int main(int argc, char **argv)
{
const char *path = "/usr/share/dict/words";
if (argc > 1)
path = argv[1];
std::cout << "Loading words from " << path << '\n';
test_vector vec;
std::vector<int> series;
std::mt19937 rnd;
test_map m;
load_words(path, vec);
assert(vec.size() >= 1000);
std::cout << "Working with " << vec.size() << " items\n";
std::sort(vec.begin(), vec.end());
rnd.seed(5);
int all_sum = 0;
for (unsigned int i = 0; i < vec.size(); i++) {
all_sum += vec[i].second;
series.push_back(all_sum);
}
std::cout << "Inserting...\n";
for (unsigned int i = 0; i < vec.size(); i++) {
m.insert(vec[i]);
range_test(rnd, m, vec, series, i + 1);
assert(m.sum().sum == series[i]);
}
std::cout << "Sum: " << m.sum().sum << '\n';
std::cout << "Removing...\n";
for (int i = vec.size() - 1; i >= 0; i--) {
assert(m.sum().sum == series[i]);
m.erase(vec[i].first);
range_test(rnd, m, vec, series, i);
}
assert(m.sum().sum == 0);
return 0;
}
int
sys_minherit(struct lwp *l, const struct sys_minherit_args *uap, register_t *retval)
{
/* {
syscallarg(void *) addr;
syscallarg(int) len;
syscallarg(int) inherit;
} */
struct proc *p = l->l_proc;
vaddr_t addr;
vsize_t size, pageoff;
vm_inherit_t inherit;
int error;
addr = (vaddr_t)SCARG(uap, addr);
size = (vsize_t)SCARG(uap, len);
inherit = SCARG(uap, inherit);
/*
* align the address to a page boundary and adjust the size accordingly.
*/
pageoff = (addr & PAGE_MASK);
addr -= pageoff;
size += pageoff;
size = (vsize_t)round_page(size);
error = range_test(addr, size, false);
if (error)
return error;
error = uvm_map_inherit(&p->p_vmspace->vm_map, addr, addr + size,
inherit);
return error;
}
int
sys_munmap(struct lwp *l, const struct sys_munmap_args *uap, register_t *retval)
{
/* {
syscallarg(void *) addr;
syscallarg(size_t) len;
} */
struct proc *p = l->l_proc;
vaddr_t addr;
vsize_t size, pageoff;
struct vm_map *map;
struct vm_map_entry *dead_entries;
int error;
/*
* get syscall args.
*/
addr = (vaddr_t)SCARG(uap, addr);
size = (vsize_t)SCARG(uap, len);
/*
* align the address to a page boundary and adjust the size accordingly.
*/
pageoff = (addr & PAGE_MASK);
addr -= pageoff;
size += pageoff;
size = (vsize_t)round_page(size);
if (size == 0)
return (0);
error = range_test(addr, size, false);
if (error)
return error;
map = &p->p_vmspace->vm_map;
/*
* interesting system call semantic: make sure entire range is
* allocated before allowing an unmap.
*/
vm_map_lock(map);
#if 0
if (!uvm_map_checkprot(map, addr, addr + size, VM_PROT_NONE)) {
vm_map_unlock(map);
return (EINVAL);
}
#endif
uvm_unmap_remove(map, addr, addr + size, &dead_entries, NULL, 0);
vm_map_unlock(map);
if (dead_entries != NULL)
uvm_unmap_detach(dead_entries, 0);
return (0);
}
int
bbc_to_gmt(u_long *timbuf)
{
int i;
u_long tmp;
int year, month, day, hour, min, sec;
read_bbc();
sec = bbc_to_decimal(1, 0);
min = bbc_to_decimal(3, 2);
/*
* Hours are different for some reason. Makes no sense really.
