[v7,11/13] ARC: Build Infrastructure

Message ID 20200615201441.31820-12-vgupta@synopsys.com
State Superseded
Headers show
Series
  • glibc port to ARC processors
Related show

Commit Message

Adhemerval Zanella via Libc-alpha June 15, 2020, 8:14 p.m.
---
 config.h.in                                |   3 +
 sysdeps/arc/Implies                        |   3 +
 sysdeps/arc/Makefile                       |  21 +++
 sysdeps/arc/Versions                       |   8 +
 sysdeps/arc/configure                      | 182 +++++++++++++++++++++
 sysdeps/arc/configure.ac                   |  26 +++
 sysdeps/arc/nptl/Makefile                  |  22 +++
 sysdeps/arc/preconfigure                   |  14 ++
 sysdeps/unix/sysv/linux/arc/Implies        |   3 +
 sysdeps/unix/sysv/linux/arc/Makefile       |  29 ++++
 sysdeps/unix/sysv/linux/arc/Versions       |  16 ++
 sysdeps/unix/sysv/linux/arc/configure      |   4 +
 sysdeps/unix/sysv/linux/arc/configure.ac   |   4 +
 sysdeps/unix/sysv/linux/arc/ldconfig.h     |  27 +++
 sysdeps/unix/sysv/linux/arc/shlib-versions |   7 +
 15 files changed, 369 insertions(+)
 create mode 100644 sysdeps/arc/Implies
 create mode 100644 sysdeps/arc/Makefile
 create mode 100644 sysdeps/arc/Versions
 create mode 100644 sysdeps/arc/configure
 create mode 100644 sysdeps/arc/configure.ac
 create mode 100644 sysdeps/arc/nptl/Makefile
 create mode 100644 sysdeps/arc/preconfigure
 create mode 100644 sysdeps/unix/sysv/linux/arc/Implies
 create mode 100644 sysdeps/unix/sysv/linux/arc/Makefile
 create mode 100644 sysdeps/unix/sysv/linux/arc/Versions
 create mode 100644 sysdeps/unix/sysv/linux/arc/configure
 create mode 100644 sysdeps/unix/sysv/linux/arc/configure.ac
 create mode 100644 sysdeps/unix/sysv/linux/arc/ldconfig.h
 create mode 100644 sysdeps/unix/sysv/linux/arc/shlib-versions

-- 
2.20.1

Comments

Adhemerval Zanella via Libc-alpha July 3, 2020, 5:09 p.m. | #1
On 15/06/2020 17:14, Vineet Gupta via Libc-alpha wrote:
> ---

>  config.h.in                                |   3 +

>  sysdeps/arc/Implies                        |   3 +

>  sysdeps/arc/Makefile                       |  21 +++

>  sysdeps/arc/Versions                       |   8 +

>  sysdeps/arc/configure                      | 182 +++++++++++++++++++++

>  sysdeps/arc/configure.ac                   |  26 +++

>  sysdeps/arc/nptl/Makefile                  |  22 +++

>  sysdeps/arc/preconfigure                   |  14 ++

>  sysdeps/unix/sysv/linux/arc/Implies        |   3 +

>  sysdeps/unix/sysv/linux/arc/Makefile       |  29 ++++

>  sysdeps/unix/sysv/linux/arc/Versions       |  16 ++

>  sysdeps/unix/sysv/linux/arc/configure      |   4 +

>  sysdeps/unix/sysv/linux/arc/configure.ac   |   4 +

>  sysdeps/unix/sysv/linux/arc/ldconfig.h     |  27 +++

>  sysdeps/unix/sysv/linux/arc/shlib-versions |   7 +


LGTM, thanks.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>



>  15 files changed, 369 insertions(+)

