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575 lines
25 KiB
C
575 lines
25 KiB
C
/* Public API to libctf.
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Copyright (C) 2019-2022 Free Software Foundation, Inc.
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This file is part of libctf.
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libctf is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not see
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<http://www.gnu.org/licenses/>. */
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/* This header file defines the interfaces available from the CTF debugger
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library, libctf. This API can be used by a debugger to operate on data in
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the Compact ANSI-C Type Format (CTF). */
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#ifndef _CTF_API_H
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#define _CTF_API_H
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#include <sys/types.h>
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#include <ctf.h>
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#include <zlib.h>
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/* Clients can open one or more CTF containers and obtain a pointer to an
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opaque ctf_dict_t. Types are identified by an opaque ctf_id_t token.
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They can also open or create read-only archives of CTF containers in a
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ctf_archive_t.
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These opaque definitions allow libctf to evolve without breaking clients. */
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typedef struct ctf_dict ctf_dict_t;
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typedef struct ctf_archive_internal ctf_archive_t;
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typedef unsigned long ctf_id_t;
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/* This opaque definition allows libctf to accept BFD data structures without
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importing all the BFD noise into users' namespaces. */
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struct bfd;
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/* If the debugger needs to provide the CTF library with a set of raw buffers
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for use as the CTF data, symbol table, and string table, it can do so by
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filling in ctf_sect_t structures and passing them to ctf_bufopen.
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The contents of this structure must always be in native endianness. At read
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time, the symbol table endianness is derived from the BFD target (if BFD is
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in use): if a BFD target is not in use, please call ctf_symsect_endianness or
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ctf_arc_symsect_endianness. */
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typedef struct ctf_sect
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{
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const char *cts_name; /* Section name (if any). */
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const void *cts_data; /* Pointer to section data. */
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size_t cts_size; /* Size of data in bytes. */
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size_t cts_entsize; /* Size of each section entry (symtab only). */
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} ctf_sect_t;
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/* A minimal symbol extracted from a linker's internal symbol table
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representation. The symbol name can be given either via st_name or via a
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strtab offset in st_nameidx, which corresponds to one of the string offsets
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communicated via the ctf_link_add_strtab callback. */
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typedef struct ctf_link_sym
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{
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/* The st_name and st_nameidx will not be accessed outside the call to
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ctf_link_shuffle_syms. If you set st_nameidx to offset zero, make sure
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to set st_nameidx_set as well. */
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const char *st_name;
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size_t st_nameidx;
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int st_nameidx_set;
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uint32_t st_symidx;
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uint32_t st_shndx;
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uint32_t st_type;
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uint32_t st_value;
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} ctf_link_sym_t;
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/* Flags applying to this specific link. */
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/* Share all types that are not in conflict. The default. */
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#define CTF_LINK_SHARE_UNCONFLICTED 0x0
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/* Share only types that are used by multiple inputs. */
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#define CTF_LINK_SHARE_DUPLICATED 0x1
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/* Do a nondeduplicating link, or otherwise deduplicate "less hard", trading off
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CTF output size for link time. */
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#define CTF_LINK_NONDEDUP 0x2
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/* Create empty outputs for all registered CU mappings even if no types are
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emitted into them. */
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#define CTF_LINK_EMPTY_CU_MAPPINGS 0x4
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/* Omit the content of the variables section. */