*/
hour = ((bbc_registers[5] & 0x03) * 10) + bbc_registers[4];
day = bbc_to_decimal(8, 7);
month = bbc_to_decimal(10, 9);
year = bbc_to_decimal(12, 11) + 1900;
range_test(hour, 0, 23);
range_test(day, 1, 31);
range_test(month, 1, 12);
range_test(year, STARTOFTIME, 2038); /* 2038 is the end of time. */
tmp = 0;
for (i = STARTOFTIME; i < year; i++)
tmp += days_in_year(i);
if (leapyear(year) && month > FEBRUARY)
tmp++;
for (i = 1; i < month; i++)
tmp += days_in_month(i);
tmp += (day - 1);
tmp = ((tmp * 24 + hour) * 60 + min) * 60 + sec;
*timbuf = tmp;
return(1);
}
int
sys_mlock(struct lwp *l, const struct sys_mlock_args *uap, register_t *retval)
{
/* {
syscallarg(const void *) addr;
syscallarg(size_t) len;
} */
struct proc *p = l->l_proc;
vaddr_t addr;
vsize_t size, pageoff;
int error;
/*
* extract syscall args from uap
*/
addr = (vaddr_t)SCARG(uap, addr);
size = (vsize_t)SCARG(uap, len);
/*
* align the address to a page boundary and adjust the size accordingly
*/
pageoff = (addr & PAGE_MASK);
addr -= pageoff;
size += pageoff;
size = (vsize_t)round_page(size);
error = range_test(&p->p_vmspace->vm_map, addr, size, false);
if (error)
return ENOMEM;
if (atop(size) + uvmexp.wired > uvmexp.wiredmax)
return EAGAIN;
if (size + ptoa(pmap_wired_count(vm_map_pmap(&p->p_vmspace->vm_map))) >
p->p_rlimit[RLIMIT_MEMLOCK].rlim_cur)
return EAGAIN;
error = uvm_map_pageable(&p->p_vmspace->vm_map, addr, addr+size, false,
0);
if (error == EFAULT)
error = ENOMEM;
return error;
}
int
sys_munlock(struct lwp *l, const struct sys_munlock_args *uap,
register_t *retval)
{
/* {
syscallarg(const void *) addr;
syscallarg(size_t) len;
} */
struct proc *p = l->l_proc;
vaddr_t addr;
vsize_t size, pageoff;
int error;
/*
* extract syscall args from uap
*/
addr = (vaddr_t)SCARG(uap, addr);
size = (vsize_t)SCARG(uap, len);
/*
* align the address to a page boundary, and adjust the size accordingly
*/
pageoff = (addr & PAGE_MASK);
addr -= pageoff;
size += pageoff;
size = (vsize_t)round_page(size);
error = range_test(&p->p_vmspace->vm_map, addr, size, false);
if (error)
return ENOMEM;
error = uvm_map_pageable(&p->p_vmspace->vm_map, addr, addr+size, true,
0);
if (error)
return ENOMEM;
return 0;
}
int
sys_mprotect(struct lwp *l, const struct sys_mprotect_args *uap,
register_t *retval)
{
/* {
syscallarg(void *) addr;
syscallarg(size_t) len;
syscallarg(int) prot;
} */
struct proc *p = l->l_proc;
vaddr_t addr;
vsize_t size, pageoff;
vm_prot_t prot;
int error;
/*
* extract syscall args from uap
*/
addr = (vaddr_t)SCARG(uap, addr);
size = (vsize_t)SCARG(uap, len);
prot = SCARG(uap, prot) & VM_PROT_ALL;
/*
* align the address to a page boundary and adjust the size accordingly.
*/
pageoff = (addr & PAGE_MASK);
addr -= pageoff;
size += pageoff;
size = round_page(size);
error = range_test(&p->p_vmspace->vm_map, addr, size, false);
if (error)
return EINVAL;
error = uvm_map_protect(&p->p_vmspace->vm_map, addr, addr + size, prot,
false);
return error;
}
/* ARGSUSED */
int
sys_madvise(struct lwp *l, const struct sys_madvise_args *uap,
register_t *retval)
{
/* {
syscallarg(void *) addr;
syscallarg(size_t) len;
syscallarg(int) behav;
} */
struct proc *p = l->l_proc;
vaddr_t addr;
vsize_t size, pageoff;
int advice, error;
addr = (vaddr_t)SCARG(uap, addr);
size = (vsize_t)SCARG(uap, len);
advice = SCARG(uap, behav);
/*
* align the address to a page boundary, and adjust the size accordingly
*/
pageoff = (addr & PAGE_MASK);
addr -= pageoff;
size += pageoff;
size = (vsize_t)round_page(size);
error = range_test(&p->p_vmspace->vm_map, addr, size, false);
if (error)
return EINVAL;
switch (advice) {
case MADV_NORMAL:
case MADV_RANDOM:
case MADV_SEQUENTIAL:
error = uvm_map_advice(&p->p_vmspace->vm_map, addr, addr + size,
advice);
break;
case MADV_WILLNEED:
/*
* Activate all these pages, pre-faulting them in if
* necessary.