>  create mode 100644 sysdeps/arc/Implies

>  create mode 100644 sysdeps/arc/Makefile

>  create mode 100644 sysdeps/arc/Versions

>  create mode 100644 sysdeps/arc/configure

>  create mode 100644 sysdeps/arc/configure.ac

>  create mode 100644 sysdeps/arc/nptl/Makefile

>  create mode 100644 sysdeps/arc/preconfigure

>  create mode 100644 sysdeps/unix/sysv/linux/arc/Implies

>  create mode 100644 sysdeps/unix/sysv/linux/arc/Makefile

>  create mode 100644 sysdeps/unix/sysv/linux/arc/Versions

>  create mode 100644 sysdeps/unix/sysv/linux/arc/configure

>  create mode 100644 sysdeps/unix/sysv/linux/arc/configure.ac

>  create mode 100644 sysdeps/unix/sysv/linux/arc/ldconfig.h

>  create mode 100644 sysdeps/unix/sysv/linux/arc/shlib-versions

> 

> diff --git a/config.h.in b/config.h.in

> index 831eca2fe14e..2ed684b7d4e4 100644

> --- a/config.h.in

> +++ b/config.h.in

> @@ -109,6 +109,9 @@

>  /* AArch64 big endian ABI */

>  #undef HAVE_AARCH64_BE

>  

> +/* ARC big endian ABI */

> +#undef HAVE_ARC_BE

> +

>  /* C-SKY ABI version.  */

>  #undef CSKYABI

>  


Ok.

> diff --git a/sysdeps/arc/Implies b/sysdeps/arc/Implies

> new file mode 100644

> index 000000000000..780c4e246769

> --- /dev/null

> +++ b/sysdeps/arc/Implies

> @@ -0,0 +1,3 @@

> +wordsize-32

> +ieee754/flt-32

> +ieee754/dbl-64


Ok.

> diff --git a/sysdeps/arc/Makefile b/sysdeps/arc/Makefile

> new file mode 100644

> index 000000000000..d5a702e29e58

> --- /dev/null

> +++ b/sysdeps/arc/Makefile

> @@ -0,0 +1,21 @@

> +# ARC Makefile

> +# Copyright (C) 2020 Free Software Foundation, Inc.

> +# This file is part of the GNU C Library.

> +

> +# The GNU C Library is free software; you can redistribute it and/or

> +# modify it under the terms of the GNU Lesser General Public

> +# License as published by the Free Software Foundation; either

> +# version 2.1 of the License, or (at your option) any later version.

> +

> +# The GNU C Library is distributed in the hope that it will be useful,

> +# but WITHOUT ANY WARRANTY; without even the implied warranty of

> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

> +# Lesser General Public License for more details.

> +

> +# You should have received a copy of the GNU Lesser General Public

> +# License along with the GNU C Library.  If not, see

> +# <https://www.gnu.org/licenses/>.

> +

> +# We don't support long doubles as a distinct type.  We don't need to set

> +# this variable; it's here mostly for documentational purposes.

> +long-double-fcts = no


Ok.

> diff --git a/sysdeps/arc/Versions b/sysdeps/arc/Versions

> new file mode 100644

> index 000000000000..6ac7b8e49505

> --- /dev/null

> +++ b/sysdeps/arc/Versions

> @@ -0,0 +1,8 @@

> +libc {

> +  GLIBC_2.32 {

> +    __mcount;

> +  }

> +  GLIBC_PRIVATE {

> +    __syscall_error;

> +  }

> +}


Ok.

> diff --git a/sysdeps/arc/configure b/sysdeps/arc/configure

> new file mode 100644

> index 000000000000..bce7d3c3773d

> --- /dev/null

> +++ b/sysdeps/arc/configure

> @@ -0,0 +1,182 @@

> +# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!

> + # Local configure fragment for sysdeps/arc.

> +

> +$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h

> +

> +libc_cv_have_sdata_section=no

> +

> +# For ARC, historically ; was used for comments and not newline

> +# Later # also got added to comment list, but ; couldn't be switched to

> +# canonical newline as there's lots of code out there which will break

> +libc_cv_asm_line_sep='`'

> +cat >>confdefs.h <<_ACEOF

> +#define ASM_LINE_SEP $libc_cv_asm_line_sep

> +_ACEOF

> +

> +

> +# For big endian ABI, generate a symbol for selecting right dynamic linker

> +

> +

> +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5

> +$as_echo_n "checking for grep that handles long lines and -e... " >&6; }

> +if ${ac_cv_path_GREP+:} false; then :

> +  $as_echo_n "(cached) " >&6

> +else

> +  if test -z "$GREP"; then

> +  ac_path_GREP_found=false

> +  # Loop through the user's path and test for each of PROGNAME-LIST

> +  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR

> +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin

> +do

> +  IFS=$as_save_IFS

> +  test -z "$as_dir" && as_dir=.

