Commit eae0f536 authored by Sam Ravnborg's avatar Sam Ravnborg

kbuild: remove obsoleted scripts/reference_* files

The checks performed by scripts/reference_* has been moved to modpost.
Remove the files and their reference in top-level Makefile.
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent 6c2133e1
......@@ -1028,8 +1028,6 @@ help:
@echo ' kernelversion - Output the version stored in Makefile'
@echo ''
@echo 'Static analysers'
@echo ' buildcheck - List dangling references to vmlinux discarded sections'
@echo ' and init sections from non-init sections'
@echo ' checkstack - Generate a list of stack hogs'
@echo ' namespacecheck - Name space analysis on compiled kernel'
@echo ''
......@@ -1255,10 +1253,6 @@ versioncheck:
-name '*.[hcS]' -type f -print | sort \
| xargs $(PERL) -w scripts/checkversion.pl
buildcheck:
$(PERL) $(srctree)/scripts/reference_discarded.pl
$(PERL) $(srctree)/scripts/reference_init.pl
namespacecheck:
$(PERL) $(srctree)/scripts/namespace.pl
......
#!/usr/bin/perl -w
#
# reference_discarded.pl (C) Keith Owens 2001 <kaos@ocs.com.au>
#
# Released under GPL V2.
#
# List dangling references to vmlinux discarded sections.
use strict;
die($0 . " takes no arguments\n") if($#ARGV >= 0);
my %object;
my $object;
my $line;
my $ignore;
my $errorcount;
$| = 1;
# printf("Finding objects, ");
open(OBJDUMP_LIST, "find . -name '*.o' | xargs objdump -h |") || die "getting objdump list failed";
while (defined($line = <OBJDUMP_LIST>)) {
chomp($line);
if ($line =~ /:\s+file format/) {
($object = $line) =~ s/:.*//;
$object{$object}->{'module'} = 0;
$object{$object}->{'size'} = 0;
$object{$object}->{'off'} = 0;
}
if ($line =~ /^\s*\d+\s+\.modinfo\s+/) {
$object{$object}->{'module'} = 1;
}
if ($line =~ /^\s*\d+\s+\.comment\s+/) {
($object{$object}->{'size'}, $object{$object}->{'off'}) = (split(' ', $line))[2,5];
}
}
close(OBJDUMP_LIST);
# printf("%d objects, ", scalar keys(%object));
$ignore = 0;
foreach $object (keys(%object)) {
if ($object{$object}->{'module'}) {
++$ignore;
delete($object{$object});
}
}
# printf("ignoring %d module(s)\n", $ignore);
# Ignore conglomerate objects, they have been built from multiple objects and we
# only care about the individual objects. If an object has more than one GCC:
# string in the comment section then it is conglomerate. This does not filter
# out conglomerates that consist of exactly one object, can't be helped.
# printf("Finding conglomerates, ");
$ignore = 0;
foreach $object (keys(%object)) {
if (exists($object{$object}->{'off'})) {
my ($off, $size, $comment, $l);
$off = hex($object{$object}->{'off'});
$size = hex($object{$object}->{'size'});
open(OBJECT, "<$object") || die "cannot read $object";
seek(OBJECT, $off, 0) || die "seek to $off in $object failed";
$l = read(OBJECT, $comment, $size);
die "read $size bytes from $object .comment failed" if ($l != $size);
close(OBJECT);
if ($comment =~ /GCC\:.*GCC\:/m || $object =~ /built-in\.o/) {
++$ignore;
delete($object{$object});
