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1da177e4 LT |
1 | #ifndef __ASM_SH_ELF_H |
2 | #define __ASM_SH_ELF_H | |
3 | ||
3bc24a1a | 4 | #include <linux/utsname.h> |
315bb968 PM |
5 | #include <asm/auxvec.h> |
6 | #include <asm/ptrace.h> | |
7 | #include <asm/user.h> | |
8 | ||
3bc24a1a PM |
9 | /* ELF header e_flags defines */ |
10 | #define EF_SH_PIC 0x100 /* -fpic */ | |
11 | #define EF_SH_FDPIC 0x8000 /* -mfdpic */ | |
12 | ||
b542ad11 | 13 | /* SH (particularly SHcompact) relocation types */ |
1da177e4 LT |
14 | #define R_SH_NONE 0 |
15 | #define R_SH_DIR32 1 | |
16 | #define R_SH_REL32 2 | |
17 | #define R_SH_DIR8WPN 3 | |
18 | #define R_SH_IND12W 4 | |
19 | #define R_SH_DIR8WPL 5 | |
20 | #define R_SH_DIR8WPZ 6 | |
21 | #define R_SH_DIR8BP 7 | |
22 | #define R_SH_DIR8W 8 | |
23 | #define R_SH_DIR8L 9 | |
24 | #define R_SH_SWITCH16 25 | |
25 | #define R_SH_SWITCH32 26 | |
26 | #define R_SH_USES 27 | |
27 | #define R_SH_COUNT 28 | |
28 | #define R_SH_ALIGN 29 | |
29 | #define R_SH_CODE 30 | |
30 | #define R_SH_DATA 31 | |
31 | #define R_SH_LABEL 32 | |
32 | #define R_SH_SWITCH8 33 | |
33 | #define R_SH_GNU_VTINHERIT 34 | |
34 | #define R_SH_GNU_VTENTRY 35 | |
35 | #define R_SH_TLS_GD_32 144 | |
36 | #define R_SH_TLS_LD_32 145 | |
37 | #define R_SH_TLS_LDO_32 146 | |
38 | #define R_SH_TLS_IE_32 147 | |
39 | #define R_SH_TLS_LE_32 148 | |
40 | #define R_SH_TLS_DTPMOD32 149 | |
41 | #define R_SH_TLS_DTPOFF32 150 | |
42 | #define R_SH_TLS_TPOFF32 151 | |
43 | #define R_SH_GOT32 160 | |
44 | #define R_SH_PLT32 161 | |
45 | #define R_SH_COPY 162 | |
46 | #define R_SH_GLOB_DAT 163 | |
47 | #define R_SH_JMP_SLOT 164 | |
48 | #define R_SH_RELATIVE 165 | |
49 | #define R_SH_GOTOFF 166 | |
50 | #define R_SH_GOTPC 167 | |
3bc24a1a PM |
51 | |
52 | /* FDPIC relocs */ | |
53 | #define R_SH_GOT20 70 | |
54 | #define R_SH_GOTOFF20 71 | |
55 | #define R_SH_GOTFUNCDESC 72 | |
56 | #define R_SH_GOTFUNCDESC20 73 | |
57 | #define R_SH_GOTOFFFUNCDESC 74 | |
58 | #define R_SH_GOTOFFFUNCDESC20 75 | |
59 | #define R_SH_FUNCDESC 76 | |
60 | #define R_SH_FUNCDESC_VALUE 77 | |
61 | ||
62 | #if 0 /* XXX - later .. */ | |
63 | #define R_SH_GOT20 198 | |
64 | #define R_SH_GOTOFF20 199 | |
65 | #define R_SH_GOTFUNCDESC 200 | |
66 | #define R_SH_GOTFUNCDESC20 201 | |
67 | #define R_SH_GOTOFFFUNCDESC 202 | |
68 | #define R_SH_GOTOFFFUNCDESC20 203 | |
69 | #define R_SH_FUNCDESC 204 | |
70 | #define R_SH_FUNCDESC_VALUE 205 | |
71 | #endif | |
72 | ||
b542ad11 PM |
73 | /* SHmedia relocs */ |
74 | #define R_SH_IMM_LOW16 246 | |
75 | #define R_SH_IMM_LOW16_PCREL 247 | |
76 | #define R_SH_IMM_MEDLOW16 248 | |
77 | #define R_SH_IMM_MEDLOW16_PCREL 249 | |
1da177e4 LT |
78 | /* Keep this the last entry. */ |
79 | #define R_SH_NUM 256 | |
80 | ||
81 | /* | |
82 | * ELF register definitions.. | |
83 | */ | |
84 | ||
1da177e4 LT |
85 | typedef unsigned long elf_greg_t; |
86 | ||
87 | #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t)) | |
88 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; | |
89 | ||
90 | typedef struct user_fpu_struct elf_fpregset_t; | |
91 | ||
1da177e4 LT |
92 | /* |
93 | * These are used to set parameters in the core dumps. | |
94 | */ | |
95 | #define ELF_CLASS ELFCLASS32 | |
96 | #ifdef __LITTLE_ENDIAN__ | |
97 | #define ELF_DATA ELFDATA2LSB | |
98 | #else | |
99 | #define ELF_DATA ELFDATA2MSB | |
