LCOV - code coverage report
Current view: top level - elfutils/libdw - libdw.h (source / functions) Hit Total Coverage
Test: lcov.out Lines: 2 2 100.0 %
Date: 2013-03-08 Functions: 0 0 -
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 2 4 50.0 %

           Branch data     Line data    Source code
       1                 :            : /* Interfaces for libdw.
       2                 :            :    Copyright (C) 2002-2010 Red Hat, Inc.
       3                 :            :    This file is part of elfutils.
       4                 :            : 
       5                 :            :    This file is free software; you can redistribute it and/or modify
       6                 :            :    it under the terms of either
       7                 :            : 
       8                 :            :      * the GNU Lesser General Public License as published by the Free
       9                 :            :        Software Foundation; either version 3 of the License, or (at
      10                 :            :        your option) any later version
      11                 :            : 
      12                 :            :    or
      13                 :            : 
      14                 :            :      * the GNU General Public License as published by the Free
      15                 :            :        Software Foundation; either version 2 of the License, or (at
      16                 :            :        your option) any later version
      17                 :            : 
      18                 :            :    or both in parallel, as here.
      19                 :            : 
      20                 :            :    elfutils is distributed in the hope that it will be useful, but
      21                 :            :    WITHOUT ANY WARRANTY; without even the implied warranty of
      22                 :            :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      23                 :            :    General Public License for more details.
      24                 :            : 
      25                 :            :    You should have received copies of the GNU General Public License and
      26                 :            :    the GNU Lesser General Public License along with this program.  If
      27                 :            :    not, see <http://www.gnu.org/licenses/>.  */
      28                 :            : 
      29                 :            : #ifndef _LIBDW_H
      30                 :            : #define _LIBDW_H        1
      31                 :            : 
      32                 :            : #include <gelf.h>
      33                 :            : #include <stdbool.h>
      34                 :            : #include <stddef.h>
      35                 :            : 
      36                 :            : 
      37                 :            : #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 3)
      38                 :            : # define __nonnull_attribute__(...) __attribute__ ((__nonnull__ (__VA_ARGS__)))
      39                 :            : # define __deprecated_attribute__ __attribute__ ((__deprecated__))
      40                 :            : #else
      41                 :            : # define __nonnull_attribute__(args...)
      42                 :            : # define __deprecated_attribute__
      43                 :            : #endif
      44                 :            : 
      45                 :            : 
      46                 :            : #ifdef __GNUC_STDC_INLINE__
      47                 :            : # define __libdw_extern_inline extern __inline __attribute__ ((__gnu_inline__))
      48                 :            : #else
      49                 :            : # define __libdw_extern_inline extern __inline
      50                 :            : #endif
      51                 :            : 
      52                 :            : 
      53                 :            : /* Mode for the session.  */
      54                 :            : typedef enum
      55                 :            :   {
      56                 :            :     DWARF_C_READ,               /* Read .. */
      57                 :            :     DWARF_C_RDWR,               /* Read and write .. */
      58                 :            :     DWARF_C_WRITE,              /* Write .. */
      59                 :            :   }
      60                 :            : Dwarf_Cmd;
      61                 :            : 
      62                 :            : 
      63                 :            : /* Callback results.  */
      64                 :            : enum
      65                 :            : {
      66                 :            :   DWARF_CB_OK = 0,
      67                 :            :   DWARF_CB_ABORT
      68                 :            : };
      69                 :            : 
      70                 :            : 
      71                 :            : /* Error values.  */
      72                 :            : enum
      73                 :            :   {
      74                 :            :     DW_TAG_invalid = 0
      75                 :            : #define DW_TAG_invalid  DW_TAG_invalid
      76                 :            :   };
      77                 :            : 
      78                 :            : 
      79                 :            : /* Type for offset in DWARF file.  */
      80                 :            : typedef GElf_Off Dwarf_Off;
      81                 :            : 
      82                 :            : /* Type for address in DWARF file.  */
      83                 :            : typedef GElf_Addr Dwarf_Addr;
      84                 :            : 
      85                 :            : /* Integer types.  Big enough to hold any numeric value.  */
      86                 :            : typedef GElf_Xword Dwarf_Word;
      87                 :            : typedef GElf_Sxword Dwarf_Sword;
      88                 :            : /* For the times we know we do not need that much.  */
      89                 :            : typedef GElf_Half Dwarf_Half;
      90                 :            : 
      91                 :            : 
      92                 :            : /* DWARF abbreviation record.  */
      93                 :            : typedef struct Dwarf_Abbrev Dwarf_Abbrev;
      94                 :            : 
      95                 :            : /* Returned to show the last DIE has be returned.  */
      96                 :            : #define DWARF_END_ABBREV ((Dwarf_Abbrev *) -1l)
      97                 :            : 
      98                 :            : /* Source code line information for CU.  */
      99                 :            : typedef struct Dwarf_Lines_s Dwarf_Lines;
     100                 :            : 
     101                 :            : /* One source code line information.  */
     102                 :            : typedef struct Dwarf_Line_s Dwarf_Line;
     103                 :            : 
     104                 :            : /* Source file information.  */
     105                 :            : typedef struct Dwarf_Files_s Dwarf_Files;
     106                 :            : 
     107                 :            : /* One address range record.  */
     108                 :            : typedef struct Dwarf_Arange_s Dwarf_Arange;
     109                 :            : 
     110                 :            : /* Address ranges of a file.  */
     111                 :            : typedef struct Dwarf_Aranges_s Dwarf_Aranges;
     112                 :            : 
     113                 :            : /* CU representation.  */
     114                 :            : struct Dwarf_CU;
     115                 :            : 
     116                 :            : /* Macro information.  */
     117                 :            : typedef struct Dwarf_Macro_s Dwarf_Macro;
     118                 :            : 
     119                 :            : /* Attribute representation.  */
     120                 :            : typedef struct
     121                 :            : {
     122                 :            :   unsigned int code;
     123                 :            :   unsigned int form;
     124                 :            :   unsigned char *valp;
     125                 :            :   struct Dwarf_CU *cu;
     126                 :            : } Dwarf_Attribute;
     127                 :            : 
     128                 :            : 
     129                 :            : /* Data block representation.  */
     130                 :            : typedef struct
     131                 :            : {
     132                 :            :   Dwarf_Word length;
     133                 :            :   unsigned char *data;
     134                 :            : } Dwarf_Block;
     135                 :            : 
     136                 :            : 
     137                 :            : /* DIE information.  */
     138                 :            : typedef struct
     139                 :            : {
     140                 :            :   /* The offset can be computed from the address.  */
     141                 :            :   void *addr;
     142                 :            :   struct Dwarf_CU *cu;
     143                 :            :   Dwarf_Abbrev *abbrev;
     144                 :            :   // XXX We'll see what other information will be needed.
