add libelf from elftoolchain r3669

A 2 clause BSD licensed implementation of the SVR4 ELF API also
implemented by mr511.de libelf (devel/libelf in ports) and elfutils.

It is being added to base to allow Mesa to use it in future.

shlib major is higher than devel/libelf and pkg-config version is 0.8.2
to pass a glib2 configure test so this can replace the use of
devel/libelf in ports.

1 files changed, 376 insertions, 0 deletions

diff --git a/lib/libelf/libelf.h b/lib/libelf/libelf.h
new file mode 100644
index 00000000000..8c73d0aa4fa
--- /dev/null
+++ b/lib/libelf/libelf.h
@@ -0,0 +1,376 @@
+/*-
+ * Copyright (c) 2006,2008-2010 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 05:27:38 jsg Exp $
+ */
+
+#ifndef	_LIBELF_H_
+#define	_LIBELF_H_
+
+#include <sys/types.h>
+
+#include <sys/exec_elf.h>
+
+/* Non-standard public data structures */
+
+/* Capability */
+typedef struct {
+	Elf32_Word	c_tag;
+	union {
+		Elf32_Word	c_val;
+		Elf32_Addr	c_ptr;
+	} c_un;
+} Elf32_Cap;
+
+typedef struct {
+	Elf64_Xword	c_tag;
+	union {
+		Elf64_Xword	c_val;
+		Elf64_Addr	c_ptr;
+	} c_un;
+} Elf64_Cap;
+
+/* Move */
+typedef struct {
+	Elf32_Lword	m_value;
+	Elf32_Word	m_info;
+	Elf32_Word	m_poffset;
+	Elf32_Half	m_repeat;
+	Elf32_Half	m_stride;
+} Elf32_Move;
+
+typedef struct {
+	Elf64_Lword	m_value;
+	Elf64_Xword	m_info;
+	Elf64_Xword	m_poffset;
+	Elf64_Half	m_repeat;
+	Elf64_Half	m_stride;
+} Elf64_Move;
+
+/* Syminfo Table */
+typedef struct {
+	Elf32_Half	si_boundto;
+	Elf32_Half	si_flags;
+} Elf32_Syminfo;
+
+typedef struct {
+	Elf64_Half	si_boundto;
+	Elf64_Half	si_flags;
+} Elf64_Syminfo;
+
+/* Version Definition */
+typedef struct {
+	Elf32_Half	vd_version;
+	Elf32_Half	vd_flags;
+	Elf32_Half	vd_ndx;
+	Elf32_Half	vd_cnt;
+	Elf32_Word	vd_hash;
+	Elf32_Word	vd_aux;
+	Elf32_Word	vd_next;
+} Elf32_Verdef;
+
+typedef struct {
+	Elf32_Word	vda_name;
+	Elf32_Word	vda_next;
+} Elf32_Verdaux;
+
+typedef struct {
+	Elf64_Half	vd_version;
+	Elf64_Half	vd_flags;
+	Elf64_Half	vd_ndx;
+	Elf64_Half	vd_cnt;
+	Elf64_Word	vd_hash;
+	Elf64_Word	vd_aux;
+	Elf64_Word	vd_next;
+} Elf64_Verdef;
+
+typedef struct {
+	Elf64_Word	vda_name;
+	Elf64_Word	vda_next;
+} Elf64_Verdaux;
+
+/* Version Dependency */
+
+typedef struct {
+	Elf32_Half	vn_version;
+	Elf32_Half	vn_cnt;
+	Elf32_Word	vn_file;
+	Elf32_Word	vn_aux;
+	Elf32_Word	vn_next;
+} Elf32_Verneed;
+
+typedef struct {
+	Elf32_Word	vna_hash;
+	Elf32_Half	vna_flags;
+	Elf32_Half	vna_other;
+	Elf32_Word	vna_name;
+	Elf32_Word	vna_next;
+} Elf32_Vernaux;
+
+typedef struct {
+        Elf64_Half	vn_version;
+        Elf64_Half	vn_cnt;
+        Elf64_Word	vn_file;
+        Elf64_Word	vn_aux;
+        Elf64_Word	vn_next;
+} Elf64_Verneed;
+
+typedef struct {
+	Elf64_Word	vna_hash;
+	Elf64_Half	vna_flags;
+	Elf64_Half	vna_other;
+	Elf64_Word	vna_name;
+	Elf64_Word	vna_next;
+} Elf64_Vernaux;
+
+/* GNU-style hash sections */
+typedef struct {
+	uint32_t	gh_nbuckets;	/* Number of hash buckets. */
+	uint32_t	gh_symndx;	/* First visible symbol in .dynsym. */
+	uint32_t	gh_maskwords;	/* #maskwords used in bloom filter. */
+	uint32_t	gh_shift2;	/* Bloom filter shift count. */
+} Elf_GNU_Hash_Header;
