#include <mono/utils/dtrace.h>
#include <mono/utils/mono-signal-handler.h>
#include <mono/utils/mono-threads.h>
-#include <mono/utils/mono-threads-posix-signals.h>
#include "mini.h"
#include <string.h>
void
mono_runtime_posix_install_handlers(void)
{
-
+ /* we still need to ignore SIGPIPE */
+ signal (SIGPIPE, SIG_IGN);
}
void
{
}
-#if !defined(PLATFORM_MACOSX)
-pid_t
-mono_runtime_syscall_fork (void)
-{
- g_assert_not_reached();
- return 0;
-}
-
-void
-mono_gdb_render_native_backtraces (pid_t crashed_pid)
-{
-}
-#endif
-
#else
static GHashTable *mono_saved_signal_handlers = NULL;
static struct sigaction *
-get_saved_signal_handler (int signo)
+get_saved_signal_handler (int signo, gboolean remove)
{
- if (mono_saved_signal_handlers)
+ if (mono_saved_signal_handlers) {
/* The hash is only modified during startup, so no need for locking */
- return (struct sigaction *)g_hash_table_lookup (mono_saved_signal_handlers, GINT_TO_POINTER (signo));
+ struct sigaction *handler = g_hash_table_lookup (mono_saved_signal_handlers, GINT_TO_POINTER (signo));
+ if (remove && handler)
+ g_hash_table_remove (mono_saved_signal_handlers, GINT_TO_POINTER (signo));
+ return handler;
+ }
return NULL;
}
handler_to_save->sa_flags = old_action->sa_flags;
if (!mono_saved_signal_handlers)
- mono_saved_signal_handlers = g_hash_table_new (NULL, NULL);
+ mono_saved_signal_handlers = g_hash_table_new_full (NULL, NULL, NULL, g_free);
g_hash_table_insert (mono_saved_signal_handlers, GINT_TO_POINTER (signo), handler_to_save);
}
-static void
-free_saved_sig_handler_func (gpointer key, gpointer value, gpointer user_data)
-{
- g_free (value);
-}
-
static void
free_saved_signal_handlers (void)
{
if (mono_saved_signal_handlers) {
- g_hash_table_foreach (mono_saved_signal_handlers, free_saved_sig_handler_func, NULL);
g_hash_table_destroy (mono_saved_signal_handlers);
mono_saved_signal_handlers = NULL;
}
MONO_SIG_HANDLER_SIGNATURE (mono_chain_signal)
{
int signal = MONO_SIG_HANDLER_GET_SIGNO ();
- struct sigaction *saved_handler = (struct sigaction *)get_saved_signal_handler (signal);
+ struct sigaction *saved_handler = (struct sigaction *)get_saved_signal_handler (signal, FALSE);
if (saved_handler && saved_handler->sa_handler) {
if (!(saved_handler->sa_flags & SA_SIGINFO)) {
if (!ji) {
if (mono_chain_signal (MONO_SIG_HANDLER_PARAMS))
return;
- mono_handle_native_sigsegv (SIGABRT, ctx, info);
+ mono_handle_native_crash ("SIGABRT", ctx, info);
}
}
if (call_chain_depth == 0) {
mono_profiler_stat_hit ((guchar *)mono_arch_ip_from_context (ctx), ctx);
} else {
- MonoJitTlsData *jit_tls = (MonoJitTlsData *)mono_native_tls_get_value (mono_jit_tls_id);
+ MonoJitTlsData *jit_tls = (MonoJitTlsData *)mono_tls_get_jit_tls ();
int current_frame_index = 1;
MonoContext mono_context;
guchar *ips [call_chain_depth + 1];
/* See the comment in mono_runtime_shutdown_stat_profiler (). */
if (mono_native_thread_id_get () == sampling_thread) {
-#ifdef HAVE_CLOCK_NANOSLEEP
- if (mono_profiler_get_sampling_mode () == MONO_PROFILER_STAT_MODE_PROCESS) {
- InterlockedIncrement (&profiler_interrupt_signals_received);
- return;
- }
-#endif
-
- g_error ("%s: Unexpected profiler signal received by the sampler thread", __func__);
