From patchwork Thu Jan 25 04:36:20 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Palmer Dabbelt X-Patchwork-Id: 25524 Received: (qmail 23557 invoked by alias); 25 Jan 2018 04:37:17 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 23276 invoked by uid 89); 25 Jan 2018 04:37:14 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-26.1 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, KAM_SHORT, RCVD_IN_DNSWL_NONE, SPF_PASS autolearn=ham version=3.3.2 spammy=fd, lib32, HX-Received:10.98.97.4 X-HELO: mail-pg0-f50.google.com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:date:message-id:in-reply-to:references :cc:from:to; bh=MbFwgMluEy1M3qL/a/iMYrk75YIeZZvM/TW9kodwQJA=; b=Hom41Pj6UbAbF5F+G6mUEAELoJIdIGoHG2p7fh38kJP1BIHjBwaQCPOczmH/FHbJQU DjetvxAiY3QIJCpKQik9jKj/fI52a4Lz8iVPBe2sphI0wfVAGvsnhSw2HnXrx77QPXsa 4w4FSKb3ZXw1sYtKi0eOi9fuBrDCmrzCSg8YfMeusO4J/ZpFKYLQtJANX/8WpkbZPN0i wOhsB+wf0A5SWcTLjxEUt6fnK9hCjIzCflYkCeivUAftRmVlsp4LTyiJioTmPjnkdhce G086UZbZCH0ZCy7Ac/2Hcs3ZEKHKJ88V9fxb834s0R4Y4SnLE+LPZvUneRC4om7ZM3RG go3Q== X-Gm-Message-State: AKwxytdR5zVNNGHazP/SX5TkrDELuqG92xfu5risfnG3g1QqE/l+wlhj yX5tcaT0SQXxkCSVIG4x1NttuQ== X-Google-Smtp-Source: AH8x227bC8Zc6dIk97PPRzizS6VhZEpenKlt4ChnmbOIOFzzBWkI2VH6D8XNesBmAj+hycw84wSRkw== X-Received: by 10.98.97.4 with SMTP id v4mr4645670pfb.160.1516855025749; Wed, 24 Jan 2018 20:37:05 -0800 (PST) Subject: [PATCH 16/17] RISC-V: Build Infastructure Date: Wed, 24 Jan 2018 20:36:20 -0800 Message-Id: <20180125043621.19972-17-palmer@dabbelt.com> In-Reply-To: <20180125043621.19972-1-palmer@dabbelt.com> References: <20180125043621.19972-1-palmer@dabbelt.com> Cc: Andrew Waterman , Darius Rad , dj@redhat.com, patches@groups.riscv.org, Palmer Dabbelt From: Palmer Dabbelt To: libc-alpha@sourceware.org, joseph@codesourcery.com This patch lays out the top-level orginazition of the RISC-V port. It contains all the Implies files as well as various other fragments of build infastructure for the RISC-V port. This contains the only change to a shared file: config.h.in. RISC-V is a family of base ISAs with optional extensions. The base ISAs are RV32I and RV64I, which are 32-bit and 64-bit integer-only ISAs. Support for these live in sysdeps/riscv/rv{32,64}. In addition to these ISAs, our glibc port supports most of the currently-defined extensions: the A extension for atomics, the M extension for multiplication, the C extension for compressed instructions, and the F/D extensions for single/double precision IEEE floating-point. Most of these extensions are handled by GCC, but glibc defines various floating-point wrappers (in sysdeps/riscv/rv{32,64}/rv{f,d}) and emulation routines (in sysdeps/riscv/soft-fp). We support running glibc-based programs on Linux, the suppor for which lives in sysdeps/unix/sysv/linux/riscv. --- sysdeps/riscv/Implies | 5 + sysdeps/riscv/Makefile | 7 + sysdeps/riscv/configure | 4 + sysdeps/riscv/configure.ac | 4 + sysdeps/riscv/nptl/Makefile | 26 +++ sysdeps/riscv/preconfigure | 73 ++++++++ sysdeps/riscv/rv32/Implies-after | 1 + sysdeps/riscv/rv32/rvd/Implies | 2 + sysdeps/riscv/rv32/rvf/Implies | 1 + sysdeps/riscv/rv64/Implies-after | 1 + sysdeps/riscv/rv64/rvd/Implies | 3 + sysdeps/riscv/rv64/rvf/Implies | 1 + sysdeps/unix/sysv/linux/riscv/Implies | 1 + sysdeps/unix/sysv/linux/riscv/Makefile | 27 +++ sysdeps/unix/sysv/linux/riscv/Versions | 11 ++ sysdeps/unix/sysv/linux/riscv/configure | 256 +++++++++++++++++++++++++++ sysdeps/unix/sysv/linux/riscv/configure.ac | 44 +++++ sysdeps/unix/sysv/linux/riscv/rv32/Implies | 3 + sysdeps/unix/sysv/linux/riscv/rv64/Implies | 3 + sysdeps/unix/sysv/linux/riscv/rv64/Makefile | 4 + sysdeps/unix/sysv/linux/riscv/shlib-versions | 13 ++ 21 files changed, 490 insertions(+) create mode 100644 sysdeps/riscv/Implies create mode 100644 sysdeps/riscv/Makefile create mode 100644 sysdeps/riscv/configure create mode 100644 sysdeps/riscv/configure.ac create mode 100644 sysdeps/riscv/nptl/Makefile create mode 100644 sysdeps/riscv/preconfigure create mode 100644 sysdeps/riscv/rv32/Implies-after create mode 100644 sysdeps/riscv/rv32/rvd/Implies create mode 100644 sysdeps/riscv/rv32/rvf/Implies create mode 100644 sysdeps/riscv/rv64/Implies-after create mode 100644 sysdeps/riscv/rv64/rvd/Implies create mode 100644 sysdeps/riscv/rv64/rvf/Implies create mode 100644 sysdeps/unix/sysv/linux/riscv/Implies create mode 100644 sysdeps/unix/sysv/linux/riscv/Makefile create mode 100644 sysdeps/unix/sysv/linux/riscv/Versions create mode 100755 sysdeps/unix/sysv/linux/riscv/configure create mode 100644 sysdeps/unix/sysv/linux/riscv/configure.ac create mode 100644 sysdeps/unix/sysv/linux/riscv/rv32/Implies create mode 100644 sysdeps/unix/sysv/linux/riscv/rv64/Implies create mode 100644 sysdeps/unix/sysv/linux/riscv/rv64/Makefile create mode 100644 sysdeps/unix/sysv/linux/riscv/shlib-versions diff --git a/sysdeps/riscv/Implies b/sysdeps/riscv/Implies new file mode 100644 index 000000000000..c88325b8be16 --- /dev/null +++ b/sysdeps/riscv/Implies @@ -0,0 +1,5 @@ +init_array + +ieee754/ldbl-128 +ieee754/dbl-64 +ieee754/flt-32 diff --git a/sysdeps/riscv/Makefile b/sysdeps/riscv/Makefile new file mode 100644 index 000000000000..20a996810611 --- /dev/null +++ b/sysdeps/riscv/Makefile @@ -0,0 +1,7 @@ +ifeq ($(subdir),misc) +sysdep_headers += sys/asm.h +endif + +# RISC-V's assembler also needs to know about PIC as it changes the definition +# of some assembler macros. +ASFLAGS-.os += $(pic-ccflag) diff --git a/sysdeps/riscv/configure b/sysdeps/riscv/configure new file mode 100644 index 000000000000..53f5f1b5f113 --- /dev/null +++ b/sysdeps/riscv/configure @@ -0,0 +1,4 @@ +# This file is generated from configure.ac by Autoconf. DO NOT EDIT! + # Local configure fragment