+
+/* Library private data structures */
+typedef struct _Elf Elf;
+typedef struct _Elf_Scn Elf_Scn;
+
+/* File types */
+typedef enum {
+	ELF_K_NONE = 0,
+	ELF_K_AR,	/* `ar' archives */
+	ELF_K_COFF,	/* COFF files (unsupported) */
+	ELF_K_ELF,	/* ELF files */
+	ELF_K_NUM
+} Elf_Kind;
+
+#define	ELF_K_FIRST	ELF_K_NONE
+#define	ELF_K_LAST	ELF_K_NUM
+
+/* Data types */
+typedef enum {
+	ELF_T_ADDR,
+	ELF_T_BYTE,
+	ELF_T_CAP,
+	ELF_T_DYN,
+	ELF_T_EHDR,
+	ELF_T_HALF,
+	ELF_T_LWORD,
+	ELF_T_MOVE,
+	ELF_T_MOVEP,
+	ELF_T_NOTE,
+	ELF_T_OFF,
+	ELF_T_PHDR,
+	ELF_T_REL,
+	ELF_T_RELA,
+	ELF_T_SHDR,
+	ELF_T_SWORD,
+	ELF_T_SXWORD,
+	ELF_T_SYMINFO,
+	ELF_T_SYM,
+	ELF_T_VDEF,
+	ELF_T_VNEED,
+	ELF_T_WORD,
+	ELF_T_XWORD,
+	ELF_T_GNUHASH,	/* GNU style hash tables. */
+	ELF_T_NUM
+} Elf_Type;
+
+#define	ELF_T_FIRST	ELF_T_ADDR
+#define	ELF_T_LAST	ELF_T_GNUHASH
+
+/* Commands */
+typedef enum {
+	ELF_C_NULL = 0,
+	ELF_C_CLR,
+	ELF_C_FDDONE,
+	ELF_C_FDREAD,
+	ELF_C_RDWR,
+	ELF_C_READ,
+	ELF_C_SET,
+	ELF_C_WRITE,
+	ELF_C_NUM
+} Elf_Cmd;
+
+#define	ELF_C_FIRST	ELF_C_NULL
+#define	ELF_C_LAST	ELF_C_NUM
+
+/*
+ * An `Elf_Data' structure describes data in an
+ * ELF section.
+ */
+typedef struct _Elf_Data {
+	/*
+	 * `Public' members that are part of the ELF(3) API.
+	 */
+	uint64_t	d_align;
+	void		*d_buf;
+	uint64_t	d_off;
+	uint64_t	d_size;
+	Elf_Type	d_type;
+	unsigned int	d_version;
+} Elf_Data;
+
+/*
+ * An `Elf_Arhdr' structure describes an archive
+ * header.
+ */
+typedef struct {
+	time_t		ar_date;
+	char		*ar_name;	/* archive member name */
+	gid_t		ar_gid;
+	mode_t		ar_mode;
+	char		*ar_rawname;	/* 'raw' member name */
+	size_t		ar_size;
+	uid_t		ar_uid;
+
+	/*
+	 * Members that are not part of the public API.
+	 */
+	unsigned int	ar_flags;
+} Elf_Arhdr;
+
+/*
+ * An `Elf_Arsym' describes an entry in the archive
+ * symbol table.
+ */
+typedef struct {
+	off_t		as_off;		/* byte offset to member's header */
+	unsigned long	as_hash;	/* elf_hash() value for name */
+	char		*as_name; 	/* null terminated symbol name */
+} Elf_Arsym;
+
+/*
+ * Error numbers.
+ */
+
+enum Elf_Error {
+	ELF_E_NONE,	/* No error */
+	ELF_E_ARCHIVE,	/* Malformed ar(1) archive */
+	ELF_E_ARGUMENT,	/* Invalid argument */
+	ELF_E_CLASS,	/* Mismatched ELF class */
+	ELF_E_DATA,	/* Invalid data descriptor */
+	ELF_E_HEADER,	/* Missing or malformed ELF header */
+	ELF_E_IO,	/* I/O error */
+	ELF_E_LAYOUT,	/* Layout constraint violation */
+	ELF_E_MODE,	/* Wrong mode for ELF descriptor */
+	ELF_E_RANGE,	/* Value out of range */
+	ELF_E_RESOURCE,	/* Resource exhaustion */
+	ELF_E_SECTION,	/* Invalid section descriptor */
+	ELF_E_SEQUENCE,	/* API calls out of sequence */
+	ELF_E_UNIMPL,	/* Feature is unimplemented */
+	ELF_E_VERSION,	/* Unknown API version */
+	ELF_E_NUM	/* Max error number */
+};
+
+/*
+ * Flags defined by the API.
+ */
+
+#define	ELF_F_LAYOUT	0x001U	/* application will layout the file */
+#define	ELF_F_DIRTY	0x002U	/* a section or ELF file is dirty */
+
+/* ELF(3) API extensions. */
+#define	ELF_F_ARCHIVE	   0x100U /* archive creation */
+#define	ELF_F_ARCHIVE_SYSV 0x200U /* SYSV style archive */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+Elf		*elf_begin(int _fd, Elf_Cmd _cmd, Elf *_elf);
