Processes (GNU): uses native impl

CMakeLists.txt

@@ -1388,7 +1388,7 @@ elseif(GNU)
         src/detection/packages/packages_linux.c
         src/detection/packages/packages_nix.c
         src/detection/poweradapter/poweradapter_nosupport.c
-        src/detection/processes/processes_linux.c
+        src/detection/processes/processes_gnu.c
         src/detection/gtk_qt/qt.c
         src/detection/sound/sound_linux.c
         src/detection/swap/swap_linux.c

src/detection/processes/processes_gnu.c

@@ -0,0 +1,33 @@
+#include "processes.h"
+
+#include <hurd.h>
+#include <ps.h>
+
+const char* ffDetectProcesses(uint32_t* result) {
+    struct ps_context* context = nullptr;
+    if (ps_context_create(getproc(), &context) != 0) {
+        return "ps_context_create(getproc()) failed";
+    }
+
+    const char* error = nullptr;
+    struct proc_stat_list* list = nullptr;
+    if (proc_stat_list_create(context, &list) != 0) {
+        error = "proc_stat_list_create() failed";
+        goto done;
+    }
+
+    // No flags are needed; we only count the processes.
+    if (proc_stat_list_add_all(list, nullptr, nullptr) != 0) {
+        error = "proc_stat_list_add_all() failed";
+        goto done;
+    }
+
+    *result = (uint32_t) list->num_procs;
+
+done:
+    if (list) {
+        proc_stat_list_free(list);
+    }
+    ps_context_free(context);
+    return error;
+}