| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Catalin Marinas | 346 | 52.58% | 2 | 8.70% |
| Dave P Martin | 184 | 27.96% | 2 | 8.70% |
| Will Deacon | 44 | 6.69% | 3 | 13.04% |
| Ard Biesheuvel | 41 | 6.23% | 2 | 8.70% |
| Vincenzo Frascino | 16 | 2.43% | 3 | 13.04% |
| Steve Capper | 13 | 1.98% | 2 | 8.70% |
| Kees Cook | 6 | 0.91% | 4 | 17.39% |
| Thomas Gleixner | 2 | 0.30% | 1 | 4.35% |
| Pratyush Anand | 2 | 0.30% | 1 | 4.35% |
| Yury Norov | 2 | 0.30% | 1 | 4.35% |
| Ben Hutchings | 1 | 0.15% | 1 | 4.35% |
| James Hogan | 1 | 0.15% | 1 | 4.35% |
| Total | 658 | 23 |
/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2012 ARM Ltd. */ #ifndef __ASM_ELF_H #define __ASM_ELF_H #include <asm/hwcap.h> /* * ELF register definitions.. */ #include <asm/ptrace.h> #include <asm/user.h> /* * 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 #define R_AARCH64_RELATIVE 1027 /* * 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) /* * An executable for which elf_read_implies_exec() returns TRUE will * have the READ_IMPLIES_EXEC personality flag set automatically. * * The decision process for determining the results are: * * CPU*: | arm32 | arm64 | * ELF: | | | * ---------------------|------------|------------| * missing PT_GNU_STACK | exec-all | exec-none | * PT_GNU_STACK == RWX | exec-stack | exec-stack | * PT_GNU_STACK == RW | exec-none | exec-none | * * exec-all : all PROT_READ user mappings are executable, except when * backed by files on a noexec-filesystem. * exec-none : only PROT_EXEC user mappings are executable. * exec-stack: only the stack and PROT_EXEC user mappings are executable. * * *all arm64 CPUs support NX, so there is no "lacks NX" column. * */ #define compat_elf_read_implies_exec(ex, stk) (stk == EXSTACK_DEFAULT) #define CORE_DUMP_USE_REGSET #define ELF_EXEC_PAGESIZE PAGE_SIZE /* * This is the base location for PIE (ET_DYN with INTERP) loads. On * 64-bit, this is above 4GB to leave the entire 32-bit address * space open for things that want to use the area for 32-bit pointers. */ #ifdef CONFIG_ARM64_FORCE_52BIT #define ELF_ET_DYN_BASE (2 * TASK_SIZE_64 / 3) #else #define ELF_ET_DYN_BASE (2 * DEFAULT_MAP_WINDOW_64 / 3) #endif /* CONFIG_ARM64_FORCE_52BIT */ #ifndef __ASSEMBLY__ #include <uapi/linux/elf.h> #include <linux/bug.h> #include <linux/errno.h> #include <linux/fs.h> #include <linux/types.h> #include <asm/processor.h> /* for signal_minsigstksz, used by ARCH_DLINFO */ 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; /* * 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); \ current->personality &= ~READ_IMPLIES_EXEC; \ }) /* 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); \ \ /* \ * Should always be nonzero unless there's a kernel bug. \ * If we haven't determined a sensible value to give to \ * userspace, omit the entry: \ */ \ if (likely(signal_minsigstksz)) \ NEW_AUX_ENT(AT_MINSIGSTKSZ, signal_minsigstksz); \ else \ NEW_AUX_ENT(AT_IGNORE, 0); \ } 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 /* PIE load location for compat arm. Must match ARM ELF_ET_DYN_BASE. */ #define COMPAT_ELF_ET_DYN_BASE 0x000400000UL /* 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 int compat_elf_check_arch(const struct elf32_hdr *); #define compat_elf_check_arch compat_elf_check_arch #define compat_start_thread compat_start_thread /* * Unlike the native SET_PERSONALITY macro, the compat version maintains * READ_IMPLIES_EXEC across an execve() since this is the behaviour on * arch/arm/. */ #define COMPAT_SET_PERSONALITY(ex) \ ({ \ set_thread_flag(TIF_32BIT); \ }) #ifdef CONFIG_COMPAT_VDSO #define COMPAT_ARCH_DLINFO \ do { \ /* \ * Note that we use Elf64_Off instead of elf_addr_t because \ * elf_addr_t in compat is defined as Elf32_Addr and casting \ * current->mm->context.vdso to it triggers a cast warning of \ * cast from pointer to integer of different size. \ */ \ NEW_AUX_ENT(AT_SYSINFO_EHDR, \ (Elf64_Off)current->mm->context.vdso); \ } while (0) #else #define COMPAT_ARCH_DLINFO #endif extern int aarch32_setup_additional_pages(struct linux_binprm *bprm, int uses_interp); #define compat_arch_setup_additional_pages \ aarch32_setup_additional_pages #endif /* CONFIG_COMPAT */ struct arch_elf_state { int flags; }; #define ARM64_ELF_BTI (1 << 0) #define INIT_ARCH_ELF_STATE { \ .flags = 0, \ } static inline int arch_parse_elf_property(u32 type, const void *data, size_t datasz, bool compat, struct arch_elf_state *arch) { /* No known properties for AArch32 yet */ if (IS_ENABLED(CONFIG_COMPAT) && compat) return 0; if (type == GNU_PROPERTY_AARCH64_FEATURE_1_AND) { const u32 *p = data; if (datasz != sizeof(*p)) return -ENOEXEC; if (system_supports_bti() && (*p & GNU_PROPERTY_AARCH64_FEATURE_1_BTI)) arch->flags |= ARM64_ELF_BTI; } return 0; } static inline int arch_elf_pt_proc(void *ehdr, void *phdr, struct file *f, bool is_interp, struct arch_elf_state *state) { return 0; } static inline int arch_check_elf(void *ehdr, bool has_interp, void *interp_ehdr, struct arch_elf_state *state) { return 0; } #endif /* !__ASSEMBLY__ */ #endif
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