9c32b9286d
Now that we can get the whole dependency tree from make, use it to
speed up things considerably.
So far, we had three functions to get the dependencies information:
get_depends(), get_rdepends(), and, somehow unrelated, get_version().
Because of the way %-show-{,r}depends works, getting the dependency tree
was expensive, the three functions all took a set of packages for which
to get the dependencies, in an attempt to limit the time it took to get
that tree, but we still had to call these functions iteratively, until
they returned no new dependency. This was pretty costly.
Now, getting the tree is much, much less costly, and we can get the
whole tree as cheaply as we previously got only the first-level
dependencies.
Furthermore, we can now also get the version information at the same
time, and that also brings in whether the package is virtual or not,
target or host.
So, we drop all three helper functions, and replace them with a single
one that returns all that information in one go: full dependency trees
(direct and reverse), per-package type, and per-package version.
Note: since commit
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| boot | ||
| configs | ||
| docs | ||
| fs | ||
| linux | ||
| package | ||
| support | ||
| system | ||
| toolchain | ||
| utils | ||
| .defconfig | ||
| .flake8 | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .gitlab-ci.yml.in | ||
| CHANGES | ||
| Config.in | ||
| Config.in.legacy | ||
| COPYING | ||
| DEVELOPERS | ||
| Makefile | ||
| Makefile.legacy | ||
| README | ||
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 Freenode IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches