linux-kernel - Re: [PATCH -mm] replacement for broken kbuild-dont-put-temp-files-in-the-source-tree.patch

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

Message-Id: <4545C2D8.76E4.0078.0@novell.com>
Date:	Mon, 30 Oct 2006 09:16:08 +0100
From:	"Jan Beulich" <jbeulich@...ell.com>
To:	"Sam Ravnborg" <sam@...nborg.org>
Cc:	"Oleg Verych" <olecom@...wer.upol.cz>, <dsd@...too.org>,
	<kernel@...too.org>, <draconx@...il.com>, <jpdenheijer@...il.com>,
	"Andrew Morton" <akpm@...l.org>, "Andi Kleen" <ak@...e.de>,
	"LKML" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -mm] replacement for broken
	kbuild-dont-put-temp-files-in-the-source-tree.patch

>> In `19-rc3/include/Kbuild.include', just below `as-instr' i see:
>> ,--
>> |cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
>> |             > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
>> |
>> |# cc-option-yn
>> |# Usage: flag := $(call cc-option-yn, -march=winchip-c6)
>> |cc-option-yn = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
>> |                 > /dev/null 2>&1; then echo "y"; else echo "n"; fi;)
>> `--
>> so, change to `-o /dev/null' in `as-instr' will just follow this.
>
>gcc does not delete files specified with -o - but binutils does.
>So using /dev/null in this case is not an option.

While I fixed this quite some time ago (after running into it myself), it
obviously still is a problem with older versions. However, using as' -Z
option seems to help here.
On the other hand, I long wanted to compose a patch to do away
with all the .tmp_* things at the build root, and move them into a
single .tmp/ directory - this would also seem to make a nice place to
put all sort of other temporary files in... I just never found the time
to actually do that, sorry.

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/