += -D__HEAP_SIZE=8192
nrf52832_xxaa: ASMFLAGS += -D__STACK_SIZE=8192
# Add standard libraries at the very end of the linker input, after all objects
# that may need symbols provided by these libraries.
LIB_FILES += -lc -lnosys -lm
.PHONY: default help
# Default target - first one defined
default: nrf52832_xxaa
# Print all targets that can be built
help:
@echo following targets are available:
@echo nrf52832_xxaa
@echo flash_softdevice
@echo sdk_config - starting external tool for editing sdk_config.h
@echo flash - flashing binary
TEMPLATE_PATH := $(SDK_ROOT)/components/toolchain/gcc/Makefile.common
#echo $(TEMPLATE_PATH)
include $(TEMPLATE_PATH) # /Makefile.common
$(foreach target, $(TARGETS), $(call define_target, $(target)))
.PHONY: flash flash_softdevice erase
# Flash the program
flash: $(OUTPUT_DIRECTORY)/nrf52832_xxaa.hex
@echo Flashing: $<
nrfjprog -f nrf52 --program $< --sectorerase
nrfjprog -f nrf52 --reset
# Flash softdevice
flash_softdevice:
@echo Flashing: s132_nrf52_6.0.0_softdevice.hex
nrfjprog -f nrf52 --program $(SDK_ROOT)/components/softdevice/s132/hex/s132_nrf52_6.0.0_softdevice.hex --sectorerase
nrfjprog -f nrf52 --reset
erase:
nrfjprog -f nrf52 --eraseall
SDK_CONFIG_FILE := ../config/sdk_config.h
CMSIS_CONFIG_TOOL := $(SDK_ROOT)/external_tools/cmsisconfig/CMSIS_Configuration_Wizard.jar
sdk_config:
java -jar $(CMSIS_CONFIG_TOOL) $(SDK_CONFIG_FILE)
答案 0 :(得分：0)
我能想象你得到这个错误的唯一方法就是你的makefile中有一个include循环。也就是说，makefile包含自身，或者makefile A包含include B而makefile B包含include A。
您不会显示Makefile.posix的内容，但如果包含Makefile.common，您可能会遇到后一个问题。
另一个替代方案是在您的示例中基于此看起来错误：
TEMPLATE_PATH := $(SDK_ROOT)/components/toolchain/gcc/Makefile.common
include $(TEMPLATE_PATH)
然后你在Makefile.common中说：
include $(TEMPLATE_PATH)Makefile.posix
这是错误的，因为TEMPLATE_PATH不是目录，它是一个文件;这将扩展到：
include /sdk/root/components/toolchain/gcc/Makefile.commonMakefile.posix
这显然是错误的。
但请考虑一下：如果你在TEMPLATE_PATH中有一个尾随空格怎么办，所以它是这样的：
TEMPLATE_PATH := $(SDK_ROOT)/components/toolchain/gcc/Makefile.common #<-space here
请注意，您不需要评论; make总是保留尾随空格，即使在行尾没有别的东西。然后，Makefile.common中的包含将扩展为：
include /sdk/root/components/toolchain/gcc/Makefile.common Makefile.posix
有一个包含自身的makefile，递归。最终，你将耗尽打开的文件。