| /* |
| * Copyright (C) 2012 ARM Ltd. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| */ |
| #ifndef __ASM_ELF_H |
| #define __ASM_ELF_H |
| |
| #include <asm/hwcap.h> |
| |
| /* |
| * ELF register definitions.. |
| */ |
| #include <asm/ptrace.h> |
| #include <asm/user.h> |
| |
| typedef unsigned long elf_greg_t; |
| |
| #define ELF_NGREG (sizeof(struct user_pt_regs) / sizeof(elf_greg_t)) |
| #define ELF_CORE_COPY_REGS(dest, regs) \ |
| *(struct user_pt_regs *)&(dest) = (regs)->user_regs; |
| |
| typedef elf_greg_t elf_gregset_t[ELF_NGREG]; |
| typedef struct user_fpsimd_state elf_fpregset_t; |
| |
| /* |
| * AArch64 static relocation types. |
| */ |
| |
| /* Miscellaneous. */ |
| #define R_ARM_NONE 0 |
| #define R_AARCH64_NONE 256 |
| |
| /* Data. */ |
| #define R_AARCH64_ABS64 257 |
| #define R_AARCH64_ABS32 258 |
| #define R_AARCH64_ABS16 259 |
| #define R_AARCH64_PREL64 260 |
| #define R_AARCH64_PREL32 261 |
| #define R_AARCH64_PREL16 262 |
| |
| /* Instructions. */ |
| #define R_AARCH64_MOVW_UABS_G0 263 |
| #define R_AARCH64_MOVW_UABS_G0_NC 264 |
| #define R_AARCH64_MOVW_UABS_G1 265 |
| #define R_AARCH64_MOVW_UABS_G1_NC 266 |
| #define R_AARCH64_MOVW_UABS_G2 267 |
| #define R_AARCH64_MOVW_UABS_G2_NC 268 |
| #define R_AARCH64_MOVW_UABS_G3 269 |
| |
| #define R_AARCH64_MOVW_SABS_G0 270 |
| #define R_AARCH64_MOVW_SABS_G1 271 |
| #define R_AARCH64_MOVW_SABS_G2 272 |
| |
| #define R_AARCH64_LD_PREL_LO19 273 |
| #define R_AARCH64_ADR_PREL_LO21 274 |
| #define R_AARCH64_ADR_PREL_PG_HI21 275 |
| #define R_AARCH64_ADR_PREL_PG_HI21_NC 276 |
| #define R_AARCH64_ADD_ABS_LO12_NC 277 |
| #define R_AARCH64_LDST8_ABS_LO12_NC 278 |
| |
| #define R_AARCH64_TSTBR14 279 |
| #define R_AARCH64_CONDBR19 280 |
| #define R_AARCH64_JUMP26 282 |
| #define R_AARCH64_CALL26 283 |
| #define R_AARCH64_LDST16_ABS_LO12_NC 284 |
| #define R_AARCH64_LDST32_ABS_LO12_NC 285 |
| #define R_AARCH64_LDST64_ABS_LO12_NC 286 |
| #define R_AARCH64_LDST128_ABS_LO12_NC 299 |
| |
| #define R_AARCH64_MOVW_PREL_G0 287 |
| #define R_AARCH64_MOVW_PREL_G0_NC 288 |
| #define R_AARCH64_MOVW_PREL_G1 289 |
| #define R_AARCH64_MOVW_PREL_G1_NC 290 |
| #define R_AARCH64_MOVW_PREL_G2 291 |
| #define R_AARCH64_MOVW_PREL_G2_NC 292 |
| #define R_AARCH64_MOVW_PREL_G3 293 |
| |
| /* |
| * These are used to set parameters in the core dumps. |
| */ |
| #define ELF_CLASS ELFCLASS64 |
| #ifdef __AARCH64EB__ |
| #define ELF_DATA ELFDATA2MSB |
| #else |
| #define ELF_DATA ELFDATA2LSB |
| #endif |
| #define ELF_ARCH EM_AARCH64 |
| |
| /* |
| * 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_SIZE 16 |
| #ifdef __AARCH64EB__ |
| #define ELF_PLATFORM ("aarch64_be") |
| #else |
| #define ELF_PLATFORM ("aarch64") |
| #endif |
| |
| /* |
| * This is used to ensure we don't load something for the wrong architecture. |
| */ |
| #define elf_check_arch(x) ((x)->e_machine == EM_AARCH64) |
| |
| #define elf_read_implies_exec(ex,stk) (stk != EXSTACK_DISABLE_X) |
| |
| #define CORE_DUMP_USE_REGSET |
| #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 (2 * TASK_SIZE_64 / 3) |
| |
| /* |
| * When the program starts, a1 contains a pointer to a function to be |
| * registered with atexit, as per the SVR4 ABI. A value of 0 means we have no |
| * such handler. |
| */ |
| #define ELF_PLAT_INIT(_r, load_addr) (_r)->regs[0] = 0 |
| |
| #define SET_PERSONALITY(ex) clear_thread_flag(TIF_32BIT); |
| |
| /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */ |
| #define ARCH_DLINFO \ |
| do { \ |
| NEW_AUX_ENT(AT_SYSINFO_EHDR, \ |
| (elf_addr_t)current->mm->context.vdso); \ |
| } while (0) |
| |
| #define ARCH_HAS_SETUP_ADDITIONAL_PAGES |
| struct linux_binprm; |
| extern int arch_setup_additional_pages(struct linux_binprm *bprm, |
| int uses_interp); |
| |
| /* 1GB of VA */ |
| #ifdef CONFIG_COMPAT |
| #define STACK_RND_MASK (test_thread_flag(TIF_32BIT) ? \ |
| 0x7ff >> (PAGE_SHIFT - 12) : \ |
| 0x3ffff >> (PAGE_SHIFT - 12)) |
| #else |
| #define STACK_RND_MASK (0x3ffff >> (PAGE_SHIFT - 12)) |
| #endif |
| |
| #ifdef __AARCH64EB__ |
| #define COMPAT_ELF_PLATFORM ("v8b") |
| #else |
| #define COMPAT_ELF_PLATFORM ("v8l") |
| #endif |
| |
| #ifdef CONFIG_COMPAT |
| |
| #define COMPAT_ELF_ET_DYN_BASE (2 * TASK_SIZE_32 / 3) |
| |
| /* AArch32 registers. */ |
| #define COMPAT_ELF_NGREG 18 |
| typedef unsigned int compat_elf_greg_t; |
| typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG]; |
| |
| /* AArch32 EABI. */ |
| #define EF_ARM_EABI_MASK 0xff000000 |
| #define compat_elf_check_arch(x) (((x)->e_machine == EM_ARM) && \ |
| ((x)->e_flags & EF_ARM_EABI_MASK)) |
| |
| #define compat_start_thread compat_start_thread |
| #define COMPAT_SET_PERSONALITY(ex) set_thread_flag(TIF_32BIT); |
| #define COMPAT_ARCH_DLINFO |
| extern int aarch32_setup_vectors_page(struct linux_binprm *bprm, |
| int uses_interp); |
| #define compat_arch_setup_additional_pages \ |
| aarch32_setup_vectors_page |
| |
| #endif /* CONFIG_COMPAT */ |
| |
| #endif |