int
madvise(__unused proc_t p, struct madvise_args *uap, __unused register_t *retval)
{
vm_map_t user_map;
mach_vm_offset_t start;
mach_vm_size_t size;
vm_behavior_t new_behavior;
kern_return_t result;
/*
* Since this routine is only advisory, we default to conservative
* behavior.
*/
switch (uap->behav) {
case MADV_RANDOM:
new_behavior = VM_BEHAVIOR_RANDOM;
break;
case MADV_SEQUENTIAL:
new_behavior = VM_BEHAVIOR_SEQUENTIAL;
break;
case MADV_NORMAL:
new_behavior = VM_BEHAVIOR_DEFAULT;
break;
case MADV_WILLNEED:
new_behavior = VM_BEHAVIOR_WILLNEED;
break;
case MADV_DONTNEED:
new_behavior = VM_BEHAVIOR_DONTNEED;
break;
default:
return(EINVAL);
}
start = (mach_vm_offset_t) uap->addr;
size = (mach_vm_size_t) uap->len;
user_map = current_map();
result = mach_vm_behavior_set(user_map, start, size, new_behavior);
switch (result) {
case KERN_SUCCESS:
return (0);
case KERN_INVALID_ADDRESS:
return (ENOMEM);
}
return (EINVAL);
}
"failing madvise(0x%llx,0x%llx,%s)\n",
p->p_pid, p->p_comm, start, size,
((uap->behav == MADV_FREE_REUSABLE)
? "MADV_FREE_REUSABLE"
: "MADV_FREE"));
DTRACE_VM3(fourk_compat_madvise,
uint64_t, start,
uint64_t, size,
int, uap->behav);
return EINVAL;
}
#endif /* __arm64__ */
user_map = current_map();
result = mach_vm_behavior_set(user_map, start, size, new_behavior);
switch (result) {
case KERN_SUCCESS:
return 0;
case KERN_INVALID_ADDRESS:
return EINVAL;
case KERN_NO_SPACE:
return ENOMEM;
}
return EINVAL;
}
int
mincore(__unused proc_t p, struct mincore_args *uap, __unused int32_t *retval)
{
int
madvise(__unused proc_t p, struct madvise_args *uap, __unused int32_t *retval)
{
vm_map_t user_map;
mach_vm_offset_t start;
mach_vm_size_t size;
vm_behavior_t new_behavior;
kern_return_t result;
/*
* Since this routine is only advisory, we default to conservative
* behavior.
*/
switch (uap->behav) {
case MADV_RANDOM:
new_behavior = VM_BEHAVIOR_RANDOM;
break;
case MADV_SEQUENTIAL:
new_behavior = VM_BEHAVIOR_SEQUENTIAL;
break;
case MADV_NORMAL:
new_behavior = VM_BEHAVIOR_DEFAULT;
break;
case MADV_WILLNEED:
new_behavior = VM_BEHAVIOR_WILLNEED;
break;
case MADV_DONTNEED:
new_behavior = VM_BEHAVIOR_DONTNEED;
break;
case MADV_FREE:
new_behavior = VM_BEHAVIOR_FREE;
break;
case MADV_ZERO_WIRED_PAGES:
new_behavior = VM_BEHAVIOR_ZERO_WIRED_PAGES;
break;
case MADV_FREE_REUSABLE:
new_behavior = VM_BEHAVIOR_REUSABLE;
break;
case MADV_FREE_REUSE:
new_behavior = VM_BEHAVIOR_REUSE;
break;
case MADV_CAN_REUSE:
new_behavior = VM_BEHAVIOR_CAN_REUSE;
break;
case MADV_PAGEOUT:
#if MACH_ASSERT
new_behavior = VM_BEHAVIOR_PAGEOUT;
break;
#else /* MACH_ASSERT */
return ENOTSUP;
#endif /* MACH_ASSERT */
default:
return(EINVAL);
}
start = (mach_vm_offset_t) uap->addr;
size = (mach_vm_size_t) uap->len;
user_map = current_map();
result = mach_vm_behavior_set(user_map, start, size, new_behavior);
switch (result) {
case KERN_SUCCESS:
return 0;
case KERN_INVALID_ADDRESS:
return EINVAL;
case KERN_NO_SPACE:
return ENOMEM;
}
return EINVAL;
}