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+/*
+ * libelf.h - public header file for libelf.
+ * Copyright (C) 1995 - 2008 Michael Riepe
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+/* @(#) $Id: libelf.h,v 1.29 2009/07/07 17:57:43 michael Exp $ */
+
+#ifndef _LIBELF_H
+#define _LIBELF_H
+
+#include <stddef.h> /* for size_t */
+#include <sys/types.h>
+
+#if __LIBELF_INTERNAL__
+#include <sys_elf.h>
+#else /* __LIBELF_INTERNAL__ */
+#include <libelf/sys_elf.h>
+#endif /* __LIBELF_INTERNAL__ */
+
+#if defined __GNUC__ && !defined __cplusplus
+#define DEPRECATED __attribute__((deprecated))
+#else
+#define DEPRECATED /* nothing */
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#ifndef __P
+# if (__STDC__ + 0) || defined(__cplusplus) || defined(_WIN32)
+# define __P(args) args
+# else /* __STDC__ || defined(__cplusplus) */
+# define __P(args) ()
+# endif /* __STDC__ || defined(__cplusplus) */
+#endif /* __P */
+
+/*
+ * Commands
+ */
+typedef enum {
+ ELF_C_NULL = 0, /* must be first, 0 */
+ ELF_C_READ,
+ ELF_C_WRITE,
+ ELF_C_CLR,
+ ELF_C_SET,
+ ELF_C_FDDONE,
+ ELF_C_FDREAD,
+ ELF_C_RDWR,
+ ELF_C_NUM /* must be last */
+} Elf_Cmd;
+
+/*
+ * Flags
+ */
+#define ELF_F_DIRTY 0x1
+#define ELF_F_LAYOUT 0x4
+/*
+ * Allow sections to overlap when ELF_F_LAYOUT is in effect.
+ * Note that this flag ist NOT portable, and that it may render
+ * the output file unusable. Use with extreme caution!
+ */
+#define ELF_F_LAYOUT_OVERLAP 0x10000000
+
+/*
+ * File types
+ */
+typedef enum {
+ ELF_K_NONE = 0, /* must be first, 0 */
+ ELF_K_AR,
+ ELF_K_COFF,
+ ELF_K_ELF,
+ ELF_K_NUM /* must be last */
+} Elf_Kind;
+
+/*
+ * Data types
+ */
+typedef enum {
+ ELF_T_BYTE = 0, /* must be first, 0 */
+ ELF_T_ADDR,
+ ELF_T_DYN,
+ ELF_T_EHDR,
+ ELF_T_HALF,
+ ELF_T_OFF,
+ ELF_T_PHDR,
+ ELF_T_RELA,
+ ELF_T_REL,
+ ELF_T_SHDR,
+ ELF_T_SWORD,
+ ELF_T_SYM,
+ ELF_T_WORD,
+ /*
+ * New stuff for 64-bit.
+ *
+ * Most implementations add ELF_T_SXWORD after ELF_T_SWORD
+ * which breaks binary compatibility with earlier versions.
+ * If this causes problems for you, contact me.
+ */
+ ELF_T_SXWORD,
+ ELF_T_XWORD,
+ /*
+ * Symbol versioning. Sun broke binary compatibility (again!),
+ * but I won't.
+ */
+ ELF_T_VDEF,
+ ELF_T_VNEED,
+ ELF_T_NUM /* must be last */
+} Elf_Type;
+
+/*
+ * Elf descriptor
+ */
+typedef struct Elf Elf;
+
+/*
+ * Section descriptor
+ */
+typedef struct Elf_Scn Elf_Scn;
+
+/*
+ * Archive member header
+ */
+typedef struct {
+ char* ar_name;
+ time_t ar_date;
+ long ar_uid;
+ long ar_gid;
+ unsigned long ar_mode;
+ off_t ar_size;
+ char* ar_rawname;
+} Elf_Arhdr;
+
+/*
+ * Archive symbol table
+ */
+typedef struct {
+ char* as_name;
+ size_t as_off;
+ unsigned long as_hash;
+} Elf_Arsym;
+
+/*
+ * Data descriptor
+ */
+typedef struct {
+ void* d_buf;
+ Elf_Type d_type;
+ size_t d_size;
+ off_t d_off;
+ size_t d_align;
+ unsigned d_version;
+} Elf_Data;
+
+/*
+ * Function declarations
+ */
+extern Elf *elf_begin __P((int __fd, Elf_Cmd __cmd, Elf *__ref));
+extern Elf *elf_memory __P((char *__image, size_t __size));
+extern int elf_cntl __P((Elf *__elf, Elf_Cmd __cmd));
+extern int elf_end __P((Elf *__elf));
+extern const char *elf_errmsg __P((int __err));
+extern int elf_errno __P((void));
+extern void elf_fill __P((int __fill));
+extern unsigned elf_flagdata __P((Elf_Data *__data, Elf_Cmd __cmd,
+ unsigned __flags));
+extern unsigned elf_flagehdr __P((Elf *__elf, Elf_Cmd __cmd,
+ unsigned __flags));
+extern unsigned elf_flagelf __P((Elf *__elf, Elf_Cmd __cmd,
+ unsigned __flags));
+extern unsigned elf_flagphdr __P((Elf *__elf, Elf_Cmd __cmd,
+ unsigned __flags));
+extern unsigned elf_flagscn __P((Elf_Scn *__scn, Elf_Cmd __cmd,
+ unsigned __flags));
+extern unsigned elf_flagshdr __P((Elf_Scn *__scn, Elf_Cmd __cmd,
+ unsigned __flags));
+extern size_t elf32_fsize __P((Elf_Type __type, size_t __count,
+ unsigned __ver));
+extern Elf_Arhdr *elf_getarhdr __P((Elf *__elf));
+extern Elf_Arsym *elf_getarsym __P((Elf *__elf, size_t *__ptr));
+extern off_t elf_getbase __P((Elf *__elf));
+extern Elf_Data *elf_getdata __P((Elf_Scn *__scn, Elf_Data *__data));
+extern Elf32_Ehdr *elf32_getehdr __P((Elf *__elf));
+extern char *elf_getident __P((Elf *__elf, size_t *__ptr));
