Bug 14870 - Illegal instruction DMB used on ARM
Summary: Illegal instruction DMB used on ARM
Status: RESOLVED FIXED
Alias: None
Product: Runtime
Classification: Mono
Component: JIT ()
Version: unspecified
Hardware: Other Linux
: --- normal
Target Milestone: ---
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2013-09-19 16:50 UTC by xamarin
Modified: 2013-12-06 15:33 UTC (History)
3 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED FIXED

Description xamarin 2013-09-19 16:50:42 UTC
The change
https://github.com/mono/mono/commit/488d55a58debebeb0c4727d2f012dd70d6c2412b#mono/io-layer/atomic.h
introduces DMB ioperation also for ARMv6.

There this operation does not exist.

According to http://www.raspberrypi.org/phpBB3/viewtopic.php?&t=1410 another instruction
"mcr p15,0,%0,c7,c10,5" can be used.

Please fix this issue, so mono can be compiled for armv6 again.
Comment 1 xamarin 2013-11-19 08:55:39 UTC
Anyone alive?
Comment 2 Rodrigo Kumpera 2013-12-06 15:33:11 UTC
This has been fixed in master a long time ago