* In that case, the Lisp-level handler is stored in interrupt_handlers[..]
* and interrupt_low_level_handlers[..] is cleared.
*
- * However, some signals need special handling, e.g.
+ * However, some signals need special handling, e.g.
*
* o the SIGSEGV (for e.g. Linux) or SIGBUS (for e.g. FreeBSD) used by the
* garbage collector to detect violations of write protection,
* o the SIGTRAP (Linux/Alpha) which Lisp code uses to handle breakpoints,
* pseudo-atomic sections, and some classes of error (e.g. "function
* not defined"). This never goes anywhere near the Lisp handlers at all.
- * See runtime/alpha-arch.c and code/signal.lisp
- *
+ * See runtime/alpha-arch.c and code/signal.lisp
+ *
* - WHN 20000728, dan 20010128 */
void run_deferred_handler(struct interrupt_data *data, void *v_context) ;
-static void store_signal_data_for_later (struct interrupt_data *data,
- void *handler, int signal,
- siginfo_t *info,
- os_context_t *context);
+static void store_signal_data_for_later (struct interrupt_data *data,
+ void *handler, int signal,
+ siginfo_t *info,
+ os_context_t *context);
boolean interrupt_maybe_gc_int(int signal, siginfo_t *info, void *v_context);
void sigaddset_blockable(sigset_t *s)
lose("interrupts not enabled");
if (
#if !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
- (!foreign_function_call_active) &&
+ (!foreign_function_call_active) &&
#endif
- arch_pseudo_atomic_atomic(context))
+ arch_pseudo_atomic_atomic(context))
lose ("in pseudo atomic section");
}
* mask ought to be clear anyway most of the time, but may be non-zero
* if we were interrupted e.g. while waiting for a queue. */
-void reset_signal_mask ()
+void reset_signal_mask ()
{
sigset_t new;
sigemptyset(&new);
* utility routines used by various signal handlers
*/
-void
+void
build_fake_control_stack_frames(struct thread *th,os_context_t *context)
{
#ifndef LISP_FEATURE_C_STACK_IS_CONTROL_STACK
-
+
lispobj oldcont;
/* Build a fake stack frame or frames */
current_control_frame_pointer =
- (lispobj *)(*os_context_register_addr(context, reg_CSP));
+ (lispobj *)(*os_context_register_addr(context, reg_CSP));
if ((lispobj *)(*os_context_register_addr(context, reg_CFP))
- == current_control_frame_pointer) {
+ == current_control_frame_pointer) {
/* There is a small window during call where the callee's
* frame isn't built yet. */
if (lowtag_of(*os_context_register_addr(context, reg_CODE))
- == FUN_POINTER_LOWTAG) {
+ == FUN_POINTER_LOWTAG) {
/* We have called, but not built the new frame, so
* build it for them. */
current_control_frame_pointer[0] =
- *os_context_register_addr(context, reg_OCFP);
+ *os_context_register_addr(context, reg_OCFP);
current_control_frame_pointer[1] =
- *os_context_register_addr(context, reg_LRA);
+ *os_context_register_addr(context, reg_LRA);
current_control_frame_pointer += 8;
/* Build our frame on top of it. */
oldcont = (lispobj)(*os_context_register_addr(context, reg_CFP));
current_control_frame_pointer[0] = oldcont;
current_control_frame_pointer[1] = NIL;
current_control_frame_pointer[2] =
- (lispobj)(*os_context_register_addr(context, reg_CODE));
+ (lispobj)(*os_context_register_addr(context, reg_CODE));
#endif
}
/* Get current Lisp state from context. */
#ifdef reg_ALLOC
dynamic_space_free_pointer =
- (lispobj *)(*os_context_register_addr(context, reg_ALLOC));
+ (lispobj *)(*os_context_register_addr(context, reg_ALLOC));
#if defined(LISP_FEATURE_ALPHA)
if ((long)dynamic_space_free_pointer & 1) {
- lose("dead in fake_foreign_function_call, context = %x", context);
+ lose("dead in fake_foreign_function_call, context = %x", context);
}
#endif
#endif
#ifdef reg_BSP
current_binding_stack_pointer =
- (lispobj *)(*os_context_register_addr(context, reg_BSP));
+ (lispobj *)(*os_context_register_addr(context, reg_BSP));
#endif
build_fake_control_stack_frames(thread,context);
/* Do dynamic binding of the active interrupt context index
* and save the context in the context array. */
context_index =
- fixnum_value(SymbolValue(FREE_INTERRUPT_CONTEXT_INDEX,thread));
