[PATCH 07/29] x86: Restore "text" Program Header with dummy section

From: Kees Cook
Date: Thu Sep 26 2019 - 13:57:53 EST


Instead of depending on markings in the section following NOTES to
restore the associated Program Header, use a dummy section, as done
in other architectures. This is preparation for moving NOTES into the
RO_DATA macro.

Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
arch/x86/kernel/vmlinux.lds.S | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index e2feacf921a0..788e78978030 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -147,8 +147,9 @@ SECTIONS
} :text = 0x9090

NOTES :text :note
+ .dummy : { *(.dummy) } :text

- EXCEPTION_TABLE(16) :text = 0x9090
+ EXCEPTION_TABLE(16)

/* .text should occupy whole number of pages */
. = ALIGN(PAGE_SIZE);
--
2.17.1