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From: Arnd Bergmann <arnd@arndb.de>
To: Stephen Warren <swarren@wwwdotorg.org>
Cc: linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, arm@kernel.org,
	Shawn Guo <shawn.guo@linaro.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Dinh Nguyen <dinguyen@altera.com>, Pavel Machek <pavel@denx.de>,
	Stephen Warren <swarren@nvidia.com>,
	Simon Horman <horms+renesas@verge.net.au>
Subject: Re: [PATCH 8/9] [HACK] ARM: imx: work around v7_cpu_resume link error
Date: Fri, 15 Feb 2013 11:05:14 +0000	[thread overview]
Message-ID: <201302151105.14253.arnd@arndb.de> (raw)
In-Reply-To: <511D7701.8040809@wwwdotorg.org>

On Thursday 14 February 2013, Stephen Warren wrote:
> On 02/14/2013 03:47 PM, Arnd Bergmann wrote:
> > Patch c08e20d24 "arm: Add v7_invalidate_l1 to cache-v7.S"
> > moves the v7_invalidate_l1 symbol out of imx/headsmp.S,
> > which seems to cause a link error because it is now
> > too far away from v7_cpu_resume when building an
> > allyesconfig kernel.
> 
> Is the problem from the following in arch/arm/mach-imx/headsmp.S:
> 
> ENTRY(v7_cpu_resume)
>         bl      v7_invalidate_l1
> 
> Isn't the range of bl +/- 32MiB (or +/- 16MibB in Thumb 2). Is the
> kernel really that big? Sorry, I'm having trouble understanding what
> causes the problem.


Well, it is an "allyesconfig" kernel, so things can get pretty big:

$ size  obj-tmp/vmlinux -A
obj-tmp/vmlinux  :
section                  size         addr
.head.text                504   3221258240
.text                32707336   3221258752
.text.head                  8   3253966088
.rodata              14028722   3253968896
__bug_table            127764   3267997624
.builtin_fw               684   3268125388
__ksymtab               53424   3268126072
__ksymtab_gpl           43560   3268179496
__kcrctab               26712   3268223056
__kcrctab_gpl           21780   3268249768
__ksymtab_strings      233706   3268271548
__param                 33104   3268505256
__modver                 4104   3268538360
__ex_table               4112   3268542464
.ARM.unwind_idx        967784   3268546576
.ARM.unwind_tab       1452168   3269514360
.notes                     36   3270966528
.init.text             677840   3270967296
.exit.text             125672   3271645136
.init.arch.info          5396   3271770808
.init.tagtable             72   3271776204
.init.smpalt              928   3271776276
.init.pv_table           1704   3271777204
.init.data             678108   3271778912
.exit.data                119   3272457020
.data..percpu         1460032   3272458240
.data                 3370068   3273924608
.tcm_start                940   3277294676
.bss                  8007724   3277295616
.comment                   43            0
.ARM.attributes            50            0
.debug_line          15780363            0
.debug_info          57192143            0
.debug_abbrev         5747374            0
.debug_aranges         299608            0
.debug_ranges         5414592            0
.debug_frame          4801748            0
.debug_str            7003282            0
.debug_loc           36237476            0
Total               196510790

THUMB2 support is obviously enabled (allyesconfig), and from the start of the
.head.text section to the end of .bss, it is 64,045,100 bytes, using yesterday's
linux-next kernel with my fixes. It will get bigger as we add more stuff
to multiplatform. The .text section alone is just short of 32MB.

	Arnd

  reply	other threads:[~2013-02-15 11:05 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-14 22:47 [PATCH 0/9] arm-soc/for-next allyesconfig build regressions Arnd Bergmann
2013-02-14 22:47 ` [PATCH 1/9] ARM: arch_timer: include linux/errno.h Arnd Bergmann
2013-02-15 10:26   ` Mark Rutland
2013-02-15 18:33     ` Arnd Bergmann
2013-02-14 22:47 ` [PATCH 2/9] ARM: imx: MACH_MX31ADS_WM1133_EV1 needs REGULATOR_WM8350 Arnd Bergmann
2013-02-15 17:21   ` Sascha Hauer
2013-02-14 22:47 ` [PATCH 3/9] ARM: omap2: include linux/errno.h in hwmod_reset Arnd Bergmann
2013-02-14 22:51   ` Tony Lindgren
2013-02-15 12:38     ` Arnd Bergmann
2013-02-14 22:58   ` Paul Walmsley
2013-02-14 22:47 ` [PATCH 4/9] ARM: omap: add include guard for soc.h Arnd Bergmann
2013-02-14 22:55   ` Tony Lindgren
2013-02-14 23:11     ` Arnd Bergmann
2013-02-15 12:40     ` Arnd Bergmann
2013-02-14 22:47 ` [PATCH 5/9] drm: export drm_vm_open_locked Arnd Bergmann
2013-02-14 22:47 ` [PATCH 6/9] net: cwdavinci_cpdma: export symbols for cpsw Arnd Bergmann
2013-02-14 22:52   ` David Miller
2013-02-14 22:47 ` [PATCH 7/9] remoteproc: omap: depend on OMAP_MBOX_FWK Arnd Bergmann
2013-02-14 22:55   ` Tony Lindgren
2013-02-15  6:56     ` Ohad Ben-Cohen
2013-02-14 22:47 ` [PATCH 8/9] [HACK] ARM: imx: work around v7_cpu_resume link error Arnd Bergmann
2013-02-14 23:45   ` Stephen Warren
2013-02-15 11:05     ` Arnd Bergmann [this message]
2013-02-15 11:13       ` Russell King - ARM Linux
2013-02-15 15:49         ` Arnd Bergmann
2013-02-15 11:07   ` Russell King - ARM Linux
2013-02-16  5:14     ` Nicolas Pitre
2013-02-18  5:55       ` Shawn Guo
2013-02-18 17:06         ` Nicolas Pitre
2013-02-19  1:42           ` Shawn Guo
2013-02-19  4:11             ` Nicolas Pitre
2013-02-19  5:10               ` Shawn Guo
2013-02-14 22:47 ` [PATCH 9/9] [media] davinci: do not include mach/hardware.h Arnd Bergmann
2013-02-14 22:57   ` Tony Lindgren
2013-02-15  5:06   ` Prabhakar Lad

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