[PATCH] tools/gnu: Enable LTO in RSB tools

[Joel Sherrill]

What's the problem with enabling LTO support in the tools by default?

Using it is a different matter.

--joel

On Wed, Jun 15, 2022, 7:20 AM <chrisj at rtems.org> wrote:

> From: Chris Johns <chrisj at rtems.org>
>
> ---
>  source-builder/config/binutils-2-1.cfg |  6 +-----
>  source-builder/config/gcc-common-1.cfg | 10 +++-------
>  2 files changed, 4 insertions(+), 12 deletions(-)
>
> diff --git a/source-builder/config/binutils-2-1.cfg
> b/source-builder/config/binutils-2-1.cfg
> index a49fa2a..6de33ae 100644
> --- a/source-builder/config/binutils-2-1.cfg
> +++ b/source-builder/config/binutils-2-1.cfg
> @@ -26,14 +26,11 @@ URL:           http://sources.redhat.com/binutils
>  %define allow_cxc
>
>  #
> -# Default gold and LTO to disable.
> +# Default gold to disable.
>  #
>  %ifn %{defined with_gold}
>   %define with_gold 0
>  %endif
> -%ifn %{defined with_lto}
> - %define with_lto 0
> -%endif
>
>  #
>  # Source
> @@ -72,7 +69,6 @@ URL:     http://sources.redhat.com/binutils
>      %{?with_deterministic_archives:--enable-deterministic-archives} \
>      %{?with_64_bit_bfd:--enable-64-bit-bfd} \
>      %{?with_gold:--enable-gold=yes} \
> -    %{?with_lto:--enable-lto --enable-plugins}%{!?with_lto:--disable-lto}
> \
>      --without-included-gettext \
>      --disable-win32-registry \
>      --disable-werror \
> diff --git a/source-builder/config/gcc-common-1.cfg
> b/source-builder/config/gcc-common-1.cfg
> index 05e0e3c..694a1f3 100644
> --- a/source-builder/config/gcc-common-1.cfg
> +++ b/source-builder/config/gcc-common-1.cfg
> @@ -34,7 +34,7 @@ URL:     http://gcc.gnu.org/
>  # Default LTO to off.
>  #
>  %ifn %{defined with_lto}
> - %define with_lto 0
> + %define enable_lto 1
>  %endif
>
>  #
> @@ -165,11 +165,8 @@ URL:          http://gcc.gnu.org/
>  %if %{enable_fortran}
>    languages="$languages,fortran"
>  %endif
> -%if %{enable_java}
> -  languages="$languages,java"
> -%endif
> -%if %{enable_objc}
> -  languages="$languages,objc"
> +%if %{enable_lto}
> +  languages="$languages,lto"
>  %endif
>
>    %{host_build_flags}
> @@ -193,7 +190,6 @@ URL:           http://gcc.gnu.org/
>      --disable-win32-registry \
>      --disable-werror \
>      --enable-version-specific-runtime-libs \
> -    %{?with_lto:--enable-lto}%{!?with_lto:--disable-lto} \
>      --enable-newlib-io-c99-formats \
>      %{?disable_MAKEINFO:MAKEINFO=missing} \
>      %{?with_iconv:--enable-newlib-iconv} \
> --
> 2.24.1
>
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