From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from picard.linux.it (picard.linux.it [213.254.12.146]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3EF7AE6B242 for ; Fri, 1 Nov 2024 10:49:58 +0000 (UTC) Received: from picard.linux.it (localhost [IPv6:::1]) by picard.linux.it (Postfix) with ESMTP id D07353CD32E for ; Fri, 1 Nov 2024 11:49:56 +0100 (CET) Received: from in-2.smtp.seeweb.it (in-2.smtp.seeweb.it [IPv6:2001:4b78:1:20::2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by picard.linux.it (Postfix) with ESMTPS id EA0B83CD2E9 for ; Fri, 1 Nov 2024 11:49:01 +0100 (CET) Authentication-Results: in-2.smtp.seeweb.it; spf=pass (sender SPF authorized) smtp.mailfrom=suse.de (client-ip=195.135.223.130; helo=smtp-out1.suse.de; envelope-from=andrea.cervesato@suse.de; receiver=lists.linux.it) Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by in-2.smtp.seeweb.it (Postfix) with ESMTPS id AF11164552C for ; Fri, 1 Nov 2024 11:49:00 +0100 (CET) Received: from imap1.dmz-prg2.suse.org (unknown [10.150.64.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id D943C21B4B; Fri, 1 Nov 2024 10:48:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1730458140; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=oBvfMbftPQsKgAY8g3BeK38MOEdB3bsAyGSQbJg2+pk=; b=acrQWPlvX+v/742wC37D6ljEtAtfWFATstuV1Zo4UK0yg012TnBSa+UeTKdnZlhzdOIxnN WBsGNGQHy+vid2Gf+E8vHVjLpLL8CVXhsf9ZdhRClvR/3LFHbJ35rlC5tMOH4gTCzJX1VJ gcVCyQz3qY93sL6Q63hBglHBNL8iVDA= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1730458140; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=oBvfMbftPQsKgAY8g3BeK38MOEdB3bsAyGSQbJg2+pk=; b=uw28lOaGK4tBnLZ9xKOdp2Cc9jkxVIR9nEWBCPd50yooookM2RiggtSeywle+YK8otc9J4 qMjCGBgX/QknAiBw== Authentication-Results: smtp-out1.suse.de; none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1730458139; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=oBvfMbftPQsKgAY8g3BeK38MOEdB3bsAyGSQbJg2+pk=; b=jJL7P2TNayhPHbT0G8VS6x2tvX8EkJgnmcXOypn6L2uB4buSv1yr+VSFTBbMFUc/+UU1iU ZVv3IXh0iXJKs1fWkocNddjs7uNv8bsNWAfk6dnESr6RQ82FEzQCMPKy3EQD8SsiyIHUH+ k5QSt3DFtEiu0wtulfOeAqfQlTqLjZg= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1730458139; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=oBvfMbftPQsKgAY8g3BeK38MOEdB3bsAyGSQbJg2+pk=; b=NO21/Ny9gbiWbLszVePsSB+CDyK8x8ZF0lR2wi91/DdMJL6UwkCAjWGe8hUBlDHAtoBJjU UM7zWQcgFWmt5PCA== Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 8C0AD13722; Fri, 1 Nov 2024 10:48:58 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id uB9nERqyJGcIUQAAD6G6ig (envelope-from ); Fri, 01 Nov 2024 10:48:58 +0000 From: Andrea Cervesato Date: Fri, 01 Nov 2024 11:48:27 +0100 MIME-Version: 1.0 Message-Id: <20241101-generate_syscalls-v9-2-d2c3820b0323@suse.com> References: <20241101-generate_syscalls-v9-0-d2c3820b0323@suse.com> In-Reply-To: <20241101-generate_syscalls-v9-0-d2c3820b0323@suse.com> To: ltp@lists.linux.it X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1730458133; l=6483; i=andrea.cervesato@suse.com; s=20240812; h=from:subject:message-id; bh=Z0PiU2prwOV6bqhEyMPuNh2AZk20SA4pCkY92A35v58=; b=iPTBEPvK67BrRwEzZV34DEctBDEvQNR2V+sRyGNAmLtVoyxMk61tWFJnF9+Rc3jJxoz9e6fJn b80gPspAZhvAq8T5rPw5E5TToGfdVjjYyhUKuqqHpSXOJFNdP4zHhxN X-Developer-Key: i=andrea.cervesato@suse.com; a=ed25519; pk=RG/nLJ5snb1tLKGwSORQXBJ5XA4juT0WF2Pc/lq9meo= X-Spamd-Result: