[OE-core] [PATCH] lto.inc: Add global LTO distro policy file
Distros which want to enable LTO can utilize this file, it only covers
packages from OE-Core, other layers should include there own exclusion
list for recipe which dont work with LTO
Signed-off-by: Khem Raj
---
meta/conf/distro/include/lto.inc | 23 +++
1 file changed, 23 insertions(+)
create mode 100644 meta/conf/distro/include/lto.inc
diff --git a/meta/conf/distro/include/lto.inc b/meta/conf/distro/include/lto.inc
new file mode 100644
index 00..0cedc8deca
--- /dev/null
+++ b/meta/conf/distro/include/lto.inc
@@ -0,0 +1,23 @@
+LTO_pn-glibc = ""
+LTO_pn-gcc-runtime = ""
+LTO_pn-libgcc-initial = ""
+LTO_pn-libgcc = ""
+LTO_pn-libpam = ""
+LTO_pn-elfutils = ""
+LTO_pn-perl = ""
+LTO_pn-busybox = ""
+LTO_pn-libxcrypt = ""
+LTO_pn-curl = ""
+LTO_pn-libcap = ""
+LTO_pn-python3 = ""
+LTO_pn-libproxy = ""
+LTO_pn-libbsd = ""
+
+LTO ?= "-flto"
+
+SELECTED_OPTIMIZATION_append_class-target = " ${LTO}"
+TARGET_LDFLAGS_append_class-target = " ${LTO}"
+
+SELECTED_OPTIMIZATION[vardeps] += "LTO"
+
+PACKAGE_DEBUG_SPLIT_STYLE = "debug-without-src"
--
2.25.2
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Re: [OE-core] [PATCH] lto.inc: Add global LTO distro policy file
On Mon, 2020-03-23 at 16:25 -0700, Khem Raj wrote:
> Distros which want to enable LTO can utilize this file, it only
> covers
> packages from OE-Core, other layers should include there own
> exclusion
> list for recipe which dont work with LTO
>
> Signed-off-by: Khem Raj
> ---
> meta/conf/distro/include/lto.inc | 23 +++
> 1 file changed, 23 insertions(+)
> create mode 100644 meta/conf/distro/include/lto.inc
>
> diff --git a/meta/conf/distro/include/lto.inc
> b/meta/conf/distro/include/lto.inc
> new file mode 100644
> index 00..0cedc8deca
> --- /dev/null
> +++ b/meta/conf/distro/include/lto.inc
> @@ -0,0 +1,23 @@
> +LTO_pn-glibc = ""
> +LTO_pn-gcc-runtime = ""
> +LTO_pn-libgcc-initial = ""
> +LTO_pn-libgcc = ""
> +LTO_pn-libpam = ""
> +LTO_pn-elfutils = ""
> +LTO_pn-perl = ""
> +LTO_pn-busybox = ""
> +LTO_pn-libxcrypt = ""
> +LTO_pn-curl = ""
> +LTO_pn-libcap = ""
> +LTO_pn-python3 = ""
> +LTO_pn-libproxy = ""
> +LTO_pn-libbsd = ""
> +
> +LTO ?= "-flto"
> +
> +SELECTED_OPTIMIZATION_append_class-target = " ${LTO}"
> +TARGET_LDFLAGS_append_class-target = " ${LTO}"
> +
> +SELECTED_OPTIMIZATION[vardeps] += "LTO"
> +
> +PACKAGE_DEBUG_SPLIT_STYLE = "debug-without-src"
Why do we need to specify the debug split style here?
