On Friday, August 5, 2016 10:26:25 PM CEST Nicholas Piggin wrote: > On Fri, 05 Aug 2016 12:17:27 +0200 > Arnd Bergmann <arnd@xxxxxxxx> wrote: > > and I also get link errors for the .text.fixup section > > for any users of __put_user() in really large kernels: > > net/batman-adv/batman-adv.o:(.text.fixup+0x4): relocation truncated to fit: R_ARM_JUMP24 against `.text.batadv_log_read' > > This may be fixed by fixing the linker script to bring in the new > sections properly (see new patchset). > > If not, then if you can combine the sections rather than have them > consecutive in the output, e.g.,: > > *(.text .text.fixup) > > Rather than > > *(.text) > *(.text.fixup) > > Then the linker has more freedom to rearrange them. I realize it's > not that simple with ARM's .text.fixup, but maybe that helps you > get it to work. This did the trick: diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 0ec807d69f18..7a3ad269fa23 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -433,7 +433,7 @@ * during second ld run in second ld pass when generating System.map */ #define TEXT_TEXT \ ALIGN_FUNCTION(); \ - *(.text.hot .text .text.fixup .text.unlikely) \ + *(.text.hot .text .text.* .text.fixup .text.unlikely) \ *(.ref.text) \ MEM_KEEP(init.text) \ MEM_KEEP(exit.text) \ It also got much faster again, the link time for an allyesconfig kernel is now 18 minutes instead of 10 hours, but it's still much worse than the 2 minutes I had earlier or the four minutes with the previous patch. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