> +    for ac_prog in grep ggrep; do

> +    for ac_exec_ext in '' $ac_executable_extensions; do

> +      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"

> +      as_fn_executable_p "$ac_path_GREP" || continue

> +# Check for GNU ac_path_GREP and select it if it is found.

> +  # Check for GNU $ac_path_GREP

> +case `"$ac_path_GREP" --version 2>&1` in

> +*GNU*)

> +  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;

> +*)

> +  ac_count=0

> +  $as_echo_n 0123456789 >"conftest.in"

> +  while :

> +  do

> +    cat "conftest.in" "conftest.in" >"conftest.tmp"

> +    mv "conftest.tmp" "conftest.in"

> +    cp "conftest.in" "conftest.nl"

> +    $as_echo 'GREP' >> "conftest.nl"

> +    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break

> +    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break

> +    as_fn_arith $ac_count + 1 && ac_count=$as_val

> +    if test $ac_count -gt ${ac_path_GREP_max-0}; then

> +      # Best one so far, save it but keep looking for a better one

> +      ac_cv_path_GREP="$ac_path_GREP"

> +      ac_path_GREP_max=$ac_count

> +    fi

> +    # 10*(2^10) chars as input seems more than enough

> +    test $ac_count -gt 10 && break

> +  done

> +  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;

> +esac

> +

> +      $ac_path_GREP_found && break 3

> +    done

> +  done

> +  done

> +IFS=$as_save_IFS

> +  if test -z "$ac_cv_path_GREP"; then

> +    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5

> +  fi

> +else

> +  ac_cv_path_GREP=$GREP

> +fi

> +

> +fi

> +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5

> +$as_echo "$ac_cv_path_GREP" >&6; }

> + GREP="$ac_cv_path_GREP"

> +

> +

> +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5

> +$as_echo_n "checking for egrep... " >&6; }

> +if ${ac_cv_path_EGREP+:} false; then :

> +  $as_echo_n "(cached) " >&6

> +else

> +  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1

> +   then ac_cv_path_EGREP="$GREP -E"

> +   else

> +     if test -z "$EGREP"; then

> +  ac_path_EGREP_found=false

> +  # Loop through the user's path and test for each of PROGNAME-LIST

> +  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR

> +for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin

> +do

> +  IFS=$as_save_IFS

> +  test -z "$as_dir" && as_dir=.

> +    for ac_prog in egrep; do

> +    for ac_exec_ext in '' $ac_executable_extensions; do

> +      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"

> +      as_fn_executable_p "$ac_path_EGREP" || continue

> +# Check for GNU ac_path_EGREP and select it if it is found.

> +  # Check for GNU $ac_path_EGREP

> +case `"$ac_path_EGREP" --version 2>&1` in

> +*GNU*)

> +  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;

> +*)

> +  ac_count=0

> +  $as_echo_n 0123456789 >"conftest.in"

> +  while :

> +  do

> +    cat "conftest.in" "conftest.in" >"conftest.tmp"

> +    mv "conftest.tmp" "conftest.in"

> +    cp "conftest.in" "conftest.nl"

> +    $as_echo 'EGREP' >> "conftest.nl"

> +    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break

> +    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break

> +    as_fn_arith $ac_count + 1 && ac_count=$as_val

> +    if test $ac_count -gt ${ac_path_EGREP_max-0}; then

> +      # Best one so far, save it but keep looking for a better one

> +      ac_cv_path_EGREP="$ac_path_EGREP"

> +      ac_path_EGREP_max=$ac_count

> +    fi

> +    # 10*(2^10) chars as input seems more than enough

> +    test $ac_count -gt 10 && break

> +  done

> +  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;

> +esac

> +

> +      $ac_path_EGREP_found && break 3

> +    done

> +  done

> +  done

> +IFS=$as_save_IFS

> +  if test -z "$ac_cv_path_EGREP"; then

> +    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5

> +  fi

> +else

> +  ac_cv_path_EGREP=$EGREP

> +fi

> +

> +   fi

> +fi

> +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5

> +$as_echo "$ac_cv_path_EGREP" >&6; }

> + EGREP="$ac_cv_path_EGREP"

> +

> +

> +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for big endian" >&5

> +$as_echo_n "checking for big endian... " >&6; }

> +if ${libc_cv_arc_be+:} false; then :

