build: remove the old "linter"

It was a good idea, but it didn't even work. 0/10
Maybe I should replace it with semgrep someday.

For the only current rule, I can split src/kernel/ into src/kernel/{amd64,generic},
and just don't have amd64 in generic's include path.

2 files changed, 1 insertions, 31 deletions

diff --git a/Makefile b/Makefile
index 85cc7a3..586f401 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,6 @@ PATH   := $(shell pwd)/toolchain/prefix/bin/:$(PATH)
 AR      = x86_64-camellia-ar
 AS      = x86_64-camellia-as
 CC      = x86_64-camellia-gcc
-CHECK   = sparse
 
 CFLAGS += -g -std=gnu99 -O2 -ftrack-macro-expansion=0
 CFLAGS += -Wall -Wextra -Wold-style-definition -Werror=implicit-function-declaration
@@ -38,7 +37,7 @@ define from_sources
 endef
 
 
-.PHONY: all portdeps boot lint check clean
+.PHONY: all portdeps boot check clean
 all: portdeps out/boot.iso check
 portdeps: out/libc.a out/libm.a src/user/lib/include/__errno.h
 
@@ -62,7 +61,6 @@ test: all
 
 check: $(shell find src/kernel/ -type f -name *.c)
 	@echo $^ | xargs -n 1 sparse $(SPARSEFLAGS)
-	@tools/linter/main.rb
 
 clean:
 	rm -rf out/
diff --git a/tools/linter/main.rb b/tools/linter/main.rb
deleted file mode 100755
index 1198fd1..0000000
--- a/tools/linter/main.rb
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/usr/bin/env ruby
-# must be run in the root directory of the repo
-# currently it only checks if code in src/kernel/ uses anything arch-dependent
-
-$return = 0
-
-def warn(msg)
-  STDERR.puts "[LINTER] #{msg}"
-  $return = 1
-end
-
-whitelist = ["arch/generic.h"]
-
-Dir["src/kernel/**.?"]
-  .each do |path|
-    File.read(path)
-      .lines
-      .map(&:strip)                          # strip whitespace
-      .filter{|line| line[0] == '#'}         # find preprocessor directives
-      .map{|line| line[1..].strip}           # get rid of the #, strip again
-      .filter{|l| l.start_with? "include"}   # find includes
-      .map{|l| /([<"](.+)[">])/.match(l)[2]} # get the name of the included file
-      .filter{|l| l.start_with? "arch/"}     # find files in arch/
-      .filter{|l| not whitelist.include? l}  # filter out whitelisted headers
-      .each{|inc| warn "#{path} includes #{inc}"}
-  end
-
-exit $return