Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __PPC_ELF_H |
| 2 | #define __PPC_ELF_H |
| 3 | |
| 4 | /* |
| 5 | * ELF register definitions.. |
| 6 | */ |
| 7 | #include <asm/types.h> |
| 8 | #include <asm/ptrace.h> |
| 9 | #include <asm/cputable.h> |
H. J. Lu | 36d57ac | 2005-09-06 15:16:49 -0700 | [diff] [blame] | 10 | #include <asm/auxvec.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | |
| 12 | /* PowerPC relocations defined by the ABIs */ |
| 13 | #define R_PPC_NONE 0 |
| 14 | #define R_PPC_ADDR32 1 /* 32bit absolute address */ |
| 15 | #define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */ |
| 16 | #define R_PPC_ADDR16 3 /* 16bit absolute address */ |
| 17 | #define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */ |
| 18 | #define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */ |
| 19 | #define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */ |
| 20 | #define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */ |
| 21 | #define R_PPC_ADDR14_BRTAKEN 8 |
| 22 | #define R_PPC_ADDR14_BRNTAKEN 9 |
| 23 | #define R_PPC_REL24 10 /* PC relative 26 bit */ |
| 24 | #define R_PPC_REL14 11 /* PC relative 16 bit */ |
| 25 | #define R_PPC_REL14_BRTAKEN 12 |
| 26 | #define R_PPC_REL14_BRNTAKEN 13 |
| 27 | #define R_PPC_GOT16 14 |
| 28 | #define R_PPC_GOT16_LO 15 |
| 29 | #define R_PPC_GOT16_HI 16 |
| 30 | #define R_PPC_GOT16_HA 17 |
| 31 | #define R_PPC_PLTREL24 18 |
| 32 | #define R_PPC_COPY 19 |
| 33 | #define R_PPC_GLOB_DAT 20 |
| 34 | #define R_PPC_JMP_SLOT 21 |
| 35 | #define R_PPC_RELATIVE 22 |
| 36 | #define R_PPC_LOCAL24PC 23 |
| 37 | #define R_PPC_UADDR32 24 |
| 38 | #define R_PPC_UADDR16 25 |
| 39 | #define R_PPC_REL32 26 |
| 40 | #define R_PPC_PLT32 27 |
| 41 | #define R_PPC_PLTREL32 28 |
| 42 | #define R_PPC_PLT16_LO 29 |
| 43 | #define R_PPC_PLT16_HI 30 |
| 44 | #define R_PPC_PLT16_HA 31 |
| 45 | #define R_PPC_SDAREL16 32 |
| 46 | #define R_PPC_SECTOFF 33 |
| 47 | #define R_PPC_SECTOFF_LO 34 |
| 48 | #define R_PPC_SECTOFF_HI 35 |
| 49 | #define R_PPC_SECTOFF_HA 36 |
| 50 | /* Keep this the last entry. */ |
| 51 | #define R_PPC_NUM 37 |
| 52 | |
| 53 | #define ELF_NGREG 48 /* includes nip, msr, lr, etc. */ |
| 54 | #define ELF_NFPREG 33 /* includes fpscr */ |
| 55 | #define ELF_NVRREG 33 /* includes vscr */ |
| 56 | #define ELF_NEVRREG 34 /* includes acc (as 2) */ |
| 57 | |
| 58 | /* |
| 59 | * These are used to set parameters in the core dumps. |
| 60 | */ |
| 61 | #define ELF_ARCH EM_PPC |
| 62 | #define ELF_CLASS ELFCLASS32 |
| 63 | #define ELF_DATA ELFDATA2MSB |
| 64 | |
| 65 | /* General registers */ |
| 66 | typedef unsigned long elf_greg_t; |
| 67 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; |
| 68 | |
| 69 | /* Floating point registers */ |
| 70 | typedef double elf_fpreg_t; |
| 71 | typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; |
| 72 | |
| 73 | /* Altivec registers */ |
| 74 | typedef __vector128 elf_vrreg_t; |
| 75 | typedef elf_vrreg_t elf_vrregset_t[ELF_NVRREG]; |
| 76 | |
| 77 | #ifdef __KERNEL__ |
| 78 | |
| 79 | struct task_struct; |
| 80 | |
| 81 | /* |
| 82 | * This is used to ensure we don't load something for the wrong architecture. |
| 83 | */ |
| 84 | |
| 85 | #define elf_check_arch(x) ((x)->e_machine == EM_PPC) |
| 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 (0x08000000) |
| 93 | |
| 94 | #define USE_ELF_CORE_DUMP |
| 95 | #define ELF_EXEC_PAGESIZE 4096 |
| 96 | |
| 97 | #define ELF_CORE_COPY_REGS(gregs, regs) \ |
| 98 | memcpy((gregs), (regs), sizeof(struct pt_regs)); \ |
| 99 | memset((char *)(gregs) + sizeof(struct pt_regs), 0, \ |
| 100 | sizeof(elf_gregset_t) - sizeof(struct pt_regs)); |
| 101 | |
| 102 | #define ELF_CORE_COPY_TASK_REGS(t, elfregs) \ |
| 103 | ((t)->thread.regs? \ |
| 104 | ({ ELF_CORE_COPY_REGS((elfregs), (t)->thread.regs); 1; }): 0) |
| 105 | |
| 106 | extern int dump_task_fpu(struct task_struct *t, elf_fpregset_t *fpu); |
| 107 | #define ELF_CORE_COPY_FPREGS(t, fpu) dump_task_fpu((t), (fpu)) |
| 108 | |
| 109 | /* This yields a mask that user programs can use to figure out what |
| 110 | instruction set this cpu supports. This could be done in userspace, |
| 111 | but it's not easy, and we've already done it here. */ |
| 112 | |
| 113 | #define ELF_HWCAP (cur_cpu_spec[0]->cpu_user_features) |
| 114 | |
| 115 | /* This yields a string that ld.so will use to load implementation |
| 116 | specific libraries for optimization. This is more specific in |
| 117 | intent than poking at uname or /proc/cpuinfo. |
| 118 | |
| 119 | For the moment, we have only optimizations for the Intel generations, |
| 120 | but that could change... */ |
| 121 | |
| 122 | #define ELF_PLATFORM (NULL) |
| 123 | |
| 124 | #define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX) |
| 125 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 126 | extern int dcache_bsize; |
| 127 | extern int icache_bsize; |
| 128 | extern int ucache_bsize; |
| 129 | |
| 130 | /* |
| 131 | * The requirements here are: |
| 132 | * - keep the final alignment of sp (sp & 0xf) |
| 133 | * - make sure the 32-bit value at the first 16 byte aligned position of |
| 134 | * AUXV is greater than 16 for glibc compatibility. |
| 135 | * AT_IGNOREPPC is used for that. |
| 136 | * - for compatibility with glibc ARCH_DLINFO must always be defined on PPC, |
| 137 | * even if DLINFO_ARCH_ITEMS goes to zero or is undefined. |
| 138 | */ |
| 139 | #define ARCH_DLINFO \ |
| 140 | do { \ |
| 141 | /* Handle glibc compatibility. */ \ |
| 142 | NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC); \ |
| 143 | NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC); \ |
| 144 | /* Cache size items */ \ |
| 145 | NEW_AUX_ENT(AT_DCACHEBSIZE, dcache_bsize); \ |
| 146 | NEW_AUX_ENT(AT_ICACHEBSIZE, icache_bsize); \ |
| 147 | NEW_AUX_ENT(AT_UCACHEBSIZE, ucache_bsize); \ |
| 148 | } while (0) |
| 149 | |
| 150 | #endif /* __KERNEL__ */ |
| 151 | #endif |