1 #ifndef _ASM_X86_UNWIND_HINTS_H 2 #define _ASM_X86_UNWIND_HINTS_H 3 4 #include <linux/objtool.h> 5 6 #include "orc_types.h" 7 8 #ifdef __ASSEMBLY__ 9 10 .macro UNWIND_HINT_EMPTY 11 UNWIND_HINT sp_reg=ORC_REG_UNDEFINED type=UNWIND_HINT_TYPE_CALL end=1 12 .endm 13 14 .macro UNWIND_HINT_REGS base=%rsp offset=0 indirect=0 extra=1 partial=0 15 .if \base == %rsp 16 .if \indirect 17 .set sp_reg, ORC_REG_SP_INDIRECT 18 .else 19 .set sp_reg, ORC_REG_SP 20 .endif 21 .elseif \base == %rbp 22 .set sp_reg, ORC_REG_BP 23 .elseif \base == %rdi 24 .set sp_reg, ORC_REG_DI 25 .elseif \base == %rdx 26 .set sp_reg, ORC_REG_DX 27 .elseif \base == %r10 28 .set sp_reg, ORC_REG_R10 29 .else 30 .error "UNWIND_HINT_REGS: bad base register" 31 .endif 32 33 .set sp_offset, \offset 34 35 .if \partial 36 .set type, UNWIND_HINT_TYPE_REGS_PARTIAL 37 .elseif \extra == 0 38 .set type, UNWIND_HINT_TYPE_REGS_PARTIAL 39 .set sp_offset, \offset + (16*8) 40 .else 41 .set type, UNWIND_HINT_TYPE_REGS 42 .endif 43 44 UNWIND_HINT sp_reg=sp_reg sp_offset=sp_offset type=type 45 .endm 46 47 .macro UNWIND_HINT_IRET_REGS base=%rsp offset=0 48 UNWIND_HINT_REGS base=\base offset=\offset partial=1 49 .endm 50 51 .macro UNWIND_HINT_FUNC 52 UNWIND_HINT sp_reg=ORC_REG_SP sp_offset=8 type=UNWIND_HINT_TYPE_FUNC 53 .endm 54 55 #endif /* __ASSEMBLY__ */ 56 57 #endif /* _ASM_X86_UNWIND_HINTS_H */ 58