Date: Thu, 30 Sep 2021 18:34:20 GMT From: Piotr Kubaj <pkubaj@FreeBSD.org> To: ports-committers@FreeBSD.org, dev-commits-ports-all@FreeBSD.org, dev-commits-ports-main@FreeBSD.org Subject: git: fb5f03a87cf4 - main - Mk/bsd.lto.mk: add global LTO support for ports Message-ID: <202109301834.18UIYKrL013410@gitrepo.freebsd.org>
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The branch main has been updated by pkubaj: URL: https://cgit.FreeBSD.org/ports/commit/?id=fb5f03a87cf432751fae1f0ae7f29c9d4fc65917 commit fb5f03a87cf432751fae1f0ae7f29c9d4fc65917 Author: Piotr Kubaj <pkubaj@FreeBSD.org> AuthorDate: 2021-09-30 18:27:50 +0000 Commit: Piotr Kubaj <pkubaj@FreeBSD.org> CommitDate: 2021-09-30 18:27:50 +0000 Mk/bsd.lto.mk: add global LTO support for ports It's well known that LTO provides both performance and size benefits for binaries. Add preliminary, opt-in support for global LTO enforcement to ports. Ports that provide LTO option on their own and the ones that don't work with LTO will need to set LTO_UNSAFE in the future. PR: 258536 --- Mk/bsd.lto.mk | 10 ++++++++++ Mk/bsd.port.mk | 4 ++++ 2 files changed, 14 insertions(+) diff --git a/Mk/bsd.lto.mk b/Mk/bsd.lto.mk new file mode 100644 index 000000000000..c2a079ea28bb --- /dev/null +++ b/Mk/bsd.lto.mk @@ -0,0 +1,10 @@ +# LTO Support + +LTO_Include_MAINTAINER= pkubaj@FreeBSD.org + +.if !defined(LTO_UNSAFE) +# Overridable as a user may want to use -flto +LTO_CFLAGS?= -flto=thin +CFLAGS+= ${LTO_CFLAGS} +CXXFLAGS+= ${LTO_CFLAGS} +.endif diff --git a/Mk/bsd.port.mk b/Mk/bsd.port.mk index 337d3f6be6a6..493b15a59fff 100644 --- a/Mk/bsd.port.mk +++ b/Mk/bsd.port.mk @@ -1799,6 +1799,10 @@ INSTALL_TARGET:= ${INSTALL_TARGET:S/^install-strip$/install/g} .endif .endif +.if defined(USE_LTO) +.include "${PORTSDIR}/Mk/bsd.lto.mk" +.endif + .if !defined(WITHOUT_SSP) .include "${PORTSDIR}/Mk/bsd.ssp.mk" .endif
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