100 | #endif | |
101 | #define ELF_ARCH EM_SH | |
102 | ||
a9f1365e PM |
103 | #ifdef __KERNEL__ |
104 | /* | |
105 | * This is used to ensure we don't load something for the wrong architecture. | |
106 | */ | |
3bc24a1a PM |
107 | #define elf_check_arch(x) ((x)->e_machine == EM_SH) |
108 | #define elf_check_fdpic(x) ((x)->e_flags & EF_SH_FDPIC) | |
109 | #define elf_check_const_displacement(x) ((x)->e_flags & EF_SH_PIC) | |
a9f1365e | 110 | |
1da177e4 | 111 | #define USE_ELF_CORE_DUMP |
3bc24a1a | 112 | #define ELF_FDPIC_CORE_EFLAGS EF_SH_FDPIC |
21440cf0 | 113 | #define ELF_EXEC_PAGESIZE PAGE_SIZE |
1da177e4 LT |
114 | |
115 | /* This is the location that an ET_DYN program is loaded if exec'ed. Typical | |
116 | use of this is to invoke "./ld.so someprog" to test out a new version of | |
117 | the loader. We need to make sure that it is out of the way of the program | |
118 | that it will "exec", and that there is sufficient room for the brk. */ | |
119 | ||
120 | #define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) | |
121 | ||
1da177e4 LT |
122 | #define ELF_CORE_COPY_REGS(_dest,_regs) \ |
123 | memcpy((char *) &_dest, (char *) _regs, \ | |
124 | sizeof(struct pt_regs)); | |
125 | ||
126 | /* This yields a mask that user programs can use to figure out what | |
127 | instruction set this CPU supports. This could be done in user space, | |
128 | but it's not easy, and we've already done it here. */ | |
129 | ||
315bb968 | 130 | #define ELF_HWCAP (boot_cpu_data.flags) |
1da177e4 LT |
131 | |
132 | /* This yields a string that ld.so will use to load implementation | |
133 | specific libraries for optimization. This is more specific in | |
134 | intent than poking at uname or /proc/cpuinfo. | |
135 | ||
136 | For the moment, we have only optimizations for the Intel generations, | |
137 | but that could change... */ | |
138 | ||
a9f1365e | 139 | #define ELF_PLATFORM (utsname()->machine) |
1da177e4 | 140 | |
b542ad11 PM |
141 | #ifdef __SH5__ |
142 | #define ELF_PLAT_INIT(_r, load_addr) \ | |
143 | do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \ | |
144 | _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \ | |
145 | _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \ | |
146 | _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; _r->regs[15]=0; \ | |
147 | _r->regs[16]=0; _r->regs[17]=0; _r->regs[18]=0; _r->regs[19]=0; \ | |
148 | _r->regs[20]=0; _r->regs[21]=0; _r->regs[22]=0; _r->regs[23]=0; \ | |
149 | _r->regs[24]=0; _r->regs[25]=0; _r->regs[26]=0; _r->regs[27]=0; \ | |
150 | _r->regs[28]=0; _r->regs[29]=0; _r->regs[30]=0; _r->regs[31]=0; \ | |
151 | _r->regs[32]=0; _r->regs[33]=0; _r->regs[34]=0; _r->regs[35]=0; \ | |
152 | _r->regs[36]=0; _r->regs[37]=0; _r->regs[38]=0; _r->regs[39]=0; \ | |
153 | _r->regs[40]=0; _r->regs[41]=0; _r->regs[42]=0; _r->regs[43]=0; \ | |
154 | _r->regs[44]=0; _r->regs[45]=0; _r->regs[46]=0; _r->regs[47]=0; \ | |
155 | _r->regs[48]=0; _r->regs[49]=0; _r->regs[50]=0; _r->regs[51]=0; \ | |
156 | _r->regs[52]=0; _r->regs[53]=0; _r->regs[54]=0; _r->regs[55]=0; \ | |
157 | _r->regs[56]=0; _r->regs[57]=0; _r->regs[58]=0; _r->regs[59]=0; \ | |
158 | _r->regs[60]=0; _r->regs[61]=0; _r->regs[62]=0; \ | |
159 | _r->tregs[0]=0; _r->tregs[1]=0; _r->tregs[2]=0; _r->tregs[3]=0; \ | |
160 | _r->tregs[4]=0; _r->tregs[5]=0; _r->tregs[6]=0; _r->tregs[7]=0; \ | |
