Making malloc / free / realloc function pointers to be able to wrap them later for thread-safe reasons.

1 files changed, 11 insertions, 3 deletions

diff --git a/libc/include/malloc.h b/libc/include/malloc.h
index 8dbfc05..ee877a1 100644
--- a/libc/include/malloc.h
+++ b/libc/include/malloc.h
@@ -5,9 +5,17 @@
 #include <stddef.h>
 #include <string.h>
 
-void * malloc(size_t size);
-void free(void *ptr);
-void * realloc(void *ptr, size_t size);
+typedef void * (*malloc_t)(size_t size);
+typedef void (*free_t)(void * ptr);
+typedef void * (*realloc_t)(void * ptr, size_t size);
+
+void * base_malloc(size_t size);
+void base_free(void * ptr);
+void * base_realloc(void * ptr, size_t size);
+
+extern malloc_t malloc;
+extern free_t free;
+extern realloc_t realloc;
 
 static inline void * calloc(size_t nmemb, size_t size) {
     void * r = malloc(nmemb * size);