1 /* Our pthread support normally needs to intercept a number of thread */ 2 /* calls. We arrange to do that here, if appropriate. */ 3 4 #ifndef GC_PTHREAD_REDIRECTS_H 5 6 #define GC_PTHREAD_REDIRECTS_H 7 8 #if defined(GC_SOLARIS_THREADS) 9 /* We need to intercept calls to many of the threads primitives, so */ 10 /* that we can locate thread stacks and stop the world. */ 11 /* Note also that the collector cannot see thread specific data. */ 12 /* Thread specific data should generally consist of pointers to */ 13 /* uncollectable objects (allocated with GC_malloc_uncollectable, */ 14 /* not the system malloc), which are deallocated using the destructor */ 15 /* facility in thr_keycreate. Alternatively, keep a redundant pointer */ 16 /* to thread specific data on the thread stack. */ 17 # include <thread.h> 18 int GC_thr_create(void *stack_base, size_t stack_size, 19 void *(*start_routine)(void *), void *arg, long flags, 20 thread_t *new_thread); 21 int GC_thr_join(thread_t wait_for, thread_t *departed, void **status); 22 int GC_thr_suspend(thread_t target_thread); 23 int GC_thr_continue(thread_t target_thread); 24 void * GC_dlopen(const char *path, int mode); 25 # define thr_create GC_thr_create 26 # define thr_join GC_thr_join 27 # define thr_suspend GC_thr_suspend 28 # define thr_continue GC_thr_continue 29 #endif /* GC_SOLARIS_THREADS */ 30 31 #if defined(GC_SOLARIS_PTHREADS) 32 # include <pthread.h> 33 # include <signal.h> 34 extern int GC_pthread_create(pthread_t *new_thread, 35 const pthread_attr_t *attr, 36 void * (*thread_execp)(void *), void *arg); 37 extern int GC_pthread_join(pthread_t wait_for, void **status); 38 extern int GC_pthread_detach(pthread_t thread); 39 # define pthread_join GC_pthread_join 40 # define pthread_create GC_pthread_create 41 # define pthread_detach GC_pthread_detach 42 #endif 43 44 #if defined(GC_SOLARIS_PTHREADS) || defined(GC_SOLARIS_THREADS) 45 # define dlopen GC_dlopen 46 #endif /* SOLARIS_THREADS || SOLARIS_PTHREADS */ 47 48 49 #if !defined(GC_USE_LD_WRAP) && (defined(GC_PTHREADS) || defined(GC_DARWIN_THREADS) || defined(GC_MACOSX_THREADS)) && !defined(GC_SOLARIS_PTHREADS) 50 /* We treat these similarly. */ 51 # include <pthread.h> 52 # include <signal.h> 53 54 int GC_pthread_create(pthread_t *new_thread, 55 const pthread_attr_t *attr, 56 void *(*start_routine)(void *), void *arg); 57 #ifndef GC_DARWIN_THREADS 58 int GC_pthread_sigmask(int how, const sigset_t *set, sigset_t *oset); 59 #endif 60 int GC_pthread_join(pthread_t thread, void **retval); 61 int GC_pthread_detach(pthread_t thread); 62 #if defined(__native_client__) || defined(NACL) 63 void GC_pthread_exit(void *status); 64 # undef pthread_exit 65 # define pthread_exit GC_pthread_exit 66 #endif 67 68 #if defined(GC_OSF1_THREADS) \ 69 && defined(_PTHREAD_USE_MANGLED_NAMES_) && !defined(_PTHREAD_USE_PTDNAM_) 70 /* Unless the compiler supports #pragma extern_prefix, the Tru64 UNIX 71 <pthread.h> redefines some POSIX thread functions to use mangled names. 72 If so, undef them before redefining. */ 73 # undef pthread_create 74 # undef pthread_join 75 # undef pthread_detach 76 #endif 77 78 # define pthread_create GC_pthread_create 79 # define pthread_join GC_pthread_join 80 # define pthread_detach GC_pthread_detach 81 82 #ifndef GC_DARWIN_THREADS 83 # ifdef GC_NETBSD_THREADS 84 # undef pthread_sigmask 85 # endif 86 # define pthread_sigmask GC_pthread_sigmask 87 # define dlopen GC_dlopen 88 #endif 89 90 #endif /* GC_xxxxx_THREADS */ 91 92 #endif /* GC_PTHREAD_REDIRECTS_H */ 93