git: 755c1e039adf - main - kernel: address executable stack warnings in amd64 gcc build

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From: Ryan Libby <rlibby_at_FreeBSD.org>
Date: Sat, 16 May 2026 20:25:21 UTC
The branch main has been updated by rlibby:

URL: https://cgit.FreeBSD.org/src/commit/?id=755c1e039adfd68ecf4d5954e13fe54263c34a03

commit 755c1e039adfd68ecf4d5954e13fe54263c34a03
Author:     Ryan Libby <rlibby@FreeBSD.org>
AuthorDate: 2026-05-16 20:24:45 +0000
Commit:     Ryan Libby <rlibby@FreeBSD.org>
CommitDate: 2026-05-16 20:24:45 +0000

    kernel: address executable stack warnings in amd64 gcc build
    
    Mark assembly files as not requiring executable stacks.
    
    Reviewed by:    kib
    Differential Revision:  https://reviews.freebsd.org/D56946
---
 sys/amd64/amd64/cpu_switch.S              | 2 ++
 sys/amd64/amd64/efirt_support.S           | 2 ++
 sys/amd64/amd64/exception.S               | 2 ++
 sys/amd64/amd64/kexec_tramp.S             | 2 ++
 sys/amd64/amd64/locore.S                  | 2 ++
 sys/amd64/amd64/mpboot.S                  | 2 ++
 sys/amd64/amd64/support.S                 | 2 ++
 sys/amd64/amd64/xen-locore.S              | 2 ++
 sys/amd64/ia32/ia32_sigtramp.S            | 2 ++
 sys/amd64/sgx/sgx_support.S               | 2 ++
 sys/amd64/vmm/amd/svm_support.S           | 2 ++
 sys/amd64/vmm/intel/vmx_support.S         | 2 ++
 sys/crypto/aesni/aeskeys_amd64.S          | 2 ++
 sys/dev/hyperv/vmbus/amd64/vmbus_vector.S | 2 ++
 sys/tools/vdso_wrap.S                     | 2 ++
 15 files changed, 30 insertions(+)

diff --git a/sys/amd64/amd64/cpu_switch.S b/sys/amd64/amd64/cpu_switch.S
index 17ff8005e3cd..21e55e64d74a 100644
--- a/sys/amd64/amd64/cpu_switch.S
+++ b/sys/amd64/amd64/cpu_switch.S
@@ -496,3 +496,5 @@ sw1wait:
 	cmpq	%rcx, %rdx
 	je	1b
 	jmp	sw1cont
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/sys/amd64/amd64/efirt_support.S b/sys/amd64/amd64/efirt_support.S
index 54578f573750..671fd52e5016 100644
--- a/sys/amd64/amd64/efirt_support.S
+++ b/sys/amd64/amd64/efirt_support.S
@@ -117,3 +117,5 @@ ENTRY(efi_rt_fault)
 END(efi_rt_fault)
 
 efi_rt_panic_str:	.asciz	"efi_rt_arch_call: too many args"
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/sys/amd64/amd64/exception.S b/sys/amd64/amd64/exception.S
index babfbacf92ef..5ff75fb65740 100644
--- a/sys/amd64/amd64/exception.S
+++ b/sys/amd64/amd64/exception.S
@@ -1373,3 +1373,5 @@ gsbase_load_fault:
 #ifdef HWPMC_HOOKS
 	ENTRY(end_exceptions)
 #endif
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/sys/amd64/amd64/kexec_tramp.S b/sys/amd64/amd64/kexec_tramp.S
index 6a2de676bc35..297a2a715a10 100644
--- a/sys/amd64/amd64/kexec_tramp.S
+++ b/sys/amd64/amd64/kexec_tramp.S
@@ -89,3 +89,5 @@ CNAME(kexec_saved_image):
 CNAME(kexec_do_reboot_size):
 	.globl	kexec_do_reboot_size
 	.quad . - kexec_do_reboot
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/sys/amd64/amd64/locore.S b/sys/amd64/amd64/locore.S
index 2be555b25160..d0b67d8872b9 100644
--- a/sys/amd64/amd64/locore.S
+++ b/sys/amd64/amd64/locore.S
@@ -194,3 +194,5 @@ ENTRY(la57_trampoline_end)
 	.globl	bootstack
 	.space	BOOTSTACK_SIZE		/* space for bootstack - temporary stack */
 bootstack:
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/sys/amd64/amd64/mpboot.S b/sys/amd64/amd64/mpboot.S
index e3d940088f14..5929b529147b 100644
--- a/sys/amd64/amd64/mpboot.S
+++ b/sys/amd64/amd64/mpboot.S
@@ -276,3 +276,5 @@ entry_64:
 	wrmsr
 
