*
* - WHN 20000728, dan 20010128 */
+#include "sbcl.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <sys/types.h>
+#ifndef LISP_FEATURE_WIN32
#include <sys/wait.h>
+#endif
#include <errno.h>
-#include "sbcl.h"
#include "runtime.h"
#include "arch.h"
#include "os.h"
static void run_deferred_handler(struct interrupt_data *data, void *v_context);
+#ifndef LISP_FEATURE_WIN32
static void store_signal_data_for_later (struct interrupt_data *data,
void *handler, int signal,
siginfo_t *info,
/* initialized in interrupt_init */
static sigset_t deferrable_sigset;
static sigset_t blockable_sigset;
+#endif
void
check_blockables_blocked_or_lose()
{
+#ifndef LISP_FEATURE_WIN32
/* Get the current sigmask, by blocking the empty set. */
sigset_t empty,current;
int i;
thread_sigmask(SIG_BLOCK, &empty, ¤t);
for(i = 1; i < NSIG; i++) {
if (sigismember(&blockable_sigset, i) && !sigismember(¤t, i))
- lose("blockable signal %d not blocked",i);
+ lose("blockable signal %d not blocked\n",i);
}
+#endif
}
inline static void
{
struct thread *thread=arch_os_get_current_thread();
if (SymbolValue(INTERRUPTS_ENABLED,thread) == NIL)
- lose("interrupts not enabled");
+ lose("interrupts not enabled\n");
if (
#if !defined(LISP_FEATURE_X86) && !defined(LISP_FEATURE_X86_64)
(!foreign_function_call_active) &&
#endif
arch_pseudo_atomic_atomic(context))
- lose ("in pseudo atomic section");
+ lose ("in pseudo atomic section\n");
}
/* When we catch an internal error, should we pass it back to Lisp to
* becomes 'yes'.) */
boolean internal_errors_enabled = 0;
+#ifndef LISP_FEATURE_WIN32
static void (*interrupt_low_level_handlers[NSIG]) (int, siginfo_t*, void*);
+#endif
union interrupt_handler interrupt_handlers[NSIG];
/* At the toplevel repl we routinely call this function. The signal
void
reset_signal_mask(void)
{
+#ifndef LISP_FEATURE_WIN32
sigset_t new;
sigemptyset(&new);
thread_sigmask(SIG_SETMASK,&new,0);
+#endif
}
void
block_blockable_signals(void)
{
+#ifndef LISP_FEATURE_WIN32
thread_sigmask(SIG_BLOCK, &blockable_sigset, 0);
+#endif
}
\f
(*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\n", context);
}
#endif
#endif
fixnum_value(SymbolValue(FREE_INTERRUPT_CONTEXT_INDEX,thread));
if (context_index >= MAX_INTERRUPTS) {
- lose("maximum interrupt nesting depth (%d) exceeded", MAX_INTERRUPTS);
+ lose("maximum interrupt nesting depth (%d) exceeded\n", MAX_INTERRUPTS);
}
bind_variable(FREE_INTERRUPT_CONTEXT_INDEX,
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");
+ lose("internal error too early in init, can't recover\n");
}
/* Allocate the SAP object while the interrupts are still
* disabled. */
context_sap = alloc_sap(context);
+#ifndef LISP_FEATURE_WIN32
thread_sigmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
+#endif
SHOW("in interrupt_internal_error");
#ifdef QSHOW
* PSEUDO_ATOMIC_INTERRUPTED only if interrupts are enabled.*/
SetSymbolValue(INTERRUPT_PENDING, NIL,thread);
+#ifndef LISP_FEATURE_WIN32
/* restore the saved signal mask from the original signal (the
* one that interrupted us during the critical section) into the
* os_context for the signal we're currently in the handler for.
