c45647f9f5
- Rework phys/virt translation - Add KASan support - Move DT out of linear map region - Use more PC-relative addressing in assembly - Remove FP emulation handling while in kernel mode - Link with '-z norelro' - remove old check for GCC <= 4.2 in ARM unwinder code - disable big endian if using clang's linker -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEuNNh8scc2k/wOAE+9OeQG+StrGQFAl/ghq0ACgkQ9OeQG+St rGQXsxAAilC+P06NRN3etSFOnJH8GzGNu89wbVW/0lft89o+EpN8oZ9kEYRdb4d1 AJ1z4kGN0akKKNWWeg+1c2YzXh4xGvT1th1TzbBpCf8BxoMHFCSS1IZ98LZ3iiqy bpMRpq2LJG+Va/5lkPnkY7e2sL9Jj5BxFdHAYUUg1Ipc0tfh7hXWLnRMohE1EYmu E69AHTfyWs9ojgspCSg3KoUQ3eXUiaBslf8U4/zFhtmA9lwiOOozZ4ZRRgDWqI75 bp6pGzxpqXIFdD1QyThgSb3gvVBahbsYN7kj1fmD5LokBVWxHawCyzkCzNzKEfDL ES+gc/wTewxwN928cjB5vfmOrAvd1T6amh/gsr39WnOIFngEPAGMBfApXAzhffsc L5TYaDI3DNbQ75FCySfVV2VwQhSW03XQHYtElVxzc2Z1Q1Q9yoscqLzgHDgDy3LM 8s4CRviVtOzP9e/rNx48lUxgdQHmAjQ+dI4Y9NVxyphQzK0LLTv5Uc4zy/nG0F27 QIFtGCDz3PHDPWLzGBudYcu9HAqwXVhZXf9pMeYgwgvmqBdz0BFbXhEbZaup6oDl H5k4iAZh3ADW38+8Vhp/D7CGDhznZm2dFNrgreJm2tHTEwd5xgpsUj1MaAMCcPbr HTxiy0i4p9wN1jl9iWFD4A3/KsBvAIJFB+wqqJOyWku0FikntjU= =fZGX -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux Pull ARM updates from Russell King: - Rework phys/virt translation - Add KASan support - Move DT out of linear map region - Use more PC-relative addressing in assembly - Remove FP emulation handling while in kernel mode - Link with '-z norelro' - remove old check for GCC <= 4.2 in ARM unwinder code - disable big endian if using clang's linker * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (46 commits) ARM: 9027/1: head.S: explicitly map DT even if it lives in the first physical section ARM: 9038/1: Link with '-z norelro' ARM: 9037/1: uncompress: Add OF_DT_MAGIC macro ARM: 9036/1: uncompress: Fix dbgadtb size parameter name ARM: 9035/1: uncompress: Add be32tocpu macro ARM: 9033/1: arm/smp: Drop the macro S(x,s) ARM: 9032/1: arm/mm: Convert PUD level pgtable helper macros into functions ARM: 9031/1: hyp-stub: remove unused .L__boot_cpu_mode_offset symbol ARM: 9044/1: vfp: use undef hook for VFP support detection ARM: 9034/1: __div64_32(): straighten up inline asm constraints ARM: 9030/1: entry: omit FP emulation for UND exceptions taken in kernel mode ARM: 9029/1: Make iwmmxt.S support Clang's integrated assembler ARM: 9028/1: disable KASAN in call stack capturing routines ARM: 9026/1: unwind: remove old check for GCC <= 4.2 ARM: 9025/1: Kconfig: CPU_BIG_ENDIAN depends on !LD_IS_LLD ARM: 9024/1: Drop useless cast of "u64" to "long long" ARM: 9023/1: Spelling s/mmeory/memory/ ARM: 9022/1: Change arch/arm/lib/mem*.S to use WEAK instead of .weak ARM: kvm: replace open coded VA->PA calculations with adr_l call ARM: head.S: use PC relative insn sequence to calculate PHYS_OFFSET ...
154 lines
4.5 KiB
C
154 lines
4.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASMARM_ELF_H
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#define __ASMARM_ELF_H
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#include <asm/auxvec.h>
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#include <asm/hwcap.h>
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#include <asm/vdso_datapage.h>
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/*
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* ELF register definitions..
