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136 lines
4.9 KiB
C
136 lines
4.9 KiB
C
/*
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* Copyright 2004-2009 Analog Devices Inc.
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*
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* Licensed under the GPL-2 or later.
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*/
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#ifndef __ASMBFIN_ELF_H
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#define __ASMBFIN_ELF_H
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/*
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* ELF register definitions..
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*/
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#include <asm/ptrace.h>
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#include <asm/user.h>
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/* Processor specific flags for the ELF header e_flags field. */
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#define EF_BFIN_PIC 0x00000001 /* -fpic */
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#define EF_BFIN_FDPIC 0x00000002 /* -mfdpic */
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#define EF_BFIN_CODE_IN_L1 0x00000010 /* --code-in-l1 */
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#define EF_BFIN_DATA_IN_L1 0x00000020 /* --data-in-l1 */
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#define EF_BFIN_CODE_IN_L2 0x00000040 /* --code-in-l2 */
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#define EF_BFIN_DATA_IN_L2 0x00000080 /* --data-in-l2 */
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#if 1 /* core dumps not supported, but linux/elfcore.h needs these */
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typedef unsigned long elf_greg_t;
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#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
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typedef elf_greg_t elf_gregset_t[ELF_NGREG];
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typedef struct { } elf_fpregset_t;
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#endif
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/*
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* This is used to ensure we don't load something for the wrong architecture.
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*/
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#define elf_check_arch(x) ((x)->e_machine == EM_BLACKFIN)
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#define elf_check_fdpic(x) ((x)->e_flags & EF_BFIN_FDPIC /* && !((x)->e_flags & EF_FRV_NON_PIC_RELOCS) */)
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#define elf_check_const_displacement(x) ((x)->e_flags & EF_BFIN_PIC)
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/* EM_BLACKFIN defined in linux/elf.h */
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/*
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* These are used to set parameters in the core dumps.
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*/
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#define ELF_CLASS ELFCLASS32
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#define ELF_DATA ELFDATA2LSB
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#define ELF_ARCH EM_BLACKFIN
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#define ELF_PLAT_INIT(_r) _r->p1 = 0
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#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map_addr, _interp_map_addr, _dynamic_addr) \
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do { \
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_regs->r7 = 0; \
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_regs->p0 = _exec_map_addr; \
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_regs->p1 = _interp_map_addr; \
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_regs->p2 = _dynamic_addr; \
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} while(0)
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#if 0
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#define CORE_DUMP_USE_REGSET
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#endif
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#define ELF_FDPIC_CORE_EFLAGS EF_BFIN_FDPIC
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#define ELF_EXEC_PAGESIZE 4096
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#define R_BFIN_UNUSED0 0 /* relocation type 0 is not defined */
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#define R_BFIN_PCREL5M2 1 /* LSETUP part a */
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#define R_BFIN_UNUSED1 2 /* relocation type 2 is not defined */
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#define R_BFIN_PCREL10 3 /* type 3, if cc jump <target> */
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#define R_BFIN_PCREL12_JUMP 4 /* type 4, jump <target> */
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#define R_BFIN_RIMM16 5 /* type 0x5, rN = <target> */
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#define R_BFIN_LUIMM16 6 /* # 0x6, preg.l=<target> Load imm 16 to lower half */
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#define R_BFIN_HUIMM16 7 /* # 0x7, preg.h=<target> Load imm 16 to upper half */
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#define R_BFIN_PCREL12_JUMP_S 8 /* # 0x8 jump.s <target> */
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#define R_BFIN_PCREL24_JUMP_X 9 /* # 0x9 jump.x <target> */
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#define R_BFIN_PCREL24 10 /* # 0xa call <target> , not expandable */
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#define R_BFIN_UNUSEDB 11 /* # 0xb not generated */
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#define R_BFIN_UNUSEDC 12 /* # 0xc not used */
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#define R_BFIN_PCREL24_JUMP_L 13 /* 0xd jump.l <target> */
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#define R_BFIN_PCREL24_CALL_X 14 /* 0xE, call.x <target> if <target> is above 24 bit limit call through P1 */
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#define R_BFIN_VAR_EQ_SYMB 15 /* 0xf, linker should treat it same as 0x12 */
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#define R_BFIN_BYTE_DATA 16 /* 0x10, .byte var = symbol */
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#define R_BFIN_BYTE2_DATA 17 /* 0x11, .byte2 var = symbol */
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#define R_BFIN_BYTE4_DATA 18 /* 0x12, .byte4 var = symbol and .var var=symbol */
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#define R_BFIN_PCREL11 19 /* 0x13, lsetup part b */
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#define R_BFIN_UNUSED14 20 /* 0x14, undefined */
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#define R_BFIN_UNUSED15 21 /* not generated by VDSP 3.5 */
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/* arithmetic relocations */
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#define R_BFIN_PUSH 0xE0
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#define R_BFIN_CONST 0xE1
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#define R_BFIN_ADD 0xE2
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#define R_BFIN_SUB 0xE3
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#define R_BFIN_MULT 0xE4
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#define R_BFIN_DIV 0xE5
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#define R_BFIN_MOD 0xE6
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#define R_BFIN_LSHIFT 0xE7
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#define R_BFIN_RSHIFT 0xE8
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#define R_BFIN_AND 0xE9
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#define R_BFIN_OR 0xEA
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#define R_BFIN_XOR 0xEB
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#define R_BFIN_LAND 0xEC
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#define R_BFIN_LOR 0xED
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#define R_BFIN_LEN 0xEE
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#define R_BFIN_NEG 0xEF
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#define R_BFIN_COMP 0xF0
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#define R_BFIN_PAGE 0xF1
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#define R_BFIN_HWPAGE 0xF2
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#define R_BFIN_ADDR 0xF3
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/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
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use of this is to invoke "./ld.so someprog" to test out a new version of
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the loader. We need to make sure that it is out of the way of the program
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that it will "exec", and that there is sufficient room for the brk. */
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#define ELF_ET_DYN_BASE 0xD0000000UL
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#define ELF_CORE_COPY_REGS(pr_reg, regs) \
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memcpy((char *) &pr_reg, (char *)regs, \
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sizeof(struct pt_regs));
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#define ELF_CORE_COPY_FPREGS(...) 0 /* Blackfin has no FPU */
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/* This yields a mask that user programs can use to figure out what
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instruction set this cpu supports. */
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#define ELF_HWCAP (0)
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/* This yields a string that ld.so will use to load implementation
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specific libraries for optimization. This is more specific in
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intent than poking at uname or /proc/cpuinfo. */
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#define ELF_PLATFORM (NULL)
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#endif
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