int main()
{
char *p1;
char *p2;
int i;
p1 = Allocate(SIZE, ALIGN);
p2 = Allocate(SIZE, ALIGN);
printf("p1 = %p, p2 = %p\n", p1, p2);
for (i = 0; i < SIZE; i++)
p1[i] = "abcdefghijklmnopqrstuvwxyz"[i%26];
memcpy(p2, p1, SIZE);
CheckBuf(p2, SIZE);
memset(p2, 0, SIZE);
CheckZeroBuf(p2, SIZE);
/*
* Do a memory copy using XMM registers. Verifies that Pin properly
* saves and restores XMM registers when the SEGV is intercepted.
*/
CopyWithXmm(p2, p1, SIZE);
CheckBuf(p2, SIZE);
return 0;
}
static void Handle1(int sig)
{
SigCount++;
CopyWithXmm(SigBuf2, SigBuf1, SIZESMALL);
/*
* After a while, switch to using a "siginfo" handler. This exercises different
* signal emulation paths within Pin.
*/
if (SigCount > SIGCOUNT/2)
{
struct sigaction sigact;
sigact.sa_sigaction = Handle2;
sigact.sa_flags = SA_SIGINFO;
sigemptyset(&sigact.sa_mask);
if (sigaction(SIGVTALRM, &sigact, 0) == -1)
{
fprintf(stderr, "Unable to reset handler\n");
exit(1);
}
}
}
static void Handle(int sig, siginfo_t *i, void *vctxt)
{
ucontext_t *ctxt = vctxt;
/* Fix the illegal memory address access */
#if defined(TARGET_IA32)
#if defined(TARGET_MAC)
ctxt->uc_mcontext->__ss.__eax = (unsigned long)&Glob;
#else
ctxt->uc_mcontext.gregs[REG_EAX] = (unsigned long)&Glob;
#endif
#elif defined(TARGET_IA32E)
#if defined(TARGET_BSD)
ctxt->uc_mcontext.mc_rax = (unsigned long)&Glob;
#elif defined(TARGET_MAC)
ctxt->uc_mcontext->__ss.__rax = (unsigned long)&Glob;
#else
ctxt->uc_mcontext.gregs[REG_RAX] = (unsigned long)&Glob;
#endif
#endif
/* This changes the values of the XMM registers */
CopyWithXmm(SigBuf2, SigBuf1, SIZE);
}
static void Handle2(int sig, siginfo_t *i, void *v)
{
SigCount++;
CopyWithXmm(SigBuf2, SigBuf1, SIZESMALL);
}
