3 #if defined(HAVE_SGEN_GC) && !defined(USE_COOP_GC) && defined(HOST_WIN32)
5 #include "io-layer/io-layer.h"
7 #include "sgen/sgen-gc.h"
8 #include "metadata/gc-internals.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 && result > 0;
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)
61 memset (&info->client_info.ctx, 0, sizeof (MonoContext));
63 info->client_info.ctx.gregs[AMD64_RIP] = context.Rip;
64 info->client_info.ctx.gregs[AMD64_RAX] = context.Rax;
65 info->client_info.ctx.gregs[AMD64_RCX] = context.Rcx;
66 info->client_info.ctx.gregs[AMD64_RDX] = context.Rdx;
67 info->client_info.ctx.gregs[AMD64_RBX] = context.Rbx;
68 info->client_info.ctx.gregs[AMD64_RSP] = context.Rsp;
69 info->client_info.ctx.gregs[AMD64_RBP] = context.Rbp;
70 info->client_info.ctx.gregs[AMD64_RSI] = context.Rsi;
71 info->client_info.ctx.gregs[AMD64_RDI] = context.Rdi;
72 info->client_info.ctx.gregs[AMD64_R8] = context.R8;
73 info->client_info.ctx.gregs[AMD64_R9] = context.R9;
74 info->client_info.ctx.gregs[AMD64_R10] = context.R10;
75 info->client_info.ctx.gregs[AMD64_R11] = context.R11;
76 info->client_info.ctx.gregs[AMD64_R12] = context.R12;
77 info->client_info.ctx.gregs[AMD64_R13] = context.R13;
78 info->client_info.ctx.gregs[AMD64_R14] = context.R14;
79 info->client_info.ctx.gregs[AMD64_R15] = context.R15;
80 info->client_info.stopped_ip = info->client_info.ctx.gregs[AMD64_RIP];
81 info->client_info.stack_start = (char*)info->client_info.ctx.gregs[AMD64_RSP] - REDZONE_SIZE;
83 info->client_info.ctx.edi = context.Edi;
84 info->client_info.ctx.esi = context.Esi;
85 info->client_info.ctx.ebx = context.Ebx;
86 info->client_info.ctx.edx = context.Edx;
87 info->client_info.ctx.ecx = context.Ecx;
88 info->client_info.ctx.eax = context.Eax;
89 info->client_info.ctx.ebp = context.Ebp;
90 info->client_info.ctx.esp = context.Esp;
91 info->client_info.stopped_ip = (gpointer)context.Eip;
92 info->client_info.stack_start = (char*)context.Esp - REDZONE_SIZE;
97 if (mono_gc_get_gc_callbacks ()->thread_suspend_func)
98 mono_gc_get_gc_callbacks ()->thread_suspend_func (info->client_info.runtime_data, NULL, NULL);
104 sgen_wait_for_suspend_ack (int count)
106 /* Win32 suspend/resume is synchronous, so we don't need to wait for anything */
110 sgen_thread_handshake (BOOL suspend)
112 SgenThreadInfo *current = mono_thread_info_current ();
115 current->client_info.suspend_done = TRUE;
116 FOREACH_THREAD (info) {
119 info->client_info.suspend_done = FALSE;
120 if (info->client_info.gc_disabled)
123 if (!sgen_suspend_thread (info))
126 if (!sgen_resume_thread (info))
140 mono_gc_get_suspend_signal (void)