From fac05879fd7b857d61ce5d34d45fe930fe0192a3 Mon Sep 17 00:00:00 2001
From: Michael Forney <mforney@mforney.org>
Date: Thu, 13 Feb 2020 14:07:20 -0800
Subject: Add linux-headers 5.5.3

---
 pkg/linux-headers/gen.lua | 97 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 pkg/linux-headers/gen.lua

(limited to 'pkg/linux-headers/gen.lua')

diff --git a/pkg/linux-headers/gen.lua b/pkg/linux-headers/gen.lua
new file mode 100644
index 00000000..0673e11a
--- /dev/null
+++ b/pkg/linux-headers/gen.lua
@@ -0,0 +1,97 @@
+local arch = ({
+	aarch64='arm64',
+	x86_64='x86',
+})[config.target.platform:match('[^-]*')]
+sub('tools.ninja', function()
+	toolchain(config.host)
+	exe('unifdef', {'scripts/unifdef.c'})
+end)
+
+rule('header', 'sed -E -f $dir/header.sed $in >$out.tmp && { $outdir/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__ $out.tmp >$out; [ $$? -le 1 ]; } && rm $out.tmp')
+rule('wrapper', [[printf '#include <asm-generic/%s>\n' $file >$out]])
+
+local function process(outdir, srcdir, files)
+	local outs = {}
+	for i, file in ipairs(files) do
+		local out = outdir..'/'..file
+		outs[i] = out
+		build('header', out, {srcdir..'/'..file, '|', '$dir/header.sed', '$outdir/unifdef'})
+	end
+	return outs
+end
+
+local mandatory = {
+	-- <awk '$1 == "mandatory-y" {printf "\\t'\'%s\'',\\n", $3}' src/include/uapi/asm-generic/Kbuild
+	'auxvec.h',
+	'bitsperlong.h',
+	'bpf_perf_event.h',
+	'byteorder.h',
+	'errno.h',
+	'fcntl.h',
+	'ioctl.h',
+	'ioctls.h',
+	'ipcbuf.h',
+	'mman.h',
+	'msgbuf.h',
+	'param.h',
+	'poll.h',
+	'posix_types.h',
+	'ptrace.h',
+	'resource.h',
+	'sembuf.h',
+	'setup.h',
+	'shmbuf.h',
+	'sigcontext.h',
+	'siginfo.h',
+	'signal.h',
+	'socket.h',
+	'sockios.h',
+	'stat.h',
+	'statfs.h',
+	'swab.h',
+	'termbits.h',
+	'termios.h',
+	'types.h',
+	'unistd.h',
+}
+
+local basefiles = load('base.lua')
+local archfiles = load(arch..'.lua')
+
+build('awk', '$outdir/include/linux/version.h', {'$srcdir/Makefile', '|', '$dir/version.awk'}, {
+	expr='-f $dir/version.awk',
+})
+
+pkg.hdrs = {
+	'$outdir/include/linux/version.h',
+	process('$outdir/include', '$srcdir/include/uapi', basefiles),
+	process('$outdir/include', '$srcdir/arch/'..arch..'/include/uapi', archfiles),
+	install=true,
+}
+
+for _, file in ipairs(archfiles) do
+	archfiles[file] = true
+end
+for _, file in ipairs(mandatory) do
+	if not archfiles['asm/'..file] then
+		local out = '$outdir/include/asm/'..file
+		build('wrapper', out, nil, {file=file})
+		table.insert(pkg.hdrs, out)
+	end
+end
+
+for _, spec in ipairs(archfiles.unistd) do
+	local out = '$outdir/include/asm/'..spec.dst
+	build('awk', out, {'$srcdir/'..spec.src, '|', '$dir/unistd.awk'}, {
+		expr={
+			'-v arch='..arch,
+			'-v file='..spec.dst,
+			string.format([[-v abi='%s']], spec.abi),
+			'-v off='..(spec.off or ''),
+			'-f $dir/unistd.awk',
+		},
+	})
+	table.insert(pkg.hdrs, out)
+end
+
+fetch 'local'
-- 
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