> +  $as_echo_n "(cached) " >&6

> +else

> +  cat confdefs.h - <<_ACEOF >conftest.$ac_ext

> +/* end confdefs.h.  */

> +#ifdef __BIG_ENDIAN__

> +                      yes

> +                     #endif

> +

> +_ACEOF

> +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |

> +  $EGREP "yes" >/dev/null 2>&1; then :

> +  libc_cv_arc_be=yes

> +else

> +  libc_cv_arc_be=no

> +fi

> +rm -f conftest*

> +

> +fi

> +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_arc_be" >&5

> +$as_echo "$libc_cv_arc_be" >&6; }

> +if test $libc_cv_arc_be = yes; then

> +  # For shlib-versions.

> +  $as_echo "#define HAVE_ARC_BE 1" >>confdefs.h

> +

> +  config_vars="$config_vars

> +default-abi = arcbe"

> +else

> +  config_vars="$config_vars

> +default-abi = arcle"

> +fi


Ok.

> diff --git a/sysdeps/arc/configure.ac b/sysdeps/arc/configure.ac

> new file mode 100644

> index 000000000000..cb490e47b356

> --- /dev/null

> +++ b/sysdeps/arc/configure.ac

> @@ -0,0 +1,26 @@

> +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.

> +# Local configure fragment for sysdeps/arc.

> +

> +AC_DEFINE(PI_STATIC_AND_HIDDEN)

> +libc_cv_have_sdata_section=no

> +

> +# For ARC, historically ; was used for comments and not newline

> +# Later # also got added to comment list, but ; couldn't be switched to

> +# canonical newline as there's lots of code out there which will break

> +libc_cv_asm_line_sep='`'

> +AC_DEFINE_UNQUOTED(ASM_LINE_SEP, $libc_cv_asm_line_sep)

> +

> +# For big endian ABI, generate a symbol for selecting right dynamic linker

> +AC_CACHE_CHECK([for big endian],

> +  [libc_cv_arc_be],

> +  [AC_EGREP_CPP(yes,[#ifdef __BIG_ENDIAN__

> +                      yes

> +                     #endif

> +  ], libc_cv_arc_be=yes, libc_cv_arc_be=no)])

> +if test $libc_cv_arc_be = yes; then

> +  # For shlib-versions.

> +  AC_DEFINE(HAVE_ARC_BE)

> +  LIBC_CONFIG_VAR([default-abi], [arcbe])

> +else

> +  LIBC_CONFIG_VAR([default-abi], [arcle])

> +fi


Ok.

> diff --git a/sysdeps/arc/nptl/Makefile b/sysdeps/arc/nptl/Makefile

> new file mode 100644

> index 000000000000..42be62451749

> --- /dev/null

> +++ b/sysdeps/arc/nptl/Makefile

> @@ -0,0 +1,22 @@

> +# NPTL makefile fragment for ARC.

> +# Copyright (C) 2020 Free Software Foundation, Inc.

> +#

> +# This file is part of the GNU C Library.

> +#

> +# The GNU C Library is free software; you can redistribute it and/or

> +# modify it under the terms of the GNU Lesser General Public

> +# License as published by the Free Software Foundation; either

> +# version 2.1 of the License, or (at your option) any later version.

> +#

> +# The GNU C Library is distributed in the hope that it will be useful,

> +# but WITHOUT ANY WARRANTY; without even the implied warranty of

> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

> +# Lesser General Public License for more details.

> +#

> +# You should have received a copy of the GNU Lesser General Public

> +# License along with the GNU C Library.  If not, see

> +# <https://www.gnu.org/licenses/>.

> +

> +ifeq ($(subdir),csu)

> +gen-as-const-headers += tcb-offsets.sym

> +endif


Ok.

> diff --git a/sysdeps/arc/preconfigure b/sysdeps/arc/preconfigure

> new file mode 100644

> index 000000000000..a79db0239ae6

> --- /dev/null

> +++ b/sysdeps/arc/preconfigure

> @@ -0,0 +1,14 @@

> +case "$machine" in

> +arc*)

> +  base_machine=arc

> +  machine=arc

> +

> +  gccfloat=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | grep __ARC_FPU_| wc -l`

> +  if test "$gccfloat" != "0"; then

> +    with_fp_cond=1

> +  else

> +    with_fp_cond=0

> +  fi

> +  ;;

> +

> +esac


Ok.

