toolbox/modprobe: Fallback to /lib/modules/<uname>
Make the module directory optional by reading the kernel release
version. This path is where the kernel installs modules by default.
Similar behaviour can be found in several modprobe implementations.
Bug: 254835242
Change-Id: I61707636705e5b4d9bd8ccf6351e7057eae6bcf5
diff --git a/toolbox/modprobe.cpp b/toolbox/modprobe.cpp
index 711586a..17f8156 100644
--- a/toolbox/modprobe.cpp
+++ b/toolbox/modprobe.cpp
@@ -23,8 +23,11 @@
#include <android-base/file.h>
#include <android-base/logging.h>
#include <android-base/strings.h>
+#include <android-base/stringprintf.h>
#include <modprobe/modprobe.h>
+#include <sys/utsname.h>
+
namespace {
enum modprobe_mode {
@@ -37,9 +40,8 @@
void print_usage(void) {
LOG(INFO) << "Usage:";
LOG(INFO);
- // -d option is required on Android
- LOG(INFO) << " modprobe [options] -d DIR [--all=FILE|MODULE]...";
- LOG(INFO) << " modprobe [options] -d DIR MODULE [symbol=value]...";
+ LOG(INFO) << " modprobe [options] [-d DIR] [--all=FILE|MODULE]...";
+ LOG(INFO) << " modprobe [options] [-d DIR] MODULE [symbol=value]...";
LOG(INFO);
LOG(INFO) << "Options:";
LOG(INFO) << " --all=FILE: FILE to acquire module names from";
@@ -189,6 +191,12 @@
}
}
+ if (mod_dirs.empty()) {
+ utsname uts;
+ uname(&uts);
+ mod_dirs.emplace_back(android::base::StringPrintf("/lib/modules/%s", uts.release));
+ }
+
LOG(DEBUG) << "mode is " << mode;
LOG(DEBUG) << "mod_dirs is: " << android::base::Join(mod_dirs, " ");
LOG(DEBUG) << "modules is: " << android::base::Join(modules, " ");
