Fill out the ELF header files to make them more or less complete.

Fix a macro name that was misspelled both in brandelf.c and
imgact_elf.h.

1 files changed, 268 insertions, 0 deletions

diff --git a/sys/sys/elf32.h b/sys/sys/elf32.h
new file mode 100644
index 000000000000..7a6aed50563e
--- /dev/null
+++ b/sys/sys/elf32.h
@@ -0,0 +1,268 @@
+/*-
+ * Copyright (c) 1996-1997 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.
+ *
+ *      $Id$
+ */
+
+#ifndef _SYS_ELF32_H_
+#define _SYS_ELF32_H_ 1
+
+/*
+ * ELF definitions common to all 32-bit architectures.
+ */
+
+typedef u_int32_t	Elf32_Addr;
+typedef u_int16_t	Elf32_Half;
+typedef u_int32_t	Elf32_Off;
+typedef int32_t		Elf32_Sword;
+typedef u_int32_t	Elf32_Word;
+
+/*
+ * ELF header.
+ */
+
+#define EI_NIDENT	16		/* Size of e_ident array. */
+
+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;
+
+/* Indexes into the e_ident array. */
+#define EI_MAG0		0	/* Magic number, byte 0. */
+#define EI_MAG1		1	/* Magic number, byte 1. */
+#define EI_MAG2		2	/* Magic number, byte 2. */
+#define EI_MAG3		3	/* Magic number, byte 3. */
+#define EI_CLASS	4	/* Class of machine. */
+#define EI_DATA		5	/* Data format. */
+#define EI_VERSION	6	/* ELF format version. */
+#define EI_PAD		7	/* Start of padding (per SVR4 ABI). */
+#define EI_BRAND	8	/* Start of architecture identification. */
+
+/* Values for the magic number bytes. */
+#define ELFMAG0		0x7f
+#define ELFMAG1		'E'
+#define ELFMAG2		'L'
+#define ELFMAG3		'F'
+
+/* Values for e_ident[EI_VERSION] and e_version. */
+#define EV_NONE		0
+#define EV_CURRENT	1
+
+/* Values for e_ident[EI_CLASS]. */
+#define ELFCLASSNONE	0	/* Unknown class. */
+#define ELFCLASS32	1	/* 32-bit architecture. */
+#define ELFCLASS64	2	/* 64-bit architecture. */
+
+/* Values for e_ident[EI_DATA]. */
+#define ELFDATANONE	0	/* Unknown data format. */
+#define ELFDATA2LSB	1	/* 2's complement little-endian. */
+#define ELFDATA2MSB	2	/* 2's complement big-endian. */
+
+/* Values for e_type. */
+#define ET_NONE		0	/* Unknown type. */
+#define ET_REL		1	/* Relocatable. */
+#define ET_EXEC		2	/* Executable. */
+#define ET_DYN		3	/* Shared object. */
+#define ET_CORE		4	/* Core file. */
+
+/* Values for e_machine. */
+#define EM_NONE		0	/* Unknown machine. */
+#define EM_M32		1	/* AT&T WE32100. */
+#define EM_SPARC	2	/* Sun SPARC. */
+#define EM_386		3	/* Intel i386. */
+#define EM_68K		4	/* Motorola 68000. */
+#define EM_88K		5	/* Motorola 88000. */
+#define EM_486		6	/* Intel i486. */
+#define EM_860		7	/* Intel i860. */
+
+/*
+ * 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;
+
+/* Special section indexes. */
+#define SHN_UNDEF	     0		/* Undefined, missing, irrelevant. */
+#define SHN_LORESERVE	0xff00		/* First of reserved range. */
+#define SHN_LOPROC	0xff00		/* First processor-specific. */
+#define SHN_HIPROC	0xff1f		/* Last processor-specific. */
+#define SHN_ABS		0xfff1		/* Absolute values. */
+#define SHN_COMMON	0xfff2		/* Common data. */
+#define SHN_HIRESERVE	0xffff		/* Last of reserved range. */
+
+/*
+ * 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;
+
+/* Values for p_type. */
+#define PT_NULL		0	/* Unused entry. */
+#define PT_LOAD		1	/* Loadable segment. */
+#define PT_DYNAMIC	2	/* Dynamic linking information segment. */
+#define PT_INTERP	3	/* Pathname of interpreter. */
+#define PT_NOTE		4	/* Auxiliary information. */
+#define PT_SHLIB	5	/* Reserved (not used). */
+#define PT_PHDR		6	/* Location of program header itself. */
+
+#define PT_COUNT	7	/* Number of defined p_type values. */
+
+/* Values for p_flags. */
+#define PF_X		0x1	/* Executable. */
+#define PF_W		0x2	/* Writable. */
+#define PF_R		0x4	/* Readable. */
+
+/*
+ * 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;
+
+/* Values for d_tag. */
+#define DT_NULL		0	/* Terminating entry. */
+#define DT_NEEDED	1	/* String table offset of a needed shared
+				   library. */
+#define DT_PLTRELSZ	2	/* Total size in bytes of PLT relocations. */
+#define DT_PLTGOT	3	/* Processor-dependent address. */
+#define DT_HASH		4	/* Address of symbol hash table. */
+#define DT_STRTAB	5	/* Address of string table. */
+#define DT_SYMTAB	6	/* Address of symbol table. */
+#define DT_RELA		7	/* Address of Elf32_Rela relocations. */
+#define DT_RELASZ	8	/* Total size of Elf32_Rela relocations. */
+#define DT_RELAENT	9	/* Size of each Elf32_Rela relocation entry. */
+#define DT_STRSZ	10	/* Size of string table. */
+#define DT_SYMENT	11	/* Size of each symbol table entry. */
+#define DT_INIT		12	/* Address of initialization function. */
+#define DT_FINI		13	/* Address of finalization function. */
+#define DT_SONAME	14	/* String table offset of shared object
+				   name. */
+#define DT_RPATH	15	/* String table offset of library path. */
+#define DT_SYMBOLIC	16	/* Indicates "symbolic" linking. */
+#define DT_REL		17	/* Address of Elf32_Rel relocations. */
+#define DT_RELSZ	18	/* Total size of Elf32_Rel relocations. */
+#define DT_RELENT	19	/* Size of each Elf32_Rel relocation. */
+#define DT_PLTREL	20	/* Type of relocation used for PLT. */
+#define DT_DEBUG	21	/* Reserved (not used). */
+#define DT_TEXTREL	22	/* Indicates there may be relocations in
+				   non-writable segments. */
+#define DT_JMPREL	23	/* Address of PLT relocations. */
+
+#define DT_COUNT	24	/* Number of defined d_tag values. */
+
+/*
+ * 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))
+
+/*
+ * 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))
+
+/* Symbol types. */
+#define STT_NOTYPE	0	/* Unspecified type. */
+#define STT_OBJECT	1	/* Data object. */
+#define STT_FUNC	2	/* Function. */
+#define STT_SECTION	3	/* Section. */
+#define STT_FILE	4	/* Source file. */
+
+/* Special symbol table indexes. */
+#define STN_UNDEF	0	/* Undefined symbol index. */
+
+#endif /* !_SYS_ELF32_H_ */