| Message ID | 20200423014126.10417-12-vgupta@synopsys.com |
|---|---|
| State | New |
| Headers | show |
| Series | glibc port to ARC processors | expand |
On 22/04/2020 22:41, Vineet Gupta via Libc-alpha wrote: > Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Some comments below. > --- > 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 > > diff --git a/config.h.in b/config.h.in > index dea43df438f6..08962dfed075 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 > + Why do you need this define exactly? It is not used anywhere in the code and for C code if is more straightforwar to use endian.h. > /* 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 Ok. > diff --git a/sysdeps/arc/Makefile b/sysdeps/arc/Makefile > new file mode 100644 > index 000000000000..56ac503bfe43 > --- /dev/null > +++ b/sysdeps/arc/Makefile > @@ -0,0 +1,21 @@ > +# ARC Makefile > +# Copyright (C) 1993-2020 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; > + } Hum, does ARC require a different symbol name than the one provided by gmon/Versions? > + GLIBC_PRIVATE { > + __syscall_error; > + } > +} > diff --git a/sysdeps/arc/configure b/sysdeps/arc/configure > new file mode 100644 > index 000000000000..5820017d6505 > --- /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 = ilp32_be" > +else > + config_vars="$config_vars > +default-abi = ilp32" > +fi > diff --git a/sysdeps/arc/configure.ac b/sysdeps/arc/configure.ac > new file mode 100644 > index 000000000000..d5bcd2a58cdc > --- /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 The libc_cv_have_sdata_section is done by configure.ac, why do you need to explicit set it here? > + > +# 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) > + Ok. > +# 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 $libc_cv_arc_be = yes; then > + # For shlib-versions. > + AC_DEFINE(HAVE_ARC_BE) > + LIBC_CONFIG_VAR([default-abi], [ilp32_be]) > +else > + LIBC_CONFIG_VAR([default-abi], [ilp32]) > +fi The ilp32 naming is usually set for ILP32 architectures that uses 64-bit registers type on 32 bit VMA (for instance mips64n32, x32, or aarch64_ilp32). I don't think this is the case for ARC, so I think this naming might be confusing. > diff --git a/sysdeps/arc/nptl/Makefile b/sysdeps/arc/nptl/Makefile > new file mode 100644 > index 000000000000..6f387c53905d > --- /dev/null > +++ b/sysdeps/arc/nptl/Makefile > @@ -0,0 +1,22 @@ > +# NPTL makefile fragment for ARC. > +# Copyright (C) 2005-2020 Free Software Foundation, Inc. > +# > +# This file is part of the GNU C Library. > +# > +# The GNU C Library is free software; you can redistribute it and/or > +# modify it under the terms of the GNU Lesser General Public > +# License as published by the Free Software Foundation; either > +# version 2.1 of the License, or (at your option) any later version. > +# > +# The GNU C Library is distributed in the hope that it will be useful, > +# but WITHOUT ANY WARRANTY; without even the implied warranty of > +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > +# Lesser General Public License for more details. > +# > +# You should have received a copy of the GNU Lesser General Public > +# License along with the GNU C Library. If not, see > +# <https://www.gnu.org/licenses/>. > + > +ifeq ($(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 Ok. > diff --git a/sysdeps/unix/sysv/linux/arc/Makefile b/sysdeps/unix/sysv/linux/arc/Makefile > new file mode 100644 > index 000000000000..7958625f6d5c > --- /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 ($(build-shared),yes) > +# This is needed for DSO loading from static binaries. > +sysdep-dl-routines += dl-static > +endif > +endif > + > +abi-variants := ilp32 ilp32_be > + > +ifeq (,$(filter $(default-abi),$(abi-variants))) > +$(error Unknown ABI $(default-abi), must be one of $(abi-variants)) > +endif > + > +abi-ilp32-condition := !defined __BIG_ENDIAN__ > +abi-ilp32_be-condition := defined __BIG_ENDIAN__ Ok with the 'ilp32' naming module described above. > 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; > + } > +} Afaik all other ABIs that requires the sa_restores uses a local symbol in libpthread. I don't have a strong preference here. > 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 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..4896ec005c8e > --- /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) 2001-2020 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.
