Linux kernel mirror (for testing)
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linux
1#ifndef __ASM_SH_ELF_H
2#define __ASM_SH_ELF_H
3
4#include <asm/auxvec.h>
5#include <asm/ptrace.h>
6#include <asm/user.h>
7
8/* SH (particularly SHcompact) relocation types */
9#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
46/* 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
51/* Keep this the last entry. */
52#define R_SH_NUM 256
53
54/*
55 * ELF register definitions..
56 */
57
58typedef 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/*
66 * 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
76#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
82#define USE_ELF_CORE_DUMP
83#define ELF_EXEC_PAGESIZE PAGE_SIZE
84
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#define ELF_CORE_COPY_REGS(_dest,_regs) \
93 memcpy((char *) &_dest, (char *) _regs, \
94 sizeof(struct pt_regs));
95
96/* This yields a mask that user programs can use to figure out what
97 instruction set this CPU supports. This could be done in user space,
98 but it's not easy, and we've already done it here. */
99
100#define ELF_HWCAP (boot_cpu_data.flags)
101
102/* This yields a string that ld.so will use to load implementation
103 specific libraries for optimization. This is more specific in
104 intent than poking at uname or /proc/cpuinfo.
105
106 For the moment, we have only optimizations for the Intel generations,
107 but that could change... */
108
109#define ELF_PLATFORM (utsname()->machine)
110
111#ifdef __SH5__
112#define ELF_PLAT_INIT(_r, load_addr) \
113 do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
114 _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
115 _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
116 _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; _r->regs[15]=0; \
117 _r->regs[16]=0; _r->regs[17]=0; _r->regs[18]=0; _r->regs[19]=0; \
118 _r->regs[20]=0; _r->regs[21]=0; _r->regs[22]=0; _r->regs[23]=0; \
119 _r->regs[24]=0; _r->regs[25]=0; _r->regs[26]=0; _r->regs[27]=0; \
120 _r->regs[28]=0; _r->regs[29]=0; _r->regs[30]=0; _r->regs[31]=0; \
121 _r->regs[32]=0; _r->regs[33]=0; _r->regs[34]=0; _r->regs[35]=0; \
122 _r->regs[36]=0; _r->regs[37]=0; _r->regs[38]=0; _r->regs[39]=0; \
123 _r->regs[40]=0; _r->regs[41]=0; _r->regs[42]=0; _r->regs[43]=0; \
124 _r->regs[44]=0; _r->regs[45]=0; _r->regs[46]=0; _r->regs[47]=0; \
125 _r->regs[48]=0; _r->regs[49]=0; _r->regs[50]=0; _r->regs[51]=0; \
126 _r->regs[52]=0; _r->regs[53]=0; _r->regs[54]=0; _r->regs[55]=0; \
127 _r->regs[56]=0; _r->regs[57]=0; _r->regs[58]=0; _r->regs[59]=0; \
128 _r->regs[60]=0; _r->regs[61]=0; _r->regs[62]=0; \
129 _r->tregs[0]=0; _r->tregs[1]=0; _r->tregs[2]=0; _r->tregs[3]=0; \
130 _r->tregs[4]=0; _r->tregs[5]=0; _r->tregs[6]=0; _r->tregs[7]=0; \
131 _r->sr = SR_FD | SR_MMU; } while (0)
132#else
133#define ELF_PLAT_INIT(_r, load_addr) \
134 do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
135 _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
136 _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
137 _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; \
138 _r->sr = SR_FD; } while (0)
139#endif
140
141#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT)
142struct task_struct;
143extern int dump_task_regs (struct task_struct *, elf_gregset_t *);
144extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *);
145
146#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
147#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
148
149#ifdef CONFIG_VSYSCALL
150/* vDSO has arch_setup_additional_pages */
151#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
152struct linux_binprm;
153extern int arch_setup_additional_pages(struct linux_binprm *bprm,
154 int executable_stack);
155
156extern unsigned int vdso_enabled;
157extern void __kernel_vsyscall;
158
159#define VDSO_BASE ((unsigned long)current->mm->context.vdso)
160#define VDSO_SYM(x) (VDSO_BASE + (unsigned long)(x))
161
162#define VSYSCALL_AUX_ENT \
163 if (vdso_enabled) \
164 NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE);
165#else
166#define VSYSCALL_AUX_ENT
167#endif /* CONFIG_VSYSCALL */
168
169#ifdef CONFIG_SH_FPU
170#define FPU_AUX_ENT NEW_AUX_ENT(AT_FPUCW, FPSCR_INIT)
171#else
172#define FPU_AUX_ENT
173#endif
174
175extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;
176
177/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
178#define ARCH_DLINFO \
179do { \
180 /* Optional FPU initialization */ \
181 FPU_AUX_ENT; \
182 \
183 /* Optional vsyscall entry */ \
184 VSYSCALL_AUX_ENT; \
185 \
186 /* Cache desc */ \
187 NEW_AUX_ENT(AT_L1I_CACHESHAPE, l1i_cache_shape); \
188 NEW_AUX_ENT(AT_L1D_CACHESHAPE, l1d_cache_shape); \
189 NEW_AUX_ENT(AT_L2_CACHESHAPE, l2_cache_shape); \
190} while (0)
191
192#endif /* __KERNEL__ */
193#endif /* __ASM_SH_ELF_H */