2 * mini-darwin.c: Darwin/MacOS support for Mono.
5 * Mono Team (mono-list@lists.ximian.com)
7 * Copyright 2001-2003 Ximian, Inc.
8 * Copyright 2003-2011 Novell, Inc (http://www.novell.com)
9 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
22 #ifdef HAVE_SYS_TIME_H
26 #include <mono/metadata/assembly.h>
27 #include <mono/metadata/loader.h>
28 #include <mono/metadata/tabledefs.h>
29 #include <mono/metadata/class.h>
30 #include <mono/metadata/object.h>
31 #include <mono/metadata/tokentype.h>
32 #include <mono/metadata/tabledefs.h>
33 #include <mono/metadata/threads.h>
34 #include <mono/metadata/appdomain.h>
35 #include <mono/metadata/debug-helpers.h>
36 #include <mono/io-layer/io-layer.h>
37 #include "mono/metadata/profiler.h"
38 #include <mono/metadata/profiler-private.h>
39 #include <mono/metadata/mono-config.h>
40 #include <mono/metadata/environment.h>
41 #include <mono/metadata/mono-debug.h>
42 #include <mono/metadata/threads-types.h>
43 #include <mono/metadata/verify.h>
44 #include <mono/metadata/verify-internals.h>
45 #include <mono/metadata/mempool-internals.h>
46 #include <mono/metadata/attach.h>
47 #include <mono/metadata/gc-internals.h>
48 #include <mono/utils/mono-math.h>
49 #include <mono/utils/mono-compiler.h>
50 #include <mono/utils/mono-counters.h>
51 #include <mono/utils/mono-logger-internals.h>
52 #include <mono/utils/mono-mmap.h>
53 #include <mono/utils/dtrace.h>
61 #include "jit-icalls.h"
64 #include <mach/mach.h>
65 #include <mach/mach_error.h>
66 #include <mach/exception.h>
67 #include <mach/task.h>
70 #include <AvailabilityMacros.h>
72 /* This is #define'd by Boehm GC to _GC_dlopen. */
75 void* dlopen(const char* path, int mode);
78 mono_runtime_install_handlers (void)
80 mono_runtime_posix_install_handlers ();
82 /* Snow Leopard has a horrible bug: http://openradar.appspot.com/7209349
83 * This causes obscure SIGTRAP's for any application that comes across this built on
84 * Snow Leopard. This is a horrible hack to ensure that the private __CFInitialize
85 * is run on the main thread, so that we don't get SIGTRAPs later
87 #if defined (__APPLE__) && (defined (__i386__) || defined (__x86_64__))
89 void *handle = dlopen ("/System/Library/Frameworks/CoreFoundation.framework/CoreFoundation", RTLD_LAZY);
99 mono_runtime_syscall_fork ()
102 return (pid_t) fork ();
104 g_assert_not_reached ();
109 mono_gdb_render_native_backtraces (pid_t crashed_pid)
112 const char *argv [6];
113 char template [] = "/tmp/mono-gdb-commands.XXXXXX";
115 gboolean using_lldb = FALSE;
119 argv [0] = g_find_program_in_path ("gdb");
124 argv [0] = g_find_program_in_path ("lldb");
126 if (argv [0] == NULL)
129 if (mkstemp (template) == -1)
132 commands = fopen (template, "w");
134 fprintf (commands, "process attach --pid %ld\n", (long) crashed_pid);
135 fprintf (commands, "thread list\n");
136 fprintf (commands, "thread backtrace all\n");
137 fprintf (commands, "detach\n");
138 fprintf (commands, "quit\n");
139 argv [1] = "--source";
144 fprintf (commands, "attach %ld\n", (long) crashed_pid);
145 fprintf (commands, "info threads\n");
146 fprintf (commands, " t a a info thread\n");
147 fprintf (commands, "thread apply all bt\n");
159 execv (argv [0], (char**)argv);
162 fprintf (stderr, "mono_gdb_render_native_backtraces not supported on this platform\n");
167 mono_thread_state_init_from_handle (MonoThreadUnwindState *tctx, MonoThreadInfo *info)
170 mach_msg_type_number_t num_state, num_fpstate;
171 thread_state_t state, fpstate;
174 MonoJitTlsData *jit_tls;
180 /*Zero enough state to make sure the caller doesn't confuse itself*/
182 tctx->unwind_data [MONO_UNWIND_DATA_DOMAIN] = NULL;
183 tctx->unwind_data [MONO_UNWIND_DATA_LMF] = NULL;
184 tctx->unwind_data [MONO_UNWIND_DATA_JIT_TLS] = NULL;
186 state = (thread_state_t) alloca (mono_mach_arch_get_thread_state_size ());
187 fpstate = (thread_state_t) alloca (mono_mach_arch_get_thread_fpstate_size ());
188 mctx = (mcontext_t) alloca (mono_mach_arch_get_mcontext_size ());
191 ret = mono_mach_arch_get_thread_states (info->native_handle, state, &num_state, fpstate, &num_fpstate);
192 } while (ret == KERN_ABORTED);
193 if (ret != KERN_SUCCESS)
196 mono_mach_arch_thread_states_to_mcontext (state, fpstate, mctx);
197 ctx.uc_mcontext = mctx;
199 mono_sigctx_to_monoctx (&ctx, &tctx->ctx);
201 /* mono_set_jit_tls () sets this */
202 jit_tls = mono_thread_info_tls_get (info, TLS_KEY_JIT_TLS);
203 /* SET_APPDOMAIN () sets this */
204 domain = mono_thread_info_tls_get (info, TLS_KEY_DOMAIN);
206 /*Thread already started to cleanup, can no longer capture unwind state*/
207 if (!jit_tls || !domain)
211 * The current LMF address is kept in a separate TLS variable, and its hard to read its value without
212 * arch-specific code. But the address of the TLS variable is stored in another TLS variable which
213 * can be accessed through MonoThreadInfo.
215 /* mono_set_lmf_addr () sets this */
216 addr = mono_thread_info_tls_get (info, TLS_KEY_LMF_ADDR);
221 tctx->unwind_data [MONO_UNWIND_DATA_DOMAIN] = domain;
222 tctx->unwind_data [MONO_UNWIND_DATA_JIT_TLS] = jit_tls;
223 tctx->unwind_data [MONO_UNWIND_DATA_LMF] = lmf;