for sysdeps/riscv/elf. + +$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h diff --git a/sysdeps/riscv/configure.ac b/sysdeps/riscv/configure.ac new file mode 100644 index 000000000000..34f62d4b4b82 --- /dev/null +++ b/sysdeps/riscv/configure.ac @@ -0,0 +1,4 @@ +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. +# Local configure fragment for sysdeps/riscv/elf. + +AC_DEFINE(PI_STATIC_AND_HIDDEN) diff --git a/sysdeps/riscv/nptl/Makefile b/sysdeps/riscv/nptl/Makefile new file mode 100644 index 000000000000..c3cc7f36da7e --- /dev/null +++ b/sysdeps/riscv/nptl/Makefile @@ -0,0 +1,26 @@ +# Makefile for sysdeps/riscv/nptl. +# Copyright (C) 2005-2018 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 diff --git a/sysdeps/riscv/preconfigure b/sysdeps/riscv/preconfigure new file mode 100644 index 000000000000..54ffbb593315 --- /dev/null +++ b/sysdeps/riscv/preconfigure @@ -0,0 +1,73 @@ +case "$machine" in +riscv*) + xlen=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | sed -n 's/^#define __riscv_xlen \(.*\)/\1/p'` + flen=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | sed -n 's/^#define __riscv_flen \(.*\)/\1/p'` + float_abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | sed -n 's/^#define __riscv_float_abi_\([^ ]*\) .*/\1/p'` + atomic=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | grep '#define __riscv_atomic' | cut -d' ' -f2` + + case "$xlen" in + 32) + echo "glibc does not yet support 32-bit systems" >&2 + exit 1 + ;; + 64) + ;; + *) + echo "Unable to determine XLEN" >&2 + exit 1 + ;; + esac + + case "$flen" in + 64) + float_machine=rvd + with_fp_cond=1 + ;; + 32) + echo "glibc does not yet support systems with the F but not D extensions" >&2 + exit 1 + ;; + "") + echo "glibc does not yet support systems without the F extension" >&2 + exit 1 + with_fp_cond=0 + ;; + *) + echo "Unable to determine FLEN" >&2 + exit 1 + ;; + esac + + case "$float_abi" in + soft) + abi_flen=0 + ;; + 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 "$atomic" in + __riscv_atomic) + ;; + *) + echo "glibc requires the A extension" >&2 + exit 1 + ;; + esac + + base_machine=riscv + machine=riscv/rv$xlen/$float_machine + + $as_echo "#define RISCV_ABI_XLEN $xlen" >>confdefs.h + $as_echo "#define RISCV_ABI_FLEN $abi_flen" >>confdefs.h + ;; +esac diff --git a/sysdeps/riscv/rv32/Implies-after b/sysdeps/riscv/rv32/Implies-after new file mode 100644 index 000000000000..39a34c5f5743 --- /dev/null +++ b/sysdeps/riscv/rv32/Implies-after @@ -0,0 +1 @@ +wordsize-32 diff --git a/sysdeps/riscv/rv32/rvd/Implies b/sysdeps/riscv/rv32/rvd/Implies new file mode 100644 index 000000000000..9438838e98b9 --- /dev/null +++ b/sysdeps/riscv/rv32/rvd/Implies @@ -0,0 +1,2 @@ +riscv/rvd +riscv/rvf diff --git a/sysdeps/riscv/rv32/rvf/Implies b/sysdeps/riscv/rv32/rvf/Implies new file mode 100644 index 000000000000..66c401443b8c --- /dev/null +++ b/sysdeps/riscv/rv32/rvf/Implies @@ -0,0 +1 @@ +riscv/rvf diff --git a/sysdeps/riscv/rv64/Implies-after b/sysdeps/riscv/rv64/Implies-after new file mode 100644 index 000000000000..a8cae95f9d46 --- /dev/null +++ b/sysdeps/riscv/rv64/Implies-after @@ -0,0 +1 @@ +wordsize-64 diff --git a/sysdeps/riscv/rv64/rvd/Implies b/sysdeps/riscv/rv64/rvd/Implies new file mode 100644 index 000000000000..42fb132d12ae --- /dev/null +++ b/sysdeps/riscv/rv64/rvd/Implies @@ -0,0 +1,3 @@ +riscv/rv64/rvf +riscv/rvd +riscv/rvf diff --git a/sysdeps/riscv/rv64/rvf/Implies b/sysdeps/riscv/rv64/rvf/Implies new file mode 100644 index 000000000000..66c401443b8c --- /dev/null +++ b/sysdeps/riscv/rv64/rvf/Implies @@ -0,0 +1 @@ +riscv/rvf diff --git a/sysdeps/unix/sysv/linux/riscv/Implies b/sysdeps/unix/sysv/linux/riscv/Implies new file mode 100644 index 000000000000..6faec7011569 --- /dev/null +++ b/sysdeps/unix/sysv/linux/riscv/Implies @@ -0,0 +1 @@ +riscv/nptl diff --git a/sysdeps/unix/sysv/linux/riscv/Makefile b/sysdeps/unix/sysv/linux/riscv/Makefile new file mode 100644 index 000000000000..bf9c24ad77da --- /dev/null +++ b/sysdeps/unix/sysv/linux/riscv/Makefile @@ -0,0 +1,27 @@ +ifeq ($(subdir),elf) +sysdep_routines += dl-vdso +ifeq ($(build-shared),yes) +# This is needed for DSO loading from static binaries. +sysdep-dl-routines += dl-static +endif +endif + +ifeq ($(subdir),misc) +sysdep_headers += sys/cachectl.h +sysdep_routines += flush-icache +endif + +ifeq ($(subdir),stdlib) +gen-as-const-headers += ucontext_i.sym +endif + +abi-variants := ilp32 ilp32d lp64 lp64d + +ifeq (,$(filter $(default-abi),$(abi-variants))) +$(error Unknown ABI $(default-abi), must be one of $(abi-variants)) +endif + +abi-ilp32-condition := !defined __LP64__ && defined __riscv_float_abi_soft +abi-ilp32d-condition := !defined __LP64__ && defined __riscv_float_abi_double +abi-lp64-condition := defined __LP64__ && defined __riscv_float_abi_soft +abi-lp64d-condition := defined __LP64__ && defined __riscv_float_abi_double diff --git a/sysdeps/unix/sysv/linux/riscv/Versions b/sysdeps/unix/sysv/linux/riscv/Versions new file mode 100644 index 000000000000..5625d2a0b8fa --- /dev/null +++ b/sysdeps/unix/sysv/linux/riscv/Versions @@ -0,0 +1,11 @@ +ld { + GLIBC_PRIVATE { + # used for loading by static libraries + _dl_var_init; + } +} +libc { + GLIBC_2.27 { + __riscv_flush_icache; + } +} diff --git a/sysdeps/unix/sysv/linux/riscv/configure b/sysdeps/unix/sysv/linux/riscv/configure new file mode 100755 index 000000000000..54da0fa4cef2 --- /dev/null +++ b/sysdeps/unix/sysv/linux/riscv/configure @@ -0,0 +1,256 @@ +# This file is generated from configure.ac by Autoconf. DO NOT EDIT! + # Local configure fragment for sysdeps/unix/sysv/linux/riscv. + +arch_minimum_kernel=4.15.0 + +libc_cv_riscv_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 | + $EGREP "4 8 