Get rid of GNU libelf and its autoconf nastiness and replace

it with FreeBSD's implementation

--HG--
extra : convert_revision : ef9c4551b9a6b54b76a89f286ff9804c55790621

1 files changed, 245 insertions, 0 deletions

diff --git a/ext/libelf/elf32.h b/ext/libelf/elf32.h
new file mode 100644
index 000000000..d62de5039
--- /dev/null
+++ b/ext/libelf/elf32.h
@@ -0,0 +1,245 @@
+/*-
+ * Copyright (c) 1996-1998 John D. Polstra.
+ * 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/sys/sys/elf32.h,v 1.13 2006/10/17 05:43:30 jkoshy Exp $
+ */
+
+#ifndef _SYS_ELF32_H_
+#define _SYS_ELF32_H_ 1
+
+#include "elf_common.h"
+
+/*
+ * ELF definitions common to all 32-bit architectures.
+ */
+
+typedef uint32_t	Elf32_Addr;
+typedef uint16_t	Elf32_Half;
+typedef uint32_t	Elf32_Off;
+typedef int32_t		Elf32_Sword;
+typedef uint32_t	Elf32_Word;
+typedef uint64_t	Elf32_Lword;
+
+typedef Elf32_Word	Elf32_Hashelt;
+
+/* Non-standard class-dependent datatype used for abstraction. */
+typedef Elf32_Word	Elf32_Size;
+typedef Elf32_Sword	Elf32_Ssize;
+
+/*
+ * ELF header.
+ */
+
+typedef struct {
+        unsigned char	e_ident[EI_NIDENT];	/* File identification. */
+        Elf32_Half	e_type;		/* File type. */
+        Elf32_Half	e_machine;	/* Machine architecture. */
+        Elf32_Word	e_version;	/* ELF format version. */
+        Elf32_Addr	e_entry;	/* Entry point. */
+        Elf32_Off	e_phoff;	/* Program header file offset. */
+        Elf32_Off	e_shoff;	/* Section header file offset. */
+        Elf32_Word	e_flags;	/* Architecture-specific flags. */
+        Elf32_Half	e_ehsize;	/* Size of ELF header in bytes. */
+        Elf32_Half	e_phentsize;	/* Size of program header entry. */
+        Elf32_Half	e_phnum;	/* Number of program header entries. */
+        Elf32_Half	e_shentsize;	/* Size of section header entry. */
+        Elf32_Half	e_shnum;	/* Number of section header entries. */
+        Elf32_Half	e_shstrndx;	/* Section name strings section. */
+} Elf32_Ehdr;
+
+/*
+ * Section header.
+ */
+
+typedef struct {
+        Elf32_Word	sh_name;	/* Section name (index into the
+                                           section header string table). */
+        Elf32_Word	sh_type;	/* Section type. */
+        Elf32_Word	sh_flags;	/* Section flags. */
+        Elf32_Addr	sh_addr;	/* Address in memory image. */
+        Elf32_Off	sh_offset;	/* Offset in file. */
+        Elf32_Word	sh_size;	/* Size in bytes. */
+        Elf32_Word	sh_link;	/* Index of a related section. */
+        Elf32_Word	sh_info;	/* Depends on section type. */
+        Elf32_Word	sh_addralign;	/* Alignment in bytes. */
+        Elf32_Word	sh_entsize;	/* Size of each entry in section. */
+} Elf32_Shdr;
+
+/*
+ * Program header.
+ */
+
+typedef struct {
+        Elf32_Word	p_type;		/* Entry type. */
+        Elf32_Off	p_offset;	/* File offset of contents. */
+        Elf32_Addr	p_vaddr;	/* Virtual address in memory image. */
+        Elf32_Addr	p_paddr;	/* Physical address (not used). */
+        Elf32_Word	p_filesz;	/* Size of contents in file. */
+        Elf32_Word	p_memsz;	/* Size of contents in memory. */
+        Elf32_Word	p_flags;	/* Access permission flags. */
+        Elf32_Word	p_align;	/* Alignment in memory and file. */
+} Elf32_Phdr;
