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authorAndreas Bießmann <andreas@biessmann.de>2013-10-24 12:31:04 +0200
committerBen Hutchings <ben@decadent.org.uk>2014-01-03 04:33:23 +0000
commit1c7fd3120a35b27aad3ed7b2a6e72714938c4e66 (patch)
treeecd7b49dd83220b9ffd4c337fad6edb1b83701d3 /security/keys/permission.c
parent3f308887de69a2fbb30d0c715edba4bf2fbfb49e (diff)
avr32: fix out-of-range jump in large kernels
commit d617b338bbfdd77e9cbd8e7dc949cee3dd73d575 upstream. This patch fixes following error (for big kernels): ---8<--- arch/avr32/boot/u-boot/head.o: In function `no_tag_table': (.init.text+0x44): relocation truncated to fit: R_AVR32_22H_PCREL against symbol `panic' defined in .text.unlikely section in kernel/built-in.o arch/avr32/kernel/built-in.o: In function `bad_return': (.ex.text+0x236): relocation truncated to fit: R_AVR32_22H_PCREL against symbol `panic' defined in .text.unlikely section in kernel/built-in.o --->8--- It comes up when the kernel increases and 'panic()' is too far away to fit in the +/- 2MiB range. Which in turn issues from the 21-bit displacement in 'br{cond4}' mnemonic which is one of the two ways to do jumps (rjmp has just 10-bit displacement and therefore a way smaller range). This fact was stated before in 8d29b7b9f81d6b83d869ff054e6c189d6da73f1f. One solution to solve this is to add a local storage for the symbol address and just load the $pc with that value. Signed-off-by: Andreas Bießmann <andreas@biessmann.de> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'security/keys/permission.c')
0 files changed, 0 insertions, 0 deletions