1 #ifndef _ASM_X86_DWARF2_H
2 #define _ASM_X86_DWARF2_H
5 #warning "asm/dwarf2.h should be only included in pure assembly files"
9 * Macros for dwarf2 CFI unwind table entries.
10 * See "as.info" for details on these pseudo ops. Unfortunately
11 * they are only supported in very new binutils, so define them
12 * away for older version.
17 #define CFI_STARTPROC .cfi_startproc
18 #define CFI_ENDPROC .cfi_endproc
19 #define CFI_DEF_CFA .cfi_def_cfa
20 #define CFI_DEF_CFA_REGISTER .cfi_def_cfa_register
21 #define CFI_DEF_CFA_OFFSET .cfi_def_cfa_offset
22 #define CFI_ADJUST_CFA_OFFSET .cfi_adjust_cfa_offset
23 #define CFI_OFFSET .cfi_offset
24 #define CFI_REL_OFFSET .cfi_rel_offset
25 #define CFI_REGISTER .cfi_register
26 #define CFI_RESTORE .cfi_restore
27 #define CFI_REMEMBER_STATE .cfi_remember_state
28 #define CFI_RESTORE_STATE .cfi_restore_state
29 #define CFI_UNDEFINED .cfi_undefined
31 #ifdef CONFIG_AS_CFI_SIGNAL_FRAME
32 #define CFI_SIGNAL_FRAME .cfi_signal_frame
34 #define CFI_SIGNAL_FRAME
40 * Due to the structure of pre-exisiting code, don't use assembler line
41 * comment character # to ignore the arguments. Instead, use a dummy macro.
43 .macro cfi_ignore a
=0, b
=0, c
=0, d
=0
46 #define CFI_STARTPROC cfi_ignore
47 #define CFI_ENDPROC cfi_ignore
48 #define CFI_DEF_CFA cfi_ignore
49 #define CFI_DEF_CFA_REGISTER cfi_ignore
50 #define CFI_DEF_CFA_OFFSET cfi_ignore
51 #define CFI_ADJUST_CFA_OFFSET cfi_ignore
52 #define CFI_OFFSET cfi_ignore
53 #define CFI_REL_OFFSET cfi_ignore
54 #define CFI_REGISTER cfi_ignore
55 #define CFI_RESTORE cfi_ignore
56 #define CFI_REMEMBER_STATE cfi_ignore
57 #define CFI_RESTORE_STATE cfi_ignore
58 #define CFI_UNDEFINED cfi_ignore
59 #define CFI_SIGNAL_FRAME cfi_ignore
64 * An attempt to make CFI annotations more or less
65 * correct and shorter. It is implied that you know
66 * what you're doing if you use them.
72 CFI_ADJUST_CFA_OFFSET
8
77 CFI_ADJUST_CFA_OFFSET
-8
80 .macro movq_cfi reg offset
=0
81 movq
%\reg
, \
offset(%rsp
)
82 CFI_REL_OFFSET
\reg
, \offset
85 .macro movq_cfi_restore offset reg
86 movq \
offset(%rsp
), %\reg
89 #else /*!CONFIG_X86_64*/
92 CFI_ADJUST_CFA_OFFSET
4
97 CFI_ADJUST_CFA_OFFSET
-4
100 .macro movl_cfi reg offset
=0
101 movl
%\reg
, \
offset(%esp
)
102 CFI_REL_OFFSET
\reg
, \offset
105 .macro movl_cfi_restore offset reg
106 movl \
offset(%esp
), %\reg
109 #endif /*!CONFIG_X86_64*/
110 #endif /*__ASSEMBLY__*/
112 #endif /* _ASM_X86_DWARF2_H */