summaryrefslogtreecommitdiffstats
path: root/tools/lib/slab.c
diff options
context:
space:
mode:
Diffstat (limited to 'tools/lib/slab.c')
-rw-r--r--tools/lib/slab.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/tools/lib/slab.c b/tools/lib/slab.c
new file mode 100644
index 000000000..959997fb0
--- /dev/null
+++ b/tools/lib/slab.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stdio.h>
+#include <string.h>
+
+#include <urcu/uatomic.h>
+#include <linux/slab.h>
+#include <malloc.h>
+#include <linux/gfp.h>
+
+int kmalloc_nr_allocated;
+int kmalloc_verbose;
+
+void *kmalloc(size_t size, gfp_t gfp)
+{
+ void *ret;
+
+ if (!(gfp & __GFP_DIRECT_RECLAIM))
+ return NULL;
+
+ ret = malloc(size);
+ uatomic_inc(&kmalloc_nr_allocated);
+ if (kmalloc_verbose)
+ printf("Allocating %p from malloc\n", ret);
+ if (gfp & __GFP_ZERO)
+ memset(ret, 0, size);
+ return ret;
+}
+
+void kfree(void *p)
+{
+ if (!p)
+ return;
+ uatomic_dec(&kmalloc_nr_allocated);
+ if (kmalloc_verbose)
+ printf("Freeing %p to malloc\n", p);
+ free(p);
+}