malloc: Add _Malloc_System_state()

Replace malloc_is_system_state_OK() with _Malloc_System_state() to allow
early allocations, e.g. in bsp_start().  Here the _Thread_Executing is
NULL, thus an _API_Mutex_Lock() would lead to a NULL pointer access.

Move malloc() support code to general case
rtems_heap_allocate_aligned_with_boundary().  Use
rtems_heap_allocate_aligned_with_boundary() to avoid duplicated code.

1 files changed, 9 insertions, 6 deletions

diff --git a/cpukit/libcsupport/src/malloc_p.h b/cpukit/libcsupport/src/malloc_p.h
index 6609526fa8..127f22bac4 100644
--- a/cpukit/libcsupport/src/malloc_p.h
+++ b/cpukit/libcsupport/src/malloc_p.h
@@ -17,12 +17,15 @@
 extern "C" {
 #endif /* __cplusplus */
 
-/*
- *  Process deferred free operations
- */
-bool malloc_is_system_state_OK(void);
-void malloc_deferred_frees_process(void);
-void malloc_deferred_free(void *);
+typedef enum {
+  MALLOC_SYSTEM_STATE_NORMAL,
+  MALLOC_SYSTEM_STATE_NO_PROTECTION,
+  MALLOC_SYSTEM_STATE_NO_ALLOCATION
+} Malloc_System_state;
+
+Malloc_System_state _Malloc_System_state( void );
+
+void _Malloc_Deferred_free( void * );
 
 #ifdef __cplusplus
 }