On Mon, Aug 30, 2010 at 10:43:44AM -0700, David Daney wrote: > On 08/30/2010 09:46 AM, Richard Henderson wrote: > >On 08/30/2010 03:45 AM, Adam Jiang wrote: > >>When I read the source in Linux kerne, it was said that stack canary for > >>implementing stack protector is defined as an offset to %gs on x86 > >>architecture. How about stack canary defined on MIPS? > > > >It's not implemented for MIPS. > > > > > > For the Linux kernel, the MIPS stack canary would be a constant > offset (that depends on PAGE_SIZE) from register $28. > > David Daney
Thanks, David and Richard. Is there code, doc or anything on this topic I can refer to? Is it defined in gcc internally or in kernel source itself? Would you please redirect me to the right place? I have done some research by googling. Here are what I've gotten. http://www.trl.ibm.com/projects/security/ssp/main.html http://www.trl.ibm.com/projects/security/ssp/ http://lxr.linux.no/linux+v2.6.35/arch/x86/include/asm/stackprotector.h However, it seems there is no documents about how this is done on MIPS. Do I miss something? /Adam
