> Other than the one point below,
> Reviewed-by: Juraj Linkeš <juraj.lin...@pantheon.tech>
>
> > diff --git a/config/arm/meson.build b/config/arm/meson.build
> > index 36f21d2259..d05d54b564 100644
> > --- a/config/arm/meson.build
> > +++ b/config/arm/meson.build
> <snip>
> > @@ -695,13 +698,37 @@ if update_flags
> >
> > machine_args = [] # Clear previous machine args
> >
> > - # probe supported archs and their features
> > + march_features = []
> > + if part_number_config.has_key('march_features')
> > + march_features += part_number_config['march_features']
> > + endif
> > + if soc_config.has_key('extra_march_features')
> > + march_features += soc_config['extra_march_features']
> > + endif
> > +
> > + candidate_mcpu = ''
> > candidate_march = ''
> > - if part_number_config.has_key('march')
> > +
> > + if part_number_config.has_key('mcpu') and
> > + cc.has_argument('-mcpu=' + part_number_config['mcpu'])
> > + candidate_mcpu = '-mcpu=' + part_number_config['mcpu']
> > + foreach feature: march_features
> > + if cc.has_argument('+'.join([candidate_mcpu, feature]))
> > + candidate_mcpu = '+'.join([candidate_mcpu, feature])
> > + else
> > + warning('The compiler does not support feature @0@'
> > + .format(feature))
> > + endif
> > + endforeach
> > + machine_args += candidate_mcpu
> > + elif part_number_config.has_key('march')
> > + # probe supported archs and their features
> > if part_number_config.get('force_march', false)
> > - candidate_march = part_number_config['march']
> > + if cc.has_argument('-march=' + part_number_config['march'])
> > + candidate_march = part_number_config['march']
> > + endif
>
> The check was omitted here by design because aarch32 builds with some
> compilers don't support -march=armv8-a alone, only with -mfpu= as
> well.
>
I see, I will remove the check in v6, Thanks.
> > else
> > - supported_marchs = ['armv8.6-a', 'armv8.5-a', 'armv8.4-a',
> > 'armv8.3-
> a',
> > + supported_marchs = ['armv9-a', 'armv8.6-a', 'armv8.5-a',
> > 'armv8.4-
> a', 'armv8.3-a',
> > 'armv8.2-a', 'armv8.1-a', 'armv8-a']
> > check_compiler_support = false
> > foreach supported_march: supported_marchs
> > @@ -717,32 +744,31 @@ if update_flags
> > endif
> > endforeach
> > endif
> > - if candidate_march == ''
> > - error('No suitable armv8 march version found.')
> > - endif
> > +
> > if candidate_march != part_number_config['march']
> > - warning('Configuration march version is ' +
> > - '@0@, but the compiler supports only @1@.'
> > - .format(part_number_config['march'], candidate_march))
> > + warning('Configuration march version is @0@, not supported.'
> > + .format(part_number_config['march']))
> > + if candidate_march != ''
> > + warning('Using march version @0@.'.format(candidate_march))
> > + endif
> > endif
> > - candidate_march = '-march=' + candidate_march
> >
> > - march_features = []
> > - if part_number_config.has_key('march_features')
> > - march_features += part_number_config['march_features']
> > - endif
> > - if soc_config.has_key('extra_march_features')
> > - march_features += soc_config['extra_march_features']
> > + if candidate_march != ''
> > + candidate_march = '-march=' + candidate_march
> > + foreach feature: march_features
> > + if cc.has_argument('+'.join([candidate_march, feature]))
> > + candidate_march = '+'.join([candidate_march, feature])
> > + else
> > + warning('The compiler does not support feature @0@'
> > + .format(feature))
> > + endif
> > + endforeach
> > + machine_args += candidate_march
> > endif
> > - foreach feature: march_features
> > - if cc.has_argument('+'.join([candidate_march, feature]))
> > - candidate_march = '+'.join([candidate_march, feature])
> > - else
> > - warning('The compiler does not support feature @0@'
> > - .format(feature))
> > - endif
> > - endforeach
> > - machine_args += candidate_march
> > + endif
> > +
> > + if candidate_mcpu == '' and candidate_march == ''
> > + error('No suitable ARM march/mcpu version found.')
> > endif
> >
> > # apply supported compiler options
> > --
> > 2.25.1
> >
