Revision 966a0acce2fca776391823381dba95c40e03c339 authored by Sami Tolvanen on 30 July 2020, 15:37:01 UTC, committed by Will Deacon on 30 July 2020, 15:50:14 UTC
Commit f7b93d42945c ("arm64/alternatives: use subsections for replacement sequences") breaks LLVM's integrated assembler, because due to its one-pass design, it cannot compute instruction sequence lengths before the layout for the subsection has been finalized. This change fixes the build by moving the .org directives inside the subsection, so they are processed after the subsection layout is known. Fixes: f7b93d42945c ("arm64/alternatives: use subsections for replacement sequences") Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Link: https://github.com/ClangBuiltLinux/linux/issues/1078 Link: https://lore.kernel.org/r/20200730153701.3892953-1-samitolvanen@google.com Signed-off-by: Will Deacon <will@kernel.org>
1 parent 7b7891c
checkversion.pl
#! /usr/bin/env perl
# SPDX-License-Identifier: GPL-2.0
#
# checkversion find uses of LINUX_VERSION_CODE or KERNEL_VERSION
# without including <linux/version.h>, or cases of
# including <linux/version.h> that don't need it.
# Copyright (C) 2003, Randy Dunlap <rdunlap@xenotime.net>
use strict;
$| = 1;
my $debugging;
foreach my $file (@ARGV) {
next if $file =~ "include/linux/version\.h";
# Open this file.
open( my $f, '<', $file )
or die "Can't open $file: $!\n";
# Initialize variables.
my ($fInComment, $fInString, $fUseVersion);
my $iLinuxVersion = 0;
while (<$f>) {
# Strip comments.
$fInComment && (s+^.*?\*/+ +o ? ($fInComment = 0) : next);
m+/\*+o && (s+/\*.*?\*/+ +go, (s+/\*.*$+ +o && ($fInComment = 1)));
# Pick up definitions.
if ( m/^\s*#/o ) {
$iLinuxVersion = $. if m/^\s*#\s*include\s*"linux\/version\.h"/o;
}
# Strip strings.
$fInString && (s+^.*?"+ +o ? ($fInString = 0) : next);
m+"+o && (s+".*?"+ +go, (s+".*$+ +o && ($fInString = 1)));
# Pick up definitions.
if ( m/^\s*#/o ) {
$iLinuxVersion = $. if m/^\s*#\s*include\s*<linux\/version\.h>/o;
}
# Look for uses: LINUX_VERSION_CODE, KERNEL_VERSION, UTS_RELEASE
if (($_ =~ /LINUX_VERSION_CODE/) || ($_ =~ /\WKERNEL_VERSION/)) {
$fUseVersion = 1;
last if $iLinuxVersion;
}
}
# Report used version IDs without include?
if ($fUseVersion && ! $iLinuxVersion) {
print "$file: $.: need linux/version.h\n";
}
# Report superfluous includes.
if ($iLinuxVersion && ! $fUseVersion) {
print "$file: $iLinuxVersion linux/version.h not needed.\n";
}
# debug: report OK results:
if ($debugging) {
if ($iLinuxVersion && $fUseVersion) {
print "$file: version use is OK ($iLinuxVersion)\n";
}
if (! $iLinuxVersion && ! $fUseVersion) {
print "$file: version use is OK (none)\n";
}
}
close($f);
}
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