#ifdef HAVE_SYS_SYSCALL_H
#include <sys/syscall.h>
#endif
+#include <errno.h>
+
#include <mono/metadata/assembly.h>
#include <mono/metadata/loader.h>
#include <mono/utils/mono-mmap.h>
#include <mono/utils/dtrace.h>
#include <mono/utils/mono-signal-handler.h>
+#include <mono/utils/mono-threads.h>
#include "mini.h"
#include <string.h>
#include "jit-icalls.h"
-#if defined(__native_client__)
+#if defined(__native_client__) || defined(HOST_WATCHOS)
void
mono_runtime_setup_stat_profiler (void)
gboolean
-SIG_HANDLER_SIGNATURE (mono_chain_signal)
+MONO_SIG_HANDLER_SIGNATURE (mono_chain_signal)
{
return FALSE;
}
+#ifndef PLATFORM_MACOSX
void
mono_runtime_install_handlers (void)
{
+}
+#endif
+
+void
+mono_runtime_posix_install_handlers(void)
+{
+
}
void
{
}
+#if !defined(PLATFORM_MACOSX)
pid_t
mono_runtime_syscall_fork (void)
{
mono_gdb_render_native_backtraces (pid_t crashed_pid)
{
}
+#endif
#else
* was called, false otherwise.
*/
gboolean
-SIG_HANDLER_SIGNATURE (mono_chain_signal)
+MONO_SIG_HANDLER_SIGNATURE (mono_chain_signal)
{
- int signal = _dummy;
+ int signal = MONO_SIG_HANDLER_GET_SIGNO ();
struct sigaction *saved_handler = get_saved_signal_handler (signal);
- GET_CONTEXT;
-
if (saved_handler && saved_handler->sa_handler) {
if (!(saved_handler->sa_flags & SA_SIGINFO)) {
saved_handler->sa_handler (signal);
} else {
#ifdef MONO_ARCH_USE_SIGACTION
- saved_handler->sa_sigaction (signal, info, ctx);
+ saved_handler->sa_sigaction (MONO_SIG_HANDLER_PARAMS);
#endif /* MONO_ARCH_USE_SIGACTION */
}
return TRUE;
return FALSE;
}
-SIG_HANDLER_FUNC (static, sigabrt_signal_handler)
+MONO_SIG_HANDLER_FUNC (static, sigabrt_signal_handler)
{
MonoJitInfo *ji = NULL;
- GET_CONTEXT;
+ MONO_SIG_HANDLER_INFO_TYPE *info = MONO_SIG_HANDLER_GET_INFO ();
+ MONO_SIG_HANDLER_GET_CONTEXT;
if (mono_thread_internal_current ())
- ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context(ctx));
+ ji = mono_jit_info_table_find_internal (mono_domain_get (), mono_arch_ip_from_context (ctx), TRUE, TRUE);
if (!ji) {
- if (mono_chain_signal (SIG_HANDLER_PARAMS))
+ if (mono_chain_signal (MONO_SIG_HANDLER_PARAMS))
return;
- mono_handle_native_sigsegv (SIGABRT, ctx);
+ mono_handle_native_sigsegv (SIGABRT, ctx, info);
}
}
-SIG_HANDLER_FUNC (static, sigusr1_signal_handler)
-{
- gboolean running_managed;
- MonoException *exc;
- MonoInternalThread *thread = mono_thread_internal_current ();
- MonoDomain *domain = mono_domain_get ();
- void *ji;
-
- GET_CONTEXT;
-
- if (!thread || !domain) {
- /* The thread might not have started up yet */
- /* FIXME: Specify the synchronization with start_wrapper () in threads.c */
- mono_debugger_agent_thread_interrupt (ctx, NULL);
- return;
- }
-
- if (thread->ignore_next_signal) {
- thread->ignore_next_signal = FALSE;
- return;
- }
-
- if (thread->thread_dump_requested) {
- thread->thread_dump_requested = FALSE;
-
- mono_print_thread_dump (ctx);
- }
-
- /*
- * This is an async signal, so the code below must not call anything which
- * is not async safe. That includes the pthread locking functions. If we
- * know that we interrupted managed code, then locking is safe.
- */
- /*
- * On OpenBSD, ctx can be NULL if we are interrupting poll ().
- */
- if (ctx) {
- ji = mono_jit_info_table_find (mono_domain_get (), mono_arch_ip_from_context(ctx));
- running_managed = ji != NULL;
-
- if (mono_debugger_agent_thread_interrupt (ctx, ji))
- return;
- } else {
- running_managed = FALSE;
- }
-
- /* We can't do handler block checking from metadata since it requires doing
- * a stack walk with context.
