2017-08-28 09:31:23 +00:00
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#!/bin/bash
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# Consistency checks for the system call list
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2023-01-06 21:08:04 +00:00
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# Copyright (C) 2017-2023 Free Software Foundation, Inc.
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2017-08-28 09:31:23 +00:00
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# This file is part of the GNU C Library.
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#
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 05:40:42 +00:00
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# <https://www.gnu.org/licenses/>.
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2017-08-28 09:31:23 +00:00
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export LC_ALL=C
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set -e
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set -o pipefail
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if test $# != 4; then
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echo "error: wrong number of arguments: $#"
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exit 1
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fi
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macros="$1"
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list_nr="$2"
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list_sys="$3"
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GAWK="$4"
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linux_version="$("$GAWK" \
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'/#define LINUX_VERSION_CODE / {print $3}' < "$macros")"
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glibc_linux_version="$("$GAWK" \
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'/#define __GLIBC_LINUX_VERSION_CODE / {print $3}' < "$macros")"
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echo "info: LINUX_VERSION_CODE: $linux_version"
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echo "info: __GLIBC_LINUX_VERSION_CODE: $glibc_linux_version"
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# Ignore the subrelease in the comparison.
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if test $(expr "$glibc_linux_version" / 256) \
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-lt $(expr "$linux_version" / 256); then
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echo "info: The kernel major/minor version is newer than the glibc version"
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kernel_newer=true
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else
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kernel_newer=false
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fi
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echo
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errors=0
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# Use getpid as a system call which is expected to be always defined.
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# alpha uses getxpid instead, so it is permitted as an alternative.
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if ! grep -E -q '^getx?pid$' -- "$list_nr"; then
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echo "error: __NR_getpid not defined"
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errors=1
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fi
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if ! grep -E -q '^getx?pid$' -- "$list_sys"; then
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echo "error: SYS_getpid not defined"
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errors=1
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fi
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comm_1="$(mktemp)"
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comm_2="$(mktemp)"
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comm_result="$(mktemp)"
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cleanup () {
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rm -f -- "$comm_1" "$comm_2" "$comm_result"
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}
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trap cleanup 0
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sort -o "$comm_1" -- "$list_nr"
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sort -o "$comm_2" -- "$list_sys"
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# Check for missing SYS_* macros.
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comm --check-order -2 -3 -- "$comm_1" "$comm_2" > "$comm_result"
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if test -s "$comm_result"; then
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echo "error: These system calls need to be added to syscall-names.list:"
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cat -- "$comm_result"
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# This is only an error if our version is older than the kernel
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# version because we cannot predict future kernel development.
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if $kernel_newer; then
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echo
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echo "warning: This error has been ignored because the glibc"
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echo "warning: system call list is older than the kernel version."
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else
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errors=1
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fi
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fi
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# Check for additional SYS_* macros.
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comm --check-order -1 -3 -- "$comm_1" "$comm_2" > "$comm_result"
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if test -s "$comm_result"; then
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echo "error: The following system calls have unexpected SYS_* macros:"
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cat -- "$comm_result"
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errors=1
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fi
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exit "$errors"
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