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[RFC,v5,53/57] arm64: Generate no-ops to pad executable section

Message ID 20200109160300.26150-54-jthierry@redhat.com (mailing list archive)
State New, archived
Headers show
Series objtool: Add support for arm64 | expand

Commit Message

Julien Thierry Jan. 9, 2020, 4:02 p.m. UTC
Directive .org fills the gap left to get to the new location with bytes
of value 0.

Having an executable section contain invalid opcodes confuses objtool,
so use .balign to fill the gap with nop instructions instead.

Signed-off-by: Julien Thierry <jthierry@redhat.com>
 arch/arm64/kernel/relocate_kernel.S | 2 ++
 1 file changed, 2 insertions(+)
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diff --git a/arch/arm64/kernel/relocate_kernel.S b/arch/arm64/kernel/relocate_kernel.S
index c1d7db71a726..5e08845f701a 100644
--- a/arch/arm64/kernel/relocate_kernel.S
+++ b/arch/arm64/kernel/relocate_kernel.S
@@ -118,6 +118,8 @@  ENDPROC(arm64_relocate_new_kernel)
 .align 3	/* To keep the 64-bit values below naturally aligned. */
+/* Ensure we didn't go past the limit */