Messages in this thread | | | Date | Tue, 2 Aug 2005 23:46:22 +0200 | From | Jan-Benedict Glaw <> | Subject | Re: [2.6 patch] remove support for gcc < 3.2 |
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On Mon, 2005-08-01 00:26:07 +0200, Adrian Bunk <bunk@stusta.de> wrote: > This patch removes support for gcc < 3.2 . > > The advantages are: > - reducing the number of supported gcc versions from 8 to 4 [1] > allows the removal of several #ifdef's and workarounds [...] > [1] support removed: 2.95, 2.96, 3.0, 3.1 > still supported: 3.2, 3.3, 3.4, 4.0
This patch in mind, I built the vax-linux kernel again with gcc-HEAD (gcc-4.1) and it blew off in:
$ make V=1 ARCH=vax CROSS_COMPILE=vax-linux- mopboot [...] vax-linux-gcc -Wp,-MD,init/.initramfs.o.d -nostdinc -isystem /home/jbglaw/vax-linux/scm/build-20050802-171439-vax-linux/install/usr/lib/gcc/vax-linux/4.1.0/include -D__KERNEL__ -Iinclude -Wall -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -ffreestanding -O1 -fomit-frame-pointer -pipe -Wdeclaration-after-statement -Wno-pointer-sign -DKBUILD_BASENAME=initramfs -DKBUILD_MODNAME=initramfs -c -o init/initramfs.o init/initramfs.c init/initramfs.c:10: error: message causes a section type conflict init/initramfs.c:33: error: head causes a section type conflict init/initramfs.c:80: error: ino causes a section type conflict init/initramfs.c:80: error: major causes a section type conflict [...]
Adding -fno-unit-at-a-time fixed this, but from what Google found, this is actually a bug in the C sources: the __initdata variables are to be put into a read-only segment but are missing a const qualifyer, so -fno-unit-at-a-time seems to hide a bug here.
Could somebody comment on this? Or shall I open a bug report for GCC?
MfG, JBG
-- Jan-Benedict Glaw jbglaw@lug-owl.de . +49-172-7608481 _ O _ "Eine Freie Meinung in einem Freien Kopf | Gegen Zensur | Gegen Krieg _ _ O fuer einen Freien Staat voll Freier Bürger" | im Internet! | im Irak! O O O ret = do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TCPA)); [unhandled content-type:application/pgp-signature] | |