Cheers,
Richard
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Re: [OE-core] [PATCH] lto.inc: Add global LTO distro policy file
On Mon, Mar 23, 2020 at 04:25:29PM -0700, Khem Raj wrote: > Distros which want to enable LTO can utilize this file, it only covers > packages from OE-Core, other layers should include there own exclusion > list for recipe which dont work with LTO >... > +++ b/meta/conf/distro/include/lto.inc > @@ -0,0 +1,23 @@ > +LTO_pn-glibc = "" > +LTO_pn-gcc-runtime = "" > +LTO_pn-libgcc-initial = "" > +LTO_pn-libgcc = "" > +LTO_pn-libpam = "" > +LTO_pn-elfutils = "" > +LTO_pn-perl = "" > +LTO_pn-busybox = "" > +LTO_pn-libxcrypt = "" > +LTO_pn-curl = "" > +LTO_pn-libcap = "" > +LTO_pn-python3 = "" > +LTO_pn-libproxy = "" > +LTO_pn-libbsd = "" >... It would be better to have these in the individual recipes, it is much easier to understand what is going on when all recipe-specific information is in the recipe. Otherwise this will end as an implementation of workarounds that might not even be needed anymore, for a previous example with several workarounds that were no longer needed see https://git.openembedded.org/openembedded-core/commit/?id=8bbb17d2dcafa9b4e26941a55932f4be2782e1d1 cu Adrian -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#136630): https://lists.openembedded.org/g/openembedded-core/message/136630 Mute This Topic: https://lists.openembedded.org/mt/72506212/21656 Group Owner: openembedded-core+ow...@lists.openembedded.org Unsubscribe: https://lists.openembedded.org/g/openembedded-core/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [OE-core] [PATCH] lto.inc: Add global LTO distro policy file
On Mon, Mar 23, 2020 at 04:25:29PM -0700, Khem Raj wrote: >... > +LTO_pn-python3 = "" >... Building Python with LTO works by passing --with-lto to configure. cu Adrian -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#136637): https://lists.openembedded.org/g/openembedded-core/message/136637 Mute This Topic: https://lists.openembedded.org/mt/72506212/21656 Group Owner: openembedded-core+ow...@lists.openembedded.org Unsubscribe: https://lists.openembedded.org/g/openembedded-core/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [OE-core] [PATCH] lto.inc: Add global LTO distro policy file
On Tue, 2020-03-24 at 13:27 +0200, Adrian Bunk wrote: > On Mon, Mar 23, 2020 at 04:25:29PM -0700, Khem Raj wrote: > > Distros which want to enable LTO can utilize this file, it only > > covers > > packages from OE-Core, other layers should include there own > > exclusion > > list for recipe which dont work with LTO > > ... > > +++ b/meta/conf/distro/include/lto.inc > > @@ -0,0 +1,23 @@ > > +LTO_pn-glibc = "" > > +LTO_pn-gcc-runtime = "" > > +LTO_pn-libgcc-initial = "" > > +LTO_pn-libgcc = "" > > +LTO_pn-libpam = "" > > +LTO_pn-elfutils = "" > > +LTO_pn-perl = "" > > +LTO_pn-busybox = "" > > +LTO_pn-libxcrypt = "" > > +LTO_pn-curl = "" > > +LTO_pn-libcap = "" > > +LTO_pn-python3 = "" > > +LTO_pn-libproxy = "" > > +LTO_pn-libbsd = "" > > ... > > It would be better to have these in the individual recipes, > it is much easier to understand what is going on when all > recipe-specific information is in the recipe. I disagree. These files do let someone working on specific enablement see the status collectively and allow people to opt in/out of a given development feature. At some point in the future that can tip into making more sense in a recipe but its a staged process and things often make sense to start like this. Cheers, Richard -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#136638): https://lists.openembedded.org/g/openembedded-core/message/136638 Mute This Topic: https://lists.openembedded.org/mt/72506212/21656 Group Owner: openembedded-core+ow...@lists.openembedded.org Unsubscribe: https://lists.openembedded.org/g/openembedded-core/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [OE-core] [PATCH] lto.inc: Add global LTO distro policy file
On Mon, Mar 23, 2020 at 04:25:29PM -0700, Khem Raj wrote: > Distros which want to enable LTO can utilize this file, it only covers > packages from OE-Core, other layers should include there own exclusion > list for recipe which dont work with LTO >... More and more upstreams already default to LTO in their build system. What is the recommended way to get the correct configure options to disable LTO in all such recipes? The option is obviously recipe-specific, but there has to be some global define the recipe can check for disable/default/enable. cu Adrian -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#136639): https://lists.openembedded.org/g/openembedded-core/message/136639 Mute This Topic: https://lists.openembedded.org/mt/72506212/21656 Group Owner: openembedded-core+ow...@lists.openembedded.org Unsubscribe: https://lists.openembedded.org/g/openembedded-core/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [OE-core] [PATCH] lto.inc: Add global LTO distro policy file
