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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 | #ifndef _ASM_IA64_IA32_H #define _ASM_IA64_IA32_H #include <linux/config.h> #ifdef CONFIG_IA32_SUPPORT /* * 32 bit structures for IA32 support. */ /* 32bit compatibility types */ typedef unsigned int __kernel_size_t32; typedef int __kernel_ssize_t32; typedef int __kernel_ptrdiff_t32; typedef int __kernel_time_t32; typedef int __kernel_clock_t32; typedef int __kernel_pid_t32; typedef unsigned short __kernel_ipc_pid_t32; typedef unsigned short __kernel_uid_t32; typedef unsigned short __kernel_gid_t32; typedef unsigned short __kernel_dev_t32; typedef unsigned int __kernel_ino_t32; typedef unsigned short __kernel_mode_t32; typedef unsigned short __kernel_umode_t32; typedef short __kernel_nlink_t32; typedef int __kernel_daddr_t32; typedef int __kernel_off_t32; typedef unsigned int __kernel_caddr_t32; typedef long __kernel_loff_t32; typedef __kernel_fsid_t __kernel_fsid_t32; #define IA32_PAGE_SHIFT 12 /* 4KB pages */ #define IA32_PAGE_SIZE (1ULL << IA32_PAGE_SHIFT) /* fcntl.h */ struct flock32 { short l_type; short l_whence; __kernel_off_t32 l_start; __kernel_off_t32 l_len; __kernel_pid_t32 l_pid; short __unused; }; /* sigcontext.h */ /* * As documented in the iBCS2 standard.. * * The first part of "struct _fpstate" is just the * normal i387 hardware setup, the extra "status" * word is used to save the coprocessor status word * before entering the handler. */ struct _fpreg_ia32 { unsigned short significand[4]; unsigned short exponent; }; struct _fpstate_ia32 { unsigned int cw, sw, tag, ipoff, cssel, dataoff, datasel; struct _fpreg_ia32 _st[8]; unsigned int status; }; struct sigcontext_ia32 { unsigned short gs, __gsh; unsigned short fs, __fsh; unsigned short es, __esh; unsigned short ds, __dsh; unsigned int edi; unsigned int esi; unsigned int ebp; unsigned int esp; unsigned int ebx; unsigned int edx; unsigned int ecx; unsigned int eax; unsigned int trapno; unsigned int err; unsigned int eip; unsigned short cs, __csh; unsigned int eflags; unsigned int esp_at_signal; unsigned short ss, __ssh; struct _fpstate_ia32 * fpstate; unsigned int oldmask; unsigned int cr2; }; /* signal.h */ #define _IA32_NSIG 64 #define _IA32_NSIG_BPW 32 #define _IA32_NSIG_WORDS (_IA32_NSIG / _IA32_NSIG_BPW) typedef struct { unsigned int sig[_IA32_NSIG_WORDS]; } sigset32_t; struct sigaction32 { unsigned int sa_handler; /* Really a pointer, but need to deal with 32 bits */ unsigned int sa_flags; unsigned int sa_restorer; /* Another 32 bit pointer */ sigset32_t sa_mask; /* A 32 bit mask */ }; struct ucontext_ia32 { unsigned long uc_flags; struct ucontext_ia32 *uc_link; stack_t uc_stack; struct sigcontext_ia32 uc_mcontext; sigset_t uc_sigmask; /* mask last for extensibility */ }; struct stat32 { unsigned short st_dev; unsigned short __pad1; unsigned int st_ino; unsigned short st_mode; unsigned short st_nlink; unsigned short st_uid; unsigned short st_gid; unsigned short st_rdev; unsigned short __pad2; unsigned int st_size; unsigned int st_blksize; unsigned int st_blocks; unsigned int st_atime; unsigned int __unused1; unsigned int st_mtime; unsigned int __unused2; unsigned int st_ctime; unsigned int __unused3; unsigned int __unused4; unsigned int __unused5; }; struct statfs32 { int f_type; int f_bsize; int f_blocks; int f_bfree; int f_bavail; int f_files; int f_ffree; __kernel_fsid_t32 f_fsid; int f_namelen; /* SunOS ignores this field. */ int f_spare[6]; }; /* * IA-32 ELF specific definitions for IA-64. */ #define _ASM_IA64_ELF_H /* Don't include elf.h */ #include <linux/sched.h> #include <asm/processor.h> /* * This is used to ensure we don't load something for the wrong architecture. */ #define elf_check_arch(x) ((x) == EM_386) /* * These are used to set parameters in the core dumps. */ #define ELF_CLASS ELFCLASS32 #define