[RFC PATCH v2 01/48] malloc: Support testing with realloc()

[Sughosh Ganu]

From: Simon Glass <sjg at chromium.org>

At present in tests it is possible to cause an out-of-memory condition
with malloc() but not realloc(). Add support to realloc() too, so code
which uses that function can be tested.

Signed-off-by: Simon Glass <sjg at chromium.org>
Signed-off-by: Sughosh Ganu <sughosh.ganu at linaro.org>
---
 common/dlmalloc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/common/dlmalloc.c b/common/dlmalloc.c
index 9549c59f35..65b130fabc 100644
--- a/common/dlmalloc.c
+++ b/common/dlmalloc.c
@@ -1758,6 +1758,10 @@ Void_t* rEALLOc_impl(oldmem, bytes) Void_t* oldmem; size_t bytes;
 		panic("pre-reloc realloc() is not supported");
 	}
 #endif
+  if (CONFIG_IS_ENABLED(UNIT_TEST) && malloc_testing) {
+    if (--malloc_max_allocs < 0)
+      return NULL;
+  }
 
   newp    = oldp    = mem2chunk(oldmem);
   newsize = oldsize = chunksize(oldp);
-- 
2.34.1