I would like to use gcc to build a jni library, can I install gcc?
How?
Thank you,
You can cross compile a program on a linux host system, transfer it to your Yun and run it on Linino. Since the newest Yun image is based on Attitude Adjustment this SDK should work with no problems now. It worked for most things on the old image as well.
http://downloads.openwrt.org/attitude_adjustment/12.09/ar71xx/generic/OpenWrt-SDK-ar71xx-for-linux-i486-gcc-4.6-linaro_uClibc-0.9.33.2.tar.bz2 (http://downloads.openwrt.org/attitude_adjustment/12.09/ar71xx/generic/OpenWrt-SDK-ar71xx-for-linux-i486-gcc-4.6-linaro_uClibc-0.9.33.2.tar.bz2)
Thank you, will investigate.
I've been trying to build the toolchain in:
Linux ubuntu 3.13.0-24-generic #46-Ubuntu SMP
I've been following the instructions at:
https://github.com/todbot/blink1/tree/master/openwrt
But I'm getting and error when I try to execute:
sudo make tools/install
The error is:
Checking 'working-make'... ok.
Checking 'case-sensitive-fs'... ok.
Checking 'getopt'... ok.
Checking 'fileutils'... ok.
Checking 'working-gcc'... ok.
Checking 'working-g++'... ok.
Checking 'ncurses'... ok.
Checking 'zlib'... ok.
Checking 'gawk'... ok.
Checking 'unzip'... ok.
Checking 'bzip2'... ok.
Checking 'perl'... ok.
Checking '/usr/bin/python2.7'... ok.
Checking 'wget'... ok.
Checking 'git'... ok.
Checking 'gnutar'... ok.
Checking 'svn'... ok.
Checking 'gnu-find'... ok.
Checking 'getopt-extended'... ok.
Checking 'non-root'... failed.
Build dependency: Please do not compile as root.
Prerequisite check failed. Use FORCE=1 to override.
make[2]: *** [tmp/.prereq-build] Error 1
make[1]: *** [prereq] Error 2
make: *** [tools/install] Error 2
Maybe because I'm prefixing the make with sudo, but if I don't then it won't build at all and the error displayed is:
make[2]: *** [tmp/.prereq-build] Error 1
make[1]: *** [prereq] Error 2
make: *** [tools/install] Error 2
simon@ubuntu:~/linino/trunk$ uname -a
Linux ubuntu 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
simon@ubuntu:~/linino/trunk$ make FORCE=1 tools/install
rm: cannot remove '/home/simon/linino/trunk/tmp/info/.files-packageinfo-3546': Permission denied
make[3]: *** No rule to make target `/home/simon/linino/trunk/tmp/info/.files-packageinfo-3910'. Stop.
cat: /home/simon/linino/trunk/tmp/info/.files-packageinfo-3910: No such file or directory
rm: cannot remove '/home/simon/linino/trunk/tmp/info/.files-packageinfo.stamp.e2acf987b494d5dae9ced9f8732e751f': Permission denied
touch: cannot touch '/home/simon/linino/trunk/tmp/info/.files-packageinfo.stamp.d41d8cd98f00b204e9800998ecf8427e': Permission denied
touch: cannot touch '/home/simon/linino/trunk/tmp/info/.files-packageinfo.stamp': Permission denied
make[2]: *** [/home/simon/linino/trunk/tmp/info/.files-packageinfo.stamp] Error 1
make[1]: *** [prepare-tmpinfo] Error 2
make: *** [tools/install] Error 2
Any ideas?
Checking 'non-root'... failed.
remove sudo and try it again.
Permission denied
sudo chown username:username -R /home/username
That did the trick...thank you.
Next problem whilst working through:
https://github.com/todbot/blink1/tree/master/openwrt
% cd ~/projects/linino/trunk
% cd package
% ln ~/projects/blink1/openwrt blink1
I don't see a blink1 file or folder anywhere.
Why not use official openwrt-yun source:
https://github.com/arduino/openwrt-yun (https://github.com/arduino/openwrt-yun)
http://forum.arduino.cc/index.php?topic=235489.msg1699935#msg1699935 (http://forum.arduino.cc/index.php?topic=235489.msg1699935#msg1699935)
after build complete.
make menuconfig
compile toolchain and SDK:
(http://i59.tinypic.com/307npfo.jpg)
Thank you, I'll give it a go.
Are they're any guides or tutorials on how to use the toolchain to build and target applications for the Yun?
