Pyra pyra-debian-cross

KidPaddle

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May 14, 2006
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385
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Germany
I try to compile a program with "cmake" build system and SDL2.

SDL2 is installed:
./install.sh pyra.install libsdl2-dev libsdl2-gfx-dev libsdl2-image-dev libsdl2-net-dev libsdl2-mixer-dev libsdl2-ttf-dev
[sudo] Passwort für thomas:
CMD> mount --bind /dev /home/thomas/Projects/pyra/rootfs/dev
CMD> mount --bind /dev/pts /home/thomas/Projects/pyra/rootfs/dev/pts
CMD> mount --bind /proc /home/thomas/Projects/pyra/rootfs/proc
CMD> chroot /home/thomas/Projects/pyra/rootfs apt-get -y install libsdl2-dev libsdl2-gfx-dev libsdl2-image-dev libsdl2-net-dev libsdl2-mixer-dev libsdl2-ttf-dev
Reading package lists...
Building dependency tree...
Reading state information...
libsdl2-dev is already the newest version (2.0.5+dfsg1-2).
libsdl2-gfx-dev is already the newest version (1.0.1+dfsg-4).
libsdl2-image-dev is already the newest version (2.0.1+dfsg-2+b2).
libsdl2-mixer-dev is already the newest version (2.0.1+dfsg1-1).
libsdl2-net-dev is already the newest version (2.0.1+dfsg1-2).
libsdl2-ttf-dev is already the newest version (2.0.14+dfsg1-1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
CMD> umount /home/thomas/Projects/pyra/rootfs/proc
CMD> umount /home/thomas/Projects/pyra/rootfs/dev/pts
CMD> umount /home/thomas/Projects/pyra/rootfs/dev


Steps:
pyra_makeprj uMario
cd uMario
git clone https://github.com/jakowskidev/uMario_Jakowski.git
cd uMario_Jakowski
mkdir build
cd build
pyra_cmake ..


Results in:
-- The C compiler identification is GNU 6.3.0
-- The CXX compiler identification is GNU 6.3.0
-- Check for working C compiler: /usr/bin/arm-linux-gnueabihf-gcc
-- Check for working C compiler: /usr/bin/arm-linux-gnueabihf-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/arm-linux-gnueabihf-g++
-- Check for working CXX compiler: /usr/bin/arm-linux-gnueabihf-g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
<FindSDL2.cmake>
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - not found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE
</FindSDL2.cmake>
CMake Error at /usr/share/cmake-3.7/Modules/FindPackageHandleStandardArgs.cmake:138 (message):
Could NOT find SDL2 (missing: SDL2_LIBRARY)
Call Stack (most recent call first):
/usr/share/cmake-3.7/Modules/FindPackageHandleStandardArgs.cmake:378 (_FPHSA_FAILURE_MESSAGE)
cmake/FindSDL2.cmake:168 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
CMakeLists.txt:21 (find_package)


It is using arm-linux compiler, but didn't find SDL2 (?), compiling for i386 works without problems.

Thomas
 

sebt3

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This project doesnt use the default SDL2.cmake file but instead provide it's own. Luckyly you can set a search path for it :
pyra_cmake -DSDL2_PATH="${PYRA_ROOTFS}/usr" ..​
But then what fail is SDL2_image and SDL2_mixer. Both also based on the project cmake provided file. But these have a different way to find their path :
SDL2DIR="${PYRA_ROOTFS}/usr" pyra_cmake -DSDL2_PATH="${PYRA_ROOTFS}/usr" ..

And the project setup correctly.

But you made me found an other bug, now fixed, thanks ;)
 

KidPaddle

Member
Joined
May 14, 2006
Messages
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Location
Germany
As long as I do not bother you with my questioning, always gladly.

I will test it with a fresh setup.

Thomas
[doublepost=1510488649,1510466523][/doublepost]Yes, now it works. Unlucky, my board OMAP5432-EVM doesn't boot, i have to setup a boot disk.

Thomas
 

sebt3

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Updated the install script to use lastest pyra rootfs image.
This now only works on a Debian Buster install (debian sid have a newer toolchain and fail to link. I could probably fix that, but meh....)
 

ible

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Seattle, WA
i'm a mere plebeian when it comes to cross compilation, so i prefer messing around in the chroot environment directly (rather than issuing one command at a time). i made these changes to the install.sh:
Code:
diff original.install.sh install.sh 
357c357
< chroot.cmd() {
---
> chroot.setup() {
362c362,363
<     out.cmd chroot $DEST/rootfs "$@"
---
> }
> chroot.out() {
366a368,376
> chroot.cmd() {
>     chroot.setup
>     out.cmd chroot $DEST/rootfs "$@"
>     chroot.out
> }
> chroot.in() {
>     chroot.setup
>     out.cmd chroot $DEST/rootfs
> }
497a508,509
> args.option ACTION chroot.in      "Get into a chroot environment"
> args.option ACTION chroot.out      "Get out of a chroot environment"
(of course chroot.out needs to be done after exiting chroot, probably with Ctrl+D.)

unfortunately, doing this buffers the text input oddly -- i don't know if i'm executing the correct command until i press enter :D. i imagine there's something i can do to fix this?
 

sebt3

homebrew player (P. & C.)
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unfortunately, doing this buffers the text input oddly -- i don't know if i'm executing the correct command until i press enter :D. i imagine there's something i can do to fix this?
The script is meant to be used as a script, not as a toolbox. leave it as it is. If you want to mess with the chroot, then just :
Code:
sudo chroot $PYRA_ROOTFS
This way the output analyser wont be in your way at all ;)

Though, if you do so, I would recommand running after messing in the chroot :
Code:
sudo $TOOLCHAIN_ROOT/install.sh rootfs.fix
 
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