At Tue, 23 Jan 2007 15:50:18 -0500,
Jakub Jelinek wrote:
>
> On Tue, Jan 23, 2007 at 11:28:13PM +0300, Samium Gromoff wrote:
> > Author: Samium Gromoff <[EMAIL PROTECTED]>
> > Date: Tue Jan 23 22:31:13 2007 +0300
> >
> > Define the ELF binary header flag EF_AS_NO_RANDOM
> >
> > EF_AS_NO_RANDOM should mean that the binary requests to not apply
> > randomisation to address spaces of its processes.
> >
> > diff --git a/include/linux/elf.h b/include/linux/elf.h
> > index 60713e6..58ebb47 100644
> > --- a/include/linux/elf.h
> > +++ b/include/linux/elf.h
> > @@ -172,6 +172,8 @@ typedef struct elf64_sym {
> >
> > #define EI_NIDENT 16
> >
> > +#define EF_AS_NO_RANDOM 0x1 /* do not randomise the address space */
> > +
>
> You can't make up EF_* flags this way, they are arch specific, the LSB bit
> (but many others too) are already used on many architectures.
> E.g.:
> elf/mt.h:#define EF_MT_CPU_MRISC 0x00000001 /* default */
> elf/sparc.h:#define EF_SPARCV9_PSO 0x1 /* partial
> store ordering */
> elf/bfin.h:#define EF_BFIN_PIC 0x00000001 /* -fpic */
> elf/alpha.h:#define EF_ALPHA_32BIT 0x00000001
> elf/mips.h:#define EF_MIPS_NOREORDER 0x00000001
> elf/m68k.h:#define EF_M68K_CF_ISA_A_NODIV 0x01 /* ISA A except for div */
> elf/sh.h:#define EF_SH1 1
> elf/arm.h:#define EF_ARM_RELEXEC 0x01
> elf/cris.h:#define EF_CRIS_UNDERSCORE 0x00000001
> elf/ia64.h:#define EF_IA_64_TRAPNIL (1 << 0) /* Trap NIL pointer
> dereferences. */
> elf/vax.h:#define EF_VAX_NONPIC 0x0001 /* Object contains
> non-PIC code */
> elf/iq2000.h:#define EF_IQ2000_CPU_IQ2000 0x00000001 /* default */
> elf/frv.h:#define EF_FRV_GPR_32 0x00000001 /* -mgpr-32 */
> to name just a few.
Should we introduce per-arch asm/elf.h files to hold the relevant flag
definitions then?
> Jakub
regards, Samium Gromoff
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