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The --testcases option of run-tests says how many test cases to build in
parallel. It automatically derives a jlevel from it by dividing the
number of cores + 1 by the number of parallel testcases. However, this
will typically result in a fractional number. Make doesn't like
fractional numbers as argument to -j.
Convert the number to integer (rounding down).
* br2_jlevel is an int, as multiprocessing.cpu_count() is an int, so it
will be always >=2 (cpu_count() raises an error if it can't determine
the number of CPU, so it will always return at least 1);
* args.testcases is an int, and is checked to be >=1
So br2_jlevel + args.testcases is guaranteed to always be bigger
than or equal to args.testcases, and the division thus bigger than 1.
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[yann.morin.1998@free.fr:
- ensure division provide at least 1
- drop the test below
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit 8dce595a68)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches