7e5102989e
dynamic symbol table buckets and chains. The sparc64 toolchain uses 32 bit .hash entries, unlike other 64 bits architectures (alpha), which use 64 bit entries. Discussed with: dfr, jdp
185 lines
5.8 KiB
C
185 lines
5.8 KiB
C
/*-
|
|
* Copyright (c) 2001 David E. O'Brien
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_ELF_H_
|
|
#define _MACHINE_ELF_H_ 1
|
|
|
|
/*
|
|
* EABI ELF definitions for the PowerPC architecture.
|
|
* See "PowerPC Embedded Application Binary Interface, 32-Bit Impliementation"
|
|
* [ppc-eabi-1995-01.pdf] for details.
|
|
*/
|
|
|
|
#include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
|
|
|
|
#define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */
|
|
#include <sys/elf_generic.h>
|
|
|
|
#define ELF_ARCH EM_PPC
|
|
|
|
#define ELF_MACHINE_OK(x) ((x) == EM_PPC)
|
|
|
|
/*
|
|
* Auxiliary vector entries for passing information to the interpreter.
|
|
*
|
|
* The PowerPC supplement to the SVR4 ABI specification names this "auxv_t",
|
|
* but POSIX lays claim to all symbols ending with "_t".
|
|
*/
|
|
|
|
typedef struct { /* Auxiliary vector entry on initial stack */
|
|
int a_type; /* Entry type. */
|
|
union {
|
|
long a_val; /* Integer value. */
|
|
void *a_ptr; /* Address. */
|
|
void (*a_fcn)(void); /* Function pointer (not used). */
|
|
} a_un;
|
|
} Elf32_Auxinfo;
|
|
|
|
__ElfType(Auxinfo);
|
|
|
|
/*
|
|
* Types of dynamic symbol hash table bucket and chain elements.
|
|
*
|
|
* This is inconsistent among 64 bit architectures, so a machine dependent
|
|
* typedef is required.
|
|
*/
|
|
|
|
typedef Elf32_Off Elf32_Hashelt;
|
|
|
|
__ElfType(Hashelt);
|
|
|
|
/* Values for a_type. */
|
|
#define AT_NULL 0 /* Terminates the vector. */
|
|
#define AT_IGNORE 1 /* Ignored entry. */
|
|
#define AT_EXECFD 2 /* File descriptor of program to load. */
|
|
#define AT_PHDR 3 /* Program header of program already loaded. */
|
|
#define AT_PHENT 4 /* Size of each program header entry. */
|
|
#define AT_PHNUM 5 /* Number of program header entries. */
|
|
#define AT_PAGESZ 6 /* Page size in bytes. */
|
|
#define AT_BASE 7 /* Interpreter's base address. */
|
|
#define AT_FLAGS 8 /* Flags (unused for PowerPC). */
|
|
#define AT_ENTRY 9 /* Where interpreter should transfer control. */
|
|
#define AT_DCACHEBSIZE 10 /* Data cache block size for the processor. */
|
|
#define AT_ICACHEBSIZE 11 /* Instruction cache block size for the uP. */
|
|
#define AT_UCACHEBSIZE 12 /* Cache block size, or `0' if cache not unified. */
|
|
|
|
#define AT_COUNT 13 /* Count of defined aux entry types. */
|
|
|
|
/* Used in John Polstra's testbed stuff. */
|
|
#define AT_DEBUG 14 /* Debugging level. */
|
|
|
|
/*
|
|
* Relocation types.