+ InterlockedIncrement (&profiler_interrupt_signals_received);
+ return;
}
InterlockedIncrement (&profiler_signals_received);
if (mono_thread_info_get_small_id () == -1)
return; //an non-attached thread got the signal
- if (!mono_domain_get () || !mono_native_tls_get_value (mono_jit_tls_id))
+ if (!mono_domain_get () || !mono_tls_get_jit_tls ())
return; //thread in the process of dettaching
InterlockedIncrement (&profiler_signals_accepted);
remove_signal_handler (int signo)
{
struct sigaction sa;
- struct sigaction *saved_action = get_saved_signal_handler (signo);
+ struct sigaction *saved_action = get_saved_signal_handler (signo, TRUE);
if (!saved_action) {
sa.sa_handler = SIG_DFL;
{
InterlockedWrite (&sampling_thread_running, 0);
-#ifdef HAVE_CLOCK_NANOSLEEP
+#ifndef PLATFORM_MACOSX
/*
* There is a slight problem when we're using CLOCK_PROCESS_CPUTIME_ID: If
* we're shutting down and there's largely no activity in the process other
* sampling_thread_running upon an interrupt and return immediately if it's
* zero. profiler_signal_handler () has a special case to ignore the signal
* for the sampler thread.
- *
- * We do not need to do this on platforms where we use a regular sleep
- * based on a monotonic clock. The sleep will return in a reasonable amount
- * of time in those cases.
*/
- if (mono_profiler_get_sampling_mode () == MONO_PROFILER_STAT_MODE_PROCESS) {
- MonoThreadInfo *info;
-
- // Did it shut down already?
- if ((info = mono_thread_info_lookup (sampling_thread))) {
- while (!InterlockedRead (&sampling_thread_exiting)) {
- mono_threads_pthread_kill (info, profiler_signal);
- mono_thread_info_usleep (10 * 1000 /* 10ms */);
- }
+ MonoThreadInfo *info;
- // Make sure info can be freed.
- mono_hazard_pointer_clear (mono_hazard_pointer_get (), 1);
+ // Did it shut down already?
+ if ((info = mono_thread_info_lookup (sampling_thread))) {
+ while (!InterlockedRead (&sampling_thread_exiting)) {
+ mono_threads_pthread_kill (info, profiler_signal);
+ mono_thread_info_usleep (10 * 1000 /* 10ms */);
}
+
+ // Make sure info can be freed.
+ mono_hazard_pointer_clear (mono_hazard_pointer_get (), 1);
}
#endif
- pthread_join (sampling_thread, NULL);
+ mono_native_thread_join (sampling_thread);
/*
* We can't safely remove the signal handler because we have no guarantee
*/
#if defined (USE_POSIX_BACKEND) && defined (SIGRTMIN) && !defined (PLATFORM_ANDROID)
/* Just take the first real-time signal we can get. */
- profiler_signal = mono_threads_posix_signal_search_alternative (-1);
+ profiler_signal = mono_threads_suspend_search_alternative_signal ();
#else
profiler_signal = SIGPROF;
#endif
#endif
-#if !defined(PLATFORM_MACOSX)
+#endif /* defined(__native_client__) || defined(HOST_WATCHOS) */
+
+#if defined(__native_client__)
+
+void
+mono_gdb_render_native_backtraces (pid_t crashed_pid)
+{
+}
+
+#else
+
pid_t
mono_runtime_syscall_fork ()
{
return 0;
#elif defined(SYS_fork)
return (pid_t) syscall (SYS_fork);
+#elif defined(PLATFORM_MACOSX) && HAVE_FORK
+ return (pid_t) fork ();
#else
g_assert_not_reached ();
return 0;
#endif
}
+static gboolean
+native_stack_with_gdb (pid_t crashed_pid, const char **argv, FILE *commands, char* commands_filename)
+{
