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| author | Khem Raj <raj.khem@gmail.com> | 2019-02-08 10:07:54 -0800 |
|---|---|---|
| committer | Khem Raj <raj.khem@gmail.com> | 2019-02-09 19:27:13 -0800 |
| commit | 48107e9c52b6ef16174280db582b078f687ae99f (patch) | |
| tree | 0d54433fd0df6423972c70dcde3b43f4eced6431 /classes/lto.bbclass | |
| parent | 00b9cd93d591099071e7087b9a354da6338dc1b7 (diff) | |
| download | meta-clang-48107e9c52b6ef16174280db582b078f687ae99f.tar.gz | |
clang: Enable LTO and lld based on distro knobs
Add to local.conf or distro config the following to enable lto flavors
and lld linker
DISTRO_FEATURES += "thin-lto"
DISTRO_FEATURES += "full-lto"
DISTRO_FEATURES += "lld"
Add lto.bbclass
To enable LTO is currently per recipe, or globally
to enable globally add following to global config meta-data e.g.
local.conf
INHRIT += "lto"
other-wise enable LTO per recipe using
inherit lto to recipe via bbappend or in main recipe
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Diffstat (limited to 'classes/lto.bbclass')
| -rw-r--r-- | classes/lto.bbclass | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/classes/lto.bbclass b/classes/lto.bbclass new file mode 100644 index 0000000..80a3d4d --- /dev/null +++ b/classes/lto.bbclass | |||
| @@ -0,0 +1,7 @@ | |||
| 1 | # Enable LTO based on global distro settings | ||
| 2 | TOOLCHAIN_OPTIONS_append_toolchain-clang = "${@bb.utils.contains('DISTRO_FEATURES', 'thin-lto', ' -flto=thin -fuse-ld=gold', '', d)}" | ||
| 3 | TOOLCHAIN_OPTIONS_append_toolchain-clang = "${@bb.utils.contains('DISTRO_FEATURES', 'full-lto', ' -flto=full -fuse-ld=gold', '', d)}" | ||
| 4 | RANLIB_toolchain-clang = "${STAGING_BINDIR_TOOLCHAIN}/${TARGET_PREFIX}llvm-ranlib" | ||
| 5 | AR_toolchain-clang = "${STAGING_BINDIR_TOOLCHAIN}/${TARGET_PREFIX}llvm-ar" | ||
| 6 | NM_toolchain-clang = "${STAGING_BINDIR_TOOLCHAIN}/${TARGET_PREFIX}llvm-nm" | ||
| 7 | |||