From: "Thomas Weißschuh" <thomas.weissschuh@linutronix.de>
To: Andy Lutomirski <luto@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
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>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
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>
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 v5 25/34] sparc64: vdso: Remove obsolete "fake section table" reservation
Date: Thu, 06 Nov 2025 11:02:18 +0100 [thread overview]
Message-ID: <20251106-vdso-sparc64-generic-2-v5-25-97ff2b6542f7@linutronix.de> (raw)
In-Reply-To: <20251106-vdso-sparc64-generic-2-v5-0-97ff2b6542f7@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 d31e57e8a3bbffd3afb187cd631e2491fde64148..9e0804789d11696948f11be367480b530a1f18d9 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 dc81240aab6fd31a72b8a751cc2a4a821a3c4e4e..b97af5ec9f35c01f2a976b6213b1768b677ad231 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))
--
2.51.0
next prev parent reply other threads:[~2025-11-06 10:02 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-06 10:01 [PATCH v5 00/34] sparc64: vdso: Switch to the generic vDSO library Thomas Weißschuh
2025-11-06 10:01 ` [PATCH v5 01/34] selftests: vDSO: vdso_test_correctness: Handle different tv_usec types Thomas Weißschuh
2025-11-06 10:01 ` [PATCH v5 02/34] arm64: vDSO: getrandom: Explicitly include asm/alternative.h Thomas Weißschuh
2025-11-06 10:01 ` [PATCH v5 03/34] arm64: vDSO: gettimeofday: Explicitly include vdso/clocksource.h Thomas Weißschuh
2025-11-06 10:01 ` [PATCH v5 04/34] arm64: vDSO: compat_gettimeofday: Add explicit includes Thomas Weißschuh
2025-11-06 10:01 ` [PATCH v5 05/34] ARM: vdso: gettimeofday: " Thomas Weißschuh
2025-11-06 10:01 ` [PATCH v5 06/34] powerpc/vdso/gettimeofday: Explicitly include vdso/time32.h Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 07/34] powerpc/vdso: Explicitly include asm/cputable.h and asm/feature-fixups.h Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 08/34] LoongArch: vDSO: Explicitly include asm/vdso/vdso.h Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 09/34] MIPS: vdso: Add include guard to asm/vdso/vdso.h Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 10/34] MIPS: vdso: Explicitly include asm/vdso/vdso.h Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 11/34] random: vDSO: Add explicit includes Thomas Weißschuh
2025-11-07 23:59 ` Jason A. Donenfeld
2025-11-06 10:02 ` [PATCH v5 12/34] vdso/gettimeofday: " Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 13/34] vdso/helpers: Explicitly include vdso/processor.h Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 14/34] vdso/datapage: Remove inclusion of gettimeofday.h Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 15/34] vdso/datapage: Trim down unnecessary includes Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 16/34] random: vDSO: trim vDSO includes Thomas Weißschuh
2025-11-07 23:49 ` Jason A. Donenfeld
2025-11-08 0:00 ` Jason A. Donenfeld
2025-11-06 10:02 ` [PATCH v5 17/34] random: vDSO: remove ifdeffery Thomas Weißschuh
2025-11-07 23:37 ` Jason A. Donenfeld
2025-11-10 8:45 ` Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 18/34] random: vDSO: split out datapage update into helper functions Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 19/34] random: vDSO: only access vDSO datapage after random_init() Thomas Weißschuh
2025-11-07 23:46 ` Jason A. Donenfeld
2025-11-10 9:04 ` Thomas Weißschuh
2025-11-10 10:37 ` Jason A. Donenfeld
2025-11-10 11:24 ` Thomas Weißschuh
2025-11-10 11:40 ` Jason A. Donenfeld
2025-11-11 8:55 ` Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 20/34] s390/time: Set up vDSO datapage later Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 21/34] vdso/datastore: Reduce scope of some variables in vvar_fault() Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 22/34] vdso/datastore: Drop inclusion of linux/mmap_lock.h Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 23/34] vdso/datastore: Allocate data pages dynamically Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 24/34] sparc64: vdso: Link with -z noexecstack Thomas Weißschuh
2025-11-06 10:02 ` Thomas Weißschuh [this message]
2025-11-06 10:02 ` [PATCH v5 26/34] sparc64: vdso: Replace code patching with runtime conditional Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 27/34] sparc64: vdso: Move hardware counter read into header Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 28/34] sparc64: vdso: Move syscall fallbacks " Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 29/34] sparc64: vdso: Introduce vdso/processor.h Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 30/34] sparc64: vdso: Switch to the generic vDSO library Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 31/34] sparc64: vdso2c: Drop sym_vvar_start handling Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 32/34] sparc64: vdso2c: Remove symbol handling Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 33/34] sparc64: vdso: Implement clock_gettime64() Thomas Weißschuh
2025-11-06 10:02 ` [PATCH v5 34/34] clocksource: remove ARCH_CLOCKSOURCE_DATA Thomas Weißschuh
2025-11-06 12:55 ` [PATCH v5 00/34] sparc64: vdso: Switch to the generic vDSO library Aithal, Srikanth
2025-11-06 14:02 ` Mark Brown
2025-11-06 17:20 ` Arnd Bergmann
2025-11-08 0:17 ` Andy Lutomirski
2025-11-08 10:17 ` Arnd Bergmann
2025-11-09 3:23 ` Maciej W. Rozycki
2025-11-09 16:08 ` Arnd Bergmann
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20251106-vdso-sparc64-generic-2-v5-25-97ff2b6542f7@linutronix.de \
--to=thomas.weissschuh@linutronix.de \
--cc=Jason@zx2c4.com \
--cc=agordeev@linux.ibm.com \
--cc=andreas@gaisler.com \
--cc=arnd@arndb.de \
--cc=borntraeger@linux.ibm.com \
--cc=catalin.marinas@arm.com \
--cc=chenhuacai@kernel.org \
--cc=christophe.leroy@csgroup.eu \
--cc=davem@davemloft.net \
--cc=glaubitz@physik.fu-berlin.de \
--cc=gor@linux.ibm.com \
--cc=hca@linux.ibm.com \
--cc=jstultz@google.com \
--cc=kernel@xen0n.name \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=linux-mips@vger.kernel.org \
--cc=linux-s390@vger.kernel.org \
--cc=linux@armlinux.org.uk \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=loongarch@lists.linux.dev \
--cc=luto@kernel.org \
--cc=maddy@linux.ibm.com \
--cc=mpe@ellerman.id.au \
--cc=nick.alcock@oracle.com \
--cc=npiggin@gmail.com \
--cc=sboyd@kernel.org \
--cc=shuah@kernel.org \
--cc=sln@onemain.com \
--cc=sparclinux@vger.kernel.org \
--cc=svens@linux.ibm.com \
--cc=tglx@linutronix.de \
--cc=tsbogend@alpha.franken.de \
--cc=tytso@mit.edu \
--cc=vincenzo.frascino@arm.com \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).