#!/usr/bin/perl -w## headers_check.pl execute a number of trivial consistency checks## Usage: headers_check.pl dir [files...]# dir: dir to look for included files# arch: architecture# files: list of files to check## The script reads the supplied files line by line and:## 1) for each include statement it checks if the# included file actually exists.# Only include files located in asm* and linux* are checked.# The rest are assumed to be system include files.## 2) It is checked that prototypes does not use "extern"## 3) Check for leaked CONFIG_ symbolsuse strict;my ($dir, $arch, @files) = @ARGV;my $ret = 0;my $line;my $lineno = 0;my $filename;foreach my $file (@files) { local *FH; $filename = $file; open(FH, "<$filename") or die "$filename: $!\n"; $lineno = 0; while ($line = <FH>) { $lineno++; &check_include(); &check_asm_types(); &check_sizetypes(); &check_prototypes(); # Dropped for now. Too much noise &check_config(); } close FH;}exit $ret;sub check_include{ if ($line =~ m/^\s*#\s*include\s+<((asm|linux).*)>/) { my $inc = $1; my $found; $found = stat($dir . "/" . $inc); if (!$found) { $inc =~ s#asm/#asm-$arch/#; $found = stat($dir . "/" . $inc); } if (!$found) { printf STDERR "$filename:$lineno: included file '$inc' is not exported\n"; $ret = 1; } }}sub check_prototypes{ if ($line =~ m/^\s*extern\b/) { printf STDERR "$filename:$lineno: extern's make no sense in userspace\n"; }}sub check_config{ if ($line =~ m/[^a-zA-Z0-9_]+CONFIG_([a-zA-Z0-9]+)[^a-zA-Z0-9]/) { printf STDERR "$filename:$lineno: leaks CONFIG_$1 to userspace where it is not valid\n"; }}my $linux_asm_types;sub check_asm_types(){ if ($filename =~ /types.h|int-l64.h|int-ll64.h/o) { return; } if ($lineno == 1) { $linux_asm_types = 0; } elsif ($linux_asm_types >= 1) { return; } if ($line =~ m/^\s*#\s*include\s+<asm\/types.h>/) { $linux_asm_types = 1; printf STDERR "$filename:$lineno: " . "include of <linux/types.h> is preferred over <asm/types.h>\n" # Warn until headers are all fixed #$ret = 1; }}my $linux_types;sub check_sizetypes{ if ($filename =~ /types.h|int-l64.h|int-ll64.h/o) { return; } if ($lineno == 1) { $linux_types = 0; } elsif ($linux_types >= 1) { return; } if ($line =~ m/^\s*#\s*include\s+<linux\/types.h>/) { $linux_types = 1; return; } if ($line =~ m/__[us](8|16|32|64)\b/) { printf STDERR "$filename:$lineno: " . "found __[us]{8,16,32,64} type " . "without #include <linux/types.h>\n"; $linux_types = 2; # Warn until headers are all fixed #$ret = 1; }}
#!/usr/bin/perl -w
#
# headers_check.pl execute a number of trivial consistency checks
#
# Usage: headers_check.pl dir [files...]
# dir: dir to look for included files
# arch: architecture
# files: list of files to check
#
# The script reads the supplied files line by line and:
#
# 1) for each include statement it checks if the
# included file actually exists.
# Only include files located in asm* and linux* are checked.
# The rest are assumed to be system include files.
#
# 2) It is checked that prototypes does not use "extern"
#
# 3) Check for leaked CONFIG_ symbols
use strict;
my ($dir, $arch, @files) = @ARGV;
my $ret = 0;
my $line;
my $lineno = 0;
my $filename;
foreach my $file (@files) {
local *FH;
$filename = $file;
open(FH, "<$filename") or die "$filename: $!\n";
$lineno = 0;
while ($line = <FH>) {
$lineno++;
&check_include();
&check_asm_types();
&check_sizetypes();
&check_prototypes();
# Dropped for now. Too much noise &check_config();
}
close FH;
}
exit $ret;
sub check_include
{
if ($line =~ m/^\s*#\s*include\s+<((asm|linux).*)>/) {
my $inc = $1;
my $found;
$found = stat($dir . "/" . $inc);
if (!$found) {
$inc =~ s#asm/#asm-$arch/#;
$found = stat($dir . "/" . $inc);
}
if (!$found) {
printf STDERR "$filename:$lineno: included file '$inc' is not exported\n";
$ret = 1;
}
}
}
sub check_prototypes
{
if ($line =~ m/^\s*extern\b/) {
printf STDERR "$filename:$lineno: extern's make no sense in userspace\n";
}
}
sub check_config
{
if ($line =~ m/[^a-zA-Z0-9_]+CONFIG_([a-zA-Z0-9]+)[^a-zA-Z0-9]/) {
printf STDERR "$filename:$lineno: leaks CONFIG_$1 to userspace where it is not valid\n";
}
}
my $linux_asm_types;
sub check_asm_types()
{
if ($filename =~ /types.h|int-l64.h|int-ll64.h/o) {
return;
}
if ($lineno == 1) {
$linux_asm_types = 0;
} elsif ($linux_asm_types >= 1) {
return;
}
if ($line =~ m/^\s*#\s*include\s+<asm\/types.h>/) {
$linux_asm_types = 1;
printf STDERR "$filename:$lineno: " .
"include of <linux/types.h> is preferred over <asm/types.h>\n"
# Warn until headers are all fixed
#$ret = 1;
}
}
my $linux_types;
sub check_sizetypes
{
if ($filename =~ /types.h|int-l64.h|int-ll64.h/o) {
return;
}
if ($lineno == 1) {
$linux_types = 0;
} elsif ($linux_types >= 1) {
return;
}
if ($line =~ m/^\s*#\s*include\s+<linux\/types.h>/) {
$linux_types = 1;
return;
}
if ($line =~ m/__[us](8|16|32|64)\b/) {
printf STDERR "$filename:$lineno: " .
"found __[us]{8,16,32,64} type " .
"without #include <linux/types.h>\n";
$linux_types = 2;
# Warn until headers are all fixed
#$ret = 1;
}
}