1  /* Copyright 2007 Google LLC
  2   *
  3   * Redistribution and use in source and binary forms, with or without
  4   * modification, are permitted provided that the following conditions are
  5   * met:
  6   *
  7   *     * Redistributions of source code must retain the above copyright
  8   * notice, this list of conditions and the following disclaimer.
  9   *     * Redistributions in binary form must reproduce the above
 10   * copyright notice, this list of conditions and the following disclaimer
 11   * in the documentation and/or other materials provided with the
 12   * distribution.
 13   *     * Neither the name of Google LLC nor the names of its
 14   * contributors may be used to endorse or promote products derived from
 15   * this software without specific prior written permission.
 16   *
 17   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 18   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 19   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 20   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 21   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 22   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 23   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 24   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 25   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 26   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 27   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 28   */
 29  
 30  /* stackwalker_selftest_sol.s
 31   * On Solaris, the recommeded compiler is CC, so we can not use gcc inline
 32   * asm, use this method instead.
 33   *
 34   * How to compile: as -P -L -D_ASM -D_STDC -K PIC -o \
 35   *                 src/processor/stackwalker_selftest_sol.o \
 36   *                 src/processor/stackwalker_selftest_sol.s
 37   *
 38   * Author: Michael Shang
 39   */
 40  
 41  #include <sys/asm_linkage.h>
 42  
 43  #if defined(__i386)
 44  
 45  
 46  ENTRY(GetEBP) 
 47        pushl    %ebp
 48        movl     %esp,%ebp
 49        subl     $0x00000004,%esp
 50        movl     0x00000000(%ebp),%eax
 51        movl     %eax,0xfffffffc(%ebp)
 52        movl     0xfffffffc(%ebp),%eax
 53        leave    
 54        ret      
 55  SET_SIZE(GetEBP)
 56  
 57  ENTRY(GetEIP) 
 58        pushl    %ebp
 59        movl     %esp,%ebp
 60        subl     $0x00000004,%esp
 61        movl     0x00000004(%ebp),%eax
 62        movl     %eax,0xfffffffc(%ebp)
 63        movl     0xfffffffc(%ebp),%eax
 64        leave    
 65        ret      
 66  SET_SIZE(GetEIP)
 67  
 68  ENTRY(GetESP) 
 69        pushl    %ebp
 70        movl     %esp,%ebp
 71        subl     $0x00000004,%esp
 72        movl     %ebp,%eax
 73        movl     %eax,0xfffffffc(%ebp)
 74        movl     0xfffffffc(%ebp),%eax
 75        addl     $0x00000008,%eax
 76        leave    
 77        ret      
 78  SET_SIZE(GetESP)
 79  
 80  
 81  #elif defined(__sparc)
 82  
 83  
 84  ENTRY(GetPC)
 85        save     %sp, -120, %sp
 86        mov      %i7, %i4
 87        inccc    8, %i4
 88        mov      %i4, %i0
 89        ret      
 90        restore  
 91  SET_SIZE(GetPC)
 92  
 93  ENTRY(GetSP)
 94        save     %sp, -120, %sp
 95        mov      %fp, %i4
 96        mov      %i4, %i0
 97        ret      
 98        restore  
 99  SET_SIZE(GetSP)
100  
101  ENTRY(GetFP)
102        save     %sp, -120, %sp
103        ld       [%fp + 56], %g1
104        mov      %g1, %i0
105        ret      
106        restore  
107  SET_SIZE(GetFP)
108  
109  
110  #endif  // __i386 || __sparc