     145                 :            :   long int padding__;
     146                 :            : } Dwarf_Die;
     147                 :            : 
     148                 :            : /* Returned to show the last DIE has be returned.  */
     149                 :            : #define DWARF_END_DIE ((Dwarf_Die *) -1l)
     150                 :            : 
     151                 :            : 
     152                 :            : /* Global symbol information.  */
     153                 :            : typedef struct
     154                 :            : {
     155                 :            :   Dwarf_Off cu_offset;
     156                 :            :   Dwarf_Off die_offset;
     157                 :            :   const char *name;
     158                 :            : } Dwarf_Global;
     159                 :            : 
     160                 :            : 
     161                 :            : /* One operation in a DWARF location expression.
     162                 :            :    A location expression is an array of these.  */
     163                 :            : typedef struct
     164                 :            : {
     165                 :            :   uint8_t atom;                 /* Operation */
     166                 :            :   Dwarf_Word number;            /* Operand */
     167                 :            :   Dwarf_Word number2;           /* Possible second operand */
     168                 :            :   Dwarf_Word offset;            /* Offset in location expression */
     169                 :            : } Dwarf_Op;
     170                 :            : 
     171                 :            : 
     172                 :            : /* This describes one Common Information Entry read from a CFI section.
     173                 :            :    Pointers here point into the DATA->d_buf block passed to dwarf_next_cfi.  */
     174                 :            : typedef struct
     175                 :            : {
     176                 :            :   Dwarf_Off CIE_id;      /* Always DW_CIE_ID_64 in Dwarf_CIE structures.  */
     177                 :            : 
     178                 :            :   /* Instruction stream describing initial state used by FDEs.  If
     179                 :            :      we did not understand the whole augmentation string and it did
     180                 :            :      not use 'z', then there might be more augmentation data here
     181                 :            :      (and in FDEs) before the actual instructions.  */
     182                 :            :   const uint8_t *initial_instructions;
     183                 :            :   const uint8_t *initial_instructions_end;
     184                 :            : 
     185                 :            :   Dwarf_Word code_alignment_factor;
     186                 :            :   Dwarf_Sword data_alignment_factor;
     187                 :            :   Dwarf_Word return_address_register;
     188                 :            : 
     189                 :            :   const char *augmentation;     /* Augmentation string.  */
     190                 :            : 
     191                 :            :   /* Augmentation data, might be NULL.  The size is correct only if
     192                 :            :      we understood the augmentation string sufficiently.  */
     193                 :            :   const uint8_t *augmentation_data;
     194                 :            :   size_t augmentation_data_size;
     195                 :            :   size_t fde_augmentation_data_size;
     196                 :            : } Dwarf_CIE;
     197                 :            : 
     198                 :            : /* This describes one Frame Description Entry read from a CFI section.
     199                 :            :    Pointers here point into the DATA->d_buf block passed to dwarf_next_cfi.  */
     200                 :            : typedef struct
     201                 :            : {
     202                 :            :   /* Section offset of CIE this FDE refers to.  This will never be
     203                 :            :      DW_CIE_ID_64 in an FDE.  If this value is DW_CIE_ID_64, this is
     204                 :            :      actually a Dwarf_CIE structure.  */
     205                 :            :   Dwarf_Off CIE_pointer;
     206                 :            : 
     207                 :            :   /* We can't really decode anything further without looking up the CIE
     208                 :            :      and checking its augmentation string.  Here follows the encoded
     209                 :            :      initial_location and address_range, then any augmentation data,
     210                 :            :      then the instruction stream.  This FDE describes PC locations in
     211                 :            :      the byte range [initial_location, initial_location+address_range).
     212                 :            :      When the CIE augmentation string uses 'z', the augmentation data is
     213                 :            :      a DW_FORM_block (self-sized).  Otherwise, when we understand the
     214                 :            :      augmentation string completely, fde_augmentation_data_size gives
     215                 :            :      the number of bytes of augmentation data before the instructions.  */
     216                 :            :   const uint8_t *start;
     217                 :            :   const uint8_t *end;
     218                 :            : } Dwarf_FDE;
     219                 :            : 
     220                 :            : /* Each entry in a CFI section is either a CIE described by Dwarf_CIE or
     221                 :            :    an FDE described by Dward_FDE.  Check CIE_id to see which you have.  */
     222                 :            : typedef union
     223                 :            : {
     224                 :            :   Dwarf_Off CIE_id;      /* Always DW_CIE_ID_64 in Dwarf_CIE structures.  */
     225                 :            :   Dwarf_CIE cie;
     226                 :            :   Dwarf_FDE fde;
     227                 :            : } Dwarf_CFI_Entry;
     228                 :            : 
     229                 :            : #define dwarf_cfi_cie_p(entry)  ((entry)->cie.CIE_id == DW_CIE_ID_64)
     230                 :            : 
     231                 :            : /* Opaque type representing a frame state described by CFI.  */
     232                 :            : typedef struct Dwarf_Frame_s Dwarf_Frame;
     233                 :            : 
     234                 :            : /* Opaque type representing a CFI section found in a DWARF or ELF file.  */
     235                 :            : typedef struct Dwarf_CFI_s Dwarf_CFI;
     236                 :            : 
     237                 :            : 
     238                 :            : /* Handle for debug sessions.  */
     239                 :            : typedef struct Dwarf Dwarf;
     240                 :            : 
     241                 :            : 
     242                 :            : /* Out-Of-Memory handler.  */
     243                 :            : #if __GNUC__ < 4
     244                 :            : typedef void (*Dwarf_OOM) (void);
     245                 :            : #else
     246                 :            : typedef void (*__attribute__ ((noreturn)) Dwarf_OOM) (void);
     247                 :            : #endif
     248                 :            : 
     249                 :            : 
     250                 :            : #ifdef __cplusplus
     251                 :            : extern "C" {
     252                 :            : #endif
     253                 :            : 
     254                 :            : /* Create a handle for a new debug session.  */
     255                 :            : extern Dwarf *dwarf_begin (int fildes, Dwarf_Cmd cmd);
     256                 :            : 
     257                 :            : /* Create a handle for a new debug session for an ELF file.  */
