packages/hal/synth/i386linux/v2_0/src/syscall-i386-linux-1.0.S

   1 //=============================================================================
   2 //
   3 //      syscall-i386-linux-1.0.S
   4 //
   5 //      Linux system call interface functions for i386.
   6 //
   7 //=============================================================================
   8 //####ECOSGPLCOPYRIGHTBEGIN####
   9 // -------------------------------------------
  10 // This file is part of eCos, the Embedded Configurable Operating System.
  11 // Copyright (C) 2005 eCosCentric Ltd.
  12 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
  13 //
  14 // eCos is free software; you can redistribute it and/or modify it under
  15 // the terms of the GNU General Public License as published by the Free
  16 // Software Foundation; either version 2 or (at your option) any later version.
  17 //
  18 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
  19 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
  20 // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  21 // for more details.
  22 //
  23 // You should have received a copy of the GNU General Public License along
  24 // with eCos; if not, write to the Free Software Foundation, Inc.,
  25 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  26 //
  27 // As a special exception, if other files instantiate templates or use macros
  28 // or inline functions from this file, or you compile this file and link it
  29 // with other works to produce a work based on this file, this file does not
  30 // by itself cause the resulting work to be covered by the GNU General Public
  31 // License. However the source code for this file must still be made available
  32 // in accordance with section (3) of the GNU General Public License.
  33 //
  34 // This exception does not invalidate any other reasons why a work based on
  35 // this file might be covered by the GNU General Public License.
  36 //
  37 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
  38 // at http://sources.redhat.com/ecos/ecos-license/
  39 // -------------------------------------------
  40 //####ECOSGPLCOPYRIGHTEND####
  41 //=============================================================================
  42 //#####DESCRIPTIONBEGIN####
  43 //
  44 // Author(s):   proven
  45 // Contributors:proven,bartv
  46 // Date:        1998-10-06
  47 // Description: Machine dependent syscalls for i386/i486/i586
  48 //
  49 //####DESCRIPTIONEND####
  50 //
  51 //=============================================================================
  52
  53 // The numbers come from <asm/unistd.h>
  54 #define SYS_setup               0 // Used only by init, to get system going.
  55 #define SYS_exit                1
  56 #define SYS_fork                2
  57 #define SYS_read                3
  58 #define SYS_write               4
  59 #define SYS_open                5
  60 #define SYS_close               6
  61 #define SYS_waitpid             7
  62 #define SYS_creat               8
  63 #define SYS_link                9
  64 #define SYS_unlink              10
  65 #define SYS_execve              11
  66 #define SYS_chdir               12
  67 #define SYS_time                13
  68 #define SYS_prev_mknod          14
  69 #define SYS_chmod               15
  70 #define SYS_lchown              16
  71 #define SYS_break               17
  72 #define SYS_oldstat             18
  73 #define SYS_lseek               19
  74 #define SYS_getpid              20
  75 #define SYS_mount               21
  76 #define SYS_umount              22
  77 #define SYS_setuid              23
  78 #define SYS_getuid              24
  79 #define SYS_stime               25
  80 #define SYS_ptrace              26
  81 #define SYS_alarm               27
  82 #define SYS_oldfstat            28
  83 #define SYS_pause               29
  84 #define SYS_utime               30
  85 #define SYS_stty                31
  86 #define SYS_gtty                32
  87 #define SYS_access              33
  88 #define SYS_nice                34
  89 #define SYS_ftime               35
  90 #define SYS_sync                36
  91 #define SYS_kill                37
  92 #define SYS_rename              38
  93 #define SYS_mkdir               39
  94 #define SYS_rmdir               40
  95 #define SYS_dup                 41
  96 #define SYS_pipe                42
  97 #define SYS_times               43
  98 #define SYS_prof                44
  99 #define SYS_brk                 45
 100 #define SYS_setgid              46
 101 #define SYS_getgid              47
 102 #define SYS_signal              48
 103 #define SYS_geteuid             49
 104 #define SYS_getegid             50
