138 lines
5.8 KiB
C
138 lines
5.8 KiB
C
/* $NetBSD: elf.h,v 1.2 1995/03/28 18:19:14 jtc Exp $ */
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/*
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* Copyright (c) 1994 Ted Lemon
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#ifndef __MACHINE_ELF_H__
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#define __MACHINE_ELF_H__
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/* ELF executable header... */
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struct ehdr {
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char elf_magic [4]; /* Elf magic number... */
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unsigned long magic [3]; /* Magic number... */
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unsigned short type; /* Object file type... */
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unsigned short machine; /* Machine ID... */
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unsigned long version; /* File format version... */
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unsigned long entry; /* Entry point... */
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unsigned long phoff; /* Program header table offset... */
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unsigned long shoff; /* Section header table offset... */
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unsigned long flags; /* Processor-specific flags... */
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unsigned short ehsize; /* Elf header size in bytes... */
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unsigned short phsize; /* Program header size... */
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unsigned short phcount; /* Program header count... */
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unsigned short shsize; /* Section header size... */
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unsigned short shcount; /* Section header count... */
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unsigned short shstrndx; /* Section header string table index... */
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};
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/* Program header... */
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struct phdr {
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unsigned long type; /* Segment type... */
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unsigned long offset; /* File offset... */
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unsigned long vaddr; /* Virtual address... */
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unsigned long paddr; /* Physical address... */
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unsigned long filesz; /* Size of segment in file... */
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unsigned long memsz; /* Size of segment in memory... */
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unsigned long flags; /* Segment flags... */
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unsigned long align; /* Alighment, file and memory... */
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};
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/* Section header... */
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struct shdr {
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unsigned long name; /* Offset into string table of section name */
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unsigned long type; /* Type of section... */
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unsigned long flags; /* Section flags... */
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unsigned long addr; /* Section virtual address at execution... */
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unsigned long offset; /* Section file offset... */
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unsigned long size; /* Section size... */
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unsigned long link; /* Link to another section... */
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unsigned long info; /* Additional section info... */
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unsigned long align; /* Section alignment... */
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unsigned long esize; /* Entry size if section holds table... */
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};
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/* Symbol table entry... */
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struct sym {
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unsigned long name; /* Index into strtab of symbol name. */
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unsigned long value; /* Section offset, virt addr or common align. */
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unsigned long size; /* Size of object referenced. */
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unsigned type : 4; /* Symbol type (e.g., function, data)... */
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unsigned binding : 4; /* Symbol binding (e.g., global, local)... */
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unsigned char other; /* Unused. */
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unsigned short shndx; /* Section containing symbol. */
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};
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/* Values for program header type field */
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#define PT_NULL 0 /* Program header table entry unused */
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#define PT_LOAD 1 /* Loadable program segment */
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#define PT_DYNAMIC 2 /* Dynamic linking information */
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#define PT_INTERP 3 /* Program interpreter */
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#define PT_NOTE 4 /* Auxiliary information */
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#define PT_SHLIB 5 /* Reserved, unspecified semantics */
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#define PT_PHDR 6 /* Entry for header table itself */
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#define PT_LOPROC 0x70000000 /* Processor-specific */
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#define PT_HIPROC 0x7FFFFFFF /* Processor-specific */
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#define PT_MIPS_REGINFO PT_LOPROC /* Mips reginfo section... */
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/* Program segment permissions, in program header flags field */
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#define PF_X (1 << 0) /* Segment is executable */
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#define PF_W (1 << 1) /* Segment is writable */
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#define PF_R (1 << 2) /* Segment is readable */
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#define PF_MASKPROC 0xF0000000 /* Processor-specific reserved bits */
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/* Reserved section indices... */
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#define SHN_UNDEF 0
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#define SHN_ABS 0xfff1
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#define SHN_COMMON 0xfff2
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#define SHN_MIPS_ACOMMON 0xfff0
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/* Symbol bindings... */
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#define STB_LOCAL 0
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#define STB_GLOBAL 1
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#define STB_WEAK 2
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/* Symbol types... */
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#define STT_NOTYPE 0
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#define STT_OBJECT 1
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#define STT_FUNC 2
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#define STT_SECTION 3
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#define STT_FILE 4
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#define ELF_HDR_SIZE (sizeof (struct ehdr))
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#ifdef _KERNEL
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int pmax_elf_makecmds __P((struct proc *, struct exec_package *));
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#endif /* _KERNEL */
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#endif /* __MACHINE_ELF_H__ */
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