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