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// RUN: %clangxx -O0 %s -o %t && %run %t
#include <assert.h>
#include <signal.h>
#include <stdio.h>
#include <sys/ptrace.h>
#include <sys/types.h>
#include <sys/user.h>
#include <sys/wait.h>
#include <unistd.h>
int main(void) {
pid_t pid;
pid = fork();
if (pid == 0) { // child
ptrace(PTRACE_TRACEME, 0, NULL, NULL);
execl("/bin/true", "true", NULL);
} else {
wait(NULL);
user_regs_struct regs;
int res;
res = ptrace(PTRACE_GETREGS, pid, NULL, ®s);
assert(!res);
if (regs.rip)
printf("%zx\n", regs.rip);
user_fpregs_struct fpregs;
res = ptrace(PTRACE_GETFPREGS, pid, NULL, &fpregs);
assert(!res);
if (fpregs.mxcsr)
printf("%x\n", fpregs.mxcsr);
siginfo_t siginfo;
res = ptrace(PTRACE_GETSIGINFO, pid, NULL, &siginfo);
assert(!res);
assert(siginfo.si_pid == pid);
ptrace(PTRACE_CONT, pid, NULL, NULL);
wait(NULL);
}
return 0;
}
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