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-rw-r--r--ext/libelf/_libelf.h193
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diff --git a/ext/libelf/_libelf.h b/ext/libelf/_libelf.h
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+/*-
+ * Copyright (c) 2006 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.
+ *
+ * $FreeBSD: src/lib/libelf/_libelf.h,v 1.2 2006/12/25 02:22:22 jkoshy Exp $
+ */
+
+#ifndef __LIBELF_H_
+#define __LIBELF_H_
+
+#include "elf_queue.h"
+
+#ifndef NULL
+#define NULL ((void *) 0)
+#endif
+
+/*
+ * 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;
+ char libelf_msg[LIBELF_MSG_SIZE];
+};
+
+struct _libelf_globals *_libelf_private();
+
+#define LIBELF_PRIVATE(N) (_libelf_private()->libelf_##N)
+
+#define LIBELF_ELF_ERROR_MASK 0xFF
+#define LIBELF_OS_ERROR_SHIFT 8
+
+#define LIBELF_SET_ERROR(E, O) do { \
+ LIBELF_PRIVATE(error) = ((ELF_E_##E & LIBELF_ELF_ERROR_MASK)| \
+ ((O) << LIBELF_OS_ERROR_SHIFT)); \
+ } while (0)
+
+#define LIBELF_ADJUST_AR_SIZE(S) (((S) + 1U) & ~1U)
+
+/*
+ * Flags for library internal use. These use the upper 16 bits of a
+ * flags field.
+ */
+#define LIBELF_F_MALLOCED 0x010000 /* whether data was malloc'ed */
+#define LIBELF_F_MMAP 0x020000 /* whether e_rawfile was mmap'ed */
+#define LIBELF_F_SHDRS_LOADED 0x040000 /* whether all shdrs were read in */
+
+struct _Elf {
+ int e_activations; /* activation count */
+ Elf_Arhdr *e_arhdr; /* header for archive members */
+ 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 */
+ char *e_rawfile; /* uninterpreted bytes */
+ size_t e_rawsize; /* size of uninterpreted bytes */
+ unsigned int e_version; /* file version */
+
+ union {
+ struct { /* ar(1) archives */
+ off_t e_next; /* set by elf_rand()/elf_next() */
+ int e_nchildren;
+ char *e_rawstrtab; /* file name strings */
+ size_t e_rawstrtabsz;
+ 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;
+};
+
+struct _Elf_Scn {
+ union {
+ Elf32_Shdr s_shdr32;
+ Elf64_Shdr s_shdr64;
+ } s_shdr;
+ STAILQ_HEAD(, _Elf_Data) s_data; /* list of Elf_Data descriptors */
+ STAILQ_HEAD(, _Elf_Data) s_rawdata; /* raw data for this section */
+ 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
+};
+
+#define LIBELF_COPY_U32(DST,SRC,NAME) do { \
+ if ((SRC)->NAME > UINT_MAX) { \
+ LIBELF_SET_ERROR(RANGE, 0); \
+ return (0); \
+ } \
+ (DST)->NAME = (SRC)->NAME; \
+ } while (0)
+
+#define LIBELF_COPY_S32(DST,SRC,NAME) do { \
+ if ((SRC)->NAME > INT_MAX || \
+ (SRC)->NAME < INT_MIN) { \
+ LIBELF_SET_ERROR(RANGE, 0); \
+ return (0); \
+ } \
+ (DST)->NAME = (SRC)->NAME; \
+ } while (0)
+
+
+/*
+ * Prototypes
+ */
+
+Elf_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);
+Elf *_libelf_ar_open_member(int _fd, Elf_Cmd _c, Elf *_ar);
+Elf_Arsym *_libelf_ar_process_symtab(Elf *_ar, size_t *_dst);
+unsigned long _libelf_checksum(Elf *_e, int _elfclass);
+void *_libelf_ehdr(Elf *_e, int _elfclass, int _allocate);
+int _libelf_falign(Elf_Type _t, int _elfclass);
+size_t _libelf_fsize(Elf_Type _t, int _elfclass, unsigned int _version,
+ size_t count);
+void (*_libelf_get_translator(Elf_Type _t, int _direction, int _elfclass))
+ (char *_dst, char *_src, size_t _cnt, int _byteswap);
+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_malign(Elf_Type _t, int _elfclass);
+size_t _libelf_msize(Elf_Type _t, int _elfclass, unsigned int _version);
+void *_libelf_newphdr(Elf *_e, int _elfclass, size_t _count);
+Elf_Data *_libelf_release_data(Elf_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 _direction);
+int _libelf_xlate_shtype(uint32_t _sht);
+
+#endif /* __LIBELF_H_ */
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