 105 #define SYS_acct                51
 106 #define SYS_phys                52
 107 #define SYS_lock                53
 108 #define SYS_ioctl               54
 109 #define SYS_fcntl               55
 110 #define SYS_mpx                 56
 111 #define SYS_setpgid             57
 112 #define SYS_ulimit              58
 113 #define SYS_oldolduname         59
 114 #define SYS_umask               60
 115 #define SYS_chroot              61
 116 #define SYS_prev_ustat          62
 117 #define SYS_dup2                63
 118 #define SYS_getppid             64
 119 #define SYS_getpgrp             65
 120 #define SYS_setsid              66
 121 #define SYS_sigaction           67
 122 #define SYS_siggetmask          68
 123 #define SYS_sigsetmask          69
 124 #define SYS_setreuid            70
 125 #define SYS_setregid            71
 126 #define SYS_sigsuspend          72
 127 #define SYS_sigpending          73
 128 #define SYS_sethostname         74
 129 #define SYS_setrlimit           75
 130 #define SYS_getrlimit           76
 131 #define SYS_getrusage           77
 132 #define SYS_gettimeofday        78
 133 #define SYS_settimeofday        79
 134 #define SYS_getgroups           80
 135 #define SYS_setgroups           81
 136 #define SYS_select              82
 137 #define SYS_symlink             83
 138 #define SYS_oldlstat            84
 139 #define SYS_readlink            85
 140 #define SYS_uselib              86
 141 #define SYS_swapon              87
 142 #define SYS_reboot              88
 143 #define SYS_readdir             89
 144 #define SYS_mmapx               90
 145 #define SYS_munmap              91
 146 #define SYS_truncate            92
 147 #define SYS_ftruncate           93
 148 #define SYS_fchmod              94
 149 #define SYS_fchown              95
 150 #define SYS_getpriority         96
 151 #define SYS_setpriority         97
 152 #define SYS_profil              98
 153 #define SYS_statfs              99
 154 #define SYS_fstatfs             100
 155 #define SYS_ioperm              101
 156 #define SYS_socketcall          102
 157 #define SYS_klog                103
 158 #define SYS_setitimer           104
 159 #define SYS_getitimer           105
 160 #define SYS_newstat             106
 161 #define SYS_newlstat            107
 162 #define SYS_newfstat            108
 163 #define SYS_olduname            109
 164 #define SYS_iopl                110
 165 #define SYS_vhangup             111
 166 #define SYS_idle                112
 167 #define SYS_vm86old             113
 168 #define SYS_wait4               114
 169 #define SYS_swapoff             115
 170 #define SYS_sysinfo             116
 171 #define SYS_ipc                 117
 172 #define SYS_fsync               118
 173 #define SYS_sigreturn           119
 174 #define SYS_clone               120
 175 #define SYS_setdomainname       121
 176 #define SYS_uname               122
 177 #define SYS_modify_ldt          123
 178 #define SYS_adjtimex            124
 179 #define SYS_mprotect            125
 180 #define SYS_sigprocmask         126
 181 #define SYS_create_module       127
 182 #define SYS_init_module         128
 183 #define SYS_delete_module       129
 184 #define SYS_get_kernel_syms     130
 185 #define SYS_quotactl            131
 186 #define SYS_getpgid             132
 187 #define SYS_fchdir              133
 188 #define SYS_bdflush             134
 189 #define SYS_sysfs               135
 190 #define SYS_personality         136
 191 #define SYS_afs_syscall         137 // Syscall for Andrew File System
 192 #define SYS_setfsuid            138
 193 #define SYS_setfsgid            139
 194 #define SYS__llseek             140
 195 #define SYS_getdents            141
 196 #define SYS__newselect          142
 197 #define SYS_flock               143
 198 #define SYS_syscall_flock       143
 199 #define SYS_msync               144
 200 #define SYS_readv               145
 201 #define SYS_syscall_readv       145
 202 #define SYS_writev              146
 203 #define SYS_syscall_writev      146
 204 #define SYS_getsid              147
 205 #define SYS_fdatasync           148
 206 #define SYS__sysctl             149
 207 #define SYS_mlock               150
 208 #define SYS_munlock             151
 209 #define SYS_mlockall            152
 210 #define SYS_munlockall          153
 211 #define SYS_sched_setparam      154
 212 #define SYS_sched_getparam      155
 213 #define SYS_sched_setscheduler  156
 214 #define SYS_sched_getscheduler  157
 215 #define SYS_sched_yield         158
 216 #define SYS_sched_get_priority_max      159
 217 #define SYS_sched_get_priority_min      160
 218 #define SYS_sched_rr_get_interval       161
 219 #define SYS_nanosleep           162
 220 #define SYS_mremap              163
