On 04/07/2015 11:14 PM, Max Filippov wrote:
Hi Guenter,

On Wed, Apr 8, 2015 at 8:49 AM, Guenter Roeck <li...@roeck-us.net> wrote:
Commit 779c88c94c34 ("ARM: 8321/1: asm-generic: introduce .text.fixup
input section") introduced a new .text.fixup section which is merged
with .text at link time. This causes xtensa builds to fail with lots
of error messages similar to the following.

lib/lib.a(kobject.o): In function `kobject_create':
(.text+0x498): dangerous relocation: l32r: literal placed after use:
                                      (.literal+0x150)

Linker script transformation needs to be updated to detect and handle
the new section.

I've posted a patch for it to the linux-xtensa ML a while ago:
http://lists.linux-xtensa.org/pipermail/linux-xtensa/Week-of-Mon-20150330/001913.html

Fixes: 779c88c94c34 ("ARM: 8321/1: asm-generic: introduce .text.fixup
                      input section")
Cc: Ard Biesheuvel <ard.biesheu...@linaro.org>
Cc: Arnd Bergmann <a...@arndb.de>
Signed-off-by: Guenter Roeck <li...@roeck-us.net>
---
  arch/xtensa/kernel/Makefile | 1 +
  1 file changed, 1 insertion(+)

diff --git a/arch/xtensa/kernel/Makefile b/arch/xtensa/kernel/Makefile
index 18d962a..d3a0f0f 100644
--- a/arch/xtensa/kernel/Makefile
+++ b/arch/xtensa/kernel/Makefile
@@ -29,6 +29,7 @@ AFLAGS_head.o += -mtext-section-literals

  sed-y = -e 's/\*(\(\.[a-z]*it\|\.ref\|\)\.text)/*(\1.literal \1.text)/g' \
         -e 's/\.text\.unlikely/.literal.unlikely .text.unlikely/g'       \
+       -e 's/\*(\(\.text .*\))/*(.literal \1)/g'                        \

This doesn't handle literals for .text.fixup AFAICT.

It doesn't, but then it wasn't supposed to. .text.fixup is arm specific.

Guenter

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