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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __ASM_SH_ELF_H
2#define __ASM_SH_ELF_H
3
Paul Mundt315bb962006-09-27 18:22:53 +09004#include <asm/auxvec.h>
5#include <asm/ptrace.h>
6#include <asm/user.h>
7
Paul Mundtb542ad12007-11-20 15:14:31 +09008/* SH (particularly SHcompact) relocation types */
Linus Torvalds1da177e2005-04-16 15:20:36 -07009#define R_SH_NONE 0
10#define R_SH_DIR32 1
11#define R_SH_REL32 2
12#define R_SH_DIR8WPN 3
13#define R_SH_IND12W 4
14#define R_SH_DIR8WPL 5
15#define R_SH_DIR8WPZ 6
16#define R_SH_DIR8BP 7
17#define R_SH_DIR8W 8
18#define R_SH_DIR8L 9
19#define R_SH_SWITCH16 25
20#define R_SH_SWITCH32 26
21#define R_SH_USES 27
22#define R_SH_COUNT 28
23#define R_SH_ALIGN 29
24#define R_SH_CODE 30
25#define R_SH_DATA 31
26#define R_SH_LABEL 32
27#define R_SH_SWITCH8 33
28#define R_SH_GNU_VTINHERIT 34
29#define R_SH_GNU_VTENTRY 35
30#define R_SH_TLS_GD_32 144
31#define R_SH_TLS_LD_32 145
32#define R_SH_TLS_LDO_32 146
33#define R_SH_TLS_IE_32 147
34#define R_SH_TLS_LE_32 148
35#define R_SH_TLS_DTPMOD32 149
36#define R_SH_TLS_DTPOFF32 150
37#define R_SH_TLS_TPOFF32 151
38#define R_SH_GOT32 160
39#define R_SH_PLT32 161
40#define R_SH_COPY 162
41#define R_SH_GLOB_DAT 163
42#define R_SH_JMP_SLOT 164
43#define R_SH_RELATIVE 165
44#define R_SH_GOTOFF 166
45#define R_SH_GOTPC 167
Paul Mundtb542ad12007-11-20 15:14:31 +090046/* SHmedia relocs */
47#define R_SH_IMM_LOW16 246
48#define R_SH_IMM_LOW16_PCREL 247
49#define R_SH_IMM_MEDLOW16 248
50#define R_SH_IMM_MEDLOW16_PCREL 249
Linus Torvalds1da177e2005-04-16 15:20:36 -070051/* Keep this the last entry. */
52#define R_SH_NUM 256
53
54/*
55 * ELF register definitions..
56 */
57
Linus Torvalds1da177e2005-04-16 15:20:36 -070058typedef unsigned long elf_greg_t;
59
60#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
61typedef elf_greg_t elf_gregset_t[ELF_NGREG];
62
63typedef struct user_fpu_struct elf_fpregset_t;
64
65/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070066 * These are used to set parameters in the core dumps.
67 */
68#define ELF_CLASS ELFCLASS32
69#ifdef __LITTLE_ENDIAN__
70#define ELF_DATA ELFDATA2LSB
71#else
72#define ELF_DATA ELFDATA2MSB
73#endif
74#define ELF_ARCH EM_SH
75
Paul Mundta9f13652007-12-10 16:06:32 +090076#ifdef __KERNEL__
77/*
78 * This is used to ensure we don't load something for the wrong architecture.
79 */
80#define elf_check_arch(x) ( (x)->e_machine == EM_SH )
81
Linus Torvalds1da177e2005-04-16 15:20:36 -070082#define USE_ELF_CORE_DUMP
Paul Mundt21440cf2006-11-20 14:30:26 +090083#define ELF_EXEC_PAGESIZE PAGE_SIZE
Linus Torvalds1da177e2005-04-16 15:20:36 -070084
85/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
86 use of this is to invoke "./ld.so someprog" to test out a new version of
87 the loader. We need to make sure that it is out of the way of the program
88 that it will "exec", and that there is sufficient room for the brk. */
89
90#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
91
92
93#define ELF_CORE_COPY_REGS(_dest,_regs) \
94 memcpy((char *) &_dest, (char *) _regs, \
95 sizeof(struct pt_regs));
96
97/* This yields a mask that user programs can use to figure out what
98 instruction set this CPU supports. This could be done in user space,
99 but it's not easy, and we've already done it here. */
100
Paul Mundt315bb962006-09-27 18:22:53 +0900101#define ELF_HWCAP (boot_cpu_data.flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102
103/* This yields a string that ld.so will use to load implementation
104 specific libraries for optimization. This is more specific in
105 intent than poking at uname or /proc/cpuinfo.
