-/*
- * mini-darwin.c: Darwin/MacOS support for Mono.
+/**
+ * \file
+ * Darwin/MacOS support for Mono.
*
* Authors:
* Mono Team (mono-list@lists.ximian.com)
* Copyright 2003-2011 Novell, Inc (http://www.novell.com)
* Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
*
- * See LICENSE for licensing information.
+ * Licensed under the MIT license. See LICENSE file in the project root for full license information.
*/
#include <config.h>
#include <signal.h>
#include <mono/metadata/threads.h>
#include <mono/metadata/appdomain.h>
#include <mono/metadata/debug-helpers.h>
-#include <mono/io-layer/io-layer.h>
-#include "mono/metadata/profiler.h"
#include <mono/metadata/profiler-private.h>
#include <mono/metadata/mono-config.h>
#include <mono/metadata/environment.h>
#include <mono/metadata/verify-internals.h>
#include <mono/metadata/mempool-internals.h>
#include <mono/metadata/attach.h>
-#include <mono/metadata/gc-internal.h>
+#include <mono/metadata/gc-internals.h>
#include <mono/utils/mono-math.h>
#include <mono/utils/mono-compiler.h>
#include <mono/utils/mono-counters.h>
-#include <mono/utils/mono-logger-internal.h>
+#include <mono/utils/mono-logger-internals.h>
#include <mono/utils/mono-mmap.h>
#include <mono/utils/dtrace.h>
#include <dlfcn.h>
#include <AvailabilityMacros.h>
-#if defined (TARGET_OSX) && (MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_5)
-#define NEEDS_EXCEPTION_THREAD
-#endif
-
-#ifdef NEEDS_EXCEPTION_THREAD
-
-/*
- * This code disables the CrashReporter of MacOS X by installing
- * a dummy Mach exception handler.
- */
-
-/*
- * http://darwinsource.opendarwin.org/10.4.3/xnu-792.6.22/osfmk/man/exc_server.html
- */
-extern boolean_t exc_server (mach_msg_header_t *request_msg, mach_msg_header_t *reply_msg);
-
-/*
- * The exception message
- */
-typedef struct {
- mach_msg_base_t msg; /* common mach message header */
- char payload [1024]; /* opaque */
-} mach_exception_msg_t;
-
-/* The exception port */
-static mach_port_t mach_exception_port = VM_MAP_NULL;
-
-kern_return_t
-catch_exception_raise (
- mach_port_t exception_port,
- mach_port_t thread,
- mach_port_t task,
- exception_type_t exception,
- exception_data_t code,
- mach_msg_type_number_t code_count);
-
-/*
- * Implicitly called by exc_server. Must be public.
- *
- * http://darwinsource.opendarwin.org/10.4.3/xnu-792.6.22/osfmk/man/catch_exception_raise.html
- */
-kern_return_t
-catch_exception_raise (
- mach_port_t exception_port,
- mach_port_t thread,
- mach_port_t task,
- exception_type_t exception,
- exception_data_t code,
- mach_msg_type_number_t code_count)
-{
- /* consume the exception */
- return KERN_FAILURE;
-}
-
-/*
- * Exception thread handler.
- */
-static
-void *
-mach_exception_thread (void *arg)
-{
- for (;;) {
- mach_exception_msg_t request;
- mach_exception_msg_t reply;
- mach_msg_return_t result;
-
- /* receive from "mach_exception_port" */
- result = mach_msg (&request.msg.header,
- MACH_RCV_MSG | MACH_RCV_LARGE,
- 0,
- sizeof (request),
- mach_exception_port,
- MACH_MSG_TIMEOUT_NONE,
- MACH_PORT_NULL);
-
- g_assert (result == MACH_MSG_SUCCESS);
-
- /* dispatch to catch_exception_raise () */
- exc_server (&request.msg.header, &reply.msg.header);
-
- /* send back to sender */
- result = mach_msg (&reply.msg.header,
- MACH_SEND_MSG,
- reply.msg.header.msgh_size,
- 0,
- MACH_PORT_NULL,
- MACH_MSG_TIMEOUT_NONE,
- MACH_PORT_NULL);
-
- /*
- If we try to abort the thread while delivering an exception. The port will be gone since the kernel
- setup a send once port to deliver the resume message and thread_abort will consume it.
