diff options
Diffstat (limited to 'arch/powerpc/include/asm/elf.h')
| -rw-r--r-- | arch/powerpc/include/asm/elf.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h index b5600ce6055..1a856b15226 100644 --- a/arch/powerpc/include/asm/elf.h +++ b/arch/powerpc/include/asm/elf.h @@ -8,6 +8,7 @@ #endif #include <linux/types.h> + #include <asm/ptrace.h> #include <asm/cputable.h> #include <asm/auxvec.h> @@ -178,7 +179,8 @@ typedef elf_fpreg_t elf_vsrreghalf_t32[ELF_NVSRHALFREG]; the loader. We need to make sure that it is out of the way of the program that it will "exec", and that there is sufficient room for the brk. */ -#define ELF_ET_DYN_BASE (0x20000000) +extern unsigned long randomize_et_dyn(unsigned long base); +#define ELF_ET_DYN_BASE (randomize_et_dyn(0x20000000)) /* * Our registers are always unsigned longs, whether we're a 32 bit @@ -270,6 +272,14 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp); #define VDSO_AUX_ENT(a,b) NEW_AUX_ENT(a,b); +/* 1GB for 64bit, 8MB for 32bit */ +#define STACK_RND_MASK (is_32bit_task() ? \ + (0x7ff >> (PAGE_SHIFT - 12)) : \ + (0x3ffff >> (PAGE_SHIFT - 12))) + +extern unsigned long arch_randomize_brk(struct mm_struct *mm); +#define arch_randomize_brk arch_randomize_brk + #endif /* __KERNEL__ */ /* |