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authorDamjan Marion <damarion@cisco.com>2020-10-22 14:23:47 +0200
committerFlorin Coras <florin.coras@gmail.com>2020-11-05 20:51:03 +0000
commitaf7892c08b2d4984f4c93bb8c7cc07aec36b5055 (patch)
tree2d09c5297cc8b1e38f3ec7a755054e88957ec9e0 /src/CMakeLists.txt
parent066cd812374460e5ca8be9a88f494fe3f5bf911e (diff)
build: link time optimization for release builds
Type: improvement Change-Id: I0e24f1d2ad5c7a11a8bd40125428f86aca867bec Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/CMakeLists.txt')
-rw-r--r--src/CMakeLists.txt13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 0d971fd8ebc..6fc243ca4d2 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -11,13 +11,14 @@
# See the License for the specific language governing permissions and
# limitations under the License.
-cmake_minimum_required(VERSION 3.5 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.10)
set(CMAKE_C_COMPILER_NAMES clang-11 clang-10 clang-9 gcc-10 gcc-9 cc)
project(vpp C)
include(CheckCCompilerFlag)
+include(CheckIPOSupported)
include(cmake/misc.cmake)
include(cmake/cpu.cmake)
include(cmake/ccache.cmake)
@@ -106,6 +107,16 @@ set_property(CACHE CMAKE_BUILD_TYPE PROPERTY
HELPSTRING "Build type - valid options are: ${BUILD_TYPES}")
##############################################################################
+# link time optimizations
+##############################################################################
+if (CMAKE_BUILD_TYPE_UC STREQUAL "RELEASE")
+ check_ipo_supported(RESULT _result)
+ if (_result)
+ option(VPP_USE_LTO "Link time optimization of release binaries" ON)
+ endif()
+endif()
+
+##############################################################################
# sanitizers
##############################################################################