78 lines
3.2 KiB
Diff
78 lines
3.2 KiB
Diff
From 50b575b27b9daa331da08d10dbe6524de0580833 Mon Sep 17 00:00:00 2001
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From: Paolo Bonzini <pbonzini@redhat.com>
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Date: Wed, 16 Dec 2020 17:53:08 -0500
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Subject: build-system: use b_staticpic=false
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Paolo Bonzini <pbonzini@redhat.com>
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Message-id: <20201216175308.1463822-3-pbonzini@redhat.com>
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Patchwork-id: 100484
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O-Subject: [RHEL-AV-8.4.0 qemu-kvm PATCH 2/2] build-system: use b_staticpic=false
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Bugzilla: 1899619
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RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
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Meson 0.56.0 correctly builds non-PIC static libraries with -fPIE if
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b_pie=true, while Meson 0.55.3 has a bug that causes the library
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to use non-PIE objects and fail to link. Therefore, upstream
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QEMU looks at the meson version in order to decide between
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b_staticpic=false and b_staticpic=$pie.
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Unfortunately, b_staticpic=$pie still has a negative effect
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on performance when you QEMU is compiled with --enable-pie
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like RHEL does. Therefore, we have backported the fix
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to Meson 0.55.3-3.el8. We can require it and unconditionally
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use b_staticpic=false.
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The patch is RHEL-specific, but a similar change is included
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in the larger patch for "meson: switch minimum meson version to
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0.56.0".
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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configure | 5 -----
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meson.build | 4 ++--
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redhat/qemu-kvm.spec.template | 2 +-
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3 files changed, 3 insertions(+), 8 deletions(-)
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diff --git a/configure b/configure
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index 18c26e0389..d60097c0d4 100755
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--- a/configure
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+++ b/configure
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@@ -6979,10 +6979,6 @@ fi
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mv $cross config-meson.cross
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rm -rf meson-private meson-info meson-logs
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-unset staticpic
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-if ! version_ge "$($meson --version)" 0.56.0; then
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- staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
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-fi
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NINJA=$ninja $meson setup \
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--prefix "$prefix" \
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--libdir "$libdir" \
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@@ -7002,7 +6998,6 @@ NINJA=$ninja $meson setup \
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-Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
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-Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
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-Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
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- ${staticpic:+-Db_staticpic=$staticpic} \
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-Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
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-Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
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-Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
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diff --git a/meson.build b/meson.build
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index 8c38b2ea36..c482d075d5 100644
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--- a/meson.build
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+++ b/meson.build
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@@ -1,6 +1,6 @@
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project('qemu', ['c'], meson_version: '>=0.55.0',
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- default_options: ['warning_level=1', 'c_std=gnu99', 'cpp_std=gnu++11', 'b_colorout=auto'] +
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- (meson.version().version_compare('>=0.56.0') ? [ 'b_staticpic=false' ] : []),
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+ default_options: ['warning_level=1', 'c_std=gnu99', 'cpp_std=gnu++11', 'b_colorout=auto',
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+ 'b_staticpic=false' ],
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version: run_command('head', meson.source_root() / 'VERSION').stdout().strip())
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not_found = dependency('', required: false)
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