Hi Everyone, I have a cross platform project that uses a fair amount on inline assembly. The project is clean under Valgrind, Undefined Behavior sanitizer, Address sanitizer and even Microsoft's Enterprise Analysis and Coverity. However...
A few Linux and Apple users report unexpected results and I am having trouble reproducing the issue. I have not been able to duplicate it, even, say on Debian Sid (unstable) with the bleeding edge GCC. Its been tough to narrow down, but it appears to be related to the latest GCC and possibly Clang compilers. I also suspect it might be related to the use of PIC. When PIC is in effect, the Global Offset Table (GOT) is utilized. Under the Linux ABI, that means EBX/RBX must be preserved because it holds the pointer to the GOT. Is it possible to use Valgrind to detect unexpected changes to the GOT pointer when PIC is in effect? Or put another way, is it possible to detect unexpected changes to EBX/RBX? (I know its not an easy request. My apologies for asking). Thanks in Advance. ------------------------------------------------------------------------------ _______________________________________________ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
