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-rw-r--r--mach/setup-thread.c29
1 files changed, 5 insertions, 24 deletions
diff --git a/mach/setup-thread.c b/mach/setup-thread.c
index 177d02d..a49fe3f 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)