Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * S390 version |
| 3 | * |
| 4 | * Derived from "include/asm-i386/elf.h" |
| 5 | */ |
| 6 | |
| 7 | #ifndef __ASMS390_ELF_H |
| 8 | #define __ASMS390_ELF_H |
| 9 | |
| 10 | /* s390 relocations defined by the ABIs */ |
| 11 | #define R_390_NONE 0 /* No reloc. */ |
| 12 | #define R_390_8 1 /* Direct 8 bit. */ |
| 13 | #define R_390_12 2 /* Direct 12 bit. */ |
| 14 | #define R_390_16 3 /* Direct 16 bit. */ |
| 15 | #define R_390_32 4 /* Direct 32 bit. */ |
| 16 | #define R_390_PC32 5 /* PC relative 32 bit. */ |
| 17 | #define R_390_GOT12 6 /* 12 bit GOT offset. */ |
| 18 | #define R_390_GOT32 7 /* 32 bit GOT offset. */ |
| 19 | #define R_390_PLT32 8 /* 32 bit PC relative PLT address. */ |
| 20 | #define R_390_COPY 9 /* Copy symbol at runtime. */ |
| 21 | #define R_390_GLOB_DAT 10 /* Create GOT entry. */ |
| 22 | #define R_390_JMP_SLOT 11 /* Create PLT entry. */ |
| 23 | #define R_390_RELATIVE 12 /* Adjust by program base. */ |
| 24 | #define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */ |
| 25 | #define R_390_GOTPC 14 /* 32 bit PC rel. offset to GOT. */ |
| 26 | #define R_390_GOT16 15 /* 16 bit GOT offset. */ |
| 27 | #define R_390_PC16 16 /* PC relative 16 bit. */ |
| 28 | #define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */ |
| 29 | #define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */ |
| 30 | #define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */ |
| 31 | #define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */ |
| 32 | #define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */ |
| 33 | #define R_390_64 22 /* Direct 64 bit. */ |
| 34 | #define R_390_PC64 23 /* PC relative 64 bit. */ |
| 35 | #define R_390_GOT64 24 /* 64 bit GOT offset. */ |
| 36 | #define R_390_PLT64 25 /* 64 bit PC relative PLT address. */ |
| 37 | #define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */ |
| 38 | #define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */ |
| 39 | #define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */ |
| 40 | #define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */ |
| 41 | #define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */ |
| 42 | #define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */ |
| 43 | #define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */ |
| 44 | #define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */ |
| 45 | #define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */ |
| 46 | #define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */ |
| 47 | #define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */ |
| 48 | #define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */ |
| 49 | #define R_390_TLS_GDCALL 38 /* Tag for function call in general |
| 50 | dynamic TLS code. */ |
| 51 | #define R_390_TLS_LDCALL 39 /* Tag for function call in local |
| 52 | dynamic TLS code. */ |
| 53 | #define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic |
| 54 | thread local data. */ |
| 55 | #define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic |
| 56 | thread local data. */ |
| 57 | #define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS |
| 58 | block offset. */ |
| 59 | #define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS |
| 60 | block offset. */ |
| 61 | #define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS |
| 62 | block offset. */ |
| 63 | #define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic |
| 64 | thread local data in LD code. */ |
| 65 | #define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic |
| 66 | thread local data in LD code. */ |
| 67 | #define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for |
| 68 | negated static TLS block offset. */ |
| 69 | #define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for |
| 70 | negated static TLS block offset. */ |
| 71 | #define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for |
| 72 | negated static TLS block offset. */ |
| 73 | #define R_390_TLS_LE32 50 /* 32 bit negated offset relative to |
