| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef _ASM_X86_DWARF2_H |
| 3 | #define _ASM_X86_DWARF2_H |
| 4 | |
| 5 | #ifndef __ASSEMBLY__ |
| 6 | #warning "asm/dwarf2.h should be only included in pure assembly files" |
| 7 | #endif |
| 8 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 9 | #define CFI_STARTPROC .cfi_startproc |
| 10 | #define CFI_ENDPROC .cfi_endproc |
| 11 | #define CFI_DEF_CFA .cfi_def_cfa |
| 12 | #define CFI_DEF_CFA_REGISTER .cfi_def_cfa_register |
| 13 | #define CFI_DEF_CFA_OFFSET .cfi_def_cfa_offset |
| 14 | #define CFI_ADJUST_CFA_OFFSET .cfi_adjust_cfa_offset |
| 15 | #define CFI_OFFSET .cfi_offset |
| 16 | #define CFI_REL_OFFSET .cfi_rel_offset |
| 17 | #define CFI_REGISTER .cfi_register |
| 18 | #define CFI_RESTORE .cfi_restore |
| 19 | #define CFI_REMEMBER_STATE .cfi_remember_state |
| 20 | #define CFI_RESTORE_STATE .cfi_restore_state |
| 21 | #define CFI_UNDEFINED .cfi_undefined |
| 22 | #define CFI_ESCAPE .cfi_escape |
| 23 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 24 | #ifndef BUILD_VDSO |
| 25 | /* |
| 26 | * Emit CFI data in .debug_frame sections, not .eh_frame sections. |
| 27 | * The latter we currently just discard since we don't do DWARF |
| 28 | * unwinding at runtime. So only the offline DWARF information is |
| Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 29 | * useful to anyone. Note we should not use this directive if we |
| 30 | * ever decide to enable DWARF unwinding at runtime. |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 31 | */ |
| 32 | .cfi_sections .debug_frame |
| 33 | #else |
| 34 | /* |
| 35 | * For the vDSO, emit both runtime unwind information and debug |
| 36 | * symbols for the .dbg file. |
| 37 | */ |
| 38 | .cfi_sections .eh_frame, .debug_frame |
| 39 | #endif |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 40 | |
| 41 | #endif /* _ASM_X86_DWARF2_H */ |