From: "Thomas Weißschuh" <thomas.weissschuh@linutronix.de>
To: Andy Lutomirski <luto@kernel.org>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Arnd Bergmann <arnd@arndb.de>,
"David S. Miller" <davem@davemloft.net>,
Andreas Larsson <andreas@gaisler.com>,
Nick Alcock <nick.alcock@oracle.com>,
John Stultz <jstultz@google.com>,
Stephen Boyd <sboyd@kernel.org>,
John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
Shuah Khan <shuah@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>, Theodore Ts'o <tytso@mit.edu>,
"Jason A. Donenfeld" <Jason@zx2c4.com>,
Russell King <linux@armlinux.org.uk>,
Madhavan Srinivasan <maddy@linux.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
Huacai Chen <chenhuacai@kernel.org>,
WANG Xuerui <kernel@xen0n.name>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
Shannon Nelson <sln@onemain.com>,
Thomas Gleixner <tglx@kernel.org>,
Christophe Leroy <chleroy@kernel.org>
Cc: linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org,
linux-kselftest@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev,
linux-mips@vger.kernel.org, linux-s390@vger.kernel.org,
"Thomas Weißschuh" <thomas.weissschuh@linutronix.de>
Subject: [PATCH v6 05/14] sparc64: vdso: Remove obsolete "fake section table" reservation
Date: Wed, 04 Mar 2026 08:49:02 +0100 [thread overview]
Message-ID: <20260304-vdso-sparc64-generic-2-v6-5-d8eb3b0e1410@linutronix.de> (raw)
In-Reply-To: <20260304-vdso-sparc64-generic-2-v6-0-d8eb3b0e1410@linutronix.de>
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@linutronix.de>
Tested-by: Andreas Larsson <andreas@gaisler.com>
Reviewed-by: Andreas Larsson <andreas@gaisler.com>
Acked-by: Andreas Larsson <andreas@gaisler.com>
---
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 d31e57e8a3bb..9e0804789d11 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 dc81240aab6f..b97af5ec9f35 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))
--
2.53.0
next prev parent reply other threads:[~2026-03-04 7:49 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-04 7:48 [PATCH v6 00/14] sparc64: vdso: Switch to the generic vDSO library Thomas Weißschuh
2026-03-04 7:48 ` [PATCH v6 01/14] vdso/datastore: Reduce scope of some variables in vvar_fault() Thomas Weißschuh
2026-03-04 8:10 ` Christophe Leroy (CS GROUP)
2026-03-04 7:48 ` [PATCH v6 02/14] vdso/datastore: Drop inclusion of linux/mmap_lock.h Thomas Weißschuh
2026-03-04 8:11 ` Christophe Leroy (CS GROUP)
2026-03-04 7:49 ` [PATCH v6 03/14] vdso/datastore: Allocate data pages dynamically Thomas Weißschuh
2026-03-04 8:49 ` Christophe Leroy (CS GROUP)
2026-03-04 7:49 ` [PATCH v6 04/14] sparc64: vdso: Link with -z noexecstack Thomas Weißschuh
2026-03-04 7:49 ` Thomas Weißschuh [this message]
2026-03-04 7:49 ` [PATCH v6 06/14] sparc64: vdso: Replace code patching with runtime conditional Thomas Weißschuh
2026-03-04 7:49 ` [PATCH v6 07/14] sparc64: vdso: Move hardware counter read into header Thomas Weißschuh
2026-03-04 7:49 ` [PATCH v6 08/14] sparc64: vdso: Move syscall fallbacks " Thomas Weißschuh
2026-03-04 7:49 ` [PATCH v6 09/14] sparc64: vdso: Introduce vdso/processor.h Thomas Weißschuh
2026-03-04 7:49 ` [PATCH v6 10/14] sparc64: vdso: Switch to the generic vDSO library Thomas Weißschuh
2026-03-04 7:49 ` [PATCH v6 11/14] sparc64: vdso2c: Drop sym_vvar_start handling Thomas Weißschuh
2026-03-04 7:49 ` [PATCH v6 12/14] sparc64: vdso2c: Remove symbol handling Thomas Weißschuh
2026-03-04 7:49 ` [PATCH v6 13/14] sparc64: vdso: Implement clock_gettime64() Thomas Weißschuh
2026-03-04 7:49 ` [PATCH v6 14/14] clocksource: remove ARCH_CLOCKSOURCE_DATA Thomas Weißschuh
2026-03-05 15:17 ` [PATCH v6 00/14] sparc64: vdso: Switch to the generic vDSO library Nathaniel Roach
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