+
+/*
+ * Dynamic structure.  The ".dynamic" section contains an array of them.
+ */
+
+typedef struct {
+        Elf32_Sword	d_tag;		/* Entry type. */
+        union {
+                Elf32_Word	d_val;	/* Integer value. */
+                Elf32_Addr	d_ptr;	/* Address value. */
+        } d_un;
+} Elf32_Dyn;
+
+/*
+ * Relocation entries.
+ */
+
+/* Relocations that don't need an addend field. */
+typedef struct {
+        Elf32_Addr	r_offset;	/* Location to be relocated. */
+        Elf32_Word	r_info;		/* Relocation type and symbol index. */
+} Elf32_Rel;
+
+/* Relocations that need an addend field. */
+typedef struct {
+        Elf32_Addr	r_offset;	/* Location to be relocated. */
+        Elf32_Word	r_info;		/* Relocation type and symbol index. */
+        Elf32_Sword	r_addend;	/* Addend. */
+} Elf32_Rela;
+
+/* Macros for accessing the fields of r_info. */
+#define ELF32_R_SYM(info)	((info) >> 8)
+#define ELF32_R_TYPE(info)	((unsigned char)(info))
+
+/* Macro for constructing r_info from field values. */
+#define ELF32_R_INFO(sym, type)	(((sym) << 8) + (unsigned char)(type))
+
+/*
+ *	Note entry header
+ */
+typedef Elf_Note Elf32_Nhdr;
+
+/*
+ *	Move entry
+ */
+typedef struct {
+        Elf32_Lword	m_value;	/* symbol value */
+        Elf32_Word 	m_info;		/* size + index */
+        Elf32_Word	m_poffset;	/* symbol offset */
+        Elf32_Half	m_repeat;	/* repeat count */
+        Elf32_Half	m_stride;	/* stride info */
+} Elf32_Move;
+
+/*
+ *	The macros compose and decompose values for Move.r_info
+ *
+ *	sym = ELF32_M_SYM(M.m_info)
+ *	size = ELF32_M_SIZE(M.m_info)
+ *	M.m_info = ELF32_M_INFO(sym, size)
+ */
+#define	ELF32_M_SYM(info)	((info)>>8)
+#define	ELF32_M_SIZE(info)	((unsigned char)(info))
+#define	ELF32_M_INFO(sym, size)	(((sym)<<8)+(unsigned char)(size))
+
+/*
+ *	Hardware/Software capabilities entry
+ */
+typedef struct {
+        Elf32_Word	c_tag;		/* how to interpret value */
+        union {
+                Elf32_Word	c_val;
+                Elf32_Addr	c_ptr;
+        } c_un;
+} Elf32_Cap;
+
+/*
+ * Symbol table entries.
+ */
+
+typedef struct {
+        Elf32_Word	st_name;	/* String table index of name. */
+        Elf32_Addr	st_value;	/* Symbol value. */
+        Elf32_Word	st_size;	/* Size of associated object. */
+        unsigned char	st_info;	/* Type and binding information. */
+        unsigned char	st_other;	/* Reserved (not used). */
+        Elf32_Half	st_shndx;	/* Section index of symbol. */
+} Elf32_Sym;
+
+/* Macros for accessing the fields of st_info. */
+#define ELF32_ST_BIND(info)		((info) >> 4)
+#define ELF32_ST_TYPE(info)		((info) & 0xf)
+
+/* Macro for constructing st_info from field values. */
+#define ELF32_ST_INFO(bind, type)	(((bind) << 4) + ((type) & 0xf))
+
+/* Macro for accessing the fields of st_other. */
+#define ELF32_ST_VISIBILITY(oth)	((oth) & 0x3)
+
+/* Structures used by Sun & GNU symbol versioning. */
+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
+{
+        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 Elf32_Half Elf32_Versym;
+
+typedef struct {
+        Elf32_Half	si_boundto;	/* direct bindings - symbol bound to */
+        Elf32_Half	si_flags;	/* per symbol flags */
+} Elf32_Syminfo;
+
+#endif /* !_SYS_ELF32_H_ */