-
+ fixnum_value(SymbolValue(FREE_INTERRUPT_CONTEXT_INDEX,thread));
+
if (context_index >= MAX_INTERRUPTS) {
lose("maximum interrupt nesting depth (%d) exceeded", MAX_INTERRUPTS);
}
bind_variable(FREE_INTERRUPT_CONTEXT_INDEX,
- make_fixnum(context_index + 1),thread);
+ make_fixnum(context_index + 1),thread);
thread->interrupt_contexts[context_index] = context;
}
/* blocks all blockable signals. If you are calling from a signal handler,
- * the usual signal mask will be restored from the context when the handler
+ * the usual signal mask will be restored from the context when the handler
* finishes. Otherwise, be careful */
void
* signalling an internal error */
void
interrupt_internal_error(int signal, siginfo_t *info, os_context_t *context,
- boolean continuable)
+ boolean continuable)
{
lispobj context_sap = 0;
/* Allocate the SAP object while the interrupts are still
* disabled. */
if (internal_errors_enabled) {
- context_sap = alloc_sap(context);
+ context_sap = alloc_sap(context);
}
thread_sigmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
if (internal_errors_enabled) {
SHOW("in interrupt_internal_error");
#ifdef QSHOW
- /* Display some rudimentary debugging information about the
- * error, so that even if the Lisp error handler gets badly
- * confused, we have a chance to determine what's going on. */
- describe_internal_error(context);
+ /* Display some rudimentary debugging information about the
+ * error, so that even if the Lisp error handler gets badly
+ * confused, we have a chance to determine what's going on. */
+ describe_internal_error(context);
#endif
- funcall2(SymbolFunction(INTERNAL_ERROR), context_sap,
- continuable ? T : NIL);
+ funcall2(SymbolFunction(INTERNAL_ERROR), context_sap,
+ continuable ? T : NIL);
} else {
- describe_internal_error(context);
- /* There's no good way to recover from an internal error
- * before the Lisp error handling mechanism is set up. */
- lose("internal error too early in init, can't recover");
+ describe_internal_error(context);
+ /* There's no good way to recover from an internal error
+ * before the Lisp error handling mechanism is set up. */
+ lose("internal error too early in init, can't recover");
}
undo_fake_foreign_function_call(context); /* blocks signals again */
if (continuable) {
- arch_skip_instruction(context);
+ arch_skip_instruction(context);
}
}
the FPU control word from the context, as after the signal is
delivered we appear to have a null FPU control word. */
os_restore_fp_control(context);
-#endif
+#endif
handler = thread->interrupt_data->interrupt_handlers[signal];
if (ARE_SAME_HANDLER(handler.c, SIG_IGN)) {
- return;
+ return;
}
-
+
#if !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
were_in_lisp = !foreign_function_call_active;
if (were_in_lisp)
#ifdef QSHOW_SIGNALS
FSHOW((stderr,
- "/entering interrupt_handle_now(%d, info, context)\n",
- signal));
+ "/entering interrupt_handle_now(%d, info, context)\n",
+ signal));
#endif
if (ARE_SAME_HANDLER(handler.c, SIG_DFL)) {
- /* This can happen if someone tries to ignore or default one
- * of the signals we need for runtime support, and the runtime
- * support decides to pass on it. */
- lose("no handler for signal %d in interrupt_handle_now(..)", signal);
+ /* This can happen if someone tries to ignore or default one
+ * of the signals we need for runtime support, and the runtime
+ * support decides to pass on it. */
+ lose("no handler for signal %d in interrupt_handle_now(..)", signal);
} else if (lowtag_of(handler.lisp) == FUN_POINTER_LOWTAG) {
- /* Once we've decided what to do about contexts in a
- * return-elsewhere world (the original context will no longer
- * be available; should we copy it or was nobody using it anyway?)
- * then we should convert this to return-elsewhere */
+ /* Once we've decided what to do about contexts in a
+ * return-elsewhere world (the original context will no longer
+ * be available; should we copy it or was nobody using it anyway?)
