Re: [PATCH v2 7/7] buildsys: Remove support for 32-bit MIPS hosts

[Thomas Huth <thuth@redhat.com>]

On 09/10/2025 21.52, Philippe Mathieu-Daudé wrote:
> Stop detecting 32-bit MIPS host as supported, update the
> deprecation document. See previous commit for rationale.
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
>   docs/about/deprecated.rst       | 13 +++++--------
>   docs/about/removed-features.rst |  6 ++++++
>   configure                       |  7 -------
>   3 files changed, 11 insertions(+), 15 deletions(-)
> 
> diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst
> index 67e527740c0..79cc34cfeb6 100644
> --- a/docs/about/deprecated.rst
> +++ b/docs/about/deprecated.rst
> @@ -172,17 +172,14 @@ This argument has always been ignored.
>   Host Architectures
>   ------------------
>   
> -Big endian MIPS since 7.2; 32-bit little endian MIPS since 9.2, MIPS since 11.0
> -'''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
> +MIPS (since 11.0)
> +'''''''''''''''''
>   
> -As Debian 10 ("Buster") moved into LTS the big endian 32 bit version of
> -MIPS moved out of support making it hard to maintain our
> -cross-compilation CI tests of the architecture. As we no longer have
> -CI coverage support may bitrot away before the deprecation process
> +MIPS is not supported by Debian 13 ("Trixie") and newer, making it hard to
> +maintain our cross-compilation CI tests of the architecture. As we no longer
> +have CI coverage support may bitrot away before the deprecation process
>   completes.
>   
> -Likewise, MIPS is not supported by Debian 13 ("Trixie") and newer.
> -
>   System emulation on 32-bit x86 hosts (since 8.0)
>   ''''''''''''''''''''''''''''''''''''''''''''''''
>   
> diff --git a/docs/about/removed-features.rst b/docs/about/removed-features.rst
> index a5338e44c24..53829f59e65 100644
> --- a/docs/about/removed-features.rst
> +++ b/docs/about/removed-features.rst
> @@ -896,6 +896,12 @@ work around the atomicity issues in system mode by running all vCPUs
>   in a single thread context; in user mode atomicity was simply broken.
>   From 10.0, QEMU has disabled configuration of 64-bit guests on 32-bit hosts.
>   
> +32-bit MIPS (since 11.0)
> +''''''''''''''''''''''''
> +
> +Debian 12 "Bookworm" removed support for 32-bit MIPS, making it hard to
> +maintain our cross-compilation CI tests of the architecture.
> +
>   Guest Emulator ISAs
>   -------------------
>   
> diff --git a/configure b/configure
> index 6a633ac2b16..8236f43e8f9 100755
> --- a/configure
> +++ b/configure
> @@ -404,8 +404,6 @@ elif check_define _ARCH_PPC ; then
>   elif check_define __mips__ ; then
>     if check_define __mips64 ; then
>       cpu="mips64"
> -  else
> -    cpu="mips"
>     fi
>   elif check_define __s390__ ; then
>     if check_define __s390x__ ; then
> @@ -473,11 +471,6 @@ case "$cpu" in
>       host_arch=mips
>       linux_arch=mips
>       ;;
> -  mips*)
> -    cpu=mips
> -    host_arch=mips
> -    linux_arch=mips
> -    ;;
>   
>     ppc)
>       host_arch=ppc

Reviewed-by: Thomas Huth <thuth@redhat.com>