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authorPaolo Bonzini <pbonzini@redhat.com>2020-10-07 17:00:17 +0100
committerAlex Bennée <alex.bennee@linaro.org>2020-10-09 17:27:50 +0100
commit0c3dd50eaecbfe267db1e90c2ade165da331e143 (patch)
tree121f32ca28743fe50ca6b59fbf69cd5771ab666e /hw/misc/mips_cpc.c
parent4a7c0bd9dcb08798c6f82e55b5a3423f7ee669f1 (diff)
downloadfocaccia-qemu-0c3dd50eaecbfe267db1e90c2ade165da331e143.tar.gz
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configure: fix performance regression due to PIC objects
Because most files in QEMU are grouped into static libraries, Meson conservatively
compiles them with -fPIC.  This is overkill and produces slowdowns up to 20% on
some TCG tests.

As a stopgap measure, use the b_staticpic option to limit the slowdown to
--enable-pie.  https://github.com/mesonbuild/meson/pull/7760 will allow
us to use b_staticpic=false and let Meson do the right thing.

Reported-by: Ahmed Karaman <ahmedkrmn@outlook.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200924092314.1722645-57-pbonzini@redhat.com>
Message-Id: <20201007160038.26953-2-alex.bennee@linaro.org>
Diffstat (limited to 'hw/misc/mips_cpc.c')
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