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- #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 */
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