On Fri, May 27, 2016 at 06:10:26AM +0000, Luke Small wrote: > Pledge does something odd, that I don't understand by reading the man page. > It trips the system-call: SYS_PROFIL (44) when it ends its run in > codeblocks IDE when profiling is enabled. Can I enable a pledge setting > that enables this to complete? Is there a security reason that pledge is > disabling profiling?
Currently, profil(2) syscall isn't allowed in a pledged program. We had a previous discussion about that before (but I don't recall if it was on public mailing-list or not). The reason is pledge(2) allows only a subset of syscalls to be called. For now, as workaround, you could build the program you want to profil with: cc -g -D'pledge(pr,pa)=_nopledge' This trick *should* work: the pledge definition in unistd.h will be "changed" to variable declaration, and the pledge call will be "changed" to access to the variable. I hope it helps. -- Sebastien Marie
