[xen staging] xen: move __ro_after_init section symbols to xen/sections.h

[patchbot@xxxxxxx]

commit 04289eca9ea1ff1569c2849552dd3425434b3827
Author:     Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
AuthorDate: Mon Jun 30 10:05:04 2025 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Mon Jun 30 10:05:04 2025 +0200

    xen: move __ro_after_init section symbols to xen/sections.h
    
    Instead of declaring __ro_after_init_{start,end} in each architecture's
    asm/setup.h, move these declarations to the common header xen/sections.h.
    
    This centralizes the declarations and reduces duplication across
    architectures.
    
    No functional change intended.
    
    Signed-off-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Julien Grall <jgrall@xxxxxxxxxx>
---
 xen/arch/arm/include/asm/setup.h | 2 --
 xen/arch/x86/include/asm/setup.h | 1 -
 xen/include/xen/sections.h       | 3 +++
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/xen/arch/arm/include/asm/setup.h b/xen/arch/arm/include/asm/setup.h
index 2b58549c1a..b199d92a42 100644
--- a/xen/arch/arm/include/asm/setup.h
+++ b/xen/arch/arm/include/asm/setup.h
@@ -65,8 +65,6 @@ int map_irq_to_domain(struct domain *d, unsigned int irq,
 int map_range_to_domain(const struct dt_device_node *dev,
                         uint64_t addr, uint64_t len, void *data);
 
-extern const char __ro_after_init_start[], __ro_after_init_end[];
-
 struct init_info
 {
     /* Pointer to the stack, used by head.S when entering in C */
diff --git a/xen/arch/x86/include/asm/setup.h b/xen/arch/x86/include/asm/setup.h
index ac34c69855..b01e83a8ed 100644
--- a/xen/arch/x86/include/asm/setup.h
+++ b/xen/arch/x86/include/asm/setup.h
@@ -5,7 +5,6 @@
 #include <asm/numa.h>
 
 extern const char __2M_text_start[], __2M_text_end[];
-extern const char __ro_after_init_start[], __ro_after_init_end[];
 extern const char __2M_rodata_start[], __2M_rodata_end[];
 extern char __2M_init_start[], __2M_init_end[];
 extern char __2M_rwdata_start[], __2M_rwdata_end[];
diff --git a/xen/include/xen/sections.h b/xen/include/xen/sections.h
index fe49d7d0e6..cd542bfe10 100644
--- a/xen/include/xen/sections.h
+++ b/xen/include/xen/sections.h
@@ -5,6 +5,9 @@
 
 #include <xen/compiler.h>
 
+/* SAF-0-safe */
+extern const char __ro_after_init_start[], __ro_after_init_end[];
+
 /* SAF-0-safe */
 extern char __init_begin[], __init_end[];
 #define is_init_section(p) ({                           \
--
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