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authorJulius Werner <jwerner@chromium.org>2019-03-05 16:57:52 -0800
committerPatrick Georgi <pgeorgi@google.com>2019-03-08 08:33:56 +0000
commitef7a3267870f126cc2f815812cfe54500853d2b8 (patch)
tree7d5e483185092fccb251354917636ab93ef02dd5 /util/lint/kconfig_lint
parentcd49cce7b70e80b4acc49b56bb2bb94370b4d867 (diff)
lint/kconfig: Update to support new CONFIG() macro
This patch updates the Kconfig linter to support the new CONFIG() macro in the same manner that IS_ENABLED() was previously supported. It will be flagged when it is used on non-bool Kconfigs or used with #ifdef, and it is supported for checking used Kconfigs. Remaining uses of IS_ENABLED() are flagged with a deprecation warning. Change-Id: I171ea8bc8e2d22abab7fc4d87ff4cf8aad21084f Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/31776 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'util/lint/kconfig_lint')
-rwxr-xr-xutil/lint/kconfig_lint53
1 files changed, 37 insertions, 16 deletions
diff --git a/util/lint/kconfig_lint b/util/lint/kconfig_lint
index dc01e718a5..6cf05a4b63 100755
--- a/util/lint/kconfig_lint
+++ b/util/lint/kconfig_lint
@@ -193,7 +193,7 @@ sub check_for_ifdef {
#look for #ifdef SYMBOL
while ( my $line = shift @ifdef_symbols ) {
- if ( $line =~ /^([^:]+):(\d+):\s*#\s*ifn?def\s*\(?\s*CONFIG_(\w+)/ ) {
+ if ( $line =~ /^([^:]+):(\d+):\s*#\s*ifn?def\s*\(?\s*CONFIG(?:_|\()(\w+)/ ) {
my $file = $1;
my $lineno = $2;
my $symbol = $3;
@@ -202,7 +202,7 @@ sub check_for_ifdef {
show_warning( "#ifdef 'CONFIG_$symbol' used at $file:$lineno."
. " Symbols of type '$symbols{$symbol}{type}' are always defined." );
}
- } elsif ( $line =~ /^([^:]+):(\d+):\s*#\s*if\s+!?\s*defined\s*\(?\s*CONFIG_(\w+)/ ) {
+ } elsif ( $line =~ /^([^:]+):(\d+):\s*#\s*if\s+!?\s*defined\s*\(?\s*CONFIG(?:_|\()(\w+)/ ) {
my $file = $1;
my $lineno = $2;
my $symbol = $3;
@@ -217,7 +217,7 @@ sub check_for_ifdef {
# look for (#if) defined SYMBOL
@ifdef_symbols = @collected_symbols;
while ( my $line = shift @ifdef_symbols ) {
- if ( $line =~ /^([^:]+):(\d+):.+defined\s*\(\s*CONFIG_(\w+)/ ) {
+ if ( $line =~ /^([^:]+):(\d+):.+defined\s*\(\s*CONFIG(?:_|\()(\w+)/ ) {
my $file = $1;
my $lineno = $2;
my $symbol = $3;
@@ -308,16 +308,35 @@ sub check_type {
}
#-------------------------------------------------------------------------------
-# check_is_enabled - The IS_ENABLED() macro is only valid for symbols of type
-# bool. It would probably work on type hex or int if the value was 0 or 1, but
-# this seems like a bad plan. Using it on strings is dead out.
+# check_is_enabled - The IS_ENABLED() and CONFIG() macros are only valid for
+# symbols of type bool. It would probably work on type hex or int if the value
+# was 0 or 1, but this seems like a bad plan. Using it on strings is dead out.
#-------------------------------------------------------------------------------
sub check_is_enabled {
my @is_enabled_symbols = @collected_symbols;
#sort through symbols found by grep and store them in a hash for easy access
while ( my $line = shift @is_enabled_symbols ) {
- if ( $line =~ /^([^:]+):(\d+):(.+IS_ENABLED.*)/ ) {
+ if ( $line =~ /^([^:]+):(\d+):(.+\bCONFIG\(.*)/ ) {
+ my $file = $1;
+ my $lineno = $2;
+ $line = $3;
+ while ( $line =~ /(.*)\bCONFIG\(([^)]*)\)(.*)/ ) {
+ my $symbol = $2;
+ $line = $1 . $3;
+
+ #make sure that the type is bool
+ if ( exists $symbols{$symbol} ) {
+ if ( $symbols{$symbol}{type} ne "bool" ) {
+ show_error( "CONFIG($symbol) used at $file:$lineno."
