/* EXPORTED */
void VG_(sigframe_create)( ThreadId tid,
Addr sp_top_of_frame,
const vki_siginfo_t *siginfo,
const struct vki_ucontext *siguc,
void *handler,
UInt flags,
const vki_sigset_t *mask,
void *restorer )
{
Addr sp;
ThreadState* tst = VG_(get_ThreadState)(tid);
if (flags & VKI_SA_SIGINFO)
sp = build_rt_sigframe(tst, sp_top_of_frame, siginfo, siguc,
flags, mask, restorer);
else
sp = build_sigframe(tst, sp_top_of_frame, siginfo, siguc,
flags, mask, restorer);
/* Set the thread so it will next run the handler. */
VG_(set_SP)(tid, sp);
VG_TRACK( post_reg_write, Vg_CoreSignal, tid, VG_O_STACK_PTR, sizeof(Addr));
tst->arch.vex.guest_IA = (Addr) handler;
/* We might have interrupted a repeating instruction that uses the guest
counter. Since our VEX requires that a new instruction will see a
guest counter == 0, we have to set it here. The old value will be
restored by restore_vg_sigframe. */
tst->arch.vex.guest_counter = 0;
/* This thread needs to be marked runnable, but we leave that the
caller to do. */
}
void VG_(sigframe_create)( ThreadId tid,
Addr esp_top_of_frame,
const vki_siginfo_t *siginfo,
const struct vki_ucontext *siguc,
void *handler,
UInt flags,
const vki_sigset_t *mask,
void *restorer )
{
Addr esp;
ThreadState* tst = VG_(get_ThreadState)(tid);
if (flags & VKI_SA_SIGINFO)
esp = build_rt_sigframe(tst, esp_top_of_frame, siginfo, siguc,
flags, mask, restorer);
else
esp = build_sigframe(tst, esp_top_of_frame, siginfo, siguc,
flags, mask, restorer);
VG_(set_SP)(tid, esp);
VG_TRACK( post_reg_write, Vg_CoreSignal, tid, VG_O_STACK_PTR, sizeof(Addr));
tst->arch.vex.guest_EIP = (Addr) handler;
if (0)
VG_(printf)("pushed signal frame; %%ESP now = %#lx, "
"next %%EIP = %#x, status=%d\n",
esp, tst->arch.vex.guest_EIP, tst->status);
}
void VG_(sigframe_create)( ThreadId tid,
Addr rsp_top_of_frame,
const vki_siginfo_t *siginfo,
const struct vki_ucontext *siguc,
void *handler,
UInt flags,
const vki_sigset_t *mask,
void *restorer )
{
Addr rsp;
struct sigframe *frame;
ThreadState* tst = VG_(get_ThreadState)(tid);
rsp = build_sigframe(tst, rsp_top_of_frame, siginfo, siguc, handler,
flags, mask, restorer);
frame = (struct sigframe *)rsp;
/* Set the thread so it will next run the handler. */
/* tst->m_rsp = rsp; also notify the tool we've updated RSP */
VG_(set_SP)(tid, rsp);
VG_TRACK( post_reg_write, Vg_CoreSignal, tid, VG_O_STACK_PTR, sizeof(Addr));
//VG_(printf)("handler = %p\n", handler);
tst->arch.vex.guest_RIP = (Addr) handler;
tst->arch.vex.guest_RDI = (ULong) siginfo->si_signo;
tst->arch.vex.guest_RSI = (Addr) &frame->sigInfo;
tst->arch.vex.guest_RDX = (Addr) &frame->uContext;
/* This thread needs to be marked runnable, but we leave that the
caller to do. */
}
/* EXPORTED */
void VG_(sigframe_create)( ThreadId tid,
Addr esp_top_of_frame,
const vki_siginfo_t *siginfo,
const struct vki_ucontext *siguc,
void *handler,
UInt flags,
const vki_sigset_t *mask,
void *restorer )
{
Addr esp;
ThreadState* tst = VG_(get_ThreadState)(tid);
if (flags & VKI_SA_SIGINFO)
esp = build_rt_sigframe(tst, esp_top_of_frame, siginfo, siguc,
handler, flags, mask, restorer);
else
esp = build_sigframe(tst, esp_top_of_frame, siginfo, siguc,
handler, flags, mask, restorer);
/* Set the thread so it will next run the handler. */
