static GumJscExceptionHandler *
gum_jsc_exception_handler_new (JSObjectRef callback,
GumJscCore * core)
{
GumJscExceptionHandler * handler;
handler = g_slice_new (GumJscExceptionHandler);
JSValueProtect (core->ctx, callback);
handler->callback = callback;
handler->core = core;
gum_exceptor_add (core->exceptor, gum_jsc_exception_handler_on_exception,
handler);
return handler;
}
gboolean
gum_memory_access_monitor_enable (GumMemoryAccessMonitor * self,
GError ** error)
{
GumMemoryAccessMonitorPrivate * priv = self->priv;
GumRangeStats stats;
if (priv->enabled)
return TRUE;
stats.live_size = 0;
stats.guarded_size = 0;
gum_memory_access_monitor_enumerate_live_ranges (self,
gum_collect_range_stats, &stats);
if (stats.live_size != priv->pages_total * priv->page_size)
goto error_invalid_pages;
else if (stats.guarded_size != 0)
goto error_guarded_pages;
priv->exceptor = gum_exceptor_obtain ();
gum_exceptor_add (priv->exceptor, gum_memory_access_monitor_on_exception,
self);
priv->num_pages = 0;
priv->pages_details = NULL;
gum_memory_access_monitor_enumerate_live_ranges (self,
gum_set_guard_flag, self);
priv->enabled = TRUE;
return TRUE;
error_invalid_pages:
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
"one or more pages are unallocated");
return FALSE;
}
error_guarded_pages:
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
"one or more pages already have the guard bit set");
return FALSE;
}
}
static GumDukExceptionHandler *
gum_duk_exception_handler_new (GumDukHeapPtr callback,
GumDukCore * core)
{
GumDukScope scope = GUM_DUK_SCOPE_INIT (core);
GumDukExceptionHandler * handler;
handler = g_slice_new (GumDukExceptionHandler);
_gum_duk_protect (scope.ctx, callback);
handler->callback = callback;
handler->core = core;
gum_exceptor_add (core->exceptor, gum_duk_exception_handler_on_exception,
handler);
return handler;
}