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elf.h

#ifndef __ASMARM_ELF_H
#define __ASMARM_ELF_H

#include <asm/hwcap.h>

/*
 * ELF register definitions..
 */
#include <asm/ptrace.h>
#include <asm/user.h>

typedef unsigned long elf_greg_t;
typedef unsigned long elf_freg_t[3];

#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];

typedef struct user_fp elf_fpregset_t;

#define EM_ARM    40

#define EF_ARM_EABI_MASK      0xff000000
#define EF_ARM_EABI_UNKNOWN   0x00000000
#define EF_ARM_EABI_VER1      0x01000000
#define EF_ARM_EABI_VER2      0x02000000
#define EF_ARM_EABI_VER3      0x03000000
#define EF_ARM_EABI_VER4      0x04000000
#define EF_ARM_EABI_VER5      0x05000000

#define EF_ARM_BE8            0x00800000  /* ABI 4,5 */
#define EF_ARM_LE8            0x00400000  /* ABI 4,5 */
#define EF_ARM_MAVERICK_FLOAT 0x00000800  /* ABI 0 */
#define EF_ARM_VFP_FLOAT      0x00000400  /* ABI 0 */
#define EF_ARM_SOFT_FLOAT     0x00000200  /* ABI 0 */
#define EF_ARM_OLD_ABI        0x00000100  /* ABI 0 */
#define EF_ARM_NEW_ABI        0x00000080  /* ABI 0 */
#define EF_ARM_ALIGN8         0x00000040  /* ABI 0 */
#define EF_ARM_PIC            0x00000020  /* ABI 0 */
#define EF_ARM_MAPSYMSFIRST   0x00000010  /* ABI 2 */
#define EF_ARM_APCS_FLOAT     0x00000010  /* ABI 0, floats in fp regs */
#define EF_ARM_DYNSYMSUSESEGIDX     0x00000008  /* ABI 2 */
#define EF_ARM_APCS_26        0x00000008  /* ABI 0 */
#define EF_ARM_SYMSARESORTED  0x00000004  /* ABI 1,2 */
#define EF_ARM_INTERWORK      0x00000004  /* ABI 0 */
#define EF_ARM_HASENTRY       0x00000002  /* All */
#define EF_ARM_RELEXEC        0x00000001  /* All */

#define R_ARM_NONE            0
#define R_ARM_PC24            1
#define R_ARM_ABS32           2
#define R_ARM_CALL            28
#define R_ARM_JUMP24          29
#define R_ARM_V4BX            40
#define R_ARM_PREL31          42
#define R_ARM_MOVW_ABS_NC     43
#define R_ARM_MOVT_ABS        44

/*
 * These are used to set parameters in the core dumps.
 */
#define ELF_CLASS ELFCLASS32
#ifdef __ARMEB__
#define ELF_DATA  ELFDATA2MSB
#else
#define ELF_DATA  ELFDATA2LSB
#endif
#define ELF_ARCH  EM_ARM

/*
 * This yields a string that ld.so will use to load implementation
 * specific libraries for optimization.  This is more specific in
 * intent than poking at uname or /proc/cpuinfo.
 *
 * For now we just provide a fairly general string that describes the
 * processor family.  This could be made more specific later if someone
 * implemented optimisations that require it.  26-bit CPUs give you
 * "v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't
 * supported).  32-bit CPUs give you "v3[lb]" for anything based on an
 * ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1
 * core.
 */
#define ELF_PLATFORM_SIZE 8
#define ELF_PLATFORM    (elf_platform)

extern char elf_platform[];

struct elf32_hdr;

/*
 * This is used to ensure we don't load something for the wrong architecture.
 */
extern int elf_check_arch(const struct elf32_hdr *);
#define elf_check_arch elf_check_arch

extern int arm_elf_read_implies_exec(const struct elf32_hdr *, int);
#define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(&(ex), stk)

#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 (2 * TASK_SIZE / 3)

/* When the program starts, a1 contains a pointer to a function to be 
   registered with atexit, as per the SVR4 ABI.  A value of 0 means we 
   have no such handler.  */
#define ELF_PLAT_INIT(_r, load_addr)      (_r)->ARM_r0 = 0

extern void elf_set_personality(const struct elf32_hdr *);
#define SET_PERSONALITY(ex)   elf_set_personality(&(ex))

#endif

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