|From:||Willy Tarreau <firstname.lastname@example.org>|
|Date:||Sat, 8 Sep 2007 17:22:27 +0000|
I've just released Linux 188.8.131.52. The removal of -fno-unit-at-a-time in 184.108.40.206 in order to fix build with gcc-4.2 uncovered nasty optimization issues in the current code under gcc-4.x. This option not only prevents gcc from reordering sections, it also prevents it from doing a better optimization of some inlinable functions and from stripping out static variables which apparently never get assigned. Since the removal of the option, some users were caught by modules which had no symbol for certain parameters ; this is a very annoying regression which forced them to go back to 2.4.34.x. So I have restored -fno-unit-at-a-time for now, and yes, it *will* break gcc-4.2. But the breakage will be detected at build time now, and people will not get randomly working modules. I am currently exploring several solutions to this issue, one of them consisting in fixing broken modules since -fno-unit-at-a-time is already deprecated. If I find something reasonably non-intrusive, I will consider it for 2.4.36-pre. Right now, I expect 220.127.116.11 to be safe for gcc-4.1 users. Willy -- The patch and changelog will appear soon at the following locations: ftp://ftp.all.kernel.org/pub/linux/kernel/v2.4/ ftp://ftp.all.kernel.org/pub/linux/kernel/v2.4/patch-2.4.... ftp://ftp.all.kernel.org/pub/linux/kernel/v2.4/ChangeLog-... Git repository: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-v2.4.35.y.git http://www.kernel.org/pub/scm/linux/kernel/git/stable/lin... Git repository through the gitweb interface: http://git.kernel.org/?p=linux/kernel/git/stable/linux-v2... Summary of changes from v18.104.22.168 to v22.214.171.124 ============================================ Willy Tarreau (3): i386: do_test_wp_bit() must not be inlined restore -fno-unit-at-a-time on GCC >= 4 Change VERSION to 126.96.36.199 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to email@example.com More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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