#include "genesis/symbol.h"
#include "genesis/static-symbols.h"
#include "genesis/thread.h"
+#include "genesis/fdefn.h"
-#define STATE_STARTING (make_fixnum(0))
#define STATE_RUNNING (make_fixnum(1))
#define STATE_SUSPENDED (make_fixnum(2))
#define STATE_DEAD (make_fixnum(3))
+#ifdef LISP_FEATURE_SB_THREAD
+
+/* Only access thread state with blockables blocked. */
+static inline lispobj
+thread_state(struct thread *thread)
+{
+ lispobj state;
+ pthread_mutex_lock(thread->state_lock);
+ state = thread->state;
+ pthread_mutex_unlock(thread->state_lock);
+ return state;
+}
+
+static inline void
+set_thread_state(struct thread *thread, lispobj state)
+{
+ pthread_mutex_lock(thread->state_lock);
+ thread->state = state;
+ pthread_cond_broadcast(thread->state_cond);
+ pthread_mutex_unlock(thread->state_lock);
+}
+
+static inline void
+wait_for_thread_state_change(struct thread *thread, lispobj state)
+{
+ pthread_mutex_lock(thread->state_lock);
+ while (thread->state == state)
+ pthread_cond_wait(thread->state_cond, thread->state_lock);
+ pthread_mutex_unlock(thread->state_lock);
+}
+
+#endif
+
+extern int kill_safely(os_thread_t os_thread, int signal);
+
#define THREAD_SLOT_OFFSET_WORDS(c) \
(offsetof(struct thread,c)/(sizeof (struct thread *)))
lispobj dynamic_values[1]; /* actually more like 4000 or so */
};
-extern struct thread * volatile all_threads;
+extern struct thread *all_threads;
extern int dynamic_values_bytes;
+#if defined(LISP_FEATURE_DARWIN)
+#define CONTROL_STACK_ALIGNMENT_BYTES 8192 /* darwin wants page-aligned stacks */
+#define THREAD_ALIGNMENT_BYTES CONTROL_STACK_ALIGNMENT_BYTES
+#else
+#define THREAD_ALIGNMENT_BYTES BACKEND_PAGE_BYTES
+#define CONTROL_STACK_ALIGNMENT_BYTES 16
+#endif
+
+
#ifdef LISP_FEATURE_SB_THREAD
#define for_each_thread(th) for(th=all_threads;th;th=th->next)
#else
#define for_each_thread(th) for(th=all_threads;th;th=0)
#endif
-static inline lispobj SymbolValue(u64 tagged_symbol_pointer, void *thread) {
+static inline lispobj *
+SymbolValueAddress(u64 tagged_symbol_pointer, void *thread)
+{
+ struct symbol *sym= (struct symbol *)
+ (pointer_sized_uint_t)(tagged_symbol_pointer-OTHER_POINTER_LOWTAG);
+#ifdef LISP_FEATURE_SB_THREAD
+ if(thread && sym->tls_index) {
+ lispobj *r = &(((union per_thread_data *)thread)
+ ->dynamic_values[fixnum_value(sym->tls_index)]);
+ if((*r)!=NO_TLS_VALUE_MARKER_WIDETAG) return r;
+ }
+#endif
+ return &sym->value;
+}
+
+static inline lispobj
+SymbolValue(u64 tagged_symbol_pointer, void *thread)
+{
struct symbol *sym= (struct symbol *)
(pointer_sized_uint_t)(tagged_symbol_pointer-OTHER_POINTER_LOWTAG);
#ifdef LISP_FEATURE_SB_THREAD
#endif
return sym->value;
}
-static inline lispobj SymbolTlValue(u64 tagged_symbol_pointer, void *thread) {
+
+static inline lispobj
+SymbolTlValue(u64 tagged_symbol_pointer, void *thread)
+{
struct symbol *sym= (struct symbol *)
(pointer_sized_uint_t)(tagged_symbol_pointer-OTHER_POINTER_LOWTAG);
#ifdef LISP_FEATURE_SB_THREAD
#endif
}
-static inline void SetSymbolValue(u64 tagged_symbol_pointer,lispobj val, void *thread) {
+static inline void
