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-rw-r--r--arch/sh/include/asm/elf.h244
1 files changed, 244 insertions, 0 deletions
diff --git a/arch/sh/include/asm/elf.h b/arch/sh/include/asm/elf.h
new file mode 100644
index 000000000000..f01449a8d378
--- /dev/null
+++ b/arch/sh/include/asm/elf.h
@@ -0,0 +1,244 @@
1#ifndef __ASM_SH_ELF_H
2#define __ASM_SH_ELF_H
3
4#include <linux/utsname.h>
5#include <asm/auxvec.h>
6#include <asm/ptrace.h>
7#include <asm/user.h>
8
9/* ELF header e_flags defines */
10#define EF_SH_PIC 0x100 /* -fpic */
11#define EF_SH_FDPIC 0x8000 /* -mfdpic */
12
13/* SH (particularly SHcompact) relocation types */
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
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
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
78/* Keep this the last entry. */
79#define R_SH_NUM 256
80
81/*
82 * ELF register definitions..
83 */
84
85typedef unsigned long elf_greg_t;
86
87#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
88typedef elf_greg_t elf_gregset_t[ELF_NGREG];
89
90typedef struct user_fpu_struct elf_fpregset_t;
91
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
103#ifdef __KERNEL__
104/*
105 * This is used to ensure we don't load something for the wrong architecture.
106 */
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)
110
111#define USE_ELF_CORE_DUMP
112#define ELF_FDPIC_CORE_EFLAGS EF_SH_FDPIC
113#define ELF_EXEC_PAGESIZE PAGE_SIZE
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
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
130#define ELF_HWCAP (boot_cpu_data.flags)
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
139#define ELF_PLATFORM (utsname()->machine)
140
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
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)
169
170#define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr, _interp_map_addr, \
171 _dynamic_addr) \
172do { \
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)
190#endif
191
192#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT)
193struct task_struct;
194extern int dump_task_regs (struct task_struct *, elf_gregset_t *);
195extern 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)
199
200#ifdef CONFIG_VSYSCALL
201/* vDSO has arch_setup_additional_pages */
202#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
203struct linux_binprm;
204extern int arch_setup_additional_pages(struct linux_binprm *bprm,
205 int executable_stack);
206
207extern unsigned int vdso_enabled;
208extern 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
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
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
226extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;
227
228/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
229#define ARCH_DLINFO \
230do { \
231 /* Optional FPU initialization */ \
232 FPU_AUX_ENT; \
233 \
234 /* Optional vsyscall entry */ \
235 VSYSCALL_AUX_ENT; \
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); \
241} while (0)
242
243#endif /* __KERNEL__ */
244#endif /* __ASM_SH_ELF_H */
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