Subversion Repositories openrisc_2011-10-31

/* Unwinder test program.

   Copyright 2006, 2007, 2008, 2009, 2010 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 gdb2029 (void);

int

main (void)

{

  gdb2029 ();

  optimized_1 ();

  return 0;

}

void

optimized_1_marker (void)

{

}

void

gdb2029_marker (void)

{

}

/* A typical PIC prologue from GCC.  */

asm(".text\n"

    "    .p2align 3\n"

    SYMBOL (gdb2029) ":\n"

    "   stwu    %r1, -32(%r1)\n"

    "   mflr    %r0\n"

    "   bcl-    20,31,.+4\n"

    "   stw     %r30, 24(%r1)\n"

    "   mflr    %r30\n"

    "   stw     %r0, 36(%r1)\n"

    "   bl      gdb2029_marker\n"

    "   lwz     %r0, 36(%r1)\n"

    "   lwz     %r30, 24(%r1)\n"

    "   mtlr    %r0\n"

    "   addi    %r1, %r1, 32\n"

    "   blr");

/* A heavily scheduled prologue.  */

asm(".text\n"

    "   .p2align 3\n"

    SYMBOL (optimized_1) ":\n"

    "   stwu    %r1,-32(%r1)\n"

    "   lis     %r9,-16342\n"

    "   lis     %r11,-16342\n"

    "   mflr    %r0\n"

    "   addi    %r11,%r11,3776\n"

    "   stmw    %r27,12(%r1)\n"

    "   addi    %r31,%r9,3152\n"

    "   cmplw   %cr7,%r31,%r11\n"

    "   stw     %r0,36(%r1)\n"

    "   mr      %r30,%r3\n"

    "   bl      optimized_1_marker\n"

    "   lwz     %r0,36(%r1)\n"

    "   lmw     %r27,12(%r1)\n"

    "   addi    %r1,%r1,32\n"

    "   blr");