From: Kees Cook <keescook@chromium.org>
Date: Fri, 21 Aug 2020 19:42:52 +0000 (-0700)
Subject: arm64/build: Use common DISCARDS in linker script
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=2883352bf801d093a04f269800b48bb8aa2515fb;p=linux.git

arm64/build: Use common DISCARDS in linker script

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>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20200821194310.3089815-12-keescook@chromium.org
---

diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index c2b8426bf4bdc..082e9efa2b439 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>
@@ -88,10 +89,8 @@ 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)
 	}