664a31e496
is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
151 lines
5.3 KiB
C
151 lines
5.3 KiB
C
/*-
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* Copyright (c) 1996-1997 John D. Polstra.
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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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* $FreeBSD$
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*/
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#ifndef _MACHINE_ELF_H_
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#define _MACHINE_ELF_H_ 1
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/*
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* ELF definitions for the alpha architecture.
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*/
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#include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */
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#define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */
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#include <sys/elf_generic.h>
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#define ELF_ARCH EM_ALPHA
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#define ELF_MACHINE_OK(x) ((x) == EM_ALPHA)
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/*
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* Auxiliary vector entries for passing information to the interpreter.
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*
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* The i386 supplement to the SVR4 ABI specification names this "auxv_t",
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* but POSIX lays claim to all symbols ending with "_t".
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*/
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typedef struct { /* Auxiliary vector entry on initial stack */
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long a_type; /* Entry type. */
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union {
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long a_val; /* Integer value. */
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void *a_ptr; /* Address. */
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void (*a_fcn)(void); /* Function pointer (not used). */
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} a_un;
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} Elf64_Auxinfo;
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__ElfType(Auxinfo);
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/* Values for a_type. */
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#define AT_NULL 0 /* Terminates the vector. */
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#define AT_IGNORE 1 /* Ignored entry. */
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#define AT_EXECFD 2 /* File descriptor of program to load. */
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#define AT_PHDR 3 /* Program header of program already loaded. */
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#define AT_PHENT 4 /* Size of each program header entry. */
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#define AT_PHNUM 5 /* Number of program header entries. */
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#define AT_PAGESZ 6 /* Page size in bytes. */
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#define AT_BASE 7 /* Interpreter's base address. */
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#define AT_FLAGS 8 /* Flags (unused for i386). */
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#define AT_ENTRY 9 /* Where interpreter should transfer control. */
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/*
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* The following non-standard values are used for passing information
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* from John Polstra's testbed program to the dynamic linker. These
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* are expected to go away soon.
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*
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* Unfortunately, these overlap the Linux non-standard values, so they
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* must not be used in the same context.
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*/
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#define AT_BRK 10 /* Starting point for sbrk and brk. */
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#define AT_DEBUG 11 /* Debugging level. */
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/*
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* The following non-standard values are used in Linux ELF binaries.
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*/
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#define AT_NOTELF 10 /* Program is not ELF ?? */
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#define AT_UID 11 /* Real uid. */
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#define AT_EUID 12 /* Effective uid. */
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#define AT_GID 13 /* Real gid. */
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#define AT_EGID 14 /* Effective gid. */
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#define AT_COUNT 15 /* Count of defined aux entry types. */
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/*
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* Relocation types.
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*/
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#define R_ALPHA_NONE 0 /* No reloc */
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#define R_ALPHA_REFLONG 1 /* Direct 32 bit */
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#define R_ALPHA_REFQUAD 2 /* Direct 64 bit */
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#define R_ALPHA_GPREL32 3 /* GP relative 32 bit */
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#define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */
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#define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */
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#define R_ALPHA_GPDISP 6 /* Add displacement to GP */
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#define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */
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#define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */
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#define R_ALPHA_SREL16 9 /* PC relative 16 bit */
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#define R_ALPHA_SREL32 10 /* PC relative 32 bit */
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#define R_ALPHA_SREL64 11 /* PC relative 64 bit */
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#define R_ALPHA_OP_PUSH 12 /* OP stack push */
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#define R_ALPHA_OP_STORE 13 /* OP stack pop and store */
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#define R_ALPHA_OP_PSUB 14 /* OP stack subtract */
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#define R_ALPHA_OP_PRSHIFT 15 /* OP stack right shift */
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#define R_ALPHA_GPVALUE 16
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#define R_ALPHA_GPRELHIGH 17
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#define R_ALPHA_GPRELLOW 18
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#define R_ALPHA_IMMED_GP_16 19
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#define R_ALPHA_IMMED_GP_HI32 20
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#define R_ALPHA_IMMED_SCN_HI32 21
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#define R_ALPHA_IMMED_BR_HI32 22
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#define R_ALPHA_IMMED_LO32 23
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#define R_ALPHA_COPY 24 /* Copy symbol at runtime */
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#define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */
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#define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */
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#define R_ALPHA_RELATIVE 27 /* Adjust by program base */
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#define R_ALPHA_COUNT 28
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/* Define "machine" characteristics */
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#define ELF_TARG_CLASS ELFCLASS64
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#define ELF_TARG_DATA ELFDATA2LSB
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#define ELF_TARG_MACH EM_ALPHA
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#define ELF_TARG_VER 1
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#ifdef _KERNEL
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/*
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* On the Alpha we load the dynamic linker where a userland call
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* to mmap(0, ...) would put it. The rationale behind this
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* calculation is that it leaves room for the heap to grow to
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* its maximum allowed size.
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*/
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#define ELF_RTLD_ADDR(vmspace) \
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(round_page((vm_offset_t)(vmspace)->vm_daddr + MAXDSIZ))
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#endif
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#endif /* !_MACHINE_ELF_H_ */
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