linux-kernel - [PATCH 2/2] arm64: mm: select CONFIG_ARCH_PROC_KCORE

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Date:   Thu,  8 Jun 2017 19:41:39 +0000
From:   Ard Biesheuvel <ard.biesheuvel@...aro.org>
To:     linux-kernel@...r.kernel.org
Cc:     linux-arm-kernel@...ts.infradead.org, jolsa@...nel.org,
        mingo@...nel.org, akpm@...ux-foundation.org, zhongjiang@...wei.com,
        labbott@...oraproject.org, mark.rutland@....com,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>
Subject: [PATCH 2/2] arm64: mm: select CONFIG_ARCH_PROC_KCORE_TEXT

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@...aro.org>
---
 arch/arm64/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

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"
-- 
2.9.3