4 #include <linux/utsname.h>
5 #include <asm/auxvec.h>
6 #include <asm/ptrace.h>
9 /* ELF header e_flags defines */
10 #define EF_SH_PIC 0x100 /* -fpic */
11 #define EF_SH_FDPIC 0x8000 /* -mfdpic */
13 /* SH (particularly SHcompact) relocation types */
17 #define R_SH_DIR8WPN 3
19 #define R_SH_DIR8WPL 5
20 #define R_SH_DIR8WPZ 6
24 #define R_SH_SWITCH16 25
25 #define R_SH_SWITCH32 26
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
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
53 #define R_SH_GOT20 201
54 #define R_SH_GOTOFF20 202
55 #define R_SH_GOTFUNCDESC 203
56 #define R_SH_GOTFUNCDESC20 204
57 #define R_SH_GOTOFFFUNCDESC 205
58 #define R_SH_GOTOFFFUNCDESC20 206
59 #define R_SH_FUNCDESC 207
60 #define R_SH_FUNCDESC_VALUE 208
63 #define R_SH_IMM_LOW16 246
64 #define R_SH_IMM_LOW16_PCREL 247
65 #define R_SH_IMM_MEDLOW16 248
66 #define R_SH_IMM_MEDLOW16_PCREL 249
67 /* Keep this the last entry. */
71 * ELF register definitions..
74 typedef unsigned long elf_greg_t;
76 #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
77 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
79 typedef struct user_fpu_struct elf_fpregset_t;
82 * These are used to set parameters in the core dumps.
84 #define ELF_CLASS ELFCLASS32
85 #ifdef __LITTLE_ENDIAN__
86 #define ELF_DATA ELFDATA2LSB
88 #define ELF_DATA ELFDATA2MSB
90 #define ELF_ARCH EM_SH
94 * This is used to ensure we don't load something for the wrong architecture.
96 #define elf_check_arch(x) ((x)->e_machine == EM_SH)
97 #define elf_check_fdpic(x) ((x)->e_flags & EF_SH_FDPIC)
98 #define elf_check_const_displacement(x) ((x)->e_flags & EF_SH_PIC)
101 * Enable dump using regset.
102 * This covers all of general/DSP/FPU regs.
104 #define CORE_DUMP_USE_REGSET
106 #define ELF_FDPIC_CORE_EFLAGS EF_SH_FDPIC
107 #define ELF_EXEC_PAGESIZE PAGE_SIZE
109 /* This is the location that an ET_DYN program is loaded if exec'ed. Typical
110 use of this is to invoke "./ld.so someprog" to test out a new version of
111 the loader. We need to make sure that it is out of the way of the program
112 that it will "exec", and that there is sufficient room for the brk. */
114 #define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
116 #define ELF_CORE_COPY_REGS(_dest,_regs) \
117 memcpy((char *) &_dest, (char *) _regs, \
118 sizeof(struct pt_regs));
120 /* This yields a mask that user programs can use to figure out what
121 instruction set this CPU supports. This could be done in user space,
122 but it's not easy, and we've already done it here. */
124 #define ELF_HWCAP (boot_cpu_data.flags)
126 /* This yields a string that ld.so will use to load implementation
127 specific libraries for optimization. This is more specific in
128 intent than poking at uname or /proc/cpuinfo.
130 For the moment, we have only optimizations for the Intel generations,
131 but that could change... */
133 #define ELF_PLATFORM (utsname()->machine)
136 #define ELF_PLAT_INIT(_r, load_addr) \
137 do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
138 _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
139 _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
140 _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; _r->regs[15]=0; \
141 _r->regs[16]=0; _r->regs[17]=0; _r->regs[18]=0; _r->regs[19]=0; \
142 _r->regs[20]=0; _r->regs[21]=0; _r->regs[22]=0; _r->regs[23]=0; \
143 _r->regs[24]=0; _r->regs[25]=0; _r->regs[26]=0; _r->regs[27]=0; \
144 _r->regs[28]=0; _r->regs[29]=0; _r->regs[30]=0; _r->regs[31]=0; \
145 _r->regs[32]=0; _r->regs[33]=0; _r->regs[34]=0; _r->regs[35]=0; \
146 _r->regs[36]=0; _r->regs[37]=0; _r->regs[38]=0; _r->regs[39]=0; \
147 _r->regs[40]=0; _r->regs[41]=0; _r->regs[42]=0; _r->regs[43]=0; \
148 _r->regs[44]=0; _r->regs[45]=0; _r->regs[46]=0; _r->regs[47]=0; \
149 _r->regs[48]=0; _r->regs[49]=0; _r->regs[50]=0; _r->regs[51]=0; \
150 _r->regs[52]=0; _r->regs[53]=0; _r->regs[54]=0; _r->regs[55]=0; \
151 _r->regs[56]=0; _r->regs[57]=0; _r->regs[58]=0; _r->regs[59]=0; \
152 _r->regs[60]=0; _r->regs[61]=0; _r->regs[62]=0; \
153 _r->tregs[0]=0; _r->tregs[1]=0; _r->tregs[2]=0; _r->tregs[3]=0; \
154 _r->tregs[4]=0; _r->tregs[5]=0; _r->tregs[6]=0; _r->tregs[7]=0; \
155 _r->sr = SR_FD | SR_MMU; } while (0)
157 #define ELF_PLAT_INIT(_r, load_addr) \
158 do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
159 _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
160 _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
161 _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; \
162 _r->sr = SR_FD; } while (0)
164 #define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr, _interp_map_addr, \
175 _r->regs[8] = _exec_map_addr; \
176 _r->regs[9] = _interp_map_addr; \
177 _r->regs[10] = _dynamic_addr; \
186 #define SET_PERSONALITY(ex) \
187 set_personality(PER_LINUX_32BIT | (current->personality & (~PER_MASK)))
189 #ifdef CONFIG_VSYSCALL
190 /* vDSO has arch_setup_additional_pages */
191 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES
193 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
196 extern unsigned int vdso_enabled;
197 extern void __kernel_vsyscall;
199 #define VDSO_BASE ((unsigned long)current->mm->context.vdso)
200 #define VDSO_SYM(x) (VDSO_BASE + (unsigned long)(x))
202 #define VSYSCALL_AUX_ENT \
204 NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE); \
206 NEW_AUX_ENT(AT_IGNORE, 0)
208 #define VSYSCALL_AUX_ENT NEW_AUX_ENT(AT_IGNORE, 0)
209 #endif /* CONFIG_VSYSCALL */
212 #define FPU_AUX_ENT NEW_AUX_ENT(AT_FPUCW, FPSCR_INIT)
214 #define FPU_AUX_ENT NEW_AUX_ENT(AT_IGNORE, 0)
217 extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;
219 /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
220 #define ARCH_DLINFO \
222 /* Optional FPU initialization */ \
225 /* Optional vsyscall entry */ \
229 NEW_AUX_ENT(AT_L1I_CACHESHAPE, l1i_cache_shape); \
230 NEW_AUX_ENT(AT_L1D_CACHESHAPE, l1d_cache_shape); \
231 NEW_AUX_ENT(AT_L2_CACHESHAPE, l2_cache_shape); \
234 #endif /* __KERNEL__ */
235 #endif /* __ASM_SH_ELF_H */