+ gchar *gdb;
+
+ gdb = g_find_program_in_path ("gdb");
+ if (!gdb)
+ return FALSE;
+
+ argv [0] = gdb;
+ argv [1] = "-batch";
+ argv [2] = "-x";
+ argv [3] = commands_filename;
+ argv [4] = "-nx";
+
+ fprintf (commands, "attach %ld\n", (long) crashed_pid);
+ fprintf (commands, "info threads\n");
+ fprintf (commands, "thread apply all bt\n");
+
+ return TRUE;
+}
+
+
+static gboolean
+native_stack_with_lldb (pid_t crashed_pid, const char **argv, FILE *commands, char* commands_filename)
+{
+ gchar *lldb;
+
+ lldb = g_find_program_in_path ("lldb");
+ if (!lldb)
+ return FALSE;
+
+ argv [0] = lldb;
+ argv [1] = "--batch";
+ argv [2] = "--source";
+ argv [3] = commands_filename;
+ argv [4] = "--no-lldbinit";
+
+ fprintf (commands, "process attach --pid %ld\n", (long) crashed_pid);
+ fprintf (commands, "thread list\n");
+ fprintf (commands, "thread backtrace all\n");
+ fprintf (commands, "detach\n");
+ fprintf (commands, "quit\n");
+
+ return TRUE;
+}
+
void
mono_gdb_render_native_backtraces (pid_t crashed_pid)
{
- const char *argv [9];
- char template_ [] = "/tmp/mono-lldb-commands.XXXXXX";
- char buf1 [128];
+#ifdef HAVE_EXECV
+ const char *argv [10];
FILE *commands;
- gboolean using_lldb = FALSE;
+ char commands_filename [] = "/tmp/mono-gdb-commands.XXXXXX";
- argv [0] = g_find_program_in_path ("gdb");
- if (argv [0] == NULL) {
- argv [0] = g_find_program_in_path ("lldb");
- using_lldb = TRUE;
- }
+ if (mkstemp (commands_filename) == -1)
+ return;
- if (argv [0] == NULL)
+ commands = fopen (commands_filename, "w");
+ if (!commands) {
+ unlink (commands_filename);
return;
+ }
- if (using_lldb) {
- if (mkstemp (template_) == -1)
- return;
+ memset (argv, 0, sizeof (char*) * 10);
- commands = fopen (template_, "w");
+#if defined(PLATFORM_MACOSX)
+ if (native_stack_with_lldb (crashed_pid, argv, commands, commands_filename))
+ goto exec;
+#endif
- fprintf (commands, "process attach --pid %ld\n", (long) crashed_pid);
- fprintf (commands, "thread list\n");
- fprintf (commands, "thread backtrace all\n");
- fprintf (commands, "detach\n");
- fprintf (commands, "quit\n");
+ if (native_stack_with_gdb (crashed_pid, argv, commands, commands_filename))
+ goto exec;
- fflush (commands);
- fclose (commands);
+#if !defined(PLATFORM_MACOSX)
+ if (native_stack_with_lldb (crashed_pid, argv, commands, commands_filename))
+ goto exec;
+#endif
- argv [1] = "--source";
- argv [2] = template_;
- argv [3] = 0;
- } else {
- argv [1] = "-ex";
- sprintf (buf1, "attach %ld", (long) crashed_pid);
- argv [2] = buf1;
- argv [3] = "--ex";
- argv [4] = "info threads";
- argv [5] = "--ex";
- argv [6] = "thread apply all bt";
- argv [7] = "--batch";
- argv [8] = 0;
- }
+ fprintf (stderr, "mono_gdb_render_native_backtraces not supported on this platform, unable to find gdb or lldb\n");
+ fclose (commands);
+ unlink (commands_filename);
+ return;
+
+exec:
execv (argv [0], (char**)argv);
- if (using_lldb)
- unlink (template_);
+ _exit (-1);
+#else
+ fprintf (stderr, "mono_gdb_render_native_backtraces not supported on this platform\n");
+#endif // HAVE_EXECV
}
-#endif
-#endif /* __native_client__ */
+
+#endif /* defined(__native_client__) */
#if !defined (__MACH__)
projects / mono.git / blobdiff