Vineet Gupta | 3be80aa | 2013-01-18 15:12:17 +0530 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * published by the Free Software Foundation. |
| 7 | */ |
| 8 | |
| 9 | #ifndef __ASM_ARC_ELF_H |
| 10 | #define __ASM_ARC_ELF_H |
| 11 | |
| 12 | #include <asm/ptrace.h> |
| 13 | |
| 14 | #define EM_ARCOMPACT 93 |
| 15 | |
| 16 | /* Machine specific ELF Hdr flags */ |
| 17 | #define EF_ARC_OSABI_MSK 0x00000f00 |
| 18 | #define EF_ARC_OSABI_ORIG 0x00000000 /* MUST be zero for back-compat */ |
| 19 | #define EF_ARC_OSABI_V2 0x00000200 |
| 20 | |
| 21 | /* ARC Relocations (kernel Modules only) */ |
| 22 | #define R_ARC_32 0x4 |
| 23 | #define R_ARC_32_ME 0x1B |
| 24 | #define R_ARC_S25H_PCREL 0x10 |
| 25 | #define R_ARC_S25W_PCREL 0x11 |
| 26 | |
| 27 | typedef unsigned long elf_greg_t; |
| 28 | typedef unsigned long elf_fpregset_t; |
| 29 | |
| 30 | |
| 31 | /* core dump regs is in the order pt_regs, callee_regs, stop_pc (for gdb) */ |
| 32 | #define ELF_NGREG ((sizeof(struct pt_regs) + sizeof(struct callee_regs) \ |
| 33 | + sizeof(unsigned long)) / sizeof(elf_greg_t)) |
| 34 | |
| 35 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; |
| 36 | |
| 37 | /* |
| 38 | * To ensure that |
| 39 | * -we don't load something for the wrong architecture. |
| 40 | * -The userspace is using the correct syscall ABI |
| 41 | */ |
| 42 | struct elf32_hdr; |
| 43 | extern int elf_check_arch(const struct elf32_hdr *); |
| 44 | #define elf_check_arch elf_check_arch |
| 45 | |
| 46 | /* |
| 47 | * These are used to set parameters in the core dumps. |
| 48 | */ |
| 49 | #define ELF_ARCH EM_ARCOMPACT |
| 50 | #define ELF_CLASS ELFCLASS32 |
| 51 | |
| 52 | #ifdef CONFIG_CPU_BIG_ENDIAN |
| 53 | #define ELF_DATA ELFDATA2MSB |
| 54 | #else |
| 55 | #define ELF_DATA ELFDATA2LSB |
| 56 | #endif |
| 57 | |
| 58 | #ifdef __KERNEL__ |
| 59 | |
| 60 | #define CORE_DUMP_USE_REGSET |
| 61 | |
| 62 | #define ELF_EXEC_PAGESIZE PAGE_SIZE |
| 63 | |
| 64 | /* |
| 65 | * This is the location that an ET_DYN program is loaded if exec'ed. Typical |
| 66 | * use of this is to invoke "./ld.so someprog" to test out a new version of |
| 67 | * the loader. We need to make sure that it is out of the way of the program |
| 68 | * that it will "exec", and that there is sufficient room for the brk. |
| 69 | */ |
| 70 | #define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) |
| 71 | |
| 72 | /* |
| 73 | * When the program starts, a1 contains a pointer to a function to be |
| 74 | * registered with atexit, as per the SVR4 ABI. A value of 0 means we |
| 75 | * have no such handler. |
| 76 | */ |
| 77 | #define ELF_PLAT_INIT(_r, load_addr) ((_r)->r0 = 0) |
| 78 | |
| 79 | /* |
| 80 | * This yields a mask that user programs can use to figure out what |
| 81 | * instruction set this cpu supports. |
| 82 | */ |
| 83 | #define ELF_HWCAP (0) |
| 84 | |
| 85 | /* |
| 86 | * This yields a string that ld.so will use to load implementation |
| 87 | * specific libraries for optimization. This is more specific in |
| 88 | * intent than poking at uname or /proc/cpuinfo. |
| 89 | */ |
| 90 | #define ELF_PLATFORM (NULL) |
| 91 | |
| 92 | #define SET_PERSONALITY(ex) \ |
| 93 | set_personality(PER_LINUX | (current->personality & (~PER_MASK))) |
| 94 | |
| 95 | #endif /* __KERNEL__ */ |
| 96 | |
| 97 | #endif |