end = PAGE_ALIGN(end);
if (end <= start)
return;
+ down_write(¤t->mm->mmap_sem);
do_brk(start, end - start);
+ up_write(¤t->mm->mmap_sem);
}
/*
set_fs(KERNEL_DS);
has_dumped = 1;
current->flags |= PF_DUMPCORE;
- strncpy(dump.u_comm, current->comm, sizeof(current->comm));
+ strncpy(dump.u_comm, current->comm, sizeof(dump.u_comm));
dump.signal = signr;
dump_thread(regs, &dump);
/* If the size of the dump file exceeds the rlimit, then see what would happen
if we wrote the stack, but not the data area. */
if ((dump.u_dsize+dump.u_ssize) >
- current->rlim[RLIMIT_CORE].rlim_cur)
+ current->signal->rlim[RLIMIT_CORE].rlim_cur)
dump.u_dsize = 0;
/* Make sure we have enough room to write the stack and data areas. */
if ((dump.u_ssize) >
- current->rlim[RLIMIT_CORE].rlim_cur)
+ current->signal->rlim[RLIMIT_CORE].rlim_cur)
dump.u_ssize = 0;
/* make sure we actually have a data and stack area to dump */
* size limits imposed on them by creating programs with large
* arrays in the data or bss.
*/
- rlim = current->rlim[RLIMIT_DATA].rlim_cur;
+ rlim = current->signal->rlim[RLIMIT_DATA].rlim_cur;
if (rlim >= RLIM_INFINITY)
rlim = ~0;
if (ex.a_data + ex.a_bss > rlim)
if (N_MAGIC(ex) == NMAGIC) {
loff_t pos = fd_offset;
/* Fuck me plenty... */
+ down_write(¤t->mm->mmap_sem);
error = do_brk(N_TXTADDR(ex), ex.a_text);
+ up_write(¤t->mm->mmap_sem);
bprm->file->f_op->read(bprm->file, (char __user *)N_TXTADDR(ex),
ex.a_text, &pos);
+ down_write(¤t->mm->mmap_sem);
error = do_brk(N_DATADDR(ex), ex.a_data);
+ up_write(¤t->mm->mmap_sem);
bprm->file->f_op->read(bprm->file, (char __user *)N_DATADDR(ex),
ex.a_data, &pos);
goto beyond_if;
if (N_MAGIC(ex) == OMAGIC) {
loff_t pos = fd_offset;
+ down_write(¤t->mm->mmap_sem);
do_brk(N_TXTADDR(ex) & PAGE_MASK,
ex.a_text+ex.a_data + PAGE_SIZE - 1);
+ up_write(¤t->mm->mmap_sem);
bprm->file->f_op->read(bprm->file, (char __user *)N_TXTADDR(ex),
ex.a_text+ex.a_data, &pos);
} else {
if (!bprm->file->f_op->mmap) {
loff_t pos = fd_offset;
+ down_write(¤t->mm->mmap_sem);
do_brk(0, ex.a_text+ex.a_data);
+ up_write(¤t->mm->mmap_sem);
bprm->file->f_op->read(bprm->file,
(char __user *)N_TXTADDR(ex),
ex.a_text+ex.a_data, &pos);
orig_thr_flags = current_thread_info()->flags;
current_thread_info()->flags |= _TIF_32BIT;
- retval = setup_arg_pages(bprm, EXSTACK_DEFAULT);
+ retval = setup_arg_pages(bprm, STACK_TOP, EXSTACK_DEFAULT);
if (retval < 0) {
current_thread_info()->flags = orig_thr_flags;
current->mm->start_stack =
(unsigned long) create_aout32_tables((char __user *)bprm->p, bprm);
if (!(orig_thr_flags & _TIF_32BIT)) {
- unsigned long pgd_cache;
+ unsigned long pgd_cache = get_pgd_cache(current->mm->pgd);
- pgd_cache = ((unsigned long)current->mm->pgd[0])<<11UL;
__asm__ __volatile__("stxa\t%0, [%1] %2\n\t"
"membar #Sync"
: /* no outputs */
len = PAGE_ALIGN(ex.a_text + ex.a_data);
bss = ex.a_text + ex.a_data + ex.a_bss;
if (bss > len) {
+ down_write(¤t->mm->mmap_sem);
error = do_brk(start_addr + len, bss - len);
+ up_write(¤t->mm->mmap_sem);
retval = error;
if (error != start_addr + len)
goto out;