+int		elf_cntl(Elf *_elf, Elf_Cmd _cmd);
+int		elf_end(Elf *_elf);
+const char	*elf_errmsg(int _error);
+int		elf_errno(void);
+void		elf_fill(int _fill);
+unsigned int	elf_flagarhdr(Elf_Arhdr *_arh, Elf_Cmd _cmd,
+			unsigned int _flags);
+unsigned int	elf_flagdata(Elf_Data *_data, Elf_Cmd _cmd,
+			unsigned int _flags);
+unsigned int	elf_flagehdr(Elf *_elf, Elf_Cmd _cmd, unsigned int _flags);
+unsigned int	elf_flagelf(Elf *_elf, Elf_Cmd _cmd, unsigned int _flags);
+unsigned int	elf_flagphdr(Elf *_elf, Elf_Cmd _cmd, unsigned int _flags);
+unsigned int	elf_flagscn(Elf_Scn *_scn, Elf_Cmd _cmd, unsigned int _flags);
+unsigned int	elf_flagshdr(Elf_Scn *_scn, Elf_Cmd _cmd, unsigned int _flags);
+Elf_Arhdr	*elf_getarhdr(Elf *_elf);
+Elf_Arsym	*elf_getarsym(Elf *_elf, size_t *_ptr);
+off_t		elf_getbase(Elf *_elf);
+Elf_Data	*elf_getdata(Elf_Scn *, Elf_Data *);
+char		*elf_getident(Elf *_elf, size_t *_ptr);
+int		elf_getphdrnum(Elf *_elf, size_t *_dst);
+int		elf_getphnum(Elf *_elf, size_t *_dst);	/* Deprecated */
+Elf_Scn		*elf_getscn(Elf *_elf, size_t _index);
+int		elf_getshdrnum(Elf *_elf, size_t *_dst);
+int		elf_getshnum(Elf *_elf, size_t *_dst);	/* Deprecated */
+int		elf_getshdrstrndx(Elf *_elf, size_t *_dst);
+int		elf_getshstrndx(Elf *_elf, size_t *_dst); /* Deprecated */
+unsigned long	elf_hash(const char *_name);
+Elf_Kind	elf_kind(Elf *_elf);
+Elf		*elf_memory(char *_image, size_t _size);
+size_t		elf_ndxscn(Elf_Scn *_scn);
+Elf_Data	*elf_newdata(Elf_Scn *_scn);
+Elf_Scn		*elf_newscn(Elf *_elf);
+Elf_Scn		*elf_nextscn(Elf *_elf, Elf_Scn *_scn);
+Elf_Cmd		elf_next(Elf *_elf);
+Elf		*elf_open(int _fd);
+Elf		*elf_openmemory(char *_image, size_t _size);
+off_t		elf_rand(Elf *_elf, off_t _off);
+Elf_Data	*elf_rawdata(Elf_Scn *_scn, Elf_Data *_data);
+char		*elf_rawfile(Elf *_elf, size_t *_size);
+int		elf_setshstrndx(Elf *_elf, size_t _shnum);
+char		*elf_strptr(Elf *_elf, size_t _section, size_t _offset);
+off_t		elf_update(Elf *_elf, Elf_Cmd _cmd);
+unsigned int	elf_version(unsigned int _version);
+
+long		elf32_checksum(Elf *_elf);
+size_t		elf32_fsize(Elf_Type _type, size_t _count,
+			unsigned int _version);
+Elf32_Ehdr	*elf32_getehdr(Elf *_elf);
+Elf32_Phdr	*elf32_getphdr(Elf *_elf);
+Elf32_Shdr	*elf32_getshdr(Elf_Scn *_scn);
+Elf32_Ehdr	*elf32_newehdr(Elf *_elf);
+Elf32_Phdr	*elf32_newphdr(Elf *_elf, size_t _count);
+Elf_Data	*elf32_xlatetof(Elf_Data *_dst, const Elf_Data *_src,
+			unsigned int _enc);
+Elf_Data	*elf32_xlatetom(Elf_Data *_dst, const Elf_Data *_src,
+			unsigned int _enc);
+
+long		elf64_checksum(Elf *_elf);
+size_t		elf64_fsize(Elf_Type _type, size_t _count,
+			unsigned int _version);
+Elf64_Ehdr	*elf64_getehdr(Elf *_elf);
+Elf64_Phdr	*elf64_getphdr(Elf *_elf);
+Elf64_Shdr	*elf64_getshdr(Elf_Scn *_scn);
+Elf64_Ehdr	*elf64_newehdr(Elf *_elf);
+Elf64_Phdr	*elf64_newphdr(Elf *_elf, size_t _count);
+Elf_Data	*elf64_xlatetof(Elf_Data *_dst, const Elf_Data *_src,
+			unsigned int _enc);
+Elf_Data	*elf64_xlatetom(Elf_Data *_dst, const Elf_Data *_src,
+			unsigned int _enc);
+#ifdef __cplusplus
+}
+#endif
+
+#endif	/* _LIBELF_H_ */