Re: [Paparazzi-devel] Problem locating gcc-arm-none-eabi

[Chris]

Thank you Felix for your help!
I will do it tommorow at work as i have left the board there.
For now i am trying to solve the path mystery :-)

Here is what i get :
address@hidden:~$ sudo su -
[sudo] password for hendrix:
address@hidden:~# echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/opt/gcc-arm-none-eabi-4_7-2013q2/bin
address@hidden:~#

The path is there but still the file is not visible when run as root.
I even tried to run the "gcc-arm-none-eabi-4.7.4" file from inside the "/opt/gcc-arm-none-eabi-4_7-2013q2/bin" directory and still the system can't find it.

When i installed the arm gcc toolchain i used those commands:

cd ~ wget https://launchpad.net/gcc-arm-embedded/4.7/4.7-2013-q2-update/+download/gcc-arm-none-eabi-4_7-2013q2-20130614-linux.tar.bz2 tar -vjxf gcc-arm-none-eabi-4_7-2013q2-20130614-linux.tar.bz2 -C /opt rm -r gcc-arm-none-eabi-4_7-2013q2-20130614-linux.tar.bz2 exportline="PATH=$PATH:/opt/gcc-arm-none-eabi-4_7-2013q2/bin" if grep -Fxq "$exportline" ~/.profile; then echo nothing to do ; else echo $exportline >> ~/.profile; fi source ~/.profile

Anyway Tommorow i will try to solve at least the usb problem
Chris



On 10/29/2014 06:15 PM, Felix Ruess wrote:

Hi Chris,

sudo echo $PATH is not the same as the PATH of root...

You could do something like

sudo su -

if arm gccnot in path:

export PATH=/opt/gcc-arm-none-eabi-4_7-2013q2/bin:$PATH

run the upload...

Better fix your udev permissions, check with which vendor and product id your board registers itself and then add an appropriate udev rule.

First check which device you get when connecting the board, then run:

udevadm info --query=all --attribute-walk --name=/dev/your_board

What you need to add at the end is probably something:
SUBSYSTEMS=="usb", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="3748", MODE:="0666"

See also https://wiki.paparazziuav.org/wiki/Udev

Cheers, Felix

On Wed, Oct 29, 2014 at 4:50 PM, Chris <address@hidden> wrote:

Hi Felix.
No matter what i do it just wont find the file "arm-none-eabi-gcc-4.7.4" as root but it can find it alright as a normal user in ubuntu 12.04
I am using dfu-util 0.8 in order to program the olimex stm32f405 board using the stm32's built in bootloader.
I can program it fine as root but not as a user, in fact i never found a solution in this problem.
Below are the various iterations i tried:

with sudo
address@hidden:~$ sudo arm-none-eabi-gcc-4.7.4
[sudo] password for hendrix:
sudo: arm-none-eabi-gcc-4.7.4: command not found

as root but specifying the whole path (ok)
address@hidden:~$ sudo /opt/gcc-arm-none-eabi-4_7-2013q2/bin/arm-none-eabi-gcc-4.7.4
arm-none-eabi-gcc-4.7.4: fatal error: no input files
compilation terminated.

as a normal user (ok)
address@hidden:~$ arm-none-eabi-gcc-4.7.4
arm-none-eabi-gcc-4.7.4: fatal error: no input files
compilation terminated.

address@hidden:~$ echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/opt/gcc-arm-none-eabi-4_7-2013q2/bin
address@hidden:~$ sudo echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/opt/gcc-arm-none-eabi-4_7-2013q2/bin
address@hidden:~$ sudo /opt/gcc-arm-none-eabi-4_7-2013q2/bin/arm-none-eabi-gcc-4.7.4
arm-none-eabi-gcc-4.7.4: fatal error: no input files
compilation terminated.
address@hidden:~$

On 10/29/2014 05:26 PM, Felix Ruess wrote:

Hi Chris,

you need to add the cross compiler to your PATH.
export PATH=/opt/gcc-arm-none-eabi-4_7-2013q2/bin:$PATH
You probably did that by adding it to your PATH in ~/.profile so it is always added as normal user (you could add the same file in /root).

Or better fix your permissions/udev rules to allow flashing as normal user.

What device/programmer are you using?

Cheers, Felix

On Wed, Oct 29, 2014 at 3:25 PM, Chris <address@hidden> wrote:

Hi.
I am trying to update everything in my computer and transfer my code to the newest master (just cloned it) and so far i got everything working with one exception.
If i use pararazzi as a normal user paparazzi center can find gcc-arm-none-eabi located in /opt/gcc-arm-none-eabi-4_7-2013q2/bin but if i launch paparazzi center as root it gives me this error.

/home/hendrix/paparazzi/conf/Makefile.arm-embedded-toolchain:29: *** Error: arm-none-eabi-gcc cross-compiler not found! Recommended toolchain is https://launchpad.net/gcc-arm-embedded.  Stop.
make[1]: Leaving directory `/home/hendrix/paparazzi/sw/airborne'
make: *** [ap.compile] Error 2

The problem affects me because whatever i do i just can't flash stm32f4 boards using dfu-util as a user, only as root.
Chris


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