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1da177e4 LT |
1 | /* |
2 | * include/asm-s390/elf.h | |
3 | * | |
4 | * S390 version | |
5 | * | |
6 | * Derived from "include/asm-i386/elf.h" | |
7 | */ | |
8 | ||
9 | #ifndef __ASMS390_ELF_H | |
10 | #define __ASMS390_ELF_H | |
11 | ||
12 | /* s390 relocations defined by the ABIs */ | |
13 | #define R_390_NONE 0 /* No reloc. */ | |
14 | #define R_390_8 1 /* Direct 8 bit. */ | |
15 | #define R_390_12 2 /* Direct 12 bit. */ | |
16 | #define R_390_16 3 /* Direct 16 bit. */ | |
17 | #define R_390_32 4 /* Direct 32 bit. */ | |
18 | #define R_390_PC32 5 /* PC relative 32 bit. */ | |
19 | #define R_390_GOT12 6 /* 12 bit GOT offset. */ | |
20 | #define R_390_GOT32 7 /* 32 bit GOT offset. */ | |
21 | #define R_390_PLT32 8 /* 32 bit PC relative PLT address. */ | |
22 | #define R_390_COPY 9 /* Copy symbol at runtime. */ | |
23 | #define R_390_GLOB_DAT 10 /* Create GOT entry. */ | |
24 | #define R_390_JMP_SLOT 11 /* Create PLT entry. */ | |
25 | #define R_390_RELATIVE 12 /* Adjust by program base. */ | |
26 | #define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */ | |
27 | #define R_390_GOTPC 14 /* 32 bit PC rel. offset to GOT. */ | |
28 | #define R_390_GOT16 15 /* 16 bit GOT offset. */ | |
29 | #define R_390_PC16 16 /* PC relative 16 bit. */ | |
30 | #define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */ | |
31 | #define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */ | |
32 | #define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */ | |
33 | #define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */ | |
34 | #define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */ | |
35 | #define R_390_64 22 /* Direct 64 bit. */ | |
36 | #define R_390_PC64 23 /* PC relative 64 bit. */ | |
37 | #define R_390_GOT64 24 /* 64 bit GOT offset. */ | |
38 | #define R_390_PLT64 25 /* 64 bit PC relative PLT address. */ | |
39 | #define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */ | |
40 | #define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */ | |
41 | #define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */ | |
42 | #define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */ | |
43 | #define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */ | |
44 | #define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */ | |
45 | #define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */ | |
46 | #define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */ | |
47 | #define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */ | |
48 | #define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */ | |
49 | #define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */ | |
50 | #define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */ | |
51 | #define R_390_TLS_GDCALL 38 /* Tag for function call in general | |
52 | dynamic TLS code. */ | |
53 | #define R_390_TLS_LDCALL 39 /* Tag for function call in local | |
54 | dynamic TLS code. */ | |
55 | #define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic | |
56 | thread local data. */ | |
57 | #define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic | |
58 | thread local data. */ | |
59 | #define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS | |
60 | block offset. */ | |
61 | #define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS | |
62 | block offset. */ | |
63 | #define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS | |
64 | block offset. */ | |
65 | #define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic | |
66 | thread local data in LD code. */ | |
67 | #define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic | |
68 | thread local data in LD code. */ | |
69 | #define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for | |
70 | negated static TLS block offset. */ | |
71 | #define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for | |
72 | negated static TLS block offset. */ | |
73 | #define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for | |
74 | negated static TLS block offset. */ | |
75 | #define R_390_TLS_LE32 50 /* 32 bit negated offset relative to | |
76 | static TLS block. */ | |
77 | #define R_390_TLS_LE64 51 /* 64 bit negated offset relative to | |
78 | static TLS block. */ | |
79 | #define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS | |
80 | block. */ | |
81 | #define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS | |
82 | block. */ | |
83 | #define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */ | |
84 | #define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */ | |
85 | #define R_390_TLS_TPOFF 56 /* Negate offset in static TLS | |
86 | block. */ | |
87 | #define R_390_20 57 /* Direct 20 bit. */ | |
88 | #define R_390_GOT20 58 /* 20 bit GOT offset. */ | |
89 | #define R_390_GOTPLT20 59 /* 20 bit offset to jump slot. */ | |
90 | #define R_390_TLS_GOTIE20 60 /* 20 bit GOT offset for static TLS | |
91 | block offset. */ | |
92 | /* Keep this the last entry. */ | |
