|
|
|
@ -616,9 +616,13 @@ interruptible (DWORD pc, int testvalid = 0)
|
|
|
|
|
return res;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static void __stdcall interrupt_setup (int sig, void *handler, DWORD retaddr,
|
|
|
|
|
DWORD *retaddr_on_stack,
|
|
|
|
|
struct sigaction& siga)
|
|
|
|
|
__attribute__((regparm(3)));
|
|
|
|
|
static void __stdcall
|
|
|
|
|
interrupt_setup (int sig, struct sigaction& siga, void *handler,
|
|
|
|
|
DWORD retaddr, DWORD *retaddr_on_stack)
|
|
|
|
|
interrupt_setup (int sig, void *handler, DWORD retaddr, DWORD *retaddr_on_stack,
|
|
|
|
|
struct sigaction& siga)
|
|
|
|
|
{
|
|
|
|
|
sigsave.retaddr = retaddr;
|
|
|
|
|
sigsave.retaddr_on_stack = retaddr_on_stack;
|
|
|
|
@ -630,10 +634,11 @@ interrupt_setup (int sig, struct sigaction& siga, void *handler,
|
|
|
|
|
sigsave.saved_errno = -1; // Flag: no errno to save
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static bool interrupt_now (CONTEXT *, int, void *, struct sigaction&) __attribute__((regparm(3)));
|
|
|
|
|
static bool
|
|
|
|
|
interrupt_now (CONTEXT *ctx, int sig, struct sigaction& siga, void *handler)
|
|
|
|
|
interrupt_now (CONTEXT *ctx, int sig, void *handler, struct sigaction& siga)
|
|
|
|
|
{
|
|
|
|
|
interrupt_setup (sig, siga, handler, ctx->Eip, 0);
|
|
|
|
|
interrupt_setup (sig, handler, ctx->Eip, 0, siga);
|
|
|
|
|
ctx->Eip = (DWORD) sigdelayed;
|
|
|
|
|
SetThreadContext (myself->getthread2signal (), ctx); /* Restart the thread */
|
|
|
|
|
return 1;
|
|
|
|
@ -665,8 +670,9 @@ signal_fixup_after_exec (bool isspawn)
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int interrupt_on_return (sigthread *, int, void *, struct sigaction&) __attribute__((regparm(3)));
|
|
|
|
|
static int
|
|
|
|
|
interrupt_on_return (sigthread *th, int sig, struct sigaction& siga, void *handler)
|
|
|
|
|
interrupt_on_return (sigthread *th, int sig, void *handler, struct sigaction& siga)
|
|
|
|
|
{
|
|
|
|
|
int i;
|
|
|
|
|
DWORD ebp = th->frame;
|
|
|
|
@ -681,7 +687,7 @@ interrupt_on_return (sigthread *th, int sig, struct sigaction& siga, void *handl
|
|
|
|
|
DWORD *addr_retaddr = ((DWORD *)thestack.sf.AddrFrame.Offset) + 1;
|
|
|
|
|
if (*addr_retaddr == thestack.sf.AddrReturn.Offset)
|
|
|
|
|
{
|
|
|
|
|
interrupt_setup (sig, siga, handler, *addr_retaddr, addr_retaddr);
|
|
|
|
|
interrupt_setup (sig, handler, *addr_retaddr, addr_retaddr, siga);
|
|
|
|
|
*addr_retaddr = (DWORD) sigdelayed;
|
|
|
|
|
}
|
|
|
|
|
return 1;
|
|
|
|
@ -699,8 +705,9 @@ set_sig_errno (int e)
|
|
|
|
|
// sigproc_printf ("errno %d", e);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
static int call_handler (int, void *, struct sigaction&) __attribute__((regparm(3)));
|
|
|
|
|
static int
|
|
|
|
|
call_handler (int sig, struct sigaction& siga, void *handler)
|
|
|
|
|
call_handler (int sig, void *handler, struct sigaction& siga)
|
|
|
|
|
{
|
|
|
|
|
CONTEXT cx;
|
|
|
|
|
bool interrupted = 0;
|
|
|
|
@ -778,12 +785,12 @@ call_handler (int sig, struct sigaction& siga, void *handler)
|
|
|
|
|
try_to_interrupt:
|
|
|
|
|
if (th)
|
|
|
|
|
{
|
|
|
|
|
interrupted = interrupt_on_return (th, sig, siga, handler);
|
|
|
|
|
interrupted = interrupt_on_return (th, sig, handler, siga);
|
|
|
|
|
if (!interrupted)
|
|
|
|
|
LeaveCriticalSection (&th->lock);
|
|
|
|
|
}
|
|
|
|
|
else if (interruptible (cx.Eip))
|
|
|
|
|
interrupted = interrupt_now (&cx, sig, siga, handler);
|
|
|
|
|
interrupted = interrupt_now (&cx, sig, handler, siga);
|
|
|
|
|
else
|
|
|
|
|
break;
|
|
|
|
|
}
|
|
|
|
@ -979,7 +986,7 @@ stop:
|
|
|
|
|
dosig:
|
|
|
|
|
/* Dispatch to the appropriate function. */
|
|
|
|
|
sigproc_printf ("signal %d, about to call %p", sig, thissig.sa_handler);
|
|
|
|
|
rc = call_handler (sig, thissig, handler);
|
|
|
|
|
rc = call_handler (sig, handler, thissig);
|
|
|
|
|
|
|
|
|
|
done:
|
|
|
|
|
sigproc_printf ("returning %d", rc);
|
|
|
|
|