From: Tom Saeger <tom.saeger@oracle.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Sasha Levin <sashal@kernel.org>,
Naresh Kamboju <naresh.kamboju@linaro.org>,
John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
Rich Felker <dalias@libc.org>,
Masahiro Yamada <masahiroy@kernel.org>,
Ard Biesheuvel <ardb@kernel.org>,
Nathan Chancellor <nathan@kernel.org>,
Dennis Gilmore <dennis@ausil.us>,
Palmer Dabbelt <palmer@rivosinc.com>,
Arnd Bergmann <arnd@arndb.de>,
Andrew Morton <akpm@linux-foundation.org>,
Tom Saeger <tom.saeger@oracle.com>,
stable@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-riscv@lists.infradead.org, linuxppc-dev@lists.ozlabs.org,
linux-s390@vger.kernel.org, linux-sh@vger.kernel.org,
Christoph Hellwig <hch@lst.de>,
Yoshinori Sato <ysato@users.sourceforge.jp>
Subject: [PATCH 5.15 v2 5/5] sh: define RUNTIME_DISCARD_EXIT
Date: Fri, 10 Feb 2023 13:18:44 -0700 [thread overview]
Message-ID: <20230210-tsaeger-upstream-linux-stable-5-15-v2-5-6c68622745e9@oracle.com> (raw)
In-Reply-To: <20230210-tsaeger-upstream-linux-stable-5-15-v2-0-6c68622745e9@oracle.com>
commit c1c551bebf928889e7a8fef7415b44f9a64975f4 upstream.
sh vmlinux fails to link with GNU ld < 2.40 (likely < 2.36) since
commit 99cb0d917ffa ("arch: fix broken BuildID for arm64 and riscv").
This is similar to fixes for powerpc and s390:
commit 4b9880dbf3bd ("powerpc/vmlinux.lds: Define RUNTIME_DISCARD_EXIT").
commit a494398bde27 ("s390: define RUNTIME_DISCARD_EXIT to fix link error
with GNU ld < 2.36").
$ sh4-linux-gnu-ld --version | head -n1
GNU ld (GNU Binutils for Debian) 2.35.2
$ make ARCH=sh CROSS_COMPILE=sh4-linux-gnu- microdev_defconfig
$ make ARCH=sh CROSS_COMPILE=sh4-linux-gnu-
`.exit.text' referenced in section `__bug_table' of crypto/algboss.o:
defined in discarded section `.exit.text' of crypto/algboss.o
`.exit.text' referenced in section `__bug_table' of
drivers/char/hw_random/core.o: defined in discarded section
`.exit.text' of drivers/char/hw_random/core.o
make[2]: *** [scripts/Makefile.vmlinux:34: vmlinux] Error 1
make[1]: *** [Makefile:1252: vmlinux] Error 2
arch/sh/kernel/vmlinux.lds.S keeps EXIT_TEXT:
/*
* .exit.text is discarded at runtime, not link time, to deal with
* references from __bug_table
*/
.exit.text : AT(ADDR(.exit.text)) { EXIT_TEXT }
However, EXIT_TEXT is thrown away by
DISCARD(include/asm-generic/vmlinux.lds.h) because
sh does not define RUNTIME_DISCARD_EXIT.
GNU ld 2.40 does not have this issue and builds fine.
This corresponds with Masahiro's comments in a494398bde27:
"Nathan [Chancellor] also found that binutils
commit 21401fc7bf67 ("Duplicate output sections in scripts") cured this
issue, so we cannot reproduce it with binutils 2.36+, but it is better
to not rely on it."
Link: https://lkml.kernel.org/r/9166a8abdc0f979e50377e61780a4bba1dfa2f52.1674518464.git.tom.saeger@oracle.com
Fixes: 99cb0d917ffa ("arch: fix broken BuildID for arm64 and riscv")
Link: https://lore.kernel.org/all/Y7Jal56f6UBh1abE@dev-arch.thelio-3990X/
Link: https://lore.kernel.org/all/20230123194218.47ssfzhrpnv3xfez@oracle.com/
Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dennis Gilmore <dennis@ausil.us>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Naresh Kamboju <naresh.kamboju@linaro.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Palmer Dabbelt <palmer@rivosinc.com>
Cc: Rich Felker <dalias@libc.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tom Saeger <tom.saeger@oracle.com>
---
arch/sh/kernel/vmlinux.lds.S | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/sh/kernel/vmlinux.lds.S b/arch/sh/kernel/vmlinux.lds.S
index 3161b9ccd2a5..b6276a3521d7 100644
--- a/arch/sh/kernel/vmlinux.lds.S
+++ b/arch/sh/kernel/vmlinux.lds.S
@@ -4,6 +4,7 @@
* Written by Niibe Yutaka and Paul Mundt
*/
OUTPUT_ARCH(sh)
+#define RUNTIME_DISCARD_EXIT
#include <asm/thread_info.h>
#include <asm/cache.h>
#include <asm/vmlinux.lds.h>
--
2.39.1
next prev parent reply other threads:[~2023-02-10 20:21 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-10 20:18 [PATCH 5.15 v2 0/5] Fix Build ID on arm64 if CONFIG_MODVERSIONS=y Tom Saeger
2023-02-10 20:18 ` [PATCH 5.15 v2 1/5] arch: fix broken BuildID for arm64 and riscv Tom Saeger
2023-02-23 9:51 ` Greg Kroah-Hartman
2023-02-23 17:53 ` Tom Saeger
2023-02-24 2:47 ` Tom Saeger
2023-02-28 8:58 ` Greg Kroah-Hartman
2023-02-10 20:18 ` [PATCH 5.15 v2 2/5] powerpc/vmlinux.lds: Define RUNTIME_DISCARD_EXIT Tom Saeger
2023-02-10 20:18 ` [PATCH 5.15 v2 3/5] powerpc/vmlinux.lds: Don't discard .rela* for relocatable builds Tom Saeger
2023-02-10 20:18 ` [PATCH 5.15 v2 4/5] s390: define RUNTIME_DISCARD_EXIT to fix link error with GNU ld < 2.36 Tom Saeger
2023-02-10 20:18 ` Tom Saeger [this message]
2023-02-23 9:55 ` [PATCH 5.15 v2 0/5] Fix Build ID on arm64 if CONFIG_MODVERSIONS=y Greg Kroah-Hartman
2023-02-23 18:04 ` Tom Saeger
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