     258                 :            : extern Dwarf *dwarf_begin_elf (Elf *elf, Dwarf_Cmd cmd, Elf_Scn *scngrp);
     259                 :            : 
     260                 :            : /* Retrieve ELF descriptor used for DWARF access.  */
     261                 :            : extern Elf *dwarf_getelf (Dwarf *dwarf);
     262                 :            : 
     263                 :            : /* Release debugging handling context.  */
     264                 :            : extern int dwarf_end (Dwarf *dwarf);
     265                 :            : 
     266                 :            : 
     267                 :            : /* Get the data block for the .debug_info section.  */
     268                 :            : extern Elf_Data *dwarf_getscn_info (Dwarf *dwarf);
     269                 :            : 
     270                 :            : /* Read the header for the DWARF CU.  */
     271                 :            : extern int dwarf_nextcu (Dwarf *dwarf, Dwarf_Off off, Dwarf_Off *next_off,
     272                 :            :                          size_t *header_sizep, Dwarf_Off *abbrev_offsetp,
     273                 :            :                          uint8_t *address_sizep, uint8_t *offset_sizep)
     274                 :            :      __nonnull_attribute__ (3);
     275                 :            : 
     276                 :            : /* Read the header of a DWARF CU or type unit.  If TYPE_SIGNATUREP is not
     277                 :            :    null, this reads a type unit from the .debug_types section; otherwise
     278                 :            :    this reads a CU from the .debug_info section.  */
     279                 :            : extern int dwarf_next_unit (Dwarf *dwarf, Dwarf_Off off, Dwarf_Off *next_off,
     280                 :            :                             size_t *header_sizep, Dwarf_Half *versionp,
     281                 :            :                             Dwarf_Off *abbrev_offsetp,
     282                 :            :                             uint8_t *address_sizep, uint8_t *offset_sizep,
     283                 :            :                             uint64_t *type_signaturep, Dwarf_Off *type_offsetp)
     284                 :            :      __nonnull_attribute__ (3);
     285                 :            : 
     286                 :            : 
     287                 :            : /* Decode one DWARF CFI entry (CIE or FDE) from the raw section data.
     288                 :            :    The E_IDENT from the originating ELF file indicates the address
     289                 :            :    size and byte order used in the CFI section contained in DATA;
     290                 :            :    EH_FRAME_P should be true for .eh_frame format and false for
     291                 :            :    .debug_frame format.  OFFSET is the byte position in the section
     292                 :            :    to start at; on return *NEXT_OFFSET is filled in with the byte
     293                 :            :    position immediately after this entry.
     294                 :            : 
     295                 :            :    On success, returns 0 and fills in *ENTRY; use dwarf_cfi_cie_p to
     296                 :            :    see whether ENTRY->cie or ENTRY->fde is valid.
     297                 :            : 
     298                 :            :    On errors, returns -1.  Some format errors will permit safely
     299                 :            :    skipping to the next CFI entry though the current one is unusable.
     300                 :            :    In that case, *NEXT_OFF will be updated before a -1 return.
     301                 :            : 
     302                 :            :    If there are no more CFI entries left in the section,
     303                 :            :    returns 1 and sets *NEXT_OFFSET to (Dwarf_Off) -1.  */
     304                 :            : extern int dwarf_next_cfi (const unsigned char e_ident[],
     305                 :            :                            Elf_Data *data, bool eh_frame_p,
     306                 :            :                            Dwarf_Off offset, Dwarf_Off *next_offset,
     307                 :            :                            Dwarf_CFI_Entry *entry)
     308                 :            :   __nonnull_attribute__ (1, 2, 5, 6);
     309                 :            : 
     310                 :            : /* Use the CFI in the DWARF .debug_frame section.
     311                 :            :    Returns NULL if there is no such section (not an error).
     312                 :            :    The pointer returned can be used until dwarf_end is called on DWARF,
     313                 :            :    and must not be passed to dwarf_cfi_end.
     314                 :            :    Calling this more than once returns the same pointer.  */
     315                 :            : extern Dwarf_CFI *dwarf_getcfi (Dwarf *dwarf);
     316                 :            : 
     317                 :            : /* Use the CFI in the ELF file's exception-handling data.
     318                 :            :    Returns NULL if there is no such data.
     319                 :            :    The pointer returned can be used until elf_end is called on ELF,
     320                 :            :    and must be passed to dwarf_cfi_end before then.
     321                 :            :    Calling this more than once allocates independent data structures.  */
     322                 :            : extern Dwarf_CFI *dwarf_getcfi_elf (Elf *elf);
     323                 :            : 
     324                 :            : /* Release resources allocated by dwarf_getcfi_elf.  */
     325                 :            : extern int dwarf_cfi_end (Dwarf_CFI *cache);
     326                 :            : 
     327                 :            : 
     328                 :            : /* Return DIE at given offset in .debug_info section.  */
     329                 :            : extern Dwarf_Die *dwarf_offdie (Dwarf *dbg, Dwarf_Off offset,
     330                 :            :                                 Dwarf_Die *result) __nonnull_attribute__ (3);
     331                 :            : 
     332                 :            : /* Return DIE at given offset in .debug_types section.  */
     333                 :            : extern Dwarf_Die *dwarf_offdie_types (Dwarf *dbg, Dwarf_Off offset,
     334                 :            :                                       Dwarf_Die *result)
     335                 :            :      __nonnull_attribute__ (3);
     336                 :            : 
     337                 :            : /* Return offset of DIE.  */
     338                 :            : extern Dwarf_Off dwarf_dieoffset (Dwarf_Die *die);
     339                 :            : 
     340                 :            : /* Return offset of DIE in CU.  */
     341                 :            : extern Dwarf_Off dwarf_cuoffset (Dwarf_Die *die);
     342                 :            : 
     343                 :            : /* Return CU DIE containing given DIE.  */
     344                 :            : extern Dwarf_Die *dwarf_diecu (Dwarf_Die *die, Dwarf_Die *result,
     345                 :            :                                uint8_t *address_sizep, uint8_t *offset_sizep)
     346                 :            :      __nonnull_attribute__ (2);
     347                 :            : 
     348                 :            : /* Return CU DIE containing given address.  */
     349                 :            : extern Dwarf_Die *dwarf_addrdie (Dwarf *dbg, Dwarf_Addr addr,
     350                 :            :                                  Dwarf_Die *result) __nonnull_attribute__ (3);
     351                 :            : 
     352                 :            : /* Return child of current DIE.  */
     353                 :            : extern int dwarf_child (Dwarf_Die *die, Dwarf_Die *result)
     354                 :            :      __nonnull_attribute__ (2);
     355                 :            : 
     356                 :            : /* Locates the first sibling of DIE and places it in RESULT.