ELF_DATA ELFDATA2LSB #define ELF_ARCH EM_386 #define IA32_PAGE_OFFSET 0xc0000000 #define USE_ELF_CORE_DUMP #define ELF_EXEC_PAGESIZE PAGE_SIZE /* * This is the location that an ET_DYN program is loaded if exec'ed. * Typical use of this is to invoke "./ld.so someprog" to test out a * new version of the loader. We need to make sure that it is out of * the way of the program that it will "exec", and that there is * sufficient room for the brk. */ #define ELF_ET_DYN_BASE (IA32_PAGE_OFFSET/3 + 0x1000000) void ia64_elf32_init(struct pt_regs *regs); #define ELF_PLAT_INIT(_r) ia64_elf32_init(_r) #define elf_addr_t u32 #define elf_caddr_t u32 /* ELF register definitions. This is needed for core dump support. */ #define ELF_NGREG 128 /* XXX fix me */ #define ELF_NFPREG 128 /* XXX fix me */ typedef unsigned long elf_greg_t; typedef elf_greg_t elf_gregset_t[ELF_NGREG]; typedef struct { unsigned long w0; unsigned long w1; } elf_fpreg_t; typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG]; /* This macro yields a bitmask that programs can use to figure out what instruction set this CPU supports. */ #define ELF_HWCAP 0 /* This macro yields a string that ld.so will use to load implementation specific libraries for optimization. Not terribly relevant until we have real hardware to play with... */ #define ELF_PLATFORM 0 #ifdef __KERNEL__ # define SET_PERSONALITY(EX,IBCS2) \ (current->personality = (IBCS2) ? PER_SVR4 : PER_LINUX) #endif #define IA32_EFLAG 0x200 /* * IA-32 ELF specific definitions for IA-64. */ #define __USER_CS 0x23 #define __USER_DS 0x2B #define SEG_LIM 32 #define SEG_TYPE 52 #define SEG_SYS 56 #define SEG_DPL 57 #define SEG_P 59 #define SEG_DB 62 #define SEG_G 63 #define FIRST_TSS_ENTRY 6 #define FIRST_LDT_ENTRY (FIRST_TSS_ENTRY+1) #define _TSS(n) ((((unsigned long) n)<<4)+(FIRST_TSS_ENTRY<<3)) #define _LDT(n) ((((unsigned long) n)<<4)+(FIRST_LDT_ENTRY<<3)) #define IA64_SEG_DESCRIPTOR(base, limit, segtype, nonsysseg, dpl, segpresent, segdb, granularity) \ ((base) | \ (limit << SEG_LIM) | \ (segtype << SEG_TYPE) | \ (nonsysseg << SEG_SYS) | \ (dpl << SEG_DPL) | \ (segpresent << SEG_P) | \ (segdb << SEG_DB) | \ (granularity << SEG_G)) #define IA32_SEG_BASE 16 #define IA32_SEG_TYPE 40 #define IA32_SEG_SYS 44 #define IA32_SEG_DPL 45 #define IA32_SEG_P 47 #define IA32_SEG_HIGH_LIMIT 48 #define IA32_SEG_AVL 52 #define IA32_SEG_DB 54 #define IA32_SEG_G 55 #define IA32_SEG_HIGH_BASE 56 #define IA32_SEG_DESCRIPTOR(base, limit, segtype, nonsysseg, dpl, segpresent, avl, segdb, granularity) \ ((limit & 0xFFFF) | \ (base & 0xFFFFFF << IA32_SEG_BASE) | \ (segtype << IA32_SEG_TYPE) | \ (nonsysseg << IA32_SEG_SYS) | \ (dpl << IA32_SEG_DPL) | \ (segpresent << IA32_SEG_P) | \ (((limit >> 16) & 0xF) << IA32_SEG_HIGH_LIMIT) | \ (avl << IA32_SEG_AVL) | \ (segdb << IA32_SEG_DB) | \ (granularity << IA32_SEG_G) | \ (((base >> 24) & 0xFF) << IA32_SEG_HIGH_BASE)) #define IA32_CR0 0x80000001 /* Enable PG and PE bits */ #define IA32_CR4 0 /* No architectural extensions */ /* * IA32 floating point control registers starting values */ #define IA32_FSR_DEFAULT 0x555500000 /* set all tag bits */ #define IA32_FCR_DEFAULT 0x33f /* single precision, all masks */ #define ia32_start_thread(regs,new_ip,new_sp) do { \ set_fs(USER_DS); \ ia64_psr(regs)->cpl = 3; /* set user mode */ \ ia64_psr(regs)->ri = 0; /* clear return slot number */ \ ia64_psr(regs)->is = 1; /* IA-32 instruction set */ \ regs->cr_iip = new_ip; \ regs->r12 = new_sp; \ regs->ar_rnat = 0; \ regs->loadrs = 0; \ } while (0) extern void ia32_gdt_init (void); extern long ia32_setup_frame1 (int sig, struct k_sigaction *ka, siginfo_t *info, sigset_t *set, struct pt_regs *regs); extern void ia32_init_addr_space (struct pt_regs *regs); extern int ia32_setup_arg_pages (struct linux_binprm *bprm); #endif /* !CONFIG_IA32_SUPPORT */ #endif /* _ASM_IA64_IA32_H */ |