> diff --git a/sysdeps/unix/sysv/linux/arc/Implies b/sysdeps/unix/sysv/linux/arc/Implies

> new file mode 100644

> index 000000000000..7f739a0340b6

> --- /dev/null

> +++ b/sysdeps/unix/sysv/linux/arc/Implies

> @@ -0,0 +1,3 @@

> +arc/nptl

> +unix/sysv/linux/generic/wordsize-32

> +unix/sysv/linux/generic

> diff --git a/sysdeps/unix/sysv/linux/arc/Makefile b/sysdeps/unix/sysv/linux/arc/Makefile

> new file mode 100644

> index 000000000000..25d7bbecac07

> --- /dev/null

> +++ b/sysdeps/unix/sysv/linux/arc/Makefile

> @@ -0,0 +1,29 @@

> +ifeq ($(subdir),stdlib)

> +gen-as-const-headers += ucontext_i.sym

> +endif

> +

> +ifeq ($(subdir),signal)

> +sysdep_routines += sigrestorer

> +endif

> +

> +ifeq ($(subdir),misc)

> +# MIPS/Tile-style cacheflush routine

> +sysdep_headers += sys/cachectl.h

> +sysdep_routines += cacheflush

> +endif

> +

> +ifeq ($(subdir),elf)

> +ifeq ($(build-shared),yes)

> +# This is needed for DSO loading from static binaries.

> +sysdep-dl-routines += dl-static

> +endif

> +endif

> +

> +abi-variants := arcle arcbe

> +

> +ifeq (,$(filter $(default-abi),$(abi-variants)))

> +$(error Unknown ABI $(default-abi), must be one of $(abi-variants))

> +endif

> +

> +abi-arcle-condition := !defined __BIG_ENDIAN__

> +abi-arcbe-condition := defined __BIG_ENDIAN__


Ok.

> diff --git a/sysdeps/unix/sysv/linux/arc/Versions b/sysdeps/unix/sysv/linux/arc/Versions

> new file mode 100644

> index 000000000000..292f1974b02a

> --- /dev/null

> +++ b/sysdeps/unix/sysv/linux/arc/Versions

> @@ -0,0 +1,16 @@

> +ld {

> +  GLIBC_PRIVATE {

> +    # used for loading by static libraries

> +    _dl_var_init;

> +  }

> +}

> +libc {

> +  GLIBC_2.32 {

> +    _flush_cache;

> +    cacheflush;

> +  }

> +  GLIBC_PRIVATE {

> +    # A copy of sigaction lives in libpthread, and needs these.

> +    __default_rt_sa_restorer;

> +  }

> +}


Ok.

> diff --git a/sysdeps/unix/sysv/linux/arc/configure b/sysdeps/unix/sysv/linux/arc/configure

> new file mode 100644

> index 000000000000..56ec14357507

> --- /dev/null

> +++ b/sysdeps/unix/sysv/linux/arc/configure

> @@ -0,0 +1,4 @@

> +# This file is generated from configure.in by Autoconf.  DO NOT EDIT!

> + # Local configure fragment for sysdeps/unix/sysv/linux/arc.

> +

> +arch_minimum_kernel=5.1.0


Ok.

> diff --git a/sysdeps/unix/sysv/linux/arc/configure.ac b/sysdeps/unix/sysv/linux/arc/configure.ac

> new file mode 100644

> index 000000000000..8af5a12cc248

> --- /dev/null

> +++ b/sysdeps/unix/sysv/linux/arc/configure.ac

> @@ -0,0 +1,4 @@

> +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.

> +# Local configure fragment for sysdeps/unix/sysv/linux/arc.

> +

> +arch_minimum_kernel=5.1.0


Ok.

> diff --git a/sysdeps/unix/sysv/linux/arc/ldconfig.h b/sysdeps/unix/sysv/linux/arc/ldconfig.h

> new file mode 100644

> index 000000000000..0d6368e4df02

> --- /dev/null

> +++ b/sysdeps/unix/sysv/linux/arc/ldconfig.h

> @@ -0,0 +1,27 @@

> +/* ldconfig default paths and libraries.  Linux/RISC-V version.

> +   Copyright (C) 2020 Free Software Foundation, Inc.

> +   This file is part of the GNU C Library.

