OpenCloudOS-Kernel/arch/arm64/include
Ard Biesheuvel 41c066f2c4 arm64: assembler: make adr_l work in modules under KASLR
When CONFIG_RANDOMIZE_MODULE_REGION_FULL=y, the offset between loaded
modules and the core kernel may exceed 4 GB, putting symbols exported
by the core kernel out of the reach of the ordinary adrp/add instruction
pairs used to generate relative symbol references. So make the adr_l
macro emit a movz/movk sequence instead when executing in module context.

While at it, remove the pointless special case for the stack pointer.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2017-01-12 18:10:52 +00:00
..
asm arm64: assembler: make adr_l work in modules under KASLR 2017-01-12 18:10:52 +00:00
uapi/asm arm64 fixes: 2016-08-06 08:58:59 -04:00