+SetSymbolValue(u64 tagged_symbol_pointer,lispobj val, void *thread)
+{
struct symbol *sym= (struct symbol *)
(pointer_sized_uint_t)(tagged_symbol_pointer-OTHER_POINTER_LOWTAG);
#ifdef LISP_FEATURE_SB_THREAD
#endif
sym->value = val;
}
-static inline void SetTlSymbolValue(u64 tagged_symbol_pointer,lispobj val, void *thread) {
+
+static inline void
+SetTlSymbolValue(u64 tagged_symbol_pointer,lispobj val, void *thread)
+{
#ifdef LISP_FEATURE_SB_THREAD
struct symbol *sym= (struct symbol *)
(pointer_sized_uint_t)(tagged_symbol_pointer-OTHER_POINTER_LOWTAG);
#endif
}
-static inline os_context_t *get_interrupt_context_for_thread(struct thread *th)
+/* This only works for static symbols. */
+static inline lispobj
+StaticSymbolFunction(lispobj sym)
{
- return th->interrupt_contexts
- [fixnum_value(SymbolValue(FREE_INTERRUPT_CONTEXT_INDEX,th)-1)];
+ return ((struct fdefn *)native_pointer(SymbolValue(sym, 0)))->fun;
}
+#if defined(LISP_FEATURE_SB_THREAD) && defined(LISP_FEATURE_GCC_TLS)
+extern __thread struct thread *current_thread;
+#endif
+
/* This is clearly per-arch and possibly even per-OS code, but we can't
* put it somewhere sensible like x86-linux-os.c because it needs too
* much stuff like struct thread and all_threads to be defined, which
* usually aren't by that time. So, it's here instead. Sorry */
-static inline struct thread *arch_os_get_current_thread() {
+static inline struct thread *arch_os_get_current_thread(void)
+{
#if defined(LISP_FEATURE_SB_THREAD)
#if defined(LISP_FEATURE_X86)
register struct thread *me=0;
- if(all_threads)
+ if(all_threads) {
+#if defined(LISP_FEATURE_DARWIN) && defined(LISP_FEATURE_RESTORE_FS_SEGMENT_REGISTER_FROM_TLS)
+ sel_t sel;
+ struct thread *th = pthread_getspecific(specials);
+ sel.index = th->tls_cookie;
+ sel.rpl = USER_PRIV;
+ sel.ti = SEL_LDT;
+ __asm__ __volatile__ ("movw %w0, %%fs" : : "r"(sel));
+#elif defined(LISP_FEATURE_FREEBSD)
+#ifdef LISP_FEATURE_GCC_TLS
+ struct thread *th = current_thread;
+#else
+ struct thread *th = pthread_getspecific(specials);
+#endif
+#ifdef LISP_FEATURE_RESTORE_TLS_SEGMENT_REGISTER_FROM_TLS
+ unsigned int sel = LSEL(th->tls_cookie, SEL_UPL);
+ unsigned int fs = rfs();
+
+ /* Load FS only if it's necessary. Modifying a selector
+ * causes privilege checking and it takes long time. */
+ if (fs != sel)
+ load_fs(sel);
+#endif
+ return th;
+#endif
__asm__ __volatile__ ("movl %%fs:%c1,%0" : "=r" (me)
: "i" (offsetof (struct thread,this)));
+ }
return me;
#else
+#ifdef LISP_FEATURE_GCC_TLS
+ return current_thread;
+#else
return pthread_getspecific(specials);
+#endif
#endif /* x86 */
#else
return all_threads;
#endif
}
-#if defined(LISP_FEATURE_SB_THREAD)
-#define thread_self pthread_self
-#define thread_kill pthread_kill
-#define thread_sigmask pthread_sigmask
-#else
-#define thread_self getpid
-#define thread_kill kill
-#define thread_sigmask sigprocmask
+#if defined(LISP_FEATURE_MACH_EXCEPTION_HANDLER)
+#define THREAD_STRUCT_TO_EXCEPTION_PORT(th) ((mach_port_t) th)
+#define EXCEPTION_PORT_TO_THREAD_STRUCT(th) ((struct thread *) th)
#endif
extern void create_initial_thread(lispobj);
projects / sbcl.git / blobdiff