Viewing file:  unwind_hints.h (1.43 KB) -rw-r--r--
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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
#endif /* __ASSEMBLY__ */
#endif /* _ASM_X86_UNWIND_HINTS_H */
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