> +

> +   The GNU C Library is free software; you can redistribute it and/or

> +   modify it under the terms of the GNU Lesser General Public

> +   License as published by the Free Software Foundation; either

> +   version 2.1 of the License, or (at your option) any later version.

> +

> +   The GNU C Library is distributed in the hope that it will be useful,

> +   but WITHOUT ANY WARRANTY; without even the implied warranty of

> +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

> +   Lesser General Public License for more details.

> +

> +   You should have received a copy of the GNU Lesser General Public

> +   License along with the GNU C Library.  If not, see

> +   <https://www.gnu.org/licenses/>.  */

> +

> +#include <sysdeps/generic/ldconfig.h>

> +

> +#define SYSDEP_KNOWN_INTERPRETER_NAMES 		\

> +  { "/lib/ld-linux-arc.so.2", FLAG_ELF_LIBC6 },	\

> +  { "/lib/ld-linux-arceb.so.2", FLAG_ELF_LIBC6 },

> +

> +#define SYSDEP_KNOWN_LIBRARY_NAMES 	\

> +  { "libc.so.6", FLAG_ELF_LIBC6 },	\

> +  { "libm.so.6", FLAG_ELF_LIBC6 },


Ok.

> diff --git a/sysdeps/unix/sysv/linux/arc/shlib-versions b/sysdeps/unix/sysv/linux/arc/shlib-versions

> new file mode 100644

> index 000000000000..343c0a04500e

> --- /dev/null

> +++ b/sysdeps/unix/sysv/linux/arc/shlib-versions

> @@ -0,0 +1,7 @@

> +DEFAULT                 GLIBC_2.32

> +

> +%ifdef HAVE_ARC_BE

> +ld=ld-linux-arceb.so.2

> +%else

> +ld=ld-linux-arc.so.2

> +%endif

> 

Ok.

Patch

diff --git a/config.h.in b/config.h.in
index 831eca2fe14e..2ed684b7d4e4 100644
--- a/config.h.in
+++ b/config.h.in
@@ -109,6 +109,9 @@ 
 /* AArch64 big endian ABI */
 #undef HAVE_AARCH64_BE
 
+/* ARC big endian ABI */
+#undef HAVE_ARC_BE
+
 /* C-SKY ABI version.  */
 #undef CSKYABI
 
