#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 sp_reg=ORC_REG_UNDEFINED type=UNWIND_HINT_TYPE_CALL 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 sp_offset=8 UNWIND_HINT sp_reg=ORC_REG_SP sp_offset=\sp_offset type=UNWIND_HINT_TYPE_CALL .endm /* * RET_OFFSET: Used on instructions that terminate a function; mostly RETURN * and sibling calls. On these, sp_offset denotes the expected offset from * initial_func_cfi. */ .macro UNWIND_HINT_RET_OFFSET sp_offset=8 UNWIND_HINT sp_reg=ORC_REG_SP type=UNWIND_HINT_TYPE_RET_OFFSET sp_offset=\sp_offset .endm #endif /* __ASSEMBLY__ */ #endif /* _ASM_X86_UNWIND_HINTS_H */