+ * then we should convert this to return-elsewhere */
/* CMUCL comment said "Allocate the SAPs while the interrupts
- * are still disabled.". I (dan, 2003.08.21) assume this is
- * because we're not in pseudoatomic and allocation shouldn't
- * be interrupted. In which case it's no longer an issue as
- * all our allocation from C now goes through a PA wrapper,
- * but still, doesn't hurt */
+ * are still disabled.". I (dan, 2003.08.21) assume this is
+ * because we're not in pseudoatomic and allocation shouldn't
+ * be interrupted. In which case it's no longer an issue as
+ * all our allocation from C now goes through a PA wrapper,
+ * but still, doesn't hurt */
lispobj info_sap,context_sap = alloc_sap(context);
info_sap = alloc_sap(info);
thread_sigmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
#ifdef QSHOW_SIGNALS
- SHOW("calling Lisp-level handler");
+ SHOW("calling Lisp-level handler");
#endif
funcall3(handler.lisp,
- make_fixnum(signal),
- info_sap,
- context_sap);
+ make_fixnum(signal),
+ info_sap,
+ context_sap);
} else {
#ifdef QSHOW_SIGNALS
- SHOW("calling C-level handler");
+ SHOW("calling C-level handler");
#endif
/* Allow signals again. */
thread_sigmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
-
+
(*handler.c)(signal, info, void_context);
}
#ifdef QSHOW_SIGNALS
FSHOW((stderr,
- "/returning from interrupt_handle_now(%d, info, context)\n",
- signal));
+ "/returning from interrupt_handle_now(%d, info, context)\n",
+ signal));
#endif
}
boolean
maybe_defer_handler(void *handler, struct interrupt_data *data,
- int signal, siginfo_t *info, os_context_t *context)
+ int signal, siginfo_t *info, os_context_t *context)
{
struct thread *thread=arch_os_get_current_thread();
* atomic section inside a without-interrupts.
*/
if (SymbolValue(INTERRUPTS_ENABLED,thread) == NIL) {
- store_signal_data_for_later(data,handler,signal,info,context);
+ store_signal_data_for_later(data,handler,signal,info,context);
SetSymbolValue(INTERRUPT_PENDING, T,thread);
#ifdef QSHOW_SIGNALS
FSHOW((stderr,
"/maybe_defer_handler(%x,%d),thread=%ld: deferred\n",
(unsigned int)handler,signal,thread->os_thread));
#endif
- return 1;
- }
+ return 1;
+ }
/* a slightly confusing test. arch_pseudo_atomic_atomic() doesn't
* actually use its argument for anything on x86, so this branch
* may succeed even when context is null (gencgc alloc()) */
if (
#if !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
- (!foreign_function_call_active) &&
+ (!foreign_function_call_active) &&
#endif
- arch_pseudo_atomic_atomic(context)) {
- store_signal_data_for_later(data,handler,signal,info,context);
- arch_set_pseudo_atomic_interrupted(context);
+ arch_pseudo_atomic_atomic(context)) {
+ store_signal_data_for_later(data,handler,signal,info,context);
+ arch_set_pseudo_atomic_interrupted(context);
#ifdef QSHOW_SIGNALS
FSHOW((stderr,
"/maybe_defer_handler(%x,%d),thread=%ld: deferred(PA)\n",
(unsigned int)handler,signal,thread->os_thread));
#endif
- return 1;
+ return 1;
}
#ifdef QSHOW_SIGNALS
FSHOW((stderr,
static void
store_signal_data_for_later (struct interrupt_data *data, void *handler,
- int signal,
- siginfo_t *info, os_context_t *context)
+ int signal,
+ siginfo_t *info, os_context_t *context)
{
if (data->pending_handler)
lose("tried to overwrite pending interrupt handler %x with %x\n",
data->pending_handler = handler;
data->pending_signal = signal;
if(info)
- memcpy(&(data->pending_info), info, sizeof(siginfo_t));
+ memcpy(&(data->pending_info), info, sizeof(siginfo_t));
if(context) {
- /* the signal mask in the context (from before we were