| 74 | static TLS block. */ |
| 75 | #define R_390_TLS_LE64 51 /* 64 bit negated offset relative to |
| 76 | static TLS block. */ |
| 77 | #define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS |
| 78 | block. */ |
| 79 | #define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS |
| 80 | block. */ |
| 81 | #define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */ |
| 82 | #define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */ |
| 83 | #define R_390_TLS_TPOFF 56 /* Negate offset in static TLS |
| 84 | block. */ |
| 85 | #define R_390_20 57 /* Direct 20 bit. */ |
| 86 | #define R_390_GOT20 58 /* 20 bit GOT offset. */ |
| 87 | #define R_390_GOTPLT20 59 /* 20 bit offset to jump slot. */ |
| 88 | #define R_390_TLS_GOTIE20 60 /* 20 bit GOT offset for static TLS |
| 89 | block offset. */ |
| 90 | /* Keep this the last entry. */ |
| 91 | #define R_390_NUM 61 |
| 92 | |
Heiko Carstens | ea2a4d3 | 2009-10-06 10:34:13 +0200 | [diff] [blame] | 93 | /* Bits present in AT_HWCAP. */ |
| 94 | #define HWCAP_S390_ESAN3 1 |
| 95 | #define HWCAP_S390_ZARCH 2 |
| 96 | #define HWCAP_S390_STFLE 4 |
| 97 | #define HWCAP_S390_MSA 8 |
| 98 | #define HWCAP_S390_LDISP 16 |
| 99 | #define HWCAP_S390_EIMM 32 |
| 100 | #define HWCAP_S390_DFP 64 |
| 101 | #define HWCAP_S390_HPAGE 128 |
| 102 | #define HWCAP_S390_ETF3EH 256 |
| 103 | #define HWCAP_S390_HIGH_GPRS 512 |
Martin Schwidefsky | d35339a | 2012-07-31 11:03:04 +0200 | [diff] [blame] | 104 | #define HWCAP_S390_TE 1024 |
Heiko Carstens | ea2a4d3 | 2009-10-06 10:34:13 +0200 | [diff] [blame] | 105 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | * These are used to set parameters in the core dumps. |
| 108 | */ |
Heiko Carstens | f4815ac | 2012-05-23 16:24:51 +0200 | [diff] [blame] | 109 | #ifndef CONFIG_64BIT |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 110 | #define ELF_CLASS ELFCLASS32 |
Heiko Carstens | f4815ac | 2012-05-23 16:24:51 +0200 | [diff] [blame] | 111 | #else /* CONFIG_64BIT */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 112 | #define ELF_CLASS ELFCLASS64 |
Heiko Carstens | f4815ac | 2012-05-23 16:24:51 +0200 | [diff] [blame] | 113 | #endif /* CONFIG_64BIT */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 114 | #define ELF_DATA ELFDATA2MSB |
| 115 | #define ELF_ARCH EM_S390 |
| 116 | |
| 117 | /* |
David Woodhouse | 124b51c | 2006-09-16 12:15:46 -0700 | [diff] [blame] | 118 | * ELF register definitions.. |
| 119 | */ |
| 120 | |
| 121 | #include <asm/ptrace.h> |
Heiko Carstens | e4371f6 | 2013-04-20 14:05:42 +0200 | [diff] [blame^] | 122 | #include <asm/compat.h> |
David Woodhouse | 124b51c | 2006-09-16 12:15:46 -0700 | [diff] [blame] | 123 | #include <asm/user.h> |
| 124 | |
| 125 | typedef s390_fp_regs elf_fpregset_t; |
| 126 | typedef s390_regs elf_gregset_t; |
| 127 | |
Martin Schwidefsky | 63506c4 | 2008-07-14 09:58:54 +0200 | [diff] [blame] | 128 | typedef s390_fp_regs compat_elf_fpregset_t; |
| 129 | typedef s390_compat_regs compat_elf_gregset_t; |
| 130 | |
David Woodhouse | 124b51c | 2006-09-16 12:15:46 -0700 | [diff] [blame] | 131 | #include <linux/sched.h> /* for task_struct */ |
Martin Schwidefsky | 146e4b3 | 2008-02-09 18:24:35 +0100 | [diff] [blame] | 132 | #include <asm/mmu_context.h> |
David Woodhouse | 124b51c | 2006-09-16 12:15:46 -0700 | [diff] [blame] | 133 | |
Martin Schwidefsky | b020632 | 2008-12-25 13:38:36 +0100 | [diff] [blame] | 134 | #include <asm/vdso.h> |
| 135 | |
| 136 | extern unsigned int vdso_enabled; |
| 137 | |
David Woodhouse | 124b51c | 2006-09-16 12:15:46 -0700 | [diff] [blame] | 138 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | * This is used to ensure we don't load something for the wrong architecture. |
| 140 | */ |
| 141 | #define elf_check_arch(x) \ |
| 142 | (((x)->e_machine == EM_S390 || (x)->e_machine == EM_S390_OLD) \ |
| 143 | && (x)->e_ident[EI_CLASS] == ELF_CLASS) |
Martin Schwidefsky | 63506c4 | 2008-07-14 09:58:54 +0200 | [diff] [blame] | 144 | #define compat_elf_check_arch(x) \ |
| 145 | (((x)->e_machine == EM_S390 || (x)->e_machine == EM_S390_OLD) \ |
