#include <iostream>
#include <signal.h>
#include <ucontext.h>

#ifdef REG_EIP
#define REG_PC REG_EIP
#else
#define REG_PC REG_RIP
#endif

void sigHandler(int signum, siginfo_t* siginfo, void* context_)
{
    ucontext_t* context=static_cast<ucontext_t*>(context_);
    auto& pc=context->uc_mcontext.gregs[REG_PC];
    pc+=2; // skip the instruction leading to trap ("idiv reg" is 2 bytes long)
}

int main()
{
    struct sigaction act={0};
    act.sa_sigaction=sigHandler;
    act.sa_flags=SA_SIGINFO;
    sigaction(SIGFPE, &act, NULL);
    std::cerr << "Dividing by zero...\n";
    int zero=0;
    __asm__ __volatile__("idiv %0"::"r"(zero));
    std::cerr << "Still alive\n";
}