Yocto image fails do_rootfs step when adding custom recipe

Technical Support
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1

A customer is building an image using OpenEmbedded. His distro is based on poky and he’s building core-image-minimal. All the recipes he’ll use are added to local.conf using IMAGE_INSTALL_append.
His build works accept when he adds a custom recipe of his which builds a C application. This is his recipe:

[upload|t4iRgGbpBkxtWEtaDVncO+Ww/jY=]

And his makefile:

TARGET    =   satpe
OBJDIR    =   output

SRC_DIR   =   common \
              driver \
              charger/src \
              metrology/src \
              src \
                 	  
INCLUDE_DIR = common \
			  driver \
			  charger/inc \
			  metrology/inc \
			  inc \

PROJECT_INC_LIB = $(addprefix -I, $(INCLUDE_DIR))

FILES     =   $(shell find $(SRC_DIR) \( -name \*.c \) -printf '%T@\t%p\n' | sort -k 1nr | cut -f2-)
SRC_FILES =   $(FILES:./%=%)
OB_FILES  = $(SRC_FILES:.c=.o)

OBJS_FILES =  $(addprefix $(OBJDIR)/, $(OB_FILES:./%=%))
OBJ			= $(OBJS_FILES) 

OBJDIRCOM =   $(addprefix $(OBJDIR)/, $(SRC_DIR))
SRCDIRCOM =   $(SRC_DIR)


LIBS      =   libconfig libmodbus
GIT_VERSION := $(shell git describe --abbrev=4 --dirty --always --tags)
CFLAGS    =   $(shell pkg-config --cflags $(LIBS)) -DAPP_VERSION=\"$(GIT_VERSION)\" -DDEBUG_PRINT #-DDEBUG_GDB	
LDFLAGS   =   $(shell pkg-config --libs $(LIBS)) -lpthread -lgsoap -lnetsnmpmibs -ldl -lnetsnmpagent -Wl,-E -lnetsnmp -lcrypto -lm -lwebsockets

###############################################################################
# Makefile execution
###############################################################################
.PHONY: all clean

all: $(OBJDIRCOM) $(TARGET)

$(OBJDIRCOM):
	mkdir -p $(OBJDIRCOM)
	cd $(OBJDIR)
	@echo $(OBJS_FILES)

$(OBJDIR)/%.o: %.c
#$(CC) $(CFLAGS) $(LDFLAGS) -I$(INCLUDE_DIR) -O0 -g -Wall -c -pedantic -ansi $< -o $@ # Insane checking 
	$(CC) $(CFLAGS) $(LDFLAGS) $(PROJECT_INC_LIB) -O0 -g -Wall -std=gnu99 -c $< -o $@

$(TARGET): $(OBJ)
	$(CC) $(LDFLAGS) -o $(OBJDIR)/$@ $^ 

clean:
	@rm -f $(TARGET) $(wildcard *.o)
	@rm -rf $(OBJDIR)

This application build if bitbake is invoked. However, when adding the recipe to IMAGE_INSTALL_append on local.conf, an error arises while running do_rootfs. The following screenshot shows the error on the left and the local.conf file on the right hand side:

[upload|3g66tj3ZSswldbakGPsH1iGv4YU=]

The task fails with

No match for argument: satpe
Error: unable to find a match

Where satpe is his the name of his recipe.

I can figure his local.conf is set to use RPM, not OPKG, because do_rootfs is invoking dnf. What I’m trying to figure out is why is do_rootfs failing to find his recipe.

I guess it has something to do with his recipe, since his application builds fine without the image and the image builds fine without his application added to IMAGE_INSTALL_append.

Thanks,

Gustavo

2

Hi

The recipe doesn’t install anything. Thus the resulting package is empty, which by default results in not making any package at all.

So I would:

a) add a compile task in which the compiling happens, using the install task for this is highly unusual.

do_compile () {
    oe_runmake
}

b) do actually install the resulting binary by replacing the current install task with the following:

do_install () {
    install -m 0755 -d ${D}${bindir}
    install -m 0644 ${S}/satpe ${D}${bindir}
}

Max

3

Hi, Max!

Nice catch. I’ll guide the customer through this and check if it works.

Edit: it works!

Thanks a lot,

Gustavo.