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#define CTF_LINK_OMIT_VARIABLES_SECTION 0x8
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/* If *unset*, filter out entries corresponding to linker-reported symbols
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from the variable section, and filter out all entries with no linker-reported
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symbols from the data object and function info sections: if set, do no
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filtering and leave all entries in place. (This is a negative-sense flag
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because it is rare to want symbols the linker has not reported as present to
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stick around in the symtypetab sections nonetheless: relocatable links are
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the only likely case.) */
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#define CTF_LINK_NO_FILTER_REPORTED_SYMS 0x10
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/* Symbolic names for CTF sections. */
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typedef enum ctf_sect_names
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{
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CTF_SECT_HEADER,
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CTF_SECT_LABEL,
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CTF_SECT_OBJT,
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CTF_SECT_OBJTIDX = CTF_SECT_OBJT,
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CTF_SECT_FUNC,
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CTF_SECT_FUNCIDX = CTF_SECT_FUNC,
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CTF_SECT_VAR,
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CTF_SECT_TYPE,
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CTF_SECT_STR
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} ctf_sect_names_t;
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/* Encoding information for integers, floating-point values, and certain other
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intrinsics can be obtained by calling ctf_type_encoding, below. The flags
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field will contain values appropriate for the type defined in <ctf.h>. */
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typedef struct ctf_encoding
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{
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uint32_t cte_format; /* Data format (CTF_INT_* or CTF_FP_* flags). */
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uint32_t cte_offset; /* Offset of value in bits. */
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uint32_t cte_bits; /* Size of storage in bits. */
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} ctf_encoding_t;
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typedef struct ctf_membinfo
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{
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ctf_id_t ctm_type; /* Type of struct or union member. */
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unsigned long ctm_offset; /* Offset of member in bits. */
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} ctf_membinfo_t;
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typedef struct ctf_arinfo
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{
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ctf_id_t ctr_contents; /* Type of array contents. */
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ctf_id_t ctr_index; /* Type of array index. */
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uint32_t ctr_nelems; /* Number of elements. */
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} ctf_arinfo_t;
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typedef struct ctf_funcinfo
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{
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ctf_id_t ctc_return; /* Function return type. */
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uint32_t ctc_argc; /* Number of typed arguments to function. */
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uint32_t ctc_flags; /* Function attributes (see below). */
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} ctf_funcinfo_t;
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typedef struct ctf_lblinfo
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{
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ctf_id_t ctb_type; /* Last type associated with the label. */
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} ctf_lblinfo_t;
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typedef struct ctf_snapshot_id
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{
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unsigned long dtd_id; /* Highest DTD ID at time of snapshot. */
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unsigned long snapshot_id; /* Snapshot id at time of snapshot. */
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} ctf_snapshot_id_t;
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#define CTF_FUNC_VARARG 0x1 /* Function arguments end with varargs. */
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/* Functions that return a ctf_id_t use the following value to indicate failure.
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ctf_errno can be used to obtain an error code. Functions that return
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a straight integral -1 also use ctf_errno. */
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#define CTF_ERR ((ctf_id_t) -1L)
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/* This macro holds information about all the available ctf errors.
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It is used to form both an enum holding all the error constants,
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and also the error strings themselves. To use, define _CTF_FIRST
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and _CTF_ITEM to expand as you like, then mention the macro name.
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See the enum after this for an example. */
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#define _CTF_ERRORS \
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_CTF_FIRST (ECTF_FMT, "File is not in CTF or ELF format.") \
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_CTF_ITEM (ECTF_BFDERR, "BFD error.") \
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_CTF_ITEM (ECTF_CTFVERS, "CTF dict version is too new for libctf.") \
