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| author |   Khem Raj <raj.khem@gmail.com> | 2020-11-08 16:02:10 -0800 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2020-11-11 10:04:34 +0000 |
| commit | 0a5778f40f0d1a252f38151a1d4103fa7cbe7796 (patch) | |
| tree | 2c50d8745e7cd334142bfef50c44c272b7e358af | |
| parent | 770c69c51f87223eee7bd968fd28a5dc15a955d6 (diff) | |
| download | openembedded-core-contrib-0a5778f40f0d1a252f38151a1d4103fa7cbe7796.tar.gz | |
lto: Introduce LTOEXTRA variable
Certain packages may need additional flags to enable LTO, therefore
LTOEXTRA can be used to pass those flags
Add -flto-partition=none for alsa-lib
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
| -rw-r--r-- | meta/conf/distro/include/lto.inc | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/meta/conf/distro/include/lto.inc b/meta/conf/distro/include/lto.inc index d7fea26c64..eb36b892ca 100644 --- a/meta/conf/distro/include/lto.inc +++ b/meta/conf/distro/include/lto.inc @@ -18,6 +18,13 @@ LTO_pn-libcap = "" LTO_pn-libproxy = "" LTO_pn-libbsd = "" +# Custom LTO flags +# disable partitioning/streaming algorithm since its uses ASM +# constructs not compatible with lto +LTOEXTRA_pn-alsa-lib = "-flto-partition=none" + +LTOEXTRA ?= "" + # Override it for additional or different options if needed e.g. # with clang thin-lto might be better for compile speed # @@ -29,9 +36,9 @@ LTO_pn-libbsd = "" # -fuse-linker-plugin # ensures that libraries participate in LTO by supplying intermediate # code from .a files to linker -LTO ?= "-flto -ffat-lto-objects -fuse-linker-plugin " +LTO ?= "-flto -ffat-lto-objects -fuse-linker-plugin ${LTOEXTRA}" SELECTED_OPTIMIZATION_append = "${@bb.utils.contains('DISTRO_FEATURES', 'lto', ' ${LTO}', '', d)}" TARGET_LDFLAGS_append_class-target = "${@bb.utils.contains('DISTRO_FEATURES', 'lto', ' ${LTO}', '', d)}" -SELECTED_OPTIMIZATION[vardeps] += "LTO" +SELECTED_OPTIMIZATION[vardeps] += "LTO LTOEXTRA" |