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Date: Wed, 13 Jun 2007 08:15:07 +0200 From: Sam Ravnborg <sam@...nborg.org> To: Linus Torvalds <torvalds@...ux-foundation.org>, Andrew Morton <akpm@...ux-foundation.org>, Paul Mundt <lethal@...ux-sh.org> Cc: Kaz Kojima <kkojima@...iij4u.or.jp>, LKML <linux-kernel@...r.kernel.org> Subject: [git pull for 2.6.22-rc4 - resend] kbuild: fix sh64 section mismatch problems Resend of the below pull request. Sam On Mon, Jun 11, 2007 at 09:55:52PM +0200, Sam Ravnborg wrote: > Hi Linus. > > Please apply following 2 liners fix. > It will fix a lot of false section mismatch warnings on sh64 and > Paul asked to have in included before the relase hit the street. > > Please pull this single patch from: > git://master.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fix.git > > Sam > > Patch below for reference: > > modpost.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > >From 2648a53acf16a837e11836203aadb219bd951a1e Mon Sep 17 00:00:00 2001 > From: Sam Ravnborg <sam@...nborg.org> > Date: Mon, 11 Jun 2007 21:52:04 +0200 > Subject: [PATCH] kbuild: fix sh64 section mismatch problems > > There's a special .cranges section that is almost always generated, > with data being moved to the appropriate section by the linker at a later > stage. > > To give a bit of background, sh64 has both a native SHmedia instruction > set (32-bit instructions) and SHcompact (which is compatability with > normal SH -- 16-bit, a massively reduced register set, etc.). code ranges > are emitted when we're using the 32-bit ABI, but not the 64-bit one. > > It is a special staging section used solely by binutils where code with > different flags get placed (more specifically differing flags for input > and output sections), before being lazily merged by the linker. > > The closest I've been able to find to documentation is: > http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/ld/emultempl/sh64elf.em?rev=1.10&content-type=text/x-cvsweb-markup&cvsroot=src > > It's an array of 8-byte Elf32_CRange structure given in > http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/bfd/elf32-sh64.h?rev=1.4&content-type=text/x-cvsweb-markup&cvsroot=src > that describes for which ISA a range is used. > > Silence the warnings by allowing references from .init.text to .cranges. > > The following warnings are fixed: > > WARNING: init/built-in.o(.cranges+0x0): Section mismatch: reference to .init.text: > WARNING: init/built-in.o(.cranges+0xa): Section mismatch: reference to .init.text: > WARNING: init/built-in.o(.cranges+0x14): Section mismatch: reference to .init.text: > WARNING: init/built-in.o(.cranges+0x1e): Section mismatch: reference to .init.text: > WARNING: init/built-in.o(.cranges+0x28): Section mismatch: reference to .init.text: > WARNING: init/built-in.o(.cranges+0x32): Section mismatch: reference to .init.text: > WARNING: kernel/built-in.o(.cranges+0x50): Section mismatch: reference to .init.text: > WARNING: kernel/built-in.o(.cranges+0x5a): Section mismatch: reference to .init.text: > WARNING: kernel/built-in.o(.cranges+0x64): Section mismatch: reference to .init.text: > WARNING: kernel/built-in.o(.cranges+0xfa): Section mismatch: reference to .init.text: > WARNING: kernel/built-in.o(.cranges+0x104): Section mismatch: reference to .init.text: > WARNING: kernel/built-in.o(.cranges+0x10e): Section mismatch: reference to .init.text: > WARNING: kernel/built-in.o(.cranges+0x14a): Section mismatch: reference to .init.text: > WARNING: kernel/built-in.o(.cranges+0x154): Section mismatch: reference to .init.text: > WARNING: kernel/built-in.o(.cranges+0x15e): Section mismatch: reference to .init.text: > WARNING: mm/built-in.o(.cranges+0x6e): Section mismatch: reference to .init.text: > WARNING: mm/built-in.o(.cranges+0x78): Section mismatch: reference to .init.text: > WARNING: mm/built-in.o(.cranges+0x82): Section mismatch: reference to .init.text: > WARNING: mm/built-in.o(.cranges+0xaa): Section mismatch: reference to .init.text: > WARNING: fs/built-in.o(.cranges+0x136): Section mismatch: reference to .init.text: > WARNING: fs/built-in.o(.cranges+0x140): Section mismatch: reference to .init.text: > WARNING: fs/built-in.o(.cranges+0x14a): Section mismatch: reference to .init.text: > WARNING: fs/built-in.o(.cranges+0x168): Section mismatch: reference to .init.text: > WARNING: fs/built-in.o(.cranges+0x1f4): Section mismatch: reference to .init.text: > WARNING: fs/built-in.o(.cranges+0x1fe): Section mismatch: reference to .init.text: > WARNING: net/built-in.o(.cranges+0x302): Section mismatch: reference to .init.text: > WARNING: net/built-in.o(.cranges+0x30c): Section mismatch: reference to .init.text: > WARNING: net/built-in.o(.cranges+0x316): Section mismatch: reference to .init.text: > WARNING: net/built-in.o(.cranges+0x3a2): Section mismatch: reference to .init.text: > WARNING: net/built-in.o(.cranges+0x3ac): Section mismatch: reference to .init.text: > WARNING: net/built-in.o(.cranges+0x4ce): Section mismatch: reference to .init.text: > WARNING: net/built-in.o(.cranges+0x4d8): Section mismatch: reference to .init.text: > > Signed-off-by: Paul Mundt <lethal@...ux-sh.org> > Cc: Kaz Kojima <kkojima@...iij4u.or.jp> > Signed-off-by: Sam Ravnborg <sam@...nborg.org> > --- > scripts/mod/modpost.c | 2 ++ > 1 files changed, 2 insertions(+), 0 deletions(-) > > diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c > index 8e5610d..3645e98 100644 > --- a/scripts/mod/modpost.c > +++ b/scripts/mod/modpost.c > @@ -1052,6 +1052,7 @@ static int init_section_ref_ok(const char *name) > ".plt", /* seen on ARCH=um build on x86_64. Harmless */ > "__ftr_fixup", /* powerpc cpu feature fixup */ > "__fw_ftr_fixup", /* powerpc firmware feature fixup */ > + ".cranges", /* used by sh64 */ > NULL > }; > /* Start of section names */ > @@ -1132,6 +1133,7 @@ static int exit_section_ref_ok(const char *name) > ".fixup", > ".smp_locks", > ".plt", /* seen on ARCH=um build on x86_64. Harmless */ > + ".cranges", /* used by sh64 */ > NULL > }; > /* Start of section names */ > -- > 1.5.1.rc3.1544.g8a923 > > - > 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/ - 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/
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