 221 #define SYS_setresuid           164
 222 #define SYS_getresuid           165
 223 #define SYS_vm86                166
 224 #define SYS_query_module        167
 225 #define SYS_poll                168
 226 #define SYS_nfsservctl          169
 227 #define SYS_setresgid           170
 228 #define SYS_getresgid           171
 229 #define SYS_prctl               172
 230 #define SYS_rt_sigreturn        173
 231 #define SYS_rt_sigaction        174
 232 #define SYS_rt_sigprocmask      175
 233 #define SYS_rt_sigpending       176
 234 #define SYS_rt_sigtimedwait     177
 235 #define SYS_rt_sigqueueinfo     178
 236 #define SYS_rt_sigsuspend       179
 237 #define SYS_pread               180
 238 #define SYS_pwrite              181
 239 #define SYS_chown               182
 240 #define SYS_getcwd              183
 241 #define SYS_capget              184
 242 #define SYS_capset              185
 243 #define SYS_sigaltstack         186
 244 #define SYS_sendfile            187
 245 #define SYS_getpmsg             188
 246 #define SYS_putpmsg             189
 247 #define SYS_vfork               190
 248 #define SYS_ugetrlimit          191
 249 #define SYS_mmap2               192
 250 #define SYS_truncate64          193
 251 #define SYS_ftruncate64         194
 252 #define SYS_stat64              195
 253 #define SYS_lstat64             196
 254 #define SYS_fstat64             197
 255 #define SYS_lchown32            198
 256 #define SYS_getuid32            199
 257 #define SYS_getgid32            200
 258 #define SYS_geteuid32           201
 259 #define SYS_getegid32           202
 260 #define SYS_setreuid32          203
 261 #define SYS_setregid32          204
 262 #define SYS_getgroups32         205
 263 #define SYS_setgroups32         206
 264 #define SYS_fchown32            207
 265 #define SYS_setresuid32         208
 266 #define SYS_getresuid32         209
 267 #define SYS_setresgid32         210
 268 #define SYS_getresgid32         211
 269 #define SYS_chown32             212
 270 #define SYS_setuid32            213
 271 #define SYS_setgid32            214
 272 #define SYS_setfsuid32          215
 273 #define SYS_setfsgid32          216
 274 #define SYS_pivot_root          217
 275 #define SYS_mincore             218
 276 #define SYS_madvise             219
 277 #define SYS_madvise1            219
 278 #define SYS_getdents64          220
 279 #define SYS_fcntl64             221
 280
 281
 282 #define NAME(X) cyg_hal_sys_##X
 283 #define END(X)  1: ; .type NAME(X),@function ; .size NAME(X),1b - NAME(X)
 284
 285 #define SYSCALL0(x)                             \
 286         .globl NAME(x) ;                        \
 287                                                 \
 288 NAME(x):                                        \
 289                                                 \
 290         push %ebx;                              \
 291         lea     SYS_##x, %eax;                  \
 292         int $0x80;                              \
 293         pop %ebx;                               \
 294         ret;                                    \
 295                                                 \
 296         END(x)
 297
 298 #define SYSCALL1(x)                             \
 299         .globl NAME(x) ;                        \
 300                                                 \
 301 NAME(x):                                        \
 302                                                 \
 303         push %ebx;                              \
 304         mov 8(%esp), %ebx;                      \
 305         lea     SYS_##x, %eax;                  \
 306         int $0x80;                              \
 307         pop %ebx;                               \
 308         ret;                                    \
 309                                                 \
 310     END(x)
 311
 312 #define SYSCALL2(x)                             \
 313         .globl NAME(x) ;                        \
 314                                                 \
 315 NAME(x):                                        \
 316                                                 \
 317         push %ebx;                              \
 318         mov 8(%esp), %ebx;                      \
 319         mov 12(%esp), %ecx;                     \
 320         lea     SYS_##x, %eax;                  \
 321         int $0x80;                              \
 322         pop %ebx;                               \
 323         ret;                                    \
 324                                                 \
 325     END(x)
 326
 327 #define SYSCALL3(x)                             \
 328         .globl NAME(x) ;                        \
