diff mbox series

[RFC,v5,52/57] arm64: kernel: Annotate non-standard stack frame functions

Message ID 20200109160300.26150-53-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 
From: Raphael Gault <raphael.gault@arm.com>

Annotate assembler functions which are callable but do not
setup a correct stack frame.

Signed-off-by: Raphael Gault <raphael.gault@arm.com>
Signed-off-by: Julien Thierry <jthierry@redhat.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: kvmarm@lists.cs.columbia.edu
---
 arch/arm64/kernel/hyp-stub.S | 3 +++
 arch/arm64/kvm/hyp-init.S    | 3 +++
 2 files changed, 6 insertions(+)

--
2.21.0
diff mbox series

Patch

diff --git a/arch/arm64/kernel/hyp-stub.S b/arch/arm64/kernel/hyp-stub.S
index 73d46070b315..8917d42f38c7 100644
--- a/arch/arm64/kernel/hyp-stub.S
+++ b/arch/arm64/kernel/hyp-stub.S
@@ -6,6 +6,7 @@ 
  * Author:	Marc Zyngier <marc.zyngier@arm.com>
  */

+#include <linux/frame.h>
 #include <linux/init.h>
 #include <linux/linkage.h>
 #include <linux/irqchip/arm-gic-v3.h>
@@ -42,6 +43,7 @@  ENTRY(__hyp_stub_vectors)
 	ventry	el1_fiq_invalid			// FIQ 32-bit EL1
 	ventry	el1_error_invalid		// Error 32-bit EL1
 ENDPROC(__hyp_stub_vectors)
+asm_stack_frame_non_standard __hyp_stub_vectors

 	.align 11

@@ -69,6 +71,7 @@  el1_sync:
 9:	mov	x0, xzr
 	eret
 ENDPROC(el1_sync)
+asm_stack_frame_non_standard el1_sync

 .macro invalid_vector	label
 \label:
diff --git a/arch/arm64/kvm/hyp-init.S b/arch/arm64/kvm/hyp-init.S
index 160be2b4696d..63deea39313d 100644
--- a/arch/arm64/kvm/hyp-init.S
+++ b/arch/arm64/kvm/hyp-init.S
@@ -12,6 +12,7 @@ 
 #include <asm/pgtable-hwdef.h>
 #include <asm/sysreg.h>
 #include <asm/virt.h>
+#include <linux/frame.h>

 	.text
 	.pushsection	.hyp.idmap.text, "ax"
@@ -118,6 +119,7 @@  CPU_BE(	orr	x4, x4, #SCTLR_ELx_EE)
 	/* Hello, World! */
 	eret
 ENDPROC(__kvm_hyp_init)
+asm_stack_frame_non_standard __kvm_hyp_init

 ENTRY(__kvm_handle_stub_hvc)
 	cmp	x0, #HVC_SOFT_RESTART
@@ -159,6 +161,7 @@  reset:
 	eret

 ENDPROC(__kvm_handle_stub_hvc)
+asm_stack_frame_non_standard __kvm_handle_stub_hvc

 	.ltorg