arm64: mm: select CONFIG_ARCH_PROC_KCORE_TEXT

BugLink: https://bugs.launchpad.net/bugs/1702749
To avoid issues with the /proc/kcore code getting confused about the
kernels block mappings in the VMALLOC region, enable the existing
facility that describes the [_text, _end) interval as a separate
KCORE_TEXT region, which supersedes the KCORE_VMALLOC region that
it intersects with on arm64.

Reported-by: Tan Xiaojun <tanxiaojun@huawei.com>
Tested-by: Tan Xiaojun <tanxiaojun@huawei.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Laura Abbott <labbott@redhat.com>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
(cherry picked from commit 8f36094802e4e6de180b36bcac4cfd9d319e1b64)
Signed-off-by: dann frazier <dann.frazier@canonical.com>
Acked-by: Seth Forshee <seth.forshee@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index b84e696a5c1b595bdc51a54d376c2bef4f840289..f89840ef38e617e547b49c6b4fa1c5bc240f57af 100644 (file)
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -244,6 +244,9 @@ config PGTABLE_LEVELS
 config ARCH_SUPPORTS_UPROBES
        def_bool y
 
+config ARCH_PROC_KCORE_TEXT
+       def_bool y
+
 source "init/Kconfig"
 
 source "kernel/Kconfig.freezer"