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_CTF_ITEM (ECTF_BFD_AMBIGUOUS, "Ambiguous BFD target.") \
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_CTF_ITEM (ECTF_SYMTAB, "Symbol table uses invalid entry size.") \
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_CTF_ITEM (ECTF_SYMBAD, "Symbol table data buffer is not valid.") \
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_CTF_ITEM (ECTF_STRBAD, "String table data buffer is not valid.") \
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_CTF_ITEM (ECTF_CORRUPT, "File data structure corruption detected.") \
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_CTF_ITEM (ECTF_NOCTFDATA, "File does not contain CTF data.") \
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_CTF_ITEM (ECTF_NOCTFBUF, "Buffer does not contain CTF data.") \
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_CTF_ITEM (ECTF_NOSYMTAB, "Symbol table information is not available.") \
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_CTF_ITEM (ECTF_NOPARENT, "The parent CTF dictionary is unavailable.") \
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_CTF_ITEM (ECTF_DMODEL, "Data model mismatch.") \
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_CTF_ITEM (ECTF_LINKADDEDLATE, "File added to link too late.") \
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_CTF_ITEM (ECTF_ZALLOC, "Failed to allocate (de)compression buffer.") \
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_CTF_ITEM (ECTF_DECOMPRESS, "Failed to decompress CTF data.") \
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_CTF_ITEM (ECTF_STRTAB, "External string table is not available.") \
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_CTF_ITEM (ECTF_BADNAME, "String name offset is corrupt.") \
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_CTF_ITEM (ECTF_BADID, "Invalid type identifier.") \
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_CTF_ITEM (ECTF_NOTSOU, "Type is not a struct or union.") \
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_CTF_ITEM (ECTF_NOTENUM, "Type is not an enum.") \
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_CTF_ITEM (ECTF_NOTSUE, "Type is not a struct, union, or enum.") \
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_CTF_ITEM (ECTF_NOTINTFP, "Type is not an integer, float, or enum.") \
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_CTF_ITEM (ECTF_NOTARRAY, "Type is not an array.") \
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_CTF_ITEM (ECTF_NOTREF, "Type does not reference another type.") \
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_CTF_ITEM (ECTF_NAMELEN, "Buffer is too small to hold type name.") \
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_CTF_ITEM (ECTF_NOTYPE, "No type found corresponding to name.") \
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_CTF_ITEM (ECTF_SYNTAX, "Syntax error in type name.") \
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_CTF_ITEM (ECTF_NOTFUNC, "Symbol table entry or type is not a function.") \
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_CTF_ITEM (ECTF_NOFUNCDAT, "No function information available for function.") \
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_CTF_ITEM (ECTF_NOTDATA, "Symbol table entry does not refer to a data object.") \
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_CTF_ITEM (ECTF_NOTYPEDAT, "No type information available for symbol.") \
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_CTF_ITEM (ECTF_NOLABEL, "No label found corresponding to name.") \
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_CTF_ITEM (ECTF_NOLABELDATA, "File does not contain any labels.") \
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_CTF_ITEM (ECTF_NOTSUP, "Feature not supported.") \
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_CTF_ITEM (ECTF_NOENUMNAM, "Enum element name not found.") \
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_CTF_ITEM (ECTF_NOMEMBNAM, "Member name not found.") \
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_CTF_ITEM (ECTF_RDONLY, "CTF container is read-only.") \
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_CTF_ITEM (ECTF_DTFULL, "CTF type is full (no more members allowed).") \
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_CTF_ITEM (ECTF_FULL, "CTF container is full.") \
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_CTF_ITEM (ECTF_DUPLICATE, "Duplicate member or variable name.") \
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_CTF_ITEM (ECTF_CONFLICT, "Conflicting type is already defined.") \
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_CTF_ITEM (ECTF_OVERROLLBACK, "Attempt to roll back past a ctf_update.") \
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_CTF_ITEM (ECTF_COMPRESS, "Failed to compress CTF data.") \
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_CTF_ITEM (ECTF_ARCREATE, "Error creating CTF archive.") \
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_CTF_ITEM (ECTF_ARNNAME, "Name not found in CTF archive.") \
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_CTF_ITEM (ECTF_SLICEOVERFLOW, "Overflow of type bitness or offset in slice.") \
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_CTF_ITEM (ECTF_DUMPSECTUNKNOWN, "Unknown section number in dump.") \
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_CTF_ITEM (ECTF_DUMPSECTCHANGED, "Section changed in middle of dump.") \
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_CTF_ITEM (ECTF_NOTYET, "Feature not yet implemented.") \
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_CTF_ITEM (ECTF_INTERNAL, "Internal error: assertion failure.") \
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_CTF_ITEM (ECTF_NONREPRESENTABLE, "Type not representable in CTF.") \
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_CTF_ITEM (ECTF_NEXT_END, "End of iteration.") \
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_CTF_ITEM (ECTF_NEXT_WRONGFUN, "Wrong iteration function called.") \
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_CTF_ITEM (ECTF_NEXT_WRONGFP, "Iteration entity changed in mid-iterate.") \
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_CTF_ITEM (ECTF_FLAGS, "CTF header contains flags unknown to libctf.") \
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_CTF_ITEM (ECTF_NEEDSBFD, "This feature needs a libctf with BFD support.") \
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_CTF_ITEM (ECTF_INCOMPLETE, "Type is not a complete type.") \
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_CTF_ITEM (ECTF_NONAME, "Type name must not be empty.")