*/
error = uvm_map_willneed(&p->p_vmspace->vm_map,
addr, addr + size);
break;
case MADV_DONTNEED:
/*
* Deactivate all these pages. We don't need them
* any more. We don't, however, toss the data in
* the pages.
*/
error = uvm_map_clean(&p->p_vmspace->vm_map, addr, addr + size,
PGO_DEACTIVATE);
break;
case MADV_FREE:
/*
* These pages contain no valid data, and may be
* garbage-collected. Toss all resources, including
* any swap space in use.
*/
error = uvm_map_clean(&p->p_vmspace->vm_map, addr, addr + size,
PGO_FREE);
break;
case MADV_SPACEAVAIL:
/*
* XXXMRG What is this? I think it's:
*
* Ensure that we have allocated backing-store
* for these pages.
*
* This is going to require changes to the page daemon,
* as it will free swap space allocated to pages in core.
* There's also what to do for device/file/anonymous memory.
*/
return EINVAL;
default:
return EINVAL;
}
return error;
}
int
sys___msync13(struct lwp *l, const struct sys___msync13_args *uap,
register_t *retval)
{
/* {
syscallarg(void *) addr;
syscallarg(size_t) len;
syscallarg(int) flags;
} */
struct proc *p = l->l_proc;
vaddr_t addr;
vsize_t size, pageoff;
struct vm_map *map;
int error, flags, uvmflags;
bool rv;
/*
* extract syscall args from the uap
*/
addr = (vaddr_t)SCARG(uap, addr);
size = (vsize_t)SCARG(uap, len);
flags = SCARG(uap, flags);
/* sanity check flags */
if ((flags & ~(MS_ASYNC | MS_SYNC | MS_INVALIDATE)) != 0 ||
(flags & (MS_ASYNC | MS_SYNC | MS_INVALIDATE)) == 0 ||
(flags & (MS_ASYNC | MS_SYNC)) == (MS_ASYNC | MS_SYNC))
return EINVAL;
if ((flags & (MS_ASYNC | MS_SYNC)) == 0)
flags |= MS_SYNC;
/*
* align the address to a page boundary and adjust the size accordingly.
*/
pageoff = (addr & PAGE_MASK);
addr -= pageoff;
size += pageoff;
size = (vsize_t)round_page(size);
/*
* get map
*/
map = &p->p_vmspace->vm_map;
error = range_test(map, addr, size, false);
if (error)
return ENOMEM;
/*
* XXXCDC: do we really need this semantic?
*
* XXX Gak! If size is zero we are supposed to sync "all modified
* pages with the region containing addr". Unfortunately, we
* don't really keep track of individual mmaps so we approximate
* by flushing the range of the map entry containing addr.
* This can be incorrect if the region splits or is coalesced
* with a neighbor.
*/
if (size == 0) {
struct vm_map_entry *entry;
vm_map_lock_read(map);
rv = uvm_map_lookup_entry(map, addr, &entry);
if (rv == true) {
addr = entry->start;
size = entry->end - entry->start;
}
vm_map_unlock_read(map);
if (rv == false)
return EINVAL;
}
/*
* translate MS_ flags into PGO_ flags
*/
uvmflags = PGO_CLEANIT;
if (flags & MS_INVALIDATE)
uvmflags |= PGO_FREE;
if (flags & MS_SYNC)
uvmflags |= PGO_SYNCIO;
error = uvm_map_clean(map, addr, addr+size, uvmflags);
return error;
}
int
sys_mmap(struct lwp *l, const struct sys_mmap_args *uap, register_t *retval)
{
/* {
syscallarg(void *) addr;
syscallarg(size_t) len;
syscallarg(int) prot;
syscallarg(int) flags;
syscallarg(int) fd;
syscallarg(long) pad;
syscallarg(off_t) pos;
} */
struct proc *p = l->l_proc;
vaddr_t addr;
off_t pos;
vsize_t size, pageoff, newsize;
vm_prot_t prot, maxprot;
int flags, fd, advice;
vaddr_t defaddr;
struct file *fp = NULL;
struct uvm_object *uobj;
int error;
#ifdef PAX_ASLR
vaddr_t orig_addr;
#endif /* PAX_ASLR */
/*
* first, extract syscall args from the uap.
*/
addr = (vaddr_t)SCARG(uap, addr);
size = (vsize_t)SCARG(uap, len);
prot = SCARG(uap, prot) & VM_PROT_ALL;
flags = SCARG(uap, flags);
fd = SCARG(uap, fd);
pos = SCARG(uap, pos);
#ifdef PAX_ASLR
orig_addr = addr;
#endif /* PAX_ASLR */
/*
* Fixup the old deprecated MAP_COPY into MAP_PRIVATE, and
* validate the flags.