     357                 :            :    Returns 0 if a sibling was found, -1 if something went wrong.
     358                 :            :    Returns 1 if no sibling could be found and, if RESULT is not
     359                 :            :    the same as DIE, it sets RESULT->addr to the address of the
     360                 :            :    (non-sibling) DIE that follows this one, or NULL if this DIE
     361                 :            :    was the last one in the compilation unit.  */
     362                 :            : extern int dwarf_siblingof (Dwarf_Die *die, Dwarf_Die *result)
     363                 :            :      __nonnull_attribute__ (2);
     364                 :            : 
     365                 :            : /* Check whether the DIE has children.  */
     366                 :            : extern int dwarf_haschildren (Dwarf_Die *die) __nonnull_attribute__ (1);
     367                 :            : 
     368                 :            : /* Walks the attributes of DIE, starting at the one OFFSET bytes in,
     369                 :            :    calling the CALLBACK function for each one.  Stops if the callback
     370                 :            :    function ever returns a value other than DWARF_CB_OK and returns the
     371                 :            :    offset of the offending attribute.  If the end of the attributes
     372                 :            :    is reached 1 is returned.  If something goes wrong -1 is returned and
     373                 :            :    the dwarf error number is set.  */
     374                 :            : extern ptrdiff_t dwarf_getattrs (Dwarf_Die *die,
     375                 :            :                                  int (*callback) (Dwarf_Attribute *, void *),
     376                 :            :                                  void *arg, ptrdiff_t offset)
     377                 :            :      __nonnull_attribute__ (2);
     378                 :            : 
     379                 :            : /* Return tag of given DIE.  */
     380                 :            : extern int dwarf_tag (Dwarf_Die *die) __nonnull_attribute__ (1);
     381                 :            : 
     382                 :            : 
     383                 :            : /* Return specific attribute of DIE.  */
     384                 :            : extern Dwarf_Attribute *dwarf_attr (Dwarf_Die *die, unsigned int search_name,
     385                 :            :                                     Dwarf_Attribute *result)
     386                 :            :      __nonnull_attribute__ (3);
     387                 :            : 
     388                 :            : /* Check whether given DIE has specific attribute.  */
     389                 :            : extern int dwarf_hasattr (Dwarf_Die *die, unsigned int search_name);
     390                 :            : 
     391                 :            : /* These are the same as dwarf_attr and dwarf_hasattr, respectively,
     392                 :            :    but they resolve an indirect attribute through DW_AT_abstract_origin.  */
     393                 :            : extern Dwarf_Attribute *dwarf_attr_integrate (Dwarf_Die *die,
     394                 :            :                                               unsigned int search_name,
     395                 :            :                                               Dwarf_Attribute *result)
     396                 :            :      __nonnull_attribute__ (3);
     397                 :            : extern int dwarf_hasattr_integrate (Dwarf_Die *die, unsigned int search_name);
     398                 :            : 
     399                 :            : 
     400                 :            : 
     401                 :            : 
     402                 :            : /* Check whether given attribute has specific form.  */
     403                 :            : extern int dwarf_hasform (Dwarf_Attribute *attr, unsigned int search_form);
     404                 :            : 
     405                 :            : /* Return attribute code of given attribute.  */
     406                 :            : extern unsigned int dwarf_whatattr (Dwarf_Attribute *attr);
     407                 :            : 
     408                 :            : /* Return form code of given attribute.  */
     409                 :            : extern unsigned int dwarf_whatform (Dwarf_Attribute *attr);
     410                 :            : 
     411                 :            : 
     412                 :            : /* Return string associated with given attribute.  */
     413                 :            : extern const char *dwarf_formstring (Dwarf_Attribute *attrp);
     414                 :            : 
     415                 :            : /* Return unsigned constant represented by attribute.  */
     416                 :            : extern int dwarf_formudata (Dwarf_Attribute *attr, Dwarf_Word *return_uval)
     417                 :            :      __nonnull_attribute__ (2);
     418                 :            : 
     419                 :            : /* Return signed constant represented by attribute.  */
     420                 :            : extern int dwarf_formsdata (Dwarf_Attribute *attr, Dwarf_Sword *return_uval)
     421                 :            :      __nonnull_attribute__ (2);
     422                 :            : 
     423                 :            : /* Return address represented by attribute.  */
     424                 :            : extern int dwarf_formaddr (Dwarf_Attribute *attr, Dwarf_Addr *return_addr)
     425                 :            :      __nonnull_attribute__ (2);
     426                 :            : 
     427                 :            : /* This function is deprecated.  Always use dwarf_formref_die instead.
