Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __ASM_ALPHA_ELF_H |
| 2 | #define __ASM_ALPHA_ELF_H |
| 3 | |
H. J. Lu | 36d57ac | 2005-09-06 15:16:49 -0700 | [diff] [blame] | 4 | #include <asm/auxvec.h> |
| 5 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Olaf Hering | 4f9a58d | 2007-10-16 23:30:12 -0700 | [diff] [blame] | 156 | /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | #endif /* __ASM_ALPHA_ELF_H */ |