On Mon, Feb 13, 2012 at 01:24:01PM -0800, Tony Lindgren wrote: > It turns out that many compilers don't show section warnings on ARM > currently because handling for ARM_CALL relocs are missing from > modpost.c. > > Based on commit c2e26114 ([ARM] 3205/1: Handle new EABI relocations when > loading kernel modules) it seems that R_ARM_PC24, R_ARM_CALL and > R_ARM_JUMP24 can be handled the same way. > > As modpost.c includes elf.h, we need to also consider that at least > Debian libc6-dev is missing defines for both R_ARM_CALL and R_ARM_JUMP24 > in /usr/include/elf.h. Huh, even unstable's /usr/include/elf.h doesn't have these symbols.
> So for now let's just use the numbers in modpost.c. > > Cc: Rusty Russell <[email protected]> > Cc: Ben Hutchings <[email protected]> > Cc: Anders Kaseorg <[email protected]> > Cc: Greg KH <[email protected]> > Cc: Russell King <[email protected]> > Signed-off-by: Tony Lindgren <[email protected]> > > --- > > Anybody got better ideas for dealing with the missing elf.h > defines? Maybe: #ifndef R_ARM_CALL #warning "you're elf.h include is outdated" #define R_ARM_CALL 28 #endif Best regards Uwe > --- a/scripts/mod/modpost.c > +++ b/scripts/mod/modpost.c > @@ -1505,6 +1505,8 @@ static int addend_arm_rel(struct elf_info *elf, > Elf_Shdr *sechdr, Elf_Rela *r) > (elf->symtab_start + ELF_R_SYM(r->r_info)); > break; > case R_ARM_PC24: > + case 28: /* R_ARM_CALL */ > + case 29: /* R_ARM_JUMP24 */ > /* From ARM ABI: ((S + A) | T) - P */ > r->r_addend = (int)(long)(elf->hdr + > sechdr->sh_offset + -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
