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Diffstat (limited to 'arch/blackfin/include/asm/elf.h')
| -rw-r--r-- | arch/blackfin/include/asm/elf.h | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/elf.h b/arch/blackfin/include/asm/elf.h new file mode 100644 index 000000000..d15cb9b5d --- /dev/null +++ b/arch/blackfin/include/asm/elf.h @@ -0,0 +1,135 @@ +/* + * Copyright 2004-2009 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#ifndef __ASMBFIN_ELF_H +#define __ASMBFIN_ELF_H + +/* + * ELF register definitions.. + */ + +#include <asm/ptrace.h> +#include <asm/user.h> + +/* Processor specific flags for the ELF header e_flags field. */ +#define EF_BFIN_PIC 0x00000001 /* -fpic */ +#define EF_BFIN_FDPIC 0x00000002 /* -mfdpic */ +#define EF_BFIN_CODE_IN_L1 0x00000010 /* --code-in-l1 */ +#define EF_BFIN_DATA_IN_L1 0x00000020 /* --data-in-l1 */ +#define EF_BFIN_CODE_IN_L2 0x00000040 /* --code-in-l2 */ +#define EF_BFIN_DATA_IN_L2 0x00000080 /* --data-in-l2 */ + +#if 1 /* core dumps not supported, but linux/elfcore.h needs these */ +typedef unsigned long elf_greg_t; + +#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t)) +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +typedef struct { } elf_fpregset_t; +#endif + +/* + * This is used to ensure we don't load something for the wrong architecture. + */ +#define elf_check_arch(x) ((x)->e_machine == EM_BLACKFIN) + +#define elf_check_fdpic(x) ((x)->e_flags & EF_BFIN_FDPIC /* && !((x)->e_flags & EF_FRV_NON_PIC_RELOCS) */) +#define elf_check_const_displacement(x) ((x)->e_flags & EF_BFIN_PIC) + +/* EM_BLACKFIN defined in linux/elf.h */ + +/* + * These are used to set parameters in the core dumps. + */ +#define ELF_CLASS ELFCLASS32 +#define ELF_DATA ELFDATA2LSB +#define ELF_ARCH EM_BLACKFIN + +#define ELF_PLAT_INIT(_r) _r->p1 = 0 + +#define ELF_FDPIC_PLAT_INIT(_regs, _exec_map_addr, _interp_map_addr, _dynamic_addr) \ +do { \ + _regs->r7 = 0; \ + _regs->p0 = _exec_map_addr; \ + _regs->p1 = _interp_map_addr; \ + _regs->p2 = _dynamic_addr; \ +} while(0) + +#if 0 +#define CORE_DUMP_USE_REGSET +#endif +#define ELF_FDPIC_CORE_EFLAGS EF_BFIN_FDPIC +#define ELF_EXEC_PAGESIZE 4096 + +#define R_BFIN_UNUSED0 0 /* relocation type 0 is not defined */ +#define R_BFIN_PCREL5M2 1 /* LSETUP part a */ +#define R_BFIN_UNUSED1 2 /* relocation type 2 is not defined */ +#define R_BFIN_PCREL10 3 /* type 3, if cc jump <target> */ +#define R_BFIN_PCREL12_JUMP 4 /* type 4, jump <target> */ +#define R_BFIN_RIMM16 5 /* type 0x5, rN = <target> */ +#define R_BFIN_LUIMM16 6 /* # 0x6, preg.l=<target> Load imm 16 to lower half */ +#define R_BFIN_HUIMM16 7 /* # 0x7, preg.h=<target> Load imm 16 to upper half */ +#define R_BFIN_PCREL12_JUMP_S 8 /* # 0x8 jump.s <target> */ +#define R_BFIN_PCREL24_JUMP_X 9 /* # 0x9 jump.x <target> */ +#define R_BFIN_PCREL24 10 /* # 0xa call <target> , not expandable */ +#define R_BFIN_UNUSEDB 11 /* # 0xb not generated */ +#define R_BFIN_UNUSEDC 12 /* # 0xc not used */ +#define R_BFIN_PCREL24_JUMP_L 13 /* 0xd jump.l <target> */ +#define R_BFIN_PCREL24_CALL_X 14 /* 0xE, call.x <target> if <target> is above 24 bit limit call through P1 */ +#define R_BFIN_VAR_EQ_SYMB 15 /* 0xf, linker should treat it same as 0x12 */ +#define R_BFIN_BYTE_DATA 16 /* 0x10, .byte var = symbol */ +#define R_BFIN_BYTE2_DATA 17 /* 0x11, .byte2 var = symbol */ +#define R_BFIN_BYTE4_DATA 18 /* 0x12, .byte4 var = symbol and .var var=symbol */ +#define R_BFIN_PCREL11 19 /* 0x13, lsetup part b */ +#define R_BFIN_UNUSED14 20 /* 0x14, undefined */ +#define R_BFIN_UNUSED15 21 /* not generated by VDSP 3.5 */ + +/* arithmetic relocations */ +#define R_BFIN_PUSH 0xE0 +#define R_BFIN_CONST 0xE1 +#define R_BFIN_ADD 0xE2 +#define R_BFIN_SUB 0xE3 +#define R_BFIN_MULT 0xE4 +#define R_BFIN_DIV 0xE5 +#define R_BFIN_MOD 0xE6 +#define R_BFIN_LSHIFT 0xE7 +#define R_BFIN_RSHIFT 0xE8 +#define R_BFIN_AND 0xE9 +#define R_BFIN_OR 0xEA +#define R_BFIN_XOR 0xEB +#define R_BFIN_LAND 0xEC +#define R_BFIN_LOR 0xED +#define R_BFIN_LEN 0xEE +#define R_BFIN_NEG 0xEF +#define R_BFIN_COMP 0xF0 +#define R_BFIN_PAGE 0xF1 +#define R_BFIN_HWPAGE 0xF2 +#define R_BFIN_ADDR 0xF3 + +/* 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 0xD0000000UL + +#define ELF_CORE_COPY_REGS(pr_reg, regs) \ + memcpy((char *) &pr_reg, (char *)regs, \ + sizeof(struct pt_regs)); +#define ELF_CORE_COPY_FPREGS(...) 0 /* Blackfin has no FPU */ + +/* This yields a mask that user programs can use to figure out what + instruction set this cpu supports. */ + +#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. */ + +#define ELF_PLATFORM (NULL) + +#endif |