| 146 | && (x)->e_ident[EI_CLASS] == ELF_CLASS) |
| 147 | #define compat_start_thread start_thread31 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | |
| 149 | /* For SVR4/S390 the function pointer to be registered with `atexit` is |
| 150 | passed in R14. */ |
| 151 | #define ELF_PLAT_INIT(_r, load_addr) \ |
| 152 | do { \ |
| 153 | _r->gprs[14] = 0; \ |
| 154 | } while (0) |
| 155 | |
Martin Schwidefsky | 63506c4 | 2008-07-14 09:58:54 +0200 | [diff] [blame] | 156 | #define CORE_DUMP_USE_REGSET |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 157 | #define ELF_EXEC_PAGESIZE 4096 |
| 158 | |
| 159 | /* This is the location that an ET_DYN program is loaded if exec'ed. Typical |
| 160 | use of this is to invoke "./ld.so someprog" to test out a new version of |
| 161 | the loader. We need to make sure that it is out of the way of the program |
| 162 | that it will "exec", and that there is sufficient room for the brk. */ |
Heiko Carstens | d2c9dfc | 2011-01-12 09:55:31 +0100 | [diff] [blame] | 163 | |
| 164 | extern unsigned long randomize_et_dyn(unsigned long base); |
| 165 | #define ELF_ET_DYN_BASE (randomize_et_dyn(STACK_TOP / 3 * 2)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | /* This yields a mask that user programs can use to figure out what |
| 168 | instruction set this CPU supports. */ |
| 169 | |
Martin Schwidefsky | cf8ba7a | 2007-05-04 18:48:28 +0200 | [diff] [blame] | 170 | extern unsigned long elf_hwcap; |
| 171 | #define ELF_HWCAP (elf_hwcap) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | |
| 173 | /* This yields a string that ld.so will use to load implementation |
| 174 | specific libraries for optimization. This is more specific in |
| 175 | intent than poking at uname or /proc/cpuinfo. |
| 176 | |
| 177 | For the moment, we have only optimizations for the Intel generations, |
| 178 | but that could change... */ |
| 179 | |
Martin Schwidefsky | cf8ba7a | 2007-05-04 18:48:28 +0200 | [diff] [blame] | 180 | #define ELF_PLATFORM_SIZE 8 |
| 181 | extern char elf_platform[]; |
| 182 | #define ELF_PLATFORM (elf_platform) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | |
Al Viro | e72837e | 2013-02-17 17:47:04 -0500 | [diff] [blame] | 184 | #ifdef CONFIG_64BIT |
Heiko Carstens | 03e4c49 | 2009-01-23 16:40:23 +0100 | [diff] [blame] | 185 | #define SET_PERSONALITY(ex) \ |
| 186 | do { \ |
| 187 | if (personality(current->personality) != PER_LINUX32) \ |
Martin Schwidefsky | f9783ec | 2011-09-26 16:40:33 +0200 | [diff] [blame] | 188 | set_personality(PER_LINUX | \ |
| 189 | (current->personality & ~PER_MASK)); \ |
Heiko Carstens | 03e4c49 | 2009-01-23 16:40:23 +0100 | [diff] [blame] | 190 | if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ |
| 191 | set_thread_flag(TIF_31BIT); \ |
| 192 | else \ |
| 193 | clear_thread_flag(TIF_31BIT); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 194 | } while (0) |
Heiko Carstens | f4815ac | 2012-05-23 16:24:51 +0200 | [diff] [blame] | 195 | #endif /* CONFIG_64BIT */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | |
Heiko Carstens | 9046e40 | 2011-01-12 09:55:22 +0100 | [diff] [blame] | 197 | #define STACK_RND_MASK 0x7ffUL |
| 198 | |
Martin Schwidefsky | b020632 | 2008-12-25 13:38:36 +0100 | [diff] [blame] | 199 | #define ARCH_DLINFO \ |
| 200 | do { \ |
| 201 | if (vdso_enabled) \ |
| 202 | NEW_AUX_ENT(AT_SYSINFO_EHDR, \ |
| 203 | (unsigned long)current->mm->context.vdso_base); \ |
| 204 | } while (0) |
| 205 | |
| 206 | struct linux_binprm; |
| 207 | |
| 208 | #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 |
| 209 | int arch_setup_additional_pages(struct linux_binprm *, int); |
| 210 | |
Heiko Carstens | 3351918 | 2011-01-12 09:55:30 +0100 | [diff] [blame] | 211 | extern unsigned long arch_randomize_brk(struct mm_struct *mm); |
| 212 | #define arch_randomize_brk arch_randomize_brk |
| 213 | |
Heiko Carstens | 6b563d8 | 2012-09-14 14:11:32 +0200 | [diff] [blame] | 214 | void *fill_cpu_elf_notes(void *ptr, struct save_area *sa); |
| 215 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 216 | #endif |