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#define ECTF_BASE 1000 /* Base value for libctf errnos. */
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enum
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{
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#define _CTF_FIRST(NAME, STR) NAME = ECTF_BASE
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#define _CTF_ITEM(NAME, STR) , NAME
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_CTF_ERRORS
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#undef _CTF_ITEM
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#undef _CTF_FIRST
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};
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#define ECTF_NERR (ECTF_NONAME - ECTF_BASE + 1) /* Count of CTF errors. */
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/* The CTF data model is inferred to be the caller's data model or the data
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model of the given object, unless ctf_setmodel is explicitly called. */
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#define CTF_MODEL_ILP32 1 /* Object data model is ILP32. */
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#define CTF_MODEL_LP64 2 /* Object data model is LP64. */
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#ifdef _LP64
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# define CTF_MODEL_NATIVE CTF_MODEL_LP64
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#else
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# define CTF_MODEL_NATIVE CTF_MODEL_ILP32
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#endif
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/* Dynamic CTF containers can be created using ctf_create. The ctf_add_*
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routines can be used to add new definitions to the dynamic container.
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New types are labeled as root or non-root to determine whether they are
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visible at the top-level program scope when subsequently doing a lookup. */
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#define CTF_ADD_NONROOT 0 /* Type only visible in nested scope. */
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#define CTF_ADD_ROOT 1 /* Type visible at top-level scope. */
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/* Flags for ctf_member_next. */
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#define CTF_MN_RECURSE 0x1 /* Recurse into unnamed members. */
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/* These typedefs are used to define the signature for callback functions that
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can be used with the iteration and visit functions below. There is also a
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family of iteration functions that do not require callbacks. */
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typedef int ctf_visit_f (const char *name, ctf_id_t type, unsigned long offset,
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int depth, void *arg);
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typedef int ctf_member_f (const char *name, ctf_id_t membtype,
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unsigned long offset, void *arg);
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typedef int ctf_enum_f (const char *name, int val, void *arg);
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typedef int ctf_variable_f (const char *name, ctf_id_t type, void *arg);
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typedef int ctf_type_f (ctf_id_t type, void *arg);
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typedef int ctf_type_all_f (ctf_id_t type, int flag, void *arg);
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typedef int ctf_label_f (const char *name, const ctf_lblinfo_t *info,
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void *arg);
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typedef int ctf_archive_member_f (ctf_dict_t *fp, const char *name, void *arg);
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typedef int ctf_archive_raw_member_f (const char *name, const void *content,
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size_t len, void *arg);
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typedef char *ctf_dump_decorate_f (ctf_sect_names_t sect,
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char *line, void *arg);
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typedef struct ctf_dump_state ctf_dump_state_t;
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/* Iteration state for the _next functions, and allocators/copiers/freers for
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it. (None of these are needed for the simple case of iterating to the end:
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the _next function allocate and free the iterators for you.) */
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typedef struct ctf_next ctf_next_t;
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extern ctf_next_t *ctf_next_create (void);
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extern void ctf_next_destroy (ctf_next_t *);
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extern ctf_next_t *ctf_next_copy (ctf_next_t *);
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/* Opening. These mostly return an abstraction over both CTF files and CTF
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archives: so they can be used to open both. CTF files will appear to be an
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archive with one member named '.ctf'. The low-level functions
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ctf_simple_open and ctf_bufopen return ctf_dict_t's directly, and cannot
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be used on CTF archives.