There is little about the Yun that is not normal OpenWrt stuff. Most of the unique things are in Python.
Here are the OpenWrt guides:
http://wiki.openwrt.org/doc/start#developing (http://wiki.openwrt.org/doc/start#developing)
http://wiki.openwrt.org/doc/devel/crosscompile (http://wiki.openwrt.org/doc/devel/crosscompile)
http://wiki.openwrt.org/doc/devel/packages (http://wiki.openwrt.org/doc/devel/packages)
This tutorial is my favorite setup:
http://downloads.openwrt.org/docs/eclipse.pdf (http://downloads.openwrt.org/docs/eclipse.pdf)
You get full source level debugging!
For linux programs that use configure and make this post has an example:
http://forum.arduino.cc/index.php?topic=237050.msg1704929#msg1704929 (http://forum.arduino.cc/index.php?topic=237050.msg1704929#msg1704929)
Thank you very much, will go through those.
I left the system building overnight, this morning I found it had stopped with an error:
checking for gpgme-config... failed
configure: error: GPGME 1.0.0 or later needed
make[3]: *** [/home/simon/OpenWrt-yun/build_dir/linux-ar71xx_generic/opkg-618/.configured_yyyy] Error 1
make[3]: Leaving directory `/home/simon/OpenWrt-yun/package/opkg'
make[2]: *** [package/opkg/compile] Error 2
make[2]: Leaving directory `/home/simon/OpenWrt-yun'
make[1]: *** [/home/simon/OpenWrt-yun/staging_dir/target-mips_r2_uClibc-0.9.33.2/stamp/.package_compile] Error 2
make[1]: Leaving directory `/home/simon/OpenWrt-yun'
make: *** [world] Error 2
I followed the instructions at:
https://github.com/arduino/openwrt-yun
Any clues?
The instructions has two ways ssh/git or ssl/https. Which way you are following?
The output of
cat /proc/cpuinfo |grep processor
From this link:
https://github.com/arduino/openwrt-yun
Followed instructions from 'How to build' down.
simon@ubuntu:~/OpenWrt-yun$ cat /proc/cpuinfo |grep processor
processor : 0
processor : 1
processor : 2
processor : 3
output of:
nano feeds.conf.defaultyou have 4 CPU cores, use this command will speed up:
DL_FOLDER=~/DOWNLOAD MAKE_JOBS=5 ./build.sh output of :
free
http://forum.arduino.cc/index.php?topic=235489.msg1699935#msg1699935 (http://forum.arduino.cc/index.php?topic=235489.msg1699935#msg1699935)
if you use ssl to get source like me then:
"feeds.conf.default" need update, you might need start over again. But this time with MAKE_JOBS=5.
free:
simon@ubuntu:~/OpenWrt-yun$ free
total used free shared buffers cached
Mem: 4041044 1894244 2146800 10680 286452 791220
-/+ buffers/cache: 816572 3224472
Swap: 4192252 0 4192252
Contents of feeds.conf.default:
DL_FOLDER=/DOWNLOAD MAKE_JOBS=5 ./build.sh
#src-git packages git@github.com:arduino/openwrt-packages-yun.git
src-git packages https://github.com/arduino/openwrt-packages-yun.git
src-svn xwrt http://x-wrt.googlecode.com/svn/trunk/package
src-svn luci http://svn.luci.subsignal.org/luci/branches/luci-0.11/contrib/package
src-git routing git://github.com/openwrt-routing/packages.git;for-12.09.x
#src-svn phone svn://svn.openwrt.org/openwrt/feeds/phone
#src-svn efl svn://svn.openwrt.org/openwrt/feeds/efl
#src-svn xorg svn://svn.openwrt.org/openwrt/feeds/xorg
#src-svn desktop svn://svn.openwrt.org/openwrt/feeds/desktop
#src-svn xfce svn://svn.openwrt.org/openwrt/feeds/xfce
#src-svn lxde svn://svn.openwrt.org/openwrt/feeds/lxde
#src-link custom /usr/src/openwrt/custom-feed
DL_FOLDER=/DOWNLOAD MAKE_JOBS=5 ./build.sh
in "feeds.conf.default" ?
It is now, I added it before the last post.
checking for gpgme-config... failed
configure: error: GPGME 1.0.0 or later needed
It means package of GPGME is not fed. You might need start over.
total used free shared buffers cached
Mem: 4041044 1894244 2146800 10680 286452 791220
47% memory has been used.
reboot before start over or:
free && sync && echo 3 > /proc/sys/vm/drop_caches && free
DL_FOLDER=/DOWNLOAD MAKE_JOBS=5 ./build.sh
in "feeds.conf.default" ?
remove it please.