On 6/3/20 12:58 PM, Adhemerval Zanella via Libc-alpha wrote: > >> >> diff --git a/config.h.in b/config.h.in >> index dea43df438f6..08962dfed075 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 >> + > > Why do you need this define exactly? It is not used anywhere in the code > and for C code if is more straightforwar to use endian.h. It is used in build system as part of "formal" BE ABI support as pointed to in v4 series review. This specific thing helps choose the right dynamic linker name for BE case. $ git grep HAVE_ARC_BE config.h.in:113:#undef HAVE_ARC_BE sysdeps/arc/configure:175: $as_echo "#define HAVE_ARC_BE 1" >>confdefs.h sysdeps/arc/configure.ac:22: AC_DEFINE(HAVE_ARC_BE) sysdeps/unix/sysv/linux/arc/shlib-versions:3:%ifdef HAVE_ARC_BE I looked at other ports and they seem to follow similar patters: csky for CSKYABI, riscv for RISCV_ABI_XLEN etc. But I can rework if there's a simpler/better way. >> +++ b/sysdeps/arc/Versions >> @@ -0,0 +1,8 @@ >> +libc { >> + GLIBC_2.32 { >> + __mcount; >> + } > > Hum, does ARC require a different symbol name than the one provided > by gmon/Versions? ARC gcc generates __mcount and _mcount with different ABIs and we use the newer __mcount. >> +AC_DEFINE(PI_STATIC_AND_HIDDEN) >> +libc_cv_have_sdata_section=no > > The libc_cv_have_sdata_section is done by configure.ac, why do you need > to explicit set it here? We inhibit small data explicitly which by default kicks in. >> +if test $libc_cv_arc_be = yes; then >> + # For shlib-versions. >> + AC_DEFINE(HAVE_ARC_BE) >> + LIBC_CONFIG_VAR([default-abi], [ilp32_be]) >> +else >> + LIBC_CONFIG_VAR([default-abi], [ilp32]) >> +fi > > The ilp32 naming is usually set for ILP32 architectures that uses > 64-bit registers type on 32 bit VMA (for instance mips64n32, x32, > or aarch64_ilp32). I don't think this is the case for ARC, so I think > this naming might be confusing. >> +abi-variants := ilp32 ilp32_be arcle arcbe ? >> + >> +ifeq (,$(filter $(default-abi),$(abi-variants))) >> +$(error Unknown ABI $(default-abi), must be one of $(abi-variants)) >> +endif >> + >> +abi-ilp32-condition := !defined __BIG_ENDIAN__ >> +abi-ilp32_be-condition := defined __BIG_ENDIAN__ > > Ok with the 'ilp32' naming module described above. >> diff --git a/sysdeps/unix/sysv/linux/arc/Versions b/sysdeps/unix/sysv/linux/arc/Versions >> new file mode 100644 >> index 000000000000..292f1974b02a >> --- /dev/null >> +++ b/sysdeps/unix/sysv/linux/arc/Versions >> @@ -0,0 +1,16 @@ >> +ld { >> + GLIBC_PRIVATE { >> + # used for loading by static libraries >> + _dl_var_init; >> + } >> +} >> +libc { >> + GLIBC_2.32 { >> + _flush_cache; >> + cacheflush; >> + } >> + GLIBC_PRIVATE { >> + # A copy of sigaction lives in libpthread, and needs these. >> + __default_rt_sa_restorer; >> + } >> +} > > Afaik all other ABIs that requires the sa_restores uses a local symbol in > libpthread. I don't have a strong preference here. Do you mean add following to sysdeps/unix/sysv/linux/arc/Makefile ifeq ($(subdir),nptl) libpthread-routines += sigrestorer libpthread-shared-only-routines += sigrestorer endif And that is to optimize the reference to restorer as a direct PC relative access vs a got reference ? It seems even in libc, this is currently not optimal. It seems we need libc_hidden_* on restorer. 0002b020 <__GI___libc_sigaction>: 2b020: std.aw r14r15,[sp,-8] 2b024: push_s r13 2b026: sub_s sp,sp,0x28 ... 2b02e: mov_s r3,r1 2b030: ld r13,[pcl,0xd4e9c] <__default_rt_sa_restorer@@GLIBC_PRIVATE+0xd4558> >> 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 This is where the BE define is used. >> +ld=ld-linux-arceb.so.2 >> +%else >> +ld=ld-linux-arc.so.2 >> +%endif