 	jmp	init_secondary
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/sys/amd64/amd64/support.S b/sys/amd64/amd64/support.S
index 27694a95653c..09d4ef85b087 100644
--- a/sys/amd64/amd64/support.S
+++ b/sys/amd64/amd64/support.S
@@ -1996,3 +1996,5 @@ ENTRY(cpu_sync_core)
 	pushq	%rdx
 	iretq
 END(cpu_sync_core)
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/sys/amd64/amd64/xen-locore.S b/sys/amd64/amd64/xen-locore.S
index ed2aae038b6d..8ee135f45400 100644
--- a/sys/amd64/amd64/xen-locore.S
+++ b/sys/amd64/amd64/xen-locore.S
@@ -206,3 +206,5 @@ gdt32:
 	.long	0x0000ffff		# %ds, %es, %ss
 	.long	0x00cf9200
 gdt32end:
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/sys/amd64/ia32/ia32_sigtramp.S b/sys/amd64/ia32/ia32_sigtramp.S
index 1a80f78a3234..8d700e1fe912 100644
--- a/sys/amd64/ia32/ia32_sigtramp.S
+++ b/sys/amd64/ia32/ia32_sigtramp.S
@@ -138,3 +138,5 @@ __vdso_lcall_tramp:
 	ud2
 #endif
 	.p2align 1
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/sys/amd64/sgx/sgx_support.S b/sys/amd64/sgx/sgx_support.S
index 4816f178e657..53fe359f3f41 100644
--- a/sys/amd64/sgx/sgx_support.S
+++ b/sys/amd64/sgx/sgx_support.S
@@ -66,3 +66,5 @@ sgx_onfault:
 	popq	%rbx
 	POP_FRAME_POINTER
 	ret
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/sys/amd64/vmm/amd/svm_support.S b/sys/amd64/vmm/amd/svm_support.S
index 26bf36b98f71..225a2a83e7b1 100644
--- a/sys/amd64/vmm/amd/svm_support.S
+++ b/sys/amd64/vmm/amd/svm_support.S
@@ -155,3 +155,5 @@ ENTRY(svm_launch)
 	VLEAVE
 	ret
 END(svm_launch)
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/sys/amd64/vmm/intel/vmx_support.S b/sys/amd64/vmm/intel/vmx_support.S
index 877e377f892d..9a3c6b3fd80b 100644
--- a/sys/amd64/vmm/intel/vmx_support.S
+++ b/sys/amd64/vmm/intel/vmx_support.S
@@ -268,3 +268,5 @@ ENTRY(vmx_call_isr)
 	VLEAVE
 	ret
 END(vmx_call_isr)
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/sys/crypto/aesni/aeskeys_amd64.S b/sys/crypto/aesni/aeskeys_amd64.S
index 667e64f441a5..8ae4a54a3d8d 100644
--- a/sys/crypto/aesni/aeskeys_amd64.S
+++ b/sys/crypto/aesni/aeskeys_amd64.S
@@ -219,3 +219,5 @@ ENTRY(aesni_set_deckey)
 	retq
 	.cfi_endproc
 END(aesni_set_deckey)
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/sys/dev/hyperv/vmbus/amd64/vmbus_vector.S b/sys/dev/hyperv/vmbus/amd64/vmbus_vector.S
index a15041ae7e32..f7479dc1f6f8 100644
--- a/sys/dev/hyperv/vmbus/amd64/vmbus_vector.S
+++ b/sys/dev/hyperv/vmbus/amd64/vmbus_vector.S
@@ -40,3 +40,5 @@
 	movq	%rsp, %rdi
 	call	vmbus_handle_intr
 	jmp	doreti
+
+	.section .note.GNU-stack,"",%progbits
diff --git a/sys/tools/vdso_wrap.S b/sys/tools/vdso_wrap.S
index 5a815fd6f499..865a7f1e14aa 100644
--- a/sys/tools/vdso_wrap.S
+++ b/sys/tools/vdso_wrap.S
@@ -46,3 +46,5 @@ VDSO_BLOB_START(VDSO_NAME):
 VDSO_BLOB_END(VDSO_NAME):
 	.globl	VDSO_BLOB_SIZE(VDSO_NAME)
 	.set	VDSO_BLOB_SIZE(VDSO_NAME), . - VDSO_BLOB_START(VDSO_NAME)
+
+	.section .note.GNU-stack,"",%progbits