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Some of these functions take raw symtab and strtab section content in the
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form of ctf_sect_t structures. For CTF in ELF files, these should be
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extracted from .dynsym and its associated string table (usually .dynsym)
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whenever the CTF_F_DYNSTR flag is set in the CTF preamble (which it almost
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always will be for linked objects, but not for .o files). */
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extern ctf_archive_t *ctf_bfdopen (struct bfd *, int *);
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extern ctf_archive_t *ctf_bfdopen_ctfsect (struct bfd *, const ctf_sect_t *,
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int *);
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extern ctf_archive_t *ctf_fdopen (int fd, const char *filename,
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const char *target, int *errp);
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extern ctf_archive_t *ctf_open (const char *filename,
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const char *target, int *errp);
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extern void ctf_close (ctf_archive_t *);
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extern ctf_sect_t ctf_getdatasect (const ctf_dict_t *);
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extern ctf_sect_t ctf_getsymsect (const ctf_dict_t *);
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extern ctf_sect_t ctf_getstrsect (const ctf_dict_t *);
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extern void ctf_symsect_endianness (ctf_dict_t *, int little_endian);
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extern ctf_archive_t *ctf_get_arc (const ctf_dict_t *);
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extern ctf_archive_t *ctf_arc_open (const char *, int *);
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extern ctf_archive_t *ctf_arc_bufopen (const ctf_sect_t *,
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const ctf_sect_t *,
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const ctf_sect_t *,
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int *);
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extern void ctf_arc_symsect_endianness (ctf_archive_t *, int little_endian);
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extern void ctf_arc_close (ctf_archive_t *);
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extern ctf_dict_t *ctf_arc_lookup_symbol (ctf_archive_t *,
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unsigned long symidx,
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ctf_id_t *, int *errp);
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extern ctf_dict_t *ctf_arc_lookup_symbol_name (ctf_archive_t *,
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const char *name,
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ctf_id_t *, int *errp);
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extern void ctf_arc_flush_caches (ctf_archive_t *);
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extern ctf_dict_t *ctf_dict_open (const ctf_archive_t *,
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const char *, int *);
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extern ctf_dict_t *ctf_dict_open_sections (const ctf_archive_t *,
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const ctf_sect_t *,
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const ctf_sect_t *,
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const char *, int *);
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extern size_t ctf_archive_count (const ctf_archive_t *);
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/* The next functions return or close real CTF files, or write out CTF archives,
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not opaque containers around either. */
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extern ctf_dict_t *ctf_simple_open (const char *, size_t, const char *, size_t,
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size_t, const char *, size_t, int *);
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extern ctf_dict_t *ctf_bufopen (const ctf_sect_t *, const ctf_sect_t *,
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const ctf_sect_t *, int *);
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extern void ctf_ref (ctf_dict_t *);
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extern void ctf_dict_close (ctf_dict_t *);
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extern int ctf_arc_write (const char *, ctf_dict_t **, size_t,
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const char **, size_t);
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extern int ctf_arc_write_fd (int, ctf_dict_t **, size_t, const char **,
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size_t);
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extern const char *ctf_cuname (ctf_dict_t *);
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extern int ctf_cuname_set (ctf_dict_t *, const char *);
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extern ctf_dict_t *ctf_parent_dict (ctf_dict_t *);
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extern const char *ctf_parent_name (ctf_dict_t *);
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extern int ctf_parent_name_set (ctf_dict_t *, const char *);
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extern int ctf_type_isparent (ctf_dict_t *, ctf_id_t);
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extern int ctf_type_ischild (ctf_dict_t *, ctf_id_t);
