src/sys/syscall.s

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 #define IGNORE_STDS_H
  11 #include <afs/param.h>
  12
  13 #if defined(AFS_AIX32_ENV) && defined(RIOS)
  14         /*
  15          * This is never be referenced, and is only here as placeholder;
  16          * that's AIX, I'm afraid.
  17          */
  18         .globl  .rios_dummy_sysc[PR]
  19         .csect  .rios_dummy_sysc[PR]
  20         t       4,1,1           # trap always
  21 #ifdef  AFS_AIX41_ENV
  22         br                      # just return
  23 #else
  24
  25         bcr     14, 0           # and return
  26 #endif
  27 #endif
  28 #ifdef __hp9000s800
  29         .CODE
  30 dummysysc
  31         .PROC
  32         .CALLINFO FRAME=0
  33         .ENTRY
  34         STW     %r19,-28(0,%r30)
  35         LDIL    L%0xc0000004,%r1
  36         BLE     R%0xc0000004(%sr7,%r1)
  37         LDI     4,%r22  ; Load the value here (in place of 4)
  38         OR,=    0,22,0
  39         B       $cerror
  40         LDW     -28(0,%r30),%r19
  41         BV,N    %r0(%r2)
  42         OR      0,0,0
  43         .EXIT
  44         .PROCEND
  45
  46         .EXPORT dummysysc,ENTRY
  47         .IMPORT $cerror,CODE
  48         .END
  49 #else
  50 #if defined(AFS_SGI_ENV)
  51 #include <regdef.h>
  52 #include <sys/asm.h>
  53
  54 LEAF(afs_syscall)
  55         li      v0,AFS_SYSCALL
  56         syscall
  57         beq     a3,zero,9f
  58         la      t9, _cerror
  59         j       t9
  60 9:      j       ra
  61 .end    afs_syscall
  62 #endif /* AFS_SGI_ENV */
  63 #endif
  64
  65 #if defined(__linux__) && defined(__ELF__)
  66         .section .note.GNU-stack,"",%progbits
  67 #endif