2 * Copyright (C) 2012 ARM Ltd.
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.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 #include <asm/hwcap.h>
22 * ELF register definitions..
24 #include <asm/ptrace.h>
27 typedef unsigned long elf_greg_t;
29 #define ELF_NGREG (sizeof(struct user_pt_regs) / sizeof(elf_greg_t))
30 #define ELF_CORE_COPY_REGS(dest, regs) \
31 *(struct user_pt_regs *)&(dest) = (regs)->user_regs;
33 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
34 typedef struct user_fpsimd_state elf_fpregset_t;
36 #define EM_AARCH64 183
39 * AArch64 static relocation types.
44 #define R_AARCH64_NONE 256
47 #define R_AARCH64_ABS64 257
48 #define R_AARCH64_ABS32 258
49 #define R_AARCH64_ABS16 259
50 #define R_AARCH64_PREL64 260
51 #define R_AARCH64_PREL32 261
52 #define R_AARCH64_PREL16 262
55 #define R_AARCH64_MOVW_UABS_G0 263
56 #define R_AARCH64_MOVW_UABS_G0_NC 264
57 #define R_AARCH64_MOVW_UABS_G1 265
58 #define R_AARCH64_MOVW_UABS_G1_NC 266
59 #define R_AARCH64_MOVW_UABS_G2 267
60 #define R_AARCH64_MOVW_UABS_G2_NC 268
61 #define R_AARCH64_MOVW_UABS_G3 269
63 #define R_AARCH64_MOVW_SABS_G0 270
64 #define R_AARCH64_MOVW_SABS_G1 271
65 #define R_AARCH64_MOVW_SABS_G2 272
67 #define R_AARCH64_LD_PREL_LO19 273
68 #define R_AARCH64_ADR_PREL_LO21 274
69 #define R_AARCH64_ADR_PREL_PG_HI21 275
70 #define R_AARCH64_ADR_PREL_PG_HI21_NC 276
71 #define R_AARCH64_ADD_ABS_LO12_NC 277
72 #define R_AARCH64_LDST8_ABS_LO12_NC 278
74 #define R_AARCH64_TSTBR14 279
75 #define R_AARCH64_CONDBR19 280
76 #define R_AARCH64_JUMP26 282
77 #define R_AARCH64_CALL26 283
78 #define R_AARCH64_LDST16_ABS_LO12_NC 284
79 #define R_AARCH64_LDST32_ABS_LO12_NC 285
80 #define R_AARCH64_LDST64_ABS_LO12_NC 286
81 #define R_AARCH64_LDST128_ABS_LO12_NC 299
83 #define R_AARCH64_MOVW_PREL_G0 287
84 #define R_AARCH64_MOVW_PREL_G0_NC 288
85 #define R_AARCH64_MOVW_PREL_G1 289
86 #define R_AARCH64_MOVW_PREL_G1_NC 290
87 #define R_AARCH64_MOVW_PREL_G2 291
88 #define R_AARCH64_MOVW_PREL_G2_NC 292
89 #define R_AARCH64_MOVW_PREL_G3 293
92 * These are used to set parameters in the core dumps.
94 #define ELF_CLASS ELFCLASS64
96 #define ELF_DATA ELFDATA2MSB
98 #define ELF_DATA ELFDATA2LSB
100 #define ELF_ARCH EM_AARCH64
103 * This yields a string that ld.so will use to load implementation
104 * specific libraries for optimization. This is more specific in
105 * intent than poking at uname or /proc/cpuinfo.
107 #define ELF_PLATFORM_SIZE 16
109 #define ELF_PLATFORM ("aarch64_be")
111 #define ELF_PLATFORM ("aarch64")
115 * This is used to ensure we don't load something for the wrong architecture.
117 #define elf_check_arch(x) ((x)->e_machine == EM_AARCH64)
119 #define elf_read_implies_exec(ex,stk) (stk != EXSTACK_DISABLE_X)
121 #define CORE_DUMP_USE_REGSET
122 #define ELF_EXEC_PAGESIZE PAGE_SIZE
125 * This is the location that an ET_DYN program is loaded if exec'ed. Typical
126 * use of this is to invoke "./ld.so someprog" to test out a new version of
127 * the loader. We need to make sure that it is out of the way of the program
128 * that it will "exec", and that there is sufficient room for the brk.
130 extern unsigned long randomize_et_dyn(unsigned long base);
131 #define ELF_ET_DYN_BASE (randomize_et_dyn(2 * TASK_SIZE_64 / 3))
134 * When the program starts, a1 contains a pointer to a function to be
135 * registered with atexit, as per the SVR4 ABI. A value of 0 means we have no
138 #define ELF_PLAT_INIT(_r, load_addr) (_r)->regs[0] = 0
140 #define SET_PERSONALITY(ex) clear_thread_flag(TIF_32BIT);
142 #define ARCH_DLINFO \
144 NEW_AUX_ENT(AT_SYSINFO_EHDR, \
145 (elf_addr_t)current->mm->context.vdso); \
148 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES
150 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
155 #define STACK_RND_MASK (test_thread_flag(TIF_32BIT) ? \
156 0x7ff >> (PAGE_SHIFT - 12) : \
157 0x3ffff >> (PAGE_SHIFT - 12))
159 #define STACK_RND_MASK (0x3ffff >> (PAGE_SHIFT - 12))
163 extern unsigned long arch_randomize_brk(struct mm_struct *mm);
164 #define arch_randomize_brk arch_randomize_brk
168 #define COMPAT_ELF_PLATFORM ("v8l")
170 #define COMPAT_ELF_ET_DYN_BASE (randomize_et_dyn(2 * TASK_SIZE_32 / 3))
172 /* AArch32 registers. */
173 #define COMPAT_ELF_NGREG 18
174 typedef unsigned int compat_elf_greg_t;
175 typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
178 #define EF_ARM_EABI_MASK 0xff000000
179 #define compat_elf_check_arch(x) (((x)->e_machine == EM_ARM) && \
180 ((x)->e_flags & EF_ARM_EABI_MASK))
182 #define compat_start_thread compat_start_thread
183 #define COMPAT_SET_PERSONALITY(ex) set_thread_flag(TIF_32BIT);
184 #define COMPAT_ARCH_DLINFO
185 extern int aarch32_setup_vectors_page(struct linux_binprm *bprm,
187 #define compat_arch_setup_additional_pages \
188 aarch32_setup_vectors_page
190 #endif /* CONFIG_COMPAT */