 329                                                 \
 330 NAME(x):                                        \
 331                                                 \
 332         push %ebx;                              \
 333         mov 8(%esp), %ebx;                      \
 334         mov 12(%esp), %ecx;                     \
 335         mov 16(%esp), %edx;                     \
 336         lea     SYS_##x, %eax;                  \
 337         int $0x80;                              \
 338         pop %ebx;                               \
 339         ret;                                    \
 340         END(x)
 341
 342
 343 #define SYSCALL4(x)                             \
 344         .globl NAME(x) ;                        \
 345                                                 \
 346 NAME(x):                                        \
 347                                                 \
 348         push %ebx;                              \
 349         push %esi;                              \
 350         mov 12(%esp), %ebx;                     \
 351         mov 16(%esp), %ecx;                     \
 352         mov 20(%esp), %edx;                     \
 353         mov 24(%esp), %esi;                     \
 354         lea     SYS_##x, %eax;                  \
 355         int $0x80;                              \
 356         pop %esi;                               \
 357         pop %ebx;                               \
 358         ret;                                    \
 359         END(x)
 360
 361 #define SYSCALL5(x)                             \
 362         .globl NAME(x) ;                        \
 363                                                 \
 364 NAME(x):                                        \
 365                                                 \
 366         push %ebx;                              \
 367         push %esi;                              \
 368         push %edi;                              \
 369         mov 16(%esp), %ebx;                     \
 370         mov 20(%esp), %ecx;                     \
 371         mov 24(%esp), %edx;                     \
 372         mov 28(%esp), %esi;                     \
 373         mov 32(%esp), %edi;                     \
 374         lea     SYS_##x, %eax;                  \
 375         int $0x80;                              \
 376         pop %edi;                               \
 377         pop %esi;                               \
 378         pop %ebx;                               \
 379         ret;                                    \
 380         END(x)
 381
 382
 383 //==========================================================================
 384 // Initial asm stuff for all functions.
 385         .text
 386         .align  2
 387
 388 SYSCALL1(exit)
 389 SYSCALL0(fork)
 390 SYSCALL3(read)
 391 SYSCALL3(write)
 392 SYSCALL3(open)
 393 SYSCALL1(close)
 394 SYSCALL3(waitpid)
 395 SYSCALL2(creat)
 396 SYSCALL2(link)
 397 SYSCALL1(unlink)
 398 SYSCALL3(execve)
 399 SYSCALL1(chdir)
 400 SYSCALL1(time)
 401 SYSCALL2(chmod)
 402 SYSCALL3(lseek)
 403 SYSCALL0(getpid)
 404 SYSCALL0(getuid)
 405 SYSCALL1(nice)
 406 SYSCALL2(kill)
 407 SYSCALL1(dup)
 408 SYSCALL1(pipe)
 409 SYSCALL1(brk)
 410 SYSCALL3(ioctl)
 411 SYSCALL3(fcntl)
 412 SYSCALL1(chroot)
 413 SYSCALL2(dup2)
 414 SYSCALL3(sigaction)
 415 SYSCALL2(gettimeofday)
 416 SYSCALL1(mmapx)
 417 SYSCALL2(socketcall)
 418 SYSCALL3(setitimer)
 419 SYSCALL3(sigprocmask)
 420 SYSCALL5(_newselect)
 421 SYSCALL3(readv)
 422 SYSCALL3(writev)
 423 SYSCALL1(fdatasync)
 424 SYSCALL2(getcwd)
 425 SYSCALL2(access)
 426 SYSCALL3(readdir)
 427 SYSCALL2(oldlstat)
 428 SYSCALL2(oldfstat)
 429 SYSCALL2(oldstat)
 430 SYSCALL2(newlstat)
 431 SYSCALL2(newfstat)
 432 SYSCALL2(newstat)
 433 SYSCALL2(mkdir)
 434 SYSCALL5(ipc)
 435
 436 // ----------------------------------------------------------------------------
 437 // Special support for returning from a signal handler. In theory no special
 438 // action is needed, but with some versions of the kernel on some
 439 // architectures that is not good enough. Instead returning has to happen
 440 // via another system call.
 441
 442         .align 16
 443         .global cyg_hal_sys_restore_rt
 444 cyg_hal_sys_restore_rt:
 445         movl    $SYS_rt_sigreturn, %eax
 446         int     $0x80
 447 1:
 448         .type __restore_rt,@function
 449         .size __restore_rt,1b - __restore_rt
 450
 451         .align 8
 452         .global cyg_hal_sys_restore
 453 cyg_hal_sys_restore:
 454         popl    %eax
 455         movl    $SYS_sigreturn, %eax
 456         int     $0x80
 457 1:
 458         .type __restore,@function
 459         .size __restore,1b - __restore