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extern int ctf_import (ctf_dict_t *, ctf_dict_t *);
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extern int ctf_setmodel (ctf_dict_t *, int);
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extern int ctf_getmodel (ctf_dict_t *);
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extern void ctf_setspecific (ctf_dict_t *, void *);
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extern void *ctf_getspecific (ctf_dict_t *);
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extern int ctf_errno (ctf_dict_t *);
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extern const char *ctf_errmsg (int);
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extern int ctf_version (int);
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extern int ctf_func_info (ctf_dict_t *, unsigned long, ctf_funcinfo_t *);
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extern int ctf_func_args (ctf_dict_t *, unsigned long, uint32_t, ctf_id_t *);
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extern int ctf_func_type_info (ctf_dict_t *, ctf_id_t, ctf_funcinfo_t *);
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extern int ctf_func_type_args (ctf_dict_t *, ctf_id_t, uint32_t, ctf_id_t *);
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extern ctf_id_t ctf_lookup_by_name (ctf_dict_t *, const char *);
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extern ctf_id_t ctf_lookup_by_symbol (ctf_dict_t *, unsigned long);
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extern ctf_id_t ctf_lookup_by_symbol_name (ctf_dict_t *, const char *);
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extern ctf_id_t ctf_symbol_next (ctf_dict_t *, ctf_next_t **,
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const char **name, int functions);
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extern ctf_id_t ctf_lookup_variable (ctf_dict_t *, const char *);
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extern ctf_id_t ctf_type_resolve (ctf_dict_t *, ctf_id_t);
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extern char *ctf_type_aname (ctf_dict_t *, ctf_id_t);
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extern char *ctf_type_aname_raw (ctf_dict_t *, ctf_id_t);
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extern ssize_t ctf_type_lname (ctf_dict_t *, ctf_id_t, char *, size_t);
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extern char *ctf_type_name (ctf_dict_t *, ctf_id_t, char *, size_t);
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extern const char *ctf_type_name_raw (ctf_dict_t *, ctf_id_t);
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extern ssize_t ctf_type_size (ctf_dict_t *, ctf_id_t);
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extern ssize_t ctf_type_align (ctf_dict_t *, ctf_id_t);
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extern int ctf_type_kind (ctf_dict_t *, ctf_id_t);
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extern int ctf_type_kind_forwarded (ctf_dict_t *, ctf_id_t);
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extern ctf_id_t ctf_type_reference (ctf_dict_t *, ctf_id_t);
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extern ctf_id_t ctf_type_pointer (ctf_dict_t *, ctf_id_t);
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extern int ctf_type_encoding (ctf_dict_t *, ctf_id_t, ctf_encoding_t *);
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extern int ctf_type_visit (ctf_dict_t *, ctf_id_t, ctf_visit_f *, void *);
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extern int ctf_type_cmp (ctf_dict_t *, ctf_id_t, ctf_dict_t *, ctf_id_t);
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extern int ctf_type_compat (ctf_dict_t *, ctf_id_t, ctf_dict_t *, ctf_id_t);
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extern int ctf_member_info (ctf_dict_t *, ctf_id_t, const char *,
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ctf_membinfo_t *);
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extern int ctf_array_info (ctf_dict_t *, ctf_id_t, ctf_arinfo_t *);
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extern const char *ctf_enum_name (ctf_dict_t *, ctf_id_t, int);
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extern int ctf_enum_value (ctf_dict_t *, ctf_id_t, const char *, int *);
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extern void ctf_label_set (ctf_dict_t *, const char *);
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extern const char *ctf_label_get (ctf_dict_t *);
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extern const char *ctf_label_topmost (ctf_dict_t *);
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extern int ctf_label_info (ctf_dict_t *, const char *, ctf_lblinfo_t *);
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extern int ctf_member_count (ctf_dict_t *, ctf_id_t);
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extern int ctf_member_iter (ctf_dict_t *, ctf_id_t, ctf_member_f *, void *);
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extern ssize_t ctf_member_next (ctf_dict_t *, ctf_id_t, ctf_next_t **,
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const char **name, ctf_id_t *membtype,
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int flags);
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extern int ctf_enum_iter (ctf_dict_t *, ctf_id_t, ctf_enum_f *, void *);
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extern const char *ctf_enum_next (ctf_dict_t *, ctf_id_t, ctf_next_t **,
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int *);
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extern int ctf_type_iter (ctf_dict_t *, ctf_type_f *, void *);
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extern int ctf_type_iter_all (ctf_dict_t *, ctf_type_all_f *, void *);
