[meta-freescale] Porting ltib project to yocto by creating a recipe - link questions

Sun Apr 21 06:44:08 PDT 2013

Take a look in the following link, it can be a good example:

https://github.com/Freescale/meta-fsl-demos/tree/master/recipes-graphics/glcubes-demo

DEPENDS I think may be the GPU package for imx6

Daiane
________________________________
From: meta-freescale-bounces at yoctoproject.org [meta-freescale-bounces at yoctoproject.org] on behalf of Ashwin Kirpalani [akcooper8 at gmail.com]
Sent: Saturday, April 20, 2013 20:41
To: meta-freescale at yoctoproject.org
Subject: [meta-freescale] Porting ltib project to yocto by creating a recipe - link questions

I have spent a few hours on this and thus am asking for help. Any help is appreciated :-)

I am attempting to port an ltib project to yocto from here:
http://www.imxcv.blogspot.com/2012/10/video-to-texture-streaming-part-3-imx6.html

Here is my recipe:
DESCRIPTION = "Video to texture streaming - i.MX6 Processor."
SECTION = "base"
DEPENDS = "libgstreamer libxml2"
#LICENSE = "GPLv2"
#I'll change the License back to GPLv2, using CLOSED below to prevent errors during recipe build
LICENSE = "CLOSED"

SRC_URI = "git:///home/ashwin/fsl/imx6texture/i.MX6-Video-Streaming-Texture;protocol=file"
SRCREV = "${AUTOREV}"

S = "${WORKDIR}/src/"

EXTRA_OEMAKE = "'CC=${CC}' 'CFLAGS=${CFLAGS}'"
do_compile() {
oe_runmake
}

do_install(){
        oe_runmake install DESTDIR=${D} SBINDIR=${sbindir} MANDIR=${mandir} \
                           INCLUDEDIR=${includedir}
install -d ${D}${bindir}
}
FILES_${PN} = " \
   ${bindir}/imx6texture \
   "

Some notes:
I am using a local git repo for now. Here is my makefile for the project:

CFLAGS += -Wall -DLINUX=1 -DEGL_API_FB=1 -I/home/ashwin/fsl-community-bsp/build/tmp/sysroots/imx6qsabrelite/usr/include/gstreamer-0.10 -I/home/ashwin/fsl-community-bsp/build/tmp/sysroots/imx6qsabrelite/usr/include/glib-2.0/
CXXFLAGS += -Wall -DLINUX=1 -DEGL_API_FB=1 -I/home/ashwin/fsl-community-bsp/build/tmp/sysroots/imx6qsabrelite/usr/include/gstreamer-0.10 -I/home/ashwin/fsl-community-bsp/build/tmp/sysroots/imx6qsabrelite/usr/include/glib-2.0/ -I/home/ashwin/fsl-community-bsp/build/tmp/sysroots/imx6qsabrelite/usr/lib/glib-2.0/include -I/home/ashwin/fsl-community-bsp/build/tmp/sysroots/imx6qsabrelite/usr/include/libxml2

OBJS = wrapper.o \
gstcontrol.o \
glutils.o \
glplane.o \
main.o

all: $(OBJS)

#This is my attempt to create an executable called main.out from main.o
install:
$(CC) -o main.out main.o

