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LoongArch: Allow building with kcov coverage

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Add ARCH_HAS_KCOV and HAVE_GCC_PLUGINS to the LoongArch Kconfig. And
also disable instrumentation of vdso.

Signed-off-by: Feiyang Chen <chenfeiyang@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Feiyang Chen 2023-09-06 22:53:55 +08:00 committed by Huacai Chen
parent b72961f847
commit 2363088eba
3 changed files with 5 additions and 1 deletions
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2
Documentation/features/debug/kcov/arch-support.txt
View file

@ -13,7 +13,7 @@
| csky: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| loongarch: | TODO |
| loongarch: | ok |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |

2
arch/loongarch/Kconfig
View file

@ -13,6 +13,7 @@ config LOONGARCH
select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
select ARCH_HAS_CPU_FINALIZE_INIT
select ARCH_HAS_FORTIFY_SOURCE
select ARCH_HAS_KCOV
select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS
select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
select ARCH_HAS_PTE_SPECIAL
@ -116,6 +117,7 @@ config LOONGARCH
select HAVE_FUNCTION_GRAPH_RETVAL if HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_GRAPH_TRACER
select HAVE_FUNCTION_TRACER
select HAVE_GCC_PLUGINS
select HAVE_GENERIC_VDSO
select HAVE_HW_BREAKPOINT if PERF_EVENTS
select HAVE_IOREMAP_PROT

2
arch/loongarch/vdso/Makefile
View file

@ -1,6 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
# Objects to go into the VDSO.
KCOV_INSTRUMENT := n
# Include the generic Makefile to check the built vdso.
include $(srctree)/lib/vdso/Makefile