2023-08-30 17:31:07 +02:00
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#ifndef _ASM_X86_UNWIND_HINTS_H
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#define _ASM_X86_UNWIND_HINTS_H
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#include <linux/objtool.h>
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#include "orc_types.h"
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#ifdef __ASSEMBLY__
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2023-10-24 12:59:35 +02:00
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.macro UNWIND_HINT_END_OF_STACK
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UNWIND_HINT type=UNWIND_HINT_TYPE_END_OF_STACK
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.endm
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.macro UNWIND_HINT_UNDEFINED
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UNWIND_HINT type=UNWIND_HINT_TYPE_UNDEFINED
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2023-08-30 17:31:07 +02:00
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.endm
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.macro UNWIND_HINT_ENTRY
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2023-10-24 12:59:35 +02:00
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VALIDATE_UNRET_BEGIN
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UNWIND_HINT_END_OF_STACK
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2023-08-30 17:31:07 +02:00
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.endm
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.macro UNWIND_HINT_REGS base=%rsp offset=0 indirect=0 extra=1 partial=0 signal=1
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.if \base == %rsp
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.if \indirect
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.set sp_reg, ORC_REG_SP_INDIRECT
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.else
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.set sp_reg, ORC_REG_SP
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.endif
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.elseif \base == %rbp
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.set sp_reg, ORC_REG_BP
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.elseif \base == %rdi
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.set sp_reg, ORC_REG_DI
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.elseif \base == %rdx
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.set sp_reg, ORC_REG_DX
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.elseif \base == %r10
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.set sp_reg, ORC_REG_R10
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.else
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.error "UNWIND_HINT_REGS: bad base register"
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.endif
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.set sp_offset, \offset
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.if \partial
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.set type, UNWIND_HINT_TYPE_REGS_PARTIAL
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.elseif \extra == 0
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.set type, UNWIND_HINT_TYPE_REGS_PARTIAL
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.set sp_offset, \offset + (16*8)
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.else
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.set type, UNWIND_HINT_TYPE_REGS
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.endif
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UNWIND_HINT sp_reg=sp_reg sp_offset=sp_offset type=type signal=\signal
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.endm
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.macro UNWIND_HINT_IRET_REGS base=%rsp offset=0 signal=1
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UNWIND_HINT_REGS base=\base offset=\offset partial=1 signal=\signal
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.endm
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2023-10-24 12:59:35 +02:00
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.macro UNWIND_HINT_IRET_ENTRY base=%rsp offset=0 signal=1
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VALIDATE_UNRET_BEGIN
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UNWIND_HINT_IRET_REGS base=\base offset=\offset signal=\signal
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.endm
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2023-08-30 17:31:07 +02:00
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.macro UNWIND_HINT_FUNC
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UNWIND_HINT sp_reg=ORC_REG_SP sp_offset=8 type=UNWIND_HINT_TYPE_FUNC
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.endm
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.macro UNWIND_HINT_SAVE
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UNWIND_HINT type=UNWIND_HINT_TYPE_SAVE
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.endm
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.macro UNWIND_HINT_RESTORE
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UNWIND_HINT type=UNWIND_HINT_TYPE_RESTORE
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.endm
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#else
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2023-10-24 12:59:35 +02:00
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#define UNWIND_HINT_UNDEFINED \
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UNWIND_HINT(UNWIND_HINT_TYPE_UNDEFINED, 0, 0, 0)
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2023-08-30 17:31:07 +02:00
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#define UNWIND_HINT_FUNC \
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2023-10-24 12:59:35 +02:00
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UNWIND_HINT(UNWIND_HINT_TYPE_FUNC, ORC_REG_SP, 8, 0)
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#define UNWIND_HINT_SAVE \
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UNWIND_HINT(UNWIND_HINT_TYPE_SAVE, 0, 0, 0)
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#define UNWIND_HINT_RESTORE \
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UNWIND_HINT(UNWIND_HINT_TYPE_RESTORE, 0, 0, 0)
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2023-08-30 17:31:07 +02:00
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#endif /* __ASSEMBLY__ */
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#endif /* _ASM_X86_UNWIND_HINTS_H */
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