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3.6.4 malloc()-related Options

For tools that use their own version of ‘malloc()’ (e.g. Memcheck and Massif), the following options apply.

• --alignment=<number> [default: 8] By default Valgrind's malloc(), realloc(), etc, return 8-byte aligned addresses. This is standard for most processors. However, some programs might assume that malloc() et al return 16-byte or more aligned memory. The supplied value must be between 8 and 4096 inclusive, and must be a power of two.