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extern ctf_id_t ctf_type_next (ctf_dict_t *, ctf_next_t **,
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int *flag, int want_hidden);
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extern int ctf_label_iter (ctf_dict_t *, ctf_label_f *, void *);
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extern int ctf_label_next (ctf_dict_t *, ctf_next_t **, const char **); /* TBD */
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extern int ctf_variable_iter (ctf_dict_t *, ctf_variable_f *, void *);
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extern ctf_id_t ctf_variable_next (ctf_dict_t *, ctf_next_t **,
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const char **);
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extern int ctf_archive_iter (const ctf_archive_t *, ctf_archive_member_f *,
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void *);
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extern ctf_dict_t *ctf_archive_next (const ctf_archive_t *, ctf_next_t **,
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const char **, int skip_parent, int *errp);
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/* This function alone does not currently operate on CTF files masquerading
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as archives, and returns -EINVAL: the raw data is no longer available. It is
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expected to be used only by archiving tools, in any case, which have no need
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to deal with non-archives at all. */
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extern int ctf_archive_raw_iter (const ctf_archive_t *,
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ctf_archive_raw_member_f *, void *);
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extern char *ctf_dump (ctf_dict_t *, ctf_dump_state_t **state,
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ctf_sect_names_t sect, ctf_dump_decorate_f *,
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void *arg);
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/* Error-warning reporting: an 'iterator' that returns errors and warnings from
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the error/warning list, in order of emission. Errors and warnings are popped
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after return: the caller must free the returned error-text pointer. */
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extern char *ctf_errwarning_next (ctf_dict_t *, ctf_next_t **,
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int *is_warning, int *errp);
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extern ctf_id_t ctf_add_array (ctf_dict_t *, uint32_t,
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const ctf_arinfo_t *);
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extern ctf_id_t ctf_add_const (ctf_dict_t *, uint32_t, ctf_id_t);
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extern ctf_id_t ctf_add_enum_encoded (ctf_dict_t *, uint32_t, const char *,
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const ctf_encoding_t *);
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extern ctf_id_t ctf_add_enum (ctf_dict_t *, uint32_t, const char *);
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extern ctf_id_t ctf_add_float (ctf_dict_t *, uint32_t,
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const char *, const ctf_encoding_t *);
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extern ctf_id_t ctf_add_forward (ctf_dict_t *, uint32_t, const char *,
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uint32_t);
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extern ctf_id_t ctf_add_function (ctf_dict_t *, uint32_t,
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const ctf_funcinfo_t *, const ctf_id_t *);
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extern ctf_id_t ctf_add_integer (ctf_dict_t *, uint32_t, const char *,
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const ctf_encoding_t *);
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extern ctf_id_t ctf_add_slice (ctf_dict_t *, uint32_t, ctf_id_t, const ctf_encoding_t *);
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extern ctf_id_t ctf_add_pointer (ctf_dict_t *, uint32_t, ctf_id_t);
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extern ctf_id_t ctf_add_type (ctf_dict_t *, ctf_dict_t *, ctf_id_t);
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extern ctf_id_t ctf_add_typedef (ctf_dict_t *, uint32_t, const char *,
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ctf_id_t);
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extern ctf_id_t ctf_add_restrict (ctf_dict_t *, uint32_t, ctf_id_t);
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extern ctf_id_t ctf_add_struct (ctf_dict_t *, uint32_t, const char *);
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extern ctf_id_t ctf_add_union (ctf_dict_t *, uint32_t, const char *);
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extern ctf_id_t ctf_add_struct_sized (ctf_dict_t *, uint32_t, const char *,
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size_t);
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extern ctf_id_t ctf_add_union_sized (ctf_dict_t *, uint32_t, const char *,
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size_t);
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extern ctf_id_t ctf_add_unknown (ctf_dict_t *, uint32_t, const char *);
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extern ctf_id_t ctf_add_volatile (ctf_dict_t *, uint32_t, ctf_id_t);
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extern int ctf_add_enumerator (ctf_dict_t *, ctf_id_t, const char *, int);