*/
if (flags & MAP_COPY) {
flags = (flags & ~MAP_COPY) | MAP_PRIVATE;
#if defined(COMPAT_10) && defined(__i386__)
/*
* Ancient kernel on x86 did not obey PROT_EXEC on i386 at least
* and ld.so did not turn it on. We take care of this on amd64
* in compat32.
*/
prot |= PROT_EXEC;
#endif
}
if ((flags & (MAP_SHARED|MAP_PRIVATE)) == (MAP_SHARED|MAP_PRIVATE))
return EINVAL;
/*
* align file position and save offset. adjust size.
*/
pageoff = (pos & PAGE_MASK);
pos -= pageoff;
newsize = size + pageoff; /* add offset */
newsize = (vsize_t)round_page(newsize); /* round up */
if (newsize < size)
return ENOMEM;
size = newsize;
/*
* now check (MAP_FIXED) or get (!MAP_FIXED) the "addr"
*/
if (flags & MAP_FIXED) {
/* ensure address and file offset are aligned properly */
addr -= pageoff;
if (addr & PAGE_MASK)
return EINVAL;
error = range_test(&p->p_vmspace->vm_map, addr, size, true);
if (error) {
return error;
}
} else if (addr == 0 || !(flags & MAP_TRYFIXED)) {
/*
* not fixed: make sure we skip over the largest
* possible heap for non-topdown mapping arrangements.
* we will refine our guess later (e.g. to account for
* VAC, etc)
*/
defaddr = p->p_emul->e_vm_default_addr(p,
(vaddr_t)p->p_vmspace->vm_daddr, size,
p->p_vmspace->vm_map.flags & VM_MAP_TOPDOWN);
if (addr == 0 || !(p->p_vmspace->vm_map.flags & VM_MAP_TOPDOWN))
addr = MAX(addr, defaddr);
else
addr = MIN(addr, defaddr);
}
/*
* check for file mappings (i.e. not anonymous) and verify file.
*/
advice = UVM_ADV_NORMAL;
if ((flags & MAP_ANON) == 0) {
if ((fp = fd_getfile(fd)) == NULL)
return EBADF;
if (fp->f_ops->fo_mmap == NULL) {
error = ENODEV;
goto out;
}
error = (*fp->f_ops->fo_mmap)(fp, &pos, size, prot, &flags,
&advice, &uobj, &maxprot);
if (error) {
goto out;
}
if (uobj == NULL) {
flags |= MAP_ANON;
fd_putfile(fd);
fp = NULL;
goto is_anon;
}
} else { /* MAP_ANON case */
/*
* XXX What do we do about (MAP_SHARED|MAP_PRIVATE) == 0?
*/
if (fd != -1)
return EINVAL;
is_anon: /* label for SunOS style /dev/zero */
uobj = NULL;
maxprot = VM_PROT_ALL;
pos = 0;
}
PAX_MPROTECT_ADJUST(l, &prot, &maxprot);
pax_aslr_mmap(l, &addr, orig_addr, flags);
/*
* now let kernel internal function uvm_mmap do the work.
*/
error = uvm_mmap(&p->p_vmspace->vm_map, &addr, size, prot, maxprot,
flags, advice, uobj, pos, p->p_rlimit[RLIMIT_MEMLOCK].rlim_cur);
/* remember to add offset */
*retval = (register_t)(addr + pageoff);
out:
if (fp != NULL)
fd_putfile(fd);
return error;
}
static bool
clock_to_gmt(satime_t *timbuf)
{
int i;
satime_t tmp;
int year, month, day, hour, min, sec;
if (machineid == HP_425 && mmuid == MMUID_425_E) {
/* 425e uses mcclock on the frodo utility chip */
while ((mc_read(MC_REGA) & MC_REGA_UIP) != 0)
continue;
sec = mc_read(MC_SEC);
min = mc_read(MC_MIN);
hour = mc_read(MC_HOUR);
day = mc_read(MC_DOM);
month = mc_read(MC_MONTH);
year = mc_read(MC_YEAR) + 1900;
} else {
/* Use the traditional HIL bbc for all other models */
read_bbc();
sec = bbc_to_decimal(1, 0);
min = bbc_to_decimal(3, 2);
/*
* Hours are different for some reason. Makes no sense really.
