Subversion Repositories openrisc_2011-10-31

# Copyright 2008, 2009, 2010 Free Software Foundation, Inc.

#

# 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, write to the Free Software

# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

#

# This file is part of the gdb testsuite.

if $tracelevel {

    strace $tracelevel

}

# Test single stepping through atomic sequences beginning with

# a lwarx/ldarx instruction and ending with a stwcx/stdcx

# instruction.

if ![istarget "powerpc64-*"] then {

    verbose "Skipping testing of powerpc64 single stepping over atomic sequences."

    return

}

set testfile "ppc64-atomic-inst"

set srcfile ${testfile}.c

set binfile ${objdir}/${subdir}/${testfile}

set compile_flags "debug quiet"

if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [concat $compile_flags additional_flags=-m64]] != "" } {

    unsupported "Testcase compile failed."

    return -1

}

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

if ![runto_main] then {

    perror "Couldn't run to breakpoint"

    continue

}

set bp1 [gdb_get_line_number "lwarx"]

gdb_breakpoint "$bp1" "Breakpoint $decimal at $hex" \

  "Set the breakpoint at the start of the sequence"

gdb_test continue "Continuing.*Breakpoint $decimal.*" \

  "Continue until breakpoint"

gdb_test next ".*__asm __volatile.*" \

  "Step through the lwarx/stwcx sequence"

gdb_test next ".*return 0.*" \

  "Step through the ldarx/stdcx sequence"