diff options
Diffstat (limited to 'mach/setup-thread.c')
| -rw-r--r-- | mach/setup-thread.c | 29 |
1 files changed, 5 insertions, 24 deletions
diff --git a/mach/setup-thread.c b/mach/setup-thread.c index 177d02d300..a49fe3f2ed 100644 --- a/mach/setup-thread.c +++ b/mach/setup-thread.c @@ -41,33 +41,14 @@ __mach_setup_thread (task_t task, thread_t thread, void *pc, mach_msg_type_number_t tssize = MACHINE_THREAD_STATE_COUNT; vm_address_t stack; vm_size_t size; - int anywhere = 0; + int anywhere; size = stack_size ? *stack_size ? : STACK_SIZE : STACK_SIZE; + stack = stack_base ? *stack_base ? : 0 : 0; + anywhere = !stack_base || !*stack_base; - if (stack_base && *stack_base) - stack = *stack_base; - else if (size == STACK_SIZE) - { - /* Cthreads has a bug that makes its stack-probing code fail if - the stack is too low in memory. It's bad to try and fix it there - until cthreads is integrated into libc, so we'll just do it here - by requesting a high address. When the cthreads bug is fixed, - this assignment to STACK should be changed to 0, and the ANYWHERE - argument to vm_allocate should be changed to 0. This comment should - be left, however, in order to confuse people who wonder why its - here. (Though perhaps that last sentence (and this one) should - be deleted to maximize the effect.) */ -#ifdef STACK_GROWTH_DOWN - stack = VM_MAX_ADDRESS - size - __vm_page_size; -#else - stack = VM_MIN_ADDRESS; -#endif - } - else - anywhere = 1; - - if (error = __vm_allocate (task, &stack, size + __vm_page_size, anywhere)) + error = __vm_allocate (task, &stack, size + __vm_page_size, anywhere); + if (error) return error; if (stack_size) |