[build] Fix warning (#4177)
[mono.git] / mono / mini / mini-posix.c
index b0d7a0709db70da65da166e78c821cdd66b50743..56225b1d33cd438b4b8d14690f522f8f0790def7 100644 (file)
@@ -59,7 +59,6 @@
 #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>
@@ -121,20 +120,6 @@ mono_runtime_cleanup_handlers (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;
@@ -221,7 +206,7 @@ MONO_SIG_HANDLER_FUNC (static, sigabrt_signal_handler)
        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);
        }
 }
 
@@ -255,7 +240,7 @@ per_thread_profiler_hit (void *ctx)
        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];
@@ -335,14 +320,8 @@ MONO_SIG_HANDLER_FUNC (static, profiler_signal_handler)
 
        /* 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);
@@ -350,7 +329,7 @@ MONO_SIG_HANDLER_FUNC (static, profiler_signal_handler)
        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);
@@ -761,7 +740,7 @@ mono_runtime_shutdown_stat_profiler (void)
 {
        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
@@ -774,28 +753,22 @@ mono_runtime_shutdown_stat_profiler (void)
         * 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
@@ -825,7 +798,7 @@ mono_runtime_setup_stat_profiler (void)
         */
 #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
@@ -855,77 +828,112 @@ mono_runtime_setup_stat_profiler (void)
 
 #endif
 
-#if !defined(PLATFORM_MACOSX)
-pid_t
-mono_runtime_syscall_fork ()
-{
-#if defined(PLATFORM_ANDROID)
-       /* SYS_fork is defined to be __NR_fork which is not defined in some ndk versions */
-       g_assert_not_reached ();
-       return 0;
-#elif defined(SYS_fork)
-       return (pid_t) syscall (SYS_fork);
+#endif /* defined(__native_client__) || defined(HOST_WATCHOS) */
+
+#if defined(__native_client__)
+
+void
+mono_gdb_render_native_backtraces (pid_t crashed_pid)
+{
+}
+
 #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);
+
+#if defined(PLATFORM_MACOSX)
+       if (native_stack_with_lldb (crashed_pid, argv, commands, commands_filename))
+               goto exec;
+#endif
 
-               commands = fopen (template_, "w");
+       if (native_stack_with_gdb (crashed_pid, argv, commands, commands_filename))
+               goto exec;
 
-               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 !defined(PLATFORM_MACOSX)
+       if (native_stack_with_lldb (crashed_pid, argv, commands, commands_filename))
+               goto exec;
+#endif
 
-               fflush (commands);
-               fclose (commands);
+       fprintf (stderr, "mono_gdb_render_native_backtraces not supported on this platform, unable to find gdb or lldb\n");
 
-               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;
-       }
+       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__)