On 04/06/2020 12:25, Vineet Gupta wrote: > On 6/3/20 12:58 PM, Adhemerval Zanella via Libc-alpha wrote: >> >>> >>> diff --git a/config.h.in b/config.h.in >>> index dea43df438f6..08962dfed075 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 >>> + >> >> Why do you need this define exactly? It is not used anywhere in the code >> and for C code if is more straightforwar to use endian.h. > > It is used in build system as part of "formal" BE ABI support as pointed to in v4 > series review. This specific thing helps choose the right dynamic linker name for > BE case. Ack. > > $ git grep HAVE_ARC_BE > config.h.in:113:#undef HAVE_ARC_BE > sysdeps/arc/configure:175: $as_echo "#define HAVE_ARC_BE 1" >>confdefs.h > sysdeps/arc/configure.ac:22: AC_DEFINE(HAVE_ARC_BE) > sysdeps/unix/sysv/linux/arc/shlib-versions:3:%ifdef HAVE_ARC_BE > > I looked at other ports and they seem to follow similar patters: csky for CSKYABI, > riscv for RISCV_ABI_XLEN etc. Right, it is the usual way indeed. This is fine. > > But I can rework if there's a simpler/better way. > >>> +++ b/sysdeps/arc/Versions >>> @@ -0,0 +1,8 @@ >>> +libc { >>> + GLIBC_2.32 { >>> + __mcount; >>> + } >> >> Hum, does ARC require a different symbol name than the one provided >> by gmon/Versions? > > ARC gcc generates __mcount and _mcount with different ABIs and we use the newer > __mcount. Ack. > >>> +AC_DEFINE(PI_STATIC_AND_HIDDEN) >>> +libc_cv_have_sdata_section=no >> >> The libc_cv_have_sdata_section is done by configure.ac, why do you need >> to explicit set it here? > > We inhibit small data explicitly which by default kicks in. Ok, is it some limitation for loader bootstrap or something else? > >>> +if test $libc_cv_arc_be = yes; then >>> + # For shlib-versions. >>> + AC_DEFINE(HAVE_ARC_BE) >>> + LIBC_CONFIG_VAR([default-abi], [ilp32_be]) >>> +else >>> + LIBC_CONFIG_VAR([default-abi], [ilp32]) >>> +fi >> >> The ilp32 naming is usually set for ILP32 architectures that uses >> 64-bit registers type on 32 bit VMA (for instance mips64n32, x32, >> or aarch64_ilp32). I don't think this is the case for ARC, so I think >> this naming might be confusing. >>> +abi-variants := ilp32 ilp32_be > > arcle arcbe ? LGTM. > >>> + >>> +ifeq (,$(filter $(default-abi),$(abi-variants))) >>> +$(error Unknown ABI $(default-abi), must be one of $(abi-variants)) >>> +endif >>> + >>> +abi-ilp32-condition := !defined __BIG_ENDIAN__ >>> +abi-ilp32_be-condition := defined __BIG_ENDIAN__ >> >> Ok with the 'ilp32' naming module described above. > > >>> diff --git a/sysdeps/unix/sysv/linux/arc/Versions b/sysdeps/unix/sysv/linux/arc/Versions >>> new file mode 100644 >>> index 000000000000..292f1974b02a >>> --- /dev/null >>> +++ b/sysdeps/unix/sysv/linux/arc/Versions >>> @@ -0,0 +1,16 @@ >>> +ld { >>> + GLIBC_PRIVATE { >>> + # used for loading by static libraries >>> + _dl_var_init; >>> + } >>> +} >>> +libc { >>> + GLIBC_2.32 { >>> + _flush_cache; >>> + cacheflush; >>> + } >>> + GLIBC_PRIVATE { >>> + # A copy of sigaction lives in libpthread, and needs these. >>> + __default_rt_sa_restorer; >>> + } >>> +} >> >> Afaik all other ABIs that requires the sa_restores uses a local symbol in >> libpthread. I don't have a strong preference here. > > Do you mean add following to sysdeps/unix/sysv/linux/arc/Makefile > > ifeq ($(subdir),nptl) > libpthread-routines += sigrestorer > libpthread-shared-only-routines += sigrestorer > endif Yeap. > > And that is to optimize the reference to restorer as a direct PC relative access > vs a got reference ? My understanding is this specific optimization does not really matter: sigaction is hardly a hotspot and the symbol will be issue by the kernel itself. AFAIU is more a way to optimize the exported symbols and simplify the GLIBC_PRIVATE namespace (since the sa_restore usually has small text size). > > It seems even in libc, this is currently not optimal. It seems we need > libc_hidden_* on restorer. > > 0002b020 <__GI___libc_sigaction>: > 2b020: std.aw r14r15,[sp,-8] > 2b024: push_s r13 > 2b026: sub_s sp,sp,0x28 > ... > 2b02e: mov_s r3,r1 > 2b030: ld r13,[pcl,0xd4e9c] <__default_rt_sa_restorer@@GLIBC_PRIVATE+0xd4558> > If you define it as attribute_hidden and add on both libc and libpthread it should not require the libc_hidden_{proto,def}. > > >>> 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 > > This is where the BE define is used. > >>> +ld=ld-linux-arceb.so.2 >>> +%else >>> +ld=ld-linux-arc.so.2 >>> +%endif >
On 6/4/20 10:05 AM, Adhemerval Zanella via Libc-alpha wrote: >> We inhibit small data explicitly which by default kicks in. > > Ok, is it some limitation for loader bootstrap or something else? No, the gcc driver defaults to using small data which is too small (no pun intended) for glibc needs.
diff --git a/config.h.in b/config.h.in index dea43df438f6..08962dfed075 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..56ac503bfe43 --- /dev/null +++ b/sysdeps/arc/Makefile @@ -0,0 +1,21 @@ +# ARC Makefile +# Copyright (C) 1993-2020 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..5820017d6505 --- /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 = ilp32_be" +else + config_vars="$config_vars +default-abi = ilp32" +fi diff --git a/sysdeps/arc/configure.ac b/sysdeps/arc/configure.ac new file mode 100644 index 000000000000..d5bcd2a58cdc --- /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 $libc_cv_arc_be = yes; then + # For shlib-versions. + AC_DEFINE(HAVE_ARC_BE) + LIBC_CONFIG_VAR([default-abi], [ilp32_be]) +else + LIBC_CONFIG_VAR([default-abi], [ilp32]) +fi diff --git a/sysdeps/arc/nptl/Makefile b/sysdeps/arc/nptl/Makefile new file mode 100644 index 000000000000..6f387c53905d --- /dev/null +++ b/sysdeps/arc/nptl/Makefile @@ -0,0 +1,22 @@ +# NPTL makefile fragment for ARC. +# Copyright (C) 2005-2020 Free Software Foundation, Inc. +# +# This file is part of the GNU C Library. +# +# The GNU C Library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# The GNU C Library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with the GNU C Library. If not, see +# <https://www.gnu.org/licenses/>. + +ifeq ($(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..7958625f6d5c --- /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 ($(build-shared),yes) +# This is needed for DSO loading from static binaries. +sysdep-dl-routines += dl-static +endif +endif + +abi-variants := ilp32 ilp32_be + +ifeq (,$(filter $(default-abi),$(abi-variants))) +$(error Unknown ABI $(default-abi), must be one of $(abi-variants)) +endif + +abi-ilp32-condition := !defined __BIG_ENDIAN__ +abi-ilp32_be-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..4896ec005c8e --- /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) 2001-2020 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
Signed-off-by: Vineet Gupta <vgupta@synopsys.com> --- 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