I've removed the entry from "feeds.conf.default"
When I try to execute:
free && sync && echo 3 > /proc/sys/vm/drop_caches && free
I get permission denied on drop_caches.
I mean "start over":
rm -rf /home/simon/OpenWrt-yun
but this time use:
DL_FOLDER=/DOWNLOAD MAKE_JOBS=5 ./build.sh
It will take 1/4 of time.
"feeds.conf.default" must updated before run above command.
I've removed the entry from "feeds.conf.default"
When I try to execute:
free && sync && echo 3 > /proc/sys/vm/drop_caches && free
I get permission denied on drop_caches.
sudo free && sync && echo 3 > /proc/sys/vm/drop_caches && free
Tried that too:
simon@ubuntu:~$ sudo free && sync && echo 3 > /proc/sys/vm/drop_caches && free
[sudo] password for simon:
total used free shared buffers cached
Mem: 4041044 2021568 2019476 10632 322784 835392
-/+ buffers/cache: 863392 3177652
Swap: 4192252 0 4192252
bash: /proc/sys/vm/drop_caches: Permission denied
su
free && sync && echo 3 > /proc/sys/vm/drop_caches && free
su simon
I normally open two sessions one logon as root and one is sonnyyu.
Started over, rebuilding all now.
Different error this time:
--> Package/libfuse/install enter
install -d -m0755 /home/simon/OpenWrt-yun/staging_dir/target-mips_r2_uClibc-0.9.33.2/root-ar71xx/tmp-libfuse/usr/lib
cp -fpR /home/simon/OpenWrt-yun/build_dir/linux-ar71xx_generic/fuse-2.9.0/ipkg-install/usr/lib/*.so.* /home/simon/OpenWrt-yun/staging_dir/target-mips_r2_uClibc-0.9.33.2/root-ar71xx/tmp-libfuse/usr/lib/
--> Package/libfuse/install leave
SHELL= /home/simon/OpenWrt-yun/staging_dir/host/bin/flock /home/simon/OpenWrt-yun/tmp/.root-copy.flock -c 'cp -fpR /home/simon/OpenWrt-yun/staging_dir/target-mips_r2_uClibc-0.9.33.2/root-ar71xx/tmp-libfuse/. /home/simon/OpenWrt-yun/staging_dir/target-mips_r2_uClibc-0.9.33.2/root-ar71xx/'
rm -rf /home/simon/OpenWrt-yun/staging_dir/target-mips_r2_uClibc-0.9.33.2/root-ar71xx/tmp-libfuse
touch /home/simon/OpenWrt-yun/staging_dir/target-mips_r2_uClibc-0.9.33.2/root-ar71xx/stamp/.libfuse_installed
make[3]: Leaving directory `/home/simon/OpenWrt-yun/package/fuse'
make[2]: Leaving directory `/home/simon/OpenWrt-yun'
make[1]: *** [/home/simon/OpenWrt-yun/staging_dir/target-mips_r2_uClibc-0.9.33.2/stamp/.package_compile] Error 2
make[1]: Leaving directory `/home/simon/OpenWrt-yun'
make: *** [world] Error 2
Re-started it with:
MAKE_JOBS=5 nice -n 10 make -j $MAKE_JOBS V=s
Seems to be progressing ok.
Stopped again, now trying:
nice -n 10 nohup make -j 1 V=s &
Trying this:
http://wiki.openwrt.org/doc/howto/build
Trying this:
http://wiki.openwrt.org/doc/howto/build
That will work, make sure build 12.09 branch (Attitude Adjustment). and you could get official support at
https://forum.openwrt.org/ (https://forum.openwrt.org/).
I've been following the guide on:
http://wiki.openwrt.org/doc/devel/crosscompile
I've now been through it several times, not sure what I've missed out, but I keep getting to the same stage. When I try to create a new project in eclipse, I choose the project type, but then I just get a blank wizard page with no further options.
I've seen another reference showing entry for the target toolchain, but I'm not sure how to get there from the original guide. Also in the guide build it shows a trunk folder, I don't have that.