93 | #define R_390_NUM 61 | |
94 | ||
ea2a4d3a HC |
95 | /* Bits present in AT_HWCAP. */ |
96 | #define HWCAP_S390_ESAN3 1 | |
97 | #define HWCAP_S390_ZARCH 2 | |
98 | #define HWCAP_S390_STFLE 4 | |
99 | #define HWCAP_S390_MSA 8 | |
100 | #define HWCAP_S390_LDISP 16 | |
101 | #define HWCAP_S390_EIMM 32 | |
102 | #define HWCAP_S390_DFP 64 | |
103 | #define HWCAP_S390_HPAGE 128 | |
104 | #define HWCAP_S390_ETF3EH 256 | |
105 | #define HWCAP_S390_HIGH_GPRS 512 | |
106 | ||
1da177e4 LT |
107 | /* |
108 | * These are used to set parameters in the core dumps. | |
109 | */ | |
110 | #ifndef __s390x__ | |
111 | #define ELF_CLASS ELFCLASS32 | |
112 | #else /* __s390x__ */ | |
113 | #define ELF_CLASS ELFCLASS64 | |
114 | #endif /* __s390x__ */ | |
115 | #define ELF_DATA ELFDATA2MSB | |
116 | #define ELF_ARCH EM_S390 | |
117 | ||
124b51c7 DW |
118 | /* |
119 | * ELF register definitions.. | |
120 | */ | |
121 | ||
122 | #include <asm/ptrace.h> | |
123 | #include <asm/user.h> | |
124 | ||
125 | typedef s390_fp_regs elf_fpregset_t; | |
126 | typedef s390_regs elf_gregset_t; | |
127 | ||
63506c41 MS |
128 | typedef s390_fp_regs compat_elf_fpregset_t; |
129 | typedef s390_compat_regs compat_elf_gregset_t; | |
130 | ||
124b51c7 DW |
131 | #include <linux/sched.h> /* for task_struct */ |
132 | #include <asm/system.h> /* for save_access_regs */ | |
146e4b3c | 133 | #include <asm/mmu_context.h> |
124b51c7 | 134 | |
b020632e MS |
135 | #include <asm/vdso.h> |
136 | ||
137 | extern unsigned int vdso_enabled; | |
138 | ||
1da177e4 LT |
139 | /* |
140 | * This is used to ensure we don't load something for the wrong architecture. | |
141 | */ | |
142 | #define elf_check_arch(x) \ | |
143 | (((x)->e_machine == EM_S390 || (x)->e_machine == EM_S390_OLD) \ | |
144 | && (x)->e_ident[EI_CLASS] == ELF_CLASS) | |
63506c41 MS |
145 | #define compat_elf_check_arch(x) \ |
146 | (((x)->e_machine == EM_S390 || (x)->e_machine == EM_S390_OLD) \ | |
147 | && (x)->e_ident[EI_CLASS] == ELF_CLASS) | |
148 | #define compat_start_thread start_thread31 | |
1da177e4 LT |
149 | |
150 | /* For SVR4/S390 the function pointer to be registered with `atexit` is | |
151 | passed in R14. */ | |
152 | #define ELF_PLAT_INIT(_r, load_addr) \ | |
153 | do { \ | |
154 | _r->gprs[14] = 0; \ | |
155 | } while (0) | |
156 | ||
63506c41 | 157 | #define CORE_DUMP_USE_REGSET |
1da177e4 LT |
158 | #define ELF_EXEC_PAGESIZE 4096 |
159 | ||
160 | /* This is the location that an ET_DYN program is loaded if exec'ed. Typical | |
161 | use of this is to invoke "./ld.so someprog" to test out a new version of | |
162 | the loader. We need to make sure that it is out of the way of the program | |
163 | that it will "exec", and that there is sufficient room for the brk. */ | |
d2c9dfcc HC |
164 | |
165 | extern unsigned long randomize_et_dyn(unsigned long base); | |
166 | #define ELF_ET_DYN_BASE (randomize_et_dyn(STACK_TOP / 3 * 2)) | |
1da177e4 | 167 | |
1da177e4 LT |
168 | /* This yields a mask that user programs can use to figure out what |
169 | instruction set this CPU supports. */ | |
170 | ||
cf8ba7a9 MS |
171 | extern unsigned long elf_hwcap; |
172 | #define ELF_HWCAP (elf_hwcap) | |
1da177e4 LT |
173 | |
174 | /* This yields a string that ld.so will use to load implementation | |
175 | specific libraries for optimization. This is more specific in | |
176 | intent than poking at uname or /proc/cpuinfo. | |
177 | ||
178 | For the moment, we have only optimizations for the Intel generations, | |
179 | but that could change... */ | |
180 | ||
cf8ba7a9 MS |
181 | #define ELF_PLATFORM_SIZE 8 |
182 | extern char elf_platform[]; | |
183 | #define ELF_PLATFORM (elf_platform) | |
1da177e4 | 184 | |
1da177e4 | 185 | #ifndef __s390x__ |
0b592682 | 186 | #define SET_PERSONALITY(ex) set_personality(PER_LINUX) |
1da177e4 | 187 | #else /* __s390x__ */ |
03e4c49f HC |
188 | #define SET_PERSONALITY(ex) \ |
189 | do { \ | |
190 | if (personality(current->personality) != PER_LINUX32) \ | |
f9783ec8 MS |
191 | set_personality(PER_LINUX | \ |
192 | (current->personality & ~PER_MASK)); \ | |
03e4c49f HC |
193 | if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \ |
194 | set_thread_flag(TIF_31BIT); \ | |
195 | else \ | |
196 | clear_thread_flag(TIF_31BIT); \ | |
1da177e4 LT |
197 | } while (0) |
198 | #endif /* __s390x__ */ | |
1da177e4 | 199 | |
9046e401 HC |
200 | #define STACK_RND_MASK 0x7ffUL |
201 | ||
b020632e MS |
202 | #define ARCH_DLINFO \ |
203 | do { \ | |
204 | if (vdso_enabled) \ | |
205 | NEW_AUX_ENT(AT_SYSINFO_EHDR, \ | |
206 | (unsigned long)current->mm->context.vdso_base); \ | |
207 | } while (0) | |
208 | ||
209 | struct linux_binprm; | |
210 | ||
211 | #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 | |
212 | int arch_setup_additional_pages(struct linux_binprm *, int); | |
213 | ||
33519182 HC |
214 | extern unsigned long arch_randomize_brk(struct mm_struct *mm); |
215 | #define arch_randomize_brk arch_randomize_brk | |
216 | ||
1da177e4 | 217 | #endif |