2 * mach-support-x86.c: mach support for x86
5 * Geoff Norton (gnorton@novell.com)
7 * (C) 2010 Novell, Inc.
16 #include "utils/mono-sigcontext.h"
17 #include "mach-support.h"
20 mono_mach_arch_get_ip (thread_state_t state)
22 x86_thread_state32_t *arch_state = (x86_thread_state32_t *) state;
24 return (void *) arch_state->__eip;
28 mono_mach_arch_get_sp (thread_state_t state)
30 x86_thread_state32_t *arch_state = (x86_thread_state32_t *) state;
32 return (void *) arch_state->__esp;
36 mono_mach_arch_get_mcontext_size ()
38 return sizeof (struct __darwin_mcontext32);
42 mono_mach_arch_thread_state_to_mcontext (thread_state_t state, mcontext_t context)
44 x86_thread_state32_t *arch_state = (x86_thread_state32_t *) state;
45 struct __darwin_mcontext32 *ctx = (struct __darwin_mcontext32 *) context;
47 ctx->__ss = *arch_state;
51 mono_mach_arch_mcontext_to_thread_state (mcontext_t context, thread_state_t state)
53 x86_thread_state32_t *arch_state = (x86_thread_state32_t *) state;
54 struct __darwin_mcontext32 *ctx = (struct __darwin_mcontext32 *) context;
56 *arch_state = ctx->__ss;
60 mono_mach_arch_get_thread_state_size ()
62 return sizeof (x86_thread_state32_t);
66 mono_mach_arch_get_thread_state (thread_port_t thread, thread_state_t state, mach_msg_type_number_t *count)
68 x86_thread_state32_t *arch_state = (x86_thread_state32_t *) state;
71 *count = x86_THREAD_STATE32_COUNT;
73 ret = thread_get_state (thread, x86_THREAD_STATE32, (thread_state_t) arch_state, count);
79 mono_mach_arch_set_thread_state (thread_port_t thread, thread_state_t state, mach_msg_type_number_t count)
81 return thread_set_state (thread, x86_THREAD_STATE32, state, count);
85 mono_mach_get_tls_address_from_thread (pthread_t thread, pthread_key_t key)
87 /* OSX stores TLS values in a hidden array inside the pthread_t structure
88 * They are keyed off a giant array offset 0x48 into the pointer. This value
89 * is baked into their pthread_getspecific implementation
91 intptr_t *p = (intptr_t *) thread;
92 intptr_t **tsd = (intptr_t **) ((char*)p + 0x48);
94 return (void *) &tsd [key];
98 mono_mach_arch_get_tls_value_from_thread (pthread_t thread, guint32 key)
100 return *(void**)mono_mach_get_tls_address_from_thread (thread, key);