Messages in this thread |  | | Date | Wed, 18 Apr 2018 18:54:43 +0100 | From | Russell King <> | Subject | Re: linux-next: build failure after merge of the arm-current tree |
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On Wed, Apr 18, 2018 at 01:31:55PM +1000, Stephen Rothwell wrote: > Hi Russell, > > After merging the arm-current tree, today's linux-next build > (lots of configs) failed like this: > > /bin/sh: 1: arithmetic expression: expecting primary: " " > (lots of these) > > Caused by commit > > fe680ca02c1e ("ARM: replace unnecessary perl with sed and the shell $(( )) operator") > > (pointed out by Michael Ellerman) > > Our /bin/sh is dash not bash ...
I tested this on 32-bit ARM with dash:
foo# dash # echo $(($(nm /boot/vmlinux-4.16.0+ | sed -n -e 's/^\([^ ]*\) B __bss_start$/-0x\1/p' -e 's/^\([^ ]*\) B __bss_stop$/+0x\1/p') )) 6409680 #
Any clues what '/bin/sh: 1: arithmetic expression: expecting primary: " "' actually means in reality?
I don't see why you should end up with lots of them either, unless maybe the sed expression isn't working for you.
The sed expression should end up producing output such as:
-0xc09138c4 +0xc0f30694
and that's it, two values, one preceded by a + and the other by a -.
-- Russell King ARM architecture Linux Kernel maintainer
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