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From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Mon, 05 Dec 2016 20:01:00 -0000
Message-ID: <CAMe9rOoZMyS2wgV9wxGAj-KzWA9UAJHV5VDN+2oen9YQhfTJUQ@mail.gmail.com>
Subject: Re: [PATCH] Install libm.a as linker script [BZ #20539]
To: Andrew Senkevich <andrew.n.senkevich@gmail.com>
Cc: libc-alpha <libc-alpha@sourceware.org>
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On Mon, Dec 5, 2016 at 11:39 AM, Andrew Senkevich
<andrew.n.senkevich@gmail.com> wrote:
> 2016-10-25 1:02 GMT+03:00 H.J. Lu <hjl.tools@gmail.com>:
> . . .
>>
>> Do you need to update rules for building static math tests with
>> libmvec.a?
>
> Currently where are no static tests linked with libmvec.
> Should we add such tests?

It is probably OK without it for now.

> Current patch is:
>
> diff --git a/Makerules b/Makerules
> index e865782..a670f81 100644
> --- a/Makerules
> +++ b/Makerules
> @@ -1190,7 +1190,10 @@ $(addprefix $(inst_sbindir)/,$(install-sbin)): \
>   $(do-install-program)
>  endif
>  ifdef install-lib
> -install-lib.a := $(filter lib%.a,$(install-lib))
> +ifeq ($(build-mathvec),yes)
> +install-lib.a := $(filter-out libm.a,$(filter lib%.a,$(install-lib)))
> +install-lib.a := $(filter-out $(install-lib-ldscripts),$(install-lib.a))
> +endif

Will just

++ b/Makerules
@@ -1191,6 +1191,7 @@ $(addprefix $(inst_sbindir)/,$(install-sbin)): \
 endif
 ifdef install-lib
 install-lib.a := $(filter lib%.a,$(install-lib))
+install-lib.a := $(filter-out $(install-lib-ldscripts),$(install-lib.a))
 install-lib-non.a := $(filter-out lib%.a,$(install-lib))
 ifdef install-lib-non.a
 $(addprefix $(inst_libdir)/$(libprefix),$(install-lib-non.a)): \

work?

>  install-lib-non.a := $(filter-out lib%.a,$(install-lib))
>  ifdef install-lib-non.a
>  $(addprefix $(inst_libdir)/$(libprefix),$(install-lib-non.a)): \
> diff --git a/math/Makefile b/math/Makefile
> index 848b093..77031b1 100644
> --- a/math/Makefile
> +++ b/math/Makefile
> @@ -128,10 +128,10 @@ generated += $(foreach s,.c .S,$(call
> type-foreach, $(calls:s_%=m_%$(s))))
>  routines = $(call type-foreach, $(calls))
>
>  ifeq ($(build-mathvec),yes)
> -# We need to install libm.so as linker script
> -# for more comfortable use of vector math library.
> -install-lib-ldscripts := libm.so
> -install_subdir: $(inst_libdir)/libm.so
> +# We need to install libm.so and libm.a as linker scripts
> +# for transparent use of vector math library.
> +install-lib-ldscripts := libm.so libm.a
> +install-others: $(inst_libdir)/libm.so $(inst_libdir)/libm.a
>  $(inst_libdir)/libm.so: $(common-objpfx)format.lds \
>   $(libm) \
>   $(libmvec) \
> @@ -142,6 +142,18 @@ $(inst_libdir)/libm.so: $(common-objpfx)format.lds \
>        'AS_NEEDED ( $(libdir)/libmvec_nonshared.a
> $(slibdir)/libmvec.so$(libmvec.so-version) ) )' \
>   ) > $@.new
>   mv -f $@.new $@
> +
> +install-others = $(inst_libdir)/libm.a
> +$(inst_libdir)/libm.a: $(common-objpfx)format.lds \
> +       $(libm) \
> +       $(libmvec) \
> +       $(+force)
> + (echo '/* GNU ld script'; echo '*/';\
> + cat $<; \
> + echo 'GROUP ( $(libdir)/libm-$(lib-version).a $(libdir)/libmvec.a )' \
> + ) > $@.new
> + cp $(objpfx)libm.a $(inst_libdir)/libm-$(lib-version).a
> + mv -f $@.new $@
>  endif
>
>  # Rules for the test suite.
>
>
> --
> WBR,
> Andrew



-- 
H.J.