My tree looks as follows:
simon@ubuntu:~/openwrt$ ls -l
total 108
drwxr-xr-x 3 simon simon 4096 May 3 20:51 bin
-rw-rw-r-- 1 simon simon 179 May 3 19:11 BSDmakefile
drwxr-xr-x 5 simon simon 4096 May 3 20:00 build_dir
drwxrwxr-x 2 simon simon 4096 May 3 19:11 config
-rw-rw-r-- 1 simon simon 560 May 3 19:11 Config.in
drwxr-xr-x 2 simon simon 4096 May 3 21:15 dl
drwxrwxr-x 2 simon simon 4096 May 3 19:11 docs
drwxrwxr-x 10 simon simon 4096 May 3 19:37 feeds
-rw-rw-r-- 1 simon simon 714 May 3 19:17 feeds.conf.default
drwxrwxr-x 3 simon simon 4096 May 3 19:11 include
-rw-rw-r-- 1 simon simon 17992 May 3 19:11 LICENSE
-rw-rw-r-- 1 simon simon 3102 May 3 19:11 Makefile
drwxrwxr-x 12 simon simon 4096 May 3 19:12 package
-rw-rw-r-- 1 simon simon 1259 May 3 19:11 README
-rw-rw-r-- 1 simon simon 10151 May 3 19:11 rules.mk
drwxrwxr-x 4 simon simon 4096 May 3 19:11 scripts
drwxrwxr-x 5 simon simon 4096 May 3 19:41 staging_dir
drwxrwxr-x 6 simon simon 4096 May 3 19:11 target
drwxrwxr-x 4 simon simon 4096 May 3 21:30 tmp
drwxrwxr-x 12 simon simon 4096 May 3 19:11 toolchain
drwxrwxr-x 54 simon simon 4096 May 3 19:11 tools
Contents of staging_dir:
simon@ubuntu:~/openwrt/staging_dir$ ls -l
total 12
drwxr-xr-x 13 simon simon 4096 May 3 20:51 host
drwxrwxr-x 11 simon simon 4096 May 3 21:30 target-mips_34kc_uClibc-0.9.33.2
drwxr-xr-x 12 simon simon 4096 May 3 21:29 toolchain-mips_34kc_gcc-4.8-linaro_uClibc-0.9.33.2
I feel I'm close its so frustrating, the guide isn't the easiest thing to follow as it jumps around, rather than step by step instructions.
Thank you,
Give a look at @fibasile guide for cross compiling a single package http://fibasile.github.io/compiling-nodejs-for-arduino-yun.html
In order to use that guide, you need either the SDK for your OS or a compiled yun image: for the latter, see the guide at https://github.com/arduino/openwrt-yun
You are very close, it looks like you have your build root complete. Check the bin/ar71xx directory, there should be a md5sums file, a package directory and several files that start with openwrt-ar71xx. Even if this isn't there you most likey have the toolchain at this point.
Here is a way to see if you can compile assuming your OpenWrt-yun directory is in your home directory:
cd ~/OpenWrt-yun/
mkdir test
cd test
Create a file "src/HelloOpenWrt.c" with these contents using whatever editor you like:
#include <stdio.h>
void main(void)
{
printf("%s","hello world\n");
}
Add the tools location to your path:
PATH=$PATH:~/OpenWrt-yun/staging_dir/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin
Now you can compile and link:
mips-openwrt-linux-gcc -O3 -Wall -c -fmessage-length=0 -MMD -MP -MF"src/HelloOpenWrt.d" -MT"src/HelloOpenWrt.d" -o "src/HelloOpenWrt.o" "src/HelloOpenWrt.c"
mips-openwrt-linux-gcc -o "HelloOpenWrt" ./src/HelloOpenWrt.o
Copy the program to the Yun:
scp HelloOpenWrt root@arduino.local:/tmp
ssh into the Yun and run the program:
ssh root@arduino.local
/tmp/HelloOpenWrt
Don't worry about the missing trunk directory. I don't understand what it is but in some build roots you have it, in others the contents are just in the base directory. If you are working in the current OpenWrt-yun build root just leave the /trunk/ out of the paths when you see it.
If you can compile like I showed in the last post here is how I got Eclipse working, I really think it is worth the trouble if you write programs, if you just want to compile already working programs it may not be worth the trouble.
Start at step 4 in http://downloads.openwrt.org/docs/eclipse.pdf (http://downloads.openwrt.org/docs/eclipse.pdf), you have already completed the steps before this point.
Install openssh-sftp-server and gdbserver on the Yun
root@Arduino:~# opkg install openssh-sftp-server
Installing openssh-sftp-server (6.1p1-1) to root...