     428                 :            :    Return reference offset represented by attribute.  */
     429                 :            : extern int dwarf_formref (Dwarf_Attribute *attr, Dwarf_Off *return_offset)
     430                 :            :      __nonnull_attribute__ (2) __deprecated_attribute__;
     431                 :            : 
     432                 :            : /* Look up the DIE in a reference-form attribute.  */
     433                 :            : extern Dwarf_Die *dwarf_formref_die (Dwarf_Attribute *attr, Dwarf_Die *die_mem)
     434                 :            :      __nonnull_attribute__ (2);
     435                 :            : 
     436                 :            : /* Return block represented by attribute.  */
     437                 :            : extern int dwarf_formblock (Dwarf_Attribute *attr, Dwarf_Block *return_block)
     438                 :            :      __nonnull_attribute__ (2);
     439                 :            : 
     440                 :            : /* Return flag represented by attribute.  */
     441                 :            : extern int dwarf_formflag (Dwarf_Attribute *attr, bool *return_bool)
     442                 :            :      __nonnull_attribute__ (2);
     443                 :            : 
     444                 :            : 
     445                 :            : /* Simplified attribute value access functions.  */
     446                 :            : 
     447                 :            : /* Return string in name attribute of DIE.  */
     448                 :            : extern const char *dwarf_diename (Dwarf_Die *die);
     449                 :            : 
     450                 :            : /* Return high PC attribute of DIE.  */
     451                 :            : extern int dwarf_highpc (Dwarf_Die *die, Dwarf_Addr *return_addr)
     452                 :            :      __nonnull_attribute__ (2);
     453                 :            : 
     454                 :            : /* Return low PC attribute of DIE.  */
     455                 :            : extern int dwarf_lowpc (Dwarf_Die *die, Dwarf_Addr *return_addr)
     456                 :            :      __nonnull_attribute__ (2);
     457                 :            : 
     458                 :            : /* Return entry_pc or low_pc attribute of DIE.  */
     459                 :            : extern int dwarf_entrypc (Dwarf_Die *die, Dwarf_Addr *return_addr)
     460                 :            :      __nonnull_attribute__ (2);
     461                 :            : 
     462                 :            : /* Return 1 if DIE's lowpc/highpc or ranges attributes match the PC address,
     463                 :            :    0 if not, or -1 for errors.  */
     464                 :            : extern int dwarf_haspc (Dwarf_Die *die, Dwarf_Addr pc);
     465                 :            : 
     466                 :            : /* Enumerate the PC address ranges covered by this DIE, covering all
     467                 :            :    addresses where dwarf_haspc returns true.  In the first call OFFSET
     468                 :            :    should be zero and *BASEP need not be initialized.  Returns -1 for
     469                 :            :    errors, zero when there are no more address ranges to report, or a
     470                 :            :    nonzero OFFSET value to pass to the next call.  Each subsequent call
     471                 :            :    must preserve *BASEP from the prior call.  Successful calls fill in
     472                 :            :    *STARTP and *ENDP with a contiguous address range.  */
     473                 :            : extern ptrdiff_t dwarf_ranges (Dwarf_Die *die,
     474                 :            :                                ptrdiff_t offset, Dwarf_Addr *basep,
     475                 :            :                                Dwarf_Addr *startp, Dwarf_Addr *endp);
     476                 :            : 
     477                 :            : 
     478                 :            : /* Return byte size attribute of DIE.  */
     479                 :            : extern int dwarf_bytesize (Dwarf_Die *die);
     480                 :            : 
     481                 :            : /* Return bit size attribute of DIE.  */
     482                 :            : extern int dwarf_bitsize (Dwarf_Die *die);
     483                 :            : 
     484                 :            : /* Return bit offset attribute of DIE.  */
     485                 :            : extern int dwarf_bitoffset (Dwarf_Die *die);
     486                 :            : 
     487                 :            : /* Return array order attribute of DIE.  */
     488                 :            : extern int dwarf_arrayorder (Dwarf_Die *die);
     489                 :            : 
     490                 :            : /* Return source language attribute of DIE.  */
     491                 :            : extern int dwarf_srclang (Dwarf_Die *die);
     492                 :            : 
     493                 :            : 
     494                 :            : /* Get abbreviation at given offset for given DIE.  */
     495                 :            : extern Dwarf_Abbrev *dwarf_getabbrev (Dwarf_Die *die, Dwarf_Off offset,
     496                 :            :                                       size_t *lengthp);
     497                 :            : 
     498                 :            : /* Get abbreviation at given offset in .debug_abbrev section.  */
     499                 :            : extern int dwarf_offabbrev (Dwarf *dbg, Dwarf_Off offset, size_t *lengthp,
     500                 :            :                             Dwarf_Abbrev *abbrevp)
     501                 :            :      __nonnull_attribute__ (4);
     502                 :            : 
     503                 :            : /* Get abbreviation code.  */
     504                 :            : extern unsigned int dwarf_getabbrevcode (Dwarf_Abbrev *abbrev);
     505                 :            : 
     506                 :            : /* Get abbreviation tag.  */
     507                 :            : extern unsigned int dwarf_getabbrevtag (Dwarf_Abbrev *abbrev);
     508                 :            : 
     509                 :            : /* Return true if abbreviation is children flag set.  */
     510                 :            : extern int dwarf_abbrevhaschildren (Dwarf_Abbrev *abbrev);
     511                 :            : 
     512                 :            : /* Get number of attributes of abbreviation.  */
     513                 :            : extern int dwarf_getattrcnt (Dwarf_Abbrev *abbrev, size_t *attrcntp)
     514                 :            :      __nonnull_attribute__ (2);
     515                 :            : 
     516                 :            : /* Get specific attribute of abbreviation.  */
     517                 :            : extern int dwarf_getabbrevattr (Dwarf_Abbrev *abbrev, size_t idx,
     518                 :            :                                 unsigned int *namep, unsigned int *formp,
     519                 :            :                                 Dwarf_Off *offset);
     520                 :            : 
     521                 :            : 
     522                 :            : /* Get string from-debug_str section.  */
     523                 :            : extern const char *dwarf_getstring (Dwarf *dbg, Dwarf_Off offset,
     524                 :            :                                     size_t *lenp);
     525                 :            : 
     526                 :            : 
     527                 :            : /* Get public symbol information.  */
     528                 :            : extern ptrdiff_t dwarf_getpubnames (Dwarf *dbg,
     529                 :            :                                     int (*callback) (Dwarf *, Dwarf_Global *,
     530                 :            :                                                      void *),
     531                 :            :                                     void *arg, ptrdiff_t offset)
     532                 :            :      __nonnull_attribute__ (2);
     533                 :            : 
     534                 :            : 
     535                 :            : /* Get source file information for CU.  */
     536                 :            : extern int dwarf_getsrclines (Dwarf_Die *cudie, Dwarf_Lines **lines,
     537                 :            :                               size_t *nlines) __nonnull_attribute__ (2, 3);
     538                 :            : 
     539                 :            : /* Return one of the source lines of the CU.  */
     540                 :            : extern Dwarf_Line *dwarf_onesrcline (Dwarf_Lines *lines, size_t idx);
     541                 :            : 
     542                 :            : /* Get the file source files used in the CU.  */
     543                 :            : extern int dwarf_getsrcfiles (Dwarf_Die *cudie, Dwarf_Files **files,
