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diff --git a/lib/libelf/_libelf.h b/lib/libelf/_libelf.h
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+/*-
+ * Copyright (c) 2006,2008-2011 Joseph Koshy
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $Id: _libelf.h,v 1.1 2019/02/01 05:27:37 jsg Exp $
+ */
+
+#ifndef __LIBELF_H_
+#define __LIBELF_H_
+
+#include <sys/queue.h>
+
+#include "_libelf_config.h"
+
+#include "_elftc.h"
+
+/*
+ * Library-private data structures.
+ */
+
+#define LIBELF_MSG_SIZE 256
+
+struct _libelf_globals {
+ int libelf_arch;
+ unsigned int libelf_byteorder;
+ int libelf_class;
+ int libelf_error;
+ int libelf_fillchar;
+ unsigned int libelf_version;
+ unsigned char libelf_msg[LIBELF_MSG_SIZE];
+};
+
+extern struct _libelf_globals _libelf;
+
+#define LIBELF_PRIVATE(N) (_libelf.libelf_##N)
+
+#define LIBELF_ELF_ERROR_MASK 0xFF
+#define LIBELF_OS_ERROR_SHIFT 8
+
+#define LIBELF_ERROR(E, O) (((E) & LIBELF_ELF_ERROR_MASK) | \
+ ((O) << LIBELF_OS_ERROR_SHIFT))
+
+#define LIBELF_SET_ERROR(E, O) do { \
+ LIBELF_PRIVATE(error) = LIBELF_ERROR(ELF_E_##E, (O)); \
+ } while (0)
+
+#define LIBELF_ADJUST_AR_SIZE(S) (((S) + 1U) & ~1U)
+
+/*
+ * Flags for library internal use. These use the upper 16 bits of the
+ * `e_flags' field.
+ */
+#define LIBELF_F_API_MASK 0x00FFFFU /* Flags defined by the API. */
+#define LIBELF_F_AR_HEADER 0x010000U /* translated header available */
+#define LIBELF_F_AR_VARIANT_SVR4 0x020000U /* BSD style ar(1) archive */
+#define LIBELF_F_DATA_MALLOCED 0x040000U /* whether data was malloc'ed */
+#define LIBELF_F_RAWFILE_MALLOC 0x080000U /* whether e_rawfile was malloc'ed */
+#define LIBELF_F_RAWFILE_MMAP 0x100000U /* whether e_rawfile was mmap'ed */
+#define LIBELF_F_SHDRS_LOADED 0x200000U /* whether all shdrs were read in */
+#define LIBELF_F_SPECIAL_FILE 0x400000U /* non-regular file */
+
+struct _Elf {
+ int e_activations; /* activation count */
+ unsigned int e_byteorder; /* ELFDATA* */
+ int e_class; /* ELFCLASS* */
+ Elf_Cmd e_cmd; /* ELF_C_* used at creation time */
+ int e_fd; /* associated file descriptor */
+ unsigned int e_flags; /* ELF_F_* & LIBELF_F_* flags */
+ Elf_Kind e_kind; /* ELF_K_* */
+ Elf *e_parent; /* non-NULL for archive members */
+ unsigned char *e_rawfile; /* uninterpreted bytes */
+ size_t e_rawsize; /* size of uninterpreted bytes */
+ unsigned int e_version; /* file version */
+
+ /*
+ * Header information for archive members. See the
+ * LIBELF_F_AR_HEADER flag.
+ */
+ union {
+ Elf_Arhdr *e_arhdr; /* translated header */
+ unsigned char *e_rawhdr; /* untranslated header */
+ } e_hdr;
+
+ union {
+ struct { /* ar(1) archives */
+ off_t e_next; /* set by elf_rand()/elf_next() */
+ int e_nchildren;
+ unsigned char *e_rawstrtab; /* file name strings */
+ size_t e_rawstrtabsz;
+ unsigned char *e_rawsymtab; /* symbol table */
+ size_t e_rawsymtabsz;
+ Elf_Arsym *e_symtab;
+ size_t e_symtabsz;
+ } e_ar;
+ struct { /* regular ELF files */
+ union {
+ Elf32_Ehdr *e_ehdr32;
+ Elf64_Ehdr *e_ehdr64;
+ } e_ehdr;
+ union {
+ Elf32_Phdr *e_phdr32;
+ Elf64_Phdr *e_phdr64;
+ } e_phdr;
+ STAILQ_HEAD(, _Elf_Scn) e_scn; /* section list */
+ size_t e_nphdr; /* number of Phdr entries */
+ size_t e_nscn; /* number of sections */
+ size_t e_strndx; /* string table section index */
+ } e_elf;
+ } e_u;
+};
+
+/*
+ * The internal descriptor wrapping the "Elf_Data" type.
