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authorAlex Bennée <alex.bennee@linaro.org>2016-04-04 15:35:49 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2016-04-05 11:46:52 +0200
commitca47a926ad780d5cc91a205d25a859128cdf800e (patch)
treeabb3098a6ce88400688e8447174f53969a871d1b /hw/core/qdev-properties-system.c
parentccffff48c93c30733783b05cd1ef843a4c274653 (diff)
downloadfocaccia-qemu-ca47a926ad780d5cc91a205d25a859128cdf800e.tar.gz
focaccia-qemu-ca47a926ad780d5cc91a205d25a859128cdf800e.zip
include/qemu/atomic: add compile time asserts
To be safely portable no atomic access should be trying to do more than
the natural word width of the host. The most common abuse is trying to
atomically access 64 bit values on a 32 bit host.

This patch adds some QEMU_BUILD_BUG_ON to the __atomic instrinsic paths
to create a build failure if (sizeof(*ptr) > sizeof(void *)).

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <1459780549-12942-3-git-send-email-alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/core/qdev-properties-system.c')
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