search for: __wrap_malloc

Hi, I would like to wrap some of the library functions such as malloc() into for example: malloc_wrapper(int size) { malloc(size+4); //call the real malloc here } and have all uses of malloc replaced with malloc_wrapper. Is there a way to do that? -- ---------------- Barbora Murinová The University of Edinburgh SK: +421905718390 <+421%20905%20718%20390> UK: +447477833795

...ibc, and all references to malloc will bind to it. Adding alternate names won’t stop that binding. Another way to do wrapping (using malloc as the example) is to: 1) introduce (pre-Resolver) an atom (call it X) that is named __real_malloc and has references: 1)to undefined _malloc and 2)undefined __wrap_malloc. 2) add a Pass which get X and looks at the reference to finds what the two references now point to (malloc and __wrap_malloc). It then walks the whole graph and changes references that point to malloc to point to __wrap_malloc instead, and any references to __real_malloc to malloc. > >...

Hi Nick, This would work only if an alias is another name for the same symbol(weak symbols). If what is being aliased is another function definition, which is a non zero sized atom, aliasing will not work. I was thinking to model this for ELF for the below functionalities :- a) __wrap For example : --wrap fn What I plan to do here is, create a undefined function fn atom create a defined