Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __ASM_SH_ELF_H |
| 2 | #define __ASM_SH_ELF_H |
| 3 | |
Paul Mundt | 315bb96 | 2006-09-27 18:22:53 +0900 | [diff] [blame] | 4 | #include <asm/auxvec.h> |
| 5 | #include <asm/ptrace.h> |
| 6 | #include <asm/user.h> |
| 7 | |
Paul Mundt | b542ad1 | 2007-11-20 15:14:31 +0900 | [diff] [blame] | 8 | /* SH (particularly SHcompact) relocation types */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |
Paul Mundt | b542ad1 | 2007-11-20 15:14:31 +0900 | [diff] [blame] | 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 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | /* Keep this the last entry. */ |
| 52 | #define R_SH_NUM 256 |
| 53 | |
| 54 | /* |
| 55 | * ELF register definitions.. |
| 56 | */ |
| 57 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 58 | typedef unsigned long elf_greg_t; |
| 59 | |
| 60 | #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t)) |
| 61 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; |
| 62 | |
| 63 | typedef struct user_fpu_struct elf_fpregset_t; |
| 64 | |
| 65 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Paul Mundt | a9f1365 | 2007-12-10 16:06:32 +0900 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 82 | #define USE_ELF_CORE_DUMP |
Paul Mundt | 21440cf | 2006-11-20 14:30:26 +0900 | [diff] [blame] | 83 | #define ELF_EXEC_PAGESIZE PAGE_SIZE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 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 Mundt | 315bb96 | 2006-09-27 18:22:53 +0900 | [diff] [blame] | 101 | #define ELF_HWCAP (boot_cpu_data.flags) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 102 | |
| 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 Mundt | a9f1365 | 2007-12-10 16:06:32 +0900 | [diff] [blame] | 110 | #define ELF_PLATFORM (utsname()->machine) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 111 | |
Paul Mundt | b542ad1 | 2007-11-20 15:14:31 +0900 | [diff] [blame] | 112 | #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 Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | #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 Mundt | b542ad1 | 2007-11-20 15:14:31 +0900 | [diff] [blame] | 140 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | |
| 142 | #ifdef __KERNEL__ |
| 143 | #define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT) |
Tim Schmielau | 8c65b4a | 2005-11-07 00:59:43 -0800 | [diff] [blame] | 144 | struct task_struct; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 145 | extern int dump_task_regs (struct task_struct *, elf_gregset_t *); |
| 146 | extern 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 Mundt | 19f9a34 | 2006-09-27 18:33:49 +0900 | [diff] [blame] | 152 | #ifdef CONFIG_VSYSCALL |
| 153 | /* vDSO has arch_setup_additional_pages */ |
| 154 | #define ARCH_HAS_SETUP_ADDITIONAL_PAGES |
| 155 | struct linux_binprm; |
| 156 | extern int arch_setup_additional_pages(struct linux_binprm *bprm, |
| 157 | int executable_stack); |
| 158 | |
| 159 | extern unsigned int vdso_enabled; |
| 160 | extern 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 Mundt | cd01204 | 2007-12-10 15:50:28 +0900 | [diff] [blame] | 165 | #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 Mundt | 98c4ecd | 2007-12-10 16:21:57 +0900 | [diff] [blame^] | 172 | #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 Mundt | cd01204 | 2007-12-10 15:50:28 +0900 | [diff] [blame] | 178 | extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape; |
| 179 | |
Olaf Hering | 4f9a58d | 2007-10-16 23:30:12 -0700 | [diff] [blame] | 180 | /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */ |
Paul Mundt | 19f9a34 | 2006-09-27 18:33:49 +0900 | [diff] [blame] | 181 | #define ARCH_DLINFO \ |
| 182 | do { \ |
Paul Mundt | 98c4ecd | 2007-12-10 16:21:57 +0900 | [diff] [blame^] | 183 | /* Optional FPU initialization */ \ |
| 184 | FPU_AUX_ENT; \ |
| 185 | \ |
Paul Mundt | cd01204 | 2007-12-10 15:50:28 +0900 | [diff] [blame] | 186 | /* Optional vsyscall entry */ \ |
Paul Mundt | 98c4ecd | 2007-12-10 16:21:57 +0900 | [diff] [blame^] | 187 | VSYSCALL_AUX_ENT; \ |
Paul Mundt | cd01204 | 2007-12-10 15:50:28 +0900 | [diff] [blame] | 188 | \ |
| 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 Mundt | 19f9a34 | 2006-09-27 18:33:49 +0900 | [diff] [blame] | 193 | } while (0) |
Paul Mundt | 19f9a34 | 2006-09-27 18:33:49 +0900 | [diff] [blame] | 194 | |
Paul Mundt | a9f1365 | 2007-12-10 16:06:32 +0900 | [diff] [blame] | 195 | #endif /* __KERNEL__ */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | #endif /* __ASM_SH_ELF_H */ |