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*/
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#include <asm/ptrace.h>
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#include <asm/user.h>
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struct task_struct;
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typedef unsigned long elf_greg_t;
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typedef unsigned long elf_freg_t[3];
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#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
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typedef elf_greg_t elf_gregset_t[ELF_NGREG];
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typedef struct user_fp elf_fpregset_t;
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#define EF_ARM_EABI_MASK 0xff000000
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#define EF_ARM_EABI_UNKNOWN 0x00000000
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#define EF_ARM_EABI_VER1 0x01000000
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#define EF_ARM_EABI_VER2 0x02000000
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#define EF_ARM_EABI_VER3 0x03000000
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#define EF_ARM_EABI_VER4 0x04000000
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#define EF_ARM_EABI_VER5 0x05000000
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#define EF_ARM_BE8 0x00800000 /* ABI 4,5 */
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#define EF_ARM_LE8 0x00400000 /* ABI 4,5 */
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#define EF_ARM_MAVERICK_FLOAT 0x00000800 /* ABI 0 */
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#define EF_ARM_VFP_FLOAT 0x00000400 /* ABI 0 */
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#define EF_ARM_SOFT_FLOAT 0x00000200 /* ABI 0 */
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#define EF_ARM_OLD_ABI 0x00000100 /* ABI 0 */
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#define EF_ARM_NEW_ABI 0x00000080 /* ABI 0 */
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#define EF_ARM_ALIGN8 0x00000040 /* ABI 0 */
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#define EF_ARM_PIC 0x00000020 /* ABI 0 */
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#define EF_ARM_MAPSYMSFIRST 0x00000010 /* ABI 2 */
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#define EF_ARM_APCS_FLOAT 0x00000010 /* ABI 0, floats in fp regs */
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#define EF_ARM_DYNSYMSUSESEGIDX 0x00000008 /* ABI 2 */
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#define EF_ARM_APCS_26 0x00000008 /* ABI 0 */
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#define EF_ARM_SYMSARESORTED 0x00000004 /* ABI 1,2 */
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#define EF_ARM_INTERWORK 0x00000004 /* ABI 0 */
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#define EF_ARM_HASENTRY 0x00000002 /* All */
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#define EF_ARM_RELEXEC 0x00000001 /* All */
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#define R_ARM_NONE 0
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#define R_ARM_PC24 1
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#define R_ARM_ABS32 2
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#define R_ARM_REL32 3
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#define R_ARM_CALL 28
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#define R_ARM_JUMP24 29
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#define R_ARM_TARGET1 38
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#define R_ARM_V4BX 40
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#define R_ARM_PREL31 42
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#define R_ARM_MOVW_ABS_NC 43
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#define R_ARM_MOVT_ABS 44
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#define R_ARM_MOVW_PREL_NC 45
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#define R_ARM_MOVT_PREL 46
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#define R_ARM_THM_CALL 10
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#define R_ARM_THM_JUMP24 30
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#define R_ARM_THM_MOVW_ABS_NC 47
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#define R_ARM_THM_MOVT_ABS 48
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#define R_ARM_THM_MOVW_PREL_NC 49
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#define R_ARM_THM_MOVT_PREL 50
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/*
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* These are used to set parameters in the core dumps.
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*/
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#define ELF_CLASS ELFCLASS32
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#ifdef __ARMEB__
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#define ELF_DATA ELFDATA2MSB
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#else
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#define ELF_DATA ELFDATA2LSB
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#endif
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#define ELF_ARCH EM_ARM
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/*
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* This yields a string that ld.so will use to load implementation
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* specific libraries for optimization. This is more specific in
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* intent than poking at uname or /proc/cpuinfo.
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*
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* For now we just provide a fairly general string that describes the
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* processor family. This could be made more specific later if someone
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* implemented optimisations that require it. 26-bit CPUs give you
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* "v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't
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* supported). 32-bit CPUs give you "v3[lb]" for anything based on an
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* ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1
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* core.
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*/
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#define ELF_PLATFORM_SIZE 8
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#define ELF_PLATFORM (elf_platform)
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extern char elf_platform[];
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struct elf32_hdr;
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/*
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* This is used to ensure we don't load something for the wrong architecture.
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*/
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extern int elf_check_arch(const struct elf32_hdr *);
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#define elf_check_arch elf_check_arch
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#define ELFOSABI_ARM_FDPIC 65 /* ARM FDPIC platform */
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#define elf_check_fdpic(x) ((x)->e_ident[EI_OSABI] == ELFOSABI_ARM_FDPIC)
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#define elf_check_const_displacement(x) ((x)->e_flags & EF_ARM_PIC)
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#define ELF_FDPIC_CORE_EFLAGS 0
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#define vmcore_elf64_check_arch(x) (0)
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extern int arm_elf_read_implies_exec(int);
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#define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(stk)
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#define CORE_DUMP_USE_REGSET
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#define ELF_EXEC_PAGESIZE 4096
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/* This is the base location for PIE (ET_DYN with INTERP) loads. */
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#define ELF_ET_DYN_BASE 0x400000UL
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/* When the program starts, a1 contains a pointer to a function to be
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registered with atexit, as per the SVR4 ABI. A value of 0 means we
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have no such handler. */
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#define ELF_PLAT_INIT(_r, load_addr) (_r)->ARM_r0 = 0
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#define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr, _interp_map_addr, dynamic_addr) \
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do { \
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(_r)->ARM_r7 = _exec_map_addr; \
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(_r)->ARM_r8 = _interp_map_addr; \
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(_r)->ARM_r9 = dynamic_addr; \
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} while(0)
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extern void elf_set_personality(const struct elf32_hdr *);
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#define SET_PERSONALITY(ex) elf_set_personality(&(ex))
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#ifdef CONFIG_MMU
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#ifdef CONFIG_VDSO
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#define ARCH_DLINFO \
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do { \
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NEW_AUX_ENT(AT_SYSINFO_EHDR, \
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(elf_addr_t)current->mm->context.vdso); \
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} while (0)
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#endif
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#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
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struct linux_binprm;
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int arch_setup_additional_pages(struct linux_binprm *, int);
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#endif
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#endif
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