#include <asm/pgalloc.h>
#include <asm/cacheflush.h>
#include <asm/user32.h>
+#include <asm/ia32.h>
#undef WARN_OLD
#undef CORE_DUMP /* probably broken */
-extern int ia32_setup_arg_pages(struct linux_binprm *bprm, int exec_stack);
-
static int load_aout_binary(struct linux_binprm *, struct pt_regs * regs);
static int load_aout_library(struct file*);
-#if CORE_DUMP
+#ifdef CORE_DUMP
static int aout_core_dump(long signr, struct pt_regs * regs, struct file *file);
/*
.module = THIS_MODULE,
.load_binary = load_aout_binary,
.load_shlib = load_aout_library,
-#if CORE_DUMP
+#ifdef CORE_DUMP
.core_dump = aout_core_dump,
#endif
.min_coredump = PAGE_SIZE
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);
}
-#if CORE_DUMP
+#ifdef CORE_DUMP
/*
* These are the only things you should do on a core-file: use only these
* macros to write out all the necessary info.
/* 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+1) * PAGE_SIZE >
- 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+1) * PAGE_SIZE >
- 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 */
set_fs(USER_DS);
- if (verify_area(VERIFY_READ, (void *) (unsigned long)START_DATA(dump), dump.u_dsize << PAGE_SHIFT))
+ if (!access_ok(VERIFY_READ, (void *) (unsigned long)START_DATA(dump), dump.u_dsize << PAGE_SHIFT))
dump.u_dsize = 0;
- if (verify_area(VERIFY_READ, (void *) (unsigned long)START_STACK(dump), dump.u_ssize << PAGE_SHIFT))
+ if (!access_ok(VERIFY_READ, (void *) (unsigned long)START_STACK(dump), dump.u_ssize << PAGE_SHIFT))
dump.u_ssize = 0;
set_fs(KERNEL_DS);
* 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)
current->mm->brk = ex.a_bss +
(current->mm->start_brk = N_BSSADDR(ex));
current->mm->free_area_cache = TASK_UNMAPPED_BASE;
+ current->mm->cached_hole_size = 0;
- // current->mm->rss = 0;
- vx_rsspages_sub(current->mm, current->mm->rss);
current->mm->mmap = NULL;
compute_creds(bprm);
current->flags &= ~PF_FORKNOEXEC;
pos = 32;
map_size = ex.a_text+ex.a_data;
+ down_write(¤t->mm->mmap_sem);
error = do_brk(text_addr & PAGE_MASK, map_size);
+ up_write(¤t->mm->mmap_sem);
+
if (error != (text_addr & PAGE_MASK)) {
send_sig(SIGKILL, current, 0);
return error;
if (!bprm->file->f_op->mmap||((fd_offset & ~PAGE_MASK) != 0)) {
loff_t pos = fd_offset;
+ down_write(¤t->mm->mmap_sem);
do_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
+ up_write(¤t->mm->mmap_sem);
bprm->file->f_op->read(bprm->file,(char *)N_TXTADDR(ex),
ex.a_text+ex.a_data, &pos);
flush_icache_range((unsigned long) N_TXTADDR(ex),
set_brk(current->mm->start_brk, current->mm->brk);
- retval = ia32_setup_arg_pages(bprm, EXSTACK_DEFAULT);
+ retval = ia32_setup_arg_pages(bprm, IA32_STACK_TOP, EXSTACK_DEFAULT);
if (retval < 0) {
/* Someone check-me: is this error path enough? */
send_sig(SIGKILL, current, 0);
error_time = jiffies;
}
#endif
-
+ down_write(¤t->mm->mmap_sem);
do_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss);
+ up_write(¤t->mm->mmap_sem);
file->f_op->read(file, (char *)start_addr,
ex.a_text + ex.a_data, &pos);
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;