[PATCH] recordmcount: arm64: replace the ignored mcount call into nop
will.deacon at arm.com
Thu Oct 29 08:09:22 PDT 2015
On Thu, Oct 29, 2015 at 09:35:42PM +0800, kbuild test robot wrote:
> [auto build test ERROR on arm64/for-next/core -- if it's inappropriate base, please suggest rules for selecting the more suitable base]
> url: https://github.com/0day-ci/linux/commits/Li-Bin/recordmcount-arm64-replace-the-ignored-mcount-call-into-nop/20151028-160846
> config: arm64-allmodconfig (attached as .config)
> wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
> chmod +x ~/bin/make.cross
> # save the attached .config to linux build tree
> make.cross ARCH=arm64
> All errors (new ones prefixed by >>):
> >> /bin/bash: line 1: 117734 Segmentation fault ./scripts/recordmcount "arch/arm64/kernel/traps.o"
> >> /bin/bash: line 1: 113824 Segmentation fault ./scripts/recordmcount "arch/arm64/mm/fault.o"
I can reproduce this locally with an allmodconfig build. The offset
parameter to make_nop_arm64 is nuts:
Program received signal SIGSEGV, Segmentation fault.
make_nop_arm64 (map=0x7ffff7fef000, offset=2600547309829750784) at scripts/recordmcount.c:170
170 if (*ptr != 0x94000000)
Both shdr->sh_offset (0x17000000000000) and relp->r_offset (0x2400000000000000)
look dodgy in the caller.
Li, can you take a look please?
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