Subversion Repositories openrisc_2011-10-31

/* Unwinder test program.

   Copyright (C) 2003, 2004, 2006, 2007, 2008 Free Software Foundation, Inc.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#ifdef SYMBOL_PREFIX

#define SYMBOL(str)     SYMBOL_PREFIX #str

#else

#define SYMBOL(str)     #str

#endif

void gdb1253 (void);

void gdb1718 (void);

void gdb1338 (void);

void jump_at_beginning (void);

int

main (void)

{

  standard ();

  stack_align_ecx ();

  stack_align_edx ();

  stack_align_eax ();

  gdb1253 ();

  gdb1718 ();

  gdb1338 ();

  jump_at_beginning ();

  return 0;

}

/* A normal prologue.  */

asm(".text\n"

    "    .align 8\n"

    SYMBOL (standard) ":\n"

    "    pushl %ebp\n"

    "    movl  %esp, %ebp\n"

    "    pushl %edi\n"

    "    int   $0x03\n"

    "    leave\n"

    "    ret\n");

/* Relevant part of the prologue from symtab/1253.  */

asm(".text\n"

    "    .align 8\n"

    SYMBOL (gdb1253) ":\n"

    "    pushl %ebp\n"

    "    xorl  %ecx, %ecx\n"

    "    movl  %esp, %ebp\n"

    "    pushl %edi\n"

    "    int   $0x03\n"

    "    leave\n"

    "    ret\n");

/* Relevant part of the prologue from backtrace/1718.  */

asm(".text\n"

    "    .align 8\n"

    SYMBOL (gdb1718) ":\n"

    "    pushl %ebp\n"

    "    movl  $0x11111111, %eax\n"

    "    movl  %esp, %ebp\n"

    "    pushl %esi\n"

    "    movl  $0x22222222, %esi\n"

    "    pushl %ebx\n"

    "    int   $0x03\n"

    "    leave\n"

    "    ret\n");

/* Relevant part of the prologue from backtrace/1338.  */

asm(".text\n"

    "    .align 8\n"

    SYMBOL (gdb1338) ":\n"

    "    pushl %edi\n"

    "    pushl %esi\n"

    "    pushl %ebx\n"

    "    int   $0x03\n"

    "    popl  %ebx\n"

    "    popl  %esi\n"

    "    popl  %edi\n"

    "    ret\n");

/* The purpose of this function is to verify that, during prologue

   skip, GDB does not follow a jump at the beginnning of the "real"

   code.  */

asm(".text\n"

    "    .align 8\n"

    SYMBOL (jump_at_beginning) ":\n"

    "    pushl %ebp\n"

    "    movl  %esp,%ebp\n"

    "    jmp   .gdbjump\n"

    "    nop\n"

    ".gdbjump:\n"

    "    movl  %ebp,%esp\n"

    "    popl  %ebp\n"

    "    ret\n");

asm(".text\n"

    "    .align 8\n"

    SYMBOL (stack_align_ecx) ":\n"

    "    leal  4(%esp), %ecx\n"

    "    andl  $-16, %esp\n"

    "    pushl -4(%ecx)\n"

    "    pushl %ebp\n"

    "    movl  %esp, %ebp\n"

    "    pushl %edi\n"

    "    pushl %ecx\n"

    "    int   $0x03\n"

    "    popl  %ecx\n"

    "    popl  %edi\n"

    "    popl  %ebp\n"

    "    leal  -4(%ecx), %esp\n"

    "    ret\n");

asm(".text\n"

    "    .align 8\n"

    SYMBOL (stack_align_edx) ":\n"

    "    leal  4(%esp), %edx\n"

    "    andl  $-16, %esp\n"

    "    pushl -4(%edx)\n"

    "    pushl %ebp\n"

    "    movl  %esp, %ebp\n"

    "    pushl %edi\n"

    "    pushl %ecx\n"

    "    int   $0x03\n"

    "    popl  %ecx\n"

    "    popl  %edi\n"

    "    popl  %ebp\n"

    "    leal  -4(%edx), %esp\n"

    "    ret\n");

asm(".text\n"

    "    .align 8\n"

    SYMBOL (stack_align_eax) ":\n"

    "    leal  4(%esp), %eax\n"

    "    andl  $-16, %esp\n"

    "    pushl -4(%eax)\n"

    "    pushl %ebp\n"

    "    movl  %esp, %ebp\n"

    "    pushl %edi\n"

    "    pushl %ecx\n"

    "    int   $0x03\n"

    "    popl  %ecx\n"

    "    popl  %edi\n"

    "    popl  %ebp\n"

    "    leal  -4(%eax), %esp\n"

    "    ret\n");