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, 0 deletions

diff --git a/src/vppinfra/dlmalloc.h b/src/vppinfra/dlmalloc.h
index b8adf74831d..5fcaf7c30ca 100644
--- a/src/vppinfra/dlmalloc.h
+++ b/src/vppinfra/dlmalloc.h
@@ -1447,6 +1447,8 @@ DLMALLOC_EXPORT int mspace_trim(mspace msp, size_t pad);
 */
 DLMALLOC_EXPORT int mspace_mallopt(int, int);
 
+DLMALLOC_EXPORT void* mspace_realloc_in_place (mspace msp, void *oldmem, size_t bytes);
+
 DLMALLOC_EXPORT void* mspace_get_aligned (mspace msp,
                                           unsigned long n_user_data_bytes,
                                           unsigned long align,