diff options
Diffstat (limited to 'linuxthreads/pthread.c')
| -rw-r--r-- | linuxthreads/pthread.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/linuxthreads/pthread.c b/linuxthreads/pthread.c index ea35c724d9..643e52fea6 100644 --- a/linuxthreads/pthread.c +++ b/linuxthreads/pthread.c @@ -30,6 +30,7 @@ #include "internals.h" #include "spinlock.h" #include "restart.h" +#include <stackinfo.h> /* We need the global/static resolver state here. */ #include <resolv.h> @@ -412,11 +413,17 @@ static void pthread_initialize(void) /* Test if compare-and-swap is available */ __pthread_has_cas = compare_and_swap_is_available(); #endif +#ifdef _STACK_GROWS_UP + /* The initial thread already has all the stack it needs */ + __pthread_initial_thread_bos = (char *) + ((long)CURRENT_STACK_FRAME &~ (STACK_SIZE - 1)); +#else /* For the initial stack, reserve at least STACK_SIZE bytes of stack below the current stack address, and align that on a STACK_SIZE boundary. */ __pthread_initial_thread_bos = (char *)(((long)CURRENT_STACK_FRAME - 2 * STACK_SIZE) & ~(STACK_SIZE - 1)); +#endif /* Update the descriptor for the initial thread. */ __pthread_initial_thread.p_pid = __getpid(); /* Likewise for the resolver state _res. */ @@ -544,6 +551,11 @@ int __pthread_initialize_manager(void) THREAD_MANAGER_STACK_SIZE, CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, (void *)(long)manager_pipe[0]); +#elif _STACK_GROWS_UP + pid = __clone(__pthread_manager_event, + (void **) __pthread_manager_thread_bos, + CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, + (void *)(long)manager_pipe[0]); #else pid = __clone(__pthread_manager_event, (void **) __pthread_manager_thread_tos, @@ -580,6 +592,10 @@ int __pthread_initialize_manager(void) THREAD_MANAGER_STACK_SIZE, CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, (void *)(long)manager_pipe[0]); +#elif _STACK_GROWS_UP + pid = __clone(__pthread_manager, (void **) __pthread_manager_thread_bos, + CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, + (void *)(long)manager_pipe[0]); #else pid = __clone(__pthread_manager, (void **) __pthread_manager_thread_tos, CLONE_VM | CLONE_FS | CLONE_FILES | CLONE_SIGHAND, |