default: False [-4.30 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; RCVD_VIA_SMTP_AUTH(0.00)[]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; TO_DN_SOME(0.00)[]; RCVD_TLS_ALL(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.com:email, suse.com:mid, suse.cz:email, imap1.dmz-prg2.suse.org:helo] X-Virus-Scanned: clamav-milter 1.0.3 at in-2.smtp.seeweb.it X-Virus-Status: Clean Subject: [LTP] [PATCH v9 2/5] Add script to generate arch(s) dependant syscalls X-BeenThere: ltp@lists.linux.it X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Test Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" From: Andrea Cervesato Add generate_arch.sh script which can be used to generate arch(s) dependant syscalls file. The way it works is pretty simple: for each architecture defined into supported-arch.txt, compile kernel headers, extract the list of syscalls and generate a .in file containing all of them, associated with their own syscall's number. The way syscalls files are generated, passes through a C application which is automatically checking the availability of the syscalls in the user space environment. Reviewed-by: Li Wang Reviewed-by: Cyril Hrubis Reviewed-by: Petr Vorel Signed-off-by: Andrea Cervesato --- include/lapi/syscalls/generate_arch.sh | 213 +++++++++++++++++++++++++++++++++ 1 file changed, 213 insertions(+) diff --git a/include/lapi/syscalls/generate_arch.sh b/include/lapi/syscalls/generate_arch.sh new file mode 100755 index 0000000000000000000000000000000000000000..5d731794d6492a76c3ba39ac0117b60d8a374740 --- /dev/null +++ b/include/lapi/syscalls/generate_arch.sh @@ -0,0 +1,213 @@ +#!/bin/sh -eu +# SPDX-License-Identifier: GPL-2.0-or-later +# Copyright (c) Linux Test Project, 2009-2024 +# Copyright (c) Marcin Juszkiewicz, 2023-2024 +# +# This is an adaptation of the update-tables.sh script, included in the +# syscalls-table project (https://github.com/hrw/syscalls-table) and released +# under the MIT license. +# +# Author: Andrea Cervesato + +if [ "$#" -eq "0" ]; then + echo "Please provide kernel sources:" + echo "" + echo "$0 path/to/Linux/kernel/sources" + echo "" + exit 1 +fi + +KERNELSRC="$1" + +# to keep sorting in order +export LC_ALL=C + +if [ ! -d "${KERNELSRC}" ]; then + echo "${KERNELSRC} is not a directory" + exit 1 +fi + +if [ ! -e "${KERNELSRC}/Makefile" ]; then + echo "No Makefile in ${KERNELSRC} directory" + exit 1 +fi + +TEMP="$(mktemp -d)" +KVER="$(make -C ${KERNELSRC} kernelversion -s)" + +SCRIPT_DIR="$(realpath $(dirname "$0"))" +SUPPORTED_ARCH="${SCRIPT_DIR}/supported-arch.txt" +LINUX_HEADERS="${TEMP}/headers" + +grab_syscall_names_from_tables() { + for tbl_file in $(find ${KERNELSRC}/arch -name syscall*.tbl); do + grep -E -v "(^#|^$|sys_ni_syscall)" $tbl_file | + awk '{ print $3 }' >>${TEMP}/syscall-names.tosort + done + + drop_bad_entries +} + +grab_syscall_names_from_unistd_h() { + grep -E -h "^#define __NR_" \ + ${LINUX_HEADERS}/usr/include/asm/unistd*.h \ + ${LINUX_HEADERS}/usr/include/asm-generic/unistd.h \ + >${TEMP}/syscall-names.tosort + + drop_bad_entries +} + +drop_bad_entries() { + grep -E -v "(unistd.h|NR3264|__NR_syscall|__SC_COMP|__NR_.*Linux|__NR_FAST)" \ + ${TEMP}/syscall-names.tosort | + grep -E -v "(__SYSCALL|SYSCALL_BASE|SYSCALL_MASK)" | + sed -e "s/#define\s*__NR_//g" -e "s/\s.