diff --git a/sysdeps/arc/Implies b/sysdeps/arc/Implies
new file mode 100644
index 000000000000..780c4e246769
--- /dev/null
+++ b/sysdeps/arc/Implies
@@ -0,0 +1,3 @@ 
+wordsize-32
+ieee754/flt-32
+ieee754/dbl-64
diff --git a/sysdeps/arc/Makefile b/sysdeps/arc/Makefile
new file mode 100644
index 000000000000..d5a702e29e58
--- /dev/null
+++ b/sysdeps/arc/Makefile
@@ -0,0 +1,21 @@ 
+# ARC Makefile
+# Copyright (C) 2020 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library.  If not, see
+# <https://www.gnu.org/licenses/>.
+
+# We don't support long doubles as a distinct type.  We don't need to set
+# this variable; it's here mostly for documentational purposes.
+long-double-fcts = no
diff --git a/sysdeps/arc/Versions b/sysdeps/arc/Versions
new file mode 100644
index 000000000000..6ac7b8e49505
--- /dev/null
+++ b/sysdeps/arc/Versions
@@ -0,0 +1,8 @@ 
+libc {
+  GLIBC_2.32 {
+    __mcount;
+  }
+  GLIBC_PRIVATE {
+    __syscall_error;
+  }
+}
diff --git a/sysdeps/arc/configure b/sysdeps/arc/configure
new file mode 100644
index 000000000000..bce7d3c3773d
--- /dev/null
+++ b/sysdeps/arc/configure
@@ -0,0 +1,182 @@ 
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
+ # Local configure fragment for sysdeps/arc.
+
+$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
+
+libc_cv_have_sdata_section=no
+
+# For ARC, historically ; was used for comments and not newline
+# Later # also got added to comment list, but ; couldn't be switched to
+# canonical newline as there's lots of code out there which will break
+libc_cv_asm_line_sep='`'
+cat >>confdefs.h <<_ACEOF
+#define ASM_LINE_SEP $libc_cv_asm_line_sep
+_ACEOF
+
+
+# For big endian ABI, generate a symbol for selecting right dynamic linker
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
+if ${ac_cv_path_GREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$GREP"; then
+  ac_path_GREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in grep ggrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_GREP" || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+  # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'GREP' >> "conftest.nl"
+    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_GREP="$ac_path_GREP"
+      ac_path_GREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_GREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_GREP"; then
+    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_GREP=$GREP
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+$as_echo "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+$as_echo_n "checking for egrep... " >&6; }
+if ${ac_cv_path_EGREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+   then ac_cv_path_EGREP="$GREP -E"
+   else
+     if test -z "$EGREP"; then
+  ac_path_EGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in egrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP" || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+  # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'EGREP' >> "conftest.nl"
+    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP="$ac_path_EGREP"
+      ac_path_EGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_EGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_EGREP"; then
+    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_EGREP=$EGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+$as_echo "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for big endian" >&5
+$as_echo_n "checking for big endian... " >&6; }
+if ${libc_cv_arc_be+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __BIG_ENDIAN__
+                      yes
+                     #endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "yes" >/dev/null 2>&1; then :
+  libc_cv_arc_be=yes
+else
+  libc_cv_arc_be=no
+fi
+rm -f conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_arc_be" >&5
+$as_echo "$libc_cv_arc_be" >&6; }
+if test $libc_cv_arc_be = yes; then
+  # For shlib-versions.
+  $as_echo "#define HAVE_ARC_BE 1" >>confdefs.h
+
+  config_vars="$config_vars
+default-abi = arcbe"
+else
+  config_vars="$config_vars
+default-abi = arcle"
+fi
diff --git a/sysdeps/arc/configure.ac b/sysdeps/arc/configure.ac
new file mode 100644
index 000000000000..cb490e47b356
--- /dev/null
+++ b/sysdeps/arc/configure.ac
@@ -0,0 +1,26 @@ 
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/arc.
+
+AC_DEFINE(PI_STATIC_AND_HIDDEN)
+libc_cv_have_sdata_section=no
+
+# For ARC, historically ; was used for comments and not newline
+# Later # also got added to comment list, but ; couldn't be switched to
+# canonical newline as there's lots of code out there which will break
+libc_cv_asm_line_sep='`'
+AC_DEFINE_UNQUOTED(ASM_LINE_SEP, $libc_cv_asm_line_sep)
+
+# For big endian ABI, generate a symbol for selecting right dynamic linker
