+++ /dev/null
-/*
- * include/asm-xtensa/elf.h
- *
- * ELF register definitions
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2001 - 2005 Tensilica Inc.
- */
-
-#ifndef _XTENSA_ELF_H
-#define _XTENSA_ELF_H
-
-#include <asm/ptrace.h>
-
-/* Xtensa processor ELF architecture-magic number */
-
-#define EM_XTENSA 94
-#define EM_XTENSA_OLD 0xABC7
-
-/* Xtensa relocations defined by the ABIs */
-
-#define R_XTENSA_NONE 0
-#define R_XTENSA_32 1
-#define R_XTENSA_RTLD 2
-#define R_XTENSA_GLOB_DAT 3
-#define R_XTENSA_JMP_SLOT 4
-#define R_XTENSA_RELATIVE 5
-#define R_XTENSA_PLT 6
-#define R_XTENSA_OP0 8
-#define R_XTENSA_OP1 9
-#define R_XTENSA_OP2 10
-#define R_XTENSA_ASM_EXPAND 11
-#define R_XTENSA_ASM_SIMPLIFY 12
-#define R_XTENSA_GNU_VTINHERIT 15
-#define R_XTENSA_GNU_VTENTRY 16
-#define R_XTENSA_DIFF8 17
-#define R_XTENSA_DIFF16 18
-#define R_XTENSA_DIFF32 19
-#define R_XTENSA_SLOT0_OP 20
-#define R_XTENSA_SLOT1_OP 21
-#define R_XTENSA_SLOT2_OP 22
-#define R_XTENSA_SLOT3_OP 23
-#define R_XTENSA_SLOT4_OP 24
-#define R_XTENSA_SLOT5_OP 25
-#define R_XTENSA_SLOT6_OP 26
-#define R_XTENSA_SLOT7_OP 27
-#define R_XTENSA_SLOT8_OP 28
-#define R_XTENSA_SLOT9_OP 29
-#define R_XTENSA_SLOT10_OP 30
-#define R_XTENSA_SLOT11_OP 31
-#define R_XTENSA_SLOT12_OP 32
-#define R_XTENSA_SLOT13_OP 33
-#define R_XTENSA_SLOT14_OP 34
-#define R_XTENSA_SLOT0_ALT 35
-#define R_XTENSA_SLOT1_ALT 36
-#define R_XTENSA_SLOT2_ALT 37
-#define R_XTENSA_SLOT3_ALT 38
-#define R_XTENSA_SLOT4_ALT 39
-#define R_XTENSA_SLOT5_ALT 40
-#define R_XTENSA_SLOT6_ALT 41
-#define R_XTENSA_SLOT7_ALT 42
-#define R_XTENSA_SLOT8_ALT 43
-#define R_XTENSA_SLOT9_ALT 44
-#define R_XTENSA_SLOT10_ALT 45
-#define R_XTENSA_SLOT11_ALT 46
-#define R_XTENSA_SLOT12_ALT 47
-#define R_XTENSA_SLOT13_ALT 48
-#define R_XTENSA_SLOT14_ALT 49
-
-/* ELF register definitions. This is needed for core dump support. */
-
-typedef unsigned long elf_greg_t;
-
-typedef struct {
- elf_greg_t pc;
- elf_greg_t ps;
- elf_greg_t lbeg;
- elf_greg_t lend;
- elf_greg_t lcount;
- elf_greg_t sar;
- elf_greg_t windowstart;
- elf_greg_t windowbase;
- elf_greg_t reserved[8+48];
- elf_greg_t a[64];
-} xtensa_gregset_t;
-
-#define ELF_NGREG (sizeof(xtensa_gregset_t) / sizeof(elf_greg_t))
-
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-
-#define ELF_NFPREG 18
-
-typedef unsigned int elf_fpreg_t;
-typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
-
-#define ELF_CORE_COPY_REGS(_eregs, _pregs) \
- xtensa_elf_core_copy_regs ((xtensa_gregset_t*)&(_eregs), _pregs);
-
-extern void xtensa_elf_core_copy_regs (xtensa_gregset_t *, struct pt_regs *);
-
-/*
- * This is used to ensure we don't load something for the wrong architecture.
- */
-
-#define elf_check_arch(x) ( ( (x)->e_machine == EM_XTENSA ) || \
- ( (x)->e_machine == EM_XTENSA_OLD ) )
-
-/*
- * These are used to set parameters in the core dumps.
- */
-
-#ifdef __XTENSA_EL__
-# define ELF_DATA ELFDATA2LSB
-#elif defined(__XTENSA_EB__)
-# define ELF_DATA ELFDATA2MSB
-#else
-# error processor byte order undefined!
-#endif
-
-#define ELF_CLASS ELFCLASS32
-#define ELF_ARCH EM_XTENSA
-
-#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.
- */
-
-#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
-
-/*
- * This yields a mask that user programs can use to figure out what
- * instruction set this CPU supports. This could be done in user space,
- * but it's not easy, and we've already done it here.
- */
-
-#define ELF_HWCAP (0)
-
-/*
- * 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 the moment, we have only optimizations for the Intel generations,
- * but that could change...
- */
-
-#define ELF_PLATFORM (NULL)
-
-/*
- * The Xtensa processor ABI says that when the program starts, a2
- * contains a pointer to a function which might be registered using
- * `atexit'. This provides a mean for the dynamic linker to call
- * DT_FINI functions for shared libraries that have been loaded before
- * the code runs.
- *
- * A value of 0 tells we have no such handler.
- *
- * We might as well make sure everything else is cleared too (except
- * for the stack pointer in a1), just to make things more
- * deterministic. Also, clearing a0 terminates debugger backtraces.
- */
-
-#define ELF_PLAT_INIT(_r, load_addr) \
- do { _r->areg[0]=0; /*_r->areg[1]=0;*/ _r->areg[2]=0; _r->areg[3]=0; \
- _r->areg[4]=0; _r->areg[5]=0; _r->areg[6]=0; _r->areg[7]=0; \
- _r->areg[8]=0; _r->areg[9]=0; _r->areg[10]=0; _r->areg[11]=0; \
- _r->areg[12]=0; _r->areg[13]=0; _r->areg[14]=0; _r->areg[15]=0; \
- } while (0)
-
-typedef struct {
- xtregs_opt_t opt;
- xtregs_user_t user;
-#if XTENSA_HAVE_COPROCESSORS
- xtregs_cp0_t cp0;
- xtregs_cp1_t cp1;
- xtregs_cp2_t cp2;
- xtregs_cp3_t cp3;
- xtregs_cp4_t cp4;
- xtregs_cp5_t cp5;
- xtregs_cp6_t cp6;
- xtregs_cp7_t cp7;
-#endif
-} elf_xtregs_t;
-
-#define SET_PERSONALITY(ex) set_personality(PER_LINUX_32BIT)
-
-struct task_struct;
-
-extern void do_copy_regs (xtensa_gregset_t*, struct pt_regs*,
- struct task_struct*);
-extern void do_restore_regs (xtensa_gregset_t*, struct pt_regs*,
- struct task_struct*);
-extern void do_save_fpregs (elf_fpregset_t*, struct pt_regs*,
- struct task_struct*);
-extern int do_restore_fpregs (elf_fpregset_t*, struct pt_regs*,
- struct task_struct*);
-
-#endif /* _XTENSA_ELF_H */
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