Downloading http://downloads.arduino.cc/openwrtyun/1/packages/openssh-sftp-server_6.1p1-1_ar71xx.ipk.
Configuring openssh-sftp-server.
root@Arduino:~# opkg install gdbserver
Installing gdbserver (6.8a-4) to root...
Downloading http://downloads.arduino.cc/openwrtyun/1/packages/gdbserver_6.8a-4_ar71xx.ipk.
Configuring gdbserver.
In step 5 I used Eclipse IDE for C/C++ Juno from here https://www.eclipse.org/downloads/packages/release/juno/sr2 (https://www.eclipse.org/downloads/packages/release/juno/sr2) and unpacked it in my OpenWrt-yun directory and I put my workspace in OpenWrt-yun/eclipse/workspace.
In step 6 I use this
(http://forum.arduino.cc/index.php?action=dlattach;topic=236215.0;attach=80126;image)
to create a new project and I get this
(http://forum.arduino.cc/index.php?action=dlattach;topic=236215.0;attach=80124;image)
is this where you have a problem?
If so make sure you did this in step 5:
We have to install additional eclipse packages: enter Menu ? Help ? Install new Software ..
and select in section "Mobile and Device Development" packages "C/C++ GCC Cross Compiler
Support" and "Remote System Explorer End-User Runtime".
Thank you so much for the help, I will try to get follow it tonight, just did the following:
simon@ubuntu:~/openwrt$ find . -name mips-openwrt-linux-gcc
./build_dir/target-mips_34kc_uClibc-0.9.33.2/OpenWrt-Toolchain-ar71xx-for-mips_34kc-gcc-4.8-linaro_uClibc-0.9.33.2/toolchain-mips_34kc_gcc-4.8-linaro_uClibc-0.9.33.2/bin/mips-openwrt-linux-gcc
./build_dir/target-mips_34kc_uClibc-0.9.33.2/OpenWrt-SDK-ar71xx-for-linux-x86_64-gcc-4.8-linaro_uClibc-0.9.33.2/staging_dir/toolchain-mips_34kc_gcc-4.8-linaro_uClibc-0.9.33.2/bin/mips-openwrt-linux-gcc
./staging_dir/toolchain-mips_34kc_gcc-4.8-linaro_uClibc-0.9.33.2/bin/mips-openwrt-linux-gcc
I modified the path:
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/home/simon/openwrt/staging_dir/toolchain-mips_34kc_gcc-4.8-linaro_uClibc-0.9.33.2/bin/
When I tried to compile:
mips-openwrt-linux-gcc -O3 -Wall -c -fmessage-length=0 -MMD -MP -MF"src/HelloOpenWrt.d" -MT"src/HelloOpenWrt.d" -o "src/HelloOpenWrt.o" "src/helloworld.c"
mips-openwrt-linux-gcc: warning: environment variable 'STAGING_DIR' not defined
The contents of src after compilation is:
ls -l
total 12
-rw-rw-r-- 1 simon simon 37 May 4 18:18 HelloOpenWrt.d
-rw-rw-r-- 1 simon simon 1316 May 4 18:18 HelloOpenWrt.o
-rw-rw-r-- 1 simon simon 77 May 4 18:01 helloworld.c
The toolchain path is different to yours, not sure why?
Any idea what the password is likely to be when using scp to transfer file to yun?
I've tried the password I set to login using putty, but no joy.
The password should be the same as you use to login with putty, the web interface or anything else.
You can also set up to not need the password by using a ssh key like this: http://forum.arduino.cc/index.php?topic=196604.0 (http://forum.arduino.cc/index.php?topic=196604.0)
Since you are trying to scp something to the yun I assume you know that the STAGING_DIR warning doesn't stop the linking.
It looks like you are building from a build root from openwrt not the Yun specific build root which gives the difference in paths. It should work for most things but you will probably want to do the Yun build eventually https://github.com/arduino/openwrt-yun (https://github.com/arduino/openwrt-yun)
I don't unstand why I can't connect via scp...I've opened an ssh session using putty and logged in as root with my set password, but I can't get in with the same password on scp.
Are you on linux or windows, I didn't know there was a putty for linux.
Its complicated...I'm running Windows 7 x64 with VMplayer hosting Ubuntu, I'm using Ubuntu to compile and use for Cross Platform development.
Output from uname:
Linux ubuntu 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
Putty is on the Windows desktop.
Are you using root@arduino.local not just arduino.local? I make myself say DOH!! with that frequently.