+AC_CACHE_CHECK([for big endian],
+  [libc_cv_arc_be],
+  [AC_EGREP_CPP(yes,[#ifdef __BIG_ENDIAN__
+                      yes
+                     #endif
+  ], libc_cv_arc_be=yes, libc_cv_arc_be=no)])
+if test $libc_cv_arc_be = yes; then
+  # For shlib-versions.
+  AC_DEFINE(HAVE_ARC_BE)
+  LIBC_CONFIG_VAR([default-abi], [arcbe])
+else
+  LIBC_CONFIG_VAR([default-abi], [arcle])
+fi
diff --git a/sysdeps/arc/nptl/Makefile b/sysdeps/arc/nptl/Makefile
new file mode 100644
index 000000000000..42be62451749
--- /dev/null
+++ b/sysdeps/arc/nptl/Makefile
@@ -0,0 +1,22 @@ 
+# NPTL makefile fragment for ARC.
+# Copyright (C) 2020 Free Software Foundation, Inc.
+#
+# This file is part of the GNU C Library.
+#
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library.  If not, see
+# <https://www.gnu.org/licenses/>.
+
+ifeq ($(subdir),csu)
+gen-as-const-headers += tcb-offsets.sym
+endif
diff --git a/sysdeps/arc/preconfigure b/sysdeps/arc/preconfigure
new file mode 100644
index 000000000000..a79db0239ae6
--- /dev/null
+++ b/sysdeps/arc/preconfigure
@@ -0,0 +1,14 @@ 
+case "$machine" in
+arc*)
+  base_machine=arc
+  machine=arc
+
+  gccfloat=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | grep __ARC_FPU_| wc -l`
+  if test "$gccfloat" != "0"; then
+    with_fp_cond=1
+  else
+    with_fp_cond=0
+  fi
+  ;;
+
+esac
diff --git a/sysdeps/unix/sysv/linux/arc/Implies b/sysdeps/unix/sysv/linux/arc/Implies
new file mode 100644
index 000000000000..7f739a0340b6
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/Implies
@@ -0,0 +1,3 @@ 
+arc/nptl
+unix/sysv/linux/generic/wordsize-32
+unix/sysv/linux/generic
diff --git a/sysdeps/unix/sysv/linux/arc/Makefile b/sysdeps/unix/sysv/linux/arc/Makefile
new file mode 100644
index 000000000000..25d7bbecac07
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/Makefile
@@ -0,0 +1,29 @@ 
+ifeq ($(subdir),stdlib)
+gen-as-const-headers += ucontext_i.sym
+endif
+
+ifeq ($(subdir),signal)
+sysdep_routines += sigrestorer
+endif
+
+ifeq ($(subdir),misc)
+# MIPS/Tile-style cacheflush routine
+sysdep_headers += sys/cachectl.h
+sysdep_routines += cacheflush
+endif
+
+ifeq ($(subdir),elf)
+ifeq ($(build-shared),yes)
+# This is needed for DSO loading from static binaries.
+sysdep-dl-routines += dl-static
+endif
+endif
+
+abi-variants := arcle arcbe
+
+ifeq (,$(filter $(default-abi),$(abi-variants)))
+$(error Unknown ABI $(default-abi), must be one of $(abi-variants))
+endif
+
+abi-arcle-condition := !defined __BIG_ENDIAN__
+abi-arcbe-condition := defined __BIG_ENDIAN__
diff --git a/sysdeps/unix/sysv/linux/arc/Versions b/sysdeps/unix/sysv/linux/arc/Versions
new file mode 100644
index 000000000000..292f1974b02a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/Versions
@@ -0,0 +1,16 @@ 
+ld {
+  GLIBC_PRIVATE {
+    # used for loading by static libraries
+    _dl_var_init;
+  }
+}
+libc {
+  GLIBC_2.32 {
+    _flush_cache;
+    cacheflush;
+  }
+  GLIBC_PRIVATE {
+    # A copy of sigaction lives in libpthread, and needs these.
+    __default_rt_sa_restorer;
+  }
+}
diff --git a/sysdeps/unix/sysv/linux/arc/configure b/sysdeps/unix/sysv/linux/arc/configure
new file mode 100644
index 000000000000..56ec14357507
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/configure
@@ -0,0 +1,4 @@ 
+# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+ # Local configure fragment for sysdeps/unix/sysv/linux/arc.
+
+arch_minimum_kernel=5.1.0
diff --git a/sysdeps/unix/sysv/linux/arc/configure.ac b/sysdeps/unix/sysv/linux/arc/configure.ac
new file mode 100644
index 000000000000..8af5a12cc248
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/configure.ac
@@ -0,0 +1,4 @@ 
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/unix/sysv/linux/arc.
+
+arch_minimum_kernel=5.1.0
diff --git a/sysdeps/unix/sysv/linux/arc/ldconfig.h b/sysdeps/unix/sysv/linux/arc/ldconfig.h
new file mode 100644
index 000000000000..0d6368e4df02
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/ldconfig.h
@@ -0,0 +1,27 @@ 
+/* ldconfig default paths and libraries.  Linux/RISC-V version.
+   Copyright (C) 2020 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <sysdeps/generic/ldconfig.h>
+
+#define SYSDEP_KNOWN_INTERPRETER_NAMES 		\
+  { "/lib/ld-linux-arc.so.2", FLAG_ELF_LIBC6 },	\
+  { "/lib/ld-linux-arceb.so.2", FLAG_ELF_LIBC6 },
+
+#define SYSDEP_KNOWN_LIBRARY_NAMES 	\
+  { "libc.so.6", FLAG_ELF_LIBC6 },	\
+  { "libm.so.6", FLAG_ELF_LIBC6 },
diff --git a/sysdeps/unix/sysv/linux/arc/shlib-versions b/sysdeps/unix/sysv/linux/arc/shlib-versions
new file mode 100644
index 000000000000..343c0a04500e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/shlib-versions
@@ -0,0 +1,7 @@ 
+DEFAULT                 GLIBC_2.32
+
+%ifdef HAVE_ARC_BE
+ld=ld-linux-arceb.so.2
+%else
+ld=ld-linux-arc.so.2
+%endif