[Valgrind-users] Needs Technical Documentation of MemCheck

Hi all, I want to modify MemCheck to add one more feature to meet my own need. Yet I can't find enough technical documents to support that. And it is hard to look over source code to understand the mechanism. I have read the manuals of Valgrind and MemCheck, yet they lack enough details and

[Valgrind-users] IR help

Hi all, I learned valgrind for several weeks and now I want to write my tool. I want to keep the track of pointers derived from heap block, which is similar to exp-ptrCheck. While it is hard for me to understand the IR representations of valgrind. I checked PtrCheck's instrumentation function

[Valgrind-users] Intercepts all returns of functions

Hi all, I want to instrument on every return of every functions. That is to say, I want to do something just before the return of functions and also do something after the return of functions. I know some simple instrumentations on IRs, yet I have no idea how to implement that instrumentation.

[Valgrind-users] exp-PtrCheck mechanism

Hi all, Recently I am trying to understand the mechanism of ptrcheck, which can detect the incorrect heap reference. There is one statements in manual, Ptrcheck keeps track of which heap block (if any) it was derived from. I thought that it means every pointer has an associated struct (or

[Valgrind-users] Pointer related questions

Hi all, I am designing a tool based on valgrind. I saw in store and load IR instructions the addr and data are usually IRTemp type. And if I tried to print them, it only printed the t1, t2 or something like that in the cmd. I want to know the exact content contained in those temps, how can I