src/sys/uvm/uvm_mmap.c - diff

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version 1.163, 2017/04/29 01:18:35

version 1.164, 2017/05/06 21:34:52

Line 287 sys_mmap(struct lwp *l, const struct sys

vaddr_t addr;

off_t pos;

vsize_t size, pageoff, newsize;

vm_prot_t prot, maxprot;

vm_prot_t prot, maxprot, extraprot;

int flags, fd, advice;

vaddr_t defaddr;

struct file *fp = NULL;

Line 304 sys_mmap(struct lwp *l, const struct sys

addr = (vaddr_t)SCARG(uap, addr);

size = (vsize_t)SCARG(uap, len);

prot = SCARG(uap, prot) & VM_PROT_ALL;

extraprot = PROT_MPROTECT_EXTRACT(SCARG(uap, prot));

flags = SCARG(uap, flags);

fd = SCARG(uap, fd);

pos = SCARG(uap, pos);

Line 396 sys_mmap(struct lwp *l, const struct sys

Line 397 sys_mmap(struct lwp *l, const struct sys

pos = 0;

}

PAX_MPROTECT_ADJUST(l, &prot, &maxprot);

maxprot = PAX_MPROTECT_MAXPROTECT(l, prot, extraprot, maxprot);

if (((prot | extraprot) & maxprot) != (prot | extraprot))

return EACCES;

if ((error = PAX_MPROTECT_VALIDATE(l, prot)))

return error;

pax_aslr_mmap(l, &addr, orig_addr, flags);

Line 612 sys_mprotect(struct lwp *l, const struct

Line 617 sys_mprotect(struct lwp *l, const struct

if (error)

return EINVAL;

error = uvm_map_protect(&p->p_vmspace->vm_map, addr, addr + size, prot,

error = uvm_map_protect_user(l, addr, addr + size, prot);

false);

return error;

}