mysqld: print status display subset of memory usage.

leveling up to some degree with linux's mallinfo* api for
 the memory usage display with debug build with malloc_zone
 Darwin api.

Closes: #1803

cmake/os/WindowsCache.cmake

@@ -92,6 +92,7 @@ SET(HAVE_MADVISE CACHE  INTERNAL "")
 SET(HAVE_MALLINFO CACHE  INTERNAL "")
 SET(HAVE_MALLINFO2 CACHE  INTERNAL "")
 SET(HAVE_MALLOC_H 1 CACHE  INTERNAL "")
+SET(HAVE_MALLOC_ZONE CACHE  INTERNAL "")
 SET(HAVE_MEMALIGN CACHE  INTERNAL "")
 SET(HAVE_MEMCPY 1 CACHE  INTERNAL "")
 SET(HAVE_MEMMOVE 1 CACHE  INTERNAL "")

config.h.cmake

@@ -170,6 +170,7 @@
 #cmakedefine HAVE_DECL_MHA_MAPSIZE_VA 1
 #cmakedefine HAVE_MALLINFO 1
 #cmakedefine HAVE_MALLINFO2 1
+#cmakedefine HAVE_MALLOC_ZONE 1
 #cmakedefine HAVE_MEMCPY 1
 #cmakedefine HAVE_MEMMOVE 1
 #cmakedefine HAVE_MKSTEMP 1

configure.cmake

@@ -364,6 +364,7 @@ CHECK_FUNCTION_EXISTS (lstat HAVE_LSTAT)
 CHECK_FUNCTION_EXISTS (madvise HAVE_MADVISE)
 CHECK_FUNCTION_EXISTS (mallinfo HAVE_MALLINFO)
 CHECK_FUNCTION_EXISTS (mallinfo2 HAVE_MALLINFO2)
+CHECK_FUNCTION_EXISTS (malloc_zone_statistics HAVE_MALLOC_ZONE)
 CHECK_FUNCTION_EXISTS (memcpy HAVE_MEMCPY)
 CHECK_FUNCTION_EXISTS (memmove HAVE_MEMMOVE)
 CHECK_FUNCTION_EXISTS (mkstemp HAVE_MKSTEMP)

sql/sql_test.cc

@@ -33,6 +33,8 @@
 #include <malloc.h>
 #elif defined(HAVE_MALLINFO) && defined(HAVE_SYS_MALLOC_H)
 #include <sys/malloc.h>
+#elif defined(HAVE_MALLOC_ZONE)
+#include <malloc/malloc.h>
 #endif
 
 #ifdef HAVE_EVENT_SCHEDULER
@@ -653,6 +655,20 @@ Memory allocated by threads:             %s\n",
          llstr(tmp.global_memory_used, llbuff[8]),
          llstr(tmp.local_memory_used, llbuff[9]));
 
+#elif defined(HAVE_MALLOC_ZONE)
+  malloc_statistics_t info;
+  char llbuff[4][22];
+
+  malloc_zone_statistics(nullptr, &info);
+  printf("\nMemory status:\n\
+Total allocated space:                   %s\n\
+Total free space:                        %s\n\
+Global memory allocated by server:       %s\n\
+Memory allocated by threads:             %s\n",
+         llstr(info.size_allocated, llbuff[0]),
+         llstr((info.size_allocated - info.size_in_use), llbuff[1]),
+         llstr(tmp.global_memory_used, llbuff[2]),
+         llstr(tmp.local_memory_used, llbuff[3]));
 #endif
 
 #ifdef HAVE_EVENT_SCHEDULER