| #ifndef _ASM_X86_UNWIND_HINTS_H |
| #define _ASM_X86_UNWIND_HINTS_H |
| |
| #include <linux/objtool.h> |
| |
| #include "orc_types.h" |
| |
| #ifdef __ASSEMBLY__ |
| |
| .macro UNWIND_HINT_EMPTY |
| UNWIND_HINT type=UNWIND_HINT_TYPE_CALL end=1 |
| .endm |
| |
| .macro UNWIND_HINT_ENTRY |
| UNWIND_HINT type=UNWIND_HINT_TYPE_ENTRY end=1 |
| .endm |
| |
| .macro UNWIND_HINT_REGS base=%rsp offset=0 indirect=0 extra=1 partial=0 |
| .if \base == %rsp |
| .if \indirect |
| .set sp_reg, ORC_REG_SP_INDIRECT |
| .else |
| .set sp_reg, ORC_REG_SP |
| .endif |
| .elseif \base == %rbp |
| .set sp_reg, ORC_REG_BP |
| .elseif \base == %rdi |
| .set sp_reg, ORC_REG_DI |
| .elseif \base == %rdx |
| .set sp_reg, ORC_REG_DX |
| .elseif \base == %r10 |
| .set sp_reg, ORC_REG_R10 |
| .else |
| .error "UNWIND_HINT_REGS: bad base register" |
| .endif |
| |
| .set sp_offset, \offset |
| |
| .if \partial |
| .set type, UNWIND_HINT_TYPE_REGS_PARTIAL |
| .elseif \extra == 0 |
| .set type, UNWIND_HINT_TYPE_REGS_PARTIAL |
| .set sp_offset, \offset + (16*8) |
| .else |
| .set type, UNWIND_HINT_TYPE_REGS |
| .endif |
| |
| UNWIND_HINT sp_reg=sp_reg sp_offset=sp_offset type=type |
| .endm |
| |
| .macro UNWIND_HINT_IRET_REGS base=%rsp offset=0 |
| UNWIND_HINT_REGS base=\base offset=\offset partial=1 |
| .endm |
| |
| .macro UNWIND_HINT_FUNC |
| UNWIND_HINT sp_reg=ORC_REG_SP sp_offset=8 type=UNWIND_HINT_TYPE_FUNC |
| .endm |
| |
| .macro UNWIND_HINT_SAVE |
| UNWIND_HINT type=UNWIND_HINT_TYPE_SAVE |
| .endm |
| |
| .macro UNWIND_HINT_RESTORE |
| UNWIND_HINT type=UNWIND_HINT_TYPE_RESTORE |
| .endm |
| |
| #else |
| |
| #define UNWIND_HINT_FUNC \ |
| UNWIND_HINT(ORC_REG_SP, 8, UNWIND_HINT_TYPE_FUNC, 0) |
| |
| #endif /* __ASSEMBLY__ */ |
| |
| #endif /* _ASM_X86_UNWIND_HINTS_H */ |