|
|
*/
|
|
|
|
#define R_PPC_NONE 0 /* No relocation. */
|
|
#define R_PPC_ADDR32 1
|
|
#define R_PPC_ADDR24 2
|
|
#define R_PPC_ADDR16 3
|
|
#define R_PPC_ADDR16_LO 4
|
|
#define R_PPC_ADDR16_HI 5
|
|
#define R_PPC_ADDR16_HA 6
|
|
#define R_PPC_ADDR14 7
|
|
#define R_PPC_ADDR14_BRTAKEN 8
|
|
#define R_PPC_ADDR14_BRNTAKEN 9
|
|
#define R_PPC_REL24 10
|
|
#define R_PPC_REL14 11
|
|
#define R_PPC_REL14_BRTAKEN 12
|
|
#define R_PPC_REL14_BRNTAKEN 13
|
|
#define R_PPC_GOT16 14
|
|
#define R_PPC_GOT16_LO 15
|
|
#define R_PPC_GOT16_HI 16
|
|
#define R_PPC_GOT16_HA 17
|
|
#define R_PPC_PLTREL24 18
|
|
#define R_PPC_COPY 19
|
|
#define R_PPC_GLOB_DAT 20
|
|
#define R_PPC_JMP_SLOT 21
|
|
#define R_PPC_RELATIVE 22
|
|
#define R_PPC_LOCAL24PC 23
|
|
#define R_PPC_UADDR32 24
|
|
#define R_PPC_UADDR16 25
|
|
#define R_PPC_REL32 26
|
|
#define R_PPC_PLT32 27
|
|
#define R_PPC_PLTREL32 28
|
|
#define R_PPC_PLT16_LO 29
|
|
#define R_PPC_PLT16_HI 30
|
|
#define R_PPC_PLT16_HA 31
|
|
#define R_PPC_SDAREL16 32
|
|
#define R_PPC_SECTOFF 33
|
|
#define R_PPC_SECTOFF_LO 34
|
|
#define R_PPC_SECTOFF_HI 35
|
|
#define R_PPC_SECTOFF_HA 36
|
|
|
|
#define R_PPC_COUNT 37 /* Count of defined relocation types. */
|
|
|
|
/*
|
|
* The remaining relocs are from the Embedded ELF ABI, and are not in the
|
|
* SVR4 ELF ABI.
|
|
*/
|
|
|
|
#define R_PPC_EMB_NADDR32 101
|
|
#define R_PPC_EMB_NADDR16 102
|
|
#define R_PPC_EMB_NADDR16_LO 103
|
|
#define R_PPC_EMB_NADDR16_HI 104
|
|
#define R_PPC_EMB_NADDR16_HA 105
|
|
#define R_PPC_EMB_SDAI16 106
|
|
#define R_PPC_EMB_SDA2I16 107
|
|
#define R_PPC_EMB_SDA2REL 108
|
|
#define R_PPC_EMB_SDA21 109
|
|
#define R_PPC_EMB_MRKREF 110
|
|
#define R_PPC_EMB_RELSEC16 111
|
|
#define R_PPC_EMB_RELST_LO 112
|
|
#define R_PPC_EMB_RELST_HI 113
|
|
#define R_PPC_EMB_RELST_HA 114
|
|
#define R_PPC_EMB_BIT_FLD 115
|
|
#define R_PPC_EMB_RELSDA 116
|
|
|
|
/* Count of defined relocation types. */
|
|
#define R_PPC_EMB_COUNT (R_PPC_EMB_RELSDA - R_PPC_EMB_NADDR32 + 1)
|
|
|
|
/* Define "machine" characteristics */
|
|
#define ELF_TARG_CLASS ELFCLASS32
|
|
#define ELF_TARG_DATA ELFDATA2MSB
|
|
#define ELF_TARG_MACH EM_PPC
|
|
#define ELF_TARG_VER 1
|
|
|
|
#ifdef _KERNEL
|
|
|
|
/*
|
|
* On the PowerPC we load the dynamic linker where a userland call
|
|
* to mmap(0, ...) would put it. The rationale behind this
|
|
* calculation is that it leaves room for the heap to grow to
|
|
* its maximum allowed size.
|
|
*/
|
|
#define ELF_RTLD_ADDR(vmspace) \
|
|
(round_page((vm_offset_t)(vmspace)->vm_daddr + MAXDSIZ))
|
|
|
|
#endif /* _KERNEL */
|
|
#endif /* !_MACHINE_ELF_H_ */
|