vppinfra: vector allocator rework

- support of in-place growth of vectors (if there is available space next to
  existing alloc)
- drops the need for alloc_aligned_at_offset from memory allocator,
  which allows easier swap to different memory allocator and reduces
  malloc overhead
- rework of pool and vec macros to inline functions to improve debuggability
- fix alignment - in many cases macros were not using native alignment
  of the particular datatype. Explicitly setting alignment with XXX_aligned()
  versions of the macro is not needed anymore in > 99% of cases
- fix ASAN usage
- avoid use of vector of voids, this was root cause of several bugs
  found in vec_* and pool_* function where sizeof() was used on voids
  instead of real vector data type
- introduce minimal alignment which is currently 8 bytes, vectors will
  be always aligned at least to that value (underlay allocator actually always
  provide 16-byte aligned allocs)

Type: improvement
Change-Id: I20f4b081bb13bbf7bc0ace85cc4e301787f12fdf
Signed-off-by: Damjan Marion <damarion@cisco.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/src/vppinfra/heap.c b/src/vppinfra/heap.c
index bc3e8cb79c9..47b6cf53214 100644
--- a/src/vppinfra/heap.c
+++ b/src/vppinfra/heap.c
@@ -422,10 +422,8 @@ _heap_alloc (void *v,
 
       h = heap_header (v);
       if (!v || !(h->flags & HEAP_IS_STATIC))
-	v = _vec_resize (v,
-			 align_size,
-			 (offset + align_size) * elt_bytes,
-			 sizeof (h[0]), HEAP_DATA_ALIGN);
+	v = _vec_realloc (v, offset + align_size, elt_bytes, sizeof (h[0]),
+			  HEAP_DATA_ALIGN, 0);
       else
 	_vec_len (v) += align_size;