1 files changed, 37 insertions, 0 deletions
diff --git a/tools/src/dlmalloc/malloc_config.h b/tools/src/dlmalloc/malloc_config.h
new file mode 100644
index 0000000..7616baf
--- /dev/null
+++ b/tools/src/dlmalloc/malloc_config.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: MIT */
+
+#include <string.h>
+
+#include "../heapblock.h"
+#include "../utils.h"
+
+#define HAVE_MORECORE 1
+#define HAVE_MMAP     0
+#define MORECORE      sbrk
+// This is optimal; dlmalloc copes with other users of sbrk/MORECORE gracefully, and heapblock
+// guarantees contiguous returns if called consecutively.
+#define MORECORE_CONTIGUOUS   1
+#define MALLOC_ALIGNMENT      16
+#define ABORT                 panic("dlmalloc: internal error\n")
+#define NO_MALLINFO           1
+#define NO_MALLOC_STATS       1
+#define malloc_getpagesize    16384
+#define LACKS_FCNTL_H         1
+#define LACKS_SYS_MMAN_H      1
+#define LACKS_SYS_PARAM_H     1
+#define LACKS_SYS_TYPES_H     1
+#define LACKS_STRINGS_H       1
+#define LACKS_STRING_H        1
+#define LACKS_STDLIB_H        1
+#define LACKS_SCHED_H         1
+#define LACKS_TIME_H          1
+#define LACKS_UNISTD_H        1
+#define MALLOC_FAILURE_ACTION panic("dlmalloc: out of memory\n");
+
+static void *sbrk(intptr_t inc)
+{
+    if (inc < 0)
+        return (void *)-1;
+
+    return heapblock_alloc(inc);
+}