*//g" | + sort -u >${TEMP}/syscall-names.txt +} + +generate_table() { + echo "- $arch" + + if [ "$bits" -eq "32" ]; then + extraflags="${extraflags} -D__BITS_PER_LONG=32" + fi + + local uppercase_arch=$(echo "$arch" | tr '[:lower:]' '[:upper:]') + + # ignore any error generated by gcc. We want to obtain all the + # available architecture syscalls for the current platform and to handle + # only supported architectures later on + gcc ${TEMP}/list-syscalls.c -U__LP64__ -U__ILP32__ -U__i386__ \ + -D${uppercase_arch} \ + -D__${arch}__ ${extraflags} \ + -I ${LINUX_HEADERS}/usr/include/ \ + -o ${TEMP}/list-syscalls || true + + ${TEMP}/list-syscalls >"${TEMP}/${arch}.in.tosort" + + sort -k2,2n "${TEMP}/${arch}.in.tosort" >"${TEMP}/${arch}.in" +} + +generate_list_syscalls_c() { + ( + printf " + #include + #include + + int main(void) + { + " + for syscall in $(cat ${TEMP}/syscall-names.txt); do + printf " + #ifdef __NR_$syscall + printf(\"$syscall %%d" + # i know the following print is ugly, but dash and bash + # treat double quoted strings in a different way and we + # really need to inject '\n' character in the C code + # rather than carriage return + printf '\\n' + printf "\", __NR_$syscall); + #endif + " + done + printf " return 0; + }" + ) >${TEMP}/list-syscalls.c +} + +export_headers() { + make -s -C ${KERNELSRC} ARCH=${arch} O=${LINUX_HEADERS} \ + headers_install >/dev/null 2>&1 +} + +do_all_tables() { + for archdir in ${KERNELSRC}/arch/*; do + arch=$(basename $archdir) + + bits=64 + extraflags= + + case ${arch} in + Kconfig) + continue + ;; + um) + continue + ;; + esac + + export_headers + grab_syscall_names_from_unistd_h + + case ${arch} in + arm) + bits=32 + arch=armoabi extraflags= generate_table + arch=arm extraflags=-D__ARM_EABI__ generate_table + ;; + loongarch) + # 32-bit variant of loongarch may appear + arch=loongarch64 extraflags=-D_LOONGARCH_SZLONG=64 generate_table + ;; + mips) + arch=mips64 extraflags=-D_MIPS_SIM=_MIPS_SIM_ABI64 generate_table + bits=32 + arch=mipso32 extraflags=-D_MIPS_SIM=_MIPS_SIM_ABI32 generate_table + arch=mips64n32 extraflags=-D_MIPS_SIM=_MIPS_SIM_NABI32 generate_table + ;; + powerpc) + generate_table + arch=powerpc64 generate_table + ;; + riscv) + arch=riscv64 extraflags=-D__LP64__ generate_table + bits=32 + arch=riscv32 extraflags=-D__SIZEOF_POINTER__=4 generate_table + ;; + s390) + bits=32 + generate_table + bits=64 + arch=s390x generate_table + ;; + sparc) + bits=32 + extraflags=-D__32bit_syscall_numbers__ generate_table + bits=64 + arch=sparc64 extraflags=-D__arch64__ generate_table + ;; + x86) + arch=x86_64 extraflags=-D__LP64__ generate_table + bits=32 + arch=i386 generate_table + arch=x32 extraflags=-D__ILP32__ generate_table + ;; + arc | csky | hexagon | m68k | microblaze | nios2 | openrisc | sh | xtensa) + bits=32 generate_table + ;; + *) + generate_table + ;; + esac + done +} + +copy_supported_arch() { + while IFS= read -r arch; do + if [ -f "${TEMP}/${arch}.in" ]; then + echo "- ${arch}" + cp "${TEMP}/${arch}.in" "${SCRIPT_DIR}/${arch}.in" + fi + done <${SUPPORTED_ARCH} +} + +echo "Temporary directory ${TEMP}" +echo "Extracting syscalls" + +grab_syscall_names_from_tables +generate_list_syscalls_c + +do_all_tables + +echo "Copying supported syscalls" +copy_supported_arch -- 2.43.0 -- Mailing list info: https://lists.linux.it/listinfo/ltp