1 files changed, 12 insertions, 0 deletions

diff --git a/arch/x86/include/asm/dwarf2.h b/arch/x86/include/asm/dwarf2.h
index ae6253ab9029..733f7e91e7a9 100644
--- a/arch/x86/include/asm/dwarf2.h
+++ b/arch/x86/include/asm/dwarf2.h
@@ -34,6 +34,18 @@
 #define CFI_SIGNAL_FRAME
 #endif
 
+#if defined(CONFIG_AS_CFI_SECTIONS) && defined(__ASSEMBLY__)
+        /*
+         * Emit CFI data in .debug_frame sections, not .eh_frame sections.
+         * The latter we currently just discard since we don't do DWARF
+         * unwinding at runtime.  So only the offline DWARF information is
+         * useful to anyone.  Note we should not use this directive if this
+         * file is used in the vDSO assembly, or if vmlinux.lds.S gets
+         * changed so it doesn't discard .eh_frame.
+         */
+        .cfi_sections .debug_frame
+#endif
+
 #else
 
 /*