-
#if !defined(_INCLUDE_THREAD_H_)
#define _INCLUDE_THREAD_H_
#include <sys/types.h>
#include <unistd.h>
-#include "runtime.h"
+#include <stddef.h>
#include "sbcl.h"
+#include "globals.h"
+#include "runtime.h"
#include "os.h"
#include "interrupt.h"
#ifdef LISP_FEATURE_GENCGC
#include "genesis/static-symbols.h"
#include "genesis/thread.h"
+#define STATE_RUNNING (make_fixnum(1))
+#define STATE_SUSPENDED (make_fixnum(2))
+#define STATE_DEAD (make_fixnum(3))
+
#define THREAD_SLOT_OFFSET_WORDS(c) \
(offsetof(struct thread,c)/(sizeof (struct thread *)))
union per_thread_data {
struct thread thread;
- lispobj dynamic_values[1]; /* actually more like 4000 or so */
+ lispobj dynamic_values[1]; /* actually more like 4000 or so */
};
-extern struct thread *all_threads;
+extern struct thread * volatile all_threads;
extern int dynamic_values_bytes;
-extern struct thread *find_thread_by_pid(pid_t pid);
#ifdef LISP_FEATURE_SB_THREAD
#define for_each_thread(th) for(th=all_threads;th;th=th->next)
#define for_each_thread(th) for(th=all_threads;th;th=0)
#endif
-static inline lispobj SymbolValue(u32 tagged_symbol_pointer, void *thread) {
+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);
+ (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!=UNBOUND_MARKER_WIDETAG) return r;
+ 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 SymbolTlValue(u32 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);
+ (pointer_sized_uint_t)(tagged_symbol_pointer-OTHER_POINTER_LOWTAG);
#ifdef LISP_FEATURE_SB_THREAD
return ((union per_thread_data *)thread)
- ->dynamic_values[fixnum_value(sym->tls_index)];
+ ->dynamic_values[fixnum_value(sym->tls_index)];
#else
return sym->value;
#endif
}
-static inline void SetSymbolValue(u32 tagged_symbol_pointer,lispobj val, void *thread) {
- struct symbol *sym= (struct symbol *)
- (pointer_sized_uint_t)(tagged_symbol_pointer-OTHER_POINTER_LOWTAG);
+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
if(thread && sym->tls_index) {
- lispobj *pr= &(((union per_thread_data *)thread)
- ->dynamic_values[fixnum_value(sym->tls_index)]);
- if(*pr!= UNBOUND_MARKER_WIDETAG) {
- *pr=val;
- return;
- }
+ lispobj *pr= &(((union per_thread_data *)thread)
+ ->dynamic_values[fixnum_value(sym->tls_index)]);
+ if(*pr!=NO_TLS_VALUE_MARKER_WIDETAG) {
+ *pr=val;
+ return;
+ }
}
#endif
sym->value = val;
}
-static inline void SetTlSymbolValue(u32 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);
+ struct symbol *sym= (struct symbol *)
+ (pointer_sized_uint_t)(tagged_symbol_pointer-OTHER_POINTER_LOWTAG);
((union per_thread_data *)thread)
- ->dynamic_values[fixnum_value(sym->tls_index)]
- =val;
+ ->dynamic_values[fixnum_value(sym->tls_index)]
+ =val;
#else
SetSymbolValue(tagged_symbol_pointer,val,thread) ;
#endif
}
-static inline os_context_t *get_interrupt_context_for_thread(struct thread *th)
+static inline
+os_context_t *get_interrupt_context_for_thread(struct thread *th)
{
return th->interrupt_contexts
- [fixnum_value(SymbolValue(FREE_INTERRUPT_CONTEXT_INDEX,th)-1)];
+ [fixnum_value(SymbolValue(FREE_INTERRUPT_CONTEXT_INDEX,th)-1)];
+}
+
+/* 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() {
+#if defined(LISP_FEATURE_SB_THREAD)
+#if defined(LISP_FEATURE_X86)
+ register struct thread *me=0;
+ 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) && defined(LISP_FEATURE_RESTORE_TLS_SEGMENT_REGISTER_FROM_TLS)
+ struct thread *th = pthread_getspecific(specials);
+ 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);
+ return th;
+#endif
+ __asm__ __volatile__ ("movl %%fs:%c1,%0" : "=r" (me)
+ : "i" (offsetof (struct thread,this)));
+ }
+ return me;
+#else
+ return pthread_getspecific(specials);
+#endif /* x86 */
+#else
+ return all_threads;
+#endif
}
+#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
+
+#if defined(LISP_FEATURE_SB_THREAD)
+#define thread_self pthread_self
+#define thread_kill pthread_kill
+#define thread_sigmask pthread_sigmask
+#define thread_mutex_lock(l) pthread_mutex_lock(l)
+#define thread_mutex_unlock(l) pthread_mutex_unlock(l)
+#else
+#define thread_self getpid
+#define thread_kill kill
+#define thread_sigmask sigprocmask
+#define thread_mutex_lock(l) 0
+#define thread_mutex_unlock(l) 0
+#endif
-int arch_os_thread_init(struct thread *thread);
-extern struct thread *arch_os_get_current_thread();
+extern void create_initial_thread(lispobj);
+extern int kill_thread_safely(os_thread_t os_thread, int signo);
#endif /* _INCLUDE_THREAD_H_ */
projects / sbcl.git / blobdiff