third_party/cap/patches/add_go_codegen.patch

--- /dev/null
+++ b/makenames.go
@@ -0,0 +1,73 @@
+// makenames replaces the built-in array generation consisting of Perl incantations being
+// consumed by C code with a single implementation that's shorter anyways.
+package main
+
+import (
+   "io/ioutil"
+	"log"
+	"os"
+	"regexp"
+	"strconv"
+	"strings"
+	"text/template"
+)
+
+type tmplParams struct {
+	Bits     int
+	NameSize int
+	Caps     []string
+}
+
+var capNamesTmpl = template.Must(template.New("cap_names").Parse(`/*
+ * DO NOT EDIT: this file is generated automatically from
+ *
+ *     <uapi/linux/capability.h>
+ */
+
+#define __CAP_BITS       {{ .Bits }}
+#define __CAP_NAME_SIZE  {{ .NameSize }}
+
+#ifdef LIBCAP_PLEASE_INCLUDE_ARRAY
+#define LIBCAP_CAP_NAMES { \
+{{ range $i, $name := .Caps }}      /* {{ $i }} */	{{ if $name }}"{{ $name }}"{{else}}NULL,		/* - presently unused */{{end}}, \
+{{end}}  }
+#endif /* LIBCAP_PLEASE_INCLUDE_ARRAY */
+
+/* END OF FILE */
+`))
+
+var capRe = regexp.MustCompile(`(?m)^#define[ \t](CAP[_A-Z]+)[ \t]+([0-9]+)\s+$`)
+
+func main() {
+	sourceFile, err := ioutil.ReadFile(os.Args[1])
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	matches := capRe.FindAllStringSubmatch(string(sourceFile), -1)
+	out := tmplParams{
+		Caps: make([]string, 1024),
+	}
+	for _, m := range matches {
+		i, err := strconv.Atoi(m[2])
+		if err != nil {
+			log.Fatalln(err)
+		}
+		if i+1 > out.Bits {
+			out.Bits = i + 1
+		}
+		if len(m[1])+1 > out.NameSize {
+			out.NameSize = len(m[1]) + 1
+		}
+		out.Caps[i] = strings.ToLower(m[1])
+	}
+	out.Caps = out.Caps[:out.Bits]
+	outFile, err := os.Create(os.Args[2])
+	if err != nil {
+		log.Fatalln(err)
+	}
+	if err := capNamesTmpl.ExecuteTemplate(outFile, "cap_names", &out); err != nil {
+		log.Fatalln(err)
+	}
+	outFile.Close()
+}
--
2.25.1