malloc: add __sbrk

2 files changed, 12 insertions, 0 deletions

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 8ab6f2f..a35657e 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -19,6 +19,12 @@ Build system
 * Ensure correct compilation on GCC 4.x.
 
 
+malloc
+------
+
+* Add __sbrk.
+
+
 sysctl
 ------
 
diff --git a/libgcompat/malloc.c b/libgcompat/malloc.c
index 14fbf66..e0b5851 100644
--- a/libgcompat/malloc.c
+++ b/libgcompat/malloc.c
@@ -27,6 +27,7 @@
 #include <malloc.h> /* memalign */
 #include <stdlib.h> /* {m,c,re}alloc, free */
 #include <string.h> /* memset */
+#include <unistd.h> /* sbrk */
 
 #include "alias.h" /* alias */
 
@@ -73,6 +74,11 @@ void *__libc_realloc(void *ptr, size_t size)
 }
 alias(__libc_realloc, __realloc);
 
+void *__sbrk(intptr_t increment)
+{
+	return sbrk(increment);
+}
+
 struct mallinfo mallinfo(void)
 {
 	struct mallinfo info;