161 | _r->sr = SR_FD | SR_MMU; } while (0) | |
162 | #else | |
1da177e4 LT |
163 | #define ELF_PLAT_INIT(_r, load_addr) \ |
164 | do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \ | |
165 | _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \ | |
166 | _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \ | |
167 | _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; \ | |
168 | _r->sr = SR_FD; } while (0) | |
3bc24a1a PM |
169 | |
170 | #define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr, _interp_map_addr, \ | |
171 | _dynamic_addr) \ | |
172 | do { \ | |
173 | _r->regs[0] = 0; \ | |
174 | _r->regs[1] = 0; \ | |
175 | _r->regs[2] = 0; \ | |
176 | _r->regs[3] = 0; \ | |
177 | _r->regs[4] = 0; \ | |
178 | _r->regs[5] = 0; \ | |
179 | _r->regs[6] = 0; \ | |
180 | _r->regs[7] = 0; \ | |
181 | _r->regs[8] = _exec_map_addr; \ | |
182 | _r->regs[9] = _interp_map_addr; \ | |
183 | _r->regs[10] = _dynamic_addr; \ | |
184 | _r->regs[11] = 0; \ | |
185 | _r->regs[12] = 0; \ | |
186 | _r->regs[13] = 0; \ | |
187 | _r->regs[14] = 0; \ | |
188 | _r->sr = SR_FD; \ | |
189 | } while (0) | |
b542ad11 | 190 | #endif |
1da177e4 | 191 | |
1da177e4 | 192 | #define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT) |
8c65b4a6 | 193 | struct task_struct; |
1da177e4 LT |
194 | extern int dump_task_regs (struct task_struct *, elf_gregset_t *); |
195 | extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *); | |
196 | ||
197 | #define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs) | |
198 | #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs) | |
1da177e4 | 199 | |
19f9a34f PM |
200 | #ifdef CONFIG_VSYSCALL |
201 | /* vDSO has arch_setup_additional_pages */ | |
202 | #define ARCH_HAS_SETUP_ADDITIONAL_PAGES | |
203 | struct linux_binprm; | |
204 | extern int arch_setup_additional_pages(struct linux_binprm *bprm, | |
205 | int executable_stack); | |
206 | ||
207 | extern unsigned int vdso_enabled; | |
208 | extern void __kernel_vsyscall; | |
209 | ||
210 | #define VDSO_BASE ((unsigned long)current->mm->context.vdso) | |
211 | #define VDSO_SYM(x) (VDSO_BASE + (unsigned long)(x)) | |
212 | ||
cd01204b PM |
213 | #define VSYSCALL_AUX_ENT \ |
214 | if (vdso_enabled) \ | |
215 | NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE); | |
216 | #else | |
217 | #define VSYSCALL_AUX_ENT | |
218 | #endif /* CONFIG_VSYSCALL */ | |
219 | ||
98c4ecde PM |
220 | #ifdef CONFIG_SH_FPU |
221 | #define FPU_AUX_ENT NEW_AUX_ENT(AT_FPUCW, FPSCR_INIT) | |
222 | #else | |
223 | #define FPU_AUX_ENT | |
224 | #endif | |
225 | ||
cd01204b PM |
226 | extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape; |
227 | ||
4f9a58d7 | 228 | /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */ |
19f9a34f PM |
229 | #define ARCH_DLINFO \ |
230 | do { \ | |
98c4ecde PM |
231 | /* Optional FPU initialization */ \ |
232 | FPU_AUX_ENT; \ | |
233 | \ | |
cd01204b | 234 | /* Optional vsyscall entry */ \ |
98c4ecde | 235 | VSYSCALL_AUX_ENT; \ |
cd01204b PM |
236 | \ |
237 | /* Cache desc */ \ | |
238 | NEW_AUX_ENT(AT_L1I_CACHESHAPE, l1i_cache_shape); \ | |
239 | NEW_AUX_ENT(AT_L1D_CACHESHAPE, l1d_cache_shape); \ | |
240 | NEW_AUX_ENT(AT_L2_CACHESHAPE, l2_cache_shape); \ | |
19f9a34f | 241 | } while (0) |
19f9a34f | 242 | |
a9f1365e | 243 | #endif /* __KERNEL__ */ |
1da177e4 | 244 | #endif /* __ASM_SH_ELF_H */ |