}
}
}
# printf("ignoring %d conglomerate(s)\n", $ignore);
# printf("Scanning objects\n");
# Keith Ownes <kaos@sgi.com> commented:
# For our future {in}sanity, add a comment that this is the ppc .opd
# section, not the ia64 .opd section.
# ia64 .opd should not point to discarded sections.
$errorcount = 0;
foreach $object (keys(%object)) {
my $from;
open(OBJDUMP, "objdump -r $object|") || die "cannot objdump -r $object";
while (defined($line = <OBJDUMP>)) {
chomp($line);
if ($line =~ /RELOCATION RECORDS FOR /) {
($from = $line) =~ s/.*\[([^]]*).*/$1/;
}
if (($line =~ /\.text\.exit$/ ||
$line =~ /\.exit\.text$/ ||
$line =~ /\.data\.exit$/ ||
$line =~ /\.exit\.data$/ ||
$line =~ /\.exitcall\.exit$/) &&
($from !~ /\.text\.exit$/ &&
$from !~ /\.exit\.text$/ &&
$from !~ /\.data\.exit$/ &&
$from !~ /\.opd$/ &&
$from !~ /\.exit\.data$/ &&
$from !~ /\.altinstructions$/ &&
$from !~ /\.pdr$/ &&
$from !~ /\.debug_.*$/ &&
$from !~ /\.exitcall\.exit$/ &&
$from !~ /\.eh_frame$/ &&
$from !~ /\.stab$/)) {
printf("Error: %s %s refers to %s\n", $object, $from, $line);
$errorcount = $errorcount + 1;
}
}
close(OBJDUMP);
}
# printf("Done\n");
exit(0);
#!/usr/bin/perl -w
#
# reference_init.pl (C) Keith Owens 2002 <kaos@ocs.com.au>
#
# List references to vmlinux init sections from non-init sections.
# Unfortunately I had to exclude references from read only data to .init
# sections, almost all of these are false positives, they are created by
# gcc. The downside of excluding rodata is that there really are some
# user references from rodata to init code, e.g. drivers/video/vgacon.c
#
# const struct consw vga_con = {
# con_startup: vgacon_startup,
#
# where vgacon_startup is __init. If you want to wade through the false
# positives, take out the check for rodata.
use strict;
die($0 . " takes no arguments\n") if($#ARGV >= 0);
my %object;
my $object;
my $line;
my $ignore;
$| = 1;
printf("Finding objects, ");
open(OBJDUMP_LIST, "find . -name '*.o' | xargs objdump -h |") || die "getting objdump list failed";
while (defined($line = <OBJDUMP_LIST>)) {
chomp($line);
if ($line =~ /:\s+file format/) {
($object = $line) =~ s/:.*//;
$object{$object}->{'module'} = 0;
$object{$object}->{'size'} = 0;
$object{$object}->{'off'} = 0;
}
if ($line =~ /^\s*\d+\s+\.modinfo\s+/) {
$object{$object}->{'module'} = 1;
}
if ($line =~ /^\s*\d+\s+\.comment\s+/) {
($object{$object}->{'size'}, $object{$object}->{'off'}) = (split(' ', $line))[2,5];
}
}
close(OBJDUMP_LIST);
printf("%d objects, ", scalar keys(%object));
$ignore = 0;
foreach $object (keys(%object)) {
if ($object{$object}->{'module'}) {
++$ignore;
delete($object{$object});
}
}
printf("ignoring %d module(s)\n", $ignore);
# Ignore conglomerate objects, they have been built from multiple objects and we
# only care about the individual objects. If an object has more than one GCC:
# string in the comment section then it is conglomerate. This does not filter
# out conglomerates that consist of exactly one object, can't be helped.
printf("Finding conglomerates, ");
$ignore = 0;
foreach $object (keys(%object)) {
if (exists($object{$object}->{'off'})) {
my ($off, $size, $comment, $l);
$off = hex($object{$object}->{'off'});
$size = hex($object{$object}->{'size'});
open(OBJECT, "<$object") || die "cannot read $object";
seek(OBJECT, $off, 0) || die "seek to $off in $object failed";
$l = read(OBJECT, $comment, $size);
die "read $size bytes from $object .comment failed" if ($l != $size);
close(OBJECT);
if ($comment =~ /GCC\:.*GCC\:/m || $object =~ /built-in\.o/) {
++$ignore;
delete($object{$object});
}
}
}
printf("ignoring %d conglomerate(s)\n", $ignore);
printf("Scanning objects\n");
foreach $object (sort(keys(%object))) {
my $from;
open(OBJDUMP, "objdump -r $object|") || die "cannot objdump -r $object";
while (defined($line = <OBJDUMP>)) {
chomp($line);
if ($line =~ /RELOCATION RECORDS FOR /) {
($from = $line) =~ s/.*\[([^]]*).*/$1/;
}
if (($line =~ /\.init$/ || $line =~ /\.init\./) &&
($from !~ /\.init$/ &&
$from !~ /\.init\./ &&
$from !~ /\.stab$/ &&
$from !~ /\.rodata$/ &&
$from !~ /\.text\.lock$/ &&
$from !~ /\.pci_fixup_header$/ &&
$from !~ /\.pci_fixup_final$/ &&
$from !~ /\.pdr$/ &&
$from !~ /\__param$/ &&
$from !~ /\.altinstructions/ &&
$from !~ /\.eh_frame/ &&
$from !~ /\.debug_/)) {
printf("Error: %s %s refers to %s\n", $object, $from, $line);
}
}
close(OBJDUMP);
}
printf("Done\n");
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