- *
- * FIXME add full-aot support.
- */
-#ifdef MONO_ARCH_HAVE_SIGCTX_TO_MONOCTX
- if (!mono_aot_only && ctx) {
- MonoThreadUnwindState unwind_state;
- if (mono_thread_state_init_from_sigctx (&unwind_state, ctx)) {
- if (mono_install_handler_block_guard (&unwind_state)) {
-#ifndef HOST_WIN32
- /*Clear current thread from been wapi interrupted otherwise things can go south*/
- wapi_clear_interruption ();
-#endif
- return;
- }
- }
- }
-#endif
-
- exc = mono_thread_request_interruption (running_managed);
- if (!exc)
- return;
-
- mono_arch_handle_exception (ctx, exc);
-}
-
-
#if defined(__i386__) || defined(__x86_64__)
#define FULL_STAT_PROFILER_BACKTRACE 1
#define CURRENT_FRAME_GET_BASE_POINTER(f) (* (gpointer*)(f))
#endif
#ifdef SIGPROF
-#if defined(__ia64__) || defined(__sparc__) || defined(sparc) || defined(__s390__) || defined(s390)
-SIG_HANDLER_FUNC (static, sigprof_signal_handler)
+static int profiling_signal_in_use;
+
+#if defined(__ia64__) || defined(__sparc__) || defined(sparc)
+
+MONO_SIG_HANDLER_FUNC (static, sigprof_signal_handler)
{
- if (mono_chain_signal (SIG_HANDLER_PARAMS))
+ if (mono_chain_signal (MONO_SIG_HANDLER_PARAMS))
return;
NOT_IMPLEMENTED;
#else
-SIG_HANDLER_FUNC (static, sigprof_signal_handler)
+static void
+per_thread_profiler_hit (void *ctx)
{
int call_chain_depth = mono_profiler_stat_get_call_chain_depth ();
MonoProfilerCallChainStrategy call_chain_strategy = mono_profiler_stat_get_call_chain_strategy ();
- GET_CONTEXT;
-
+
if (call_chain_depth == 0) {
mono_profiler_stat_hit (mono_arch_ip_from_context (ctx), ctx);
} else {
MonoContext mono_context;
guchar *ips [call_chain_depth + 1];
- mono_arch_sigctx_to_monoctx (ctx, &mono_context);
+ mono_sigctx_to_monoctx (ctx, &mono_context);
ips [0] = MONO_CONTEXT_GET_IP (&mono_context);
if (jit_tls != NULL) {
mono_profiler_stat_call_chain (current_frame_index, & ips [0], ctx);
}
+}
+
+MONO_SIG_HANDLER_FUNC (static, sigprof_signal_handler)
+{
+ MonoThreadInfo *info;
+ int old_errno = errno;
+ int hp_save_index;
+ MONO_SIG_HANDLER_GET_CONTEXT;
+
+ 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))
+ return; //thread in the process of dettaching
+
+ hp_save_index = mono_hazard_pointer_save_for_signal_handler ();
- mono_chain_signal (SIG_HANDLER_PARAMS);
+ /* If we can't consume a profiling request it means we're the initiator. */
+ if (!(mono_threads_consume_async_jobs () & MONO_SERVICE_REQUEST_SAMPLE)) {
+ FOREACH_THREAD_SAFE (info) {
+ if (mono_thread_info_get_tid (info) == mono_native_thread_id_get ())
+ continue;
+
+ mono_threads_add_async_job (info, MONO_SERVICE_REQUEST_SAMPLE);
+ mono_threads_pthread_kill (info, profiling_signal_in_use);
+ } END_FOREACH_THREAD_SAFE;
+ }
+
+ mono_thread_info_set_is_async_context (TRUE);
+ per_thread_profiler_hit (ctx);
+ mono_thread_info_set_is_async_context (FALSE);
+
+ mono_hazard_pointer_restore_for_signal_handler (hp_save_index);
+ errno = old_errno;
+
+ mono_chain_signal (MONO_SIG_HANDLER_PARAMS);
}
#endif
#endif
-SIG_HANDLER_FUNC (static, sigquit_signal_handler)
+MONO_SIG_HANDLER_FUNC (static, sigquit_signal_handler)
{
gboolean res;
- GET_CONTEXT;
-
/* We use this signal to start the attach agent too */
res = mono_attach_start ();
if (res)
return;
- if (mono_thread_info_new_interrupt_enabled ()) {
- mono_threads_request_thread_dump ();
- } else {
- printf ("Full thread dump:\n");
-
- mono_threads_request_thread_dump ();
+ mono_threads_request_thread_dump ();
- /*
- * print_thread_dump () skips the current thread, since sending a signal
- * to it would invoke the signal handler below the sigquit signal handler,
- * and signal handlers don't create an lmf, so the stack walk could not
- * be performed.