+ . " CONFIG() is only valid for type 'bool', not '$symbols{$symbol}{type}'." );
+ }
+ }
+ else {
+ show_warning("CONFIG() used on unknown value ($symbol) at $file:$lineno.");
+ }
+ }
+ } elsif ( $line =~ /^([^:]+):(\d+):(.+IS_ENABLED.*)/ ) {
my $file = $1;
my $lineno = $2;
$line = $3;
@@ -334,6 +353,8 @@ sub check_is_enabled {
if ( $symbols{$symbol}{type} ne "bool" ) {
show_error( "IS_ENABLED(CONFIG_$symbol) used at $file:$lineno."
. " IS_ENABLED is only valid for type 'bool', not '$symbols{$symbol}{type}'." );
+ } else {
+ show_warning("IS_ENABLED(CONFIG_$symbol) at $file:$lineno is deprecated. Use CONFIG($symbol) instead." );
}
}
else {
@@ -348,10 +369,10 @@ sub check_is_enabled {
if ( exists $symbols{$symbol} ) {
if ( $symbols{$symbol}{type} eq "bool" ) {
show_error( "#if CONFIG_$symbol used at $file:$lineno."
- . " IS_ENABLED should be used for type 'bool'" );
+ . " CONFIG($symbol) should be used for type 'bool'" );
}
}
- } elsif ( $line =~ /^([^:]+):(\d+):\s*#\s*(?:el)?if.*(?:&&|\|\|)\s+!?\s*\(?\s*CONFIG_(\w+)\)?(\s*==\s*1)?$/ ) {
+ } elsif ( $line =~ /^([^:]+):(\d+):\s*#\s*(?:el)?if.*(?:&&|\|\|)\s+!?\s*\(?\s*CONFIG_(\w+)\)?(\s*==\s*1)?$/ ) {
my $file = $1;
my $lineno = $2;
my $symbol = $3;
@@ -359,7 +380,7 @@ sub check_is_enabled {
if ( exists $symbols{$symbol} ) {
if ( $symbols{$symbol}{type} eq "bool" ) {
show_error( "#if CONFIG_$symbol used at $file:$lineno."
- . " IS_ENABLED should be used for type 'bool'" );
+ . " CONFIG($symbol) should be used for type 'bool'" );
}
}
}
@@ -471,17 +492,17 @@ sub collect_used_symbols {
# find all references to CONFIG_ statements in the tree
if ($dont_use_git_grep) {
- @collected_symbols = `grep -Irn -- "CONFIG_" | grep -v '$exclude_dirs_and_files'; grep -In -- "CONFIG_" $payload_files_to_check`;
+ @collected_symbols = `grep -Irn -- "CONFIG\\(_\\|(\\)" | grep -v '$exclude_dirs_and_files'; grep -In -- "CONFIG\\(_\\|(\\)" $payload_files_to_check`;
}
else {
- @collected_symbols = `git grep -In -- "CONFIG_" | grep -v '$exclude_dirs_and_files'; git grep -In -- "CONFIG_" $payload_files_to_check`;
+ @collected_symbols = `git grep -In -- "CONFIG\\(_\\|(\\)" | grep -v '$exclude_dirs_and_files'; git grep -In -- "CONFIG\\(_\\|(\\)" $payload_files_to_check`;
}
my @used_symbols = @collected_symbols;
#sort through symbols found by grep and store them in a hash for easy access
while ( my $line = shift @used_symbols ) {
- while ( $line =~ /[^A-Za-z0-9_]CONFIG_([A-Za-z0-9_]+)/g ) {
+ while ( $line =~ /[^A-Za-z0-9_]CONFIG(?:_|\()([A-Za-z0-9_]+)/g ) {
my $symbol = $1;
my $filename = "";
if ( $line =~ /^([^:]+):/ ) {
@@ -684,9 +705,9 @@ sub build_and_parse_kconfig_tree {
# visible if <expr>
elsif ( $line =~ /^\s*visible if.*$/ ) {
- # Must come directly after menu line (and on a separate line)
- # but kconfig already checks for that.
- # Ignore it.
+ # Must come directly after menu line (and on a separate line)
+ # but kconfig already checks for that.
+ # Ignore it.
}
# endmenu