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authorDaniele Buono <dbuono@linux.vnet.ibm.com>2020-12-04 18:06:11 -0500
committerPaolo Bonzini <pbonzini@redhat.com>2021-01-02 21:03:09 +0100
commitcdad781d0945a39c936999b75ca18dbf066c1708 (patch)
treef9c31d342175ed4c009d83468b0c0f319ee33b39 /configure
parent3df1a3d070575419859cbbab1083fafa7ec2669a (diff)
configure,meson: add option to enable LTO
This patch allows to compile QEMU with link-time optimization (LTO). Compilation with LTO is handled directly by meson. This patch only adds the option in configure and forwards the request to meson Tested with all major versions of clang from 6 to 12 Signed-off-by: Daniele Buono <dbuono@linux.vnet.ibm.com> Message-Id: <20201204230615.2392-2-dbuono@linux.vnet.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'configure')
-rwxr-xr-xconfigure7
1 files changed, 7 insertions, 0 deletions
diff --git a/configure b/configure
index 8ef0874ed5..b6fb188151 100755
--- a/configure
+++ b/configure
@@ -242,6 +242,7 @@ host_cc="cc"
audio_win_int=""
libs_qga=""
debug_info="yes"
+lto="false"
stack_protector=""
safe_stack=""
use_containers="yes"
@@ -1182,6 +1183,10 @@ for opt do
;;
--disable-werror) werror="no"
;;
+ --enable-lto) lto="true"
+ ;;
+ --disable-lto) lto="false"
+ ;;
--enable-stack-protector) stack_protector="yes"
;;
--disable-stack-protector) stack_protector="no"
@@ -1779,6 +1784,7 @@ disabled with --disable-FEATURE, default is enabled if available
module-upgrades try to load modules from alternate paths for upgrades
debug-tcg TCG debugging (default is disabled)
debug-info debugging information
+ lto Enable Link-Time Optimization.
sparse sparse checker
safe-stack SafeStack Stack Smash Protection. Depends on
clang/llvm >= 3.7 and requires coroutine backend ucontext.
@@ -6965,6 +6971,7 @@ NINJA=$ninja $meson setup \
-Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
${staticpic:+-Db_staticpic=$staticpic} \
-Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
+ -Db_lto=$lto \
-Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
-Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
-Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \