linux-kernel - [PATCH] [MIPS] Place __kernel_entry at the beginning of text section

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20241125230953.3090508-1-xur@google.com>
Date: Mon, 25 Nov 2024 15:09:53 -0800
From: Rong Xu <xur@...gle.com>
To: Thomas Bogendoerfer <tsbogend@...ha.franken.de>, Masahiro Yamada <masahiroy@...nel.org>, 
	Klara Modin <klarasmodin@...il.com>, Rong Xu <xur@...gle.com>, 
	Christophe Leroy <christophe.leroy@...roup.eu>, Michael Ellerman <mpe@...erman.id.au>, 
	Nicolas Schier <nicolas@...sle.eu>, Chris Packham <chris.packham@...iedtelesis.co.nz>, 
	"Maciej W. Rozycki" <macro@...am.me.uk>, linux-mips@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: [PATCH] [MIPS] Place __kernel_entry at the beginning of text section

Mark __kernel_entry as ".head.text" and place HEAD_TEXT before
TEXT_TEXT in the linker script. This ensures that __kernel_entry
will be placed at the beginning of text section.

Drop mips from scripts/head-object-list.txt.

Signed-off-by: Rong Xu <xur@...gle.com>
Reported-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
---
 arch/mips/kernel/head.S        | 1 +
 arch/mips/kernel/vmlinux.lds.S | 1 +
 scripts/head-object-list.txt   | 1 -
 3 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
index e90695b2b60e..6d5fc498c6f9 100644
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -26,6 +26,7 @@
 
 #include <kernel-entry-init.h>
 
+	__HEAD
 	/*
 	 * For the moment disable interrupts, mark the kernel mode and
 	 * set ST0_KX so that the CPU does not spit fire when using
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index d575f945d422..c9c1ba85ac7b 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -62,6 +62,7 @@ SECTIONS
 	_text = .;	/* Text and read-only data */
 	_stext = .;
 	.text : {
+		HEAD_TEXT
 		TEXT_TEXT
 		SCHED_TEXT
 		LOCK_TEXT
diff --git a/scripts/head-object-list.txt b/scripts/head-object-list.txt
index fd5d00bac447..f12b4a7b8406 100644
--- a/scripts/head-object-list.txt
+++ b/scripts/head-object-list.txt
@@ -23,7 +23,6 @@ arch/m68k/coldfire/head.o
 arch/m68k/kernel/head.o
 arch/m68k/kernel/sun3-head.o
 arch/microblaze/kernel/head.o
-arch/mips/kernel/head.o
 arch/nios2/kernel/head.o
 arch/openrisc/kernel/head.o
 arch/parisc/kernel/head.o

base-commit: 3596c721c4348b2a964e43f9296a0c01509ba927
-- 
2.47.0.338.g60cca15819-goog