Edit File: dwarf2.h
#ifndef _ASM_X86_DWARF2_H #define _ASM_X86_DWARF2_H #ifndef __ASSEMBLY__ #warning "asm/dwarf2.h should be only included in pure assembly files" #endif /* * Macros for dwarf2 CFI unwind table entries. * See "as.info" for details on these pseudo ops. Unfortunately * they are only supported in very new binutils, so define them * away for older version. */ #ifdef CONFIG_AS_CFI #define CFI_STARTPROC .cfi_startproc #define CFI_ENDPROC .cfi_endproc #define CFI_DEF_CFA .cfi_def_cfa #define CFI_DEF_CFA_REGISTER .cfi_def_cfa_register #define CFI_DEF_CFA_OFFSET .cfi_def_cfa_offset #define CFI_ADJUST_CFA_OFFSET .cfi_adjust_cfa_offset #define CFI_OFFSET .cfi_offset #define CFI_REL_OFFSET .cfi_rel_offset #define CFI_REGISTER .cfi_register #define CFI_RESTORE .cfi_restore #define CFI_REMEMBER_STATE .cfi_remember_state #define CFI_RESTORE_STATE .cfi_restore_state #define CFI_UNDEFINED .cfi_undefined #define CFI_ESCAPE .cfi_escape #ifdef CONFIG_AS_CFI_SIGNAL_FRAME #define CFI_SIGNAL_FRAME .cfi_signal_frame #else #define CFI_SIGNAL_FRAME #endif #if defined(CONFIG_AS_CFI_SECTIONS) && defined(__ASSEMBLY__) /* * Emit CFI data in .debug_frame sections, not .eh_frame sections. * The latter we currently just discard since we don't do DWARF * unwinding at runtime. So only the offline DWARF information is * useful to anyone. Note we should not use this directive if this * file is used in the vDSO assembly, or if vmlinux.lds.S gets * changed so it doesn't discard .eh_frame. */ .cfi_sections .debug_frame #endif #else /* * Due to the structure of pre-exisiting code, don't use assembler line * comment character # to ignore the arguments. Instead, use a dummy macro. */ .macro cfi_ignore a=0, b=0, c=0, d=0 .endm #define CFI_STARTPROC cfi_ignore #define CFI_ENDPROC cfi_ignore #define CFI_DEF_CFA cfi_ignore #define CFI_DEF_CFA_REGISTER cfi_ignore #define CFI_DEF_CFA_OFFSET cfi_ignore #define CFI_ADJUST_CFA_OFFSET cfi_ignore #define CFI_OFFSET cfi_ignore #define CFI_REL_OFFSET cfi_ignore #define CFI_REGISTER cfi_ignore #define CFI_RESTORE cfi_ignore #define CFI_REMEMBER_STATE cfi_ignore #define CFI_RESTORE_STATE cfi_ignore #define CFI_UNDEFINED cfi_ignore #define CFI_ESCAPE cfi_ignore #define CFI_SIGNAL_FRAME cfi_ignore #endif /* * An attempt to make CFI annotations more or less * correct and shorter. It is implied that you know * what you're doing if you use them. */ #ifdef __ASSEMBLY__ #ifdef CONFIG_X86_64 .macro pushq_cfi reg pushq \reg CFI_ADJUST_CFA_OFFSET 8 .endm .macro popq_cfi reg popq \reg CFI_ADJUST_CFA_OFFSET -8 .endm .macro pushfq_cfi pushfq CFI_ADJUST_CFA_OFFSET 8 .endm .macro popfq_cfi popfq CFI_ADJUST_CFA_OFFSET -8 .endm .macro movq_cfi reg offset=0 movq %\reg, \offset(%rsp) CFI_REL_OFFSET \reg, \offset .endm .macro movq_cfi_restore offset reg movq \offset(%rsp), %\reg CFI_RESTORE \reg .endm #else /*!CONFIG_X86_64*/ .macro pushl_cfi reg pushl \reg CFI_ADJUST_CFA_OFFSET 4 .endm .macro popl_cfi reg popl \reg CFI_ADJUST_CFA_OFFSET -4 .endm .macro pushfl_cfi pushfl CFI_ADJUST_CFA_OFFSET 4 .endm .macro popfl_cfi popfl CFI_ADJUST_CFA_OFFSET -4 .endm .macro movl_cfi reg offset=0 movl %\reg, \offset(%esp) CFI_REL_OFFSET \reg, \offset .endm .macro movl_cfi_restore offset reg movl \offset(%esp), %\reg CFI_RESTORE \reg .endm #endif /*!CONFIG_X86_64*/ #endif /*__ASSEMBLY__*/ #endif /* _ASM_X86_DWARF2_H */