From: Kees Cook <keescook@chromium.org>
To: Will Deacon <will@kernel.org>
Cc: Kees Cook <keescook@chromium.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ard Biesheuvel <ardb@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
Peter Collingbourne <pcc@google.com>,
James Morse <james.morse@arm.com>,
Nick Desaulniers <ndesaulniers@google.com>,
Nathan Chancellor <natechancellor@gmail.com>,
clang-built-linux@googlegroups.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 1/2] arm64/build: Use common DISCARDS in linker script
Date: Mon, 22 Jun 2020 13:58:14 -0700 [thread overview]
Message-ID: <20200622205815.2988115-2-keescook@chromium.org> (raw)
In-Reply-To: <20200622205815.2988115-1-keescook@chromium.org>
Use the common DISCARDS rule for the linker script in an effort to
regularize the linker script to prepare for warning on orphaned
sections. Additionally clean up left-over no-op macros.
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Will Deacon <will@kernel.org>
---
arch/arm64/kernel/vmlinux.lds.S | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index 6827da7f3aa5..5427f502c3a6 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -6,6 +6,7 @@
*/
#define RO_EXCEPTION_TABLE_ALIGN 8
+#define RUNTIME_DISCARD_EXIT
#include <asm-generic/vmlinux.lds.h>
#include <asm/cache.h>
@@ -89,10 +90,8 @@ SECTIONS
* matching the same input section name. There is no documented
* order of matching.
*/
+ DISCARDS
/DISCARD/ : {
- EXIT_CALL
- *(.discard)
- *(.discard.*)
*(.interp .dynamic)
*(.dynsym .dynstr .hash .gnu.hash)
*(.eh_frame)
--
2.25.1
next prev parent reply other threads:[~2020-06-22 20:58 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-22 20:58 [PATCH v2 0/2] arm64: Warn on orphan section placement Kees Cook
2020-06-22 20:58 ` Kees Cook [this message]
2020-06-22 20:58 ` [PATCH v2 2/2] arm64/build: " Kees Cook
2020-06-23 14:52 ` Will Deacon
2020-06-23 14:52 ` Will Deacon
2020-06-23 14:59 ` Ard Biesheuvel
2020-06-23 14:59 ` Ard Biesheuvel
2020-06-23 19:18 ` Nick Desaulniers
2020-06-23 19:18 ` Nick Desaulniers
2020-06-23 21:06 ` Kees Cook
2020-06-23 21:06 ` Kees Cook
2020-06-23 21:21 ` Ard Biesheuvel
2020-06-23 21:21 ` Ard Biesheuvel
2020-06-24 0:05 ` Kees Cook
2020-06-24 0:05 ` Kees Cook
2020-06-24 3:52 ` kernel test robot
2020-06-24 4:41 ` Kees Cook
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