sys/syz-extract: add -includedirs option

Kernel modules are in different directories in some cases,
so to include the headers in the module dir or other directories
the includedirs flag is added.
ex: -includedirs path1/include,path2/include

1 files changed, 6 insertions, 0 deletions

diff --git a/sys/syz-extract/trusty.go b/sys/syz-extract/trusty.go
index 325925c14..71a38a968 100644
--- a/sys/syz-extract/trusty.go
+++ b/sys/syz-extract/trusty.go
@@ -6,6 +6,7 @@ package main
 import (
 	"fmt"
 	"path/filepath"
+	"strings"
 
 	"github.com/google/syzkaller/pkg/compiler"
 )
@@ -33,5 +34,10 @@ func (*trusty) processFile(arch *Arch, info *compiler.ConstInfo) (map[string]uin
 	for _, incdir := range info.Incdirs {
 		args = append(args, "-I"+filepath.Join(dir, incdir))
 	}
+	if arch.includeDirs != "" {
+		for _, dir := range strings.Split(arch.includeDirs, ",") {
+			args = append(args, "-I"+dir)
+		}
+	}
 	return extract(info, "gcc", args, "", true)
 }