sigcopyset(os_context_sigmask_addr(context), &data->pending_mask);
sigemptyset(&data->pending_mask);
+#endif
/* This will break on sparc linux: the deferred handler really wants
* to be called with a void_context */
run_deferred_handler(data,(void *)context);
#endif
union interrupt_handler handler;
check_blockables_blocked_or_lose();
+#ifndef LISP_FEATURE_WIN32
if (sigismember(&deferrable_sigset,signal))
check_interrupts_enabled_or_lose(context);
+#endif
#ifdef LISP_FEATURE_LINUX
/* Under Linux on some architectures, we appear to have to restore
/* 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);
+ lose("no handler for signal %d in interrupt_handle_now(..)\n", signal);
} else if (lowtag_of(handler.lisp) == FUN_POINTER_LOWTAG) {
/* Once we've decided what to do about contexts in a
FSHOW_SIGNAL((stderr,"/calling C-level handler\n"));
+#ifndef LISP_FEATURE_WIN32
/* Allow signals again. */
thread_sigmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
+#endif
(*handler.c)(signal, info, void_context);
}
(*pending_handler)(data->pending_signal,&(data->pending_info), v_context);
}
+#ifndef LISP_FEATURE_WIN32
boolean
maybe_defer_handler(void *handler, struct interrupt_data *data,
int signal, siginfo_t *info, os_context_t *context)
check_blockables_blocked_or_lose();
if (SymbolValue(INTERRUPT_PENDING,thread) != NIL)
- lose("interrupt already pending");
+ lose("interrupt already pending\n");
/* If interrupts are disabled then INTERRUPT_PENDING is set and
* not PSEDUO_ATOMIC_INTERRUPTED. This is important for a pseudo
* atomic section inside a WITHOUT-INTERRUPTS.
DARWIN_FIX_CONTEXT(context);
#endif
}
+#endif
#ifdef LISP_FEATURE_SB_THREAD
interrupt_maybe_gc_int(int signal, siginfo_t *info, void *void_context)
{
os_context_t *context=(os_context_t *) void_context;
+#ifndef LISP_FEATURE_WIN32
struct thread *thread=arch_os_get_current_thread();
+#endif
fake_foreign_function_call(context);
* A kludgy alternative is to propagate the sigmask change to the
* outer context.
*/
+#ifndef LISP_FEATURE_WIN32
if(SymbolValue(INTERRUPTS_ENABLED,thread)!=NIL)
thread_sigmask(SIG_SETMASK, os_context_sigmask_addr(context), 0);
#ifdef LISP_FEATURE_SB_THREAD
thread_sigmask(SIG_UNBLOCK,&new,0);
}
#endif
+#endif
funcall0(SymbolFunction(SUB_GC));
undo_fake_foreign_function_call(context);
* noise to install handlers
*/
+#ifndef LISP_FEATURE_WIN32
/* In Linux 2.4 synchronous signals (sigtrap & co) can be delivered if
* they are blocked, in Linux 2.6 the default handler is invoked
* instead that usually coredumps. One might hastily think that adding
struct sigaction sa;
if (0 > signal || signal >= NSIG) {
- lose("bad signal number %d", signal);
+ lose("bad signal number %d\n", signal);
}
if (ARE_SAME_HANDLER(handler, SIG_DFL))
(sigaction_nodefer_works ? SA_NODEFER : 0);
#ifdef LISP_FEATURE_C_STACK_IS_CONTROL_STACK
if((signal==SIG_MEMORY_FAULT)
+#ifdef SIG_MEMORY_FAULT2
+ || (signal==SIG_MEMORY_FAULT2)
+#endif
#ifdef SIG_INTERRUPT_THREAD
|| (signal==SIG_INTERRUPT_THREAD)
#endif
interrupt_low_level_handlers[signal] =
(ARE_SAME_HANDLER(handler, SIG_DFL) ? 0 : handler);
}
+#endif
/* This is called from Lisp. */
unsigned long
install_handler(int signal, void handler(int, siginfo_t*, void*))
{
+#ifndef LISP_FEATURE_WIN32
struct sigaction sa;
sigset_t old, new;
union interrupt_handler oldhandler;
FSHOW((stderr, "/leaving POSIX install_handler(%d, ..)\n", signal));
return (unsigned long)oldhandler.lisp;
+#else
+ /* Probably-wrong Win32 hack */
+ return 0;
+#endif
}
void
interrupt_init()
{
+#ifndef LISP_FEATURE_WIN32
int i;
SHOW("entering interrupt_init()");
see_if_sigaction_nodefer_works();
}
SHOW("returning from interrupt_init()");
+#endif
}
projects / sbcl.git / blobdiff