- * interrupted) is copied to be restored when
- * run_deferred_handler happens. Then the usually-blocked
- * signals are added to the mask in the context so that we are
- * running with blocked signals when the handler returns */
- sigcopyset(&(data->pending_mask),os_context_sigmask_addr(context));
- sigaddset_blockable(os_context_sigmask_addr(context));
+ /* the signal mask in the context (from before we were
+ * interrupted) is copied to be restored when
+ * run_deferred_handler happens. Then the usually-blocked
+ * signals are added to the mask in the context so that we are
+ * running with blocked signals when the handler returns */
+ sigcopyset(&(data->pending_mask),os_context_sigmask_addr(context));
+ sigaddset_blockable(os_context_sigmask_addr(context));
}
}
struct interrupt_data *data=thread->interrupt_data;
#ifdef LISP_FEATURE_LINUX
os_restore_fp_control(context);
-#endif
+#endif
if(maybe_defer_handler(interrupt_handle_now,data,
- signal,info,context))
- return;
+ signal,info,context))
+ return;
interrupt_handle_now(signal, info, context);
#ifdef LISP_FEATURE_DARWIN
/* Work around G5 bug */
struct interrupt_data *data=thread->interrupt_data;
#ifdef LISP_FEATURE_LINUX
os_restore_fp_control(context);
-#endif
+#endif
if(maybe_defer_handler(low_level_interrupt_handle_now,data,
- signal,info,context))
- return;
+ signal,info,context))
+ return;
low_level_interrupt_handle_now(signal, info, context);
#ifdef LISP_FEATURE_DARWIN
/* Work around G5 bug */
struct thread *thread=arch_os_get_current_thread();
sigset_t ss;
int i;
-
+
/* need the context stored so it can have registers scavenged */
- fake_foreign_function_call(context);
+ fake_foreign_function_call(context);
sigemptyset(&ss);
for(i=1;i<NSIG;i++) sigaddset(&ss,i); /* Block everything. */
* stuff to detect and handle hitting the GC trigger
*/
-#ifndef LISP_FEATURE_GENCGC
+#ifndef LISP_FEATURE_GENCGC
/* since GENCGC has its own way to record trigger */
static boolean
gc_trigger_hit(int signal, siginfo_t *info, os_context_t *context)
{
if (current_auto_gc_trigger == NULL)
- return 0;
+ return 0;
else{
- void *badaddr=arch_get_bad_addr(signal,info,context);
- return (badaddr >= (void *)current_auto_gc_trigger &&
- badaddr <((void *)current_dynamic_space + DYNAMIC_SPACE_SIZE));
+ void *badaddr=arch_get_bad_addr(signal,info,context);
+ return (badaddr >= (void *)current_auto_gc_trigger &&
+ badaddr <((void *)current_dynamic_space + DYNAMIC_SPACE_SIZE));
}
}
#endif
#if !(defined(LISP_FEATURE_X86) || defined(LISP_FEATURE_X86_64))
void * fun=native_pointer(function);
void *code = &(((struct simple_fun *) fun)->code);
-#endif
+#endif
/* Build a stack frame showing `interrupted' so that the
* user's backtrace makes (as much) sense (as usual) */
addl $12,%esp
popal
popfl
- leave
- ret
+ leave
+ ret
* What we do here is set up the stack that call_into_lisp would
* expect to see if it had been called by this code, and frob the
*(sp-15) = post_signal_tramp; /* return address for call_into_lisp */
*(sp-14) = function; /* args for call_into_lisp : function*/
- *(sp-13) = 0; /* arg array */
- *(sp-12) = 0; /* no. args */
+ *(sp-13) = 0; /* arg array */
+ *(sp-12) = 0; /* no. args */
/* this order matches that used in POPAD */
*(sp-11)=*os_context_register_addr(context,reg_EDI);
*(sp-10)=*os_context_register_addr(context,reg_ESI);
*os_context_register_addr(context,reg_RDI) = function; /* function */
*os_context_register_addr(context,reg_RSI) = 0; /* arg. array */
*os_context_register_addr(context,reg_RDX) = 0; /* no. args */
-#else
+#else
