From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk1-x730.google.com (mail-qk1-x730.google.com [IPv6:2607:f8b0:4864:20::730]) by sourceware.org (Postfix) with ESMTPS id 46EF23858408 for ; Tue, 4 Jan 2022 14:33:28 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 46EF23858408 Received: by mail-qk1-x730.google.com with SMTP id e25so29264564qkl.12 for ; Tue, 04 Jan 2022 06:33:28 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=szIfD6UNoE+pcT8DGqXqdauB7ZHTtLCxe3ZjVCz1JMo=; b=D1zBA3ZEKWTWjQvb2+1MqjCrF733L6vu8SPf12aVujnzvDHJJXuFc2OWgy9N+tdesu q6svR8er9c3ILLsQh5Bk95l6G2DLAcxgVW+2r0IusFfjTMCMUJewDeDtWXcTdKck7052 8KvnWplttuczJljKj0sC4yZb7xVDveVJBQuL72g5lVzDIJQvBy+pchSN5HV6ofFfhNme oIX7z1SBchmxXi4UeHQ0bdUQK5FnEdxF/WzHfFyHPkXPCUpRN+BwdzGp6yKH0PkLUP4r hu8hpnyRizA+ShVhZpDSdd5tnFzWjca2jIZjYQpWexgr9Nps7cjMqbwnm7bVPMk/0T6z tGxA== X-Gm-Message-State: AOAM532KvwGkI3ESYoOdn5ZwxMoVLy2fpYBCu6DKx1BvRvKCVWDaX8y7 wpyiTlxMkAwVj1nS9LDWPS46QQ== X-Google-Smtp-Source: ABdhPJyIu8HTIqSx75G+UzApOV+EDhV4O5S6EiJSbC8JSAYYvP5oTKWgmZvi8Q0bckKLDZ+jFChkWg== X-Received: by 2002:a05:620a:44c1:: with SMTP id y1mr36545145qkp.187.1641306807660; Tue, 04 Jan 2022 06:33:27 -0800 (PST) Received: from ?IPV6:2804:431:c7ca:a350:1960:9a87:fba4:a664? ([2804:431:c7ca:a350:1960:9a87:fba4:a664]) by smtp.gmail.com with ESMTPSA id n6sm33302374qtx.88.2022.01.04.06.33.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 04 Jan 2022 06:33:27 -0800 (PST) Message-ID: <87264c7f-a754-8f23-2d9b-fd76fd6bd22e@linaro.org> Date: Tue, 4 Jan 2022 11:33:25 -0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.4.0 Subject: Re: [PATCH v2 12/14] LoongArch: Build Infastructure Content-Language: en-US To: caiyinyu , libc-alpha@sourceware.org Cc: xuchenghua@loongson.cn, joseph_myers@mentor.com References: <20211231064455.1030051-1-caiyinyu@loongson.cn> <20211231064455.1030051-13-caiyinyu@loongson.cn> From: Adhemerval Zanella In-Reply-To: <20211231064455.1030051-13-caiyinyu@loongson.cn> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-14.6 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, KAM_SHORT, NICE_REPLY_A, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Jan 2022 14:33:33 -0000 On 31/12/2021 03:44, caiyinyu wrote: > diff --git a/sysdeps/loongarch/nptl/Makefile b/sysdeps/loongarch/nptl/Makefile > new file mode 100644 > index 0000000000..c6c773b179 > --- /dev/null > +++ b/sysdeps/loongarch/nptl/Makefile > @@ -0,0 +1,26 @@ > +# Makefile for sysdeps/loongarch/nptl. > +# Copyright (C) 2021 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 > +# . > + > +ifeq ($(subdir),csu) > +gen-as-const-headers += tcb-offsets.sym > +endif > + > +ifeq ($(subdir),nptl) > +libpthread-sysdep_routines += nptl-sysdep > +libpthread-shared-only-routines += nptl-sysdep > +endif You should not need the nptl-sysdep, the tcb-offsets.h should be suffice. > diff --git a/sysdeps/loongarch/preconfigure b/sysdeps/loongarch/preconfigure > new file mode 100644 > index 0000000000..19983538ed > --- /dev/null > +++ b/sysdeps/loongarch/preconfigure > @@ -0,0 +1,47 @@ > +case "$machine" in > +loongarch*) > + > + grlen=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | sed -n 's/^#define __loongarch_grlen \(.