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 <linux/types.h> 13 #include <uapi/asm/elf.h> 14 15 /* These ELF defines belong to uapi but libc elf.h already defines them */ 16 #define EM_ARCOMPACT 93 17 18 #define EM_ARCV2 195 /* ARCv2 Cores */ 19 20 #define EM_ARC_INUSE (IS_ENABLED(CONFIG_ISA_ARCOMPACT) ? \ 21 EM_ARCOMPACT : EM_ARCV2) 22 23 /* ARC Relocations (kernel Modules only) */ 24 #define R_ARC_32 0x4 25 #define R_ARC_32_ME 0x1B 26 #define R_ARC_32_PCREL 0x31 27 28 /*to set parameters in the core dumps */ 29 #define ELF_ARCH EM_ARCOMPACT 30 #define ELF_CLASS ELFCLASS32 31 32 #ifdef CONFIG_CPU_BIG_ENDIAN 33 #define ELF_DATA ELFDATA2MSB 34 #else 35 #define ELF_DATA ELFDATA2LSB 36 #endif 37 38 /* 39 * To ensure that 40 * -we don't load something for the wrong architecture. 41 * -The userspace is using the correct syscall ABI 42 */ 43 struct elf32_hdr; 44 extern int elf_check_arch(const struct elf32_hdr *); 45 #define elf_check_arch elf_check_arch 46 47 #define CORE_DUMP_USE_REGSET 48 49 #define ELF_EXEC_PAGESIZE PAGE_SIZE 50 51 /* 52 * This is the location that an ET_DYN program is loaded if exec'ed. Typical 53 * use of this is to invoke "./ld.so someprog" to test out a new version of 54 * the loader. We need to make sure that it is out of the way of the program 55 * that it will "exec", and that there is sufficient room for the brk. 56 */ 57 #define ELF_ET_DYN_BASE (2UL * TASK_SIZE / 3) 58 59 /* 60 * When the program starts, a1 contains a pointer to a function to be 61 * registered with atexit, as per the SVR4 ABI. A value of 0 means we 62 * have no such handler. 63 */ 64 #define ELF_PLAT_INIT(_r, load_addr) ((_r)->r0 = 0) 65 66 /* 67 * This yields a mask that user programs can use to figure out what 68 * instruction set this cpu supports. 69 */ 70 #define ELF_HWCAP (0) 71 72 /* 73 * This yields a string that ld.so will use to load implementation 74 * specific libraries for optimization. This is more specific in 75 * intent than poking at uname or /proc/cpuinfo. 76 */ 77 #define ELF_PLATFORM (NULL) 78 79 #endif 80