106
107 For the moment, we have only optimizations for the Intel generations,
108 but that could change... */
109
Paul Mundta9f13652007-12-10 16:06:32 +0900110#define ELF_PLATFORM (utsname()->machine)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111
Paul Mundtb542ad12007-11-20 15:14:31 +0900112#ifdef __SH5__
113#define ELF_PLAT_INIT(_r, load_addr) \
114 do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
115 _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
116 _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
117 _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; _r->regs[15]=0; \
118 _r->regs[16]=0; _r->regs[17]=0; _r->regs[18]=0; _r->regs[19]=0; \
119 _r->regs[20]=0; _r->regs[21]=0; _r->regs[22]=0; _r->regs[23]=0; \
120 _r->regs[24]=0; _r->regs[25]=0; _r->regs[26]=0; _r->regs[27]=0; \
121 _r->regs[28]=0; _r->regs[29]=0; _r->regs[30]=0; _r->regs[31]=0; \
122 _r->regs[32]=0; _r->regs[33]=0; _r->regs[34]=0; _r->regs[35]=0; \
123 _r->regs[36]=0; _r->regs[37]=0; _r->regs[38]=0; _r->regs[39]=0; \
124 _r->regs[40]=0; _r->regs[41]=0; _r->regs[42]=0; _r->regs[43]=0; \
125 _r->regs[44]=0; _r->regs[45]=0; _r->regs[46]=0; _r->regs[47]=0; \
126 _r->regs[48]=0; _r->regs[49]=0; _r->regs[50]=0; _r->regs[51]=0; \
127 _r->regs[52]=0; _r->regs[53]=0; _r->regs[54]=0; _r->regs[55]=0; \
128 _r->regs[56]=0; _r->regs[57]=0; _r->regs[58]=0; _r->regs[59]=0; \
129 _r->regs[60]=0; _r->regs[61]=0; _r->regs[62]=0; \
130 _r->tregs[0]=0; _r->tregs[1]=0; _r->tregs[2]=0; _r->tregs[3]=0; \
131 _r->tregs[4]=0; _r->tregs[5]=0; _r->tregs[6]=0; _r->tregs[7]=0; \
132 _r->sr = SR_FD | SR_MMU; } while (0)
133#else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134#define ELF_PLAT_INIT(_r, load_addr) \
135 do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
136 _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
137 _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
138 _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; \
139 _r->sr = SR_FD; } while (0)
Paul Mundtb542ad12007-11-20 15:14:31 +0900140#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141
142#ifdef __KERNEL__
143#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT)
Tim Schmielau8c65b4a2005-11-07 00:59:43 -0800144struct task_struct;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145extern int dump_task_regs (struct task_struct *, elf_gregset_t *);
146extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *);
147
148#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
149#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
150#endif
151
Paul Mundt19f9a342006-09-27 18:33:49 +0900152#ifdef CONFIG_VSYSCALL
153/* vDSO has arch_setup_additional_pages */
154#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
155struct linux_binprm;
156extern int arch_setup_additional_pages(struct linux_binprm *bprm,
157 int executable_stack);
158
159extern unsigned int vdso_enabled;
160extern void __kernel_vsyscall;
161
162#define VDSO_BASE ((unsigned long)current->mm->context.vdso)
163#define VDSO_SYM(x) (VDSO_BASE + (unsigned long)(x))
164
Paul Mundtcd012042007-12-10 15:50:28 +0900165#define VSYSCALL_AUX_ENT \
166 if (vdso_enabled) \
167 NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE);
168#else
169#define VSYSCALL_AUX_ENT
170#endif /* CONFIG_VSYSCALL */
171
Paul Mundt98c4ecd2007-12-10 16:21:57 +0900172#ifdef CONFIG_SH_FPU
173#define FPU_AUX_ENT NEW_AUX_ENT(AT_FPUCW, FPSCR_INIT)
174#else
175#define FPU_AUX_ENT
176#endif
177
Paul Mundtcd012042007-12-10 15:50:28 +0900178extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;
179
Olaf Hering4f9a58d2007-10-16 23:30:12 -0700180/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
Paul Mundt19f9a342006-09-27 18:33:49 +0900181#define ARCH_DLINFO \
182do { \
Paul Mundt98c4ecd2007-12-10 16:21:57 +0900183 /* Optional FPU initialization */ \
184 FPU_AUX_ENT; \
185 \
Paul Mundtcd012042007-12-10 15:50:28 +0900186 /* Optional vsyscall entry */ \
Paul Mundt98c4ecd2007-12-10 16:21:57 +0900187 VSYSCALL_AUX_ENT; \
Paul Mundtcd012042007-12-10 15:50:28 +0900188 \
189 /* Cache desc */ \
190 NEW_AUX_ENT(AT_L1I_CACHESHAPE, l1i_cache_shape); \
191 NEW_AUX_ENT(AT_L1D_CACHESHAPE, l1d_cache_shape); \
192 NEW_AUX_ENT(AT_L2_CACHESHAPE, l2_cache_shape); \
Paul Mundt19f9a342006-09-27 18:33:49 +0900193} while (0)
Paul Mundt19f9a342006-09-27 18:33:49 +0900194
Paul Mundta9f13652007-12-10 16:06:32 +0900195#endif /* __KERNEL__ */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196#endif /* __ASM_SH_ELF_H */