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/* $Id: elf.h,v 1.32 2002/02/09 19:49:31 davem Exp $ */
#ifndef __ASM_SPARC64_ELF_H
#define __ASM_SPARC64_ELF_H
/*
* ELF register definitions..
*/
#include <asm/ptrace.h>
#ifdef __KERNEL__
#include <asm/processor.h>
#include <asm/uaccess.h>
#include <asm/spitfire.h>
#endif
/*
* Sparc section types
*/
#define STT_REGISTER 13
/*
* Sparc ELF relocation types
*/
#define R_SPARC_NONE 0
#define R_SPARC_8 1
#define R_SPARC_16 2
#define R_SPARC_32 3
#define R_SPARC_DISP8 4
#define R_SPARC_DISP16 5
#define R_SPARC_DISP32 6
#define R_SPARC_WDISP30 7
#define R_SPARC_WDISP22 8
#define R_SPARC_HI22 9
#define R_SPARC_22 10
#define R_SPARC_13 11
#define R_SPARC_LO10 12
#define R_SPARC_GOT10 13
#define R_SPARC_GOT13 14
#define R_SPARC_GOT22 15
#define R_SPARC_PC10 16
#define R_SPARC_PC22 17
#define R_SPARC_WPLT30 18
#define R_SPARC_COPY 19
#define R_SPARC_GLOB_DAT 20
#define R_SPARC_JMP_SLOT 21
#define R_SPARC_RELATIVE 22
#define R_SPARC_UA32 23
#define R_SPARC_PLT32 24
#define R_SPARC_HIPLT22 25
#define R_SPARC_LOPLT10 26
#define R_SPARC_PCPLT32 27
#define R_SPARC_PCPLT22 28
#define R_SPARC_PCPLT10 29
#define R_SPARC_10 30
#define R_SPARC_11 31
#define R_SPARC_64 32
#define R_SPARC_OLO10 33
#define R_SPARC_WDISP16 40
#define R_SPARC_WDISP19 41
#define R_SPARC_7 43
#define R_SPARC_5 44
#define R_SPARC_6 45
/* Bits present in AT_HWCAP, primarily for Sparc32. */
#define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */
#define HWCAP_SPARC_STBAR 2
#define HWCAP_SPARC_SWAP 4
#define HWCAP_SPARC_MULDIV 8
#define HWCAP_SPARC_V9 16
#define HWCAP_SPARC_ULTRA3 32
#define HWCAP_SPARC_BLKINIT 64
#define HWCAP_SPARC_N2 128
/*
* These are used to set parameters in the core dumps.
*/
#ifndef ELF_ARCH
#define ELF_ARCH EM_SPARCV9
#define ELF_CLASS ELFCLASS64
#define ELF_DATA ELFDATA2MSB
typedef unsigned long elf_greg_t;
#define ELF_NGREG 36
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
/* Format of 64-bit elf_gregset_t is:
* G0 --> G7
* O0 --> O7
* L0 --> L7
* I0 --> I7
* TSTATE
* TPC
* TNPC
* Y
*/
#define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs) \
do { unsigned long *dest = &(__elf_regs[0]); \
struct pt_regs *src = (__pt_regs); \
unsigned long __user *sp; \
int i; \
for(i = 0; i < 16; i++) \
dest[i] = src->u_regs[i]; \
/* Don't try this at home kids... */ \
sp = (unsigned long __user *) \
((src->u_regs[14] + STACK_BIAS) \
& 0xfffffffffffffff8UL); \
for(i = 0; i < 16; i++) \
__get_user(dest[i+16], &sp[i]); \
dest[32] = src->tstate; \
dest[33] = src->tpc; \
dest[34] = src->tnpc; \
dest[35] = src->y; \
} while (0);
typedef struct {
unsigned long pr_regs[32];
unsigned long pr_fsr;
unsigned long pr_gsr;
unsigned long pr_fprs;
} elf_fpregset_t;
#endif
#define ELF_CORE_COPY_TASK_REGS(__tsk, __elf_regs) \
({ ELF_CORE_COPY_REGS((*(__elf_regs)), task_pt_regs(__tsk)); 1; })
/*
* This is used to ensure we don't load something for the wrong architecture.
*/
#ifndef elf_check_arch
#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH) /* Might be EM_SPARCV9 or EM_SPARC */
#endif
#define USE_ELF_CORE_DUMP
#define ELF_EXEC_PAGESIZE PAGE_SIZE
/* 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. */
#ifndef ELF_ET_DYN_BASE
#define ELF_ET_DYN_BASE 0x0000010000000000UL
#endif
/* This yields a mask that user programs can use to figure out what
instruction set this cpu supports. */
/* On Ultra, we support all of the v8 capabilities. */
static inline unsigned int sparc64_elf_hwcap(void)
{
unsigned int cap = (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR |
HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV |
HWCAP_SPARC_V9);
if (tlb_type == cheetah || tlb_type == cheetah_plus)
cap |= HWCAP_SPARC_ULTRA3;
else if (tlb_type == hypervisor) {
if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 ||
sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
cap |= HWCAP_SPARC_BLKINIT;
if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
cap |= HWCAP_SPARC_N2;
}
return cap;
}
#define ELF_HWCAP sparc64_elf_hwcap();
/* 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. */
#define ELF_PLATFORM (NULL)
#ifdef __KERNEL__
#define SET_PERSONALITY(ex, ibcs2) \
do { unsigned long new_flags = current_thread_info()->flags; \
new_flags &= _TIF_32BIT; \
if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
new_flags |= _TIF_32BIT; \
else \
new_flags &= ~_TIF_32BIT; \
if ((current_thread_info()->flags & _TIF_32BIT) \
!= new_flags) \
set_thread_flag(TIF_ABI_PENDING); \
else \
clear_thread_flag(TIF_ABI_PENDING); \
/* flush_thread will update pgd cache */ \
if (ibcs2) \
set_personality(PER_SVR4); \
else if (current->personality != PER_LINUX32) \
set_personality(PER_LINUX); \
} while (0)
#endif
#endif /* !(__ASM_SPARC64_ELF_H) */
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