diff options
Diffstat (limited to 'sys/kern/kern_exec.c')
| -rw-r--r-- | sys/kern/kern_exec.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/sys/kern/kern_exec.c b/sys/kern/kern_exec.c index 42de9ed..b0c107c 100644 --- a/sys/kern/kern_exec.c +++ b/sys/kern/kern_exec.c @@ -894,6 +894,7 @@ exec_new_vmspace(imgp, sv) struct vmspace *vmspace = p->p_vmspace; vm_offset_t stack_addr; vm_map_t map; + u_long ssiz; imgp->vmspace_destroyed = 1; imgp->sysent = sv; @@ -919,8 +920,12 @@ exec_new_vmspace(imgp, sv) } /* Allocate a new stack */ - stack_addr = sv->sv_usrstack - maxssiz; - error = vm_map_stack(map, stack_addr, (vm_size_t)maxssiz, + if (sv->sv_maxssiz != NULL) + ssiz = *sv->sv_maxssiz; + else + ssiz = maxssiz; + stack_addr = sv->sv_usrstack - ssiz; + error = vm_map_stack(map, stack_addr, (vm_size_t)ssiz, sv->sv_stackprot, VM_PROT_ALL, MAP_STACK_GROWS_DOWN); if (error) return (error); @@ -928,7 +933,7 @@ exec_new_vmspace(imgp, sv) #ifdef __ia64__ /* Allocate a new register stack */ stack_addr = IA64_BACKINGSTORE; - error = vm_map_stack(map, stack_addr, (vm_size_t)maxssiz, + error = vm_map_stack(map, stack_addr, (vm_size_t)ssiz, sv->sv_stackprot, VM_PROT_ALL, MAP_STACK_GROWS_UP); if (error) return (error); @@ -939,7 +944,7 @@ exec_new_vmspace(imgp, sv) * process stack so we can check the stack rlimit. */ vmspace->vm_ssize = sgrowsiz >> PAGE_SHIFT; - vmspace->vm_maxsaddr = (char *)sv->sv_usrstack - maxssiz; + vmspace->vm_maxsaddr = (char *)sv->sv_usrstack - ssiz; return (0); } |
