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[2/2] arm64: mm: select CONFIG_ARCH_PROC_KCORE_TEXT

Message ID 20170608194139.9250-3-ard.biesheuvel@linaro.org
State Accepted
Commit 8f36094802e4e6de180b36bcac4cfd9d319e1b64
Headers show
Series arm64: fix crash when reading /proc/kcore | expand

Commit Message

Ard Biesheuvel June 8, 2017, 7:41 p.m. UTC 
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.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

---
 arch/arm64/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

-- 
2.9.3
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Patch

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 3dcd7ec69bca..65173b39cfc2 100644
--- 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"