$ ssh arduino.local
pep@arduino.local's password:
Permission denied, please try again.
pep@arduino.local's password:
Permission denied, please try again.
pep@arduino.local's password:
Permission denied (publickey,password).
$ ssh root@arduino.local
BusyBox v1.19.4 (2014-04-10 11:08:41 CEST) built-in shell (ash)
Enter 'help' for a list of built-in commands.
_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
-----------------------------------------------------
root@Arduino:~# I have the public key stuff set up so it doesn't ask for the password when I use the correct user (root)
I am aware of people using your setup but I am not extremely familiar with how to set it up. Try using ssh like above from within your virtual linux. There may be some extra things needed to get network connectivity from there.
If nothing else can you save the executable somewhere that you can reach from with in Windows and then transfer using putty?
Ok, now I get:
scp HelloOpenWrt root@192.168.1.171:/tmp
root@192.168.1.171's password:
HelloOpenWrt: No such file or directory
The files in src are:
-rw-rw-r-- 1 simon simon 37 May 4 18:57 HelloOpenWrt.d
-rw-rw-r-- 1 simon simon 1316 May 4 18:57 HelloOpenWrt.o
-rw-rw-r-- 1 simon simon 77 May 4 18:01 helloworld.c
Is there anything in test?
test$ ls -l
total 12
-rwxr-xr-x 1 pep pep 5014 May 4 05:58 HelloOpenWrt
drwxr-xr-x 2 pep pep 4096 May 4 05:58 src
Did you link after compiling?
mips-openwrt-linux-gcc -o "HelloOpenWrt" ./src/HelloOpenWrt.o
You do need to be in the test dir, if not you need to give the path.
Thank you, I was hadn't performed the link, doh! sorry some of this I'm just copying without thinking about what I'm doing should have realised that I need to link the objects.
Transfer the test app to the Yun, ssh'd into it and it works, now for eclipse...
Thank you so much for your help, very much appreciated, I hope I can return the favour in the future.
No problems, it is beer:30 here, I'm off, I'll check in with the phone but my advice may not be all that coherent in a couple of hours.
For repayment just take a vacation in Nashville, I'll show you the worst best dives in town.
Beer, the cause and solution to all of life's problem - Homer
Thank you, would make a nice change from Norwich, lovely as it is.
In eclipse, have prefix set to:
mips-openwrt-linux-uclibc-
Path set to:
/home/simon/openwrt/staging_dir/toolchain-mips_34kc_gcc-4.8-linaro_uClibc-0.9.33.2/bin
Just trying a very simple example:
#include <stdio.h>
int main(void) {
printf("Hello World\n");
return 0;
}
When I build I get:
Description Resource Path Location Type
undefined reference to `main' HelloWorld line 95, external location: /home/simon/openwrt/staging_dir/toolchain-mips_34kc_gcc-4.8-linaro_uClibc-0.9.33.2/mips-openwrt-linux-uclibc/lib/crt1.o:/home/simon/openwrt/build_dir/toolchain-mips_34kc_gcc-4.8-linaro_uClibc-0.9.33.2/uClibc-0.9.33.2/libc/sysdeps/linux/mips/crt1.S C/C++ Problem
make: *** [HelloWorld] Error 1 HelloWorld C/C++ Problem
Not sure why, nothing looks wrong in the source to me.
Edit: nevermind, just google'd and found someone with the same problem, shut down eclipse and re-opened, cleaned and build all, problem gone and binary built :)
That looks like the "problems" output, if so you can see the actual commands and compiler output in the console tab which may give better clues.
Congrats! Now if you follow the eclipse tutorial you can set up the remote system and debugging. Try a for loop in a simple program and you can step through it and set breakpoints and such...
Just got the remote debugging working, now for some real work :)
Thanks again, I've got a simple project planned for the Yun for the slot car hobbist...Anyone familiar with the DS-300 kit for lap-timing will know that it offers a serial RS232 connection only.
I've written a Java application that forwards the serial packets onto remote clients using socket.io, it also logs the data so that races can be played back at a later date.
The plan now is to use the Yun to host this application and use it as a server to push the records to clients using the WiFi interface, clients can be mobiles or PC's.
Development environment working on Laptop, configured remote debugging and it works well.
On my main development system I have tried today to get this set-up, I've got as far as remote debugging, but for some reason I get:
Can't bind address: Address already in use.
Killing inferior
Nevermind, rebooted Yun and restarted eclipse, problem has gone.