     544                 :            :                               size_t *nfiles)
     545                 :            :      __nonnull_attribute__ (2);
     546                 :            : 
     547                 :            : 
     548                 :            : /* Get source for address in CU.  */
     549                 :            : extern Dwarf_Line *dwarf_getsrc_die (Dwarf_Die *cudie, Dwarf_Addr addr);
     550                 :            : 
     551                 :            : /* Get source for file and line number.  */
     552                 :            : extern int dwarf_getsrc_file (Dwarf *dbg, const char *fname, int line, int col,
     553                 :            :                               Dwarf_Line ***srcsp, size_t *nsrcs)
     554                 :            :      __nonnull_attribute__ (2, 5, 6);
     555                 :            : 
     556                 :            : 
     557                 :            : /* Return line address.  */
     558                 :            : extern int dwarf_lineaddr (Dwarf_Line *line, Dwarf_Addr *addrp);
     559                 :            : 
     560                 :            : /* Return line VLIW operation index.  */
     561                 :            : extern int dwarf_lineop_index (Dwarf_Line *line, unsigned int *op_indexp);
     562                 :            : 
     563                 :            : /* Return line number.  */
     564                 :            : extern int dwarf_lineno (Dwarf_Line *line, int *linep)
     565                 :            :      __nonnull_attribute__ (2);
     566                 :            : 
     567                 :            : /* Return column in line.  */
     568                 :            : extern int dwarf_linecol (Dwarf_Line *line, int *colp)
     569                 :            :      __nonnull_attribute__ (2);
     570                 :            : 
     571                 :            : /* Return true if record is for beginning of a statement.  */
     572                 :            : extern int dwarf_linebeginstatement (Dwarf_Line *line, bool *flagp)
     573                 :            :      __nonnull_attribute__ (2);
     574                 :            : 
     575                 :            : /* Return true if record is for end of sequence.  */
     576                 :            : extern int dwarf_lineendsequence (Dwarf_Line *line, bool *flagp)
     577                 :            :      __nonnull_attribute__ (2);
     578                 :            : 
     579                 :            : /* Return true if record is for beginning of a basic block.  */
     580                 :            : extern int dwarf_lineblock (Dwarf_Line *line, bool *flagp)
     581                 :            :      __nonnull_attribute__ (2);
     582                 :            : 
     583                 :            : /* Return true if record is for end of prologue.  */
     584                 :            : extern int dwarf_lineprologueend (Dwarf_Line *line, bool *flagp)
     585                 :            :      __nonnull_attribute__ (2);
     586                 :            : 
     587                 :            : /* Return true if record is for beginning of epilogue.  */
     588                 :            : extern int dwarf_lineepiloguebegin (Dwarf_Line *line, bool *flagp)
     589                 :            :      __nonnull_attribute__ (2);
     590                 :            : 
     591                 :            : /* Return instruction-set architecture in this record.  */
     592                 :            : extern int dwarf_lineisa (Dwarf_Line *line, unsigned int *isap)
     593                 :            :      __nonnull_attribute__ (2);
     594                 :            : 
     595                 :            : /* Return code path discriminator in this record.  */
     596                 :            : extern int dwarf_linediscriminator (Dwarf_Line *line, unsigned int *discp)
     597                 :            :      __nonnull_attribute__ (2);
     598                 :            : 
     599                 :            : 
     600                 :            : /* Find line information for address.  */
     601                 :            : extern const char *dwarf_linesrc (Dwarf_Line *line,
     602                 :            :                                   Dwarf_Word *mtime, Dwarf_Word *length);
     603                 :            : 
     604                 :            : /* Return file information.  */
     605                 :            : extern const char *dwarf_filesrc (Dwarf_Files *file, size_t idx,
     606                 :            :                                   Dwarf_Word *mtime, Dwarf_Word *length);
     607                 :            : 
     608                 :            : /* Return the directory list used in the file information extracted.
     609                 :            :    (*RESULT)[0] is the CU's DW_AT_comp_dir value, and may be null.
     610                 :            :    (*RESULT)[0..*NDIRS-1] are the compile-time include directory path
     611                 :            :    encoded by the compiler.  */
     612                 :            : extern int dwarf_getsrcdirs (Dwarf_Files *files,
     613                 :            :                              const char *const **result, size_t *ndirs)
     614                 :            :   __nonnull_attribute__ (2, 3);
     615                 :            : 
     616                 :            : 
     617                 :            : /* Return location expression, decoded as a list of operations.  */
     618                 :            : extern int dwarf_getlocation (Dwarf_Attribute *attr, Dwarf_Op **expr,
     619                 :            :                               size_t *exprlen) __nonnull_attribute__ (2, 3);
     620                 :            : 
     621                 :            : /* Return location expressions.  If the attribute uses a location list,
     622                 :            :    ADDRESS selects the relevant location expressions from the list.
     623                 :            :    There can be multiple matches, resulting in multiple expressions to
     624                 :            :    return.  EXPRS and EXPRLENS are parallel arrays of NLOCS slots to
     625                 :            :    fill in.  Returns the number of locations filled in, or -1 for
     626                 :            :    errors.  If EXPRS is a null pointer, stores nothing and returns the
     627                 :            :    total number of locations.  A return value of zero means that the
     628                 :            :    location list indicated no value is accessible.  */
     629                 :            : extern int dwarf_getlocation_addr (Dwarf_Attribute *attr, Dwarf_Addr address,
     630                 :            :                                    Dwarf_Op **exprs, size_t *exprlens,
     631                 :            :                                    size_t nlocs);
     632                 :            : 
     633                 :            : /* Return the block associated with a DW_OP_implicit_value operation.
     634                 :            :    The OP pointer must point into an expression that dwarf_getlocation
     635                 :            :    or dwarf_getlocation_addr has returned given the same ATTR.  */
     636                 :            : extern int dwarf_getlocation_implicit_value (Dwarf_Attribute *attr,
     637                 :            :                                              const Dwarf_Op *op,
     638                 :            :                                              Dwarf_Block *return_block)
     639                 :            :   __nonnull_attribute__ (2, 3);
     640                 :            : 
     641                 :            : /* Return the attribute indicated by a DW_OP_GNU_implicit_pointer operation.
     642                 :            :    The OP pointer must point into an expression that dwarf_getlocation
     643                 :            :    or dwarf_getlocation_addr has returned given the same ATTR.
     644                 :            :    The result is the DW_AT_location or DW_AT_const_value attribute
     645                 :            :    of the OP->number DIE.  */
     646                 :            : extern int dwarf_getlocation_implicit_pointer (Dwarf_Attribute *attr,
     647                 :            :                                                const Dwarf_Op *op,
     648                 :            :                                                Dwarf_Attribute *result)
     649                 :            :   __nonnull_attribute__ (2, 3);
     650                 :            : 
     651                 :            : 
     652                 :            : /* Compute the byte-size of a type DIE according to DWARF rules.
