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 <[email protected]>
> 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 <[email protected]>
> Cc: Kaz Kojima <[email protected]>
> Signed-off-by: Sam Ravnborg <[email protected]>
> ---
> 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
>
> -
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