forked from Imagelibrary/binutils-gdb
4f719a08a8
Currently aarch64-linux.xml.in is skipped by update-linux-from-src.sh: ... $ ./update-linux-from-src.sh ~/upstream/linux-stable.git/ Skipping aarch64-linux.xml.in, no syscall.tbl ... $ ... and instead we use update-linux.sh. This works fine, but requires an aarch64 system with recent system headers, which makes it harder to pick up the latest changes in the linux kernel. Fix this by updating ./update-linux-from-src.sh to: - build the linux kernel headers for aarch64 - use update-linux.sh with those headers to generate aarch64-linux.xml.in. Regenerating aarch64-linux.xml.in using current trunk of linux-stable gives me these changes: ... + <syscall name="setxattrat" number="463"/> + <syscall name="getxattrat" number="464"/> + <syscall name="listxattrat" number="465"/> + <syscall name="removexattrat" number="466"/> ... which are the same changes I see for the other architectures. Note that the first step, building the linux kernel headers is a cross build and should work on any architecture. But the second step, update-linux.sh uses plain gcc rather than a cross-gcc, so there is scope for problems, but we seem to get away with this on x86_64-linux. So, while we could constrain this to only generate aarch64-linux.xml.in on aarch64-linux, I'm leaving this unconstrained. For aarch64-linux.xml.in, this doesn't matter much to me because I got an aarch64-linux system. But I don't have a longaarch system, and the same approach seems to work there. I'm leaving this for follow-up patch though. Tested on aarch64-linux and x86_64-linux. Verified with shellcheck.
81 lines
1.9 KiB
Bash
Executable File
81 lines
1.9 KiB
Bash
Executable File
#!/bin/sh
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# Copyright (C) 2022-2024 Free Software Foundation, Inc.
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#
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# This file is part of GDB.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program 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
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Used to generate .xml.in files, like so:
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#
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# ./update-linux.sh amd64-linux.xml.in
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# ./update-linux.sh i386-linux.xml.in -m32
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if [ $# -lt 1 ]; then
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echo "file argument needed"
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exit 1
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fi
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f="$1"
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shift
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if [ ! -f "$f" ]; then
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echo "cannot find $f"
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exit 1
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fi
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startyear=2009
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case "$f" in
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*aarch64-linux.xml.in)
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startyear=2015
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;;
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esac
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year=$(date +%Y)
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(
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cat <<EOF
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<?xml version="1.0"?>
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<!-- Copyright (C) $startyear-$year Free Software Foundation, Inc.
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Copying and distribution of this file, with or without modification,
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are permitted in any medium without royalty provided the copyright
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notice and this notice are preserved. -->
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<!DOCTYPE feature SYSTEM "gdb-syscalls.dtd">
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<!-- This file was generated using the following file:
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<sys/syscall.h>
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The file mentioned above belongs to the Linux Kernel. -->
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EOF
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echo '<syscalls_info>'
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echo '#include <asm/unistd.h>' \
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| gcc -E - -dD "$@" \
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| grep -E '#define __NR_' \
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| while read -r line; do
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name=$(echo "$line" | awk '{print $2}' | sed 's/^__NR_//')
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nr=$(echo "$line" | awk '{print $3}')
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echo " <syscall name=\"$name\" number=\"$nr\"/>"
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done
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echo '</syscalls_info>'
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) > "$f"
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