elf.h

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#ifndef __PPC64_ELF_H
#define __PPC64_ELF_H

#include <asm/types.h>
#include <asm/ptrace.h>
#include <asm/cputable.h>

/* PowerPC relocations defined by the ABIs */
#define R_PPC_NONE		0
#define R_PPC_ADDR32		1	/* 32bit absolute address */
#define R_PPC_ADDR24		2	/* 26bit address, 2 bits ignored.  */
#define R_PPC_ADDR16		3	/* 16bit absolute address */
#define R_PPC_ADDR16_LO		4	/* lower 16bit of absolute address */
#define R_PPC_ADDR16_HI		5	/* high 16bit of absolute address */
#define R_PPC_ADDR16_HA		6	/* adjusted high 16bit */
#define R_PPC_ADDR14		7	/* 16bit address, 2 bits ignored */
#define R_PPC_ADDR14_BRTAKEN	8
#define R_PPC_ADDR14_BRNTAKEN	9
#define R_PPC_REL24		10	/* PC relative 26 bit */
#define R_PPC_REL14		11	/* PC relative 16 bit */
#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

/* PowerPC relocations defined for the TLS access ABI.  */
#define R_PPC_TLS		67 /* none	(sym+add)@tls */
#define R_PPC_DTPMOD32		68 /* word32	(sym+add)@dtpmod */
#define R_PPC_TPREL16		69 /* half16*	(sym+add)@tprel */
#define R_PPC_TPREL16_LO	70 /* half16	(sym+add)@tprel@l */
#define R_PPC_TPREL16_HI	71 /* half16	(sym+add)@tprel@h */
#define R_PPC_TPREL16_HA	72 /* half16	(sym+add)@tprel@ha */
#define R_PPC_TPREL32		73 /* word32	(sym+add)@tprel */
#define R_PPC_DTPREL16		74 /* half16*	(sym+add)@dtprel */
#define R_PPC_DTPREL16_LO	75 /* half16	(sym+add)@dtprel@l */
#define R_PPC_DTPREL16_HI	76 /* half16	(sym+add)@dtprel@h */
#define R_PPC_DTPREL16_HA	77 /* half16	(sym+add)@dtprel@ha */
#define R_PPC_DTPREL32		78 /* word32	(sym+add)@dtprel */
#define R_PPC_GOT_TLSGD16	79 /* half16*	(sym+add)@got@tlsgd */
#define R_PPC_GOT_TLSGD16_LO	80 /* half16	(sym+add)@got@tlsgd@l */
#define R_PPC_GOT_TLSGD16_HI	81 /* half16	(sym+add)@got@tlsgd@h */
#define R_PPC_GOT_TLSGD16_HA	82 /* half16	(sym+add)@got@tlsgd@ha */
#define R_PPC_GOT_TLSLD16	83 /* half16*	(sym+add)@got@tlsld */
#define R_PPC_GOT_TLSLD16_LO	84 /* half16	(sym+add)@got@tlsld@l */
#define R_PPC_GOT_TLSLD16_HI	85 /* half16	(sym+add)@got@tlsld@h */
#define R_PPC_GOT_TLSLD16_HA	86 /* half16	(sym+add)@got@tlsld@ha */
#define R_PPC_GOT_TPREL16	87 /* half16*	(sym+add)@got@tprel */
#define R_PPC_GOT_TPREL16_LO	88 /* half16	(sym+add)@got@tprel@l */
#define R_PPC_GOT_TPREL16_HI	89 /* half16	(sym+add)@got@tprel@h */
#define R_PPC_GOT_TPREL16_HA	90 /* half16	(sym+add)@got@tprel@ha */
#define R_PPC_GOT_DTPREL16	91 /* half16*	(sym+add)@got@dtprel */
#define R_PPC_GOT_DTPREL16_LO	92 /* half16*	(sym+add)@got@dtprel@l */
#define R_PPC_GOT_DTPREL16_HI	93 /* half16*	(sym+add)@got@dtprel@h */
#define R_PPC_GOT_DTPREL16_HA	94 /* half16*	(sym+add)@got@dtprel@ha */

