Re: [ptxdist] ptxdist commands

[Juergen Borleis <jbe@pengutronix.de>]

Hi Sophie,

On Tuesday 03 June 2014 17:29:03 Sophie CARAYOL wrote:
> I don't find some explanations about ptxdist in the developer's manual.
> - What's the difference between 'ptxdist clean' 'ptxdist drop'

"clean" removes files, while "drop" only remove state information.

> - If I made some modifications on files (for example in u-boot or kernel),
> what is the right command to re-build the project.

PTXdist works with states for every single package. It walks through the main 
states in the following order:

 - get: get package sources
 - extract: extract package (its archive for example)
 - prepare: run configure stages for this package
 - compile: compile the sources of this package
 - install: install the results into the corresponding sysroot/
 - targetinstall: create the content for the ipkg and install files for target
                  into root/

So it depends on what you want PTXdist to do again. If you have modified 
sources in the build directory of a package and you want to force PTXdist to 
re-compile this changes again, just drop the package's "compile" stage. In the 
case of the kernel:

  ptxdist targetinstall kernel
  do {
      <running the kernel, it does not work, change some code in the kernel
       source tree>
      ptxdist drop kernel.compile
      ptxdist targetinstall kernel
  } while (!does_work_now)

Maybe the section "Using an External Kernel Source Tree" in the manual can help 
you.

Regards,
Jürgen

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Pengutronix e.K.                              | Juergen Borleis             |
Linux Solutions for Science and Industry      | http://www.pengutronix.de/  |

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