     653                 :            :    For most types, this is just DW_AT_byte_size.
     654                 :            :    For DW_TAG_array_type it can apply much more complex rules.  */
     655                 :            : extern int dwarf_aggregate_size (Dwarf_Die *die, Dwarf_Word *size);
     656                 :            : 
     657                 :            : 
     658                 :            : /* Return scope DIEs containing PC address.
     659                 :            :    Sets *SCOPES to a malloc'd array of Dwarf_Die structures,
     660                 :            :    and returns the number of elements in the array.
     661                 :            :    (*SCOPES)[0] is the DIE for the innermost scope containing PC,
     662                 :            :    (*SCOPES)[1] is the DIE for the scope containing that scope, and so on.
     663                 :            :    Returns -1 for errors or 0 if no scopes match PC.  */
     664                 :            : extern int dwarf_getscopes (Dwarf_Die *cudie, Dwarf_Addr pc,
     665                 :            :                             Dwarf_Die **scopes);
     666                 :            : 
     667                 :            : /* Return scope DIEs containing the given DIE.
     668                 :            :    Sets *SCOPES to a malloc'd array of Dwarf_Die structures,
     669                 :            :    and returns the number of elements in the array.
     670                 :            :    (*SCOPES)[0] is a copy of DIE.
     671                 :            :    (*SCOPES)[1] is the DIE for the scope containing that scope, and so on.
     672                 :            :    Returns -1 for errors or 0 if DIE is not found in any scope entry.  */
     673                 :            : extern int dwarf_getscopes_die (Dwarf_Die *die, Dwarf_Die **scopes);
     674                 :            : 
     675                 :            : 
     676                 :            : /* Search SCOPES[0..NSCOPES-1] for a variable called NAME.
     677                 :            :    Ignore the first SKIP_SHADOWS scopes that match the name.
     678                 :            :    If MATCH_FILE is not null, accept only declaration in that source file;
     679                 :            :    if MATCH_LINENO or MATCH_LINECOL are also nonzero, accept only declaration
     680                 :            :    at that line and column.
     681                 :            : 
     682                 :            :    If successful, fill in *RESULT with the DIE of the variable found,
     683                 :            :    and return N where SCOPES[N] is the scope defining the variable.
     684                 :            :    Return -1 for errors or -2 for no matching variable found.  */
     685                 :            : extern int dwarf_getscopevar (Dwarf_Die *scopes, int nscopes,
     686                 :            :                               const char *name, int skip_shadows,
     687                 :            :                               const char *match_file,
     688                 :            :                               int match_lineno, int match_linecol,
     689                 :            :                               Dwarf_Die *result);
     690                 :            : 
     691                 :            : 
     692                 :            : 
     693                 :            : /* Return list address ranges.  */
     694                 :            : extern int dwarf_getaranges (Dwarf *dbg, Dwarf_Aranges **aranges,
     695                 :            :                              size_t *naranges)
     696                 :            :      __nonnull_attribute__ (2);
     697                 :            : 
     698                 :            : /* Return one of the address range entries.  */
     699                 :            : extern Dwarf_Arange *dwarf_onearange (Dwarf_Aranges *aranges, size_t idx);
     700                 :            : 
     701                 :            : /* Return information in address range record.  */
     702                 :            : extern int dwarf_getarangeinfo (Dwarf_Arange *arange, Dwarf_Addr *addrp,
     703                 :            :                                 Dwarf_Word *lengthp, Dwarf_Off *offsetp);
     704                 :            : 
     705                 :            : /* Get address range which includes given address.  */
     706                 :            : extern Dwarf_Arange *dwarf_getarange_addr (Dwarf_Aranges *aranges,
     707                 :            :                                            Dwarf_Addr addr);
     708                 :            : 
     709                 :            : 
     710                 :            : 
     711                 :            : /* Get functions in CUDIE.  */
     712                 :            : extern ptrdiff_t dwarf_getfuncs (Dwarf_Die *cudie,
     713                 :            :                                  int (*callback) (Dwarf_Die *, void *),
     714                 :            :                                  void *arg, ptrdiff_t offset);
     715                 :            : 
     716                 :            : 
     717                 :            : /* Return file name containing definition of the given declaration.  */
     718                 :            : extern const char *dwarf_decl_file (Dwarf_Die *decl);
     719                 :            : 
     720                 :            : /* Get line number of beginning of given declaration.  */
     721                 :            : extern int dwarf_decl_line (Dwarf_Die *decl, int *linep)
     722                 :            :      __nonnull_attribute__ (2);
     723                 :            : 
     724                 :            : /* Get column number of beginning of given declaration.  */
     725                 :            : extern int dwarf_decl_column (Dwarf_Die *decl, int *colp)
     726                 :            :      __nonnull_attribute__ (2);
     727                 :            : 
     728                 :            : 
     729                 :            : /* Return nonzero if given function is an abstract inline definition.  */
     730                 :            : extern int dwarf_func_inline (Dwarf_Die *func);
     731                 :            : 
     732                 :            : /* Find each concrete inlined instance of the abstract inline definition.  */
     733                 :            : extern int dwarf_func_inline_instances (Dwarf_Die *func,
     734                 :            :                                         int (*callback) (Dwarf_Die *, void *),
     735                 :            :                                         void *arg);
     736                 :            : 
     737                 :            : 
     738                 :            : /* Find the appropriate PC location or locations for function entry
     739                 :            :    breakpoints for the given DW_TAG_subprogram DIE.  Returns -1 for errors.
     740                 :            :    On success, returns the number of breakpoint locations (never zero)
     741                 :            :    and sets *BKPTS to a malloc'd vector of addresses.  */
     742                 :            : extern int dwarf_entry_breakpoints (Dwarf_Die *die, Dwarf_Addr **bkpts);
     743                 :            : 
     744                 :            : 
     745                 :            : /* Call callback function for each of the macro information entry for
     746                 :            :    the CU.  */
     747                 :            : extern ptrdiff_t dwarf_getmacros (Dwarf_Die *cudie,
     748                 :            :                                   int (*callback) (Dwarf_Macro *, void *),
     749                 :            :                                   void *arg, ptrdiff_t offset)
     750                 :            :      __nonnull_attribute__ (2);
     751                 :            : 
     752                 :            : /* Return macro opcode.  */
     753                 :            : extern int dwarf_macro_opcode (Dwarf_Macro *macro, unsigned int *opcodep)
     754                 :            :      __nonnull_attribute__ (2);
     755                 :            : 
     756                 :            : /* Return first macro parameter.  */
     757                 :            : extern int dwarf_macro_param1 (Dwarf_Macro *macro, Dwarf_Word *paramp)
     758                 :            :      __nonnull_attribute__ (2);
     759                 :            : 
     760                 :            : /* Return second macro parameter.  */
     761                 :            : extern int dwarf_macro_param2 (Dwarf_Macro *macro, Dwarf_Word *paramp,
     762                 :            :                                const char **strp);
     763                 :            : 
     764                 :            : 
     765                 :            : /* Compute what's known about a call frame when the PC is at ADDRESS.
     766                 :            :    Returns 0 for success or -1 for errors.
     767                 :            :    On success, *FRAME is a malloc'd pointer.  */
     768                 :            : extern int dwarf_cfi_addrframe (Dwarf_CFI *cache,
     769                 :            :                                 Dwarf_Addr address, Dwarf_Frame **frame)
     770                 :            :   __nonnull_attribute__ (3);
     771                 :            : 
     772                 :            : /* Return the DWARF register number used in FRAME to denote
     773                 :            :    the return address in FRAME's caller frame.  The remaining
     774                 :            :    arguments can be non-null to fill in more information.
     775                 :            : 
     776                 :            :    Fill [*START, *END) with the PC range to which FRAME's information applies.
     777                 :            :    Fill in *SIGNALP to indicate whether this is a signal-handling frame.
     778                 :            :    If true, this is the implicit call frame that calls a signal handler.
     779                 :            :    This frame's "caller" is actually the interrupted state, not a call;
     780                 :            :    its return address is an exact PC, not a PC after a call instruction.  */
     781                 :            : extern int dwarf_frame_info (Dwarf_Frame *frame,
     782                 :            :                              Dwarf_Addr *start, Dwarf_Addr *end, bool *signalp);
     783                 :            : 
     784                 :            : /* Return a DWARF expression that yields the Canonical Frame Address at
     785                 :            :    this frame state.  Returns -1 for errors, or zero for success, with
     786                 :            :    *NOPS set to the number of operations stored at *OPS.  That pointer
     787                 :            :    can be used only as long as FRAME is alive and unchanged.  *NOPS is
     788                 :            :    zero if the CFA cannot be determined here.  Note that if nonempty,
     789                 :            :    *OPS is a DWARF expression, not a location description--append
     790                 :            :    DW_OP_stack_value to a get a location description for the CFA.  */
     791                 :            : extern int dwarf_frame_cfa (Dwarf_Frame *frame, Dwarf_Op **ops, size_t *nops)
     792                 :            :   __nonnull_attribute__ (2);
     793                 :            : 
     794                 :            : /* Deliver a DWARF location description that yields the location or
     795                 :            :    value of DWARF register number REGNO in the state described by FRAME.
     796                 :            : 
     797                 :            :    Returns -1 for errors or zero for success, setting *NOPS to the
     798                 :            :    number of operations in the array stored at *OPS.  Note the last
     799                 :            :    operation is DW_OP_stack_value if there is no mutable location but
     800                 :            :    only a computable value.
     801                 :            : 
     802                 :            :    *NOPS zero with *OPS set to OPS_MEM means CFI says the caller's
     803                 :            :    REGNO is "undefined", i.e. it's call-clobbered and cannot be recovered.
     804                 :            : 
     805                 :            :    *NOPS zero with *OPS set to a null pointer means CFI says the
     806                 :            :    caller's REGNO is "same_value", i.e. this frame did not change it;
     807                 :            :    ask the caller frame where to find it.
     808                 :            : 
     809                 :            :    For common simple expressions *OPS is OPS_MEM.  For arbitrary DWARF
     810                 :            :    expressions in the CFI, *OPS is an internal pointer that can be used as
     811                 :            :    long as the Dwarf_CFI used to create FRAME remains alive.  */
     812                 :            : extern int dwarf_frame_register (Dwarf_Frame *frame, int regno,
     813                 :            :                                  Dwarf_Op ops_mem[3],
     814                 :            :                                  Dwarf_Op **ops, size_t *nops)
     815                 :            :   __nonnull_attribute__ (3, 4, 5);
     816                 :            : 
     817                 :            : 
     818                 :            : /* Return error code of last failing function call.  This value is kept
     819                 :            :    separately for each thread.  */
     820                 :            : extern int dwarf_errno (void);
     821                 :            : 
     822                 :            : /* Return error string for ERROR.  If ERROR is zero, return error string
     823                 :            :    for most recent error or NULL is none occurred.  If ERROR is -1 the
     824                 :            :    behaviour is similar to the last case except that not NULL but a legal
     825                 :            :    string is returned.  */
     826                 :            : extern const char *dwarf_errmsg (int err);
     827                 :            : 
     828                 :            : 
     829                 :            : /* Register new Out-Of-Memory handler.  The old handler is returned.  */
     830                 :            : extern Dwarf_OOM dwarf_new_oom_handler (Dwarf *dbg, Dwarf_OOM handler);
     831                 :            : 
     832                 :            : 
     833                 :            : /* Inline optimizations.  */
     834                 :            : #ifdef __OPTIMIZE__
     835                 :            : /* Return attribute code of given attribute.  */
     836                 :            : __libdw_extern_inline unsigned int
     837                 :            : dwarf_whatattr (Dwarf_Attribute *attr)
     838                 :            : {
     839         [ +  - ]:    2547885 :   return attr == NULL ? 0 : attr->code;
     840                 :            : }
     841                 :            : 
     842                 :            : /* Return attribute code of given attribute.  */
     843                 :            : __libdw_extern_inline unsigned int
     844                 :            : dwarf_whatform (Dwarf_Attribute *attr)
     845                 :            : {
     846         [ +  - ]:    2547885 :   return attr == NULL ? 0 : attr->form;
     847                 :            : }
     848                 :            : #endif  /* Optimize.  */
     849                 :            : 
     850                 :            : #ifdef __cplusplus
     851                 :            : }
     852                 :            : #endif
     853                 :            : 
     854                 :            : #endif  /* libdw.h */

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