linux-kernel - Re: [PATCH v2 11/29] vmlinux.lds.h: Replace RODATA with RO

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Date:   Tue, 12 Nov 2019 10:07:36 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Kees Cook <keescook@...omium.org>,
        Rick Edgecombe <rick.p.edgecombe@...el.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Michael Ellerman <mpe@...erman.id.au>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Will Deacon <will@...nel.org>,
        Linux-Arch <linux-arch@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        alpha <linux-alpha@...r.kernel.org>,
        "linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>,
        linux-s390 <linux-s390@...r.kernel.org>,
        linux-c6x-dev@...ux-c6x.org,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        Michal Simek <monstr@...str.eu>,
        Parisc List <linux-parisc@...r.kernel.org>,
        linux-xtensa@...ux-xtensa.org,
        the arch/x86 maintainers <x86@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 11/29] vmlinux.lds.h: Replace RODATA with RO_DATA

On Mon, Nov 11, 2019 at 07:08:51PM +0100, Geert Uytterhoeven wrote:
> vmlinux-std.lds: All other classic 680x0 targets with an MMU, e.g. plain
>                  defconfig aka multi_defconfig.

FWIW, the defconfig doesn't build with the cross compiler¹ here, even with Kees'
patch applied but for a different reason:

$ make.cross ARCH=m68k defconfig
...

$make.cross ARCH=m68k 2>w.log
...
drivers/video/fbdev/c2p_planar.o: In function `transp8':
c2p_planar.c:(.text+0x13a): undefined reference to `c2p_unsupported'
c2p_planar.c:(.text+0x1de): undefined reference to `c2p_unsupported'
drivers/video/fbdev/c2p_iplan2.o: In function `transp4x.constprop.0':
c2p_iplan2.c:(.text+0x98): undefined reference to `c2p_unsupported'
make: *** [Makefile:1094: vmlinux] Error 1


¹ https://mirrors.edge.kernel.org/pub/tools/crosstool/files/bin/x86_64/8.1.0/

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette