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Diffstat (limited to 'arch/alpha/include/asm/elf.h')
-rw-r--r-- | arch/alpha/include/asm/elf.h | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/elf.h b/arch/alpha/include/asm/elf.h new file mode 100644 index 000000000000..fc1002ea1e0c --- /dev/null +++ b/arch/alpha/include/asm/elf.h | |||
@@ -0,0 +1,165 @@ | |||
1 | #ifndef __ASM_ALPHA_ELF_H | ||
2 | #define __ASM_ALPHA_ELF_H | ||
3 | |||
4 | #include <asm/auxvec.h> | ||
5 | |||
6 | /* Special values for the st_other field in the symbol table. */ | ||
7 | |||
8 | #define STO_ALPHA_NOPV 0x80 | ||
9 | #define STO_ALPHA_STD_GPLOAD 0x88 | ||
10 | |||
11 | /* | ||
12 | * Alpha ELF relocation types | ||
13 | */ | ||
14 | #define R_ALPHA_NONE 0 /* No reloc */ | ||
15 | #define R_ALPHA_REFLONG 1 /* Direct 32 bit */ | ||
16 | #define R_ALPHA_REFQUAD 2 /* Direct 64 bit */ | ||
17 | #define R_ALPHA_GPREL32 3 /* GP relative 32 bit */ | ||
18 | #define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */ | ||
19 | #define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */ | ||
20 | #define R_ALPHA_GPDISP 6 /* Add displacement to GP */ | ||
21 | #define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */ | ||
22 | #define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */ | ||
23 | #define R_ALPHA_SREL16 9 /* PC relative 16 bit */ | ||
24 | #define R_ALPHA_SREL32 10 /* PC relative 32 bit */ | ||
25 | #define R_ALPHA_SREL64 11 /* PC relative 64 bit */ | ||
26 | #define R_ALPHA_GPRELHIGH 17 /* GP relative 32 bit, high 16 bits */ | ||
27 | #define R_ALPHA_GPRELLOW 18 /* GP relative 32 bit, low 16 bits */ | ||
28 | #define R_ALPHA_GPREL16 19 /* GP relative 16 bit */ | ||
29 | #define R_ALPHA_COPY 24 /* Copy symbol at runtime */ | ||
30 | #define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */ | ||
31 | #define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */ | ||
32 | #define R_ALPHA_RELATIVE 27 /* Adjust by program base */ | ||
33 | #define R_ALPHA_BRSGP 28 | ||
34 | #define R_ALPHA_TLSGD 29 | ||
35 | #define R_ALPHA_TLS_LDM 30 | ||
36 | #define R_ALPHA_DTPMOD64 31 | ||
37 | #define R_ALPHA_GOTDTPREL 32 | ||
38 | #define R_ALPHA_DTPREL64 33 | ||
39 | #define R_ALPHA_DTPRELHI 34 | ||
40 | #define R_ALPHA_DTPRELLO 35 | ||
41 | #define R_ALPHA_DTPREL16 36 | ||
42 | #define R_ALPHA_GOTTPREL 37 | ||
43 | #define R_ALPHA_TPREL64 38 | ||
44 | #define R_ALPHA_TPRELHI 39 | ||
45 | #define R_ALPHA_TPRELLO 40 | ||
46 | #define R_ALPHA_TPREL16 41 | ||
47 | |||
48 | #define SHF_ALPHA_GPREL 0x10000000 | ||
49 | |||
50 | /* Legal values for e_flags field of Elf64_Ehdr. */ | ||
51 | |||
52 | #define EF_ALPHA_32BIT 1 /* All addresses are below 2GB */ | ||
53 | |||
54 | /* | ||
55 | * ELF register definitions.. | ||
56 | */ | ||
57 | |||
58 | /* | ||
59 | * The OSF/1 version of <sys/procfs.h> makes gregset_t 46 entries long. | ||
60 | * I have no idea why that is so. For now, we just leave it at 33 | ||
61 | * (32 general regs + processor status word). | ||
62 | */ | ||
63 | #define ELF_NGREG 33 | ||
64 | #define ELF_NFPREG 32 | ||
65 | |||
66 | typedef unsigned long elf_greg_t; | ||
67 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; | ||
68 | |||
69 | typedef double elf_fpreg_t; | ||
70 | typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; | ||
71 | |||
72 | /* | ||
73 | * This is used to ensure we don't load something for the wrong architecture. | ||
74 | */ | ||
75 | #define elf_check_arch(x) ((x)->e_machine == EM_ALPHA) | ||
76 | |||
77 | /* | ||
78 | * These are used to set parameters in the core dumps. | ||
79 | */ | ||
80 | #define ELF_CLASS ELFCLASS64 | ||
81 | #define ELF_DATA ELFDATA2LSB | ||
82 | #define ELF_ARCH EM_ALPHA | ||
83 | |||
84 | #define USE_ELF_CORE_DUMP | ||
85 | #define ELF_EXEC_PAGESIZE 8192 | ||
86 | |||
87 | /* This is the location that an ET_DYN program is loaded if exec'ed. Typical | ||
88 | use of this is to invoke "./ld.so someprog" to test out a new version of | ||
89 | the loader. We need to make sure that it is out of the way of the program | ||
90 | that it will "exec", and that there is sufficient room for the brk. */ | ||
91 | |||
92 | #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000) | ||
93 | |||
94 | /* $0 is set by ld.so to a pointer to a function which might be | ||
95 | registered using atexit. This provides a mean for the dynamic | ||
96 | linker to call DT_FINI functions for shared libraries that have | ||
97 | been loaded before the code runs. | ||
98 | |||
99 | So that we can use the same startup file with static executables, | ||
100 | we start programs with a value of 0 to indicate that there is no | ||
101 | such function. */ | ||
102 | |||
103 | #define ELF_PLAT_INIT(_r, load_addr) _r->r0 = 0 | ||
104 | |||
105 | /* The registers are layed out in pt_regs for PAL and syscall | ||
106 | convenience. Re-order them for the linear elf_gregset_t. */ | ||
107 | |||
108 | struct pt_regs; | ||
109 | struct thread_info; | ||
110 | struct task_struct; | ||
111 | extern void dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt, | ||
112 | struct thread_info *ti); | ||
113 | #define ELF_CORE_COPY_REGS(DEST, REGS) \ | ||
114 | dump_elf_thread(DEST, REGS, current_thread_info()); | ||
115 | |||
116 | /* Similar, but for a thread other than current. */ | ||
117 | |||
118 | extern int dump_elf_task(elf_greg_t *dest, struct task_struct *task); | ||
119 | #define ELF_CORE_COPY_TASK_REGS(TASK, DEST) \ | ||
120 | dump_elf_task(*(DEST), TASK) | ||
121 | |||
122 | /* Similar, but for the FP registers. */ | ||
123 | |||
124 | extern int dump_elf_task_fp(elf_fpreg_t *dest, struct task_struct *task); | ||
125 | #define ELF_CORE_COPY_FPREGS(TASK, DEST) \ | ||
126 | dump_elf_task_fp(*(DEST), TASK) | ||
127 | |||
128 | /* This yields a mask that user programs can use to figure out what | ||
129 | instruction set this CPU supports. This is trivial on Alpha, | ||
130 | but not so on other machines. */ | ||
131 | |||
132 | #define ELF_HWCAP (~amask(-1)) | ||
133 | |||
134 | /* This yields a string that ld.so will use to load implementation | ||
135 | specific libraries for optimization. This is more specific in | ||
136 | intent than poking at uname or /proc/cpuinfo. */ | ||
137 | |||
138 | #define ELF_PLATFORM \ | ||
139 | ({ \ | ||
140 | enum implver_enum i_ = implver(); \ | ||
141 | ( i_ == IMPLVER_EV4 ? "ev4" \ | ||
142 | : i_ == IMPLVER_EV5 \ | ||
143 | ? (amask(AMASK_BWX) ? "ev5" : "ev56") \ | ||
144 | : amask (AMASK_CIX) ? "ev6" : "ev67"); \ | ||
145 | }) | ||
146 | |||
147 | #define SET_PERSONALITY(EX, IBCS2) \ | ||
148 | set_personality(((EX).e_flags & EF_ALPHA_32BIT) \ | ||
149 | ? PER_LINUX_32BIT : (IBCS2) ? PER_SVR4 : PER_LINUX) | ||
150 | |||
151 | extern int alpha_l1i_cacheshape; | ||
152 | extern int alpha_l1d_cacheshape; | ||
153 | extern int alpha_l2_cacheshape; | ||
154 | extern int alpha_l3_cacheshape; | ||
155 | |||
156 | /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */ | ||
157 | #define ARCH_DLINFO \ | ||
158 | do { \ | ||
159 | NEW_AUX_ENT(AT_L1I_CACHESHAPE, alpha_l1i_cacheshape); \ | ||
160 | NEW_AUX_ENT(AT_L1D_CACHESHAPE, alpha_l1d_cacheshape); \ | ||
161 | NEW_AUX_ENT(AT_L2_CACHESHAPE, alpha_l2_cacheshape); \ | ||
162 | NEW_AUX_ENT(AT_L3_CACHESHAPE, alpha_l3_cacheshape); \ | ||
163 | } while (0) | ||
164 | |||
165 | #endif /* __ASM_ALPHA_ELF_H */ | ||