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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 | /* SPDX-License-Identifier: GPL-2.0-only */ /* * ELF definitions for the Hexagon architecture * * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved. */ #ifndef __ASM_ELF_H #define __ASM_ELF_H #include <asm/ptrace.h> #include <asm/user.h> #include <linux/elf-em.h> struct elf32_hdr; /* * ELF header e_flags defines. */ /* should have stuff like "CPU type" and maybe "ABI version", etc */ /* Hexagon relocations */ /* V2 */ #define R_HEXAGON_NONE 0 #define R_HEXAGON_B22_PCREL 1 #define R_HEXAGON_B15_PCREL 2 #define R_HEXAGON_B7_PCREL 3 #define R_HEXAGON_LO16 4 #define R_HEXAGON_HI16 5 #define R_HEXAGON_32 6 #define R_HEXAGON_16 7 #define R_HEXAGON_8 8 #define R_HEXAGON_GPREL16_0 9 #define R_HEXAGON_GPREL16_1 10 #define R_HEXAGON_GPREL16_2 11 #define R_HEXAGON_GPREL16_3 12 #define R_HEXAGON_HL16 13 /* V3 */ #define R_HEXAGON_B13_PCREL 14 /* V4 */ #define R_HEXAGON_B9_PCREL 15 /* V4 (extenders) */ #define R_HEXAGON_B32_PCREL_X 16 #define R_HEXAGON_32_6_X 17 /* V4 (extended) */ #define R_HEXAGON_B22_PCREL_X 18 #define R_HEXAGON_B15_PCREL_X 19 #define R_HEXAGON_B13_PCREL_X 20 #define R_HEXAGON_B9_PCREL_X 21 #define R_HEXAGON_B7_PCREL_X 22 #define R_HEXAGON_16_X 23 #define R_HEXAGON_12_X 24 #define R_HEXAGON_11_X 25 #define R_HEXAGON_10_X 26 #define R_HEXAGON_9_X 27 #define R_HEXAGON_8_X 28 #define R_HEXAGON_7_X 29 #define R_HEXAGON_6_X 30 /* V2 PIC */ #define R_HEXAGON_32_PCREL 31 #define R_HEXAGON_COPY 32 #define R_HEXAGON_GLOB_DAT 33 #define R_HEXAGON_JMP_SLOT 34 #define R_HEXAGON_RELATIVE 35 #define R_HEXAGON_PLT_B22_PCREL 36 #define R_HEXAGON_GOTOFF_LO16 37 #define R_HEXAGON_GOTOFF_HI16 38 #define R_HEXAGON_GOTOFF_32 39 #define R_HEXAGON_GOT_LO16 40 #define R_HEXAGON_GOT_HI16 41 #define R_HEXAGON_GOT_32 42 #define R_HEXAGON_GOT_16 43 /* * ELF register definitions.. */ typedef unsigned long elf_greg_t; typedef struct user_regs_struct elf_gregset_t; #define ELF_NGREG (sizeof(elf_gregset_t)/sizeof(unsigned long)) /* Placeholder */ typedef unsigned long elf_fpregset_t; /* * Bypass the whole "regsets" thing for now and use the define. */ #if CONFIG_HEXAGON_ARCH_VERSION >= 4 #define CS_COPYREGS(DEST,REGS) \ do {\ DEST.cs0 = REGS->cs0;\ DEST.cs1 = REGS->cs1;\ } while (0) #else #define CS_COPYREGS(DEST,REGS) #endif #define ELF_CORE_COPY_REGS(DEST, REGS) \ do { \ DEST.r0 = REGS->r00; \ DEST.r1 = REGS->r01; \ DEST.r2 = REGS->r02; \ DEST.r3 = REGS->r03; \ DEST.r4 = REGS->r04; \ DEST.r5 = REGS->r05; \ DEST.r6 = REGS->r06; \ DEST.r7 = REGS->r07; \ DEST.r8 = REGS->r08; \ DEST.r9 = REGS->r09; \ DEST.r10 = REGS->r10; \ DEST.r11 = REGS->r11; \ DEST.r12 = REGS->r12; \ DEST.r13 = REGS->r13; \ DEST.r14 = REGS->r14; \ DEST.r15 = REGS->r15; \ DEST.r16 = REGS->r16; \ DEST.r17 = REGS->r17; \ DEST.r18 = REGS->r18; \ DEST.r19 = REGS->r19; \ DEST.r20 = REGS->r20; \ DEST.r21 = REGS->r21; \ DEST.r22 = REGS->r22; \ DEST.r23 = REGS->r23; \ DEST.r24 = REGS->r24; \ DEST.r25 = REGS->r25; \ DEST.r26 = REGS->r26; \ DEST.r27 = REGS->r27; \ DEST.r28 = REGS->r28; \ DEST.r29 = pt_psp(REGS); \ DEST.r30 = REGS->r30; \ DEST.r31 = REGS->r31; \ DEST.sa0 = REGS->sa0; \ DEST.lc0 = REGS->lc0; \ DEST.sa1 = REGS->sa1; \ DEST.lc1 = REGS->lc1; \ DEST.m0 = REGS->m0; \ DEST.m1 = REGS->m1; \ DEST.usr = REGS->usr; \ DEST.p3_0 = REGS->preds; \ DEST.gp = REGS->gp; \ DEST.ugp = REGS->ugp; \ CS_COPYREGS(DEST,REGS); \ DEST.pc = pt_elr(REGS); \ DEST.cause = pt_cause(REGS); \ DEST.badva = pt_badva(REGS); \ } while (0); /* * This is used to ensure we don't load something for the wrong architecture. * Checks the machine and ABI type. */ #define elf_check_arch(hdr) ((hdr)->e_machine == EM_HEXAGON) /* * These are used to set parameters in the core dumps. */ #define ELF_CLASS ELFCLASS32 #define ELF_DATA ELFDATA2LSB #define ELF_ARCH EM_HEXAGON #if CONFIG_HEXAGON_ARCH_VERSION == 2 #define ELF_CORE_EFLAGS 0x1 #endif #if CONFIG_HEXAGON_ARCH_VERSION == 3 #define ELF_CORE_EFLAGS 0x2 #endif #if CONFIG_HEXAGON_ARCH_VERSION == 4 #define ELF_CORE_EFLAGS 0x3 #endif /* * Some architectures have ld.so set up a pointer to a function * to be registered using atexit, to facilitate cleanup. So that * static executables will be well-behaved, we would null the register * in question here, in the pt_regs structure passed. For now, * leave it a null macro. */ #define ELF_PLAT_INIT(regs, load_addr) do { } while (0) #define CORE_DUMP_USE_REGSET /* Hrm is this going to cause problems for changing PAGE_SIZE? */ #define ELF_EXEC_PAGESIZE PAGE_SIZE /* * 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 0x08000000UL /* * 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) #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 struct linux_binprm; extern int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp); #endif |