/* SPDX-License-Identifier: GPL-2.0 */ /* * S390 version * * Derived from "include/asm-i386/elf.h" */ #ifndef __ASMS390_ELF_H #define __ASMS390_ELF_H /* s390 relocations defined by the ABIs */ #define R_390_NONE 0 /* No reloc. */ #define R_390_8 1 /* Direct 8 bit. */ #define R_390_12 2 /* Direct 12 bit. */ #define R_390_16 3 /* Direct 16 bit. */ #define R_390_32 4 /* Direct 32 bit. */ #define R_390_PC32 5 /* PC relative 32 bit. */ #define R_390_GOT12 6 /* 12 bit GOT offset. */ #define R_390_GOT32 7 /* 32 bit GOT offset. */ #define R_390_PLT32 8 /* 32 bit PC relative PLT address. */ #define R_390_COPY 9 /* Copy symbol at runtime. */ #define R_390_GLOB_DAT 10 /* Create GOT entry. */ #define R_390_JMP_SLOT 11 /* Create PLT entry. */ #define R_390_RELATIVE 12 /* Adjust by program base. */ #define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */ #define R_390_GOTPC 14 /* 32 bit PC rel. offset to GOT. */ #define R_390_GOT16 15 /* 16 bit GOT offset. */ #define R_390_PC16 16 /* PC relative 16 bit. */ #define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */ #define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */ #define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */ #define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */ #define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */ #define R_390_64 22 /* Direct 64 bit. */ #define R_390_PC64 23 /* PC relative 64 bit. */ #define R_390_GOT64 24 /* 64 bit GOT offset. */ #define R_390_PLT64 25 /* 64 bit PC relative PLT address. */ #define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */ #define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */ #define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */ #define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */ #define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */ #define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */ #define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */ #define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */ #define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */ #define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */ #define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */ #define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */ #define R_390_TLS_GDCALL 38 /* Tag for function call in general dynamic TLS code. */ #define R_390_TLS_LDCALL 39 /* Tag for function call in local dynamic TLS code. */ #define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic thread local data. */ #define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic thread local data. */ #define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS block offset. */ #define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS block offset. */ #define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS block offset. */ #define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic thread local data in LD code. */ #define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic thread local data in LD code. */ #define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for negated static TLS block offset. */ #define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for negated static TLS block offset. */ #define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for negated static TLS block offset. */ #define R_390_TLS_LE32 50 /* 32 bit negated offset relative to static TLS block. */ #define R_390_TLS_LE64 51 /* 64 bit negated offset relative to static TLS block. */ #define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS block. */ #define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS block. */ #define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */ #define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */ #define R_390_TLS_TPOFF 56 /* Negate offset in static TLS block. */ #define R_390_20 57 /* Direct 20 bit. */ #define R_390_GOT20 58 /* 20 bit GOT offset. */ #define R_390_GOTPLT20 59 /* 20 bit offset to jump slot. */ #define R_390_TLS_GOTIE20 60 /* 20 bit GOT offset for static TLS block offset. */ /* Keep this the last entry. */ #define R_390_NUM 61 /* Bits present in AT_HWCAP. */ #define HWCAP_S390_ESAN3 1 #define HWCAP_S390_ZARCH 2 #define HWCAP_S390_STFLE 4 #define HWCAP_S390_MSA 8 #define HWCAP_S390_LDISP 16 #define HWCAP_S390_EIMM 32 #define HWCAP_S390_DFP 64 #define HWCAP_S390_HPAGE 128 #define HWCAP_S390_ETF3EH 256 #define HWCAP_S390_HIGH_GPRS 512 #define HWCAP_S390_TE 1024 #define HWCAP_S390_VXRS 2048 #define HWCAP_S390_VXRS_BCD 4096 #define HWCAP_S390_VXRS_EXT 8192 #define HWCAP_S390_GS 16384 /* Internal bits, not exposed via elf */ #define HWCAP_INT_SIE 1UL /* * These are used to set parameters in the core dumps. */ #define ELF_CLASS ELFCLASS64 #define ELF_DATA ELFDATA2MSB #define ELF_ARCH EM_S390 /* s390 specific phdr types */ #define PT_S390_PGSTE 0x70000000 /* * ELF register definitions.. */ #include #include #include #include typedef s390_fp_regs elf_fpregset_t; typedef s390_regs elf_gregset_t; typedef s390_fp_regs compat_elf_fpregset_t; typedef s390_compat_regs compat_elf_gregset_t; #include #include /* for task_struct */ #include #include extern unsigned int vdso_enabled; /* * This is used to ensure we don't load something for the wrong architecture. */ #define elf_check_arch(x) \ (((x)->e_machine == EM_S390 || (x)->e_machine == EM_S390_OLD) \ && (x)->e_ident[EI_CLASS] == ELF_CLASS) #define compat_elf_check_arch(x) \ (((x)->e_machine == EM_S390 || (x)->e_machine == EM_S390_OLD) \ && (x)->e_ident[EI_CLASS] == ELF_CLASS) #define compat_start_thread start_thread31 struct arch_elf_state { int rc; }; #define INIT_ARCH_ELF_STATE { .rc = 0 } #define arch_check_elf(ehdr, interp, interp_ehdr, state) (0) #ifdef CONFIG_PGSTE #define arch_elf_pt_proc(ehdr, phdr, elf, interp, state) \ ({ \ struct arch_elf_state *_state = state; \ if ((phdr)->p_type == PT_S390_PGSTE && \ !page_table_allocate_pgste && \ !test_thread_flag(TIF_PGSTE) && \ !current->mm->context.alloc_pgste) { \ set_thread_flag(TIF_PGSTE); \ set_pt_regs_flag(task_pt_regs(current), \ PIF_SYSCALL_RESTART); \ _state->rc = -EAGAIN; \ } \ _state->rc; \ }) #else #define arch_elf_pt_proc(ehdr, phdr, elf, interp, state) \ ({ \ (state)->rc; \ }) #endif /* For SVR4/S390 the function pointer to be registered with `atexit` is passed in R14. */ #define ELF_PLAT_INIT(_r, load_addr) \ do { \ _r->gprs[14] = 0; \ } while (0) #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 raised to 4GB to leave the entire 32-bit address * space open for things that want to use the area for 32-bit pointers. */ #define ELF_ET_DYN_BASE (is_compat_task() ? 0x000400000UL : \ 0x100000000UL) /* This yields a mask that user programs can use to figure out what instruction set this CPU supports. */ extern unsigned long elf_hwcap; #define ELF_HWCAP (elf_hwcap) /* Internal hardware capabilities, not exposed via elf */ extern unsigned long int_hwcap; /* 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. For the moment, we have only optimizations for the Intel generations, but that could change... */ #define ELF_PLATFORM_SIZE 8 extern char elf_platform[]; #define ELF_PLATFORM (elf_platform) #ifndef CONFIG_COMPAT #define SET_PERSONALITY(ex) \ do { \ set_personality(PER_LINUX | \ (current->personality & (~PER_MASK))); \ current->thread.sys_call_table = \ (unsigned long) &sys_call_table; \ } while (0) #else /* CONFIG_COMPAT */ #define SET_PERSONALITY(ex) \ do { \ if (personality(current->personality) != PER_LINUX32) \ set_personality(PER_LINUX | \ (current->personality & ~PER_MASK)); \ if ((ex).e_ident[EI_CLASS] == ELFCLASS32) { \ set_thread_flag(TIF_31BIT); \ current->thread.sys_call_table = \ (unsigned long) &sys_call_table_emu; \ } else { \ clear_thread_flag(TIF_31BIT); \ current->thread.sys_call_table = \ (unsigned long) &sys_call_table; \ } \ } while (0) #endif /* CONFIG_COMPAT */ /* * Cache aliasing on the latest machines calls for a mapping granularity * of 512KB. For 64-bit processes use a 512KB alignment and a randomization * of up to 1GB. For 31-bit processes the virtual address space is limited, * use no alignment and limit the randomization to 8MB. */ #define BRK_RND_MASK (is_compat_task() ? 0x7ffUL : 0x3ffffUL) #define MMAP_RND_MASK (is_compat_task() ? 0x7ffUL : 0x3ff80UL) #define MMAP_ALIGN_MASK (is_compat_task() ? 0 : 0x7fUL) #define STACK_RND_MASK MMAP_RND_MASK /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */ #define ARCH_DLINFO \ do { \ if (vdso_enabled) \ NEW_AUX_ENT(AT_SYSINFO_EHDR, \ (unsigned long)current->mm->context.vdso_base); \ } while (0) struct linux_binprm; #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 int arch_setup_additional_pages(struct linux_binprm *, int); #endif