*/
hour = ((bbc_registers[5] & 0x03) * 10) + bbc_registers[4];
day = bbc_to_decimal(8, 7);
month = bbc_to_decimal(10, 9);
year = bbc_to_decimal(12, 11) + 1900;
}
if (year < POSIX_BASE_YEAR)
year += 100;
#ifdef CLOCK_DEBUG
printf("clock todr: %u/%u/%u %u:%u:%u\n",
year, month, day, hour, min, sec);
#endif
range_test(hour, 0, 23);
range_test(day, 1, 31);
range_test(month, 1, 12);
tmp = 0;
for (i = POSIX_BASE_YEAR; i < year; i++)
tmp += days_per_year(i);
if (is_leap_year(year) && month > FEBRUARY)
tmp++;
for (i = 1; i < month; i++)
tmp += days_in_month(i);
tmp += (day - 1);
tmp = ((tmp * 24 + hour) * 60 + min) * 60 + sec;
*timbuf = tmp;
return true;
}
int
sys_mmap(struct lwp *l, const struct sys_mmap_args *uap, register_t *retval)
{
/* {
syscallarg(void *) addr;
syscallarg(size_t) len;
syscallarg(int) prot;
syscallarg(int) flags;
syscallarg(int) fd;
syscallarg(long) pad;
syscallarg(off_t) pos;
} */
struct proc *p = l->l_proc;
vaddr_t addr;
struct vattr va;
off_t pos;
vsize_t size, pageoff;
vm_prot_t prot, maxprot;
int flags, fd;
vaddr_t defaddr;
struct file *fp = NULL;
struct vnode *vp;
void *handle;
int error;
#ifdef PAX_ASLR
vaddr_t orig_addr;
#endif /* PAX_ASLR */
/*
* first, extract syscall args from the uap.
*/
addr = (vaddr_t)SCARG(uap, addr);
size = (vsize_t)SCARG(uap, len);
prot = SCARG(uap, prot) & VM_PROT_ALL;
flags = SCARG(uap, flags);
fd = SCARG(uap, fd);
pos = SCARG(uap, pos);
#ifdef PAX_ASLR
orig_addr = addr;
#endif /* PAX_ASLR */
/*
* Fixup the old deprecated MAP_COPY into MAP_PRIVATE, and
* validate the flags.
*/
if (flags & MAP_COPY)
flags = (flags & ~MAP_COPY) | MAP_PRIVATE;
if ((flags & (MAP_SHARED|MAP_PRIVATE)) == (MAP_SHARED|MAP_PRIVATE))
return (EINVAL);
/*
* align file position and save offset. adjust size.
*/
pageoff = (pos & PAGE_MASK);
pos -= pageoff;
size += pageoff; /* add offset */
size = (vsize_t)round_page(size); /* round up */
/*
* now check (MAP_FIXED) or get (!MAP_FIXED) the "addr"
*/
if (flags & MAP_FIXED) {
/* ensure address and file offset are aligned properly */
addr -= pageoff;
if (addr & PAGE_MASK)
return (EINVAL);
error = range_test(addr, size, true);
if (error)
return error;
} else if (addr == 0 || !(flags & MAP_TRYFIXED)) {
/*
* not fixed: make sure we skip over the largest
* possible heap for non-topdown mapping arrangements.
* we will refine our guess later (e.g. to account for
* VAC, etc)
*/
defaddr = p->p_emul->e_vm_default_addr(p,
(vaddr_t)p->p_vmspace->vm_daddr, size);
if (addr == 0 ||
!(p->p_vmspace->vm_map.flags & VM_MAP_TOPDOWN))
addr = MAX(addr, defaddr);
else
addr = MIN(addr, defaddr);
}
/*
* check for file mappings (i.e. not anonymous) and verify file.
*/
if ((flags & MAP_ANON) == 0) {
if ((fp = fd_getfile(fd)) == NULL)
return (EBADF);
if (fp->f_type != DTYPE_VNODE) {
fd_putfile(fd);
return (ENODEV); /* only mmap vnodes! */
}
vp = fp->f_data; /* convert to vnode */
if (vp->v_type != VREG && vp->v_type != VCHR &&
vp->v_type != VBLK) {
fd_putfile(fd);
return (ENODEV); /* only REG/CHR/BLK support mmap */
}
if (vp->v_type != VCHR && pos < 0) {
fd_putfile(fd);
return (EINVAL);
}
if (vp->v_type != VCHR && (pos + size) < pos) {
fd_putfile(fd);
return (EOVERFLOW); /* no offset wrapping */
}
/* special case: catch SunOS style /dev/zero */
if (vp->v_type == VCHR
&& (vp->v_rdev == zerodev || COMPAT_ZERODEV(vp->v_rdev))) {
flags |= MAP_ANON;
fd_putfile(fd);
fp = NULL;
goto is_anon;
}
/*
* Old programs may not select a specific sharing type, so
* default to an appropriate one.
