projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1965aae3 PA |
1 | #ifndef _ASM_X86_DWARF2_H |
| 2 | #define _ASM_X86_DWARF2_H | |
| 392a0fc9 GC |
3 | |
| 4 | #ifndef __ASSEMBLY__ | |
| 5 | #warning "asm/dwarf2.h should be only included in pure assembly files" | |
| 6 | #endif | |
| 7 | ||
| 8 | /* | |
| 8a2503fa CG |
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. | |
| 392a0fc9 GC |
13 | */ |
| 14 | ||
| 15 | #ifdef CONFIG_AS_CFI | |
| 16 | ||
| 8a2503fa CG |
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 | |
| 392a0fc9 GC |
30 | |
| 31 | #ifdef CONFIG_AS_CFI_SIGNAL_FRAME | |
| 8a2503fa | 32 | #define CFI_SIGNAL_FRAME .cfi_signal_frame |
| 392a0fc9 GC |
33 | #else |
| 34 | #define CFI_SIGNAL_FRAME | |
| 35 | #endif | |
| 36 | ||
| 96a388de | 37 | #else |
| 392a0fc9 | 38 | |
| 8a2503fa CG |
39 | /* |
| 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. | |
| 42 | */ | |
| 3f1c3872 | 43 | .macro cfi_ignore a=0, b=0, c=0, d=0 |
| 392a0fc9 GC |
44 | .endm |
| 45 | ||
| 8a2503fa CG |
46 | #define CFI_STARTPROC cfi_ignore |
| 47 | #define CFI_ENDPROC cfi_ignore | |
| 48 | #define CFI_DEF_CFA cfi_ignore | |
| 3f1c3872 KW |
49 | #define CFI_DEF_CFA_REGISTER cfi_ignore |
| 50 | #define CFI_DEF_CFA_OFFSET cfi_ignore | |
| 51 | #define CFI_ADJUST_CFA_OFFSET cfi_ignore | |
| 8a2503fa CG |
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 | |
| 392a0fc9 GC |
60 | |
| 61 | #endif | |
| 62 | ||
| 8a2503fa CG |
63 | /* |
| 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. | |
| 67 | */ | |
| 68 | #ifdef __ASSEMBLY__ | |
| 69 | #ifdef CONFIG_X86_64 | |
| 70 | .macro pushq_cfi reg | |
| 71 | pushq \reg | |
| 72 | CFI_ADJUST_CFA_OFFSET 8 | |
| 73 | .endm | |
| 74 | ||
| 75 | .macro popq_cfi reg | |
| 76 | popq \reg | |
| 77 | CFI_ADJUST_CFA_OFFSET -8 | |
| 78 | .endm | |
| 79 | ||
| 80 | .macro movq_cfi reg offset=0 | |
| 81 | movq %\reg, \offset(%rsp) | |
| 82 | CFI_REL_OFFSET \reg, \offset | |
| 83 | .endm | |
| 84 | ||
| 85 | .macro movq_cfi_restore offset reg | |
| 86 | movq \offset(%rsp), %\reg | |
| 87 | CFI_RESTORE \reg | |
| 88 | .endm | |
| 89 | #else /*!CONFIG_X86_64*/ | |
| 90 | ||
| 91 | /* 32bit defenitions are missed yet */ | |
| 92 | ||
| 93 | #endif /*!CONFIG_X86_64*/ | |
| 94 | #endif /*__ASSEMBLY__*/ | |
| 95 | ||
| 1965aae3 | 96 | #endif /* _ASM_X86_DWARF2_H */ |