1 files changed, 57 insertions, 0 deletions

diff --git a/include/asm-x86/dwarf2_64.h b/include/asm-x86/dwarf2_64.h
new file mode 100644
index 000000000000..eedc08526b0b
--- /dev/null
+++ b/include/asm-x86/dwarf2_64.h
@@ -0,0 +1,57 @@
+#ifndef _DWARF2_H
+#define _DWARF2_H 1
+
+
+#ifndef __ASSEMBLY__
+#warning "asm/dwarf2.h should be only included in pure assembly files"
+#endif
+
+/* 
+   Macros for dwarf2 CFI unwind table entries.
+   See "as.info" for details on these pseudo ops. Unfortunately 
+   they are only supported in very new binutils, so define them 
+   away for older version. 
+ */
+
+#ifdef CONFIG_AS_CFI
+
+#define CFI_STARTPROC .cfi_startproc
+#define CFI_ENDPROC .cfi_endproc
+#define CFI_DEF_CFA .cfi_def_cfa
+#define CFI_DEF_CFA_REGISTER .cfi_def_cfa_register
+#define CFI_DEF_CFA_OFFSET .cfi_def_cfa_offset
+#define CFI_ADJUST_CFA_OFFSET .cfi_adjust_cfa_offset
+#define CFI_OFFSET .cfi_offset
+#define CFI_REL_OFFSET .cfi_rel_offset
+#define CFI_REGISTER .cfi_register
+#define CFI_RESTORE .cfi_restore
+#define CFI_REMEMBER_STATE .cfi_remember_state
+#define CFI_RESTORE_STATE .cfi_restore_state
+#define CFI_UNDEFINED .cfi_undefined
+#ifdef CONFIG_AS_CFI_SIGNAL_FRAME
+#define CFI_SIGNAL_FRAME .cfi_signal_frame
+#else
+#define CFI_SIGNAL_FRAME
+#endif
+
+#else
+
+/* use assembler line comment character # to ignore the arguments. */
+#define CFI_STARTPROC   #
+#define CFI_ENDPROC     #
+#define CFI_DEF_CFA     #
+#define CFI_DEF_CFA_REGISTER    #
+#define CFI_DEF_CFA_OFFSET      #
+#define CFI_ADJUST_CFA_OFFSET   #
+#define CFI_OFFSET      #
+#define CFI_REL_OFFSET  #
+#define CFI_REGISTER    #
+#define CFI_RESTORE     #
+#define CFI_REMEMBER_STATE      #
+#define CFI_RESTORE_STATE       #
+#define CFI_UNDEFINED   #
+#define CFI_SIGNAL_FRAME        #
+
+#endif
+
+#endif