From: Ley Foon Tan Date: Fri, 18 May 2018 10:03:12 +0000 (+0800) Subject: malloc: Use malloc simple before malloc is fully initialized in memalign() X-Git-Url: http://git.dujemihanovic.xyz/login.html?a=commitdiff_plain;h=ee038c58d5196dc2eb2be7e08e766c50a7bc2619;p=u-boot.git malloc: Use malloc simple before malloc is fully initialized in memalign() Follow implementation in mALLOc(). Check GD_FLG_FULL_MALLOC_INIT flag and use malloc_simple if GD_FLG_FULL_MALLOC_INIT is unset. Adjust the malloc bytes to align with the requested alignment. The original memalign() function will access mchunkptr struct to adjust the alignment if there is misalignment happen, but mchunkptr struct is not being initialized before full malloc is initialized. This cause the system crash. Signed-off-by: Ley Foon Tan Reviewed-by: Marek Vasut --- diff --git a/common/dlmalloc.c b/common/dlmalloc.c index b395eefbf8..edaad299bb 100644 --- a/common/dlmalloc.c +++ b/common/dlmalloc.c @@ -1891,6 +1891,13 @@ Void_t* mEMALIGn(alignment, bytes) size_t alignment; size_t bytes; if ((long)bytes < 0) return NULL; +#if CONFIG_VAL(SYS_MALLOC_F_LEN) + if (!(gd->flags & GD_FLG_FULL_MALLOC_INIT)) { + nb = roundup(bytes, alignment); + return malloc_simple(nb); + } +#endif + /* If need less alignment than we give anyway, just relay to malloc */ if (alignment <= MALLOC_ALIGNMENT) return mALLOc(bytes);