diff options
Diffstat (limited to 'sysdeps/mach/hurd/pt-sysdep.c')
| -rw-r--r-- | sysdeps/mach/hurd/pt-sysdep.c | 34 |
1 files changed, 31 insertions, 3 deletions
diff --git a/sysdeps/mach/hurd/pt-sysdep.c b/sysdeps/mach/hurd/pt-sysdep.c index 8d40185..b23d9df 100644 --- a/sysdeps/mach/hurd/pt-sysdep.c +++ b/sysdeps/mach/hurd/pt-sysdep.c @@ -39,16 +39,31 @@ void *(*_cthread_init_routine)(void) = &init_routine; should return a new stack pointer for the main thread. The caller will switch to this new stack before doing anything serious. */ static void * -init_routine (void) +_init_routine (void *stack) { struct __pthread *thread; int err; + pthread_attr_t attr, *attrp = 0; + + if (__pthread_threads) + /* Already initialized */ + return 0; /* Initialize the library. */ - ___pthread_init (); + __pthread_init (); + + if (stack) + { + /* We are getting initialized due to dlopening a library using libpthread + while the main program was not linked against libpthread. */ + /* Avoid allocating another stack */ + attrp = &attr; + pthread_attr_init(attrp); + pthread_attr_setstack(attrp, __libc_stack_end, __vm_page_size); + } /* Create the pthread structure for the main thread (i.e. us). */ - err = __pthread_create_internal (&thread, 0, 0, 0); + err = __pthread_create_internal (&thread, attrp, 0, 0); assert_perror (err); /* XXX The caller copies the command line arguments and the environment @@ -68,3 +83,16 @@ init_routine (void) return thread->mcontext.sp; } + +static void * +init_routine (void) +{ + return _init_routine (0); +} + +#ifdef SHARED +__attribute__ ((constructor)) static void dynamic_init_routine(void) +{ + _init_routine (__libc_stack_end); +} +#endif |