clean:
rm -rf *o

I am able to compile the 5 source files listed above. During the link and install phase, I get the following errors:
ERROR: Function failed: do_install (see /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/temp/log.do_install.32310 for further information)
ERROR: Logfile of failure stored in: /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/temp/log.do_install.32310
Log data follows:
| DEBUG: Executing shell function do_install
| NOTE: make -j 4 CC=arm-poky-linux-gnueabi-gcc  -march=armv7-a     -mthumb-interwork -mfloat-abi=softfp -mfpu=neon -mtune=cortex-a9 --sysroot=/home/ashwin/fsl-community-bsp/build/tmp/sysroots/imx6qsabrelite CFLAGS= -O2 -pipe -g -feliminate-unused-debug-types install DESTDIR=/home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/image SBINDIR=/usr/sbin MANDIR=/usr/share/man INCLUDEDIR=/usr/include
| arm-poky-linux-gnueabi-gcc  -march=armv7-a     -mthumb-interwork -mfloat-abi=softfp -mfpu=neon -mtune=cortex-a9 --sysroot=/home/ashwin/fsl-community-bsp/build/tmp/sysroots/imx6qsabrelite -o main.out main.o
| main.o: In function `on_handoff1(_GstElement*, _GstBuffer*, _GstPad*)':
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:216: undefined reference to `GSTVideoControl::GSTGetPadWidth(_GstPad*)'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:217: undefined reference to `GSTVideoControl::GSTGetPadHeight(_GstPad*)'
| main.o: In function `gst_buffer_ref':
| /home/ashwin/fsl-community-bsp/build/tmp/sysroots/imx6qsabrelite/usr/include/gstreamer-0.10/gst/gstbuffer.h:349: undefined reference to `gst_mini_object_ref'
| main.o: In function `gst_buffer_unref':
| /home/ashwin/fsl-community-bsp/build/tmp/sysroots/imx6qsabrelite/usr/include/gstreamer-0.10/gst/gstbuffer.h:367: undefined reference to `gst_mini_object_unref'
| main.o: In function `WrapFunction1(void*)':
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:204: undefined reference to `GSTVideoControl::GSTLoopFunction()'
| main.o: In function `BusCall1':
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:185: undefined reference to `gst_message_parse_error'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:186: undefined reference to `g_free'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:188: undefined reference to `g_printerr'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:189: undefined reference to `g_error_free'
| main.o: In function `BusCall1(_GstBus*, _GstMessage*, void*)':
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:178: undefined reference to `g_print'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:179: undefined reference to `GSTVideoControl::GSTSeekAbsolute(unsigned long long)'
| main.o: In function `Render()':
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:235: undefined reference to `glClearColor'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:236: undefined reference to `glClear'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:248: undefined reference to `GLPlane::PlaneMove(int, float)'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:249: undefined reference to `GLPlane::PlaneRotate(int, float)'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:250: undefined reference to `GLPlane::PlaneRotate(int, float)'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:251: undefined reference to `GLPlane::PlaneRotate(int, float)'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:252: undefined reference to `GLPlane::PlaneSetTexBuf(char*, int, int)'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:253: undefined reference to `GLPlane::PlaneDraw()'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:257: undefined reference to `eglSwapBuffers'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:258: undefined reference to `eglGetError'
| main.o: In function `main':
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:118: undefined reference to `GLUtils::GLInit()'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:119: undefined reference to `GLUtils::GenPerspectiveMatrix(float, float, float, float, float*)'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:121: undefined reference to `gst_init'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:123: undefined reference to `GSTVideoControl::GSTInit()'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:125: undefined reference to `GLPlane::PlaneCreateTex(int, int)'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:126: undefined reference to `GLPlane::PlaneCreate(float, float)'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:127: undefined reference to `GLPlane::PlaneSetProjMatrix(float*)'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:130: undefined reference to `GSTVideoControl::GSTSetURI(char*)'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:133: undefined reference to `GSTVideoControl::GSTBuildPipeline(char*, void (*)(), int (*)(_GstBus*, _GstMessage*, void*))'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:135: undefined reference to `GSTVideoControl::GSTThreadCreate(void* (*)(void*))'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:139: undefined reference to `GSTVideoControl::GSTPlay()'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:143: undefined reference to `GLUtils::Kbhit()'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:157: undefined reference to `GSTVideoControl::GSTStop()'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:161: undefined reference to `GLUtils::GLEnd()'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:163: undefined reference to `GLPlane::PlaneDestroy()'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:165: undefined reference to `GSTVideoControl::GSTDeInit()'
| main.o: In function `__static_initialization_and_destruction_0':
| /home/ashwin/fsl-community-bsp/build/tmp/sysroots/imx6qsabrelite/usr/include/c++/iostream:75: undefined reference to `std::ios_base::Init::Init()'
| /home/ashwin/fsl-community-bsp/build/tmp/sysroots/imx6qsabrelite/usr/include/c++/iostream:75: undefined reference to `std::ios_base::Init::~Init()'
| /home/ashwin/fsl-community-bsp/build/tmp/sysroots/imx6qsabrelite/usr/include/c++/iostream:75: undefined reference to `std::ios_base::Init::~Init()'
| main.o: In function `__static_initialization_and_destruction_0':
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:44: undefined reference to `operator new(unsigned int)'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:46: undefined reference to `operator new(unsigned int)'
| /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/src/main.cpp:48: undefined reference to `operator new(unsigned int)'
| collect2: error: ld returned 1 exit status
| make: *** [install] Error 1
| ERROR: oe_runmake failed
| ERROR: Function failed: do_install (see /home/ashwin/fsl-community-bsp/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/imx6texture-0.1-r0/temp/log.do_install.32310 for further information)
ERROR: Task 2 (/home/ashwin/fsl-community-bsp/sources/meta-openembedded/meta-oe/recipes-support/imx6texture/imx6texture_0.1.bb<http://imx6texture_0.1.bb>, do_install) failed with exit code '1'
NOTE: Tasks Summary: Attempted 953 tasks of which 952 didn't need to be rerun and 1 failed.
No currently running tasks (679 of 958)

Questions:
1. So it seems that some basic linking is not being done (like glibc (operator new) as well as linking the GL symbols). Where do I specify these libraries in the recipe?

2.Also, if you note above, I had to manually include the -I include paths in the CXXFLAGS flags inside the makefile. Can this be done automatically in the recipe? Isn't that what the DEPENDS variable is for?

3. The above took a long time for me to figure out. I am still learning the ins and outs of writing recipes. If I want to compile a quick program natively on the imx6q running yocto, what recipes should I build to give me the native gcc toolchain on the imx6Q

Thanks!

~A

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