Re: arch_align_stack() seems useless

2007-08-30 Thread Franck Bui-Huu
Arjan, Franck Bui-Huu wrote: > Arjan van de Ven wrote: >> arch_align_stack aligns, on x86, within a 2 page range (this is for >> cache coloring). > > OK, but for elf case this seems useless since the top of the stack is > already randomized. > > It seems that the randomization stuff (top of the

Re: arch_align_stack() seems useless

2007-08-28 Thread Franck Bui-Huu
Hello Arjan, Arjan van de Ven wrote: > arch_align_stack aligns, on x86, within a 2 page range (this is for > cache coloring). OK, but for elf case this seems useless since the top of the stack is already randomized. It seems that the randomization stuff (top of the stack + stack pointer inside a

Re: arch_align_stack() seems useless

2007-08-27 Thread Arjan van de Ven
On Mon, 27 Aug 2007 16:08:31 +0200 Franck Bui-Huu <[EMAIL PROTECTED]> wrote: > and recently mips do that. Here is the code taken from exec.c which > calls it: > > int setup_arg_pages(struct linux_binprm *bprm, > unsigned long stack_top, > i