*\)/\1/p'` > + float_abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | sed -n 's/^#define __loongarch_\(soft\|single\|double\)_float.*/\1/p'` > + > + with_fp_cond="!defined __loongarch_soft_float" > + > + case "$float_abi" in > + soft) > + abi_flen=0 > + echo "loongarch does not yet support soft floating-point ABI!!" >&2 Extra whitespace here. > + exit 1 > + ;; > + single) > + echo "glibc does not yet support the single floating-point ABI" >&2 > + exit 1 > + ;; > + double) > + abi_flen=64 > + ;; > + *) > + echo "Unable to determine floating-point ABI" >&2 > + exit 1 > + ;; > + esac > + > + case "$grlen" in > + 32) > + echo "loongarch does not yet support ilp32 ABI!!" >&2 > + ;; > + 64) > + machine=loongarch/lp64 > + ;; > + *) > + echo "Unable to determine GRLEN" >&2 > + exit 1 > + ;; > + esac > + > + $as_echo "#define LOONGARCH_ABI_GRLEN $grlen" >>confdefs.h > + $as_echo "#define LOONGARCH_ABI_FRLEN $abi_flen" >>confdefs.h > + > + base_machine=loongarch > + ;; > +esac > + > diff --git a/sysdeps/loongarch/sys/regdef.h b/sysdeps/loongarch/sys/regdef.h > new file mode 100644 > index 0000000000..f53447db62 > --- /dev/null > +++ b/sysdeps/loongarch/sys/regdef.h > @@ -0,0 +1,98 @@ > +/* Register Macro definitions > + Copyright (C) 2021 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 > + . */ > + > +#ifndef _SYS_REGDEF_H > +#define _SYS_REGDEF_H > + > +#ifdef __loongarch_lp64 > +#define zero $r0 > +#define ra $r1 > +#define tp $r2 > +#define sp $r3 > +#define a0 $r4 > +#define a1 $r5 > +#define a2 $r6 > +#define a3 $r7 > +#define a4 $r8 > +#define a5 $r9 > +#define a6 $r10 > +#define a7 $r11 > +#define v0 $r4 > +#define v1 $r5 > +#define t0 $r12 > +#define t1 $r13 > +#define t2 $r14 > +#define t3 $r15 > +#define t4 $r16 > +#define t5 $r17 > +#define t6 $r18 > +#define t7 $r19 > +#define t8 $r20 > +#define x $r21 > +#define fp $r22 > +#define s0 $r23 > +#define s1 $r24 > +#define s2 $r25 > +#define s3 $r26 > +#define s4 $r27 > +#define s5 $r28 > +#define s6 $r29 > +#define s7 $r30 > +#define s8 $r31 > + > +#define fa0 $f0 > +#define fa1 $f1 > +#define fa2 $f2 > +#define fa3 $f3 > +#define fa4 $f4 > +#define fa5 $f5 > +#define fa6 $f6 > +#define fa7 $f7 > +#define fv0 $f0 > +#define fv1 $f1 > +#define ft0 $f8 > +#define ft1 $f9 > +#define ft2 $f10 > +#define ft3 $f11 > +#define ft4 $f12 > +#define ft5 $f13 > +#define ft6 $f14 > +#define ft7 $f15 > +#define ft8 $f16 > +#define ft9 $f17 > +#define ft10 $f18 > +#define ft11 $f19 > +#define ft12 $f20 > +#define ft13 $f21 > +#define ft14 $f22 > +#define ft15 $f23 > +#define fs0 $f24 > +#define fs1 $f25 > +#define fs2 $f26 > +#define