# Copyright (C) 1997-2020 Free Software Foundation, Inc.
#
# This file is part of DejaGnu.
#
# DejaGnu 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.
#
# DejaGnu 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 DejaGnu; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.

# This is a list of toolchains that are supported on this board.
set_board_info target_install {pru-elf}

# Load the generic configuration for this board, This will define a basic
# set of routines needed by the tool to communicate with the board.
load_generic_config "sim"

# basic-sim.exp is a basic description for the standard Cygnus simulator.
load_base_board_description "basic-sim"

# The name of the simulator is "pru".
setup_sim pru

# No multilib flags needed by default.
process_multilib_options ""

# The compiler used to build for this board. This has *nothing* to do
# with what compiler is tested if we're testing gcc.
set_board_info compiler  "[find_gcc]"

# PRU arguments are mostly passed in registers. But GCC regression tests
# are written with other machines in mind, so the builtin_apply's
# aruments stack size is non-zero. On top of that, the stack top for
# PRU's main is very close to the end of SRAM. Close enough that the
# spurious "stack copy" reads outside of the DRAM area, causing a
# simulator abort. For example, see how builtin-apply-3.c copies 16
# bytes from the arguments stack, while PRU has passed all of its
# arguments in registers.
#
# Temporary solution is to add a few bytes of "guard" space, so that
# existing GCC testcases can be executed successfully. Hence set the
# stack top a few bytes below the simulator's DRAM end.
set workaround_ldflags "-Wl,--defsym=_stack_top=0x3fff800"

set_board_info cflags  "-mmcu=sim [libgloss_include_flags] [newlib_include_flags]"
set_board_info ldflags  "[libgloss_link_flags] [newlib_link_flags] $workaround_ldflags"

# No support for signals on this target.
set_board_info gdb,nosignals 1

# Low-end workstations might require even larger timeouts.
set timeout 120