diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mm.h | 8 | ||||
| -rw-r--r-- | include/linux/mm_types.h | 3 | ||||
| -rw-r--r-- | include/linux/resource.h | 5 | ||||
| -rw-r--r-- | include/linux/sched.h | 7 |
4 files changed, 21 insertions, 2 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index a2b48041b91..09446e61bcf 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1263,7 +1263,13 @@ extern int install_special_mapping(struct mm_struct *mm, unsigned long addr, unsigned long len, unsigned long flags, struct page **pages); -extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long); +extern unsigned long get_unmapped_area_prot(struct file *, unsigned long, unsigned long, unsigned long, unsigned long, int); + +static inline unsigned long get_unmapped_area(struct file *file, unsigned long addr, + unsigned long len, unsigned long pgoff, unsigned long flags) +{ + return get_unmapped_area_prot(file, addr, len, pgoff, flags, 0); +} extern unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, unsigned long len, unsigned long prot, diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index b8bb9a6a1f3..f478e39e3cc 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -227,6 +227,9 @@ struct mm_struct { unsigned long (*get_unmapped_area) (struct file *filp, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags); + unsigned long (*get_unmapped_exec_area) (struct file *filp, + unsigned long addr, unsigned long len, + unsigned long pgoff, unsigned long flags); void (*unmap_area) (struct mm_struct *mm, unsigned long addr); #endif unsigned long mmap_base; /* base of mmap area */ diff --git a/include/linux/resource.h b/include/linux/resource.h index f1e914eefea..d2aef9a9ebe 100644 --- a/include/linux/resource.h +++ b/include/linux/resource.h @@ -53,8 +53,11 @@ struct rlimit { /* * Limit the stack by to some sane default: root can always * increase this limit if needed.. 8MB seems reasonable. + * + * (2MB more to cover randomization effects.) */ -#define _STK_LIM (8*1024*1024) +#define _STK_LIM (10*1024*1024) +#define EXEC_STACK_BIAS (2*1024*1024) /* * GPG2 wants 64kB of mlocked memory, to make sure pass phrases diff --git a/include/linux/sched.h b/include/linux/sched.h index 747fcaedddb..c8544513ea4 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -101,6 +101,9 @@ struct bio_list; struct fs_struct; struct perf_event_context; +extern int exec_shield; +extern int print_fatal_signals; + /* * List of flags we want to share for kernel threads, * if only because they are not used by them anyway. @@ -394,6 +397,10 @@ extern void arch_pick_mmap_layout(struct mm_struct *mm); extern unsigned long arch_get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long); + +extern unsigned long +arch_get_unmapped_exec_area(struct file *, unsigned long, unsigned long, + unsigned long, unsigned long); extern unsigned long arch_get_unmapped_area_topdown(struct file *filp, unsigned long addr, unsigned long len, unsigned long pgoff, |