Messages in this thread | | | Subject | Re: [PATCH 1/1 linux-next] kbuild: add make force=1 for testing | From | Michal Marek <> | Date | Tue, 26 Jul 2016 23:47:38 +0200 |
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Dne 26.7.2016 v 02:05 Andrew Morton napsal(a): > On Sun, 24 Jul 2016 15:28:18 +0200 Fabian Frederick <fabf@skynet.be> wrote: >> This patch adds ability to do make force=1 for people >> not interested in modules_install in this case but only testing. >> >> (Note that other options could go under ifndef force) > > That's a bit of a hack on a hack.
Agreed.
> 51193b76bfff said: > > : When the kernel path contains a space or a colon somewhere in the path > : name, the modules_install target doesn't work anymore, as the path names > : are not enclosed in double quotes. It is also supposed that and O= build > : will suffer from the same weakness as modules_install. > : > : Instead of checking and improving kbuild to resist to directories > : including these characters, error out early to prevent any build if the > : kernel's main directory contains a space. > > What's involved in fixing this properly? Make the whole kbuild > system operate correctly when there are spaces/colons in the > pathname?
modules_install probably could be fixed. However, O= builds are definitely unfixable: We use -I$(srctree)/... in various *FLAGS variables, which are space-separated lists. We assign $(srctree) to VPATH, which is a colon-separated list. Also, we pass $(srctree)/... to the wildcard, addprefix or patsubst functions, which take a space-separated list of words. The Makefile language simply does does not give us tools to handle special characters properly.
To work around such paths, I suggest to create a symlink and use that. As far as I can tell, we do not call readlink/realpath in the buildsystem.
Michal
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