linux-kernel - kbuild: Unnecessary recompiles on path change

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Wed, 10 Sep 2008 16:15:17 -0400 (EDT)
From:	Jan Engelhardt <jengelh@...ozas.de>
To:	sam@...nborg.org
cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: kbuild: Unnecessary recompiles on path change

Hi,

I notice that my kernels get needlessy recompiled if I access the source 
tree through a different directory. In other words, /lo/linux is the 
kernel tree, and `mount --bind /lo /home/jengelh/lo` is in effect.

I see the absolute path being stored in .*.o.cmd files, which seems like 
all the explanation I need. I do remember that I left a comment 
when something like that was afloating:
http://www.nabble.com/-RFC-PATCH-3-6--kbuild:-convert-include-and-source-paths-td17064364.html

As of v2.6.27-rc4-263-g5697a99, there's no gcov in (at least there is no 
such thing in my .config when bulit with ARCH=um), but the issue with 
absolute paths exists.

Jan
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/