3 #if defined(HAVE_SGEN_GC) && defined(HOST_WIN32)
5 #include "io-layer/io-layer.h"
7 #include "sgen/sgen-gc.h"
8 #include "metadata/gc-internal.h"
11 sgen_resume_thread (SgenThreadInfo *info)
13 DWORD id = mono_thread_info_get_tid (info);
14 HANDLE handle = OpenThread (THREAD_ALL_ACCESS, FALSE, id);
19 result = ResumeThread (handle);
20 g_assert (result != (DWORD)-1);
24 return result != (DWORD)-1;
28 sgen_suspend_thread (SgenThreadInfo *info)
30 DWORD id = mono_thread_info_get_tid (info);
31 HANDLE handle = OpenThread (THREAD_ALL_ACCESS, FALSE, id);
35 g_assert (id != GetCurrentThreadId ());
39 result = SuspendThread (handle);
40 if (result == (DWORD)-1) {
41 fprintf (stderr, "could not suspend thread %x (handle %p): %d\n", id, handle, GetLastError ()); fflush (stderr);
46 context.ContextFlags = CONTEXT_INTEGER | CONTEXT_CONTROL;
48 if (!GetThreadContext (handle, &context)) {
49 g_assert_not_reached ();
50 ResumeThread (handle);
55 g_assert (context.ContextFlags & CONTEXT_INTEGER);
56 g_assert (context.ContextFlags & CONTEXT_CONTROL);
60 #if !defined(MONO_CROSS_COMPILE)
62 memset (&info->client_info.ctx, 0, sizeof (MonoContext));
64 info->client_info.ctx.rip = context.Rip;
65 info->client_info.ctx.rax = context.Rax;
66 info->client_info.ctx.rcx = context.Rcx;
67 info->client_info.ctx.rdx = context.Rdx;
68 info->client_info.ctx.rbx = context.Rbx;
69 info->client_info.ctx.rsp = context.Rsp;
70 info->client_info.ctx.rbp = context.Rbp;
71 info->client_info.ctx.rsi = context.Rsi;
72 info->client_info.ctx.rdi = context.Rdi;
73 info->client_info.ctx.r8 = context.R8;
74 info->client_info.ctx.r9 = context.R9;
75 info->client_info.ctx.r10 = context.R10;
76 info->client_info.ctx.r11 = context.R11;
77 info->client_info.ctx.r12 = context.R12;
78 info->client_info.ctx.r13 = context.R13;
79 info->client_info.ctx.r14 = context.R14;
80 info->client_info.ctx.r15 = context.R15;
81 info->client_info.stopped_ip = info->client_info.ctx.rip;
82 info->client_info.stack_start = (char*)info->client_info.ctx.rsp - REDZONE_SIZE;
84 info->client_info.ctx.edi = context.Edi;
85 info->client_info.ctx.esi = context.Esi;
86 info->client_info.ctx.ebx = context.Ebx;
87 info->client_info.ctx.edx = context.Edx;
88 info->client_info.ctx.ecx = context.Ecx;
89 info->client_info.ctx.eax = context.Eax;
90 info->client_info.ctx.ebp = context.Ebp;
91 info->client_info.ctx.esp = context.Esp;
92 info->client_info.stopped_ip = (gpointer)context.Eip;
93 info->client_info.stack_start = (char*)context.Esp - REDZONE_SIZE;
97 info->client_info.regs [0] = context.Edi;
98 info->client_info.regs [1] = context.Esi;
99 info->client_info.regs [2] = context.Ebx;
100 info->client_info.regs [3] = context.Edx;
101 info->client_info.regs [4] = context.Ecx;
102 info->client_info.regs [5] = context.Eax;
103 info->client_info.regs [6] = context.Ebp;
104 info->client_info.regs [7] = context.Esp;
105 info->client_info.stopped_ip = (gpointer)context.Eip;
106 info->client_info.stack_start = (char*)context.Esp - REDZONE_SIZE;
111 if (mono_gc_get_gc_callbacks ()->thread_suspend_func)
112 mono_gc_get_gc_callbacks ()->thread_suspend_func (info->client_info.runtime_data, NULL, NULL);
118 sgen_wait_for_suspend_ack (int count)
120 /* Win32 suspend/resume is synchronous, so we don't need to wait for anything */
124 sgen_thread_handshake (BOOL suspend)
126 SgenThreadInfo *info;
127 SgenThreadInfo *current = mono_thread_info_current ();
130 current->client_info.suspend_done = TRUE;
131 FOREACH_THREAD_SAFE (info) {
134 info->client_info.suspend_done = FALSE;
135 if (info->client_info.gc_disabled)
138 if (!sgen_suspend_thread (info))
141 if (!sgen_resume_thread (info))
145 } END_FOREACH_THREAD_SAFE
155 mono_gc_get_suspend_signal (void)