fs3 $f27 > +#define fs4 $f28 > +#define fs5 $f29 > +#define fs6 $f30 > +#define fs7 $f31 > + > +#else > +#error "32bit LoongArch systems are not supported" > +#endif > + > +#endif /* _SYS_REGDEF_H */ > diff --git a/sysdeps/unix/sysv/linux/loongarch/Implies b/sysdeps/unix/sysv/linux/loongarch/Implies > new file mode 100644 > index 0000000000..e52b1ac310 > --- /dev/null > +++ b/sysdeps/unix/sysv/linux/loongarch/Implies > @@ -0,0 +1 @@ > +loongarch/nptl Why do you need this Imply folder? > diff --git a/sysdeps/unix/sysv/linux/loongarch/Makefile b/sysdeps/unix/sysv/linux/loongarch/Makefile > new file mode 100644 > index 0000000000..99ac734f91 > --- /dev/null > +++ b/sysdeps/unix/sysv/linux/loongarch/Makefile > @@ -0,0 +1,11 @@ > +ifeq ($(subdir),elf) > +ifeq ($(build-shared),yes) > +# This is needed for DSO loading from static binaries. > +sysdep-dl-routines += dl-static > +endif > +endif > + There is no need of this file. > +ifeq ($(subdir),stdlib) > +gen-as-const-headers += ucontext_i.sym > +endif > + > diff --git a/sysdeps/unix/sysv/linux/loongarch/configure b/sysdeps/unix/sysv/linux/loongarch/configure > new file mode 100644 > index 0000000000..f4adec4ed9 > --- /dev/null > +++ b/sysdeps/unix/sysv/linux/loongarch/configure > @@ -0,0 +1,199 @@ > +# This file is generated from configure.ac by Autoconf. DO NOT EDIT! > + # Local configure fragment for sysdeps/unix/sysv/linux/loongarch. > + > +arch_minimum_kernel=5.15.0 > + > +libc_cv_loongarch_int_abi=no > + > + > +{ $as_echo "$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" > + > + > +cat confdefs.h - <<_ACEOF >conftest.$ac_ext > +/* end confdefs.h. */ > +__SIZEOF_INT__ __SIZEOF_LONG__ __SIZEOF_POINTER__ > + > +_ACEOF > +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | > + $EGREP "4 4 4" >/dev/null 2>&1; then : > + libc_cv_loongarch_int_abi=lp32 > +fi > +rm -f conftest* > + > +cat confdefs.h - <<_ACEOF >conftest.$ac_ext > +/* end confdefs.h. */ > +__SIZEOF_INT__ __SIZEOF_LONG__ __SIZEOF_POINTER__ > + > +_ACEOF > +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | > + $EGREP "4 8 8" >/dev/null 2>&1; then : > + libc_cv_loongarch_int_abi=lp64 > +fi > +rm -f conftest* > + > +if test $libc_cv_loongarch_int_abi = no; then > + as_fn_error $? "Unable to determine integer ABI" "$LINENO" 5 > +fi > + > +config_vars="$config_vars > +default-abi = $libc_cv_loongarch_int_abi" > + > +case $libc_cv_loongarch_int_abi in > +lp32) > + test -n "$libc_cv_slibdir" || > +case "$prefix" in > +/usr | /usr/) > + libc_cv_slibdir='/lib32' > + libc_cv_rtlddir='/lib32' > + if test "$libdir" = '${exec_prefix}/lib'; then > + libdir='${exec_prefix}/lib32'; > + # Locale data can be shared between 32-bit and 64-bit libraries. > + libc_cv_complocaledir='${exec_prefix}/lib/locale' > + fi > + ;; > +esac > + ;; > +lp64) > + test -n "$libc_cv_slibdir" || > +case "$prefix" in > +/usr | /usr/) > + libc_cv_slibdir='/lib64' > + libc_cv_rtlddir='/lib64' > + if