Merge pull request #9865 from jia200x/pr/doc_memory

doc: add `memory management` group

pkg/tlsf/contrib/include/tlsf-malloc.h

@@ -8,7 +8,7 @@
 /**
  * @defgroup pkg_tlsf_malloc TLSF-based malloc.
  * @ingroup  pkg
- * @ingroup  sys
+ * @ingroup  sys_memory_management
  *
  * @brief    TLSF-based global memory allocator.
  *

sys/doc.txt

@@ -28,3 +28,9 @@
  * @ingroup     sys
  * @brief       Provides math libraries and utilities for RIOT
  */
+
+/**
+ * @defgroup    sys_memory_management Memory management
+ * @ingroup     sys
+ * @brief       Provides memory management implementations and utilities
+ */

sys/include/memarray.h

@@ -7,7 +7,7 @@
  */
 /**
  * @defgroup    sys_memarray memory array allocator
- * @ingroup     sys
+ * @ingroup     sys_memory_management
  * @brief       memory array allocator
  * @{
  *

sys/oneway-malloc/include/malloc.h

@@ -8,7 +8,7 @@
 
 /**
  * @defgroup    oneway_malloc Oneway malloc
- * @ingroup     sys
+ * @ingroup     sys_memory_management
  *
  * @brief       A malloc implementation without free for boards where the
  *              toolchain does not implement dynamic memory allocation.

sys/oneway-malloc/oneway-malloc.c

@@ -7,8 +7,7 @@
  */
 
 /**
- * @addtogroup oneway_malloc
- * @ingroup sys
+ * @ingroup oneway_malloc
  * @{
  *
  * @file