+ */
+struct _Libelf_Data {
+ Elf_Data d_data; /* The exported descriptor. */
+ Elf_Scn *d_scn; /* The containing section */
+ unsigned int d_flags;
+ STAILQ_ENTRY(_Libelf_Data) d_next;
+};
+
+struct _Elf_Scn {
+ union {
+ Elf32_Shdr s_shdr32;
+ Elf64_Shdr s_shdr64;
+ } s_shdr;
+ STAILQ_HEAD(, _Libelf_Data) s_data; /* translated data */
+ STAILQ_HEAD(, _Libelf_Data) s_rawdata; /* raw data */
+ STAILQ_ENTRY(_Elf_Scn) s_next;
+ struct _Elf *s_elf; /* parent ELF descriptor */
+ unsigned int s_flags; /* flags for the section as a whole */
+ size_t s_ndx; /* index# for this section */
+ uint64_t s_offset; /* managed by elf_update() */
+ uint64_t s_rawoff; /* original offset in the file */
+ uint64_t s_size; /* managed by elf_update() */
+};
+
+
+enum {
+ ELF_TOFILE,
+ ELF_TOMEMORY
+};
+
+
+/*
+ * The LIBELF_COPY macros are used to copy fields from a GElf_*
+ * structure to their 32-bit counterparts, while checking for out of
+ * range values.
+ *
+ * - LIBELF_COPY_U32 :: copy an unsigned 32 bit field.
+ * - LIBELF_COPY_S32 :: copy a signed 32 bit field.
+ */
+
+#define LIBELF_COPY_U32(DST, SRC, NAME) do { \
+ if ((SRC)->NAME > UINT32_MAX) { \
+ LIBELF_SET_ERROR(RANGE, 0); \
+ return (0); \
+ } \
+ (DST)->NAME = (SRC)->NAME & 0xFFFFFFFFU; \
+ } while (0)
+
+#define LIBELF_COPY_S32(DST, SRC, NAME) do { \
+ if ((SRC)->NAME > INT32_MAX || \
+ (SRC)->NAME < INT32_MIN) { \
+ LIBELF_SET_ERROR(RANGE, 0); \
+ return (0); \
+ } \
+ (DST)->NAME = (int32_t) (SRC)->NAME; \
+ } while (0)
+
+
+/*
+ * Function Prototypes.
+ */
+
+typedef int _libelf_translator_function(unsigned char *_dst, size_t dsz,
+ unsigned char *_src, size_t _cnt, int _byteswap);
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+struct _Libelf_Data *_libelf_allocate_data(Elf_Scn *_s);
+Elf *_libelf_allocate_elf(void);
+Elf_Scn *_libelf_allocate_scn(Elf *_e, size_t _ndx);
+Elf_Arhdr *_libelf_ar_gethdr(Elf *_e);
+Elf *_libelf_ar_open(Elf *_e, int _reporterror);
+Elf *_libelf_ar_open_member(int _fd, Elf_Cmd _c, Elf *_ar);
+Elf_Arsym *_libelf_ar_process_bsd_symtab(Elf *_ar, size_t *_dst);
+Elf_Arsym *_libelf_ar_process_svr4_symtab(Elf *_ar, size_t *_dst);
+long _libelf_checksum(Elf *_e, int _elfclass);
+void *_libelf_ehdr(Elf *_e, int _elfclass, int _allocate);
+int _libelf_elfmachine(Elf *_e);
+unsigned int _libelf_falign(Elf_Type _t, int _elfclass);
+size_t _libelf_fsize(Elf_Type _t, int _elfclass, unsigned int _version,
+ size_t count);
+_libelf_translator_function *_libelf_get_translator(Elf_Type _t,
+ int _direction, int _elfclass, int _elfmachine);
+void *_libelf_getphdr(Elf *_e, int _elfclass);
+void *_libelf_getshdr(Elf_Scn *_scn, int _elfclass);
+void _libelf_init_elf(Elf *_e, Elf_Kind _kind);
+int _libelf_load_section_headers(Elf *e, void *ehdr);
+unsigned int _libelf_malign(Elf_Type _t, int _elfclass);
+Elf *_libelf_memory(unsigned char *_image, size_t _sz, int _reporterror);
+size_t _libelf_msize(Elf_Type _t, int _elfclass, unsigned int _version);
+void *_libelf_newphdr(Elf *_e, int _elfclass, size_t _count);
+Elf *_libelf_open_object(int _fd, Elf_Cmd _c, int _reporterror);
+struct _Libelf_Data *_libelf_release_data(struct _Libelf_Data *_d);
+Elf *_libelf_release_elf(Elf *_e);
+Elf_Scn *_libelf_release_scn(Elf_Scn *_s);
+int _libelf_setphnum(Elf *_e, void *_eh, int _elfclass, size_t _phnum);
+int _libelf_setshnum(Elf *_e, void *_eh, int _elfclass, size_t _shnum);
+int _libelf_setshstrndx(Elf *_e, void *_eh, int _elfclass,
+ size_t _shstrndx);
+Elf_Data *_libelf_xlate(Elf_Data *_d, const Elf_Data *_s,
+ unsigned int _encoding, int _elfclass, int _elfmachine, int _direction);
+int _libelf_xlate_shtype(uint32_t _sht);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __LIBELF_H_ */