- */
- g_assert (result == MACH_MSG_SUCCESS || result == MACH_SEND_INVALID_DEST);
- }
- return NULL;
-}
-
-static void
-macosx_register_exception_handler (void)
-{
- mach_port_t task;
- pthread_attr_t attr;
- pthread_t thread;
-
- if (mach_exception_port != VM_MAP_NULL)
- return;
-
- task = mach_task_self ();
-
- /* create the "mach_exception_port" with send & receive rights */
- g_assert (mach_port_allocate (task, MACH_PORT_RIGHT_RECEIVE,
- &mach_exception_port) == KERN_SUCCESS);
- g_assert (mach_port_insert_right (task, mach_exception_port, mach_exception_port,
- MACH_MSG_TYPE_MAKE_SEND) == KERN_SUCCESS);
-
- /* create the exception handler thread */
- g_assert (!pthread_attr_init (&attr));
- g_assert (!pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED));
- g_assert (!pthread_create (&thread, &attr, mach_exception_thread, NULL));
- pthread_attr_destroy (&attr);
-
- /*
- * register "mach_exception_port" as a receiver for the
- * EXC_BAD_ACCESS exception
- *
- * http://darwinsource.opendarwin.org/10.4.3/xnu-792.6.22/osfmk/man/task_set_exception_ports.html
- */
- g_assert (task_set_exception_ports (task, EXC_MASK_BAD_ACCESS,
- mach_exception_port,
- EXCEPTION_DEFAULT,
- MACHINE_THREAD_STATE) == KERN_SUCCESS);
-
- mono_gc_register_mach_exception_thread (thread);
-}
-
-#endif
-
/* This is #define'd by Boehm GC to _GC_dlopen. */
#undef dlopen
void
mono_runtime_install_handlers (void)
{
-#ifdef NEEDS_EXCEPTION_THREAD
- macosx_register_exception_handler ();
-#endif
mono_runtime_posix_install_handlers ();
/* Snow Leopard has a horrible bug: http://openradar.appspot.com/7209349
#endif
}
-pid_t
-mono_runtime_syscall_fork ()
-{
-#ifdef HAVE_FORK
- return (pid_t) fork ();
-#else
- g_assert_not_reached ();
-#endif
-}
-
-void
-mono_gdb_render_native_backtraces (pid_t crashed_pid)
-{
-#ifdef HAVE_EXECV
- const char *argv [5];
- char template [] = "/tmp/mono-gdb-commands.XXXXXX";
- FILE *commands;
- gboolean using_lldb = FALSE;
-
- using_lldb = TRUE;
-
- argv [0] = g_find_program_in_path ("gdb");
- if (argv [0])
- using_lldb = FALSE;
-
- if (using_lldb)
- argv [0] = g_find_program_in_path ("lldb");
-
- if (argv [0] == NULL)
- return;
-
- if (mkstemp (template) == -1)
- return;
-
- commands = fopen (template, "w");
- if (using_lldb) {
- 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");
- argv [1] = "--source";
- argv [2] = template;
- argv [3] = 0;
-
- } else {
- fprintf (commands, "attach %ld\n", (long) crashed_pid);
- fprintf (commands, "info threads\n");
- fprintf (commands, " t a a info thread\n");
- fprintf (commands, "thread apply all bt\n");
- argv [1] = "-batch";
- argv [2] = "-x";
- argv [3] = template;
- argv [4] = 0;
- }
- fflush (commands);
- fclose (commands);
-
- fclose (stdin);
-
- execv (argv [0], (char**)argv);
- unlink (template);
-#else
- fprintf (stderr, "mono_gdb_render_native_backtraces not supported on this platform\n");
-#endif // HAVE_EXECV
-}
-
gboolean
mono_thread_state_init_from_handle (MonoThreadUnwindState *tctx, MonoThreadInfo *info)
{
kern_return_t ret;
- mach_msg_type_number_t num_state;
- thread_state_t state;
- ucontext_t ctx;
- mcontext_t mctx;
+ mach_msg_type_number_t num_state, num_fpstate;
+ thread_state_t state, fpstate;
MonoJitTlsData *jit_tls;
void *domain;
MonoLMF *lmf = NULL;
tctx->unwind_data [MONO_UNWIND_DATA_JIT_TLS] = NULL;
state = (thread_state_t) alloca (mono_mach_arch_get_thread_state_size ());
- mctx = (mcontext_t) alloca (mono_mach_arch_get_mcontext_size ());
+ fpstate = (thread_state_t) alloca (mono_mach_arch_get_thread_fpstate_size ());
- ret = mono_mach_arch_get_thread_state (info->native_handle, state, &num_state);
+ do {
+ ret = mono_mach_arch_get_thread_states (info->native_handle, state, &num_state, fpstate, &num_fpstate);
+ } while (ret == KERN_ABORTED);
if (ret != KERN_SUCCESS)
return FALSE;
- mono_mach_arch_thread_state_to_mcontext (state, mctx);
- ctx.uc_mcontext = mctx;
-
- mono_sigctx_to_monoctx (&ctx, &tctx->ctx);
+ mono_mach_arch_thread_states_to_mono_context (state, fpstate, &tctx->ctx);
/* mono_set_jit_tls () sets this */
jit_tls = mono_thread_info_tls_get (info, TLS_KEY_JIT_TLS);
projects / mono.git / blobdiff