linux-kernel - Re: [PATCH 5/8] ARM: tegra: work around tegra THUMB2

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Message-ID: <20120301204203.GA19274@n2100.arm.linux.org.uk>
Date:	Thu, 1 Mar 2012 20:42:04 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Stephen Warren <swarren@...dia.com>
Cc:	Alan Ott <alan@...nal11.us>, Colin Cross <ccross@...roid.com>,
	Olof Johansson <olof@...om.net>,
	Grant Likely <grant.likely@...retlab.ca>,
	Linus Walleij <linus.walleij@...ricsson.com>,
	Alan Stern <stern@...land.harvard.edu>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Lucas De Marchi <lucas.demarchi@...fusion.mobi>,
	Arnd Bergmann <arnd@...db.de>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>
Subject: Re: [PATCH 5/8] ARM: tegra: work around tegra THUMB2_KERNEL bug

On Thu, Mar 01, 2012 at 12:02:42PM -0800, Stephen Warren wrote:
> Alan Ott wrote at Thursday, March 01, 2012 12:27 PM:
> > From: Arnd Bergmann <arnd@...db.de>
> > 
> > The tegra smp code cannot currently be built for t2, so
> > disable that combination for now, as a workaround.
> > 
> > Signed-off-by: Arnd Bergmann <arnd@...db.de>
> 
> At least in next-20120229 with the .config I'm using, everything appears
> to compile fine. The link step does fail, but the error messages I get
> don't appear to be Tegra specific:
> 
> xxx/kernel/sched/clock.c:334: relocation truncated to fit: R_ARM_THM_JUMP11 against symbol `sched_clock' defined in .text section in arch/arm/kernel/built-in.o
> kernel/built-in.o: In function `post_relocation':
> xxx/kernel/module.c:2860: relocation truncated to fit: R_ARM_THM_JUMP11 against symbol `module_finalize' defined in .text section in arch/arm/kernel/built-in.o
> kernel/built-in.o: In function `show_interrupts':
> xxx/kernel/irq/proc.c:431: relocation truncated to fit: R_ARM_THM_JUMP11 against symbol `arch_show_interrupts' defined in .text section in arch/arm/kernel/built-in.o
> drivers/built-in.o: In function `pci_set_master':
> xxx/drivers/pci/pci.c:2674: relocation truncated to fit: R_ARM_THM_JUMP11 against symbol `pcibios_set_master' defined in .text section in arch/arm/kernel/built-in.o

At a guess, it suggests your kernel image is too big for the relocations
contained within the code.  That's something for Thumb people to look
into and solve.
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