struct thread *th=arch_os_get_current_thread();
build_fake_control_stack_frames(th,context);
#endif
#ifdef LISP_FEATURE_X86
*os_context_pc_addr(context) = call_into_lisp;
- *os_context_register_addr(context,reg_ECX) = 0;
+ *os_context_register_addr(context,reg_ECX) = 0;
*os_context_register_addr(context,reg_EBP) = sp-2;
-#ifdef __NetBSD__
+#ifdef __NetBSD__
*os_context_register_addr(context,reg_UESP) = sp-15;
#else
*os_context_register_addr(context,reg_ESP) = sp-15;
#endif
#elif defined(LISP_FEATURE_X86_64)
*os_context_pc_addr(context) = call_into_lisp;
- *os_context_register_addr(context,reg_RCX) = 0;
+ *os_context_register_addr(context,reg_RCX) = 0;
*os_context_register_addr(context,reg_RBP) = sp-2;
*os_context_register_addr(context,reg_RSP) = sp-18;
#else
/* this much of the calling convention is common to all
non-x86 ports */
*os_context_pc_addr(context) = code;
- *os_context_register_addr(context,reg_NARGS) = 0;
+ *os_context_register_addr(context,reg_NARGS) = 0;
*os_context_register_addr(context,reg_LIP) = code;
- *os_context_register_addr(context,reg_CFP) =
- current_control_frame_pointer;
+ *os_context_register_addr(context,reg_CFP) =
+ current_control_frame_pointer;
#endif
#ifdef ARCH_HAS_NPC_REGISTER
*os_context_npc_addr(context) =
- 4 + *os_context_pc_addr(context);
+ 4 + *os_context_pc_addr(context);
#endif
#ifdef LISP_FEATURE_SPARC
- *os_context_register_addr(context,reg_CODE) =
- fun + FUN_POINTER_LOWTAG;
+ *os_context_register_addr(context,reg_CODE) =
+ fun + FUN_POINTER_LOWTAG;
#endif
}
* variables should work for functions as well, but on PPC/Darwin
* we get bus error at bogus addresses instead, hence this workaround,
* that has the added benefit of automatically discriminating between
- * functions and variables.
+ * functions and variables.
*/
void undefined_alien_function() {
funcall0(SymbolFunction(UNDEFINED_ALIEN_FUNCTION_ERROR));
boolean handle_guard_page_triggered(os_context_t *context,void *addr){
struct thread *th=arch_os_get_current_thread();
-
- /* note the os_context hackery here. When the signal handler returns,
+
+ /* note the os_context hackery here. When the signal handler returns,
* it won't go back to what it was doing ... */
- if(addr >= CONTROL_STACK_GUARD_PAGE(th) &&
+ if(addr >= CONTROL_STACK_GUARD_PAGE(th) &&
addr < CONTROL_STACK_GUARD_PAGE(th) + os_vm_page_size) {
/* We hit the end of the control stack: disable guard page
* protection so the error handler has some headroom, protect the
* and restore it. */
protect_control_stack_guard_page(th,0);
protect_control_stack_return_guard_page(th,1);
-
+
arrange_return_to_lisp_function
(context, SymbolFunction(CONTROL_STACK_EXHAUSTED_ERROR));
return 1;
return 1;
}
else if (addr >= undefined_alien_address &&
- addr < undefined_alien_address + os_vm_page_size) {
- arrange_return_to_lisp_function
+ addr < undefined_alien_address + os_vm_page_size) {
+ arrange_return_to_lisp_function
(context, SymbolFunction(UNDEFINED_ALIEN_VARIABLE_ERROR));
- return 1;
+ return 1;
}
else return 0;
}
os_context_t *context=(os_context_t *) void_context;
struct thread *th=arch_os_get_current_thread();
struct interrupt_data *data=
- th ? th->interrupt_data : global_interrupt_data;
+ th ? th->interrupt_data : global_interrupt_data;
if(!data->pending_handler && !foreign_function_call_active &&
gc_trigger_hit(signal, info, context)){
/* SUB-GC may return without GCing if *GC-INHIBIT* is set, in
* which case we will be running with no gc trigger barrier
* thing for a while. But it shouldn't be long until the end
- * of WITHOUT-GCING.
+ * of WITHOUT-GCING.
