diff options
author | John Baldwin <jhb@FreeBSD.org> | 2007-07-12 18:01:31 +0000 |
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committer | John Baldwin <jhb@FreeBSD.org> | 2007-07-12 18:01:31 +0000 |
commit | 59d8f3ff083f7395b85f30888af849eeca42967e (patch) | |
tree | c78cff16168bf26e653ac32e1c954ba6ed15af12 /sys/kern/kern_exec.c | |
parent | c4ed2c08adfbde9a3d523861dde48ff3914012f9 (diff) | |
download | src-59d8f3ff083f7395b85f30888af849eeca42967e.tar.gz src-59d8f3ff083f7395b85f30888af849eeca42967e.zip |
Notes
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 42de9edbb742..b0c107c00616 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); } |