test "$libdir" = '${exec_prefix}/lib'; then > + libdir='${exec_prefix}/lib64'; > + # Locale data can be shared between 32-bit and 64-bit libraries. > + libc_cv_complocaledir='${exec_prefix}/lib/locale' > + fi > + ;; > +esac > + ;; > +esac > + > +ldd_rewrite_script=sysdeps/unix/sysv/linux/loongarch/ldd-rewrite.sed > diff --git a/sysdeps/unix/sysv/linux/loongarch/configure.ac b/sysdeps/unix/sysv/linux/loongarch/configure.ac > new file mode 100644 > index 0000000000..25fda13b09 > --- /dev/null > +++ b/sysdeps/unix/sysv/linux/loongarch/configure.ac > @@ -0,0 +1,27 @@ > +sinclude(./aclocal.m4)dnl Autoconf lossage > +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. > +# Local configure fragment for sysdeps/unix/sysv/linux/loongarch. > + > +arch_minimum_kernel=5.15.0 > + > +libc_cv_loongarch_int_abi=no > +AC_EGREP_CPP(4 4 4, [__SIZEOF_INT__ __SIZEOF_LONG__ __SIZEOF_POINTER__ > + ], libc_cv_loongarch_int_abi=ilp32) > +AC_EGREP_CPP(4 8 8, [__SIZEOF_INT__ __SIZEOF_LONG__ __SIZEOF_POINTER__ > + ], libc_cv_loongarch_int_abi=lp64) > +if test $libc_cv_loongarch_int_abi = no; then > + AC_MSG_ERROR([Unable to determine integer ABI]) > +fi > + > +LIBC_CONFIG_VAR([default-abi], [$libc_cv_loongarch_int_abi]) > + > +case $libc_cv_loongarch_int_abi in > +ilp32) > + LIBC_SLIBDIR_RTLDDIR([lib32], [lib32]) > + ;; > +lp64) > + LIBC_SLIBDIR_RTLDDIR([lib64], [lib64]) > + ;; > +esac > + > +ldd_rewrite_script=sysdeps/unix/sysv/linux/loongarch/ldd-rewrite.sed So is the idea to evetually support ILP32 as well? My understanding it is not currently supported, so I think it should not be handled it yet. > diff --git a/sysdeps/unix/sysv/linux/loongarch/ldd-rewrite.sed b/sysdeps/unix/sysv/linux/loongarch/ldd-rewrite.sed > new file mode 100644 > index 0000000000..d42a13e08c > --- /dev/null > +++ b/sysdeps/unix/sysv/linux/loongarch/ldd-rewrite.sed > @@ -0,0 +1,3 @@ > +/LD_TRACE_LOADED_OBJECTS=1/a\ > +add_env="$add_env LD_LIBRARY_VERSION=\\$verify_out" > +s_^\(RTLDLIST=\)\(.*lib\)\(\|64\|32\)\(/[^/]*\)\(-loongarch\)\(64\|32\)\(\.so\.[0-9.]*\)[[:blank:]]*$_\1"\2\4\7 \264\4-loongarch64\7 \232\4-loongarch32\7"_ > diff --git a/sysdeps/unix/sysv/linux/loongarch/lp64/Implies b/sysdeps/unix/sysv/linux/loongarch/lp64/Implies > new file mode 100644 > index 0000000000..117c2b8efe > --- /dev/null > +++ b/sysdeps/unix/sysv/linux/loongarch/lp64/Implies > @@ -0,0 +1,3 @@ > +unix/sysv/linux/loongarch > +unix/sysv/linux/generic > +unix/sysv/linux/wordsize-64 > diff --git a/sysdeps/unix/sysv/linux/loongarch/shlib-versions b/sysdeps/unix/sysv/linux/loongarch/shlib-versions > new file mode 100644 > index 0000000000..aa9257fc61 > --- /dev/null > +++ b/sysdeps/unix/sysv/linux/loongarch/shlib-versions > @@ -0,0 +1,7 @@ > +DEFAULT GLIBC_2.35 > + > +%if LOONGARCH_ABI_GRLEN == 64 && LOONGARCH_ABI_FRLEN == 64 > +ld=ld-linux-loongarch-lp64d.so.1 > +%else > +%error cannot determine ABI > +%endif