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extern int ctf_add_member (ctf_dict_t *, ctf_id_t, const char *, ctf_id_t);
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extern int ctf_add_member_offset (ctf_dict_t *, ctf_id_t, const char *,
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ctf_id_t, unsigned long);
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extern int ctf_add_member_encoded (ctf_dict_t *, ctf_id_t, const char *,
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ctf_id_t, unsigned long,
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const ctf_encoding_t);
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extern int ctf_add_variable (ctf_dict_t *, const char *, ctf_id_t);
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extern int ctf_add_objt_sym (ctf_dict_t *, const char *, ctf_id_t);
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extern int ctf_add_func_sym (ctf_dict_t *, const char *, ctf_id_t);
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extern int ctf_set_array (ctf_dict_t *, ctf_id_t, const ctf_arinfo_t *);
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extern ctf_dict_t *ctf_create (int *);
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extern int ctf_update (ctf_dict_t *);
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extern ctf_snapshot_id_t ctf_snapshot (ctf_dict_t *);
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extern int ctf_rollback (ctf_dict_t *, ctf_snapshot_id_t);
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extern int ctf_discard (ctf_dict_t *);
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extern int ctf_write (ctf_dict_t *, int);
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extern int ctf_gzwrite (ctf_dict_t *fp, gzFile fd);
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extern int ctf_compress_write (ctf_dict_t * fp, int fd);
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extern unsigned char *ctf_write_mem (ctf_dict_t *, size_t *, size_t threshold);
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extern int ctf_link_add_ctf (ctf_dict_t *, ctf_archive_t *, const char *);
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/* The variable filter should return nonzero if a variable should not
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appear in the output. */
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typedef int ctf_link_variable_filter_f (ctf_dict_t *, const char *, ctf_id_t,
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void *);
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extern int ctf_link_set_variable_filter (ctf_dict_t *,
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ctf_link_variable_filter_f *, void *);
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extern int ctf_link (ctf_dict_t *, int flags);
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typedef const char *ctf_link_strtab_string_f (uint32_t *offset, void *arg);
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extern int ctf_link_add_strtab (ctf_dict_t *, ctf_link_strtab_string_f *,
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void *);
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extern int ctf_link_add_linker_symbol (ctf_dict_t *, ctf_link_sym_t *);
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extern int ctf_link_shuffle_syms (ctf_dict_t *);
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extern unsigned char *ctf_link_write (ctf_dict_t *, size_t *size,
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size_t threshold);
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/* Specialist linker functions. These functions are not used by ld, but can be
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used by other programs making use of the linker machinery for other purposes
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to customize its output. */
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extern int ctf_link_add_cu_mapping (ctf_dict_t *, const char *from,
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const char *to);
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typedef char *ctf_link_memb_name_changer_f (ctf_dict_t *,
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const char *, void *);
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extern void ctf_link_set_memb_name_changer
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(ctf_dict_t *, ctf_link_memb_name_changer_f *, void *);
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extern void ctf_setdebug (int debug);
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extern int ctf_getdebug (void);
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/* Deprecated aliases for existing functions and types. */
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struct ctf_file;
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typedef struct ctf_dict ctf_file_t;
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extern void ctf_file_close (ctf_file_t *);
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extern ctf_dict_t *ctf_parent_file (ctf_dict_t *);
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extern ctf_dict_t *ctf_arc_open_by_name (const ctf_archive_t *,
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const char *, int *);
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extern ctf_dict_t *ctf_arc_open_by_name_sections (const ctf_archive_t *,
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const ctf_sect_t *,
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const ctf_sect_t *,
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const char *, int *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _CTF_API_H */
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