/* tst->m_esp = esp; also notify the tool we've updated ESP */
VG_(set_SP)(tid, esp);
VG_TRACK( post_reg_write, Vg_CoreSignal, tid, VG_O_STACK_PTR, sizeof(Addr));
//VG_(printf)("handler = %p\n", handler);
tst->arch.vex.guest_EIP = (Addr) handler;
/* This thread needs to be marked runnable, but we leave that the
caller to do. */
if (0)
VG_(printf)("pushed signal frame; %%ESP now = %#lx, "
"next %%EIP = %#x, status=%d\n",
esp, tst->arch.vex.guest_EIP, tst->status);
}
/* EXPORTED */
void VG_(sigframe_create)( ThreadId tid,
Bool on_altstack,
Addr sp_top_of_frame,
const vki_siginfo_t *siginfo,
const struct vki_ucontext *siguc,
void *handler,
UInt flags,
const vki_sigset_t *mask,
void *restorer )
{
ThreadState *tst;
Addr sp = sp_top_of_frame;
Int sigNo = siginfo->si_signo;
UInt size;
tst = VG_(get_ThreadState)(tid);
size = sizeof(struct rt_sigframe);
sp -= size;
sp = VG_ROUNDDN(sp, 16);
if (! ML_(sf_maybe_extend_stack)(tst, sp, size, flags))
return; // Give up. No idea if this is correct
struct rt_sigframe *rsf = (struct rt_sigframe *)sp;
/* Track our writes to siginfo */
VG_TRACK( pre_mem_write, Vg_CoreSignal, tst->tid, /* VVVVV */
"signal handler siginfo", (Addr)rsf,
offsetof(struct rt_sigframe, sig));
VG_(memcpy)(&rsf->info, siginfo, sizeof(vki_siginfo_t));
if (sigNo == VKI_SIGILL && siginfo->si_code > 0) {
rsf->info._sifields._sigfault._addr
= (Addr*)(tst)->arch.vex.guest_PC;
}
VG_TRACK( post_mem_write, Vg_CoreSignal, tst->tid, /* ^^^^^ */
(Addr)rsf, offsetof(struct rt_sigframe, sig));
build_sigframe(tst, &rsf->sig, siginfo, siguc,
handler, flags, mask, restorer);
tst->arch.vex.guest_X1 = (Addr)&rsf->info;
tst->arch.vex.guest_X2 = (Addr)&rsf->sig.uc;
VG_(set_SP)(tid, sp);
VG_TRACK( post_reg_write, Vg_CoreSignal, tid, VG_O_STACK_PTR,
sizeof(Addr));
tst->arch.vex.guest_X0 = sigNo;
if (flags & VKI_SA_RESTORER)
tst->arch.vex.guest_X30 = (Addr)restorer;
else
tst->arch.vex.guest_X30
= (Addr)&VG_(arm64_linux_SUBST_FOR_rt_sigreturn);
tst->arch.vex.guest_PC = (Addr)handler;
}
/* EXPORTED */
void VG_(sigframe_create)( ThreadId tid,
Addr sp_top_of_frame,
const vki_siginfo_t *siginfo,
const struct vki_ucontext *siguc,
void *handler,
UInt flags,
const vki_sigset_t *mask,
void *restorer )
{
// struct vg_sig_private *priv;
Addr sp = sp_top_of_frame;
ThreadState *tst;
Int sigNo = siginfo->si_signo;
// Addr faultaddr;
UInt size;
tst = VG_(get_ThreadState)(tid);
size = flags & VKI_SA_SIGINFO ? sizeof(struct rt_sigframe) :
sizeof(struct sigframe);
sp -= size;
sp = VG_ROUNDDN(sp, 16);
if(!extend(tst, sp, size))
I_die_here; // XXX Incorrect behavior
if (flags & VKI_SA_SIGINFO){
struct rt_sigframe *rsf = (struct rt_sigframe *)sp;
/* Track our writes to siginfo */
VG_TRACK( pre_mem_write, Vg_CoreSignal, tst->tid, /* VVVVV */
"signal handler siginfo", (Addr)rsf,
offsetof(struct rt_sigframe, sig));
VG_(memcpy)(&rsf->info, siginfo, sizeof(vki_siginfo_t));
if(sigNo == VKI_SIGILL && siginfo->si_code > 0) {
rsf->info._sifields._sigfault._addr = (Addr *) (tst)->arch.vex.guest_R12; /* IP */
}
VG_TRACK( post_mem_write, Vg_CoreSignal, tst->tid, /* ^^^^^ */
(Addr)rsf, offsetof(struct rt_sigframe, sig));
build_sigframe(tst, &rsf->sig, siginfo, siguc,
handler, flags, mask, restorer);
tst->arch.vex.guest_R1 = (Addr)&rsf->info;
tst->arch.vex.guest_R2 = (Addr)&rsf->sig.uc;
}
else {
