malloc and family were not declared with __attribute__((alloc_size)).
This was (sometimes) preventing FORTIFY_SOURCE related functions
from knowing the size of the buffer it's dealing with, inhibiting
FORTIFY_SOURCE protections.
Add __attribute__((alloc_size))
Information about the alloc_size attribute can be found
at http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html
Change-Id: Ia2f0a445f0170a7325f69259b5e7fb35a9f14921
The function should take a 'const void*' parameter, instead of 'void*'.
Note that the implementation in upstream-dlmalloc/malloc.c already does
this.
For context, see http://b.android.com/55725
Change-Id: Iefd55cdb8996699189e0545f9195972490306227
Move dlmalloc code to upstream-dlmalloc to make pulling upstream changes
easier.
Declare pvalloc and malloc_usable_size routines present in malloc.h but with
missing implementations. Remove other functions from malloc.h that have
no implementation nor use in Android.
Change-Id: Ia6472ec6cbebc9ad1ef99f4669de9d33fcc2efb4
According to
http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html
realloc should NOT be marked with __attribute__((malloc)). Quoting:
realloc-like functions do not have this property as the memory
pointed to does not have undefined content.
For reference, __mallocfunc is defined in sys/cdefs.h as:
#define __mallocfunc __attribute__((malloc))
Change-Id: I56083542ba92e4608dd7c55fb5596a138eb50cc9