*
* XXX: how does MAP_ANON fit in the picture?
*/
if ((flags & (MAP_SHARED|MAP_PRIVATE)) == 0) {
#if defined(DEBUG)
printf("WARNING: defaulted mmap() share type to "
"%s (pid %d command %s)\n", vp->v_type == VCHR ?
"MAP_SHARED" : "MAP_PRIVATE", p->p_pid,
p->p_comm);
#endif
if (vp->v_type == VCHR)
flags |= MAP_SHARED; /* for a device */
else
flags |= MAP_PRIVATE; /* for a file */
}
/*
* MAP_PRIVATE device mappings don't make sense (and aren't
* supported anyway). However, some programs rely on this,
* so just change it to MAP_SHARED.
*/
if (vp->v_type == VCHR && (flags & MAP_PRIVATE) != 0) {
flags = (flags & ~MAP_PRIVATE) | MAP_SHARED;
}
/*
* now check protection
*/
maxprot = VM_PROT_EXECUTE;
/* check read access */
if (fp->f_flag & FREAD)
maxprot |= VM_PROT_READ;
else if (prot & PROT_READ) {
fd_putfile(fd);
return (EACCES);
}
/* check write access, shared case first */
if (flags & MAP_SHARED) {
/*
* if the file is writable, only add PROT_WRITE to
* maxprot if the file is not immutable, append-only.
* otherwise, if we have asked for PROT_WRITE, return
* EPERM.
*/
if (fp->f_flag & FWRITE) {
if ((error =
VOP_GETATTR(vp, &va, l->l_cred))) {
fd_putfile(fd);
return (error);
}
if ((va.va_flags &
(SF_SNAPSHOT|IMMUTABLE|APPEND)) == 0)
maxprot |= VM_PROT_WRITE;
else if (prot & PROT_WRITE) {
fd_putfile(fd);
return (EPERM);
}
}
else if (prot & PROT_WRITE) {
fd_putfile(fd);
return (EACCES);
}
} else {
/* MAP_PRIVATE mappings can always write to */
maxprot |= VM_PROT_WRITE;
}
handle = vp;
} else { /* MAP_ANON case */
/*
* XXX What do we do about (MAP_SHARED|MAP_PRIVATE) == 0?
*/
if (fd != -1)
return (EINVAL);
is_anon: /* label for SunOS style /dev/zero */
handle = NULL;
maxprot = VM_PROT_ALL;
pos = 0;
}
#if NVERIEXEC > 0
if (handle != NULL) {
/*
* Check if the file can be executed indirectly.
*
* XXX: This gives false warnings about "Incorrect access type"
* XXX: if the mapping is not executable. Harmless, but will be
* XXX: fixed as part of other changes.
*/
if (veriexec_verify(l, handle, "(mmap)", VERIEXEC_INDIRECT,
NULL)) {
/*
* Don't allow executable mappings if we can't
* indirectly execute the file.
*/
if (prot & VM_PROT_EXECUTE) {
if (fp != NULL)
fd_putfile(fd);
return (EPERM);
}
/*
* Strip the executable bit from 'maxprot' to make sure
* it can't be made executable later.
*/
maxprot &= ~VM_PROT_EXECUTE;
}
}
#endif /* NVERIEXEC > 0 */
#ifdef PAX_MPROTECT
pax_mprotect(l, &prot, &maxprot);
#endif /* PAX_MPROTECT */
#ifdef PAX_ASLR
pax_aslr(l, &addr, orig_addr, flags);
#endif /* PAX_ASLR */
/*
* now let kernel internal function uvm_mmap do the work.
*/
error = uvm_mmap(&p->p_vmspace->vm_map, &addr, size, prot, maxprot,
flags, handle, pos, p->p_rlimit[RLIMIT_MEMLOCK].rlim_cur);
if (error == 0)
/* remember to add offset */
*retval = (register_t)(addr + pageoff);
if (fp != NULL)
fd_putfile(fd);
return (error);
}