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LoongArch: Add Kconfig option AS_HAS_EXPLICIT_RELOCS 

GNU as >= 2.40 and GCC >= 13 will support using explicit relocation
hints in the assembly code, instead of la.* macros. The usage of
explicit relocation hints can improve code generation so it's enabled
by default by GCC >= 13.

Introduce a Kconfig option AS_HAS_EXPLICIT_RELOCS as the switch for
"use explicit relocation hints or not".

Tested-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Xi Ruoyao <xry111@xry111.site>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Xi Ruoyao 2022-10-12 16:36:08 +08:00 committed by Huacai Chen
parent 9550dfde5e
commit 0d8dad7048
1 changed files with 3 additions and 0 deletions
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arch/loongarch/Kconfig
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@ -195,6 +195,9 @@ config SCHED_OMIT_FRAME_POINTER
bool
default y
config AS_HAS_EXPLICIT_RELOCS
def_bool $(as-instr,x:pcalau12i \$t0$(comma)%pc_hi20(x))
menu "Kernel type and options"
source "kernel/Kconfig.hz"