8" >/dev/null 2>&1; then : + libc_cv_riscv_int_abi=lp64 +fi +rm -f conftest* + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +__SIZEOF_INT__ __SIZEOF_LONG__ __SIZEOF_POINTER__ + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "4 4 4" >/dev/null 2>&1; then : + libc_cv_riscv_int_abi=ilp32 +fi +rm -f conftest* + +if test $libc_cv_riscv_int_abi = no; then + as_fn_error $? "Unable to determine integer ABI" "$LINENO" 5 +fi + +libc_cv_riscv_float_abi=no +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __riscv_float_abi_double + yes + #endif + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "yes" >/dev/null 2>&1; then : + libc_cv_riscv_float_abi=d +fi +rm -f conftest* + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +#ifdef __riscv_float_abi_soft + yes + #endif + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "yes" >/dev/null 2>&1; then : + libc_cv_riscv_float_abi= +fi +rm -f conftest* + +if test $libc_cv_riscv_float_abi = no; then + as_fn_error $? "Unable to determine floating-point ABI" "$LINENO" 5 +fi + +config_vars="$config_vars +default-abi = $libc_cv_riscv_int_abi$libc_cv_riscv_float_abi" + +case $libc_cv_riscv_int_abi$libc_cv_riscv_float_abi-$machine in +lp64-riscv/rv64/*) + test -n "$libc_cv_slibdir" || +case "$prefix" in +/usr | /usr/) + libc_cv_slibdir=/lib64/lp64 + libc_cv_rtlddir=/lib + if test "$libdir" = '${exec_prefix}/lib'; then + libdir='${exec_prefix}/lib64/lp64'; + # Locale data can be shared between 32-bit and 64-bit libraries. + libc_cv_complocaledir='${exec_prefix}/lib/locale' + fi + ;; +esac + ;; +lp64d-riscv/rv64/*) + test -n "$libc_cv_slibdir" || +case "$prefix" in +/usr | /usr/) + libc_cv_slibdir=/lib64/lp64d + libc_cv_rtlddir=/lib + if test "$libdir" = '${exec_prefix}/lib'; then + libdir='${exec_prefix}/lib64/lp64d'; + # Locale data can be shared between 32-bit and 64-bit libraries. + libc_cv_complocaledir='${exec_prefix}/lib/locale' + fi + ;; +esac + ;; +ilp32-riscv/rv32/*) + test -n "$libc_cv_slibdir" || +case "$prefix" in +/usr | /usr/) + libc_cv_slibdir=/lib32/ilp32 + libc_cv_rtlddir=/lib + if test "$libdir" = '${exec_prefix}/lib'; then + libdir='${exec_prefix}/lib32/ilp32'; + # Locale data can be shared between 32-bit and 64-bit libraries. + libc_cv_complocaledir='${exec_prefix}/lib/locale' + fi + ;; +esac + ;; +ilp32d-riscv/rv32/*) + test -n "$libc_cv_slibdir" || +case "$prefix" in +/usr | /usr/) + libc_cv_slibdir=/lib32/ilp32d + libc_cv_rtlddir=/lib + if test "$libdir" = '${exec_prefix}/lib'; then + libdir='${exec_prefix}/lib32/ilp32d'; + # Locale data can be shared between 32-bit and 64-bit libraries. + libc_cv_complocaledir='${exec_prefix}/lib/locale' + fi + ;; +esac + ;; +esac diff --git a/sysdeps/unix/sysv/linux/riscv/configure.ac b/sysdeps/unix/sysv/linux/riscv/configure.ac new file mode 100644 index 000000000000..0c9bc28249e9 --- /dev/null +++ b/sysdeps/unix/sysv/linux/riscv/configure.ac @@ -0,0 +1,44 @@ +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/riscv. + +arch_minimum_kernel=4.15.0 + +libc_cv_riscv_int_abi=no +AC_EGREP_CPP(4 8 8, [__SIZEOF_INT__ __SIZEOF_LONG__ __SIZEOF_POINTER__ + ], libc_cv_riscv_int_abi=lp64) +AC_EGREP_CPP(4 4 4, [__SIZEOF_INT__ __SIZEOF_LONG__ __SIZEOF_POINTER__ + ], libc_cv_riscv_int_abi=ilp32) +if test $libc_cv_riscv_int_abi = no; then + AC_MSG_ERROR([Unable to determine integer ABI]) +fi + +libc_cv_riscv_float_abi=no +AC_EGREP_CPP(yes, [#ifdef __riscv_float_abi_double + yes + #endif + ],libc_cv_riscv_float_abi=d) +AC_EGREP_CPP(yes, [#ifdef __riscv_float_abi_soft + yes + #endif + ],libc_cv_riscv_float_abi=) +if test $libc_cv_riscv_float_abi = no; then + AC_MSG_ERROR([Unable to determine floating-point ABI]) +fi + +LIBC_CONFIG_VAR([default-abi], [$libc_cv_riscv_int_abi$libc_cv_riscv_float_abi]) + +case $libc_cv_riscv_int_abi$libc_cv_riscv_float_abi-$machine in +lp64-riscv/rv64/*) + LIBC_SLIBDIR_RTLDDIR([lib64/lp64], [lib]) + ;; +lp64d-riscv/rv64/*) + LIBC_SLIBDIR_RTLDDIR([lib64/lp64d], [lib]) + ;; +ilp32-riscv/rv32/*) + LIBC_SLIBDIR_RTLDDIR([lib32/ilp32], [lib]) + ;; +ilp32d-riscv/rv32/*) + LIBC_SLIBDIR_RTLDDIR([lib32/ilp32d], [lib]) + ;; +esac diff --git a/sysdeps/unix/sysv/linux/riscv/rv32/Implies b/sysdeps/unix/sysv/linux/riscv/rv32/Implies new file mode 100644 index 000000000000..8b7deb33cd51 --- /dev/null +++ b/sysdeps/unix/sysv/linux/riscv/rv32/Implies @@ -0,0 +1,3 @@ +unix/sysv/linux/riscv +unix/sysv/linux/generic/wordsize-32 +unix/sysv/linux/generic diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/Implies b/sysdeps/unix/sysv/linux/riscv/rv64/Implies new file mode 100644 index 000000000000..f042343bf7b4 --- /dev/null +++ b/sysdeps/unix/sysv/linux/riscv/rv64/Implies @@ -0,0 +1,3 @@ +unix/sysv/linux/riscv +unix/sysv/linux/generic +unix/sysv/linux/wordsize-64 diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/Makefile b/sysdeps/unix/sysv/linux/riscv/rv64/Makefile new file mode 100644 index 000000000000..cb60d740476d --- /dev/null +++ b/sysdeps/unix/sysv/linux/riscv/rv64/Makefile @@ -0,0 +1,4 @@ +ifeq ($(subdir),socket) +CFLAGS-recv.c += -fexceptions +CFLAGS-send.c += -fexceptions +endif diff --git a/sysdeps/unix/sysv/linux/riscv/shlib-versions b/sysdeps/unix/sysv/linux/riscv/shlib-versions new file mode 100644 index 000000000000..1d2561e7a8ec --- /dev/null +++ b/sysdeps/unix/sysv/linux/riscv/shlib-versions @@ -0,0 +1,13 @@ +DEFAULT GLIBC_2.27 + +%if RISCV_ABI_XLEN == 64 && RISCV_ABI_FLEN == 64 +ld=ld-linux-riscv64-lp64d.so.1 +%elif RISCV_ABI_XLEN == 64 && RISCV_ABI_FLEN == 0 +ld=ld-linux-riscv64-lp64.so.1 +%elif RISCV_ABI_XLEN == 32 && RISCV_ABI_FLEN == 64 +ld=ld-linux-riscv32-ilp32d.so.1 +%elif RISCV_ABI_XLEN == 32 && RISCV_ABI_FLEN == 0 +ld=ld-linux-riscv32-ilp32.so.1 +%else +%error cannot determine ABI +%endif