+extern Elf32_Phdr *elf32_getphdr __P((Elf *__elf));
+extern Elf_Scn *elf_getscn __P((Elf *__elf, size_t __index));
+extern Elf32_Shdr *elf32_getshdr __P((Elf_Scn *__scn));
+extern unsigned long elf_hash __P((const unsigned char *__name));
+extern Elf_Kind elf_kind __P((Elf *__elf));
+extern size_t elf_ndxscn __P((Elf_Scn *__scn));
+extern Elf_Data *elf_newdata __P((Elf_Scn *__scn));
+extern Elf32_Ehdr *elf32_newehdr __P((Elf *__elf));
+extern Elf32_Phdr *elf32_newphdr __P((Elf *__elf, size_t __count));
+extern Elf_Scn *elf_newscn __P((Elf *__elf));
+extern Elf_Cmd elf_next __P((Elf *__elf));
+extern Elf_Scn *elf_nextscn __P((Elf *__elf, Elf_Scn *__scn));
+extern size_t elf_rand __P((Elf *__elf, size_t __offset));
+extern Elf_Data *elf_rawdata __P((Elf_Scn *__scn, Elf_Data *__data));
+extern char *elf_rawfile __P((Elf *__elf, size_t *__ptr));
+extern char *elf_strptr __P((Elf *__elf, size_t __section, size_t __offset));
+extern off_t elf_update __P((Elf *__elf, Elf_Cmd __cmd));
+extern unsigned elf_version __P((unsigned __ver));
+extern Elf_Data *elf32_xlatetof __P((Elf_Data *__dst, const Elf_Data *__src,
+ unsigned __encode));
+extern Elf_Data *elf32_xlatetom __P((Elf_Data *__dst, const Elf_Data *__src,
+ unsigned __encode));
+
+/*
+ * Additional functions found on Solaris
+ */
+extern long elf32_checksum __P((Elf *__elf));
+
+#if __LIBELF64
+/*
+ * 64-bit ELF functions
+ * Not available on all platforms
+ */
+extern Elf64_Ehdr *elf64_getehdr __P((Elf *__elf));
+extern Elf64_Ehdr *elf64_newehdr __P((Elf *__elf));
+extern Elf64_Phdr *elf64_getphdr __P((Elf *__elf));
+extern Elf64_Phdr *elf64_newphdr __P((Elf *__elf, size_t __count));
+extern Elf64_Shdr *elf64_getshdr __P((Elf_Scn *__scn));
+extern size_t elf64_fsize __P((Elf_Type __type, size_t __count,
+ unsigned __ver));
+extern Elf_Data *elf64_xlatetof __P((Elf_Data *__dst, const Elf_Data *__src,
+ unsigned __encode));
+extern Elf_Data *elf64_xlatetom __P((Elf_Data *__dst, const Elf_Data *__src,
+ unsigned __encode));
+
+/*
+ * Additional functions found on Solaris
+ */
+extern long elf64_checksum __P((Elf *__elf));
+
+#endif /* __LIBELF64 */
+
+/*
+ * ELF format extensions
+ *
+ * These functions return 0 on failure, 1 on success. Since other
+ * implementations of libelf may behave differently (there was quite
+ * some confusion about the correct values), they are now officially
+ * deprecated and should be replaced with the three new functions below.
+ */
+DEPRECATED extern int elf_getphnum __P((Elf *__elf, size_t *__resultp));
+DEPRECATED extern int elf_getshnum __P((Elf *__elf, size_t *__resultp));
+DEPRECATED extern int elf_getshstrndx __P((Elf *__elf, size_t *__resultp));
+/*
+ * Replacement functions (return -1 on failure, 0 on success).
+ */
+extern int elf_getphdrnum __P((Elf *__elf, size_t *__resultp));
+extern int elf_getshdrnum __P((Elf *__elf, size_t *__resultp));
+extern int elf_getshdrstrndx __P((Elf *__elf, size_t *__resultp));
+
+/*
+ * Convenience functions
+ *
+ * elfx_update_shstrndx is elf_getshstrndx's counterpart.
+ * It should be used to set the e_shstrndx member.
+ * There is no update function for e_shnum or e_phnum
+ * because libelf handles them internally.
+ */
+extern int elfx_update_shstrndx __P((Elf *__elf, size_t __index));
+
+/*
+ * Experimental extensions:
+ *
+ * elfx_movscn() moves section `__scn' directly after section `__after'.
+ * elfx_remscn() removes section `__scn'. Both functions update
+ * the section indices; elfx_remscn() also adjusts the ELF header's
+ * e_shnum member. The application is responsible for updating other
+ * data (in particular, e_shstrndx and the section headers' sh_link and
+ * sh_info members).
+ *
+ * elfx_movscn() returns the new index of the moved section.
+ * elfx_remscn() returns the original index of the removed section.
+ * A return value of zero indicates an error.
+ */
+extern size_t elfx_movscn __P((Elf *__elf, Elf_Scn *__scn, Elf_Scn *__after));
+extern size_t elfx_remscn __P((Elf *__elf, Elf_Scn *__scn));
+
+/*
+ * elf_delscn() is obsolete. Please use elfx_remscn() instead.
+ */
+extern size_t elf_delscn __P((Elf *__elf, Elf_Scn *__scn));
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _LIBELF_H */