*
* FIXME: It would be good to protect the end of dynamic space
* and signal a storage condition from there.
void
undoably_install_low_level_interrupt_handler (int signal,
- void handler(int,
- siginfo_t*,
- void*))
+ void handler(int,
+ siginfo_t*,
+ void*))
{
struct sigaction sa;
struct thread *th=arch_os_get_current_thread();
struct interrupt_data *data=
- th ? th->interrupt_data : global_interrupt_data;
+ th ? th->interrupt_data : global_interrupt_data;
if (0 > signal || signal >= NSIG) {
- lose("bad signal number %d", signal);
+ lose("bad signal number %d", signal);
}
if (sigismember(&blockable_sigset,signal))
sigaddset_blockable(&sa.sa_mask);
sa.sa_flags = SA_SIGINFO | SA_RESTART;
#ifdef LISP_FEATURE_C_STACK_IS_CONTROL_STACK
- if((signal==SIG_MEMORY_FAULT)
+ if((signal==SIG_MEMORY_FAULT)
#ifdef SIG_INTERRUPT_THREAD
|| (signal==SIG_INTERRUPT_THREAD)
#endif
)
- sa.sa_flags|= SA_ONSTACK;
+ sa.sa_flags|= SA_ONSTACK;
#endif
-
+
sigaction(signal, &sa, NULL);
data->interrupt_low_level_handlers[signal] =
- (ARE_SAME_HANDLER(handler, SIG_DFL) ? 0 : handler);
+ (ARE_SAME_HANDLER(handler, SIG_DFL) ? 0 : handler);
}
/* This is called from Lisp. */
union interrupt_handler oldhandler;
struct thread *th=arch_os_get_current_thread();
struct interrupt_data *data=
- th ? th->interrupt_data : global_interrupt_data;
+ th ? th->interrupt_data : global_interrupt_data;
FSHOW((stderr, "/entering POSIX install_handler(%d, ..)\n", signal));
sigaddset_blockable(&new);
FSHOW((stderr, "/data->interrupt_low_level_handlers[signal]=%x\n",
- (unsigned int)data->interrupt_low_level_handlers[signal]));
+ (unsigned int)data->interrupt_low_level_handlers[signal]));
if (data->interrupt_low_level_handlers[signal]==0) {
- if (ARE_SAME_HANDLER(handler, SIG_DFL) ||
- ARE_SAME_HANDLER(handler, SIG_IGN)) {
- sa.sa_sigaction = handler;
- } else if (sigismember(&new, signal)) {
- sa.sa_sigaction = maybe_now_maybe_later;
- } else {
- sa.sa_sigaction = interrupt_handle_now_handler;
- }
-
- sigemptyset(&sa.sa_mask);
- sigaddset_blockable(&sa.sa_mask);
- sa.sa_flags = SA_SIGINFO | SA_RESTART;
- sigaction(signal, &sa, NULL);
+ if (ARE_SAME_HANDLER(handler, SIG_DFL) ||
+ ARE_SAME_HANDLER(handler, SIG_IGN)) {
+ sa.sa_sigaction = handler;
+ } else if (sigismember(&new, signal)) {
+ sa.sa_sigaction = maybe_now_maybe_later;
+ } else {
+ sa.sa_sigaction = interrupt_handle_now_handler;
+ }
+
+ sigemptyset(&sa.sa_mask);
+ sigaddset_blockable(&sa.sa_mask);
+ sa.sa_flags = SA_SIGINFO | SA_RESTART;
+ sigaction(signal, &sa, NULL);
}
oldhandler = data->interrupt_handlers[signal];
SHOW("entering interrupt_init()");
sigemptyset(&blockable_sigset);
sigaddset_blockable(&blockable_sigset);
-
+
global_interrupt_data=calloc(sizeof(struct interrupt_data), 1);
/* Set up high level handler information. */
for (i = 0; i < NSIG; i++) {
global_interrupt_data->interrupt_handlers[i].c =
- /* (The cast here blasts away the distinction between
- * SA_SIGACTION-style three-argument handlers and
- * signal(..)-style one-argument handlers, which is OK
- * because it works to call the 1-argument form where the
- * 3-argument form is expected.) */
- (void (*)(int, siginfo_t*, void*))SIG_DFL;
+ /* (The cast here blasts away the distinction between
+ * SA_SIGACTION-style three-argument handlers and
+ * signal(..)-style one-argument handlers, which is OK
+ * because it works to call the 1-argument form where the
+ * 3-argument form is expected.) */
+ (void (*)(int, siginfo_t*, void*))SIG_DFL;
}
SHOW("returning from interrupt_init()");
projects / sbcl.git / blobdiff