On Tue, Mar 24, 2020 at 1:37 AM Richard Purdie
wrote:
>
> On Mon, 2020-03-23 at 16:25 -0700, Khem Raj wrote:
> > Distros which want to enable LTO can utilize this file, it only
> > covers
> > packages from OE-Core, other layers should include there own
> > exclusion
> > list for recipe which dont work with LTO
> >
> > Signed-off-by: Khem Raj
> > ---
> > meta/conf/distro/include/lto.inc | 23 +++
> > 1 file changed, 23 insertions(+)
> > create mode 100644 meta/conf/distro/include/lto.inc
> >
> > diff --git a/meta/conf/distro/include/lto.inc
> > b/meta/conf/distro/include/lto.inc
> > new file mode 100644
> > index 00..0cedc8deca
> > --- /dev/null
> > +++ b/meta/conf/distro/include/lto.inc
> > @@ -0,0 +1,23 @@
> > +LTO_pn-glibc = ""
> > +LTO_pn-gcc-runtime = ""
> > +LTO_pn-libgcc-initial = ""
> > +LTO_pn-libgcc = ""
> > +LTO_pn-libpam = ""
> > +LTO_pn-elfutils = ""
> > +LTO_pn-perl = ""
> > +LTO_pn-busybox = ""
> > +LTO_pn-libxcrypt = ""
> > +LTO_pn-curl = ""
> > +LTO_pn-libcap = ""
> > +LTO_pn-python3 = ""
> > +LTO_pn-libproxy = ""
> > +LTO_pn-libbsd = ""
> > +
> > +LTO ?= "-flto"
> > +
> > +SELECTED_OPTIMIZATION_append_class-target = " ${LTO}"
> > +TARGET_LDFLAGS_append_class-target = " ${LTO}"
> > +
> > +SELECTED_OPTIMIZATION[vardeps] += "LTO"
> > +
> > +PACKAGE_DEBUG_SPLIT_STYLE = "debug-without-src"
>
> Why do we need to specify the debug split style here?
>
debug file generator does not generate debugsrc packages with lto i
have not investigates in
detail but its due to the fact that .o files are not normal elf objs
> Cheers,
>
> Richard
>
>
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Re: [OE-core] [PATCH] lto.inc: Add global LTO distro policy file
On Tue, Mar 24, 2020 at 4:37 AM Adrian Bunk wrote: > > On Mon, Mar 23, 2020 at 04:25:29PM -0700, Khem Raj wrote: > >... > > +LTO_pn-python3 = "" > >... > > Building Python with LTO works by passing --with-lto to configure. I think per recipe knobs I did not work on yet but perhaps worth adding them in next release or may be as packageconfig dependent on lto distro feature > > cu > Adrian -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#136643): https://lists.openembedded.org/g/openembedded-core/message/136643 Mute This Topic: https://lists.openembedded.org/mt/72506212/21656 Group Owner: openembedded-core+ow...@lists.openembedded.org Unsubscribe: https://lists.openembedded.org/g/openembedded-core/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [OE-core] [PATCH] lto.inc: Add global LTO distro policy file
On Tue, Mar 24, 2020 at 4:50 AM Richard Purdie wrote: > > On Tue, 2020-03-24 at 13:27 +0200, Adrian Bunk wrote: > > On Mon, Mar 23, 2020 at 04:25:29PM -0700, Khem Raj wrote: > > > Distros which want to enable LTO can utilize this file, it only > > > covers > > > packages from OE-Core, other layers should include there own > > > exclusion > > > list for recipe which dont work with LTO > > > ... > > > +++ b/meta/conf/distro/include/lto.inc > > > @@ -0,0 +1,23 @@ > > > +LTO_pn-glibc = "" > > > +LTO_pn-gcc-runtime = "" > > > +LTO_pn-libgcc-initial = "" > > > +LTO_pn-libgcc = "" > > > +LTO_pn-libpam = "" > > > +LTO_pn-elfutils = "" > > > +LTO_pn-perl = "" > > > +LTO_pn-busybox = "" > > > +LTO_pn-libxcrypt = "" > > > +LTO_pn-curl = "" > > > +LTO_pn-libcap = "" > > > +LTO_pn-python3 = "" > > > +LTO_pn-libproxy = "" > > > +LTO_pn-libbsd = "" > > > ... > > > > It would be better to have these in the individual recipes, > > it is much easier to understand what is going on when all > > recipe-specific information is in the recipe. > > I disagree. These files do let someone working on specific enablement > see the status collectively and allow people to opt in/out of a given > development feature. > > At some point in the future that can tip into making more sense in a > recipe but its a staged process and things often make sense to start > like this. yeah. Maybe there should be a distro feature knob this inc file should add which can be used by recipes for an exception like adding configure options > > Cheers, > > Richard > -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#136644): https://lists.openembedded.org/g/openembedded-core/message/136644 Mute This Topic: https://lists.openembedded.org/mt/72506212/21656 Group Owner: openembedded-core+ow...@lists.openembedded.org Unsubscribe: https://lists.openembedded.org/g/openembedded-core/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
