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lkl: move KASAN_SHADOW_OFFSET/_SIZE defaults to Kconfig

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OUTPUT_FORMAT is known within Kconfig, so we can use the same
"elf64-x86-64" specific logic when setting the defaults for
CONFIG_KASAN_SHADOW_OFFSET and CONFIG_KASAN_SHADOW_SIZE.

The LKL_HOST_CONFIG_KASAN_SHADOW_OFFSET/_SIZE autoconf variables appear
to be unused, so drop them for now. If necessary we could put them back
in arch/lkl/include/generated/uapi/asm/config.h .

Signed-off-by: David Disseldorp <ddiss@suse.de>
This commit is contained in:
David Disseldorp
2025-06-06 21:05:01 +10:00
parent ba545e1875
commit cb5a9cf01c
2 changed files with 4 additions and 10 deletions
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6
arch/lkl/Kconfig
View File

@@ -137,11 +137,13 @@ config STACKTRACE_SUPPORT
if KASAN
config KASAN_SHADOW_OFFSET
hex "KASAN shadow offset"
default "0"
default "0x0000200000000000" if OUTPUT_FORMAT = "elf64-x86-64"
default "0" if OUTPUT_FORMAT != "elf64-x86-64"
config KASAN_SHADOW_SIZE
hex "KASAN shadow size"
default "0"
default "0x0000100000000000" if OUTPUT_FORMAT = "elf64-x86-64"
default "0" if OUTPUT_FORMAT != "elf64-x86-64"
endif
config BUILTIN_CMDLINE

8
tools/lkl/Makefile.autoconf
View File

@@ -110,13 +110,6 @@ define nt_host
$(if $(filter $(1),pe-x86-64),$(call nt64_host))
endef
define kasan_x86_64
$(call set_autoconf_var,KASAN_SHADOW_OFFSET,0x0000200000000000)
$(call set_kernel_config,KASAN_SHADOW_OFFSET,0x0000200000000000)
$(call set_autoconf_var,KASAN_SHADOW_SIZE,0x0000100000000000)
$(call set_kernel_config,KASAN_SHADOW_SIZE,0x0000100000000000)
endef
define kasan_test_enable
$(call set_autoconf_var,KASAN_TEST,y)
$(call set_kernel_config,KUNIT,y)
@@ -127,7 +120,6 @@ endef
define kasan_enable
$(call set_autoconf_var,KASAN,y)
$(call set_kernel_config,KASAN,y)
$(if $(filter $(1),elf64-x86-64),$(call kasan_x86_64))
$(if $(filter yes,$(kasan_test)), $(call kasan_test_enable))
endef