linux-kernel - [tip: timers/vdso] sparc64: vdso: Remove obsolete "fake section table" reservation

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

Message-ID: <176202646052.2601451.14687253507395404051.tip-bot2@tip-bot2>
Date: Sat, 01 Nov 2025 19:47:40 -0000
From: tip-bot2 for Thomas Weißschuh <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: thomas.weissschuh@...utronix.de, Thomas Gleixner <tglx@...utronix.de>,
 Andreas Larsson <andreas@...sler.com>, x86@...nel.org,
 linux-kernel@...r.kernel.org
Subject: [tip: timers/vdso] sparc64: vdso: Remove obsolete "fake section
 table" reservation

The following commit has been merged into the timers/vdso branch of tip:

Commit-ID:     ec1b6750438b214c140051572cd9ee429ee7280a
Gitweb:        https://git.kernel.org/tip/ec1b6750438b214c140051572cd9ee429ee7280a
Author:        Thomas Weißschuh <thomas.weissschuh@...utronix.de>
AuthorDate:    Tue, 14 Oct 2025 08:49:12 +02:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Sat, 01 Nov 2025 20:44:07 +01:00

sparc64: vdso: Remove obsolete "fake section table" reservation

When the vDSO logic was copied from x86 to SPARC some unused remnants of
the fake section handling were copied, too. In x86 the original fake
section handling had already been removed incompletely in commit
da861e18eccc ("x86, vdso: Get rid of the fake section mechanism").
On x86 the reservation was only cleaned up in commit 24b7c77bbb24
("x86/vdso: Remove obsolete "fake section table" reservation").

Remove the reservation for SPARC, too.

Fixes: 9a08862a5d2e ("vDSO for sparc")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Tested-by: Andreas Larsson <andreas@...sler.com>
Reviewed-by: Andreas Larsson <andreas@...sler.com>
Acked-by: Andreas Larsson <andreas@...sler.com>
Link: https://patch.msgid.link/20251014-vdso-sparc64-generic-2-v4-26-e0607bf49dea@linutronix.de
---
 arch/sparc/vdso/vdso-layout.lds.S | 21 ---------------------
 arch/sparc/vdso/vdso2c.c          |  8 --------
 2 files changed, 29 deletions(-)

diff --git a/arch/sparc/vdso/vdso-layout.lds.S b/arch/sparc/vdso/vdso-layout.lds.S
index d31e57e..9e08047 100644
--- a/arch/sparc/vdso/vdso-layout.lds.S
+++ b/arch/sparc/vdso/vdso-layout.lds.S
@@ -4,16 +4,6 @@
  * This script controls its layout.
  */
 
-#if defined(BUILD_VDSO64)
-# define SHDR_SIZE 64
-#elif defined(BUILD_VDSO32)
-# define SHDR_SIZE 40
-#else
-# error unknown VDSO target
-#endif
-
-#define NUM_FAKE_SHDRS 7
-
 SECTIONS
 {
 	/*
@@ -47,19 +37,8 @@ SECTIONS
 		*(.bss*)
 		*(.dynbss*)
 		*(.gnu.linkonce.b.*)
-
-		/*
-		 * Ideally this would live in a C file: kept in here for
-		 * compatibility with x86-64.
-		 */
-		VDSO_FAKE_SECTION_TABLE_START = .;
-		. = . + NUM_FAKE_SHDRS * SHDR_SIZE;
-		VDSO_FAKE_SECTION_TABLE_END = .;
 	}						:text
 
-	.fake_shstrtab	: { *(.fake_shstrtab) }		:text
-
-
 	.note		: { *(.note.*) }		:text	:note
 
 	.eh_frame_hdr	: { *(.eh_frame_hdr) }		:text	:eh_frame_hdr
diff --git a/arch/sparc/vdso/vdso2c.c b/arch/sparc/vdso/vdso2c.c
index dc81240..b97af5e 100644
--- a/arch/sparc/vdso/vdso2c.c
+++ b/arch/sparc/vdso/vdso2c.c
@@ -61,8 +61,6 @@ const char *outfilename;
 /* Symbols that we need in vdso2c. */
 enum {
 	sym_vvar_start,
-	sym_VDSO_FAKE_SECTION_TABLE_START,
-	sym_VDSO_FAKE_SECTION_TABLE_END,
 };
 
 struct vdso_sym {
@@ -72,12 +70,6 @@ struct vdso_sym {
 
 struct vdso_sym required_syms[] = {
 	[sym_vvar_start] = {"vvar_start", 1},
-	[sym_VDSO_FAKE_SECTION_TABLE_START] = {
-		"VDSO_FAKE_SECTION_TABLE_START", 0
-	},
-	[sym_VDSO_FAKE_SECTION_TABLE_END] = {
-		"VDSO_FAKE_SECTION_TABLE_END", 0
-	},
 };
 
 __attribute__((format(printf, 1, 2))) __attribute__((noreturn))