1ebcad5720
not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
204 lines
8.0 KiB
C
204 lines
8.0 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 IA-64 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_IA_64
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#define ELF_MACHINE_OK(x) ((x) == EM_IA_64)
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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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int 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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* Values for e_flags.
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*/
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#define EF_IA_64_MASKOS 0x00ff000f
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#define EF_IA_64_ABI64 0x00000010
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#define EF_IA_64_REDUCEDFP 0x00000020
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#define EF_IA_64_CONS_GP 0x00000040
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#define EF_IA_64_NOFUNCDESC_CONS_GP 0x00000080
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#define EF_IA_64_ABSOLUTE 0x00000100
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#define EF_IA_64_ARCH 0xff000000
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/*
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* Section types.
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*/
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#define SHT_IA_64_EXT 0x70000000
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#define SHT_IA_64_UNWIND 0x70000001
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#define SHT_IA_64_LOPSREG 0x78000000
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#define SHT_IA_64_HIPSREG 0x7fffffff
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/*
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* Section attribute flags.
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*/
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#define SHF_IA_64_SHORT 0x10000000
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#define SHF_IA_64_NORECOV 0x20000000
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/*
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* Relocation types.
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*/
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/* Name Value Field Calculation */
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#define R_IA64_NONE 0 /* None */
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#define R_IA64_IMM14 0x21 /* immediate14 S + A */
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#define R_IA64_IMM22 0x22 /* immediate22 S + A */
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#define R_IA64_IMM64 0x23 /* immediate64 S + A */
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#define R_IA64_DIR32MSB 0x24 /* word32 MSB S + A */
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#define R_IA64_DIR32LSB 0x25 /* word32 LSB S + A */
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#define R_IA64_DIR64MSB 0x26 /* word64 MSB S + A */
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#define R_IA64_DIR64LSB 0x27 /* word64 LSB S + A */
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#define R_IA64_GPREL22 0x2a /* immediate22 @gprel(S + A) */
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#define R_IA64_GPREL64I 0x2b /* immediate64 @gprel(S + A) */
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#define R_IA64_GPREL64MSB 0x2e /* word64 MSB @gprel(S + A) */
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#define R_IA64_GPREL64LSB 0x2f /* word64 LSB @gprel(S + A) */
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#define R_IA64_LTOFF22 0x32 /* immediate22 @ltoff(S + A) */
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#define R_IA64_LTOFF64I 0x33 /* immediate64 @ltoff(S + A) */
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#define R_IA64_PLTOFF22 0x3a /* immediate22 @pltoff(S + A) */
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#define R_IA64_PLTOFF64I 0x3b /* immediate64 @pltoff(S + A) */
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#define R_IA64_PLTOFF64MSB 0x3e /* word64 MSB @pltoff(S + A) */
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#define R_IA64_PLTOFF64LSB 0x3f /* word64 LSB @pltoff(S + A) */
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#define R_IA64_FPTR64I 0x43 /* immediate64 @fptr(S + A) */
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#define R_IA64_FPTR32MSB 0x44 /* word32 MSB @fptr(S + A) */
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#define R_IA64_FPTR32LSB 0x45 /* word32 LSB @fptr(S + A) */
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#define R_IA64_FPTR64MSB 0x46 /* word64 MSB @fptr(S + A) */
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#define R_IA64_FPTR64LSB 0x47 /* word64 LSB @fptr(S + A) */
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#define R_IA64_PCREL21B 0x49 /* immediate21 form1 S + A - P */
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#define R_IA64_PCREL21M 0x4a /* immediate21 form2 S + A - P */
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#define R_IA64_PCREL21F 0x4b /* immediate21 form3 S + A - P */
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#define R_IA64_PCREL32MSB 0x4c /* word32 MSB S + A - P */
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#define R_IA64_PCREL32LSB 0x4d /* word32 LSB S + A - P */
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#define R_IA64_PCREL64MSB 0x4e /* word64 MSB S + A - P */
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#define R_IA64_PCREL64LSB 0x4f /* word64 LSB S + A - P */
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#define R_IA64_LTOFF_FPTR22 0x52 /* immediate22 @ltoff(@fptr(S + A)) */
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#define R_IA64_LTOFF_FPTR64I 0x53 /* immediate64 @ltoff(@fptr(S + A)) */
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#define R_IA64_LTOFF_FPTR32MSB 0x54 /* word32 MSB @ltoff(@fptr(S + A)) */
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#define R_IA64_LTOFF_FPTR32LSB 0x55 /* word32 LSB @ltoff(@fptr(S + A)) */
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#define R_IA64_LTOFF_FPTR64MSB 0x56 /* word64 MSB @ltoff(@fptr(S + A)) */
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#define R_IA64_LTOFF_FPTR64LSB 0x57 /* word64 LSB @ltoff(@fptr(S + A)) */
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#define R_IA64_SEGREL32MSB 0x5c /* word32 MSB @segrel(S + A) */
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#define R_IA64_SEGREL32LSB 0x5d /* word32 LSB @segrel(S + A) */
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#define R_IA64_SEGREL64MSB 0x5e /* word64 MSB @segrel(S + A) */
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#define R_IA64_SEGREL64LSB 0x5f /* word64 LSB @segrel(S + A) */
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#define R_IA64_SECREL32MSB 0x64 /* word32 MSB @secrel(S + A) */
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#define R_IA64_SECREL32LSB 0x65 /* word32 LSB @secrel(S + A) */
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#define R_IA64_SECREL64MSB 0x66 /* word64 MSB @secrel(S + A) */
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#define R_IA64_SECREL64LSB 0x67 /* word64 LSB @secrel(S + A) */
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#define R_IA64_REL32MSB 0x6c /* word32 MSB BD + A */
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#define R_IA64_REL32LSB 0x6d /* word32 LSB BD + A */
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#define R_IA64_REL64MSB 0x6e /* word64 MSB BD + A */
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#define R_IA64_REL64LSB 0x6f /* word64 LSB BD + A */
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#define R_IA64_LTV32MSB 0x74 /* word32 MSB S + A */
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#define R_IA64_LTV32LSB 0x75 /* word32 LSB S + A */
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#define R_IA64_LTV64MSB 0x76 /* word64 MSB S + A */
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#define R_IA64_LTV64LSB 0x77 /* word64 LSB S + A */
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#define R_IA64_IPLTMSB 0x80 /* function descriptor MSB special */
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#define R_IA64_IPLTLSB 0x81 /* function descriptor LSB speciaal */
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#define R_IA64_SUB 0x85 /* immediate64 A - S */
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#define R_IA64_LTOFF22X 0x86 /* immediate22 special */
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#define R_IA64_LDXMOV 0x87 /* immediate22 special */
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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_IA_64
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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 ia64 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 /* _KERNEL */
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#endif /* !_MACHINE_ELF_H_ */
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