2010-06-22 Geoff Norton <gnorton@novell.com>

[mono.git] / mono / utils / mach-support-amd64.c

diff --git a/mono/utils/mach-support-amd64.c b/mono/utils/mach-support-amd64.c
new file mode 100644 (file)
index 0000000..2cc779b
--- /dev/null
+++ b/mono/utils/mach-support-amd64.c
@@ -0,0 +1,74 @@
+/*
+ * mach-support-x86.c: mach support for x86
+ *
+ * Authors:
+ *   Geoff Norton (gnorton@novell.com)
+ *
+ * (C) 2010 Ximian, Inc.
+ */
+
+#include <config.h>
+
+#if defined(__MACH__)
+#include <stdint.h>
+#include <glib.h>
+#include <pthread.h>
+#include "utils/mono-sigcontext.h"
+#include "mach-support.h"
+
+void *
+mono_mach_arch_get_ip (thread_state_t state)
+{
+       x86_thread_state64_t *arch_state = (x86_thread_state64_t *) state;
+
+       return (void *) arch_state->__rip;
+}
+
+void *
+mono_mach_arch_get_sp (thread_state_t state)
+{
+       x86_thread_state64_t *arch_state = (x86_thread_state64_t *) state;
+
+       return (void *) arch_state->__rsp;
+}
+
+void *
+mono_mach_arch_thread_state_to_context (thread_state_t state)
+{
+       x86_thread_state64_t *arch_state = (x86_thread_state64_t *) state;
+       struct __darwin_mcontext64 *ctx;
+
+       ctx = (struct __darwin_mcontext64 *) g_new0 (struct __darwin_mcontext64, 1);
+       ctx->__ss = *arch_state;
+
+       return ctx;
+}
+
+kern_return_t
+mono_mach_arch_get_thread_state (thread_port_t thread, thread_state_t *state, mach_msg_type_number_t *count)
+{
+       x86_thread_state64_t *arch_state = (x86_thread_state64_t *) g_new0 (x86_thread_state64_t, 1);
+       kern_return_t ret;
+
+       *count = x86_THREAD_STATE64_COUNT;
+
+       ret = thread_get_state (thread, x86_THREAD_STATE64, (thread_state_t) arch_state, count);
+
+       *state = (thread_state_t) arch_state;
+
+       return ret;
+}
+
+void *
+mono_mach_arch_get_tls_value_from_thread (thread_port_t thread, guint32 key)
+{
+       /* OSX stores TLS values in a hidden array inside the pthread_t structure
+        * They are keyed off a giant array offset 0x60 into the pointer.  This value
+        * is baked into their pthread_getspecific implementation
+        */
+       intptr_t *p = (intptr_t *) pthread_from_mach_thread_np (thread);
+       intptr_t **tsd = (intptr_t **) (p + 0x60);
+
+       return (void *) tsd [key];
+}
+#endif