/* Keep this the last entry.  */
#define R_PPC_NUM		95

/*
 * ELF register definitions..
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 */
#include <asm/ptrace.h>

#define ELF_NGREG	48	/* includes nip, msr, lr, etc. */
#define ELF_NFPREG	33	/* includes fpscr */
#define ELF_NVRREG32	33	/* includes vscr & vrsave stuffed together */
#define ELF_NVRREG	34	/* includes vscr & vrsave in split vectors */

typedef unsigned long elf_greg_t64;
typedef elf_greg_t64 elf_gregset_t64[ELF_NGREG];

typedef unsigned int elf_greg_t32;
typedef elf_greg_t32 elf_gregset_t32[ELF_NGREG];

/*
 * These are used to set parameters in the core dumps.
 */
#ifndef ELF_ARCH
# define ELF_ARCH	EM_PPC64
# define ELF_CLASS	ELFCLASS64
# define ELF_DATA	ELFDATA2MSB
  typedef elf_greg_t64 elf_greg_t;
  typedef elf_gregset_t64 elf_gregset_t;
# define elf_addr_t unsigned long
#else
  /* Assumption: ELF_ARCH == EM_PPC and ELF_CLASS == ELFCLASS32 */
  typedef elf_greg_t32 elf_greg_t;
  typedef elf_gregset_t32 elf_gregset_t;
# define elf_addr_t u32
#endif

typedef double elf_fpreg_t;
typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];

/* Altivec registers */
/*
 * The entries with indexes 0-31 contain the corresponding vector registers. 
 * The entry with index 32 contains the vscr as the last word (offset 12) 
 * within the quadword.  This allows the vscr to be stored as either a 
 * quadword (since it must be copied via a vector register to/from storage) 
 * or as a word.  The entry with index 33 contains the vrsave as the first 
 * word (offset 0) within the quadword.
 *
 * This definition of the VMX state is compatible with the current PPC32 
 * ptrace interface.  This allows signal handling and ptrace to use the same 
 * structures.  This also simplifies the implementation of a bi-arch 
 * (combined (32- and 64-bit) gdb.
 *
 * Note that it's _not_ compatible with 32 bits ucontext which stuffs the
 * vrsave along with vscr and so only uses 33 vectors for the register set
 */
typedef __vector128 elf_vrreg_t;
typedef elf_vrreg_t elf_vrregset_t[ELF_NVRREG];
typedef elf_vrreg_t elf_vrregset_t32[ELF_NVRREG32];

/*
 * This is used to ensure we don't load something for the wrong architecture.
 */
#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH)

#define USE_ELF_CORE_DUMP
#define ELF_EXEC_PAGESIZE	4096

/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
   use of this is to invoke "./ld.so someprog" to test out a new version of
   the loader.  We need to make sure that it is out of the way of the program
   that it will "exec", and that there is sufficient room for the brk.  */

#define ELF_ET_DYN_BASE         (0x08000000)

#ifdef __KERNEL__

/* Common routine for both 32-bit and 64-bit processes */
static inline void ppc64_elf_core_copy_regs(elf_gregset_t elf_regs,
					    struct pt_regs *regs)
{
	int i;
	int gprs = sizeof(struct pt_regs)/sizeof(elf_greg_t64);

	if (gprs > ELF_NGREG)
		gprs = ELF_NGREG;

	for (i=0; i < gprs; i++)
		elf_regs[i] = (elf_greg_t)((elf_greg_t64 *)regs)[i];
}
#define ELF_CORE_COPY_REGS(gregs, regs) ppc64_elf_core_copy_regs(gregs, regs);

static inline int dump_task_regs(struct task_struct *tsk,
				 elf_gregset_t *elf_regs)
{
	struct pt_regs *regs = tsk->thread.regs;
	if (regs)
		ppc64_elf_core_copy_regs(*elf_regs, regs);

	return 1;
}
#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)

extern int dump_task_fpu(struct task_struct *, elf_fpregset_t *); 
#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)

/* XXX Should we define the XFPREGS using altivec ??? */

#endif