From: Georges Savoundararadj Date: Tue, 28 Oct 2014 22:16:10 +0000 (+0100) Subject: arm: make .vectors section allocatable X-Git-Tag: v2015.01-rc1~73 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=c57a642384df0dfaacc8e9c6c06d76b5aecb965d;p=oweals%2Fu-boot.git arm: make .vectors section allocatable A regression was introduced in commit 41623c91. The consequence of that is the non-relocation of the section .vectors symbols : _undefined_instruction, _software_interrupt, _prefetch_abort, _data_abort, _not_used, _irq and _fiq. Before commit 41623c91, the exception vectors were in a .text section. The .text section has the attributes allocatable and executable [1]. In commit 41623c91, a specific section is created, called .vectors, with the attribute executable only. What have changed between commit 41623c91^ and 41623c91 is the attribute of the section which contains the exception vectors. An allocatable section is "a section [that] occupies memory during process execution" [1] which is the case of the section .vectors. Adding the lacking attribute (SHF_ALLOC or "a") for the definition of the section .vectors fixed the issue. To summarize, the fix has to mark .vectors as allocatable because the exception vectors reside in "memory during execution" and they need to be relocated. [1] http://man7.org/linux/man-pages/man5/elf.5.html Signed-off-by: Georges Savoundararadj Acked-by: Albert ARIBAUD --- diff --git a/arch/arm/lib/vectors.S b/arch/arm/lib/vectors.S index 0cb87cee7f..49238ed21e 100644 --- a/arch/arm/lib/vectors.S +++ b/arch/arm/lib/vectors.S @@ -33,7 +33,7 @@ ************************************************************************* */ - .section ".vectors", "x" + .section ".vectors", "ax" /* *************************************************************************