- */
- mono_print_thread_dump (ctx);
- }
-
- mono_chain_signal (SIG_HANDLER_PARAMS);
+ mono_chain_signal (MONO_SIG_HANDLER_PARAMS);
}
-SIG_HANDLER_FUNC (static, sigusr2_signal_handler)
+MONO_SIG_HANDLER_FUNC (static, sigusr2_signal_handler)
{
gboolean enabled = mono_trace_is_enabled ();
mono_trace_enable (!enabled);
- mono_chain_signal (SIG_HANDLER_PARAMS);
+ mono_chain_signal (MONO_SIG_HANDLER_PARAMS);
}
static void
#ifdef MONO_ARCH_SIGSEGV_ON_ALTSTACK
/*Apple likes to deliver SIGBUS for *0 */
-#ifdef __APPLE__
+#ifdef PLATFORM_MACOSX
if (signo == SIGSEGV || signo == SIGBUS) {
#else
if (signo == SIGSEGV) {
sigset_t block_mask;
sigemptyset (&block_mask);
- sigaddset (&sa.sa_mask, mono_thread_get_abort_signal ());
}
#else
sa.sa_handler = handler;
if (mono_jit_trace_calls != NULL)
add_signal_handler (SIGUSR2, sigusr2_signal_handler);
- if (!mono_thread_info_new_interrupt_enabled ())
- add_signal_handler (mono_thread_get_abort_signal (), sigusr1_signal_handler);
/* it seems to have become a common bug for some programs that run as parents
* of many processes to block signal delivery for real time signals.
* We try to detect and work around their breakage here.
*/
sigemptyset (&signal_set);
- sigaddset (&signal_set, mono_thread_get_abort_signal ());
if (mono_gc_get_suspend_signal () != -1)
sigaddset (&signal_set, mono_gc_get_suspend_signal ());
if (mono_gc_get_restart_signal () != -1)
if (mono_jit_trace_calls != NULL)
remove_signal_handler (SIGUSR2);
- remove_signal_handler (mono_thread_get_abort_signal ());
-
remove_signal_handler (SIGABRT);
remove_signal_handler (SIGSEGV);
#endif
}
+#ifdef ITIMER_PROF
+static int
+get_itimer_mode (void)
+{
+ switch (mono_profiler_get_sampling_mode ()) {
+ case MONO_PROFILER_STAT_MODE_PROCESS: return ITIMER_PROF;
+ case MONO_PROFILER_STAT_MODE_REAL: return ITIMER_REAL;
+ }
+ g_assert_not_reached ();
+ return 0;
+}
+
+static int
+get_itimer_signal (void)
+{
+ switch (mono_profiler_get_sampling_mode ()) {
+ case MONO_PROFILER_STAT_MODE_PROCESS: return SIGPROF;
+ case MONO_PROFILER_STAT_MODE_REAL: return SIGALRM;
+ }
+ g_assert_not_reached ();
+ return 0;
+}
+#endif
+
void
mono_runtime_setup_stat_profiler (void)
{
perror ("open /dev/rtc");
return;
}
- add_signal_handler (SIGPROF, sigprof_signal_handler);
+ profiling_signal_in_use = SIGPROF;
+ add_signal_handler (profiling_signal_in_use, sigprof_signal_handler);
if (ioctl (rtc_fd, RTC_IRQP_SET, freq) == -1) {
perror ("set rtc freq");
return;
return;
#endif
- itval.it_interval.tv_usec = 999;
+ itval.it_interval.tv_usec = (1000000 / mono_profiler_get_sampling_rate ()) - 1;
itval.it_interval.tv_sec = 0;
itval.it_value = itval.it_interval;
- setitimer (ITIMER_PROF, &itval, NULL);
if (inited)
return;
inited = 1;
- add_signal_handler (SIGPROF, sigprof_signal_handler);
+ profiling_signal_in_use = get_itimer_signal ();
+ add_signal_handler (profiling_signal_in_use, sigprof_signal_handler);
+ setitimer (get_itimer_mode (), &itval, NULL);
#endif
}
-#if !defined(__APPLE__)
+#if !defined(PLATFORM_MACOSX)
pid_t
mono_runtime_syscall_fork ()
{
-#if defined(SYS_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);
#else
g_assert_not_reached ();
projects / mono.git / blobdiff